From 7a62ac0447f48306eec29d409002abc6f22827d9 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 17 Jan 2012 15:07:00 +0100 Subject: [PATCH 3/3] S3C2416: add basic devictree support Signed-off-by: Heiko Stuebner --- arch/arm/boot/dts/s3c2416.dtsi | 192 +++++++++++++++++++++++++++++++ arch/arm/mach-s3c2416/mach-s3c2416-dt.c | 90 ++++++++++++++ 2 files changed, 282 insertions(+), 0 deletions(-) create mode 100644 arch/arm/boot/dts/s3c2416.dtsi create mode 100644 arch/arm/mach-s3c2416/mach-s3c2416-dt.c diff --git a/arch/arm/boot/dts/s3c2416.dtsi b/arch/arm/boot/dts/s3c2416.dtsi new file mode 100644 index 0000000..76cc0b2 --- /dev/null +++ b/arch/arm/boot/dts/s3c2416.dtsi @@ -0,0 +1,192 @@ +/* + * Samsung's S3C2416 SoC device tree source + * + * Copyright (c) 2012 Heiko Stuebner + * + * based on exynos4210.dtsi + * + * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2010-2011 Linaro Ltd. + * www.linaro.org + * + * Samsung's Exynos4210 SoC device nodes are listed in this file. Exynos4210 + * based board files can include this file and provide values for board specfic + * bindings. + * + * Note: This file does not include device nodes for all the controllers in + * Exynos4210 SoC. As device tree coverage for Exynos4210 increases, additional + * nodes can be added to this file. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +/include/ "skeleton.dtsi" + +/ { + compatible = "samsung,s3c2416"; +/* interrupt-parent = <&gic>; FIXME*/ + +/* gic:interrupt-controller@10490000 { + compatible = "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + interrupt-controller; + reg = <0x10490000 0x1000>, <0x10480000 0x100>; + }; FIXME*/ + + /* necessary? */ + cpus { + cpu@0 { + compatible = "arm,arm926ejs"; + } + }, + + watchdog@53000000 { + compatible = "samsung,s3c2410-wdt"; + reg = <0x53000000 0x100>; + interrupts = <25>; + }; + + rtc@57000000 { + compatible = "samsung,s3c2416-rtc"; + reg = <0x57000000 0x100>; + interrupts = <46>, <24>; + }; + + /* hsmmc0 */ + sdhci@4AC00000 { + compatible = "samsung,s3c-sdhci"; + reg = <0x4AC00000 0x100>; + interrupts = <37>; + }; + + /* hsmmc1 */ + sdhci@4A800000 { + compatible = "samsung,s3c-sdhci"; + reg = <0x4A800000 0x100>; + interrupts = <36>; + }; + + /* uart0 */ + serial@13800000 { + compatible = "samsung,s3c2440-uart"; + reg = <0x50000000 0x3fff>; + interrupts = <70>; + }; + + /* uart1 */ + serial@13810000 { + compatible = "samsung,s3c2440-uart"; + reg = <0x50004000 0x3fff>; + interrupts = <73>; + }; + + /* uart2 */ + serial@13820000 { + compatible = "samsung,s3c2440-uart"; + reg = <0x50008000 0x3fff>; + interrupts = <76>; + }; + + /* uart3 */ + serial@13820000 { + compatible = "samsung,s3c2440-uart"; + reg = <0x5000C000 0x3fff>; + interrupts = <94>; + }; + + i2c@54000000 { + compatible = "samsung,s3c2440-i2c"; + reg = <0x54000000 0x100>; + interrupts = <43>; + }; + + /* only on s3c2450 */ + i2c@54000100 { + compatible = "samsung,s3c2440-i2c"; + reg = <0x54000100 0x100>; + interrupts = <100>; + }; + + gpio-controllers { + #address-cells = <1>; + #size-cells = <1>; + gpio-controller; + ranges; + + gpa: gpio-controller@56000000 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000000 0x10>; + #gpio-cells = <3>; + }; + + gpb: gpio-controller@56000010 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000010 0x10>; + #gpio-cells = <3>; + }; + + gpc: gpio-controller@56000020 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000020 0x10>; + #gpio-cells = <3>; + }; + + gpd: gpio-controller@56000030 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000030 0x10>; + #gpio-cells = <3>; + }; + + gpe: gpio-controller@56000040 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000040 0x10>; + #gpio-cells = <3>; + }; + + gpf: gpio-controller@56000050 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000050 