From 01729ccf19b3c136cd93f8837b0a2761c23da700 Mon Sep 17 00:00:00 2001 From: "Vishwanathrao Badarkhe, Manish" Date: Wed, 6 Feb 2013 15:06:22 +0530 Subject: ARM: davinci: da850: add DT node for I2C0 Add I2C0 device tree and pin muxing information to da850-evm. Also, add OF_DEV_AUXDATA for I2C0 controller driver in da850 board dt file to use I2C0 clock. Verified i2c0 node gets created in sys class interface as "/sys/class/i2c-dev/i2c-0/subsystem/i2c-0". nsekhar@ti.com: tested using i2cdetect and i2cdump. Signed-off-by: Vishwanathrao Badarkhe, Manish Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/da8xx-dt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-davinci') diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index 37c27af18fa0..a1731f0f5b97 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -37,11 +37,17 @@ static void __init da8xx_init_irq(void) of_irq_init(da8xx_irq_match); } +struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL), + {} +}; + #ifdef CONFIG_ARCH_DAVINCI_DA850 static void __init da850_init_machine(void) { - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + of_platform_populate(NULL, of_default_bus_match_table, + da850_auxdata_lookup, NULL); da8xx_uart_clk_enable(); } -- cgit v1.2.3 From 518f97dbb8d047f54c9f9f9b970fb42e1a6c8184 Mon Sep 17 00:00:00 2001 From: "Kumar, Anil" Date: Wed, 6 Feb 2013 09:30:03 +0530 Subject: ARM: davinci: da850: add wdt DT node Add da850 wdt DT node. Add OF_DEV_AUXDATA for wdt driver to use wdt clock. Signed-off-by: Kumar, Anil Signed-off-by: Sekhar Nori --- arch/arm/boot/dts/da850-evm.dts | 3 +++ arch/arm/boot/dts/da850.dtsi | 5 +++++ arch/arm/mach-davinci/da8xx-dt.c | 1 + 3 files changed, 9 insertions(+) (limited to 'arch/arm/mach-davinci') diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts index 0060903b2b78..f712fb607a42 100644 --- a/arch/arm/boot/dts/da850-evm.dts +++ b/arch/arm/boot/dts/da850-evm.dts @@ -36,6 +36,9 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c0_pins>; }; + wdt: wdt@1c21000 { + status = "okay"; + }; }; nand_cs3@62000000 { status = "okay"; diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi index 9669e80cbada..3ec1bda64356 100644 --- a/arch/arm/boot/dts/da850.dtsi +++ b/arch/arm/boot/dts/da850.dtsi @@ -102,6 +102,11 @@ #size-cells = <0>; status = "disabled"; }; + wdt: wdt@1c21000 { + compatible = "ti,davinci-wdt"; + reg = <0x21000 0x1000>; + status = "disabled"; + }; }; nand_cs3@62000000 { compatible = "ti,davinci-nand"; diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index a1731f0f5b97..5404e92aeb1a 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -39,6 +39,7 @@ static void __init da8xx_init_irq(void) struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL), + OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL), {} }; -- cgit v1.2.3 From 19c7c0d81a9b1fe7342d0208b629b5e085e4f3ae Mon Sep 17 00:00:00 2001 From: "Kumar, Anil" Date: Wed, 6 Feb 2013 09:30:04 +0530 Subject: ARM: davinci: da850 DT: add support for machine reboot Update the da8xx_restart() function to support machine reboot when booting using DT. Have the function search for the watchdog platform device instead of always using "da8xx_wdt_device" which is never registered in DT case. While at it, also make da8xx_wdt_device static since there is no need for it to be globally visible. Tested machine reboot with both DT and non-DT boot on DA850 EVM. Signed-off-by: Kumar, Anil Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/devices-da8xx.c | 12 ++++++++++-- arch/arm/mach-davinci/include/mach/da8xx.h | 1 - 2 files changed, 10 insertions(+), 3 deletions(-) (limited to 'arch/arm/mach-davinci') diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 2d5502d84a22..cc6916dc4629 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -359,7 +359,7 @@ static struct resource da8xx_watchdog_resources[] = { }, }; -struct platform_device da8xx_wdt_device = { +static struct platform_device da8xx_wdt_device = { .name = "watchdog", .id = -1, .num_resources = ARRAY_SIZE(da8xx_watchdog_resources), @@ -368,7 +368,15 @@ struct platform_device da8xx_wdt_device = { void da8xx_restart(char mode, const char *cmd) { - davinci_watchdog_reset(&da8xx_wdt_device); + struct device *dev; + + dev = bus_find_device_by_name(&platform_bus_type, NULL, "watchdog"); + if (!dev) { + pr_err("%s: failed to find watchdog device\n", __func__); + return; + } + + davinci_watchdog_reset(to_platform_device(dev)); } int __init da8xx_register_watchdog(void) diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 700d311c6854..ef9f70ea30a0 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -112,7 +112,6 @@ extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata; extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata; extern struct davinci_spi_platform_data da8xx_spi_pdata[]; -extern struct platform_device da8xx_wdt_device; extern const short da830_emif25_pins[]; extern const short da830_spi0_pins[]; -- cgit v1.2.3