[PATCH 6/6] ARM: Exynos: Add basic dts file for Samsung Trats board
Thomas Abraham
thomas.abraham at linaro.org
Fri Aug 31 00:24:20 EDT 2012
On 30 August 2012 13:01, Tomasz Figa <t.figa at samsung.com> wrote:
> This commit adds basic device tree for Exynos4210-based Trats board.
>
> Currently it provides support for eMMC over sdhci and MAX8997 PMIC.
>
> Signed-off-by: Tomasz Figa <t.figa at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> ---
> arch/arm/boot/dts/exynos4210-trats.dts | 287 +++++++++++++++++++++++++++++++++
> arch/arm/mach-exynos/Makefile.boot | 2 +-
> 2 files changed, 288 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boot/dts/exynos4210-trats.dts
>
> diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
> new file mode 100644
> index 0000000..a9cd2d0
> --- /dev/null
> +++ b/arch/arm/boot/dts/exynos4210-trats.dts
> @@ -0,0 +1,287 @@
> +/*
> + * Samsung's Exynos4210 based Trats board device tree source
> + *
> + * Copyright (c) 2012 Samsung Electronics Co., Ltd.
> + * http://www.samsung.com
> + *
> + * Device tree source file for Samsung's Trats board which is based on
> + * Samsung's Exynos4210 SoC.
> + *
> + * 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.
> +*/
> +
> +/dts-v1/;
> +/include/ "exynos4210.dtsi"
> +
> +/ {
> + model = "Samsung Trats based on Exynos4210";
> + compatible = "samsung,trats", "samsung,exynos4210";
> +
> + memory {
> + reg = <0x40000000 0x20000000
> + 0x60000000 0x20000000>;
> + };
> +
> + chosen {
> + bootargs = "console=ttySAC2,115200N8 root=/dev/mmcblk0p5 rootwait earlyprintk panic=5";
> + };
> +
> + wakeup_eint: interrupt-controller-wakeup-eint {
> + compatible = "samsung,exynos4210-wakeup-eint";
> + reg = <0x11000000 0x1000>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + interrupts = <0 16 0>, <0 17 0>, <0 18 0>, <0 19 0>,
> + <0 20 0>, <0 21 0>, <0 22 0>, <0 23 0>,
> + <0 24 0>, <0 25 0>, <0 26 0>, <0 27 0>,
> + <0 28 0>, <0 29 0>, <0 30 0>, <0 31 0>,
> + <0 32 0>;
> + };
The external wakeup node should be in the exynos4.dtsi file since this
is common across all Exynos4 SoC's. Besides, the device tree support
patches for wakeup-interrupts is not being pursed anymore, since it is
now handled in pinctrl driver itself. So it would be better not to
include this node.
> +
> + vemmc_reg: voltage-regulator at 0 {
> + compatible = "regulator-fixed";
> + regulator-name = "VMEM_VDD_2.8V";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + gpio = <&gpk0 2 1 0 0>;
> + };
> +
> + sdhci_emmc: sdhci at 12510000 {
> + bus-width = <8>;
> + non-removable;
> + gpios = <&gpk0 0 2 0 3>,
> + <&gpk0 1 2 0 3>,
> + <&gpk0 3 2 2 3>,
> + <&gpk0 4 2 2 3>,
> + <&gpk0 5 2 2 3>,
> + <&gpk0 6 2 2 3>,
> + <&gpk1 3 3 3 3>,
> + <&gpk1 4 3 3 3>,
> + <&gpk1 5 3 3 3>,
> + <&gpk1 6 3 3 3>;
> + vmmc-supply = &vemmc_reg;
> + };
> +
> + i2c at 138B0000 {
> + samsung,i2c-sda-delay = <100>;
> + samsung,i2c-slave-addr = <0x10>;
> + samsung,i2c-max-bus-freq = <100000>;
> + gpios = <&gpb 6 3 3 0>,
> + <&gpb 7 3 3 0>;
> +
> + max8997_pmic at 66 {
> + compatible = "maxim,max8997-pmic";
> + interrupt-parent = <&wakeup_eint>;
> +
> + reg = <0x66>;
> + interrupts = <4 0>, <3 0>;
> +
> + max8997,pmic-buck1-uses-gpio-dvs;
> + max8997,pmic-buck2-uses-gpio-dvs;
> + max8997,pmic-buck5-uses-gpio-dvs;
> +
> + max8997,pmic-ignore-gpiodvs-side-effect;
> + max8997,pmic-buck125-default-dvs-idx = <0>;
> +
> + max8997,pmic-buck125-dvs-gpios = <&gpx0 5 1 0 0>,
> + <&gpx0 6 1 0 0>,
> + <&gpl0 0 1 0 0>;
> +
> + max8997,pmic-buck1-dvs-voltage = <1350000>, <1300000>,
> + <1250000>, <1200000>,
> + <1150000>, <1100000>,
> + <1000000>, <950000>;
> +
> + max8997,pmic-buck2-dvs-voltage = <1100000>, <1000000>,
> + <950000>, <900000>,
> + <1100000>, <1000000>,
> + <950000>, <900000>;
> +
> + max8997,pmic-buck5-dvs-voltage = <1200000>, <1200000>,
> + <1200000>, <1200000>,
> + <1200000>, <1200000>,
> + <1200000>, <1200000>;
> +
> + regulators {
> + valive_reg: LDO2 {