0x10>; + #gpio-cells = <3>; + }; + + gpg: gpio-controller@56000060 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000060 0x10>; + #gpio-cells = <3>; + }; + + gph: gpio-controller@56000070 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000070 0x10>; + #gpio-cells = <3>; + }; + + /* s3c2443 and later */ + gpj: gpio-controller@560000D0 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x560000D0 0x10>; + #gpio-cells = <3>; + }; + + gpk: gpio-controller@560000E0 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x560000E0 0x10>; + #gpio-cells = <3>; + }; + + gpl: gpio-controller@560000F0 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x560000F0 0x10>; + #gpio-cells = <3>; + }; + + gpm: gpio-controller@56000100 { + compatible = "samsung,s3c24xx-gpio"; + reg = <0x56000100 0x10>; + #gpio-cells = <3>; + }; + }; +}; diff --git a/arch/arm/mach-s3c2416/mach-s3c2416-dt.c b/arch/arm/mach-s3c2416/mach-s3c2416-dt.c new file mode 100644 index 0000000..7415bee --- /dev/null +++ b/arch/arm/mach-s3c2416/mach-s3c2416-dt.c @@ -0,0 +1,90 @@ +/* + * Samsung's S3C2416 flattened device tree enabled machine + * + * Copyright (c) 2012 Heiko Stuebner + * + * based on mach-exynos/mach-exynos4-dt.c + * + * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2010-2011 Linaro Ltd. + * www.linaro.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include + +#include +#include + +//#include +//#include +//#include + +/* + * The following lookup table is used to override device names when devices + * are registered from device tree. This is temporarily added to enable + * device tree support addition for the Exynos4 architecture. + * + * For drivers that require platform data to be provided from the machine + * file, a platform data pointer can also be supplied along with the + * devices names. Usually, the platform data elements that cannot be parsed + * from the device tree by the drivers (example: function pointers) are + * supplied. But it should be noted that this is a temporary mechanism and + * at some point, the drivers should be capable of parsing all the platform + * data from the device tree. + */ +static const struct of_dev_auxdata s3c2416_auxdata_lookup[] __initconst = { +/* OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART0, + "exynos4210-uart.0", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART1, + "exynos4210-uart.1", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART2, + "exynos4210-uart.2", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART3, + "exynos4210-uart.3", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(0), + "exynos4-sdhci.0", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(1), + "exynos4-sdhci.1", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(2), + "exynos4-sdhci.2", NULL), + OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(3), + "exynos4-sdhci.3", NULL), + OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(0), + "s3c2440-i2c.0", NULL), + OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL), + OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL),*/ + {}, +}; + +static void __init s3c2416_dt_map_io(void) +{ + s3c24xx_init_io(NULL, 0); + s3c24xx_init_clocks(12000000); + s3c24xx_init_uarts(smdk2416_uartcfgs, ARRAY_SIZE(smdk2416_uartcfgs)); +} + +static void __init s3c2416_dt_machine_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, + s3c2416_auxdata_lookup, NULL); +} + +static char const *s3c2416_dt_compat[] __initdata = { + "samsung,s3c2416", + NULL +}; + +DT_MACHINE_START(S3C2416_DT, "Samsung S3C2416 (Flattened Device Tree)") + /* Maintainer: Heiko Stuebner */ + .init_irq = s3c24xx_init_irq, + .map_io = s3c2416_dt_map_io, + .init_machine = s3c2416_dt_machine_init, + .timer = &s3c24xx_timer, + .dt_compat = s3c2416_dt_compat, +MACHINE_END -- 1.7.5.4