ath79: add support for Atheros PB42 reference board

Specifications:

SoC: AR7130
DRAM: 32Mb DDR1
Flash: 8Mb SPI-NOR
LAN: 4x 10/100Mbps via ADM6996 switch on MII
WAN: 1x 10/100Mbps via RMII
PCI: 2x mini-PCI
UART: standard QCA UART header
JTAG: yes
Button: 1x WPS, 1x reset
LEDs: 8x LEDs

Installation instructions:

The original FIS partitioning does not provide enough
space for the kernel, so the installation must start
with re-partitioning the flash from RedBoot.

The suggested partition table is the following:

RedBoot           0xBF000000  0xBF000000  0x00040000  0x00000000
kernel            0xBF040000  0x80060000  0x001F0000  0x80060000
rootfs            0xBF230000  0x00000000  0x005B0000  0x00000000
FIS directory     0xBF7E0000  0xBF7E0000  0x0000F000  0x00000000
RedBoot config    0xBF7EF000  0xBF7EF000  0x00001000  0x00000000

Which can be created with:
fis init
fis create -r 0x80060000 -e 0x80060000 -b 0xbf040000 -l 0x220000 kernel
fis create -b 0xbf260000 -l 0x580000 rootfs

The kernel and the rootfs must then be loaded from TFTP:

load -r -v -b 0x80060000 openwrt-ath79-generic-atheros_pb42-squashfs-kernel.bin
fis create kernel
load -r -v -b 0x80100000 openwrt-ath79-generic-atheros_pb42-squashfs-rootfs.bin
fis create rootfs

Once OpenWrt is installed, the normal sysupgrade method will work for
upgrades.

The MAC address is stored in the "boardconfig" partition, which is
automatically created.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>

diff --git a/target/linux/ath79/dts/ar7130_atheros_pb42.dts b/target/linux/ath79/dts/ar7130_atheros_pb42.dts
new file mode 100644 (file)
index 0000000..8f01fcf
--- /dev/null
+++ b/target/linux/ath79/dts/ar7130_atheros_pb42.dts
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "ar7100.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+       compatible = "atheros,pb42", "qca,ar7130";
+       model = "Atheros PB42 reference board";
+
+       aliases {
+               led-boot = &led_system;
+               led-failsafe = &led_system;
+               led-running = &led_system;
+               led-upgrade = &led_system;
+       };
+
+       extosc: ref {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-output-names = "ref";
+               clock-frequency = <40000000>;
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led_system: system {
+                       label = "green:system";
+                       gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
+               };
+
+               led_ds1a: ds1a {
+                       label = "green:ds1a";
+                       gpios = <&gpio 5 GPIO_ACTIVE_HIGH>;
+               };
+
+               led_ds1b: ds1b {
+                       label = "green:ds1b";
+                       gpios = <&gpio 4 GPIO_ACTIVE_HIGH>;
+               };
+       };
+
+       keys {
+               compatible = "gpio-keys";
+
+               wps {
+                       label = "sw4";
+                       linux,code = <KEY_WPS_BUTTON>;
+                       gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+                       debounce-interval = <60>;
+               };
+
+               reset {
+                       label = "reset";
+                       gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+                       debounce-interval = <60>;
+               };
+       };
+};
+
+&pcie0 {
+       status = "okay";
+};
+
+&spi {
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <25000000>;
+
+               partitions {
+                       compatible = "ecoscentric,redboot-fis-partitions";
+               };
+       };
+};
+
+&uart {
+       status = "okay";
+};
+
+&eth0 {
+       status = "okay";
+
+       phy-mode = "mii";
+
+       fixed-link {
+               speed = <100>;
+               full-duplex;
+       };
+};
+
+&eth1 {
+       status = "okay";
+
+       phy-mode = "rmii";
+
+       fixed-link {
+               speed = <100>;
+               full-duplex;
+       };
+};

diff --git a/target/linux/ath79/generic/base-files/etc/board.d/01_leds b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
index 4ee347c14157e22ba7b59d0c1fd9d263fd0783a8..57af593482b53d55aa05d318e1158b04746a0bdb 100644 (file)
--- a/target/linux/ath79/generic/base-files/etc/board.d/01_leds
+++ b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
@@ -93,6 +93,10 @@ asus,rp-ac66)
        ucidef_set_led_rssi "rssimedium-wlan1" "RSSIMEDIUM" "red:rssimedium-wlan1" "wlan1" "1" "79"
        ucidef_set_led_rssi "rssihigh-wlan1" "RSSIHIGH" "green:rssihigh-wlan1" "wlan1" "70" "100"
        ;;
+atheros,pb42)
+       ucidef_set_led_wlan "ds1a" "DS1A" "green:ds1a" "phy0tpt"
+       ucidef_set_led_wlan "ds1a" "DS1B" "green:ds1b" "phy1tpt"
+       ;;
 avm,fritz1750e)
        ucidef_set_led_netdev "lan" "LAN" "green:lan" "eth0"
        ucidef_set_rssimon "wlan1" "200000" "1"

diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 1b19d90a05ea4e7b4fb496e6ae1585867c7a294b..09d11cffe3203546d4a8a733b5944c08d73230ca 100644 (file)
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -167,6 +167,8 @@ ath79_setup_interfaces()
                        "0@eth0" "2:lan" "3:lan" "4:lan" "5:lan" "1:wan"
                ucidef_add_switch "switch1" \
                        "0@eth1" "1:lan" "2:lan" "3:lan" "4:lan" "5:lan"
+       atheros,pb42)
+               ucidef_set_interfaces_lan_wan "eth1" "eth0"
                ;;
        avm,fritz4020|\
        pcs,cr3000|\
@@ -608,6 +610,10 @@ ath79_setup_macs()
                lan_mac=$(macaddr_setbit $base_mac 29)
                [ $lan_mac = $base_mac ] && lan_mac=$(macaddr_unsetbit $base_mac 29)
                ;;
+       atheros,pb42)
+               lan_mac=$(mtd_get_mac_binary "boardconfig" 0x1000)
+               wan_mac=$(mtd_get_mac_binary "boardconfig" 0x1006)
+               ;;
        avm,fritz1750e|\
        avm,fritz450e|\
        avm,fritzdvbc)

diff --git a/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh b/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
index 67a3635075b8a1cc27265c1b9d127688d18a437d..9257d4669db65b8a797ce4f6ac057aa85831ce72 100644 (file)
--- a/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
@@ -97,6 +97,7 @@ platform_do_upgrade() {
                PART_NAME="inactive"
                platform_do_upgrade_dualboot_datachk "$1"
                ;;
+       atheros,pb42|\
        ubnt,routerstation|\
        ubnt,routerstation-pro)
                platform_do_upgrade_redboot_fis "$1" kernel

diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 59cc3c5a2b3b842eefffa701b19add026f66a9a6..2f98826801a6c8c8a491c6b3bbad0b980608daff 100644 (file)
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -564,6 +564,21 @@ define Device/atheros_db120
 endef
 TARGET_DEVICES += atheros_db120
 
+define Device/atheros_pb42
+  SOC := ar7130
+  DEVICE_VENDOR := Atheros
+  DEVICE_MODEL := PB42
+  IMAGE_SIZE := 7808k
+  IMAGES += kernel.bin rootfs.bin
+  IMAGE/kernel.bin := append-kernel
+  IMAGE/rootfs.bin := append-rootfs | pad-rootfs
+  IMAGE/sysupgrade.bin := append-rootfs | pad-rootfs | combined-image | \
+       append-metadata | check-size
+  KERNEL := kernel-bin | append-dtb | lzma | pad-to $$(BLOCKSIZE)
+  SUPPORTED_DEVICES += pb42
+endef
+TARGET_DEVICES += atheros_pb42
+
 define Device/avm
   DEVICE_VENDOR := AVM
   KERNEL := kernel-bin | append-dtb | lzma | eva-image

diff --git a/target/linux/ath79/patches-5.10/940-redboot_boardconfig.patch b/target/linux/ath79/patches-5.10/940-redboot_boardconfig.patch
new file mode 100644 (file)
index 0000000..4dd740d
--- /dev/null
+++ b/target/linux/ath79/patches-5.10/940-redboot_boardconfig.patch
@@ -0,0 +1,60 @@
+--- a/drivers/mtd/parsers/redboot.c
++++ b/drivers/mtd/parsers/redboot.c
+@@ -30,6 +30,8 @@
+ #include <linux/mtd/partitions.h>
+ #include <linux/module.h>
+ 
++#define BOARD_CONFIG_PART             "boardconfig"
++
+ struct fis_image_desc {
+     unsigned char name[16];      // Null terminated name
+     uint32_t    flash_base;    // Address within FLASH of image
+@@ -60,6 +62,7 @@ static int parse_redboot_partitions(stru
+                                   const struct mtd_partition **pparts,
+                                   struct mtd_part_parser_data *data)
+ {
++      unsigned long max_offset = 0;
+       int nrparts = 0;
+       struct fis_image_desc *buf;
+       struct mtd_partition *parts;
+@@ -225,14 +228,15 @@ static int parse_redboot_partitions(stru
+               }
+       }
+ #endif
+-      parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
++      parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen +
++                      sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
+ 
+       if (!parts) {
+               ret = -ENOMEM;
+               goto out;
+       }
+ 
+-      nullname = (char *)&parts[nrparts];
++      nullname = (char *)&parts[nrparts + 1];
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+       if (nulllen > 0) {
+               strcpy(nullname, nullstring);
+@@ -251,6 +255,8 @@ static int parse_redboot_partitions(stru
+       }
+ #endif
+       for ( ; i<nrparts; i++) {
++              if (max_offset < buf[i].flash_base + buf[i].size)
++                      max_offset = buf[i].flash_base + buf[i].size;
+               parts[i].size = fl->img->size;
+               parts[i].offset = fl->img->flash_base;
+               parts[i].name = names;
+@@ -284,6 +290,13 @@ static int parse_redboot_partitions(stru
+               fl = fl->next;
+               kfree(tmp_fl);
+       }
++      if (master->size - max_offset >= master->erasesize) {
++              parts[nrparts].size = master->size - max_offset;
++              parts[nrparts].offset = max_offset;
++              parts[nrparts].name = names;
++              strcpy(names, BOARD_CONFIG_PART);
++              nrparts++;
++      }
+       ret = nrparts;
+       *pparts = parts;
+  out: