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alistair23-linux/arch/arm/boot/dts/exynos5422-odroidxu3.dts
Javier Martinez Canillas af6ad88acb ARM: dts: Mux XMMCnDATA[0] pad correctly for Exynos5420 boards 
The Exynos5420 SoC has 3 sets of 8 pads used as data lines for the 3
MMC/SD/SDIO slots. These needs to be muxed as SD_n_DATA instead of a
GPIO or external interrupt to allow the MMC controller to communicate
with the attached cards or SDIO devices.

Which data lines needs to be muxed as SD_n_DATA depends on the bus
width used for data transfer:

* bus-width = <1> needs SD_n_DATA[0]
* bus-width = <4> needs SD_n_DATA[0-3]
* bus-width = <8> needs SD_n_DATA[0-7]

The Exynos5250-pinctrl.dtsi file that defines the groups of pins has
SD_n_DATA[0] muxed for both sdn_bus1 and sdn_bus4 so just one of them
needs to be included in the device node's pinctrl property.

But Exynos5420-pinctrl has a different definition and only includes
SD_n_DATA[1-3] for sdn_bus4. So for a bus-width = <4>, both sdn_bus1
and sdn_bus4 have to be in the dev pinctrl to mux all the needed pads.

It seems all Exynos5420 boards had just cargo cult the pinctrl lines
assuming that sdn_bus4 also included SD_n_DATA[0] and it only works
because the bootloader muxes the pads correctly. But that is not the
case for the devices not used by the bootloader such as WiFi modules.

Add sdn_bus1 too in the nodes pinctrl to not rely on the bootloader.

Suggested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-02-27 06:08:51 +09:00

