From: Shiji Yang Date: Sat, 17 Jun 2023 11:30:59 +0000 (+0800) Subject: ramips: add proper system clock and reset driver support for legacy SoCs X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=1f818b09f8ae1cbb4a2ae7ddaccaa9ce0c12ca93;p=openwrt%2Fstaging%2Frobimarko.git ramips: add proper system clock and reset driver support for legacy SoCs This series of upstream patches properly implement a clock and reset driver for old ralink SoCs[1]. And it includes some related fixes[2] and improvements[3][4]. All patches have been merged into linux-next. They will be part of upcoming Linux 6.5. In order to switch to the new system controller driver, all clocks and resets properties in SoC dtsi have been updated, and kernel symbol "CONFIG_CLK_MTMIPS" have been added to the kernel config files. [1] https://lore.kernel.org/all/20230619040941.1340372-1-sergio.paracuellos@gmail.com [2] https://lore.kernel.org/all/20230622-mips-ralink-clk-wuninitialized-v1-1-ea9041240d10@kernel.org [3] https://lore.kernel.org/all/OSYP286MB03120BABB25900E113ED42B7BC5CA@OSYP286MB0312.JPNP286.PROD.OUTLOOK.COM [4] https://lore.kernel.org/all/TYAP286MB03151148AF8C054621DD55C3BC23A@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM Tested on Motorola MWR03 (MT7628) Tested on Haier HW-L1W (MT7620) Signed-off-by: Shiji Yang --- diff --git a/target/linux/ramips/dts/mt7620a.dtsi b/target/linux/ramips/dts/mt7620a.dtsi index 4b6fa60dc8..87cd119792 100644 --- a/target/linux/ramips/dts/mt7620a.dtsi +++ b/target/linux/ramips/dts/mt7620a.dtsi @@ -40,15 +40,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,mt7620a-sysc", "ralink,rt3050-sysc", "syscon"; + sysc: syscon@0 { + compatible = "ralink,mt7620-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,mt7620a-timer", "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 5>; + interrupt-parent = <&intc>; interrupts = <1>; }; @@ -57,7 +61,9 @@ compatible = "ralink,mt7620a-wdt", "ralink,rt2880-wdt"; reg = <0x120 0x10>; - resets = <&rstctrl 8>; + clocks = <&sysc 6>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -68,7 +74,7 @@ compatible = "ralink,mt7620a-intc", "ralink,rt2880-intc"; reg = <0x200 0x100>; - resets = <&rstctrl 19>; + resets = <&sysc 19>; reset-names = "intc"; interrupt-controller; @@ -82,7 +88,7 @@ compatible = "ralink,mt7620a-memc", "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 20>; + resets = <&sysc 20>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -93,8 +99,9 @@ compatible = "ralink,mt7620a-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0x500 0x100>; - resets = <&rstctrl 12>; - reset-names = "uart"; + clocks = <&sysc 7>; + + resets = <&sysc 12>; interrupt-parent = <&intc>; interrupts = <5>; @@ -108,7 +115,7 @@ compatible = "ralink,mt7620a-gpio", "ralink,rt2880-gpio"; reg = <0x600 0x34>; - resets = <&rstctrl 13>; + resets = <&sysc 13>; reset-names = "pio"; interrupt-parent = <&intc>; @@ -185,7 +192,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 8>; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -201,7 +210,9 @@ compatible = "mediatek,mt7620-i2s"; reg = <0xa00 0x100>; - resets = <&rstctrl 17>; + clocks = <&sysc 9>; + + resets = <&sysc 17>; reset-names = "i2s"; interrupt-parent = <&intc>; @@ -221,7 +232,9 @@ compatible = "ralink,mt7620a-spi", "ralink,rt2880-spi"; reg = <0xb00 0x40>; - resets = <&rstctrl 18>; + clocks = <&sysc 10>; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -237,7 +250,9 @@ compatible = "ralink,rt2880-spi"; reg = <0xb40 0x60>; - resets = <&rstctrl 18>; + clocks = <&sysc 11>; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -253,8 +268,9 @@ compatible = "ralink,mt7620a-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; - resets = <&rstctrl 19>; - reset-names = "uartl"; + clocks = <&sysc 12>; + + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <12>; @@ -269,7 +285,7 @@ compatible = "ralink,mt7620a-systick", "ralink,cevt-systick"; reg = <0xd00 0x10>; - resets = <&rstctrl 28>; + resets = <&sysc 28>; reset-names = "intc"; interrupt-parent = <&cpuintc>; @@ -280,7 +296,7 @@ compatible = "ralink,mt7620a-pcm"; reg = <0x2000 0x800>; - resets = <&rstctrl 11>; + resets = <&sysc 11>; reset-names = "pcm"; interrupt-parent = <&intc>; @@ -293,7 +309,7 @@ compatible = "ralink,mt7620a-gdma", "ralink,rt3883-gdma"; reg = <0x2800 0x800>; - resets = <&rstctrl 14>; + resets = <&sysc 14>; reset-names = "dma"; interrupt-parent = <&intc>; @@ -435,26 +451,14 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,mt7620a-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - usbphy: usbphy { compatible = "mediatek,mt7620-usbphy"; #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22 &rstctrl 25>; + /* usb phy reset is only controled by RSTCTRL bit 25 */ + resets = <&sysc 25>, <&sysc 22>; reset-names = "host", "device"; - - clocks = <&clkctrl 22 &clkctrl 25>; - clock-names = "host", "device"; }; ethernet: ethernet@10100000 { @@ -467,7 +471,7 @@ interrupt-parent = <&cpuintc>; interrupts = <5>; - resets = <&rstctrl 21 &rstctrl 23>; + resets = <&sysc 21>, <&sysc 23>; reset-names = "fe", "esw"; mediatek,switch = <&gsw>; @@ -498,7 +502,7 @@ compatible = "mediatek,mt7620-gsw"; reg = <0x10110000 0x8000>; - resets = <&rstctrl 23>; + resets = <&sysc 23>; reset-names = "esw"; interrupt-parent = <&intc>; @@ -566,12 +570,9 @@ #address-cells = <3>; #size-cells = <2>; - resets = <&rstctrl 26>; + resets = <&sysc 26>; reset-names = "pcie0"; - clocks = <&clkctrl 26>; - clock-names = "pcie0"; - interrupt-parent = <&cpuintc>; interrupts = <4>; @@ -604,6 +605,8 @@ compatible = "ralink,rt7620-wmac", "ralink,rt2880-wmac"; reg = <0x10180000 0x40000>; + clocks = <&sysc 13>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/dts/mt7620n.dtsi b/target/linux/ramips/dts/mt7620n.dtsi index 276bc13733..3299dea0f0 100644 --- a/target/linux/ramips/dts/mt7620n.dtsi +++ b/target/linux/ramips/dts/mt7620n.dtsi @@ -40,15 +40,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,mt7620a-sysc", "ralink,rt3050-sysc", "syscon"; + sysc: syscon@0 { + compatible = "ralink,mt7620-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,mt7620a-timer", "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 5>; + interrupt-parent = <&intc>; interrupts = <1>; }; @@ -57,7 +61,9 @@ compatible = "ralink,mt7620a-wdt", "ralink,rt2880-wdt"; reg = <0x120 0x10>; - resets = <&rstctrl 8>; + clocks = <&sysc 6>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -68,7 +74,7 @@ compatible = "ralink,mt7620a-intc", "ralink,rt2880-intc"; reg = <0x200 0x100>; - resets = <&rstctrl 19>; + resets = <&sysc 19>; reset-names = "intc"; interrupt-controller; @@ -82,7 +88,7 @@ compatible = "ralink,mt7620a-memc", "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 20>; + resets = <&sysc 20>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -93,7 +99,7 @@ compatible = "ralink,mt7620a-gpio", "ralink,rt2880-gpio"; reg = <0x600 0x34>; - resets = <&rstctrl 13>; + resets = <&sysc 13>; reset-names = "pio"; interrupt-parent = <&intc>; @@ -170,7 +176,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 8>; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -186,7 +194,9 @@ compatible = "ralink,mt7620a-spi", "ralink,rt2880-spi"; reg = <0xb00 0x40>; - resets = <&rstctrl 18>; + clocks = <&sysc 10>; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -202,7 +212,9 @@ compatible = "ralink,rt2880-spi"; reg = <0xb40 0x60>; - resets = <&rstctrl 18>; + clocks = <&sysc 11>; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -218,8 +230,9 @@ compatible = "ralink,mt7620a-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; - resets = <&rstctrl 19>; - reset-names = "uartl"; + clocks = <&sysc 12>; + + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <12>; @@ -234,7 +247,7 @@ compatible = "ralink,mt7620a-systick", "ralink,cevt-systick"; reg = <0xd00 0x10>; - resets = <&rstctrl 28>; + resets = <&sysc 28>; reset-names = "intc"; interrupt-parent = <&cpuintc>; @@ -286,26 +299,14 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,mt7620a-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - usbphy: usbphy { compatible = "mediatek,mt7620-usbphy"; #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22 &rstctrl 25>; + /* usb phy reset is only controled by RSTCTRL bit 25 */ + resets = <&sysc 25>, <&sysc 22>; reset-names = "host", "device"; - - clocks = <&clkctrl 22 &clkctrl 25>; - clock-names = "host", "device"; }; ethernet: ethernet@10100000 { @@ -318,7 +319,7 @@ interrupt-parent = <&cpuintc>; interrupts = <5>; - resets = <&rstctrl 21 &rstctrl 23>; + resets = <&sysc 21>, <&sysc 23>; reset-names = "fe", "esw"; mediatek,switch = <&gsw>; @@ -328,7 +329,7 @@ compatible = "mediatek,mt7620-gsw"; reg = <0x10110000 0x8000>; - resets = <&rstctrl 23>; + resets = <&sysc 23>; reset-names = "esw"; interrupt-parent = <&intc>; @@ -379,6 +380,8 @@ compatible = "ralink,rt7620-wmac", "ralink,rt2880-wmac"; reg = <0x10180000 0x40000>; + clocks = <&sysc 13>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/dts/mt7628an.dtsi b/target/linux/ramips/dts/mt7628an.dtsi index 8ef73dce80..74d2c980b5 100644 --- a/target/linux/ramips/dts/mt7628an.dtsi +++ b/target/linux/ramips/dts/mt7628an.dtsi @@ -38,16 +38,20 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,mt7620a-sysc", "syscon"; + sysc: syscon@0 { + compatible = "ralink,mt7628-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; watchdog: watchdog@100 { compatible = "ralink,mt7628an-wdt", "mediatek,mt7621-wdt"; reg = <0x100 0x30>; - resets = <&rstctrl 8>; + clocks = <&sysc 6>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -58,7 +62,7 @@ compatible = "ralink,mt7628an-intc", "ralink,rt2880-intc"; reg = <0x200 0x100>; - resets = <&rstctrl 9>; + resets = <&sysc 9>; reset-names = "intc"; interrupt-controller; @@ -76,7 +80,7 @@ compatible = "ralink,mt7620a-memc", "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 10>; + resets = <&sysc 10>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -101,7 +105,10 @@ compatible = "mediatek,mt7621-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 7>; + clock-names = "i2c"; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -117,7 +124,9 @@ compatible = "mediatek,mt7628-i2s"; reg = <0xa00 0x100>; - resets = <&rstctrl 17>; + clocks = <&sysc 8>; + + resets = <&sysc 17>; reset-names = "i2s"; interrupt-parent = <&intc>; @@ -137,7 +146,10 @@ compatible = "ralink,mt7621-spi"; reg = <0xb00 0x100>; - resets = <&rstctrl 18>; + clocks = <&sysc 9>; + clock-names = "spi"; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -149,7 +161,7 @@ status = "disabled"; }; - uartlite: uartlite@c00 { + uartlite: uart0@c00 { compatible = "ns16550a"; reg = <0xc00 0x100>; @@ -157,10 +169,9 @@ reg-io-width = <4>; no-loopback-test; - clock-frequency = <40000000>; + clocks = <&sysc 11>; - resets = <&rstctrl 12>; - reset-names = "uartl"; + resets = <&sysc 12>; interrupt-parent = <&intc>; interrupts = <20>; @@ -177,10 +188,9 @@ reg-io-width = <4>; no-loopback-test; - clock-frequency = <40000000>; + clocks = <&sysc 12>; - resets = <&rstctrl 19>; - reset-names = "uart1"; + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <21>; @@ -199,10 +209,9 @@ reg-io-width = <4>; no-loopback-test; - clock-frequency = <40000000>; + clocks = <&sysc 13>; - resets = <&rstctrl 20>; - reset-names = "uart2"; + resets = <&sysc 20>; interrupt-parent = <&intc>; interrupts = <22>; @@ -218,7 +227,7 @@ reg = <0x5000 0x1000>; #pwm-cells = <2>; - resets = <&rstctrl 31>; + resets = <&sysc 31>; reset-names = "pwm"; pinctrl-names = "default"; @@ -231,7 +240,7 @@ compatible = "ralink,mt7620a-pcm"; reg = <0x2000 0x800>; - resets = <&rstctrl 11>; + resets = <&sysc 11>; reset-names = "pcm"; interrupt-parent = <&intc>; @@ -244,7 +253,7 @@ compatible = "ralink,rt3883-gdma"; reg = <0x2800 0x800>; - resets = <&rstctrl 14>; + resets = <&sysc 14>; reset-names = "dma"; interrupt-parent = <&intc>; @@ -351,26 +360,15 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,mt7620a-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - usbphy: usbphy@10120000 { compatible = "mediatek,mt7628-usbphy", "mediatek,mt7620-usbphy"; reg = <0x10120000 0x1000>; #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22 &rstctrl 25>; + /* usb phy reset is only controled by RSTCTRL bit 22 */ + resets = <&sysc 22>, <&sysc 25>; reset-names = "host", "device"; - clocks = <&clkctrl 22 &clkctrl 25>; - clock-names = "host", "device"; }; sdhci: sdhci@10130000 { @@ -429,7 +427,7 @@ interrupt-parent = <&cpuintc>; interrupts = <5>; - resets = <&rstctrl 21>; + resets = <&sysc 21>; reset-names = "fe"; mediatek,switch = <&esw>; @@ -439,7 +437,7 @@ compatible = "mediatek,mt7628-esw", "ralink,rt3050-esw"; reg = <0x10110000 0x8000>; - resets = <&rstctrl 23 &rstctrl 24>; + resets = <&sysc 23>, <&sysc 24>; reset-names = "esw", "ephy"; interrupt-parent = <&intc>; @@ -457,10 +455,8 @@ interrupt-parent = <&cpuintc>; interrupts = <4>; - resets = <&rstctrl 26 &rstctrl 27>; - reset-names = "pcie0", "pcie1"; - clocks = <&clkctrl 26 &clkctrl 27>; - clock-names = "pcie0", "pcie1"; + resets = <&sysc 26>; + reset-names = "pcie0"; status = "disabled"; @@ -488,6 +484,8 @@ compatible = "mediatek,mt7628-wmac"; reg = <0x10300000 0x100000>; + clocks = <&sysc 14>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/dts/rt2880.dtsi b/target/linux/ramips/dts/rt2880.dtsi index 9dd8f3c6e3..998b49a277 100644 --- a/target/linux/ramips/dts/rt2880.dtsi +++ b/target/linux/ramips/dts/rt2880.dtsi @@ -38,15 +38,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,rt2880-sysc"; - reg = <0x000 0x100>; + sysc: syscon@0 { + compatible = "ralink,rt2880-sysc", "syscon"; + reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 3>; + interrupt-parent = <&intc>; interrupts = <1>; @@ -56,6 +60,8 @@ watchdog: watchdog@120 { compatible = "ralink,rt2880-wdt"; reg = <0x120 0x10>; + + clocks = <&sysc 4>; }; intc: intc@200 { @@ -124,7 +130,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 9>; + clocks = <&sysc 6>; + + resets = <&sysc 9>; reset-names = "i2c"; #address-cells = <1>; @@ -140,6 +148,8 @@ compatible = "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; + clocks = <&sysc 7>; + interrupt-parent = <&intc>; interrupts = <8>; @@ -182,16 +192,6 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - pci: pci@440000 { compatible = "ralink,rt288x-pci"; reg = <0x00440000 0x20000>; @@ -207,7 +207,9 @@ #address-cells = <1>; #size-cells = <0>; - resets = <&rstctrl 18>; + clocks = <&sysc 8>; + + resets = <&sysc 18>; reset-names = "fe"; interrupt-parent = <&cpuintc>; @@ -232,6 +234,8 @@ compatible = "ralink,rt2880-wmac"; reg = <0x480000 0x40000>; + clocks = <&sysc 9>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/dts/rt3050.dtsi b/target/linux/ramips/dts/rt3050.dtsi index 492474fdc4..eb508ed9d3 100644 --- a/target/linux/ramips/dts/rt3050.dtsi +++ b/target/linux/ramips/dts/rt3050.dtsi @@ -39,15 +39,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { + sysc: syscon@0 { compatible = "ralink,rt3050-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,rt3050-timer", "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 3>; + interrupt-parent = <&intc>; interrupts = <1>; }; @@ -56,7 +60,9 @@ compatible = "ralink,rt3050-wdt", "ralink,rt2880-wdt"; reg = <0x120 0x10>; - resets = <&rstctrl 8>; + clocks = <&sysc 4>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -67,7 +73,7 @@ compatible = "ralink,rt3050-intc", "ralink,rt2880-intc"; reg = <0x200 0x100>; - resets = <&rstctrl 19>; + resets = <&sysc 19>; reset-names = "intc"; interrupt-controller; @@ -81,7 +87,7 @@ compatible = "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 20>; + resets = <&sysc 20>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -92,8 +98,9 @@ compatible = "ralink,rt3050-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0x500 0x100>; - resets = <&rstctrl 12>; - reset-names = "uart"; + clocks = <&sysc 5>; + + resets = <&sysc 12>; interrupt-parent = <&intc>; interrupts = <5>; @@ -116,7 +123,7 @@ 20 24 28 2c 30 34 ]; - resets = <&rstctrl 13>; + resets = <&sysc 13>; reset-names = "pio"; interrupt-parent = <&intc>; @@ -159,7 +166,7 @@ compatible = "ralink,rt305x-gdma"; reg = <0x700 0x100>; - resets = <&rstctrl 14>; + resets = <&sysc 14>; reset-names = "dma"; interrupt-parent = <&intc>; @@ -176,7 +183,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 6>; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -192,7 +201,9 @@ compatible = "ralink,rt3050-i2s"; reg = <0xa00 0x100>; - resets = <&rstctrl 17>; + clocks = <&sysc 7>; + + resets = <&sysc 17>; reset-names = "i2s"; interrupt-parent = <&intc>; @@ -210,9 +221,11 @@ compatible = "ralink,rt3050-spi", "ralink,rt2880-spi"; reg = <0xb00 0x100>; - resets = <&rstctrl 18>; + resets = <&sysc 18>; reset-names = "spi"; + clocks = <&sysc 8>; + #address-cells = <1>; #size-cells = <0>; @@ -226,8 +239,9 @@ compatible = "ralink,rt3050-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; - resets = <&rstctrl 19>; - reset-names = "uartl"; + clocks = <&sysc 10>; + + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <12>; @@ -281,32 +295,22 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,rt3050-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - usbphy: usbphy { compatible = "ralink,rt3050-usbphy"; #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22>; + resets = <&sysc 22>; reset-names = "host"; - clocks = <&clkctrl 18>; - clock-names = "host"; }; ethernet: ethernet@10100000 { compatible = "ralink,rt3050-eth"; reg = <0x10100000 0x10000>; - resets = <&rstctrl 21>; + clocks = <&sysc 11>; + + resets = <&sysc 21>; reset-names = "fe"; interrupt-parent = <&cpuintc>; @@ -319,7 +323,7 @@ compatible = "ralink,rt3050-esw"; reg = <0x10110000 0x8000>; - resets = <&rstctrl 23 &rstctrl 24>; + resets = <&sysc 23>, <&sysc 24>; reset-names = "esw", "ephy"; interrupt-parent = <&intc>; @@ -330,6 +334,8 @@ compatible = "ralink,rt3050-wmac", "ralink,rt2880-wmac"; reg = <0x10180000 0x40000>; + clocks = <&sysc 12>; + interrupt-parent = <&cpuintc>; interrupts = <6>; @@ -345,7 +351,7 @@ interrupt-parent = <&intc>; interrupts = <18>; - resets = <&rstctrl 22>; + resets = <&sysc 22>; reset-names = "otg"; status = "disabled"; diff --git a/target/linux/ramips/dts/rt3352.dtsi b/target/linux/ramips/dts/rt3352.dtsi index 608222cb5c..df07776723 100644 --- a/target/linux/ramips/dts/rt3352.dtsi +++ b/target/linux/ramips/dts/rt3352.dtsi @@ -40,15 +40,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,rt3352-sysc", "ralink,rt3050-sysc", "syscon"; + sysc: syscon@0 { + compatible = "ralink,rt3352-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,rt3352-timer", "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 4>; + interrupt-parent = <&intc>; interrupts = <1>; }; @@ -57,7 +61,9 @@ compatible = "ralink,rt3352-wdt", "ralink,rt2880-wdt"; reg = <0x120 0x10>; - resets = <&rstctrl 8>; + clocks = <&sysc 5>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -79,7 +85,7 @@ compatible = "ralink,rt3352-memc", "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 20>; + resets = <&sysc 20>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -90,8 +96,9 @@ compatible = "ralink,rt3352-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0x500 0x100>; - resets = <&rstctrl 12>; - reset-names = "uart"; + clocks = <&sysc 6>; + + resets = <&sysc 12>; interrupt-parent = <&intc>; interrupts = <5>; @@ -113,7 +120,7 @@ ralink,register-map = [ 00 04 08 0c 20 24 28 2c 30 34 ]; - resets = <&rstctrl 13>; + resets = <&sysc 13>; reset-names = "pio"; interrupt-parent = <&intc>; @@ -156,7 +163,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 7>; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -172,7 +181,9 @@ compatible = "ralink,rt3352-i2s"; reg = <0xa00 0x100>; - resets = <&rstctrl 17>; + clocks = <&sysc 8>; + + resets = <&sysc 17>; reset-names = "i2s"; interrupt-parent = <&intc>; @@ -194,7 +205,9 @@ #address-cells = <1>; #size-cells = <0>; - resets = <&rstctrl 18>; + clocks = <&sysc 9>; + + resets = <&sysc 18>; reset-names = "spi"; pinctrl-names = "default"; @@ -209,7 +222,7 @@ #address-cells = <1>; #size-cells = <0>; - resets = <&rstctrl 18>; + resets = <&sysc 18>; reset-names = "spi"; pinctrl-names = "default"; @@ -222,8 +235,9 @@ compatible = "ralink,rt3352-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; - resets = <&rstctrl 19>; - reset-names = "uartl"; + clocks = <&sysc 11>; + + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <12>; @@ -238,7 +252,7 @@ compatible = "ralink,rt3883-gdma"; reg = <0x2800 0x800>; - resets = <&rstctrl 14>; + resets = <&sysc 14>; reset-names = "dma"; interrupt-parent = <&intc>; @@ -304,21 +318,13 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,rt3352-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - ethernet: ethernet@10100000 { compatible = "ralink,rt3352-eth", "ralink,rt3050-eth"; reg = <0x10100000 0x10000>; - resets = <&rstctrl 21>; + clocks = <&sysc 12>; + + resets = <&sysc 21>; reset-names = "fe"; interrupt-parent = <&cpuintc>; @@ -331,7 +337,7 @@ compatible = "ralink,rt3352-esw", "ralink,rt3050-esw"; reg = <0x10110000 0x8000>; - resets = <&rstctrl 23 &rstctrl 24>; + resets = <&sysc 23>, <&sysc 24>; reset-names = "esw", "ephy"; interrupt-parent = <&intc>; @@ -343,16 +349,16 @@ #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22 &rstctrl 25>; + resets = <&sysc 22>, <&sysc 25>; reset-names = "host", "device"; - clocks = <&clkctrl 18 &clkctrl 20>; - clock-names = "host", "device"; }; wmac: wmac@10180000 { compatible = "ralink,rt3352-wmac", "ralink,rt2880-wmac"; reg = <0x10180000 0x40000>; + clocks = <&sysc 13>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/dts/rt3883.dtsi b/target/linux/ramips/dts/rt3883.dtsi index 158640bf92..d490d700d6 100644 --- a/target/linux/ramips/dts/rt3883.dtsi +++ b/target/linux/ramips/dts/rt3883.dtsi @@ -40,15 +40,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,rt3883-sysc", "ralink,rt3050-sysc", "syscon"; + sysc: syscon@0 { + compatible = "ralink,rt3883-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,rt3883-timer", "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 3>; + interrupt-parent = <&intc>; interrupts = <1>; }; @@ -57,7 +61,9 @@ compatible = "ralink,rt3883-wdt", "ralink,rt2880-wdt"; reg = <0x120 0x10>; - resets = <&rstctrl 8>; + clocks = <&sysc 4>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -68,7 +74,7 @@ compatible = "ralink,rt3883-intc", "ralink,rt2880-intc"; reg = <0x200 0x100>; - resets = <&rstctrl 19>; + resets = <&sysc 19>; reset-names = "intc"; interrupt-controller; @@ -82,7 +88,7 @@ compatible = "ralink,rt3883-memc", "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 20>; + resets = <&sysc 20>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -93,8 +99,9 @@ compatible = "ralink,rt3883-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0x500 0x100>; - resets = <&rstctrl 12>; - reset-names = "uart"; + clocks = <&sysc 5>; + + resets = <&sysc 12>; interrupt-parent = <&intc>; interrupts = <5>; @@ -108,7 +115,7 @@ compatible = "ralink,rt3883-gpio", "ralink,rt2880-gpio"; reg = <0x600 0x34>; - resets = <&rstctrl 13>; + resets = <&sysc 13>; reset-names = "pio"; interrupt-parent = <&intc>; @@ -176,7 +183,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 6>; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -192,7 +201,9 @@ compatible = "ralink,rt3883-i2s"; reg = <0xa00 0x100>; - resets = <&rstctrl 17>; + clocks = <&sysc 7>; + + resets = <&sysc 17>; reset-names = "i2s"; interrupt-parent = <&intc>; @@ -214,7 +225,9 @@ #address-cells = <1>; #size-cells = <0>; - resets = <&rstctrl 18>; + clocks = <&sysc 8>; + + resets = <&sysc 18>; reset-names = "spi"; pinctrl-names = "default"; @@ -229,7 +242,9 @@ #address-cells = <1>; #size-cells = <0>; - resets = <&rstctrl 18>; + clocks = <&sysc 9>; + + resets = <&sysc 18>; reset-names = "spi"; pinctrl-names = "default"; @@ -242,8 +257,9 @@ compatible = "ralink,rt3883-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; - resets = <&rstctrl 19>; - reset-names = "uartl"; + clocks = <&sysc 10>; + + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <12>; @@ -258,7 +274,7 @@ compatible = "ralink,rt3883-gdma"; reg = <0x2800 0x800>; - resets = <&rstctrl 14>; + resets = <&sysc 14>; reset-names = "dma"; interrupt-parent = <&intc>; @@ -323,7 +339,9 @@ #size-cells = <0>; reg = <0x10100000 0x10000>; - resets = <&rstctrl 21>; + clocks = <&sysc 11>; + + resets = <&sysc 21>; reset-names = "fe"; interrupt-parent = <&cpuintc>; @@ -342,16 +360,6 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,rt3883-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - pci: pci@10140000 { compatible = "ralink,rt3883-pci"; reg = <0x10140000 0x20000>; @@ -441,16 +449,16 @@ #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22 &rstctrl 25>; + resets = <&sysc 22>, <&sysc 25>; reset-names = "host", "device"; - clocks = <&clkctrl 22 &clkctrl 25>; - clock-names = "host", "device"; }; wmac: wmac@10180000 { compatible = "ralink,rt3883-wmac", "ralink,rt2880-wmac"; reg = <0x10180000 0x40000>; + clocks = <&sysc 12>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/dts/rt5350.dtsi b/target/linux/ramips/dts/rt5350.dtsi index 090e755743..1286dec9d8 100644 --- a/target/linux/ramips/dts/rt5350.dtsi +++ b/target/linux/ramips/dts/rt5350.dtsi @@ -40,15 +40,19 @@ #address-cells = <1>; #size-cells = <1>; - sysc: sysc@0 { - compatible = "ralink,rt5350-sysc", "ralink,rt3050-sysc", "syscon"; + sysc: syscon@0 { + compatible = "ralink,rt5350-sysc", "syscon"; reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; }; timer: timer@100 { compatible = "ralink,rt5350-timer", "ralink,rt2880-timer"; reg = <0x100 0x20>; + clocks = <&sysc 4>; + interrupt-parent = <&intc>; interrupts = <1>; }; @@ -57,7 +61,9 @@ compatible = "ralink,rt5350-wdt", "ralink,rt2880-wdt"; reg = <0x120 0x10>; - resets = <&rstctrl 8>; + clocks = <&sysc 5>; + + resets = <&sysc 8>; reset-names = "wdt"; interrupt-parent = <&intc>; @@ -68,7 +74,7 @@ compatible = "ralink,rt5350-intc", "ralink,rt2880-intc"; reg = <0x200 0x100>; - resets = <&rstctrl 19>; + resets = <&sysc 19>; reset-names = "intc"; interrupt-controller; @@ -82,7 +88,7 @@ compatible = "ralink,rt5350-memc", "ralink,rt3050-memc"; reg = <0x300 0x100>; - resets = <&rstctrl 20>; + resets = <&sysc 20>; reset-names = "mc"; interrupt-parent = <&intc>; @@ -93,8 +99,9 @@ compatible = "ralink,rt5350-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0x500 0x100>; - resets = <&rstctrl 12>; - reset-names = "uart"; + clocks = <&sysc 6>; + + resets = <&sysc 12>; interrupt-parent = <&intc>; interrupts = <5>; @@ -108,7 +115,7 @@ compatible = "ralink,rt5350-gpio", "ralink,rt2880-gpio"; reg = <0x600 0x34>; - resets = <&rstctrl 13>; + resets = <&sysc 13>; reset-names = "pio"; interrupt-parent = <&intc>; @@ -147,7 +154,9 @@ compatible = "ralink,rt2880-i2c"; reg = <0x900 0x100>; - resets = <&rstctrl 16>; + clocks = <&sysc 7>; + + resets = <&sysc 16>; reset-names = "i2c"; #address-cells = <1>; @@ -163,7 +172,9 @@ compatible = "ralink,rt3352-i2s"; reg = <0xa00 0x100>; - resets = <&rstctrl 17>; + clocks = <&sysc 8>; + + resets = <&sysc 17>; reset-names = "i2s"; interrupt-parent = <&intc>; @@ -183,7 +194,9 @@ compatible = "ralink,rt5350-spi", "ralink,rt2880-spi"; reg = <0xb00 0x40>; - resets = <&rstctrl 18>; + clocks = <&sysc 9>; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -199,7 +212,9 @@ compatible = "ralink,rt5350-spi", "ralink,rt2880-spi"; reg = <0xb40 0x60>; - resets = <&rstctrl 18>; + clocks = <&sysc 10>; + + resets = <&sysc 18>; reset-names = "spi"; #address-cells = <1>; @@ -215,8 +230,9 @@ compatible = "ralink,rt5350-uart", "ralink,rt2880-uart", "ns16550a"; reg = <0xc00 0x100>; - resets = <&rstctrl 19>; - reset-names = "uartl"; + clocks = <&sysc 11>; + + resets = <&sysc 19>; interrupt-parent = <&intc>; interrupts = <12>; @@ -239,7 +255,7 @@ compatible = "ralink,rt5350-pcm"; reg = <0x2000 0x800>; - resets = <&rstctrl 11>; + resets = <&sysc 11>; reset-names = "pcm"; interrupt-parent = <&intc>; @@ -252,7 +268,7 @@ compatible = "ralink,rt3883-gdma"; reg = <0x2800 0x800>; - resets = <&rstctrl 14>; + resets = <&sysc 14>; reset-names = "dma"; interrupt-parent = <&intc>; @@ -318,32 +334,22 @@ }; }; - rstctrl: rstctrl { - compatible = "ralink,rt5350-reset", "ralink,rt2880-reset"; - #reset-cells = <1>; - }; - - clkctrl: clkctrl { - compatible = "ralink,rt2880-clock"; - #clock-cells = <1>; - }; - usbphy: usbphy { compatible = "ralink,rt3352-usbphy"; #phy-cells = <0>; ralink,sysctl = <&sysc>; - resets = <&rstctrl 22 &rstctrl 25>; + resets = <&sysc 22>, <&sysc 25>; reset-names = "host", "device"; - clocks = <&clkctrl 18>; - clock-names = "host"; }; ethernet: ethernet@10100000 { compatible = "ralink,rt5350-eth"; reg = <0x10100000 0x10000>; - resets = <&rstctrl 21>; + clocks = <&sysc 12>; + + resets = <&sysc 21>; reset-names = "fe"; interrupt-parent = <&cpuintc>; @@ -356,7 +362,7 @@ compatible = "ralink,rt5350-esw", "ralink,rt3050-esw"; reg = <0x10110000 0x8000>; - resets = <&rstctrl 23 &rstctrl 24>; + resets = <&sysc 23>, <&sysc 24>; reset-names = "esw", "ephy"; interrupt-parent = <&intc>; @@ -367,6 +373,8 @@ compatible = "ralink,rt5350-wmac", "ralink,rt2880-wmac"; reg = <0x10180000 0x40000>; + clocks = <&sysc 13>; + interrupt-parent = <&cpuintc>; interrupts = <6>; diff --git a/target/linux/ramips/mt7620/config-5.15 b/target/linux/ramips/mt7620/config-5.15 index fdca30fecb..641b93e582 100644 --- a/target/linux/ramips/mt7620/config-5.15 +++ b/target/linux/ramips/mt7620/config-5.15 @@ -10,6 +10,7 @@ CONFIG_CEVT_R4K=y CONFIG_CEVT_SYSTICK_QUIRK=y CONFIG_CLKEVT_RT3352=y CONFIG_CLKSRC_MMIO=y +CONFIG_CLK_MTMIPS=y CONFIG_CLONE_BACKWARDS=y CONFIG_CMDLINE="rootfstype=squashfs,jffs2" CONFIG_CMDLINE_BOOL=y diff --git a/target/linux/ramips/mt76x8/config-5.15 b/target/linux/ramips/mt76x8/config-5.15 index 7248aa6633..bd1d3688b8 100644 --- a/target/linux/ramips/mt76x8/config-5.15 +++ b/target/linux/ramips/mt76x8/config-5.15 @@ -10,6 +10,7 @@ CONFIG_CEVT_R4K=y CONFIG_CEVT_SYSTICK_QUIRK=y CONFIG_CLKEVT_RT3352=y CONFIG_CLKSRC_MMIO=y +CONFIG_CLK_MTMIPS=y CONFIG_CLONE_BACKWARDS=y CONFIG_CMDLINE="rootfstype=squashfs,jffs2" CONFIG_CMDLINE_BOOL=y diff --git a/target/linux/ramips/patches-5.15/005-v6.5-01-dt-bindings-clock-add-mtmips-SoCs-system-controller.patch b/target/linux/ramips/patches-5.15/005-v6.5-01-dt-bindings-clock-add-mtmips-SoCs-system-controller.patch new file mode 100644 index 0000000000..94784f7885 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-01-dt-bindings-clock-add-mtmips-SoCs-system-controller.patch @@ -0,0 +1,86 @@ +From 612616e6381929e7f9e303f8b8ad3655cc101516 Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:33 +0200 +Subject: [PATCH 1/9] dt-bindings: clock: add mtmips SoCs system controller + +Adds device tree binding documentation for system controller node present +in Mediatek MIPS and Ralink SOCs. This node is a clock and reset provider +for the rest of the world. This covers RT2880, RT3050, RT3052, RT3350, +RT3883, RT5350, MT7620, MT7628 and MT7688 SoCs. + +Reviewed-by: Rob Herring +Acked-by: Stephen Boyd +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + .../bindings/clock/mediatek,mtmips-sysc.yaml | 64 ++++++++++++++++++++++ + 1 file changed, 64 insertions(+) + create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml + +--- /dev/null ++++ b/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml +@@ -0,0 +1,64 @@ ++# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/clock/mediatek,mtmips-sysc.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: MTMIPS SoCs System Controller ++ ++maintainers: ++ - Sergio Paracuellos ++ ++description: | ++ MediaTek MIPS and Ralink SoCs provides a system controller to allow ++ to access to system control registers. These registers include clock ++ and reset related ones so this node is both clock and reset provider ++ for the rest of the world. ++ ++ These SoCs have an XTAL from where the cpu clock is ++ provided as well as derived clocks for the bus and the peripherals. ++ ++properties: ++ compatible: ++ items: ++ - enum: ++ - ralink,mt7620-sysc ++ - ralink,mt7628-sysc ++ - ralink,mt7688-sysc ++ - ralink,rt2880-sysc ++ - ralink,rt3050-sysc ++ - ralink,rt3052-sysc ++ - ralink,rt3352-sysc ++ - ralink,rt3883-sysc ++ - ralink,rt5350-sysc ++ - const: syscon ++ ++ reg: ++ maxItems: 1 ++ ++ '#clock-cells': ++ description: ++ The first cell indicates the clock number. ++ const: 1 ++ ++ '#reset-cells': ++ description: ++ The first cell indicates the reset bit within the register. ++ const: 1 ++ ++required: ++ - compatible ++ - reg ++ - '#clock-cells' ++ - '#reset-cells' ++ ++additionalProperties: false ++ ++examples: ++ - | ++ syscon@0 { ++ compatible = "ralink,rt5350-sysc", "syscon"; ++ reg = <0x0 0x100>; ++ #clock-cells = <1>; ++ #reset-cells = <1>; ++ }; diff --git a/target/linux/ramips/patches-5.15/005-v6.5-02-clk-ralink-add-clock-and-reset-driver-for-MTMIPS-SoC.patch b/target/linux/ramips/patches-5.15/005-v6.5-02-clk-ralink-add-clock-and-reset-driver-for-MTMIPS-SoC.patch new file mode 100644 index 0000000000..cef39978e0 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-02-clk-ralink-add-clock-and-reset-driver-for-MTMIPS-SoC.patch @@ -0,0 +1,1221 @@ +From 6f3b15586eef736831abe6a14f2a6906bc0dc074 Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:34 +0200 +Subject: [PATCH 2/9] clk: ralink: add clock and reset driver for MTMIPS SoCs + +Until now, clock related code for old ralink SoCs was based in fixed clocks +using 'clk_register_fixed_rate' and 'clkdev_create' directly doing in code +and not using device tree at all for their definition. Including this driver +is an effort to be able to define proper clocks using device tree and also +cleaning all the clock and reset related code from 'arch/mips/ralink' dir. +This clock and reset driver covers all the ralink SoCs but MT7621 which is +the newest and provides gating and some differences that make it different +from its predecesors. It has its own driver since some time ago. The ralink +SoCs we are taking about are RT2880, RT3050, RT3052, RT3350, RT3352, RT3883, +RT5350, MT7620, MT7628 and MT7688. Mostly the code in this new driver has +been extracted from 'arch/mips/ralink' and cleanly put using kernel clock +driver APIs. The clock plans for this SoCs only talks about relation between +CPU frequency and BUS frequency. This relation is different depending on the +particular SoC. CPU clock is derived from XTAL frequencies. + +Depending on the SoC we have the following frequencies: +* RT2880 SoC: + - XTAL: 40 MHz. + - CPU: 250, 266, 280 or 300 MHz. + - BUS: CPU / 2 MHz. +* RT3050, RT3052, RT3350: + - XTAL: 40 MHz. + - CPU: 320 or 384 MHz. + - BUS: CPU / 3 MHz. +* RT3352: + - XTAL: 40 MHz. + - CPU: 384 or 400 MHz. + - BUS: CPU / 3 MHz. + - PERIPH: 40 MHz. +* RT3383: + - XTAL: 40 MHz. + - CPU: 250, 384, 480 or 500 MHz. + - BUS: Depends on RAM Type and CPU: + + RAM DDR2: 125. ELSE 83 MHz. + + RAM DDR2: 128. ELSE 96 MHz. + + RAM DDR2: 160. ELSE 120 MHz. + + RAM DDR2: 166. ELSE 125 MHz. +* RT5350: + - XTAL: 40 MHz. + - CPU: 300, 320 or 360 MHz. + - BUS: CPU / 3, CPU / 4, CPU / 3 MHz. + - PERIPH: 40 MHz. +* MT7628 and MT7688: + - XTAL: 20 MHz or 40 MHz. + - CPU: 575 or 580 MHz. + - BUS: CPU / 3. + - PCMI2S: 480 MHz. + - PERIPH: 40 MHz. +* MT7620: + - XTAL: 20 MHz or 40 MHz. + - PLL: XTAL, 480, 600 MHz. + - CPU: depends on PLL and some mult and dividers. + - BUS: depends on PLL and some mult and dividers. + - PERIPH: 40 or XTAL MHz. + +MT7620 is a bit more complex deriving CPU clock from a PLL and an bunch of +register reads and predividers. To derive CPU and BUS frequencies in the +MT7620 SoC 'mt7620_calc_rate()' helper is used. + +In the case XTAL can have different frequencies and we need a different +clock frequency for peripherals 'periph' clock in introduced. + +The rest of the peripherals present in the SoC just follow their parent +frequencies. + +With this information the clk driver will provide all the clock and reset +functionality from a set of hardcoded clocks allowing to define a nice +device tree without fixed clocks. + +Acked-by: Stephen Boyd +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + drivers/clk/ralink/Kconfig | 7 + + drivers/clk/ralink/Makefile | 1 + + drivers/clk/ralink/clk-mtmips.c | 1115 +++++++++++++++++++++++++++++++++++++++ + 3 files changed, 1123 insertions(+) + create mode 100644 drivers/clk/ralink/clk-mtmips.c + +--- a/drivers/clk/ralink/Kconfig ++++ b/drivers/clk/ralink/Kconfig +@@ -9,3 +9,10 @@ config CLK_MT7621 + select MFD_SYSCON + help + This driver supports MediaTek MT7621 basic clocks. ++ ++config CLK_MTMIPS ++ bool "Clock driver for MTMIPS SoCs" ++ depends on SOC_RT305X || SOC_RT288X || SOC_RT3883 || SOC_MT7620 || COMPILE_TEST ++ select MFD_SYSCON ++ help ++ This driver supports MTMIPS basic clocks. +--- a/drivers/clk/ralink/Makefile ++++ b/drivers/clk/ralink/Makefile +@@ -1,2 +1,3 @@ + # SPDX-License-Identifier: GPL-2.0 + obj-$(CONFIG_CLK_MT7621) += clk-mt7621.o ++obj-$(CONFIG_CLK_MTMIPS) += clk-mtmips.o +--- /dev/null ++++ b/drivers/clk/ralink/clk-mtmips.c +@@ -0,0 +1,1115 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * MTMIPS SoCs Clock Driver ++ * Author: Sergio Paracuellos ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/* Configuration registers */ ++#define SYSC_REG_SYSTEM_CONFIG 0x10 ++#define SYSC_REG_CLKCFG0 0x2c ++#define SYSC_REG_RESET_CTRL 0x34 ++#define SYSC_REG_CPU_SYS_CLKCFG 0x3c ++#define SYSC_REG_CPLL_CONFIG0 0x54 ++#define SYSC_REG_CPLL_CONFIG1 0x58 ++ ++/* RT2880 SoC */ ++#define RT2880_CONFIG_CPUCLK_SHIFT 20 ++#define RT2880_CONFIG_CPUCLK_MASK 0x3 ++#define RT2880_CONFIG_CPUCLK_250 0x0 ++#define RT2880_CONFIG_CPUCLK_266 0x1 ++#define RT2880_CONFIG_CPUCLK_280 0x2 ++#define RT2880_CONFIG_CPUCLK_300 0x3 ++ ++/* RT305X SoC */ ++#define RT305X_SYSCFG_CPUCLK_SHIFT 18 ++#define RT305X_SYSCFG_CPUCLK_MASK 0x1 ++#define RT305X_SYSCFG_CPUCLK_LOW 0x0 ++#define RT305X_SYSCFG_CPUCLK_HIGH 0x1 ++ ++/* RT3352 SoC */ ++#define RT3352_SYSCFG0_CPUCLK_SHIFT 8 ++#define RT3352_SYSCFG0_CPUCLK_MASK 0x1 ++#define RT3352_SYSCFG0_CPUCLK_LOW 0x0 ++#define RT3352_SYSCFG0_CPUCLK_HIGH 0x1 ++ ++/* RT3383 SoC */ ++#define RT3883_SYSCFG0_DRAM_TYPE_DDR2 BIT(17) ++#define RT3883_SYSCFG0_CPUCLK_SHIFT 8 ++#define RT3883_SYSCFG0_CPUCLK_MASK 0x3 ++#define RT3883_SYSCFG0_CPUCLK_250 0x0 ++#define RT3883_SYSCFG0_CPUCLK_384 0x1 ++#define RT3883_SYSCFG0_CPUCLK_480 0x2 ++#define RT3883_SYSCFG0_CPUCLK_500 0x3 ++ ++/* RT5350 SoC */ ++#define RT5350_CLKCFG0_XTAL_SEL BIT(20) ++#define RT5350_SYSCFG0_CPUCLK_SHIFT 8 ++#define RT5350_SYSCFG0_CPUCLK_MASK 0x3 ++#define RT5350_SYSCFG0_CPUCLK_360 0x0 ++#define RT5350_SYSCFG0_CPUCLK_320 0x2 ++#define RT5350_SYSCFG0_CPUCLK_300 0x3 ++ ++/* MT7620 and MT76x8 SoCs */ ++#define MT7620_XTAL_FREQ_SEL BIT(6) ++#define CPLL_CFG0_SW_CFG BIT(31) ++#define CPLL_CFG0_PLL_MULT_RATIO_SHIFT 16 ++#define CPLL_CFG0_PLL_MULT_RATIO_MASK 0x7 ++#define CPLL_CFG0_LC_CURFCK BIT(15) ++#define CPLL_CFG0_BYPASS_REF_CLK BIT(14) ++#define CPLL_CFG0_PLL_DIV_RATIO_SHIFT 10 ++#define CPLL_CFG0_PLL_DIV_RATIO_MASK 0x3 ++#define CPLL_CFG1_CPU_AUX1 BIT(25) ++#define CPLL_CFG1_CPU_AUX0 BIT(24) ++#define CLKCFG0_PERI_CLK_SEL BIT(4) ++#define CPU_SYS_CLKCFG_OCP_RATIO_SHIFT 16 ++#define CPU_SYS_CLKCFG_OCP_RATIO_MASK 0xf ++#define CPU_SYS_CLKCFG_OCP_RATIO_1 0 /* 1:1 (Reserved) */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_1_5 1 /* 1:1.5 (Reserved) */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_2 2 /* 1:2 */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_2_5 3 /* 1:2.5 (Reserved) */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_3 4 /* 1:3 */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_3_5 5 /* 1:3.5 (Reserved) */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_4 6 /* 1:4 */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_5 7 /* 1:5 */ ++#define CPU_SYS_CLKCFG_OCP_RATIO_10 8 /* 1:10 */ ++#define CPU_SYS_CLKCFG_CPU_FDIV_SHIFT 8 ++#define CPU_SYS_CLKCFG_CPU_FDIV_MASK 0x1f ++#define CPU_SYS_CLKCFG_CPU_FFRAC_SHIFT 0 ++#define CPU_SYS_CLKCFG_CPU_FFRAC_MASK 0x1f ++ ++/* clock scaling */ ++#define CLKCFG_FDIV_MASK 0x1f00 ++#define CLKCFG_FDIV_USB_VAL 0x0300 ++#define CLKCFG_FFRAC_MASK 0x001f ++#define CLKCFG_FFRAC_USB_VAL 0x0003 ++ ++struct mtmips_clk; ++struct mtmips_clk_fixed; ++struct mtmips_clk_factor; ++ ++struct mtmips_clk_data { ++ struct mtmips_clk *clk_base; ++ size_t num_clk_base; ++ struct mtmips_clk_fixed *clk_fixed; ++ size_t num_clk_fixed; ++ struct mtmips_clk_factor *clk_factor; ++ size_t num_clk_factor; ++ struct mtmips_clk *clk_periph; ++ size_t num_clk_periph; ++}; ++ ++struct mtmips_clk_priv { ++ struct regmap *sysc; ++ const struct mtmips_clk_data *data; ++}; ++ ++struct mtmips_clk { ++ struct clk_hw hw; ++ struct mtmips_clk_priv *priv; ++}; ++ ++struct mtmips_clk_fixed { ++ const char *name; ++ const char *parent; ++ unsigned long rate; ++ struct clk_hw *hw; ++}; ++ ++struct mtmips_clk_factor { ++ const char *name; ++ const char *parent; ++ int mult; ++ int div; ++ unsigned long flags; ++ struct clk_hw *hw; ++}; ++ ++static unsigned long mtmips_pherip_clk_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ return parent_rate; ++} ++ ++static const struct clk_ops mtmips_periph_clk_ops = { ++ .recalc_rate = mtmips_pherip_clk_rate, ++}; ++ ++#define CLK_PERIPH(_name, _parent) { \ ++ .init = &(const struct clk_init_data) { \ ++ .name = _name, \ ++ .ops = &mtmips_periph_clk_ops, \ ++ .parent_data = &(const struct clk_parent_data) {\ ++ .name = _parent, \ ++ .fw_name = _parent \ ++ }, \ ++ .num_parents = 1, \ ++ /* \ ++ * There are drivers for these SoCs that are \ ++ * older than clock driver and are not prepared \ ++ * for the clock. We don't want the kernel to \ ++ * disable anything so we add CLK_IS_CRITICAL \ ++ * flag here. \ ++ */ \ ++ .