| Message ID | 20220113154019.74434-4-henrik@grimler.se (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add initial support for exynos5420-chagallwifi | expand |
On 13/01/2022 16:40, Henrik Grimler wrote: > Chagallwifi, with product name Samsung Galaxy Tab S 10.5", is based on > Exynos 5420. This device is one of several tablet models released in > 2013 - 2014 based on Exynos 5420. > > The device tree added here contains support for: > > - UART > - eMMC > - SD card > - USB > Thanks for the patches. It is a really nice work, good job! Some comments below. > CCI has been disabled in the hardware, enabling it would require > (de-)soldering a resistor on the board. Trying to boot with it > enabled in kernel makes the device hang when CCI is probed. > Exynos5420-arndale-octa also has had CCI disabled due to issues [1]. > > To successfully boot the mainline kernel with the stock bootloader > (SBOOT), an additional hack is needed [2]. The same hack is also > needed to boot exynos4412-i9300 with stock bootloader, and probably > other Samsung devices of similar age. > > [1] https://marc.info/?l=linux-arm-kernel&m=141718639200624 Commits should use 'commit SHA_12char ("subject")' format instead of links to mailing lists. > [2] https://lore.kernel.org/all/1355276466-18295-1-git-send-email-arve@android.com/ > > Signed-off-by: Henrik Grimler <henrik@grimler.se> > --- > arch/arm/boot/dts/Makefile | 1 + > arch/arm/boot/dts/exynos5420-chagallwifi.dts | 57 ++ > .../dts/exynos5420-galaxy-tab-common.dtsi | 647 ++++++++++++++++++ > 3 files changed, 705 insertions(+) > create mode 100644 arch/arm/boot/dts/exynos5420-chagallwifi.dts > create mode 100644 arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 0de64f237cd8..be7a493ff1a1 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -220,6 +220,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \ > exynos5420-arndale-octa.dtb \ > exynos5420-peach-pit.dtb \ > exynos5420-smdk5420.dtb \ > + exynos5420-chagallwifi.dtb \ The name is something like Chagall WiFi, Chagall-WiFi or other variations, because the device family name is Chagall and WiFi is variant. Therefore here, patch 1/3, the compatible and all names, please make: - exynos5420-chagall-wifi.dtb - "samsung,chagall-wifi" etc. > exynos5422-odroidhc1.dtb \ > exynos5422-odroidxu3.dtb \ > exynos5422-odroidxu3-lite.dtb \ > diff --git a/arch/arm/boot/dts/exynos5420-chagallwifi.dts b/arch/arm/boot/dts/exynos5420-chagallwifi.dts > new file mode 100644 > index 000000000000..51eb2bbe6bf6 > --- /dev/null > +++ b/arch/arm/boot/dts/exynos5420-chagallwifi.dts > @@ -0,0 +1,57 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Samsung's Exynos5420 Chagallwifi board device tree source > + * > + * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd. > + * http://www.samsung.com > + * Copyright (c) 2022 Henrik Grimler > + */ > + > +/dts-v1/; > +#include "exynos5420-galaxy-tab-common.dtsi" Do you plan to have more Galaxy Tab versions? > + > +/ { > + model = "Samsung Chagallwifi based on exynos5420"; "Chagall WiFi"? > + compatible = "samsung,chagallwifi", "samsung,exynos5420", \ > + "samsung,exynos5"; > +}; > + > +&s2mps11 { > + regulators { > + ldo15_reg: LDO15 { Please define these regulator nodes in DTSI (only name needed and comment like you have there) and override them by label (&ldo15_reg { ...). > + /* Unused */ > + regulator-name = "VDD_LDO15"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + }; > + > + ldo17_reg: LDO17 { > + regulator-name = "VDD_IRLED_3V3"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3350000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo28_reg: LDO28 { > + /* Unused */ > + regulator-name = "VDD_LDO28"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + }; > + > + ldo29_reg: LDO29 { > + regulator-name = "VDD_TCON_1V8"; > + regulator-min-microvolt = <1900000>; > + regulator-max-microvolt = <1900000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + }; > +}; > diff --git a/arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi b/arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi > new file mode 100644 > index 000000000000..cbcf1c117b67 > --- /dev/null > +++ b/arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi > @@ -0,0 +1,647 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Base DT for Samsung's family of tablets based on Exynos5420. > + * > + * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd. > + * http://www.samsung.com > + * Copyright (c) 2022 Henrik Grimler > + */ > + > +/dts-v1/; > +#include "exynos5420.dtsi" > +#include "exynos5420-cpus.dtsi" > +#include <dt-bindings/input/input.h> > +#include <dt-bindings/gpio/gpio.h> > +#include <dt-bindings/clock/samsung,s2mps11.h> > + > +/ { > + compatible = "samsung,exynos5420", "samsung,exynos5"; Skip the compatible. It duplicates exynos5420.dtsi and does not bring any more information here. > + chassis-type = "tablet"; > + > + chosen { > + stdout-path = "serial2:115200n8"; > + }; > + > + memory@20000000 { > + device_type = "memory"; > + reg = <0x20000000 0xc0000000>; > + }; > + > + firmware@2073000 { > + compatible = "samsung,secure-firmware"; > + reg = <0x02073000 0x1000>; > + }; > + > + fixed-rate-clocks { > + oscclk { > + compatible = "samsung,exynos5420-oscclk"; > + clock-frequency = <24000000>; > + }; > + > + xxti { > + compatible = "samsung,clock-xxti"; > + clock-frequency = <24000000>; > + }; > + > + xusbxti { > + compatible = "samsung,clock-xusbxti"; > + clock-frequency = <24000000>; > + }; Just keep one clock - oscclk. We treat it as alias of xxti, even though it might not be exactly alias. I am not sure about real differences, but anyway the driver does not care about xxti and xusbxti. xusbxti appears in Exynos5420 only partially, e.g. not in all places like ballmap. Other boards have only oscclk, so let's do the same. > + }; > + > + gpio-keys { > + compatible = "gpio-keys"; > + pinctrl-names = "default"; > + > + power { key-power and so on. > + debounce-interval = <10>; > + gpios = <&gpx2 2 GPIO_ACTIVE_LOW>; > + label = "Power"; > + linux,code = <KEY_POWER>; > + wakeup-source; > + }; > + > + home { > + debounce-interval = <10>; > + gpios = <&gpx0 5 GPIO_ACTIVE_LOW>; > + label = "Home"; > + linux,code = <KEY_HOME>; > + wakeup-source; > + }; > + > + volume-up { > + debounce-interval = <10>; > + gpios = <&gpx0 2 GPIO_ACTIVE_LOW>; > + label = "Volume Up"; > + linux,code = <KEY_VOLUMEUP>; > + }; > + > + volume-down { > + debounce-interval = <10>; > + gpios = <&gpx0 3 GPIO_ACTIVE_LOW>; > + label = "Volume Down"; > + linux,code = <KEY_VOLUMEDOWN>; > + }; > + }; > +}; > + > +&cci { > + /* CCI is disabled in hardware */ > + status = "disabled"; > +}; > + > +&cpu0 { > + cpu-supply = <&buck2_reg>; > +}; > + > +&cpu4 { > + cpu-supply = <&buck6_reg>; > +}; > + > +&gpu { > + status = "okay"; > + mali-supply = <&buck4_reg>; > +}; > + > +&hsi2c_7 { > + status = "okay"; > + > + s2mps11: pmic@66 { > + compatible = "samsung,s2mps11-pmic"; > + reg = <0x66>; > + > + interrupt-parent = <&gpx3>; > + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; > + pinctrl-names = "default"; > + pinctrl-0 = <&s2mps11_irq>; > + > + s2mps11_osc: clocks { > + compatible = "samsung,s2mps11-clk"; > + #clock-cells = <1>; > + clock-output-names = "s2mps11_ap", "s2mps11_cp", > + "s2mps11_bt"; > + }; > + > + buck1_reg: BUCK1 { All regulators should be under node "regulators". It should not work properly without it, e.g. check /sys/kernel/debug/regulator/regulator_summary if values match ones you define. > + regulator-name = "VDD_MIF_1V1"; > + regulator-min-microvolt = <700000>; > + regulator-max-microvolt = <1300000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + regulator-suspend-microvolt = <1100000>; Property is deprecated and I am not sure what is it's purpose since, the regulator is off in suspend. > + }; > + }; > + > + buck2_reg: BUCK2 { > + regulator-name = "VDD_ARM_1V0"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <1500000>; > + regulator-always-on; > + regulator-boot-on; > + regulator-ramp-delay = <12500>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + buck3_reg: BUCK3 { > + regulator-name = "VDD_INT_1V0"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <1400000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + regulator-suspend-microvolt = <1100000>; Same. > + }; > + }; > + > + buck4_reg: BUCK4 { > + regulator-name = "VDD_G3D_1V0"; > + regulator-min-microvolt = <700000>; > + regulator-max-microvolt = <1400000>; > + regulator-always-on; > + regulator-boot-on; > + regulator-ramp-delay = <12500>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + buck5_reg: BUCK5 { > + regulator-name = "VDD_MEM_1V2"; > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <1200000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + buck6_reg: BUCK6 { > + regulator-name = "VDD_KFC_1V0"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <1500000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + buck7_reg: BUCK7 { > + regulator-name = "VIN_LLDO_1V4"; > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <1500000>; > + regulator-always-on; > + }; > + > + buck8_reg: BUCK8 { > + regulator-name = "VIN_MLDO_2V0"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <2100000>; > + regulator-always-on; > + }; > + > + buck9_reg: BUCK9 { > + regulator-name = "VIN_HLDO_3V5"; > + regulator-min-microvolt = <3000000>; > + regulator-max-microvolt = <3500000>; > + regulator-always-on; > + }; > + > + buck10_reg: BUCK10 { > + regulator-name = "VDD_CAM_ISP_1V0"; > + regulator-min-microvolt = <750000>; > + regulator-max-microvolt = <3550000>; > + }; > + > + ldo1_reg: LDO1 { > + regulator-name = "VDD_ALIVE_1.0V"; > + regulator-min-microvolt = <1000000>; > + regulator-max-microvolt = <1000000>; > + regulator-always-on; > + }; > + > + ldo2_reg: LDO2 { > + regulator-name = "VDD_APIO_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + ldo3_reg: LDO3 { > + regulator-name = "VDD_APIO_MMC2_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo4_reg: LDO4 { > + regulator-name = "VDD_ADC_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + ldo5_reg: LDO5 { > + /* Unused */ > + regulato-name = "VDD_LDO5"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + }; > + > + ldo6_reg: LDO6 { > + regulator-name = "VDD_MIPI_1V0"; > + regulator-min-microvolt = <1000000>; > + regulator-max-microvolt = <1000000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo7_reg: LDO7 { > + regulator-name = "VDD_MIPI_PLL_ABB1_18V"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo8_reg: LDO8 { > + /* Unused */ > + regulator-name = "VDD_LDO8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + }; > + > + ldo9_reg: LDO9 { > + regulator-name = "VDD_UOTG_3V0"; > + regulator-min-microvolt = <3000000>; > + regulator-max-microvolt = <3000000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + ldo10_reg: LDO10 { > + regulator-name = "VDDQ_PRE_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + ldo11_reg: LDO11 { > + regulator-name = "VDD_HSIC_1V0"; > + regulator-min-microvolt = <1000000>; > + regulator-max-microvolt = <1000000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + ldo12_reg: LDO12 { > + regulator-name = "VDD_HSIC_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + ldo13_reg: LDO13 { > + regulator-name = "VDD_APIO_MMC2_2V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <2800000>; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo14_reg: LDO14 { > + regulator-name = "VDD_MOTOR_3V0"; > + regulator-min-microvolt = <3000000>; > + regulator-max-microvolt = <3000000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + /* > + * LDO15 varies between devices and is > + * specified in the device dts > + */ Do it like ldo25 in arch/arm/boot/dts/exynos4412-midas.dtsi. Comment is good. > + > + ldo16_reg: LDO16 { > + regulator-name = "VDD_AP_2V8"; > + regulator-min-microvolt = <2800000>; > + regulator-max-microvolt = <2800000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-on-in-suspend; > + }; > + }; > + > + /* > + * LDO17 varies between devices and is > + * specified in the device dts > + */ > + > + ldo18_reg: LDO18 { > + /* Unused */ > + regulator-name = "VDD_LDO18"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + }; > + > + > + ldo19_reg: LDO19 { > + regulator-name = "VDD_VTF_2V8"; > + regulator-min-microvolt = <2800000>; > + regulator-max-microvolt = <2800000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo20_reg: LDO20 { > + regulator-name = "VDD_CAM1_CAM_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo21_reg: LDO21 { > + regulator-name = "VDD_CAM_IO_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo22_reg: LDO22 { > + regulator-name = "VDD_CAM0_S_CORE_1V1"; > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1200000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo23_reg: LDO23 { > + regulator-name = "VDD_MIFS_1V1"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <1100000>; > + regulator-always-on; > + > + regulator-state-mem { > + regulator-on-in-suspend; > + }; > + }; > + > + ldo24_reg: LDO24 { > + regulator-name = "VDD_TSP_3V3"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo25_reg: LDO25 { > + /* Unused */ > + regulator-name = "VDD_LDO25"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3950000>; > + }; > + > + ldo26_reg: LDO26 { > + regulator-name = "VDD_CAM0_AF_2V8"; > + regulator-min-microvolt = <2800000>; > + regulator-max-microvolt = <2800000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo27_reg: LDO27 { > + regulator-name = "VDD_G3DS_1V0"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <1000000>; > + regulator-always-on; > + > + regulator-state-mem { > + regulator-on-in-suspend; > + }; > + }; > + > + /* > + * LDO28 and LDO29 varies between devices and > + * are specified in the device dts > + */ > + > + ldo30_reg: LDO30 { > + regulator-name = "VDD_TOUCH_1V8"; > + regulator-min-microvolt = <1900000>; > + regulator-max-microvolt = <1900000>; Name is 1.8V, voltage is 1.9V. Double check this one :) > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo31_reg: LDO31 { > + regulator-name = "VDD_GRIP_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo32_reg: LDO32 { > + regulator-name = "VDD_TSP_1V8"; > + regulator-min-microvolt = <1900000>; > + regulator-max-microvolt = <1900000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo33_reg: LDO33 { > + regulator-name = "VDD_MHL_1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo34_reg: LDO34 { > + regulator-name = "VDD_MHL_3V3"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo35_reg: LDO35 { > + regulator-name = "VDD_SIL_1V2"; > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <1200000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + ldo36_reg: LDO36 { > + /* Unused */ > + regulator-name = "VDD_LDO36"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3950000>; > + }; > + > + ldo37_reg: LDO37 { > + /* Unused */ > + regulator-name = "VDD_LDO37"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3950000>; > + }; > + > + ldo38_reg: LDO38 { > + regulator-name = "VDD_KEY_LED_3V3"; > + regulator-min-microvolt = <2500000>; > + regulator-max-microvolt = <3300000>; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + }; > +}; > + > +&mixer { > + status = "okay"; > +}; > + > +/* Internal storage */ > +&mmc_0 { > + status = "okay"; > + non-removable; > + 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", "output"; > + clk_pin = &sd0_clk; > + clk_val = <0x3>; I think these two are not supported properties. > + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; > + vmmc-supply = <&ldo3_reg>; > + vqmmc-supply = <&ldo13_reg>; > + bus-width = <8>; > + cap-mmc-highspeed; > + mmc-hs200-1_8v; > +}; > + > +/* External sdcard */ > +&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>; > + bus-width = <4>; > + cap-sd-highspeed; > + sd-uhs-sdr50; You should define here also pins, something like Arndale Octa has. > +}; > + > +&pinctrl_0 { > + s2mps11_irq: s2mps11-irq-pins { > + samsung,pins = "gpx3-2"; > + samsung,pin-function = <EXYNOS_PIN_FUNC_F>; > + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; > + }; > +}; > + Best regards, Krzysztof
Hi Krzysztof, Thanks for the feedback! On Sat, Jan 15, 2022 at 05:34:28PM +0100, Krzysztof Kozlowski wrote: > On 13/01/2022 16:40, Henrik Grimler wrote: > > Chagallwifi, with product name Samsung Galaxy Tab S 10.5", is based on > > Exynos 5420. This device is one of several tablet models released in > > 2013 - 2014 based on Exynos 5420. > > > > The device tree added here contains support for: > > > > - UART > > - eMMC > > - SD card > > - USB > > > > Thanks for the patches. It is a really nice work, good job! > > Some comments below. > > > CCI has been disabled in the hardware, enabling it would require > > (de-)soldering a resistor on the board. Trying to boot with it > > enabled in kernel makes the device hang when CCI is probed. > > Exynos5420-arndale-octa also has had CCI disabled due to issues [1]. > > > > To successfully boot the mainline kernel with the stock bootloader > > (SBOOT), an additional hack is needed [2]. The same hack is also > > needed to boot exynos4412-i9300 with stock bootloader, and probably > > other Samsung devices of similar age. > > > > [1] https://marc.info/?l=linux-arm-kernel&m=141718639200624 > > Commits should use 'commit SHA_12char ("subject")' format instead of > links to mailing lists. Will fix in v3. [ ... ] > > diff --git a/arch/arm/boot/dts/exynos5420-chagallwifi.dts b/arch/arm/boot/dts/exynos5420-chagallwifi.dts > > new file mode 100644 > > index 000000000000..51eb2bbe6bf6 > > --- /dev/null > > +++ b/arch/arm/boot/dts/exynos5420-chagallwifi.dts > > @@ -0,0 +1,57 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Samsung's Exynos5420 Chagallwifi board device tree source > > + * > > + * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd. > > + * http://www.samsung.com > > + * Copyright (c) 2022 Henrik Grimler > > + */ > > + > > +/dts-v1/; > > +#include "exynos5420-galaxy-tab-common.dtsi" > > Do you plan to have more Galaxy Tab versions? Yes. One more ("klimt-wifi") as soon as issues here have been ironed out, and possibly LTE-version(s) later if I actually bring it up to a point where the hardware differences matter for the kernel. I am also hoping that someone else with access to other tablet variants wants to work on addng support for additional models, through the PostmarketOS project. > > + > > +/ { > > + model = "Samsung Chagallwifi based on exynos5420"; > > "Chagall WiFi"? Will change filename and descriptions to something like that. > > + compatible = "samsung,chagallwifi", "samsung,exynos5420", \ > > + "samsung,exynos5"; > > +}; > > + > > +&s2mps11 { > > + regulators { > > + ldo15_reg: LDO15 { > > Please define these regulator nodes in DTSI (only name needed and > comment like you have there) and override them by label (&ldo15_reg { ...). Will do. [ ... ] > > +/dts-v1/; > > +#include "exynos5420.dtsi" > > +#include "exynos5420-cpus.dtsi" > > +#include <dt-bindings/input/input.h> > > +#include <dt-bindings/gpio/gpio.h> > > +#include <dt-bindings/clock/samsung,s2mps11.h> > > + > > +/ { > > + compatible = "samsung,exynos5420", "samsung,exynos5"; > Skip the compatible. It duplicates exynos5420.dtsi and does not bring > any more information here. Will do. [ ... ] > > + fixed-rate-clocks { > > + oscclk { > > + compatible = "samsung,exynos5420-oscclk"; > > + clock-frequency = <24000000>; > > + }; > > + > > + xxti { > > + compatible = "samsung,clock-xxti"; > > + clock-frequency = <24000000>; > > + }; > > + > > + xusbxti { > > + compatible = "samsung,clock-xusbxti"; > > + clock-frequency = <24000000>; > > + }; > > Just keep one clock - oscclk. We treat it as alias of xxti, even though > it might not be exactly alias. I am not sure about real differences, but > anyway the driver does not care about xxti and xusbxti. xusbxti appears > in