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linux/arch/arm/boot/dts/exynos4210-origen.dts
Tushar Behera 67ddd05382 ARM: dts: Update display clock frequency for Origen-4210 
As per the timing information for supported panel, the value should
be between 47.2 MHz to 47.9 MHz for 60Hz refresh rate.

Total horizontal pixels = 1024 (x-res) + 80 (margin) + 48 (hsync) = 1152
Total vertical pixels = 600 (y-res) + 80 (margin) + 3 (vsync) = 683

Target pixel clock rate for refresh rate @60 Hz
	= 1152 * 683 * 60 = 47208960 Hz ~ 47.5 MHz

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-16 04:41:56 +09:00

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/*
* Samsung's Exynos4210 based Origen board device tree source
*
* Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
* Copyright (c) 2010-2011 Linaro Ltd.
* www.linaro.org
*
* Device tree source file for Insignal's Origen 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 = "Insignal Origen evaluation board based on Exynos4210";
compatible = "insignal,origen", "samsung,exynos4210";
memory {
reg = <0x40000000 0x10000000
0x50000000 0x10000000
0x60000000 0x10000000
0x70000000 0x10000000>;
};
chosen {
bootargs ="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC2,115200 init=/linuxrc";
};
regulators {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
mmc_reg: regulator@0 {
compatible = "regulator-fixed";
reg = <0>;
regulator-name = "VMEM_VDD_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
gpio = <&gpx1 1 0>;
enable-active-high;
};
};
tmu@100C0000 {
status = "okay";
};
sdhci@12530000 {
bus-width = <4>;
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>;
pinctrl-names = "default";
vmmc-supply = <&mmc_reg>;
status = "okay";
};
sdhci@12510000 {
bus-width = <4>;
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_cd>;
pinctrl-names = "default";
vmmc-supply = <&mmc_reg>;
status = "okay";
};
g2d@12800000 {
status = "okay";
};
codec@13400000 {
samsung,mfc-r = <0x43000000 0x800000>;
samsung,mfc-l = <0x51000000 0x800000>;
status = "okay";
};
serial@13800000 {
status = "okay";
};
serial@13810000 {
status = "okay";
};
serial@13820000 {
status = "okay";
};
serial@13830000 {
status = "okay";
};
i2c@13860000 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <20000>;
pinctrl-0 = <&i2c0_bus>;
pinctrl-names = "default";
max8997_pmic@66 {
compatible = "maxim,max8997-pmic";
reg = <0x66>;
interrupt-parent = <&gpx0>;
interrupts = <4 0>, <3 0>;
max8997,pmic-buck1-dvs-voltage = <1350000>;
max8997,pmic-buck2-dvs-voltage = <1100000>;
max8997,pmic-buck5-dvs-voltage = <1200000>;
regulators {
ldo1_reg: LDO1 {
regulator-name = "VDD_ABB_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
ldo2_reg: LDO2 {
regulator-name = "VDD_ALIVE_1.1V";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "VMIPI_1.1V";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
};
ldo4_reg: LDO4 {
regulator-name = "VDD_RTC_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo6_reg: LDO6 {
regulator-name = "VMIPI_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo7_reg: LDO7 {
regulator-name = "VDD_AUD_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
ldo8_reg: LDO8 {
regulator-name = "VADC_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
ldo9_reg: LDO9 {
regulator-name = "DVDD_SWB_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
};
ldo10_reg: LDO10 {
regulator-name = "VDD_PLL_1.1V";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
};
ldo11_reg: LDO11 {
regulator-name = "VDD_AUD_3V";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
};
ldo14_reg: LDO14 {
regulator-name = "AVDD18_SWB_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo17_reg: LDO17 {
regulator-name = "VDD_SWB_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo21_reg: LDO21 {
regulator-name = "VDD_MIF_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
};
buck1_reg: BUCK1 {
/*
* HACK: The real name is VDD_ARM_1.2V,
* but exynos-cpufreq does not support
* DT-based regulator lookup yet.
*/
regulator-name = "vdd_arm";
regulator-min-microvolt = <950000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
};
buck2_reg: BUCK2 {
regulator-name = "VDD_INT_1.1V";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
regulator-boot-on;
};
buck3_reg: BUCK3 {
regulator-name = "VDD_G3D_1.1V";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1100000>;
};
buck5_reg: BUCK5 {
regulator-name = "VDDQ_M1M2_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
};
buck7_reg: BUCK7 {
regulator-name = "VDD_LCD_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
gpio_keys {
compatible = "gpio-keys";
#address-cells = <1>;
#size-cells = <0>;
up {
label = "Up";
gpios = <&gpx2 0 1>;
linux,code = <103>;
gpio-key,wakeup;
};
down {
label = "Down";
gpios = <&gpx2 1 1>;
linux,code = <108>;
gpio-key,wakeup;
};
back {
label = "Back";
gpios = <&gpx1 7 1>;
linux,code = <158>;
gpio-key,wakeup;
};
home {
label = "Home";
gpios = <&gpx1 6 1>;
linux,code = <102>;
gpio-key,wakeup;
};
menu {
label = "Menu";
gpios = <&gpx1 5 1>;
linux,code = <139>;
gpio-key,wakeup;
};
};
leds {
compatible = "gpio-leds";
status {
gpios = <&gpx1 3 1>;
linux,default-trigger = "heartbeat";
};
};
fixed-rate-clocks {
xxti {
compatible = "samsung,clock-xxti";
clock-frequency = <0>;
};
xusbxti {
compatible = "samsung,clock-xusbxti";
clock-frequency = <24000000>;
};
};
fimd@11c00000 {
pinctrl-0 = <&lcd_en &lcd_clk &lcd_data24 &pwm0_out>;
pinctrl-names = "default";
status = "okay";
};
display-timings {
native-mode = <&timing0>;
timing0: timing {
clock-frequency = <47500000>;
hactive = <1024>;
vactive = <600>;
hfront-porch = <64>;
hback-porch = <16>;
hsync-len = <48>;
vback-porch = <64>;
vfront-porch = <16>;
vsync-len = <3>;
};
};
};
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