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL \ ++ }, \ ++} ++ ++static struct mtmips_clk rt2880_pherip_clks[] = { ++ { CLK_PERIPH("300100.timer", "bus") }, ++ { CLK_PERIPH("300120.watchdog", "bus") }, ++ { CLK_PERIPH("300500.uart", "bus") }, ++ { CLK_PERIPH("300900.i2c", "bus") }, ++ { CLK_PERIPH("300c00.uartlite", "bus") }, ++ { CLK_PERIPH("400000.ethernet", "bus") }, ++ { CLK_PERIPH("480000.wmac", "xtal") } ++}; ++ ++static struct mtmips_clk rt305x_pherip_clks[] = { ++ { CLK_PERIPH("10000100.timer", "bus") }, ++ { CLK_PERIPH("10000120.watchdog", "bus") }, ++ { CLK_PERIPH("10000500.uart", "bus") }, ++ { CLK_PERIPH("10000900.i2c", "bus") }, ++ { CLK_PERIPH("10000a00.i2s", "bus") }, ++ { CLK_PERIPH("10000b00.spi", "bus") }, ++ { CLK_PERIPH("10000b40.spi", "bus") }, ++ { CLK_PERIPH("10000c00.uartlite", "bus") }, ++ { CLK_PERIPH("10100000.ethernet", "bus") }, ++ { CLK_PERIPH("10180000.wmac", "xtal") } ++}; ++ ++static struct mtmips_clk rt5350_pherip_clks[] = { ++ { CLK_PERIPH("10000100.timer", "bus") }, ++ { CLK_PERIPH("10000120.watchdog", "bus") }, ++ { CLK_PERIPH("10000500.uart", "periph") }, ++ { CLK_PERIPH("10000900.i2c", "periph") }, ++ { CLK_PERIPH("10000a00.i2s", "periph") }, ++ { CLK_PERIPH("10000b00.spi", "bus") }, ++ { CLK_PERIPH("10000b40.spi", "bus") }, ++ { CLK_PERIPH("10000c00.uartlite", "periph") }, ++ { CLK_PERIPH("10100000.ethernet", "bus") }, ++ { CLK_PERIPH("10180000.wmac", "xtal") } ++}; ++ ++static struct mtmips_clk mt7620_pherip_clks[] = { ++ { CLK_PERIPH("10000100.timer", "periph") }, ++ { CLK_PERIPH("10000120.watchdog", "periph") }, ++ { CLK_PERIPH("10000500.uart", "periph") }, ++ { CLK_PERIPH("10000900.i2c", "periph") }, ++ { CLK_PERIPH("10000a00.i2s", "periph") }, ++ { CLK_PERIPH("10000b00.spi", "bus") }, ++ { CLK_PERIPH("10000b40.spi", "bus") }, ++ { CLK_PERIPH("10000c00.uartlite", "periph") }, ++ { CLK_PERIPH("10180000.wmac", "xtal") } ++}; ++ ++static struct mtmips_clk mt76x8_pherip_clks[] = { ++ { CLK_PERIPH("10000100.timer", "periph") }, ++ { CLK_PERIPH("10000120.watchdog", "periph") }, ++ { CLK_PERIPH("10000900.i2c", "periph") }, ++ { CLK_PERIPH("10000a00.i2s", "pcmi2s") }, ++ { CLK_PERIPH("10000b00.spi", "bus") }, ++ { CLK_PERIPH("10000b40.spi", "bus") }, ++ { CLK_PERIPH("10000c00.uart0", "periph") }, ++ { CLK_PERIPH("10000d00.uart1", "periph") }, ++ { CLK_PERIPH("10000e00.uart2", "periph") }, ++ { CLK_PERIPH("10300000.wmac", "xtal") } ++}; ++ ++static int mtmips_register_pherip_clocks(struct device_node *np, ++ struct clk_hw_onecell_data *clk_data, ++ struct mtmips_clk_priv *priv) ++{ ++ struct clk_hw **hws = clk_data->hws; ++ struct mtmips_clk *sclk; ++ size_t idx_start = priv->data->num_clk_base + priv->data->num_clk_fixed + ++ priv->data->num_clk_factor; ++ int ret, i; ++ ++ for (i = 0; i < priv->data->num_clk_periph; i++) { ++ int idx = idx_start + i; ++ ++ sclk = &priv->data->clk_periph[i]; ++ ret = of_clk_hw_register(np, &sclk->hw); ++ if (ret) { ++ pr_err("Couldn't register peripheral clock %d\n", idx); ++ goto err_clk_unreg; ++ } ++ ++ hws[idx] = &sclk->hw; ++ } ++ ++ return 0; ++ ++err_clk_unreg: ++ while (--i >= 0) { ++ sclk = &priv->data->clk_periph[i]; ++ clk_hw_unregister(&sclk->hw); ++ } ++ return ret; ++} ++ ++#define CLK_FIXED(_name, _parent, _rate) \ ++ { \ ++ .name = _name, \ ++ .parent = _parent, \ ++ .rate = _rate \ ++ } ++ ++static struct mtmips_clk_fixed rt305x_fixed_clocks[] = { ++ CLK_FIXED("xtal", NULL, 40000000) ++}; ++ ++static struct mtmips_clk_fixed rt3352_fixed_clocks[] = { ++ CLK_FIXED("periph", "xtal", 40000000) ++}; ++ ++static struct mtmips_clk_fixed mt76x8_fixed_clocks[] = { ++ CLK_FIXED("pcmi2s", "xtal", 480000000), ++ CLK_FIXED("periph", "xtal", 40000000) ++}; ++ ++static int mtmips_register_fixed_clocks(struct clk_hw_onecell_data *clk_data, ++ struct mtmips_clk_priv *priv) ++{ ++ struct clk_hw **hws = clk_data->hws; ++ struct mtmips_clk_fixed *sclk; ++ size_t idx_start = priv->data->num_clk_base; ++ int ret, i; ++ ++ for (i = 0; i < priv->data->num_clk_fixed; i++) { ++ int idx = idx_start + i; ++ ++ sclk = &priv->data->clk_fixed[i]; ++ sclk->hw = clk_hw_register_fixed_rate(NULL, sclk->name, ++ sclk->parent, 0, ++ sclk->rate); ++ if (IS_ERR(sclk->hw)) { ++ pr_err("Couldn't register fixed clock %d\n", idx); ++ goto err_clk_unreg; ++ } ++ ++ hws[idx] = sclk->hw; ++ } ++ ++ return 0; ++ ++err_clk_unreg: ++ while (--i >= 0) { ++ sclk = &priv->data->clk_fixed[i]; ++ clk_hw_unregister_fixed_rate(sclk->hw); ++ } ++ return ret; ++} ++ ++#define CLK_FACTOR(_name, _parent, _mult, _div) \ ++ { \ ++ .name = _name, \ ++ .parent = _parent, \ ++ .mult = _mult, \ ++ .div = _div, \ ++ .flags = CLK_SET_RATE_PARENT \ ++ } ++ ++static struct mtmips_clk_factor rt2880_factor_clocks[] = { ++ CLK_FACTOR("bus", "cpu", 1, 2) ++}; ++ ++static struct mtmips_clk_factor rt305x_factor_clocks[] = { ++ CLK_FACTOR("bus", "cpu", 1, 3) ++}; ++ ++static int mtmips_register_factor_clocks(struct clk_hw_onecell_data *clk_data, ++ struct mtmips_clk_priv *priv) ++{ ++ struct clk_hw **hws = clk_data->hws; ++ struct mtmips_clk_factor *sclk; ++ size_t idx_start = priv->data->num_clk_base + priv->data->num_clk_fixed; ++ int ret, i; ++ ++ for (i = 0; i < priv->data->num_clk_factor; i++) { ++ int idx = idx_start + i; ++ ++ sclk = &priv->data->clk_factor[i]; ++ sclk->hw = clk_hw_register_fixed_factor(NULL, sclk->name, ++ sclk->parent, sclk->flags, ++ sclk->mult, sclk->div); ++ if (IS_ERR(sclk->hw)) { ++ pr_err("Couldn't register factor clock %d\n", idx); ++ goto err_clk_unreg; ++ } ++ ++ hws[idx] = sclk->hw; ++ } ++ ++ return 0; ++ ++err_clk_unreg: ++ while (--i >= 0) { ++ sclk = &priv->data->clk_factor[i]; ++ clk_hw_unregister_fixed_factor(sclk->hw); ++ } ++ return ret; ++} ++ ++static inline struct mtmips_clk *to_mtmips_clk(struct clk_hw *hw) ++{ ++ return container_of(hw, struct mtmips_clk, hw); ++} ++ ++static unsigned long rt5350_xtal_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 val; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &val); ++ if (!(val & RT5350_CLKCFG0_XTAL_SEL)) ++ return 20000000; ++ ++ return 40000000; ++} ++ ++static unsigned long rt5350_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long xtal_clk) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ t = (t >> RT5350_SYSCFG0_CPUCLK_SHIFT) & RT5350_SYSCFG0_CPUCLK_MASK; ++ ++ switch (t) { ++ case RT5350_SYSCFG0_CPUCLK_360: ++ return 360000000; ++ case RT5350_SYSCFG0_CPUCLK_320: ++ return 320000000; ++ case RT5350_SYSCFG0_CPUCLK_300: ++ return 300000000; ++ default: ++ BUG(); ++ } ++} ++ ++static unsigned long rt5350_bus_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ if (parent_rate == 320000000) ++ return parent_rate / 4; ++ ++ return parent_rate / 3; ++} ++ ++static unsigned long rt3352_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long xtal_clk) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ t = (t >> RT3352_SYSCFG0_CPUCLK_SHIFT) & RT3352_SYSCFG0_CPUCLK_MASK; ++ ++ switch (t) { ++ case RT3352_SYSCFG0_CPUCLK_LOW: ++ return 384000000; ++ case RT3352_SYSCFG0_CPUCLK_HIGH: ++ return 400000000; ++ default: ++ BUG(); ++ } ++} ++ ++static unsigned long rt305x_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long xtal_clk) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ t = (t >> RT305X_SYSCFG_CPUCLK_SHIFT) & RT305X_SYSCFG_CPUCLK_MASK; ++ ++ switch (t) { ++ case RT305X_SYSCFG_CPUCLK_LOW: ++ return 320000000; ++ case RT305X_SYSCFG_CPUCLK_HIGH: ++ return 384000000; ++ default: ++ BUG(); ++ } ++} ++ ++static unsigned long rt3883_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long xtal_clk) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ t = (t >> RT3883_SYSCFG0_CPUCLK_SHIFT) & RT3883_SYSCFG0_CPUCLK_MASK; ++ ++ switch (t) { ++ case RT3883_SYSCFG0_CPUCLK_250: ++ return 250000000; ++ case RT3883_SYSCFG0_CPUCLK_384: ++ return 384000000; ++ case RT3883_SYSCFG0_CPUCLK_480: ++ return 480000000; ++ case RT3883_SYSCFG0_CPUCLK_500: ++ return 500000000; ++ default: ++ BUG(); ++ } ++} ++ ++static unsigned long rt3883_bus_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 ddr2; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ ddr2 = t & RT3883_SYSCFG0_DRAM_TYPE_DDR2; ++ ++ switch (parent_rate) { ++ case 250000000: ++ return (ddr2) ? 125000000 : 83000000; ++ case 384000000: ++ return (ddr2) ? 128000000 : 96000000; ++ case 480000000: ++ return (ddr2) ? 160000000 : 120000000; ++ case 500000000: ++ return (ddr2) ? 166000000 : 125000000; ++ default: ++ WARN_ON_ONCE(parent_rate == 0); ++ return parent_rate / 4; ++ } ++} ++ ++static unsigned long rt2880_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long xtal_clk) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ t = (t >> RT2880_CONFIG_CPUCLK_SHIFT) & RT2880_CONFIG_CPUCLK_MASK; ++ ++ switch (t) { ++ case RT2880_CONFIG_CPUCLK_250: ++ return 250000000; ++ case RT2880_CONFIG_CPUCLK_266: ++ return 266000000; ++ case RT2880_CONFIG_CPUCLK_280: ++ return 280000000; ++ case RT2880_CONFIG_CPUCLK_300: ++ return 300000000; ++ default: ++ BUG(); ++ } ++} ++ ++static u32 mt7620_calc_rate(u32 ref_rate, u32 mul, u32 div) ++{ ++ u64 t; ++ ++ t = ref_rate; ++ t *= mul; ++ t = div_u64(t, div); ++ ++ return t; ++} ++ ++static unsigned long mt7620_pll_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ static const u32 clk_divider[] = { 2, 3, 4, 8 }; ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ unsigned long cpu_pll; ++ u32 t; ++ u32 mul; ++ u32 div; ++ ++ regmap_read(sysc, SYSC_REG_CPLL_CONFIG0, &t); ++ if (t & CPLL_CFG0_BYPASS_REF_CLK) { ++ cpu_pll = parent_rate; ++ } else if ((t & CPLL_CFG0_SW_CFG) == 0) { ++ cpu_pll = 600000000; ++ } else { ++ mul = (t >> CPLL_CFG0_PLL_MULT_RATIO_SHIFT) & ++ CPLL_CFG0_PLL_MULT_RATIO_MASK; ++ mul += 24; ++ if (t & CPLL_CFG0_LC_CURFCK) ++ mul *= 2; ++ ++ div = (t >> CPLL_CFG0_PLL_DIV_RATIO_SHIFT) & ++ CPLL_CFG0_PLL_DIV_RATIO_MASK; ++ ++ WARN_ON_ONCE(div >= ARRAY_SIZE(clk_divider)); ++ ++ cpu_pll = mt7620_calc_rate(parent_rate, mul, clk_divider[div]); ++ } ++ ++ regmap_read(sysc, SYSC_REG_CPLL_CONFIG1, &t); ++ if (t & CPLL_CFG1_CPU_AUX1) ++ return parent_rate; ++ ++ if (t & CPLL_CFG1_CPU_AUX0) ++ return 480000000; ++ ++ return cpu_pll; ++} ++ ++static unsigned long mt7620_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ u32 mul; ++ u32 div; ++ ++ regmap_read(sysc, SYSC_REG_CPU_SYS_CLKCFG, &t); ++ mul = t & CPU_SYS_CLKCFG_CPU_FFRAC_MASK; ++ div = (t >> CPU_SYS_CLKCFG_CPU_FDIV_SHIFT) & ++ CPU_SYS_CLKCFG_CPU_FDIV_MASK; ++ ++ return mt7620_calc_rate(parent_rate, mul, div); ++} ++ ++static unsigned long mt7620_bus_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ static const u32 ocp_dividers[16] = { ++ [CPU_SYS_CLKCFG_OCP_RATIO_2] = 2, ++ [CPU_SYS_CLKCFG_OCP_RATIO_3] = 3, ++ [CPU_SYS_CLKCFG_OCP_RATIO_4] = 4, ++ [CPU_SYS_CLKCFG_OCP_RATIO_5] = 5, ++ [CPU_SYS_CLKCFG_OCP_RATIO_10] = 10, ++ }; ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ u32 ocp_ratio; ++ u32 div; ++ ++ regmap_read(sysc, SYSC_REG_CPU_SYS_CLKCFG, &t); ++ ocp_ratio = (t >> CPU_SYS_CLKCFG_OCP_RATIO_SHIFT) & ++ CPU_SYS_CLKCFG_OCP_RATIO_MASK; ++ ++ if (WARN_ON_ONCE(ocp_ratio >= ARRAY_SIZE(ocp_dividers))) ++ return parent_rate; ++ ++ div = ocp_dividers[ocp_ratio]; ++ ++ if (WARN(!div, "invalid divider for OCP ratio %u", ocp_ratio)) ++ return parent_rate; ++ ++ return parent_rate / div; ++} ++ ++static unsigned long mt7620_periph_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_CLKCFG0, &t); ++ if (t & CLKCFG0_PERI_CLK_SEL) ++ return parent_rate; ++ ++ return 40000000; ++} ++ ++static unsigned long mt76x8_xtal_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct mtmips_clk *clk = to_mtmips_clk(hw); ++ struct regmap *sysc = clk->priv->sysc; ++ u32 t; ++ ++ regmap_read(sysc, SYSC_REG_SYSTEM_CONFIG, &t); ++ if (t & MT7620_XTAL_FREQ_SEL) ++ return 40000000; ++ ++ return 20000000; ++} ++ ++static unsigned long mt76x8_cpu_recalc_rate(struct clk_hw *hw, ++ unsigned long xtal_clk) ++{ ++ if (xtal_clk == 40000000) ++ return 580000000; ++ ++ return 575000000; ++} ++ ++#define CLK_BASE(_name, _parent, _recalc) { \ ++ .init = &(const struct clk_init_data) { \ ++ .name = _name, \ ++ .ops = &(const struct clk_ops) { \ ++ .recalc_rate = _recalc, \ ++ }, \ ++ .parent_data = &(const struct clk_parent_data) { \ ++ .name = _parent, \ ++ .fw_name = _parent \ ++ }, \ ++ .num_parents = _parent ? 