clk: davinci: Add platform information for TI DM355 PSC

This adds platform-specific declarations for the PSC clocks on TI
DM355 based systems.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
index aef0390f710e9f3c0779e16e847345e4408ac713..e0da5c3859e29ca38525e2447752f11e2216f91e 100644 (file)
--- a/drivers/clk/davinci/Makefile
+++ b/drivers/clk/davinci/Makefile
@@ -12,4 +12,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DM646x)     += pll-dm646x.o
 obj-y += psc.o
 obj-$(CONFIG_ARCH_DAVINCI_DA830)       += psc-da830.o
 obj-$(CONFIG_ARCH_DAVINCI_DA850)       += psc-da850.o
+obj-$(CONFIG_ARCH_DAVINCI_DM355)       += psc-dm355.o
 endif

diff --git a/drivers/clk/davinci/psc-dm355.c b/drivers/clk/davinci/psc-dm355.c
new file mode 100644 (file)
index 0000000..6995ece
--- /dev/null
+++ b/drivers/clk/davinci/psc-dm355.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PSC clock descriptions for TI DaVinci DM355
+ *
+ * Copyright (C) 2018 David Lechner <david@lechnology.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "psc.h"
+
+LPSC_CLKDEV1(vpss_master_clkdev,       "master",       "vpss");
+LPSC_CLKDEV1(vpss_slave_clkdev,                "slave",        "vpss");
+LPSC_CLKDEV1(spi1_clkdev,              NULL,           "spi_davinci.1");
+LPSC_CLKDEV1(mmcsd1_clkdev,            NULL,           "dm6441-mmc.1");
+LPSC_CLKDEV1(mcbsp1_clkdev,            NULL,           "davinci-mcbsp.1");
+LPSC_CLKDEV1(usb_clkdev,               "usb",          NULL);
+LPSC_CLKDEV1(spi2_clkdev,              NULL,           "spi_davinci.2");
+LPSC_CLKDEV1(aemif_clkdev,             "aemif",        NULL);
+LPSC_CLKDEV1(mmcsd0_clkdev,            NULL,           "dm6441-mmc.0");
+LPSC_CLKDEV1(mcbsp0_clkdev,            NULL,           "davinci-mcbsp.0");
+LPSC_CLKDEV1(i2c_clkdev,               NULL,           "i2c_davinci.1");
+LPSC_CLKDEV1(uart0_clkdev,             NULL,           "serial8250.0");
+LPSC_CLKDEV1(uart1_clkdev,             NULL,           "serial8250.1");
+LPSC_CLKDEV1(uart2_clkdev,             NULL,           "serial8250.2");
+LPSC_CLKDEV1(spi0_clkdev,              NULL,           "spi_davinci.0");
+/* REVISIT: gpio-davinci.c should be modified to drop con_id */
+LPSC_CLKDEV1(gpio_clkdev,              "gpio",         NULL);
+LPSC_CLKDEV1(timer0_clkdev,            "timer0",       NULL);
+LPSC_CLKDEV1(timer2_clkdev,            NULL,           "davinci-wdt");
+LPSC_CLKDEV1(vpss_dac_clkdev,          "vpss_dac",     NULL);
+
+static const struct davinci_lpsc_clk_info dm355_psc_info[] = {
+       LPSC(0,  0, vpss_master, pll1_sysclk4, vpss_master_clkdev, 0),
+       LPSC(1,  0, vpss_slave,  pll1_sysclk4, vpss_slave_clkdev,  0),
+       LPSC(5,  0, timer3,      pll1_auxclk,  NULL,               0),
+       LPSC(6,  0, spi1,        pll1_sysclk2, spi1_clkdev,        0),
+       LPSC(7,  0, mmcsd1,      pll1_sysclk2, mmcsd1_clkdev,      0),
+       LPSC(8,  0, asp1,        pll1_sysclk2, NULL,               0),
+       LPSC(9,  0, usb,         pll1_sysclk2, usb_clkdev,         0),
+       LPSC(10, 0, pwm3,        pll1_auxclk,  NULL,               0),
+       LPSC(11, 0, spi2,        pll1_sysclk2, spi2_clkdev,        0),
+       LPSC(12, 0, rto,         pll1_auxclk,  NULL,               0),
+       LPSC(14, 0, aemif,       pll1_sysclk2, aemif_clkdev,       0),
+       LPSC(15, 0, mmcsd0,      pll1_sysclk2, mmcsd0_clkdev,      0),
+       LPSC(17, 0, asp0,        pll1_sysclk2, NULL,               0),
+       LPSC(18, 0, i2c,         pll1_auxclk,  i2c_clkdev,         0),
+       LPSC(19, 0, uart0,       pll1_auxclk,  uart0_clkdev,       0),
+       LPSC(20, 0, uart1,       pll1_auxclk,  uart1_clkdev,       0),
+       LPSC(21, 0, uart2,       pll1_sysclk2, uart2_clkdev,       0),
+       LPSC(22, 0, spi0,        pll1_sysclk2, spi0_clkdev,        0),
+       LPSC(23, 0, pwm0,        pll1_auxclk,  NULL,               0),
+       LPSC(24, 0, pwm1,        pll1_auxclk,  NULL,               0),
+       LPSC(25, 0, pwm2,        pll1_auxclk,  NULL,               0),
+       LPSC(26, 0, gpio,        pll1_sysclk2, gpio_clkdev,        0),
+       LPSC(27, 0, timer0,      pll1_auxclk,  timer0_clkdev,      LPSC_ALWAYS_ENABLED),
+       LPSC(28, 0, timer1,      pll1_auxclk,  NULL,               0),
+       /* REVISIT: why can't this be disabled? */
+       LPSC(29, 0, timer2,      pll1_auxclk,  timer2_clkdev,      LPSC_ALWAYS_ENABLED),
+       LPSC(31, 0, arm,         pll1_sysclk1, NULL,               LPSC_ALWAYS_ENABLED),
+       LPSC(40, 0, mjcp,        pll1_sysclk1, NULL,               0),
+       LPSC(41, 0, vpss_dac,    pll1_sysclk3, vpss_dac_clkdev,    0),
+       { }
+};
+
+static int dm355_psc_init(struct device *dev, void __iomem *base)
+{
+       return davinci_psc_register_clocks(dev, dm355_psc_info, 42, base);
+}
+
+static struct clk_bulk_data dm355_psc_parent_clks[] = {
+       { .id = "pll1_sysclk1" },
+       { .id = "pll1_sysclk2" },
+       { .id = "pll1_sysclk3" },
+       { .id = "pll1_sysclk4" },
+       { .id = "pll1_auxclk"  },
+};
+
+const struct davinci_psc_init_data dm355_psc_init_data = {
+       .parent_clks            = dm355_psc_parent_clks,
+       .num_parent_clks        = ARRAY_SIZE(dm355_psc_parent_clks),
+       .psc_init               = &dm355_psc_init,
+};