> + regulator-name = "VALIVE_1.1V_C210";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-always-on;
> + };
> +
> + vusb_reg: LDO3 {
> + regulator-name = "VUSB_1.1V_C210";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + };
> +
> + vmipi_reg: LDO4 {
> + regulator-name = "VMIPI_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vpda_reg: LDO6 {
> + regulator-name = "VCC_1.8V_PDA";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + vcam_reg: LDO7 {
> + regulator-name = "CAM_ISP_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vusbdac_reg: LDO8 {
> + regulator-name = "VUSB/VDAC_3.3V_C210";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + vccpda_reg: LDO9 {
> + regulator-name = "VCC_2.8V_PDA";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-always-on;
> + };
> +
> + vpll_reg: LDO10 {
> + regulator-name = "VPLL_1.1V_C210";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-always-on;
> + };
> +
> + vcclcd_reg: LDO13 {
> + regulator-name = "VCC_3.3V_LCD";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + vlcd_reg: LDO15 {
> + regulator-name = "VLCD_2.2V";
> + regulator-min-microvolt = <2200000>;
> + regulator-max-microvolt = <2200000>;
> + };
> +
> + camsensor_reg: LDO16 {
> + regulator-name = "CAM_SENSOR_IO_1.8V";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + vddq_reg: LDO21 {
> + regulator-name = "VDDQ_M1M2_1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> +
> + varm_breg: BUCK1 {
> + regulator-name = "VARM_1.2V_C210";
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <1350000>;
> + regulator-always-on;
> + };
> +
> + vint_breg: BUCK2 {
> + regulator-name = "VINT_1.1V_C210";
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <1100000>;
> + regulator-always-on;
> + };
> +
> + camisp_breg: BUCK4 {
> + regulator-name = "CAM_ISP_CORE_1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> + vmem_breg: BUCK5 {
> + regulator-name = "VMEM_1.2V_C210";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> + };
> +
> + vccsub_breg: BUCK7 {
> + regulator-name = "VCC_SUB_2.0V";
> + regulator-min-microvolt = <2000000>;
> + regulator-max-microvolt = <2000000>;
> + regulator-always-on;
> + };
> +
> + safe1_sreg: ESAFEOUT1 {
> + regulator-name = "SAFEOUT1";
> + regulator-always-on;
> + };
> +
> + safe2_sreg: ESAFEOUT2 {
> + regulator-name = "SAFEOUT2";
> + regulator-boot-on;
> + };
> + };
> + };
> + };
> +
> + keypad at 100A0000 {
> + status = "disabled";
> + };
> +
> + sdhci at 12520000 {
> + status = "disabled";
> + };
> +
> + sdhci at 12530000 {
> + status = "disabled";
> + };
> +
> + sdhci at 12540000 {
> + status = "disabled";
> + };
> +
> + i2c at 13860000 {
> + status = "disabled";
> + };
> +
> + i2c at 13870000 {
> + status = "disabled";
> + };
> +
> + i2c at 13880000 {
> + status = "disabled";
> + };
> +
> + i2c at 13890000 {
> + status = "disabled";
> + };
> +
> + i2c at 138A0000 {
> + status = "disabled";
> + };
> +
> + i2c at 138C0000 {
> + status = "disabled";
> + };
> +
> + i2c at 138D0000 {
> + status = "disabled";
> + };
> +
> + spi_0: spi at 13920000 {
> + status = "disabled";
> + };
> +
> + spi_1: spi at 13930000 {
> + status = "disabled";
> + };
> +
> + spi_2: spi at 13940000 {
> + status = "disabled";
> + };
> +};
If we choose to mark the nodes in dtsi files as "disabled" then we can
avoid these here.
> diff --git a/arch/arm/mach-exynos/Makefile.boot b/arch/arm/mach-exynos/Makefile.boot
> index 31bd181..a79d999 100644
> --- a/arch/arm/mach-exynos/Makefile.boot
> +++ b/arch/arm/mach-exynos/Makefile.boot
> @@ -1,5 +1,5 @@
> zreladdr-y += 0x40008000
> params_phys-y := 0x40000100
>
> -dtb-$(CONFIG_MACH_EXYNOS4_DT) += exynos4210-origen.dtb exynos4210-smdkv310.dtb
> +dtb-$(CONFIG_MACH_EXYNOS4_DT) += exynos4210-origen.dtb exynos4210-smdkv310.dtb exynos4210-trats.dtb
> dtb-$(CONFIG_MACH_EXYNOS5_DT) += exynos5250-smdk5250.dtb
> --
> 1.7.12
>
The rest of the additions looks fine.
Reviewed-by: Thomas Abraham <thomas.abraham at linaro.org>
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