1 : 0 \ ++ }, \ ++} ++ ++static struct mtmips_clk rt2880_clks_base[] = { ++ { CLK_BASE("cpu", "xtal", rt2880_cpu_recalc_rate) } ++}; ++ ++static struct mtmips_clk rt305x_clks_base[] = { ++ { CLK_BASE("cpu", "xtal", rt305x_cpu_recalc_rate) } ++}; ++ ++static struct mtmips_clk rt3352_clks_base[] = { ++ { CLK_BASE("xtal", NULL, rt5350_xtal_recalc_rate) }, ++ { CLK_BASE("cpu", "xtal", rt3352_cpu_recalc_rate) } ++}; ++ ++static struct mtmips_clk rt3883_clks_base[] = { ++ { CLK_BASE("cpu", "xtal", rt3883_cpu_recalc_rate) }, ++ { CLK_BASE("bus", "cpu", rt3883_bus_recalc_rate) } ++}; ++ ++static struct mtmips_clk rt5350_clks_base[] = { ++ { CLK_BASE("xtal", NULL, rt5350_xtal_recalc_rate) }, ++ { CLK_BASE("cpu", "xtal", rt5350_cpu_recalc_rate) }, ++ { CLK_BASE("bus", "cpu", rt5350_bus_recalc_rate) } ++}; ++ ++static struct mtmips_clk mt7620_clks_base[] = { ++ { CLK_BASE("xtal", NULL, mt76x8_xtal_recalc_rate) }, ++ { CLK_BASE("pll", "xtal", mt7620_pll_recalc_rate) }, ++ { CLK_BASE("cpu", "pll", mt7620_cpu_recalc_rate) }, ++ { CLK_BASE("periph", "xtal", mt7620_periph_recalc_rate) }, ++ { CLK_BASE("bus", "cpu", mt7620_bus_recalc_rate) } ++}; ++ ++static struct mtmips_clk mt76x8_clks_base[] = { ++ { CLK_BASE("xtal", NULL, mt76x8_xtal_recalc_rate) }, ++ { CLK_BASE("cpu", "xtal", mt76x8_cpu_recalc_rate) } ++}; ++ ++static int mtmips_register_clocks(struct device_node *np, ++ struct clk_hw_onecell_data *clk_data, ++ struct mtmips_clk_priv *priv) ++{ ++ struct clk_hw **hws = clk_data->hws; ++ struct mtmips_clk *sclk; ++ int ret, i; ++ ++ for (i = 0; i < priv->data->num_clk_base; i++) { ++ sclk = &priv->data->clk_base[i]; ++ sclk->priv = priv; ++ ret = of_clk_hw_register(np, &sclk->hw); ++ if (ret) { ++ pr_err("Couldn't register top clock %i\n", i); ++ goto err_clk_unreg; ++ } ++ ++ hws[i] = &sclk->hw; ++ } ++ ++ return 0; ++ ++err_clk_unreg: ++ while (--i >= 0) { ++ sclk = &priv->data->clk_base[i]; ++ clk_hw_unregister(&sclk->hw); ++ } ++ return ret; ++} ++ ++static const struct mtmips_clk_data rt2880_clk_data = { ++ .clk_base = rt2880_clks_base, ++ .num_clk_base = ARRAY_SIZE(rt2880_clks_base), ++ .clk_fixed = rt305x_fixed_clocks, ++ .num_clk_fixed = ARRAY_SIZE(rt305x_fixed_clocks), ++ .clk_factor = rt2880_factor_clocks, ++ .num_clk_factor = ARRAY_SIZE(rt2880_factor_clocks), ++ .clk_periph = rt2880_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(rt2880_pherip_clks), ++}; ++ ++static const struct mtmips_clk_data rt305x_clk_data = { ++ .clk_base = rt305x_clks_base, ++ .num_clk_base = ARRAY_SIZE(rt305x_clks_base), ++ .clk_fixed = rt305x_fixed_clocks, ++ .num_clk_fixed = ARRAY_SIZE(rt305x_fixed_clocks), ++ .clk_factor = rt305x_factor_clocks, ++ .num_clk_factor = ARRAY_SIZE(rt305x_factor_clocks), ++ .clk_periph = rt305x_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(rt305x_pherip_clks), ++}; ++ ++static const struct mtmips_clk_data rt3352_clk_data = { ++ .clk_base = rt3352_clks_base, ++ .num_clk_base = ARRAY_SIZE(rt3352_clks_base), ++ .clk_fixed = rt3352_fixed_clocks, ++ .num_clk_fixed = ARRAY_SIZE(rt3352_fixed_clocks), ++ .clk_factor = rt305x_factor_clocks, ++ .num_clk_factor = ARRAY_SIZE(rt305x_factor_clocks), ++ .clk_periph = rt5350_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(rt5350_pherip_clks), ++}; ++ ++static const struct mtmips_clk_data rt3883_clk_data = { ++ .clk_base = rt3883_clks_base, ++ .num_clk_base = ARRAY_SIZE(rt3883_clks_base), ++ .clk_fixed = rt305x_fixed_clocks, ++ .num_clk_fixed = ARRAY_SIZE(rt305x_fixed_clocks), ++ .clk_factor = NULL, ++ .num_clk_factor = 0, ++ .clk_periph = rt5350_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(rt5350_pherip_clks), ++}; ++ ++static const struct mtmips_clk_data rt5350_clk_data = { ++ .clk_base = rt5350_clks_base, ++ .num_clk_base = ARRAY_SIZE(rt5350_clks_base), ++ .clk_fixed = rt3352_fixed_clocks, ++ .num_clk_fixed = ARRAY_SIZE(rt3352_fixed_clocks), ++ .clk_factor = NULL, ++ .num_clk_factor = 0, ++ .clk_periph = rt5350_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(rt5350_pherip_clks), ++}; ++ ++static const struct mtmips_clk_data mt7620_clk_data = { ++ .clk_base = mt7620_clks_base, ++ .num_clk_base = ARRAY_SIZE(mt7620_clks_base), ++ .clk_fixed = NULL, ++ .num_clk_fixed = 0, ++ .clk_factor = NULL, ++ .num_clk_factor = 0, ++ .clk_periph = mt7620_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(mt7620_pherip_clks), ++}; ++ ++static const struct mtmips_clk_data mt76x8_clk_data = { ++ .clk_base = mt76x8_clks_base, ++ .num_clk_base = ARRAY_SIZE(mt76x8_clks_base), ++ .clk_fixed = mt76x8_fixed_clocks, ++ .num_clk_fixed = ARRAY_SIZE(mt76x8_fixed_clocks), ++ .clk_factor = rt305x_factor_clocks, ++ .num_clk_factor = ARRAY_SIZE(rt305x_factor_clocks), ++ .clk_periph = mt76x8_pherip_clks, ++ .num_clk_periph = ARRAY_SIZE(mt76x8_pherip_clks), ++}; ++ ++static const struct of_device_id mtmips_of_match[] = { ++ { ++ .compatible = "ralink,rt2880-sysc", ++ .data = &rt2880_clk_data, ++ }, ++ { ++ .compatible = "ralink,rt3050-sysc", ++ .data = &rt305x_clk_data, ++ }, ++ { ++ .compatible = "ralink,rt3052-sysc", ++ .data = &rt305x_clk_data, ++ }, ++ { ++ .compatible = "ralink,rt3352-sysc", ++ .data = &rt3352_clk_data, ++ }, ++ { ++ .compatible = "ralink,rt3883-sysc", ++ .data = &rt3883_clk_data, ++ }, ++ { ++ .compatible = "ralink,rt5350-sysc", ++ .data = &rt5350_clk_data, ++ }, ++ { ++ .compatible = "ralink,mt7620-sysc", ++ .data = &mt7620_clk_data, ++ }, ++ { ++ .compatible = "ralink,mt7628-sysc", ++ .data = &mt76x8_clk_data, ++ }, ++ { ++ .compatible = "ralink,mt7688-sysc", ++ .data = &mt76x8_clk_data, ++ }, ++ {} ++}; ++ ++static void __init mtmips_clk_regs_init(struct device_node *node, ++ struct mtmips_clk_priv *priv) ++{ ++ u32 t; ++ ++ if (!of_device_is_compatible(node, "ralink,mt7620-sysc")) ++ return; ++ ++ /* ++ * When the CPU goes into sleep mode, the BUS ++ * clock will be too low for USB to function properly. ++ * Adjust the busses fractional divider to fix this ++ */ ++ regmap_read(priv->sysc, SYSC_REG_CPU_SYS_CLKCFG, &t); ++ t &= ~(CLKCFG_FDIV_MASK | CLKCFG_FFRAC_MASK); ++ t |= CLKCFG_FDIV_USB_VAL | CLKCFG_FFRAC_USB_VAL; ++ regmap_write(priv->sysc, SYSC_REG_CPU_SYS_CLKCFG, t); ++} ++ ++static void __init mtmips_clk_init(struct device_node *node) ++{ ++ const struct of_device_id *match; ++ const struct mtmips_clk_data *data; ++ struct mtmips_clk_priv *priv; ++ struct clk_hw_onecell_data *clk_data; ++ int ret, i, count; ++ ++ priv = kzalloc(sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return; ++ ++ priv->sysc = syscon_node_to_regmap(node); ++ if (IS_ERR(priv->sysc)) { ++ pr_err("Could not get sysc syscon regmap\n"); ++ goto free_clk_priv; ++ } ++ ++ mtmips_clk_regs_init(node, priv); ++ ++ match = of_match_node(mtmips_of_match, node); ++ if (WARN_ON(!match)) ++ return; ++ ++ data = match->data; ++ priv->data = data; ++ count = priv->data->num_clk_base + priv->data->num_clk_fixed + ++ priv->data->num_clk_factor + priv->data->num_clk_periph; ++ clk_data = kzalloc(struct_size(clk_data, hws, count), GFP_KERNEL); ++ if (!clk_data) ++ goto free_clk_priv; ++ ++ ret = mtmips_register_clocks(node, clk_data, priv); ++ if (ret) { ++ pr_err("Couldn't register top clocks\n"); ++ goto free_clk_data; ++ } ++ ++ ret = mtmips_register_fixed_clocks(clk_data, priv); ++ if (ret) { ++ pr_err("Couldn't register fixed clocks\n"); ++ goto unreg_clk_top; ++ } ++ ++ ret = mtmips_register_factor_clocks(clk_data, priv); ++ if (ret) { ++ pr_err("Couldn't register factor clocks\n"); ++ goto unreg_clk_fixed; ++ } ++ ++ ret = mtmips_register_pherip_clocks(node, clk_data, priv); ++ if (ret) { ++ pr_err("Couldn't register peripheral clocks\n"); ++ goto unreg_clk_factor; ++ } ++ ++ clk_data->num = count; ++ ++ ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); ++ if (ret) { ++ pr_err("Couldn't add clk hw provider\n"); ++ goto unreg_clk_periph; ++ } ++ ++ return; ++ ++unreg_clk_periph: ++ for (i = 0; i < priv->data->num_clk_periph; i++) { ++ struct mtmips_clk *sclk = &priv->data->clk_periph[i]; ++ ++ clk_hw_unregister(&sclk->hw); ++ } ++ ++unreg_clk_factor: ++ for (i = 0; i < priv->data->num_clk_factor; i++) { ++ struct mtmips_clk_factor *sclk = &priv->data->clk_factor[i]; ++ ++ clk_hw_unregister_fixed_factor(sclk->hw); ++ } ++ ++unreg_clk_fixed: ++ for (i = 0; i < priv->data->num_clk_fixed; i++) { ++ struct mtmips_clk_fixed *sclk = &priv->data->clk_fixed[i]; ++ ++ clk_hw_unregister_fixed_rate(sclk->hw); ++ } ++ ++unreg_clk_top: ++ for (i = 0; i < priv->data->num_clk_base; i++) { ++ struct mtmips_clk *sclk = &priv->data->clk_base[i]; ++ ++ clk_hw_unregister(&sclk->hw); ++ } ++ ++free_clk_data: ++ kfree(clk_data); ++ ++free_clk_priv: ++ kfree(priv); ++} ++CLK_OF_DECLARE_DRIVER(rt2880_clk, "ralink,rt2880-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(rt3050_clk, "ralink,rt3050-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(rt3052_clk, "ralink,rt3052-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(rt3352_clk, "ralink,rt3352-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(rt3883_clk, "ralink,rt3883-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(rt5350_clk, "ralink,rt5350-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(mt7620_clk, "ralink,mt7620-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(mt7628_clk, "ralink,mt7628-sysc", mtmips_clk_init); ++CLK_OF_DECLARE_DRIVER(mt7688_clk, "ralink,mt7688-sysc", mtmips_clk_init); ++ ++struct mtmips_rst { ++ struct reset_controller_dev rcdev; ++ struct regmap *sysc; ++}; ++ ++static struct mtmips_rst *to_mtmips_rst(struct reset_controller_dev *dev) ++{ ++ return container_of(dev, struct mtmips_rst, rcdev); ++} ++ ++static int mtmips_assert_device(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ struct mtmips_rst *data = to_mtmips_rst(rcdev); ++ struct regmap *sysc = data->sysc; ++ ++ return regmap_update_bits(sysc, SYSC_REG_RESET_CTRL, BIT(id), BIT(id)); ++} ++ ++static int mtmips_deassert_device(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ struct mtmips_rst *data = to_mtmips_rst(rcdev); ++ struct regmap *sysc = data->sysc; ++ ++ return regmap_update_bits(sysc, SYSC_REG_RESET_CTRL, BIT(id), 0); ++} ++ ++static int mtmips_reset_device(struct reset_controller_dev *rcdev, ++ unsigned long id) ++{ ++ int ret; ++ ++ ret = mtmips_assert_device(rcdev, id); ++ if (ret < 0) ++ return ret; ++ ++ return mtmips_deassert_device(rcdev, id); ++} ++ ++static int mtmips_rst_xlate(struct reset_controller_dev *rcdev, ++ const struct of_phandle_args *reset_spec) ++{ ++ unsigned long id = reset_spec->args[0]; ++ ++ if (id == 0 || id >= rcdev->nr_resets) ++ return -EINVAL; ++ ++ return id; ++} ++ ++static const struct reset_control_ops reset_ops = { ++ .reset = mtmips_reset_device, ++ .assert = mtmips_assert_device, ++ .deassert = mtmips_deassert_device ++}; ++ ++static int mtmips_reset_init(struct device *dev, struct regmap *sysc) ++{ ++ struct mtmips_rst *rst_data; ++ ++ rst_data = devm_kzalloc(dev, sizeof(*rst_data), GFP_KERNEL); ++ if (!rst_data) ++ return -ENOMEM; ++ ++ rst_data->sysc = sysc; ++ rst_data->rcdev.ops = &reset_ops; ++ rst_data->rcdev.owner = THIS_MODULE; ++ rst_data->rcdev.nr_resets = 32; ++ rst_data->rcdev.of_reset_n_cells = 1; ++ rst_data->rcdev.of_xlate = mtmips_rst_xlate; ++ rst_data->rcdev.of_node = dev_of_node(dev); ++ ++ return devm_reset_controller_register(dev, &rst_data->rcdev); ++} ++ ++static int mtmips_clk_probe(struct platform_device *pdev) ++{ ++ struct device_node *np = pdev->dev.of_node; ++ struct device *dev = &pdev->dev; ++ struct mtmips_clk_priv *priv; ++ int ret; ++ ++ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; ++ ++ priv->sysc = syscon_node_to_regmap(np); ++ if (IS_ERR(priv->sysc)) ++ return dev_err_probe(dev, PTR_ERR(priv->sysc), ++ "Could not get sysc syscon regmap\n"); ++ ++ ret = mtmips_reset_init(dev, priv->sysc); ++ if (ret) ++ return dev_err_probe(dev, ret, "Could not init reset controller\n"); ++ ++ return 0; ++} ++ ++static const struct of_device_id mtmips_clk_of_match[] = { ++ { .compatible = "ralink,rt2880-reset" }, ++ { .compatible = "ralink,rt2880-sysc" }, ++ { .compatible = "ralink,rt3050-sysc" }, ++ { .compatible = "ralink,rt3052-sysc" }, ++ { .compatible = "ralink,rt3352-sysc" }, ++ { .compatible = "ralink,rt3883-sysc" }, ++ { .compatible = "ralink,rt5350-sysc" }, ++ { .compatible = "ralink,mt7620-sysc" }, ++ { .compatible = "ralink,mt7628-sysc" }, ++ { .compatible = "ralink,mt7688-sysc" }, ++ {} ++}; ++ ++static struct platform_driver mtmips_clk_driver = { ++ .probe = mtmips_clk_probe, ++ .driver = { ++ .name = "mtmips-clk", ++ .of_match_table = mtmips_clk_of_match, ++ }, ++}; ++ ++static int __init mtmips_clk_reset_init(void) ++{ ++ return platform_driver_register(&mtmips_clk_driver); ++} ++arch_initcall(mtmips_clk_reset_init); diff --git a/target/linux/ramips/patches-5.15/005-v6.5-03-mips-ralink-rt288x-remove-clock-related-code.patch b/target/linux/ramips/patches-5.15/005-v6.5-03-mips-ralink-rt288x-remove-clock-related-code.patch new file mode 100644 index 0000000000..df4208b23d --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-03-mips-ralink-rt288x-remove-clock-related-code.patch @@ -0,0 +1,81 @@ +From ffcdf47379eae86dc8f8f02c62994dacf2c9038e Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:35 +0200 +Subject: [PATCH 3/9] mips: ralink: rt288x: remove clock related code + +A properly clock driver for ralink SoCs has been added. Hence there is no +need to have clock related code in 'arch/mips/ralink' folder anymore. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/include/asm/mach-ralink/rt288x.h | 10 ---------- + arch/mips/ralink/rt288x.c | 31 ------------------------------ + 2 files changed, 41 deletions(-) + +--- a/arch/mips/include/asm/mach-ralink/rt288x.h ++++ b/arch/mips/include/asm/mach-ralink/rt288x.h +@@ -17,7 +17,6 @@ + #define SYSC_REG_CHIP_NAME1 0x04 + #define SYSC_REG_CHIP_ID 0x0c + #define SYSC_REG_SYSTEM_CONFIG 0x10 +-#define SYSC_REG_CLKCFG 0x30 + + #define RT2880_CHIP_NAME0 0x38325452 + #define RT2880_CHIP_NAME1 0x20203038 +@@ -26,15 +25,6 @@ + #define CHIP_ID_ID_SHIFT 8 + #define CHIP_ID_REV_MASK 0xff + +-#define SYSTEM_CONFIG_CPUCLK_SHIFT 20 +-#define SYSTEM_CONFIG_CPUCLK_MASK 0x3 +-#define SYSTEM_CONFIG_CPUCLK_250 0x0 +-#define SYSTEM_CONFIG_CPUCLK_266 0x1 +-#define SYSTEM_CONFIG_CPUCLK_280 0x2 +-#define SYSTEM_CONFIG_CPUCLK_300 0x3 +- +-#define CLKCFG_SRAM_CS_N_WDT BIT(9) +- + #define RT2880_SDRAM_BASE 0x08000000 + #define RT2880_MEM_SIZE_MIN 2 + #define RT2880_MEM_SIZE_MAX 128 +--- a/arch/mips/ralink/rt288x.c ++++ b/arch/mips/ralink/rt288x.c +@@ -17,37 +17,6 @@ + + #include "common.h" + +-void __init ralink_clk_init(void) +-{ +- unsigned long cpu_rate, wmac_rate = 40000000; +- u32 t = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG); +- t = ((t >> SYSTEM_CONFIG_CPUCLK_SHIFT) & SYSTEM_CONFIG_CPUCLK_MASK); +- +- switch (t) { +- case SYSTEM_CONFIG_CPUCLK_250: +- cpu_rate = 250000000; +- break; +- case SYSTEM_CONFIG_CPUCLK_266: +- cpu_rate = 266666667; +- break; +- case SYSTEM_CONFIG_CPUCLK_280: +- cpu_rate = 280000000; +- break; +- case SYSTEM_CONFIG_CPUCLK_300: +- cpu_rate = 300000000; +- break; +- } +- +- ralink_clk_add("cpu", cpu_rate); +- ralink_clk_add("300100.timer", cpu_rate / 2); +- ralink_clk_add("300120.watchdog", cpu_rate / 2); +- ralink_clk_add("300500.uart", cpu_rate / 2); +- ralink_clk_add("300900.i2c", cpu_rate / 2); +- ralink_clk_add("300c00.uartlite", cpu_rate / 2); +- ralink_clk_add("400000.ethernet", cpu_rate / 2); +- ralink_clk_add("480000.wmac", wmac_rate); +-} +- + void __init ralink_of_remap(void) + { + rt_sysc_membase = plat_of_remap_node("ralink,rt2880-sysc"); diff --git a/target/linux/ramips/patches-5.15/005-v6.5-04-mips-ralink-rt305x-remove-clock-related-code.patch b/target/linux/ramips/patches-5.15/005-v6.5-04-mips-ralink-rt305x-remove-clock-related-code.patch new file mode 100644 index 0000000000..12b4623b73 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-04-mips-ralink-rt305x-remove-clock-related-code.patch @@ -0,0 +1,145 @@ +From daf73c70f69386fb15960526772ef584a4efcaf2 Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:36 +0200 +Subject: [PATCH 4/9] mips: ralink: rt305x: remove clock related code + +A properly clock driver for ralink SoCs has been added. Hence there is no +need to have clock related code in 'arch/mips/ralink' folder anymore. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/include/asm/mach-ralink/rt305x.h | 21 -------- + arch/mips/ralink/rt305x.c | 78 ------------------------------ + 2 files changed, 99 deletions(-) + +--- a/arch/mips/include/asm/mach-ralink/rt305x.h ++++ b/arch/mips/include/asm/mach-ralink/rt305x.h +@@ -66,26 +66,9 @@ static inline int soc_is_rt5350(void) + #define CHIP_ID_ID_SHIFT 8 + #define CHIP_ID_REV_MASK 0xff + +-#define RT305X_SYSCFG_CPUCLK_SHIFT 18 +-#define RT305X_SYSCFG_CPUCLK_MASK 0x1 +-#define RT305X_SYSCFG_CPUCLK_LOW 0x0 +-#define RT305X_SYSCFG_CPUCLK_HIGH 0x1 +- + #define RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT 2 +-#define RT305X_SYSCFG_CPUCLK_MASK 0x1 + #define RT305X_SYSCFG_SRAM_CS0_MODE_WDT 0x1 + +-#define RT3352_SYSCFG0_CPUCLK_SHIFT 8 +-#define RT3352_SYSCFG0_CPUCLK_MASK 0x1 +-#define RT3352_SYSCFG0_CPUCLK_LOW 0x0 +-#define RT3352_SYSCFG0_CPUCLK_HIGH 0x1 +- +-#define RT5350_SYSCFG0_CPUCLK_SHIFT 8 +-#define RT5350_SYSCFG0_CPUCLK_MASK 0x3 +-#define RT5350_SYSCFG0_CPUCLK_360 0x0 +-#define RT5350_SYSCFG0_CPUCLK_320 0x2 +-#define RT5350_SYSCFG0_CPUCLK_300 0x3 +- + #define RT5350_SYSCFG0_DRAM_SIZE_SHIFT 12 + #define RT5350_SYSCFG0_DRAM_SIZE_MASK 7 + #define RT5350_SYSCFG0_DRAM_SIZE_2M 0 +@@ -116,13 +99,9 @@ static inline int soc_is_rt5350(void) + + #define RT3352_SYSC_REG_SYSCFG0 0x010 + #define RT3352_SYSC_REG_SYSCFG1 0x014 +-#define RT3352_SYSC_REG_CLKCFG1 0x030 + #define RT3352_SYSC_REG_RSTCTRL 0x034 + #define RT3352_SYSC_REG_USB_PS 0x05c + +-#define RT3352_CLKCFG0_XTAL_SEL BIT(20) +-#define RT3352_CLKCFG1_UPHY0_CLK_EN BIT(18) +-#define RT3352_CLKCFG1_UPHY1_CLK_EN BIT(20) + #define RT3352_RSTCTRL_UHST BIT(22) + #define RT3352_RSTCTRL_UDEV BIT(25) + #define RT3352_SYSCFG1_USB0_HOST_MODE BIT(10) +--- a/arch/mips/ralink/rt305x.c ++++ b/arch/mips/ralink/rt305x.c +@@ -53,84 +53,6 @@ static unsigned long rt5350_get_mem_size + return ret; + } + +-void __init ralink_clk_init(void) +-{ +- unsigned long cpu_rate, sys_rate, wdt_rate, uart_rate; +- unsigned long wmac_rate = 40000000; +- +- u32 t = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG); +- +- if (soc_is_rt305x() || soc_is_rt3350()) { +- t = (t >> RT305X_SYSCFG_CPUCLK_SHIFT) & +- RT305X_SYSCFG_CPUCLK_MASK; +- switch (t) { +- case RT305X_SYSCFG_CPUCLK_LOW: +- cpu_rate = 320000000; +- break; +- case RT305X_SYSCFG_CPUCLK_HIGH: +- cpu_rate = 384000000; +- break; +- } +- sys_rate = uart_rate = wdt_rate = cpu_rate / 3; +- } else if (soc_is_rt3352()) { +- t = (t >> RT3352_SYSCFG0_CPUCLK_SHIFT) & +- RT3352_SYSCFG0_CPUCLK_MASK; +- switch (t) { +- case RT3352_SYSCFG0_CPUCLK_LOW: +- cpu_rate = 384000000; +- break; +- case RT3352_SYSCFG0_CPUCLK_HIGH: +- cpu_rate = 400000000; +- break; +- } +- sys_rate = wdt_rate = cpu_rate / 3; +- uart_rate = 40000000; +- } else if (soc_is_rt5350()) { +- t = (t >> RT5350_SYSCFG0_CPUCLK_SHIFT) & +- RT5350_SYSCFG0_CPUCLK_MASK; +- switch (t) { +- case RT5350_SYSCFG0_CPUCLK_360: +- cpu_rate = 360000000; +- sys_rate = cpu_rate / 3; +- break; +- case RT5350_SYSCFG0_CPUCLK_320: +- cpu_rate = 320000000; +- sys_rate = cpu_rate / 4; +- break; +- case RT5350_SYSCFG0_CPUCLK_300: +- cpu_rate = 300000000; +- sys_rate = cpu_rate / 3; +- break; +- default: +- BUG(); +- } +- uart_rate = 40000000; +- wdt_rate = sys_rate; +- } else { +- BUG(); +- } +- +- if (soc_is_rt3352() || soc_is_rt5350()) { +- u32 val = rt_sysc_r32(RT3352_SYSC_REG_SYSCFG0); +- +- if (!(val & RT3352_CLKCFG0_XTAL_SEL)) +- wmac_rate = 20000000; +- } +- +- ralink_clk_add("cpu", cpu_rate); +- ralink_clk_add("sys", sys_rate); +- ralink_clk_add("10000900.i2c", uart_rate); +- ralink_clk_add("10000a00.i2s", uart_rate); +- ralink_clk_add("10000b00.spi", sys_rate); +- ralink_clk_add("10000b40.spi", sys_rate); +- ralink_clk_add("10000100.timer", wdt_rate); +- ralink_clk_add("10000120.watchdog", wdt_rate); +- ralink_clk_add("10000500.uart", uart_rate); +- ralink_clk_add("10000c00.uartlite", uart_rate); +- ralink_clk_add("10100000.ethernet", sys_rate); +- ralink_clk_add("10180000.wmac", wmac_rate); +-} +- + void __init ralink_of_remap(void) + { + rt_sysc_membase = plat_of_remap_node("ralink,rt3050-sysc"); diff --git a/target/linux/ramips/patches-5.15/005-v6.5-05-mips-ralink-rt3883-remove-clock-related-code.patch b/target/linux/ramips/patches-5.15/005-v6.5-05-mips-ralink-rt3883-remove-clock-related-code.patch new file mode 100644 index 0000000000..c13c4215f3 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-05-mips-ralink-rt3883-remove-clock-related-code.patch @@ -0,0 +1,85 @@ +From 7cd1bb48885449a9323c7ff0f10012925e93b4e1 Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:37 +0200 +Subject: [PATCH 5/9] mips: ralink: rt3883: remove clock related code + +A properly clock driver for ralink SoCs has been added. Hence there is no +need to have clock related code in 'arch/mips/ralink' folder anymore. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/include/asm/mach-ralink/rt3883.h | 8 ------ + arch/mips/ralink/rt3883.c | 44 ------------------------------ + 2 files changed, 52 deletions(-) + +--- a/arch/mips/include/asm/mach-ralink/rt3883.h ++++ b/arch/mips/include/asm/mach-ralink/rt3883.h +@@ -90,14 +90,6 @@ + #define RT3883_REVID_VER_ID_SHIFT 8 + #define RT3883_REVID_ECO_ID_MASK 0x0f + +-#define RT3883_SYSCFG0_DRAM_TYPE_DDR2 BIT(17) +-#define RT3883_SYSCFG0_CPUCLK_SHIFT 8 +-#define RT3883_SYSCFG0_CPUCLK_MASK 0x3 +-#define RT3883_SYSCFG0_CPUCLK_250 0x0 +-#define RT3883_SYSCFG0_CPUCLK_384 0x1 +-#define RT3883_SYSCFG0_CPUCLK_480 0x2 +-#define RT3883_SYSCFG0_CPUCLK_500 0x3 +- + #define RT3883_SYSCFG1_USB0_HOST_MODE BIT(10) + #define RT3883_SYSCFG1_PCIE_RC_MODE BIT(8) + #define RT3883_SYSCFG1_PCI_HOST_MODE BIT(7) +--- a/arch/mips/ralink/rt3883.c ++++ b/arch/mips/ralink/rt3883.c +@@ -17,50 +17,6 @@ + + #include "common.h" + +-void __init ralink_clk_init(void) +-{ +- unsigned long cpu_rate, sys_rate; +- u32 syscfg0; +- u32 clksel; +- u32 ddr2; +- +- syscfg0 = rt_sysc_r32(RT3883_SYSC_REG_SYSCFG0); +- clksel = ((syscfg0 >> RT3883_SYSCFG0_CPUCLK_SHIFT) & +- RT3883_SYSCFG0_CPUCLK_MASK); +- ddr2 = syscfg0 & RT3883_SYSCFG0_DRAM_TYPE_DDR2; +- +- switch (clksel) { +- case RT3883_SYSCFG0_CPUCLK_250: +- cpu_rate = 250000000; +- sys_rate = (ddr2) ? 125000000 : 83000000; +- break; +- case RT3883_SYSCFG0_CPUCLK_384: +- cpu_rate = 384000000; +- sys_rate = (ddr2) ? 128000000 : 96000000; +- break; +- case RT3883_SYSCFG0_CPUCLK_480: +- cpu_rate = 480000000; +- sys_rate = (ddr2) ? 160000000 : 120000000; +- break; +- case RT3883_SYSCFG0_CPUCLK_500: +- cpu_rate = 500000000; +- sys_rate = (ddr2) ? 166000000 : 125000000; +- break; +- } +- +- ralink_clk_add("cpu", cpu_rate); +- ralink_clk_add("10000100.timer", sys_rate); +- ralink_clk_add("10000120.watchdog", sys_rate); +- ralink_clk_add("10000500.uart", 40000000); +- ralink_clk_add("10000900.i2c", 40000000); +- ralink_clk_add("10000a00.i2s", 40000000); +- ralink_clk_add("10000b00.spi", sys_rate); +- ralink_clk_add("10000b40.spi", sys_rate); +- ralink_clk_add("10000c00.uartlite", 40000000); +- ralink_clk_add("10100000.ethernet", sys_rate); +- ralink_clk_add("10180000.wmac", 40000000); +-} +- + void __init ralink_of_remap(void) + { + rt_sysc_membase = plat_of_remap_node("ralink,rt3883-sysc"); diff --git a/target/linux/ramips/patches-5.15/005-v6.5-06-mips-ralink-mt7620-remove-clock-related-code.patch b/target/linux/ramips/patches-5.15/005-v6.5-06-mips-ralink-mt7620-remove-clock-related-code.patch new file mode 100644 index 0000000000..7b83cf54b4 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-06-mips-ralink-mt7620-remove-clock-related-code.patch @@ -0,0 +1,327 @@ +From 04b153abdfcbaba70ceef5a846067d4447fd0078 Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:38 +0200 +Subject: [PATCH 6/9] mips: ralink: mt7620: remove clock related code + +A proper clock driver for ralink SoCs has been added. Hence there is no +need to have clock related code in 'arch/mips/ralink' folder anymore. +Since this is the last clock related code removal, remove also remaining +prototypes in 'common.h' header file. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/include/asm/mach-ralink/mt7620.h | 35 ----- + arch/mips/ralink/common.h | 3 - + arch/mips/ralink/mt7620.c | 226 ----------------------------- + 3 files changed, 264 deletions(-) + +--- a/arch/mips/include/asm/mach-ralink/mt7620.h ++++ b/arch/mips/include/asm/mach-ralink/mt7620.h +@@ -19,52 +19,17 @@ + #define SYSC_REG_CHIP_REV 0x0c + #define SYSC_REG_SYSTEM_CONFIG0 0x10 + #define SYSC_REG_SYSTEM_CONFIG1 0x14 +-#define SYSC_REG_CLKCFG0 0x2c +-#define SYSC_REG_CPU_SYS_CLKCFG 0x3c +-#define SYSC_REG_CPLL_CONFIG0 0x54 +-#define SYSC_REG_CPLL_CONFIG1 0x58 + + #define MT7620_CHIP_NAME0 0x3637544d + #define MT7620_CHIP_NAME1 0x20203032 + #define MT7628_CHIP_NAME1 0x20203832 + +-#define SYSCFG0_XTAL_FREQ_SEL BIT(6) +- + #define CHIP_REV_PKG_MASK 0x1 + #define CHIP_REV_PKG_SHIFT 16 + #define CHIP_REV_VER_MASK 0xf + #define CHIP_REV_VER_SHIFT 8 + #define CHIP_REV_ECO_MASK 0xf + +-#define CLKCFG0_PERI_CLK_SEL BIT(4) +- +-#define CPU_SYS_CLKCFG_OCP_RATIO_SHIFT 16 +-#define CPU_SYS_CLKCFG_OCP_RATIO_MASK 0xf +-#define CPU_SYS_CLKCFG_OCP_RATIO_1 0 /* 1:1 (Reserved) */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_1_5 1 /* 1:1.5 (Reserved) */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_2 2 /* 1:2 */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_2_5 3 /* 1:2.5 (Reserved) */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_3 4 /* 1:3 */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_3_5 5 /* 1:3.5 (Reserved) */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_4 6 /* 1:4 */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_5 7 /* 1:5 */ +-#define CPU_SYS_CLKCFG_OCP_RATIO_10 8 /* 1:10 */ +-#define CPU_SYS_CLKCFG_CPU_FDIV_SHIFT 8 +-#define CPU_SYS_CLKCFG_CPU_FDIV_MASK 0x1f +-#define CPU_SYS_CLKCFG_CPU_FFRAC_SHIFT 0 +-#define CPU_SYS_CLKCFG_CPU_FFRAC_MASK 0x1f +- +-#define CPLL_CFG0_SW_CFG BIT(31) +-#define CPLL_CFG0_PLL_MULT_RATIO_SHIFT 16 +-#define CPLL_CFG0_PLL_MULT_RATIO_MASK 0x7 +-#define CPLL_CFG0_LC_CURFCK BIT(15) +-#define CPLL_CFG0_BYPASS_REF_CLK BIT(14) +-#define CPLL_CFG0_PLL_DIV_RATIO_SHIFT 10 +-#define CPLL_CFG0_PLL_DIV_RATIO_MASK 0x3 +- +-#define CPLL_CFG1_CPU_AUX1 BIT(25) +-#define CPLL_CFG1_CPU_AUX0 BIT(24) +- + #define SYSCFG0_DRAM_TYPE_MASK 0x3 + #define SYSCFG0_DRAM_TYPE_SHIFT 4 + #define SYSCFG0_DRAM_TYPE_SDRAM 0 +--- a/arch/mips/ralink/common.h ++++ b/arch/mips/ralink/common.h +@@ -23,9 +23,6 @@ extern struct ralink_soc_info soc_info; + + extern void ralink_of_remap(void); + +-extern void ralink_clk_init(void); +-extern void ralink_clk_add(const char *dev, unsigned long rate); +- + extern void ralink_rst_init(void); + + extern void __init prom_soc_init(struct ralink_soc_info *soc_info); +--- a/arch/mips/ralink/mt7620.c ++++ b/arch/mips/ralink/mt7620.c +@@ -34,12 +34,6 @@ + #define PMU1_CFG 0x8C + #define DIG_SW_SEL BIT(25) + +-/* clock scaling */ +-#define CLKCFG_FDIV_MASK 0x1f00 +-#define CLKCFG_FDIV_USB_VAL 0x0300 +-#define CLKCFG_FFRAC_MASK 0x001f +-#define CLKCFG_FFRAC_USB_VAL 0x0003 +- + /* EFUSE bits */ + #define EFUSE_MT7688 0x100000 + +@@ -49,226 +43,6 @@ + /* does the board have sdram or ddram */ + static int dram_type; + +-static __init u32 +-mt7620_calc_rate(u32 ref_rate, u32 mul, u32 div) +-{ +- u64 t; +- +- t = ref_rate; +- t *= mul; +- do_div(t, div); +- +- return t; +-} +- +-#define MHZ(x) ((x) * 1000 * 1000) +- +-static __init unsigned long +-mt7620_get_xtal_rate(void) +-{ +- u32 reg; +- +- reg = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG0); +- if (reg & SYSCFG0_XTAL_FREQ_SEL) +- return MHZ(40); +- +- return MHZ(20); +-} +- +-static __init unsigned long +-mt7620_get_periph_rate(unsigned long xtal_rate) +-{ +- u32 reg; +- +- reg = rt_sysc_r32(SYSC_REG_CLKCFG0); +- if (reg & CLKCFG0_PERI_CLK_SEL) +- return xtal_rate; +- +- return MHZ(40); +-} +- +-static const u32 mt7620_clk_divider[] __initconst = { 2, 3, 4, 8 }; +- +-static __init unsigned long +-mt7620_get_cpu_pll_rate(unsigned long xtal_rate) +-{ +- u32 reg; +- u32 mul; +- u32 div; +- +- reg = rt_sysc_r32(SYSC_REG_CPLL_CONFIG0); +- if (reg & CPLL_CFG0_BYPASS_REF_CLK) +- return xtal_rate; +- +- if ((reg & CPLL_CFG0_SW_CFG) == 