diff --git a/drivers/clk/davinci/psc.c b/drivers/clk/davinci/psc.c
index fa3953685384624b251a4363156a87bdb344f8b6..0825b62c1f3d5095ab5795d754cb73252ff4c7fe 100644 (file)
--- a/drivers/clk/davinci/psc.c
+++ b/drivers/clk/davinci/psc.c
@@ -492,6 +492,7 @@ static const struct platform_device_id davinci_psc_id_table[] = {
        { .name = "da830-psc1", .driver_data = (kernel_ulong_t)&da830_psc1_init_data },
        { .name = "da850-psc0", .driver_data = (kernel_ulong_t)&da850_psc0_init_data },
        { .name = "da850-psc1", .driver_data = (kernel_ulong_t)&da850_psc1_init_data },
+       { .name = "dm355-psc",  .driver_data = (kernel_ulong_t)&dm355_psc_init_data  },
        { }
 };
 

diff --git a/drivers/clk/davinci/psc.h b/drivers/clk/davinci/psc.h
index 476bd74c7f50f84fd54457e620293ba0fa830a1e..d672e72ec227eaf438ac3e73b37fe6f17f3f48fe 100644 (file)
--- a/drivers/clk/davinci/psc.h
+++ b/drivers/clk/davinci/psc.h
@@ -100,5 +100,6 @@ extern const struct davinci_psc_init_data da850_psc0_init_data;
 extern const struct davinci_psc_init_data da850_psc1_init_data;
 extern const struct davinci_psc_init_data of_da850_psc0_init_data;
 extern const struct davinci_psc_init_data of_da850_psc1_init_data;
+extern const struct davinci_psc_init_data dm355_psc_init_data;
 
 #endif /* __CLK_DAVINCI_PSC_H__ */