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/*
* Hardkernel Odroid XU3 board device tree source
*
* Copyright (c) 2014 Collabora Ltd.
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* 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 "exynos5800.dtsi"
/ {
model = "Hardkernel Odroid XU3";
compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5";
memory {
reg = <0x40000000 0x7EA00000>;
};
chosen {
linux,stdout-path = &serial_2;
};
fimd@14400000 {
status = "okay";
};
firmware@02073000 {
compatible = "samsung,secure-firmware";
reg = <0x02073000 0x1000>;
};
fixed-rate-clocks {
oscclk {
compatible = "samsung,exynos5420-oscclk";
clock-frequency = <24000000>;
};
};
hsi2c_4: i2c@12CA0000 {
status = "okay";
s2mps11_pmic@66 {
compatible = "samsung,s2mps11-pmic";
reg = <0x66>;
s2mps11,buck2-ramp-delay = <12>;
s2mps11,buck34-ramp-delay = <12>;
s2mps11,buck16-ramp-delay = <12>;
s2mps11,buck6-ramp-enable = <1>;
s2mps11,buck2-ramp-enable = <1>;
s2mps11,buck3-ramp-enable = <1>;
s2mps11,buck4-ramp-enable = <1>;
s2mps11_osc: clocks {
#clock-cells = <1>;
clock-output-names = "s2mps11_ap",
"s2mps11_cp", "s2mps11_bt";
};
regulators {
ldo1_reg: LDO1 {
regulator-name = "vdd_ldo1";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "vdd_ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo5_reg: LDO5 {
regulator-name = "vdd_ldo5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo6_reg: LDO6 {
regulator-name = "vdd_ldo6";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo7_reg: LDO7 {
regulator-name = "vdd_ldo7";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo8_reg: LDO8 {
regulator-name = "vdd_ldo8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo9_reg: LDO9 {
regulator-name = "vdd_ldo9";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
};
ldo10_reg: LDO10 {
regulator-name = "vdd_ldo10";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo11_reg: LDO11 {
regulator-name = "vdd_ldo11";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo12_reg: LDO12 {
regulator-name = "vdd_ldo12";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo13_reg: LDO13 {
regulator-name = "vdd_ldo13";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
};
ldo15_reg: LDO15 {
regulator-name = "vdd_ldo15";
regulator-min-microvolt = <3100000>;
regulator-max-microvolt = <3100000>;
regulator-always-on;
};
ldo16_reg: LDO16 {
regulator-name = "vdd_ldo16";
regulator-min-microvolt = <2200000>;
regulator-max-microvolt = <2200000>;
regulator-always-on;
};
ldo17_reg: LDO17 {
regulator-name = "tsp_avdd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo19_reg: LDO19 {
regulator-name = "vdd_sd";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
};
ldo24_reg: LDO24 {
regulator-name = "tsp_io";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
};
ldo26_reg: LDO26 {
regulator-name = "vdd_ldo26";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
};
buck1_reg: BUCK1 {
regulator-name = "vdd_mif";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1300000>;
regulator-always-on;
regulator-boot-on;
};
buck2_reg: BUCK2 {
regulator-name = "vdd_arm";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
};
buck3_reg: BUCK3 {
regulator-name = "vdd_int";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1400000>;
regulator-always-on;
regulator-boot-on;
};
buck4_reg: BUCK4 {
regulator-name = "vdd_g3d";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1400000>;
regulator-always-on;
regulator-boot-on;
};
buck5_reg: BUCK5 {
regulator-name = "vdd_mem";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1400000>;
regulator-always-on;
regulator-boot-on;
};
buck6_reg: BUCK6 {
regulator-name = "vdd_kfc";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
};
buck7_reg: BUCK7 {
regulator-name = "vdd_1.0v_ldo";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
};
buck8_reg: BUCK8 {
regulator-name = "vdd_1.8v_ldo";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
};
buck9_reg: BUCK9 {
regulator-name = "vdd_2.8v_ldo";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3750000>;
regulator-always-on;
regulator-boot-on;
};
buck10_reg: BUCK10 {
regulator-name = "vdd_vmem";
regulator-min-microvolt = <2850000>;
regulator-max-microvolt = <2850000>;
regulator-always-on;
regulator-boot-on;
};
};
};
};
emmc_pwrseq: pwrseq {
pinctrl-0 = <&emmc_nrst_pin>;
pinctrl-names = "default";
compatible = "mmc-pwrseq-emmc";
reset-gpios = <&gpd1 0 1>;
};
i2c_2: i2c@12C80000 {
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
status = "okay";
hdmiddc@50 {
compatible = "samsung,exynos4210-hdmiddc";
reg = <0x50>;
};
};
rtc@101E0000 {
status = "okay";
};
};
&hdmi {
status = "okay";
hpd-gpio = <&gpx3 7 0>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
vdd_osc-supply = <&ldo7_reg>;
vdd_pll-supply = <&ldo6_reg>;
vdd-supply = <&ldo6_reg>;
};
&mfc {
samsung,mfc-r = <0x43000000 0x800000>;
samsung,mfc-l = <0x51000000 0x800000>;
};
&mmc_0 {
status = "okay";
mmc-pwrseq = <&emmc_pwrseq>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <0 4>;
samsung,dw-mshc-ddr-timing = <0 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>;
bus-width = <8>;
cap-mmc-highspeed;
};
&mmc_2 {
status = "okay";
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <0 4>;
samsung,dw-mshc-ddr-timing = <0 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus1 &sd2_bus4>;
bus-width = <4>;
cap-sd-highspeed;
};
&pinctrl_0 {
hdmi_hpd_irq: hdmi-hpd-irq {
samsung,pins = "gpx3-7";
samsung,pin-function = <0>;
samsung,pin-pud = <1>;
samsung,pin-drv = <0>;
};
};
&pinctrl_1 {
emmc_nrst_pin: emmc-nrst {
samsung,pins = "gpd1-0";
samsung,pin-function = <0>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
};
&usbdrd_dwc3_0 {
dr_mode = "host";
};
&usbdrd_dwc3_1 {
dr_mode = "otg";
};
&i2c_0 {
status = "okay";
/* A15 cluster: VDD_ARM */
ina231@40 {
compatible = "ti,ina231";
reg = <0x40>;
shunt-resistor = <10000>;
};
/* memory: VDD_MEM */
ina231@41 {
compatible = "ti,ina231";
reg = <0x41>;
shunt-resistor = <10000>;
};
/* GPU: VDD_G3D */
ina231@44 {
compatible = "ti,ina231";
reg = <0x44>;
shunt-resistor = <10000>;
};
/* A7 cluster: VDD_KFC */
ina231@45 {
compatible = "ti,ina231";
reg = <0x45>;
shunt-resistor = <10000>;
};
};
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