0) +- return MHZ(600); +- +- mul = (reg >> CPLL_CFG0_PLL_MULT_RATIO_SHIFT) & +- CPLL_CFG0_PLL_MULT_RATIO_MASK; +- mul += 24; +- if (reg & CPLL_CFG0_LC_CURFCK) +- mul *= 2; +- +- div = (reg >> CPLL_CFG0_PLL_DIV_RATIO_SHIFT) & +- CPLL_CFG0_PLL_DIV_RATIO_MASK; +- +- WARN_ON(div >= ARRAY_SIZE(mt7620_clk_divider)); +- +- return mt7620_calc_rate(xtal_rate, mul, mt7620_clk_divider[div]); +-} +- +-static __init unsigned long +-mt7620_get_pll_rate(unsigned long xtal_rate, unsigned long cpu_pll_rate) +-{ +- u32 reg; +- +- reg = rt_sysc_r32(SYSC_REG_CPLL_CONFIG1); +- if (reg & CPLL_CFG1_CPU_AUX1) +- return xtal_rate; +- +- if (reg & CPLL_CFG1_CPU_AUX0) +- return MHZ(480); +- +- return cpu_pll_rate; +-} +- +-static __init unsigned long +-mt7620_get_cpu_rate(unsigned long pll_rate) +-{ +- u32 reg; +- u32 mul; +- u32 div; +- +- reg = rt_sysc_r32(SYSC_REG_CPU_SYS_CLKCFG); +- +- mul = reg & CPU_SYS_CLKCFG_CPU_FFRAC_MASK; +- div = (reg >> CPU_SYS_CLKCFG_CPU_FDIV_SHIFT) & +- CPU_SYS_CLKCFG_CPU_FDIV_MASK; +- +- return mt7620_calc_rate(pll_rate, mul, div); +-} +- +-static const u32 mt7620_ocp_dividers[16] __initconst = { +- [CPU_SYS_CLKCFG_OCP_RATIO_2] = 2, +- [CPU_SYS_CLKCFG_OCP_RATIO_3] = 3, +- [CPU_SYS_CLKCFG_OCP_RATIO_4] = 4, +- [CPU_SYS_CLKCFG_OCP_RATIO_5] = 5, +- [CPU_SYS_CLKCFG_OCP_RATIO_10] = 10, +-}; +- +-static __init unsigned long +-mt7620_get_dram_rate(unsigned long pll_rate) +-{ +- if (dram_type == SYSCFG0_DRAM_TYPE_SDRAM) +- return pll_rate / 4; +- +- return pll_rate / 3; +-} +- +-static __init unsigned long +-mt7620_get_sys_rate(unsigned long cpu_rate) +-{ +- u32 reg; +- u32 ocp_ratio; +- u32 div; +- +- reg = rt_sysc_r32(SYSC_REG_CPU_SYS_CLKCFG); +- +- ocp_ratio = (reg >> CPU_SYS_CLKCFG_OCP_RATIO_SHIFT) & +- CPU_SYS_CLKCFG_OCP_RATIO_MASK; +- +- if (WARN_ON(ocp_ratio >= ARRAY_SIZE(mt7620_ocp_dividers))) +- return cpu_rate; +- +- div = mt7620_ocp_dividers[ocp_ratio]; +- if (WARN(!div, "invalid divider for OCP ratio %u", ocp_ratio)) +- return cpu_rate; +- +- return cpu_rate / div; +-} +- +-void __init ralink_clk_init(void) +-{ +- unsigned long xtal_rate; +- unsigned long cpu_pll_rate; +- unsigned long pll_rate; +- unsigned long cpu_rate; +- unsigned long sys_rate; +- unsigned long dram_rate; +- unsigned long periph_rate; +- unsigned long pcmi2s_rate; +- +- xtal_rate = mt7620_get_xtal_rate(); +- +-#define RFMT(label) label ":%lu.%03luMHz " +-#define RINT(x) ((x) / 1000000) +-#define RFRAC(x) (((x) / 1000) % 1000) +- +- if (is_mt76x8()) { +- if (xtal_rate == MHZ(40)) +- cpu_rate = MHZ(580); +- else +- cpu_rate = MHZ(575); +- dram_rate = sys_rate = cpu_rate / 3; +- periph_rate = MHZ(40); +- pcmi2s_rate = MHZ(480); +- +- ralink_clk_add("10000d00.uartlite", periph_rate); +- ralink_clk_add("10000e00.uartlite", periph_rate); +- } else { +- cpu_pll_rate = mt7620_get_cpu_pll_rate(xtal_rate); +- pll_rate = mt7620_get_pll_rate(xtal_rate, cpu_pll_rate); +- +- cpu_rate = mt7620_get_cpu_rate(pll_rate); +- dram_rate = mt7620_get_dram_rate(pll_rate); +- sys_rate = mt7620_get_sys_rate(cpu_rate); +- periph_rate = mt7620_get_periph_rate(xtal_rate); +- pcmi2s_rate = periph_rate; +- +- pr_debug(RFMT("XTAL") RFMT("CPU_PLL") RFMT("PLL"), +- RINT(xtal_rate), RFRAC(xtal_rate), +- RINT(cpu_pll_rate), RFRAC(cpu_pll_rate), +- RINT(pll_rate), RFRAC(pll_rate)); +- +- ralink_clk_add("10000500.uart", periph_rate); +- } +- +- pr_debug(RFMT("CPU") RFMT("DRAM") RFMT("SYS") RFMT("PERIPH"), +- RINT(cpu_rate), RFRAC(cpu_rate), +- RINT(dram_rate), RFRAC(dram_rate), +- RINT(sys_rate), RFRAC(sys_rate), +- RINT(periph_rate), RFRAC(periph_rate)); +-#undef RFRAC +-#undef RINT +-#undef RFMT +- +- ralink_clk_add("cpu", cpu_rate); +- ralink_clk_add("10000100.timer", periph_rate); +- ralink_clk_add("10000120.watchdog", periph_rate); +- ralink_clk_add("10000900.i2c", periph_rate); +- ralink_clk_add("10000a00.i2s", pcmi2s_rate); +- ralink_clk_add("10000b00.spi", sys_rate); +- ralink_clk_add("10000b40.spi", sys_rate); +- ralink_clk_add("10000c00.uartlite", periph_rate); +- ralink_clk_add("10000d00.uart1", periph_rate); +- ralink_clk_add("10000e00.uart2", periph_rate); +- ralink_clk_add("10180000.wmac", xtal_rate); +- +- if (IS_ENABLED(CONFIG_USB) && !is_mt76x8()) { +- /* +- * When the CPU goes into sleep mode, the BUS clock will be +- * too low for USB to function properly. Adjust the busses +- * fractional divider to fix this +- */ +- u32 val = rt_sysc_r32(SYSC_REG_CPU_SYS_CLKCFG); +- +- val &= ~(CLKCFG_FDIV_MASK | CLKCFG_FFRAC_MASK); +- val |= CLKCFG_FDIV_USB_VAL | CLKCFG_FFRAC_USB_VAL; +- +- rt_sysc_w32(val, SYSC_REG_CPU_SYS_CLKCFG); +- } +-} +- + void __init ralink_of_remap(void) + { + rt_sysc_membase = plat_of_remap_node("ralink,mt7620a-sysc"); diff --git a/target/linux/ramips/patches-5.15/005-v6.5-07-mips-ralink-remove-reset-related-code.patch b/target/linux/ramips/patches-5.15/005-v6.5-07-mips-ralink-remove-reset-related-code.patch new file mode 100644 index 0000000000..bdd9fcfd33 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-07-mips-ralink-remove-reset-related-code.patch @@ -0,0 +1,121 @@ +From 201ddc05777cd8e084b508bcdda22214bfe2895e Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:39 +0200 +Subject: [PATCH 7/9] mips: ralink: remove reset related code + +A proper clock driver for ralink SoCs has been added. This driver is also +a reset provider for the SoC. Hence there is no need to have reset related +code in 'arch/mips/ralink' folder anymore. The only code that remains is +the one related with mips_reboot_setup where a PCI reset is performed. +We maintain this because I cannot test old ralink board with PCI to be +sure all works if we remove also this code. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/ralink/common.h | 2 -- + arch/mips/ralink/of.c | 4 ---- + arch/mips/ralink/reset.c | 61 ----------------------------------------------- + 3 files changed, 67 deletions(-) + +--- a/arch/mips/ralink/common.h ++++ b/arch/mips/ralink/common.h +@@ -23,8 +23,6 @@ extern struct ralink_soc_info soc_info; + + extern void ralink_of_remap(void); + +-extern void ralink_rst_init(void); +- + extern void __init prom_soc_init(struct ralink_soc_info *soc_info); + + __iomem void *plat_of_remap_node(const char *node); +--- a/arch/mips/ralink/of.c ++++ b/arch/mips/ralink/of.c +@@ -95,10 +95,6 @@ static int __init plat_of_setup(void) + { + __dt_register_buses(soc_info.compatible, "palmbus"); + +- /* make sure that the reset controller is setup early */ +- if (ralink_soc != MT762X_SOC_MT7621AT) +- ralink_rst_init(); +- + return 0; + } + +--- a/arch/mips/ralink/reset.c ++++ b/arch/mips/ralink/reset.c +@@ -10,7 +10,6 @@ + #include + #include + #include +-#include + + #include + +@@ -22,66 +21,6 @@ + #define RSTCTL_RESET_PCI BIT(26) + #define RSTCTL_RESET_SYSTEM BIT(0) + +-static int ralink_assert_device(struct reset_controller_dev *rcdev, +- unsigned long id) +-{ +- u32 val; +- +- if (id == 0) +- return -1; +- +- val = rt_sysc_r32(SYSC_REG_RESET_CTRL); +- val |= BIT(id); +- rt_sysc_w32(val, SYSC_REG_RESET_CTRL); +- +- return 0; +-} +- +-static int ralink_deassert_device(struct reset_controller_dev *rcdev, +- unsigned long id) +-{ +- u32 val; +- +- if (id == 0) +- return -1; +- +- val = rt_sysc_r32(SYSC_REG_RESET_CTRL); +- val &= ~BIT(id); +- rt_sysc_w32(val, SYSC_REG_RESET_CTRL); +- +- return 0; +-} +- +-static int ralink_reset_device(struct reset_controller_dev *rcdev, +- unsigned long id) +-{ +- ralink_assert_device(rcdev, id); +- return ralink_deassert_device(rcdev, id); +-} +- +-static const struct reset_control_ops reset_ops = { +- .reset = ralink_reset_device, +- .assert = ralink_assert_device, +- .deassert = ralink_deassert_device, +-}; +- +-static struct reset_controller_dev reset_dev = { +- .ops = &reset_ops, +- .owner = THIS_MODULE, +- .nr_resets = 32, +- .of_reset_n_cells = 1, +-}; +- +-void ralink_rst_init(void) +-{ +- reset_dev.of_node = of_find_compatible_node(NULL, NULL, +- "ralink,rt2880-reset"); +- if (!reset_dev.of_node) +- pr_err("Failed to find reset controller node"); +- else +- reset_controller_register(&reset_dev); +-} +- + static void ralink_restart(char *command) + { + if (IS_ENABLED(CONFIG_PCI)) { diff --git a/target/linux/ramips/patches-5.15/005-v6.5-08-mips-ralink-get-cpu-rate-from-new-driver-code.patch b/target/linux/ramips/patches-5.15/005-v6.5-08-mips-ralink-get-cpu-rate-from-new-driver-code.patch new file mode 100644 index 0000000000..2430c1f375 --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-08-mips-ralink-get-cpu-rate-from-new-driver-code.patch @@ -0,0 +1,102 @@ +From ad38c17b0c26ae2108b50ac1eb0281a2e1ce08e9 Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:40 +0200 +Subject: [PATCH 8/9] mips: ralink: get cpu rate from new driver code + +At very early stage on boot, there is a need to set 'mips_hpt_frequency'. +This timer frequency is a half of the CPU frequency. To get clocks properly +set we need to call to 'of_clk_init()' and properly get cpu clock frequency +afterwards. Depending on the SoC, CPU clock index and compatible differs, so +use them to get the proper clock frm the clock provider. Hence, adapt code +to be aligned with new clock driver. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/ralink/clk.c | 61 ++++++++++++++++++++++++++++++++++++++++++-------- + 1 file changed, 52 insertions(+), 9 deletions(-) + +--- a/arch/mips/ralink/clk.c ++++ b/arch/mips/ralink/clk.c +@@ -11,29 +11,72 @@ + #include + #include + #include ++#include + + #include + + #include "common.h" + +-void ralink_clk_add(const char *dev, unsigned long rate) ++static const char *clk_cpu(int *idx) + { +- struct clk *clk = clk_register_fixed_rate(NULL, dev, NULL, 0, rate); +- +- if (!clk) +- panic("failed to add clock"); +- +- clkdev_create(clk, NULL, "%s", dev); ++ switch (ralink_soc) { ++ case RT2880_SOC: ++ *idx = 0; ++ return "ralink,rt2880-sysc"; ++ case RT3883_SOC: ++ *idx = 0; ++ return "ralink,rt3883-sysc"; ++ case RT305X_SOC_RT3050: ++ *idx = 0; ++ return "ralink,rt3050-sysc"; ++ case RT305X_SOC_RT3052: ++ *idx = 0; ++ return "ralink,rt3052-sysc"; ++ case RT305X_SOC_RT3350: ++ *idx = 1; ++ return "ralink,rt3350-sysc"; ++ case RT305X_SOC_RT3352: ++ *idx = 1; ++ return "ralink,rt3352-sysc"; ++ case RT305X_SOC_RT5350: ++ *idx = 1; ++ return "ralink,rt5350-sysc"; ++ case MT762X_SOC_MT7620A: ++ *idx = 2; ++ return "ralink,mt7620-sysc"; ++ case MT762X_SOC_MT7620N: ++ *idx = 2; ++ return "ralink,mt7620-sysc"; ++ case MT762X_SOC_MT7628AN: ++ *idx = 1; ++ return "ralink,mt7628-sysc"; ++ case MT762X_SOC_MT7688: ++ *idx = 1; ++ return "ralink,mt7688-sysc"; ++ default: ++ *idx = -1; ++ return "invalid"; ++ } + } + + void __init plat_time_init(void) + { ++ struct of_phandle_args clkspec; ++ const char *compatible; + struct clk *clk; ++ int cpu_clk_idx; + + ralink_of_remap(); + +- ralink_clk_init(); +- clk = clk_get_sys("cpu", NULL); ++ compatible = clk_cpu(&cpu_clk_idx); ++ if (cpu_clk_idx == -1) ++ panic("unable to get CPU clock index"); ++ ++ of_clk_init(NULL); ++ clkspec.np = of_find_compatible_node(NULL, NULL, compatible); ++ clkspec.args_count = 1; ++ clkspec.args[0] = cpu_clk_idx; ++ clk = of_clk_get_from_provider(&clkspec); + if (IS_ERR(clk)) + panic("unable to get CPU clock, err=%ld", PTR_ERR(clk)); + pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000); diff --git a/target/linux/ramips/patches-5.15/005-v6.5-09-MAINTAINERS-add-Mediatek-MTMIPS-Clock-maintainer.patch b/target/linux/ramips/patches-5.15/005-v6.5-09-MAINTAINERS-add-Mediatek-MTMIPS-Clock-maintainer.patch new file mode 100644 index 0000000000..3c9a5982af --- /dev/null +++ b/target/linux/ramips/patches-5.15/005-v6.5-09-MAINTAINERS-add-Mediatek-MTMIPS-Clock-maintainer.patch @@ -0,0 +1,28 @@ +From fc15a7193a4d37d79e873fa06cc423180ddd2ddf Mon Sep 17 00:00:00 2001 +From: Sergio Paracuellos +Date: Mon, 19 Jun 2023 06:09:41 +0200 +Subject: [PATCH 9/9] MAINTAINERS: add Mediatek MTMIPS Clock maintainer + +Adding myself as maintainer for Mediatek MTMIPS clock driver. + +Signed-off-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + MAINTAINERS | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -11858,6 +11858,12 @@ S: Maintained + F: Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml + F: drivers/clk/ralink/clk-mt7621.c + ++MEDIATEK MTMIPS CLOCK DRIVER ++M: Sergio Paracuellos ++S: Maintained ++F: Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml ++F: drivers/clk/ralink/clk-mtmips.c ++ + MEDIATEK MT7621/28/88 I2C DRIVER + M: Stefan Roese + L: linux-i2c@vger.kernel.org diff --git a/target/linux/ramips/patches-5.15/006-v6.5-mips-ralink-introduce-commonly-used-remap-node-funct.patch b/target/linux/ramips/patches-5.15/006-v6.5-mips-ralink-introduce-commonly-used-remap-node-funct.patch new file mode 100644 index 0000000000..429b9feb9d --- /dev/null +++ b/target/linux/ramips/patches-5.15/006-v6.5-mips-ralink-introduce-commonly-used-remap-node-funct.patch @@ -0,0 +1,189 @@ +From fd99ac5055d4705e91c73d1adba18bc71c8511a8 Mon Sep 17 00:00:00 2001 +From: Shiji Yang +Date: Tue, 20 Jun 2023 19:44:32 +0800 +Subject: [PATCH] mips: ralink: introduce commonly used remap node function + +The ralink_of_remap() function is repeated several times on SoC specific +source files. They have the same structure, but just differ in compatible +strings. In order to make commonly use of these codes, this patch +introduces a newly designed mtmips_of_remap_node() function to match and +remap all supported system controller and memory controller nodes. + +Build and run tested on MT7620 and MT7628. + +Signed-off-by: Shiji Yang +Reviewed-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/ralink/common.h | 2 -- + arch/mips/ralink/mt7620.c | 9 --------- + arch/mips/ralink/mt7621.c | 9 --------- + arch/mips/ralink/of.c | 42 +++++++++++++++++++++++++++++++++++------- + arch/mips/ralink/rt288x.c | 9 --------- + arch/mips/ralink/rt305x.c | 9 --------- + arch/mips/ralink/rt3883.c | 9 --------- + 7 files changed, 35 insertions(+), 54 deletions(-) + +--- a/arch/mips/ralink/common.h ++++ b/arch/mips/ralink/common.h +@@ -25,6 +25,4 @@ extern void ralink_of_remap(void); + + extern void __init prom_soc_init(struct ralink_soc_info *soc_info); + +-__iomem void *plat_of_remap_node(const char *node); +- + #endif /* _RALINK_COMMON_H__ */ +--- a/arch/mips/ralink/mt7620.c ++++ b/arch/mips/ralink/mt7620.c +@@ -43,15 +43,6 @@ + /* does the board have sdram or ddram */ + static int dram_type; + +-void __init ralink_of_remap(void) +-{ +- rt_sysc_membase = plat_of_remap_node("ralink,mt7620a-sysc"); +- rt_memc_membase = plat_of_remap_node("ralink,mt7620a-memc"); +- +- if (!rt_sysc_membase || !rt_memc_membase) +- panic("Failed to remap core resources"); +-} +- + static __init void + mt7620_dram_init(struct ralink_soc_info *soc_info) + { +--- a/arch/mips/ralink/mt7621.c ++++ b/arch/mips/ralink/mt7621.c +@@ -58,15 +58,6 @@ static void __init mt7621_memory_detect( + memblock_add(MT7621_HIGHMEM_BASE, MT7621_HIGHMEM_SIZE); + } + +-void __init ralink_of_remap(void) +-{ +- rt_sysc_membase = plat_of_remap_node("mediatek,mt7621-sysc"); +- rt_memc_membase = plat_of_remap_node("mediatek,mt7621-memc"); +- +- if (!rt_sysc_membase || !rt_memc_membase) +- panic("Failed to remap core resources"); +-} +- + static unsigned int __init mt7621_get_soc_name0(void) + { + return __raw_readl(MT7621_SYSC_BASE + SYSC_REG_CHIP_NAME0); +--- a/arch/mips/ralink/of.c ++++ b/arch/mips/ralink/of.c +@@ -29,26 +29,56 @@ __iomem void *rt_sysc_membase; + __iomem void *rt_memc_membase; + EXPORT_SYMBOL_GPL(rt_sysc_membase); + +-__iomem void *plat_of_remap_node(const char *node) ++static const struct of_device_id mtmips_memc_match[] = { ++ { .compatible = "mediatek,mt7621-memc" }, ++ { .compatible = "ralink,mt7620a-memc" }, ++ { .compatible = "ralink,rt2880-memc" }, ++ { .compatible = "ralink,rt3050-memc" }, ++ { .compatible = "ralink,rt3883-memc" }, ++ {} ++}; ++ ++static const struct of_device_id mtmips_sysc_match[] = { ++ { .compatible = "mediatek,mt7621-sysc" }, ++ { .compatible = "ralink,mt7620a-sysc" }, ++ { .compatible = "ralink,rt2880-sysc" }, ++ { .compatible = "ralink,rt3050-sysc" }, ++ { .compatible = "ralink,rt3883-sysc" }, ++ {} ++}; ++ ++static __iomem void * ++mtmips_of_remap_node(const struct of_device_id *match, const char *type) + { + struct resource res; + struct device_node *np; + +- np = of_find_compatible_node(NULL, NULL, node); ++ np = of_find_matching_node(NULL, match); + if (!np) +- panic("Failed to find %s node", node); ++ panic("Failed to find %s controller node", type); + + if (of_address_to_resource(np, 0, &res)) +- panic("Failed to get resource for %s", node); ++ panic("Failed to get resource for %s node", np->name); + + if (!request_mem_region(res.start, + resource_size(&res), + res.name)) +- panic("Failed to request resources for %s", node); ++ panic("Failed to request resources for %s node", np->name); ++ ++ of_node_put(np); + + return ioremap(res.start, resource_size(&res)); + } + ++void __init ralink_of_remap(void) ++{ ++ rt_sysc_membase = mtmips_of_remap_node(mtmips_sysc_match, "system"); ++ rt_memc_membase = mtmips_of_remap_node(mtmips_memc_match, "memory"); ++ ++ if (!rt_sysc_membase || !rt_memc_membase) ++ panic("Failed to remap core resources"); ++} ++ + void __init device_tree_init(void) + { + unflatten_and_copy_device_tree(); +--- a/arch/mips/ralink/rt288x.c ++++ b/arch/mips/ralink/rt288x.c +@@ -17,15 +17,6 @@ + + #include "common.h" + +-void __init ralink_of_remap(void) +-{ +- rt_sysc_membase = plat_of_remap_node("ralink,rt2880-sysc"); +- rt_memc_membase = plat_of_remap_node("ralink,rt2880-memc"); +- +- if (!rt_sysc_membase || !rt_memc_membase) +- panic("Failed to remap core resources"); +-} +- + void __init prom_soc_init(struct ralink_soc_info *soc_info) + { + void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT2880_SYSC_BASE); +--- a/arch/mips/ralink/rt305x.c ++++ b/arch/mips/ralink/rt305x.c +@@ -53,15 +53,6 @@ static unsigned long rt5350_get_mem_size + return ret; + } + +-void __init ralink_of_remap(void) +-{ +- rt_sysc_membase = plat_of_remap_node("ralink,rt3050-sysc"); +- rt_memc_membase = plat_of_remap_node("ralink,rt3050-memc"); +- +- if (!rt_sysc_membase || !rt_memc_membase) +- panic("Failed to remap core resources"); +-} +- + void __init prom_soc_init(struct ralink_soc_info *soc_info) + { + void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE); +--- a/arch/mips/ralink/rt3883.c ++++ b/arch/mips/ralink/rt3883.c +@@ -17,15 +17,6 @@ + + #include "common.h" + +-void __init ralink_of_remap(void) +-{ +- rt_sysc_membase = plat_of_remap_node("ralink,rt3883-sysc"); +- rt_memc_membase = plat_of_remap_node("ralink,rt3883-memc"); +- +- if (!rt_sysc_membase || !rt_memc_membase) +- panic("Failed to remap core resources"); +-} +- + void __init prom_soc_init(struct ralink_soc_info *soc_info) + { + void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT3883_SYSC_BASE); diff --git a/target/linux/ramips/patches-5.15/007-v6.5-clk-ralink-mtmips-Fix-uninitialized-use-of-ret-in-mt.patch b/target/linux/ramips/patches-5.15/007-v6.5-clk-ralink-mtmips-Fix-uninitialized-use-of-ret-in-mt.patch new file mode 100644 index 0000000000..c0c2a6e204 --- /dev/null +++ b/target/linux/ramips/patches-5.15/007-v6.5-clk-ralink-mtmips-Fix-uninitialized-use-of-ret-in-mt.patch @@ -0,0 +1,56 @@ +From 6e68dae946e3a0333fbde5487ce163142ca10ae0 Mon Sep 17 00:00:00 2001 +From: Nathan Chancellor +Date: Thu, 22 Jun 2023 15:56:19 +0000 +Subject: clk: ralink: mtmips: Fix uninitialized use of ret in + mtmips_register_{fixed,factor}_clocks() + +Clang warns: + + drivers/clk/ralink/clk-mtmips.c:309:9: error: variable 'ret' is uninitialized when used here [-Werror,-Wuninitialized] + 309 | return ret; + | ^~~ + drivers/clk/ralink/clk-mtmips.c:285:9: note: initialize the variable 'ret' to silence this warning + 285 | int ret, i; + | ^ + | = 0 + drivers/clk/ralink/clk-mtmips.c:359:9: error: variable 'ret' is uninitialized when used here [-Werror,-Wuninitialized] + 359 | return ret; + | ^~~ + drivers/clk/ralink/clk-mtmips.c:335:9: note: initialize the variable 'ret' to silence this warning + 335 | int ret, i; + | ^ + | = 0 + 2 errors generated. + +Set ret to the return value of clk_hw_register_fixed_rate() using the +PTR_ERR() macro, which ensures ret is not used uninitialized, clearing +up the warning. + +Fixes: 6f3b15586eef ("clk: ralink: add clock and reset driver for MTMIPS SoCs") +Closes: https://github.com/ClangBuiltLinux/linux/issues/1879 +Signed-off-by: Nathan Chancellor +Reviewed-by: Nick Desaulniers +Acked-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + drivers/clk/ralink/clk-mtmips.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/clk/ralink/clk-mtmips.c ++++ b/drivers/clk/ralink/clk-mtmips.c +@@ -292,6 +292,7 @@ static int mtmips_register_fixed_clocks( + sclk->parent, 0, + sclk->rate); + if (IS_ERR(sclk->hw)) { ++ ret = PTR_ERR(sclk->hw); + pr_err("Couldn't register fixed clock %d\n", idx); + goto err_clk_unreg; + } +@@ -342,6 +343,7 @@ static int mtmips_register_factor_clocks + sclk->parent, sclk->flags, + sclk->mult, sclk->div); + if (IS_ERR(sclk->hw)) { ++ ret = PTR_ERR(sclk->hw); + pr_err("Couldn't register factor clock %d\n", idx); + goto err_clk_unreg; + } diff --git a/target/linux/ramips/patches-5.15/008-v6.5-mips-ralink-match-all-supported-system-controller-co.patch b/target/linux/ramips/patches-5.15/008-v6.5-mips-ralink-match-all-supported-system-controller-co.patch new file mode 100644 index 0000000000..6940a2b4b9 --- /dev/null +++ b/target/linux/ramips/patches-5.15/008-v6.5-mips-ralink-match-all-supported-system-controller-co.patch @@ -0,0 +1,40 @@ +From 670f77f76f650b1b341d31d009cc2fb03a4d1fcf Mon Sep 17 00:00:00 2001 +From: Shiji Yang +Date: Fri, 23 Jun 2023 08:17:48 +0800 +Subject: mips: ralink: match all supported system controller compatible + strings + +Recently, A new clock and reset controller driver has been introduced to +the ralink mips target[1]. It provides proper system control and adds more +SoC specific compatible strings. In order to better initialize CPUs, this +patch removes the outdated "ralink,mt7620a-sysc" and add all dt-binding +documented compatible strings to the system controller match table. + +[1] https://lore.kernel.org/all/20230619040941.1340372-1-sergio.paracuellos@gmail.com/ + +Signed-off-by: Shiji Yang +Reviewed-by: Sergio Paracuellos +Signed-off-by: Thomas Bogendoerfer +--- + arch/mips/ralink/of.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +--- a/arch/mips/ralink/of.c ++++ b/arch/mips/ralink/of.c +@@ -40,10 +40,15 @@ static const struct of_device_id mtmips_ + + static const struct of_device_id mtmips_sysc_match[] = { + { .compatible = "mediatek,mt7621-sysc" }, +- { .compatible = "ralink,mt7620a-sysc" }, ++ { .compatible = "ralink,mt7620-sysc" }, ++ { .compatible = "ralink,mt7628-sysc" }, ++ { .compatible = "ralink,mt7688-sysc" }, + { .compatible = "ralink,rt2880-sysc" }, + { .compatible = "ralink,rt3050-sysc" }, ++ { .compatible = "ralink,rt3052-sysc" }, ++ { .compatible = "ralink,rt3352-sysc" }, + { .compatible = "ralink,rt3883-sysc" }, ++ { .compatible = "ralink,rt5350-sysc" }, + {} + }; + diff --git a/target/linux/ramips/patches-5.15/110-reset_controller_driver.patch b/target/linux/ramips/patches-5.15/110-reset_controller_driver.patch deleted file mode 100644 index 6c923d70c3..0000000000 --- a/target/linux/ramips/patches-5.15/110-reset_controller_driver.patch +++ /dev/null @@ -1,61 +0,0 @@ ---- a/arch/mips/ralink/reset.c -+++ b/arch/mips/ralink/reset.c -@@ -11,6 +11,7 @@ - #include - #include - #include -+#include - - #include - -@@ -65,21 +66,39 @@ static const struct reset_control_ops re - .deassert = ralink_deassert_device, - }; - --static struct reset_controller_dev reset_dev = { -- .ops = &reset_ops, -- .owner = THIS_MODULE, -- .nr_resets = 32, -- .of_reset_n_cells = 1, -+static int ralink_reset_probe(struct platform_device *pdev) -+{ -+ struct reset_controller_dev *rcdev; -+ -+ rcdev = devm_kzalloc(&pdev->dev, sizeof(*rcdev), GFP_KERNEL); -+ if (!rcdev) -+ return -ENOMEM; -+ -+ rcdev->ops = &reset_ops; -+ rcdev->owner = THIS_MODULE; -+ rcdev->nr_resets = 32; -+ rcdev->of_reset_n_cells = 1; -+ rcdev->of_node = pdev->dev.of_node; -+ -+ return devm_reset_controller_register(&pdev->dev, rcdev); -+} -+ -+static const struct of_device_id ralink_reset_dt_ids[] = { -+ { .compatible = "ralink,rt2880-reset" }, -+ {} -+}; -+ -+static struct platform_driver ralink_reset_driver = { -+ .probe = ralink_reset_probe, -+ .driver = { -+ .name = "ralink-reset", -+ .of_match_table = ralink_reset_dt_ids, -+ } - }; - - void ralink_rst_init(void) - { -- reset_dev.of_node = of_find_compatible_node(NULL, NULL, -- "ralink,rt2880-reset"); -- if (!reset_dev.of_node) -- pr_err("Failed to find reset controller node"); -- else -- reset_controller_register(&reset_dev); -+ platform_driver_register(&ralink_reset_driver); - } - - static void ralink_restart(char *command) diff --git a/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch b/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch index c31be4a5df..4f4fe9018a 100644 --- a/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch +++ b/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch @@ -1,6 +1,6 @@ --- a/arch/mips/include/asm/mach-ralink/mt7620.h +++ b/arch/mips/include/asm/mach-ralink/mt7620.h -@@ -96,4 +96,16 @@ static inline int mt7620_get_eco(void) +@@ -61,4 +61,16 @@ static inline int mt7620_get_eco(void) return rt_sysc_r32(SYSC_REG_CHIP_REV) & CHIP_REV_ECO_MASK; } diff --git a/target/linux/ramips/rt288x/config-5.15 b/target/linux/ramips/rt288x/config-5.15 index 0e4afe367e..9f502c220f 100644 --- a/target/linux/ramips/rt288x/config-5.15 +++ b/target/linux/ramips/rt288x/config-5.15 @@ -6,6 +6,7 @@ CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15 CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_BLK_MQ_PCI=y CONFIG_CEVT_R4K=y +CONFIG_CLK_MTMIPS=y CONFIG_CLONE_BACKWARDS=y CONFIG_CMDLINE="rootfstype=squashfs,jffs2" CONFIG_CMDLINE_BOOL=y @@ -82,6 +83,7 @@ CONFIG_MDIO_BUS=y CONFIG_MDIO_DEVICE=y CONFIG_MDIO_DEVRES=y CONFIG_MEMFD_CREATE=y +CONFIG_MFD_SYSCON=y CONFIG_MIGRATION=y CONFIG_MIPS=y CONFIG_MIPS_ASID_BITS=8 @@ -143,6 +145,8 @@ CONFIG_PTP_1588_CLOCK_OPTIONAL=y CONFIG_RALINK=y CONFIG_RALINK_WDT=y CONFIG_RATIONAL=y +CONFIG_REGMAP=y +CONFIG_REGMAP_MMIO=y CONFIG_RESET_CONTROLLER=y CONFIG_SERIAL_8250_RT288X=y CONFIG_SERIAL_MCTRL_GPIO=y diff --git a/target/linux/ramips/rt305x/config-5.15 b/target/linux/ramips/rt305x/config-5.15 index fccc7370a5..5af80adca6 100644 --- a/target/linux/ramips/rt305x/config-5.15 +++ b/target/linux/ramips/rt305x/config-5.15 @@ -8,6 +8,7 @@ CONFIG_CEVT_R4K=y CONFIG_CEVT_SYSTICK_QUIRK=y CONFIG_CLKEVT_RT3352=y CONFIG_CLKSRC_MMIO=y +CONFIG_CLK_MTMIPS=y CONFIG_CLONE_BACKWARDS=y CONFIG_CMDLINE="rootfstype=squashfs,jffs2" CONFIG_CMDLINE_BOOL=y @@ -19,7 +20,7 @@ CONFIG_CPU_HAS_DIEI=y CONFIG_CPU_HAS_PREFETCH=y CONFIG_CPU_HAS_RIXI=y CONFIG_CPU_HAS_SYNC=y -CONFIG_CPU_LITTLE_ENDIAN=y` +CONFIG_CPU_LITTLE_ENDIAN=y CONFIG_CPU_MIPS32=y # CONFIG_CPU_MIPS32_R1 is not set CONFIG_CPU_MIPS32_R2=y diff --git a/target/linux/ramips/rt3883/config-5.15 b/target/linux/ramips/rt3883/config-5.15 index 3d412e8b9d..2977a3b531 100644 --- a/target/linux/ramips/rt3883/config-5.15 +++ b/target/linux/ramips/rt3883/config-5.15 @@ -7,6 +7,7 @@ CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15 CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_BLK_MQ_PCI=y CONFIG_CEVT_R4K=y +CONFIG_CLK_MTMIPS=y CONFIG_CLONE_BACKWARDS=y CONFIG_CMDLINE="rootfstype=squashfs,jffs2" CONFIG_CMDLINE_BOOL=y