Exynos5420 only partially, e.g. not in all places like ballmap. Other > boards have only oscclk, so let's do the same. Will do. > > + }; > > + > > + gpio-keys { > > + compatible = "gpio-keys"; > > + pinctrl-names = "default"; > > + > > + power { > > key-power and so on. Will do. > > + debounce-interval = <10>; > > + gpios = <&gpx2 2 GPIO_ACTIVE_LOW>; > > + label = "Power"; > > + linux,code = <KEY_POWER>; > > + wakeup-source; > > + }; > > + > > + home { > > + debounce-interval = <10>; > > + gpios = <&gpx0 5 GPIO_ACTIVE_LOW>; > > + label = "Home"; > > + linux,code = <KEY_HOME>; > > + wakeup-source; > > + }; > > + > > + volume-up { > > + debounce-interval = <10>; > > + gpios = <&gpx0 2 GPIO_ACTIVE_LOW>; > > + label = "Volume Up"; > > + linux,code = <KEY_VOLUMEUP>; > > + }; > > + > > + volume-down { > > + debounce-interval = <10>; > > + gpios = <&gpx0 3 GPIO_ACTIVE_LOW>; > > + label = "Volume Down"; > > + linux,code = <KEY_VOLUMEDOWN>; > > + }; > > + }; > > +}; [ ... ] > > +&hsi2c_7 { > > + status = "okay"; > > + > > + s2mps11: pmic@66 { > > + compatible = "samsung,s2mps11-pmic"; > > + reg = <0x66>; > > + > > + interrupt-parent = <&gpx3>; > > + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; > > + pinctrl-names = "default"; > > + pinctrl-0 = <&s2mps11_irq>; > > + > > + s2mps11_osc: clocks { > > + compatible = "samsung,s2mps11-clk"; > > + #clock-cells = <1>; > > + clock-output-names = "s2mps11_ap", "s2mps11_cp", > > + "s2mps11_bt"; > > + }; > > + > > + buck1_reg: BUCK1 { > > All regulators should be under node "regulators". It should not work > properly without it, e.g. check > /sys/kernel/debug/regulator/regulator_summary if values match ones you > define. Error on my part when re-arranging, will fix, and investigate issue with usbdrd supplies. > > + regulator-name = "VDD_MIF_1V1"; > > + regulator-min-microvolt = <700000>; > > + regulator-max-microvolt = <1300000>; > > + regulator-always-on; > > + regulator-boot-on; > > + > > + regulator-state-mem { > > + regulator-off-in-suspend; > > + regulator-suspend-microvolt = <1100000>; > > Property is deprecated and I am not sure what is it's purpose since, the > regulator is off in suspend. Will remove it in v3. > > + }; > > + }; > > + > > + buck2_reg: BUCK2 { > > + regulator-name = "VDD_ARM_1V0"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <1500000>; > > + regulator-always-on; > > + regulator-boot-on; > > + regulator-ramp-delay = <12500>; > > + > > + regulator-state-mem { > > + regulator-off-in-suspend; > > + }; > > + }; > > + > > + buck3_reg: BUCK3 { > > + regulator-name = "VDD_INT_1V0"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <1400000>; > > + regulator-always-on; > > + regulator-boot-on; > > + > > + regulator-state-mem { > > + regulator-off-in-suspend; > > + regulator-suspend-microvolt = <1100000>; > > Same. [ ... ] > > + /* > > + * LDO15 varies between devices and is > > + * specified in the device dts > > + */ > > Do it like ldo25 in arch/arm/boot/dts/exynos4412-midas.dtsi. Comment is > good. Will do. [ ... ] > > + > > + ldo30_reg: LDO30 { > > + regulator-name = "VDD_TOUCH_1V8"; > > + regulator-min-microvolt = <1900000>; > > + regulator-max-microvolt = <1900000>; > > Name is 1.8V, voltage is 1.9V. Double check this one :) It does indeed look a bit strange. In Samsung's vendor kernel, two tablet variants uses 1900000, and two 1800000. The two I have access to both uses 1900000. > > + > > + regulator-state-mem { > > + regulator-off-in-suspend; > > + }; > > + }; > > + [ ... ] > > +/* Internal storage */ > > +&mmc_0 { > > + status = "okay"; > > + non-removable; > > + 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", "output"; > > + clk_pin = &sd0_clk; > > + clk_val = <0x3>; > > I think these two are not supported properties. Indeed, fixed in next version. > > + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; > > + vmmc-supply = <&ldo3_reg>; > > + vqmmc-supply = <&ldo13_reg>; > > + bus-width = <8>; > > + cap-mmc-highspeed; > > + mmc-hs200-1_8v; > > +}; > > + > > +/* External sdcard */ > > +&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>; > > + bus-width = <4>; > > + cap-sd-highspeed; > > + sd-uhs-sdr50; > > You should define here also pins, something like Arndale Octa has. Will do. > > +}; > > + > > +&pinctrl_0 { > > + s2mps11_irq: s2mps11-irq-pins { > > + samsung,pins = "gpx3-2"; > > + samsung,pin-function = <EXYNOS_PIN_FUNC_F>; > > + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; > > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; > > + }; > > +}; > > + > > > Best regards, > Krzysztof Best regards, Henrik Grimler
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 0de64f237cd8..be7a493ff1a1 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -220,6 +220,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \ exynos5420-arndale-octa.dtb \ exynos5420-peach-pit.dtb \ exynos5420-smdk5420.dtb \ + exynos5420-chagallwifi.dtb \ exynos5422-odroidhc1.dtb \ exynos5422-odroidxu3.dtb \ exynos5422-odroidxu3-lite.dtb \ diff --git a/arch/arm/boot/dts/exynos5420-chagallwifi.dts b/arch/arm/boot/dts/exynos5420-chagallwifi.dts new file mode 100644 index 000000000000..51eb2bbe6bf6 --- /dev/null +++ b/arch/arm/boot/dts/exynos5420-chagallwifi.dts @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Samsung's Exynos5420 Chagallwifi board device tree source + * + * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2022 Henrik Grimler + */ + +/dts-v1/; +#include "exynos5420-galaxy-tab-common.dtsi" + +/ { + model = "Samsung Chagallwifi based on exynos5420"; + compatible = "samsung,chagallwifi", "samsung,exynos5420", \ + "samsung,exynos5"; +}; + +&s2mps11 { + regulators { + ldo15_reg: LDO15 { + /* Unused */ + regulator-name = "VDD_LDO15"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo17_reg: LDO17 { + regulator-name = "VDD_IRLED_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3350000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo28_reg: LDO28 { + /* Unused */ + regulator-name = "VDD_LDO28"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo29_reg: LDO29 { + regulator-name = "VDD_TCON_1V8"; + regulator-min-microvolt = <1900000>; + regulator-max-microvolt = <1900000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi b/arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi new file mode 100644 index 000000000000..cbcf1c117b67 --- /dev/null +++ b/arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi @@ -0,0 +1,647 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Base DT for Samsung's family of tablets based on Exynos5420. + * + * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2022 Henrik Grimler + */ + +/dts-v1/; +#include "exynos5420.dtsi" +#include "exynos5420-cpus.dtsi" +#include <dt-bindings/input/input.h> +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/clock/samsung,s2mps11.h> + +/ { + compatible = "samsung,exynos5420", "samsung,exynos5"; + chassis-type = "tablet"; + + chosen { + stdout-path = "serial2:115200n8"; + }; + + memory@20000000 { + device_type = "memory"; + reg = <0x20000000 0xc0000000>; + }; + + firmware@2073000 { + compatible = "samsung,secure-firmware"; + reg = <0x02073000 0x1000>; + }; + + fixed-rate-clocks { + oscclk { + compatible = "samsung,exynos5420-oscclk"; + clock-frequency = <24000000>; + }; + + xxti { + compatible = "samsung,clock-xxti"; + clock-frequency = <24000000>; + }; + + xusbxti { + compatible = "samsung,clock-xusbxti"; + clock-frequency = <24000000>; + }; + }; + + gpio-keys { + compatible = "gpio-keys"; + pinctrl-names = "default"; + + power { + debounce-interval = <10>; + gpios = <&gpx2 2 GPIO_ACTIVE_LOW>; + label = "Power"; + linux,code = <KEY_POWER>; + wakeup-source; + }; + + home { + debounce-interval = <10>; + gpios = <&gpx0 5 GPIO_ACTIVE_LOW>; + label = "Home"; + linux,code = <KEY_HOME>; + wakeup-source; + }; + + volume-up { + debounce-interval = <10>; + gpios = <&gpx0 2 GPIO_ACTIVE_LOW>; + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + }; + + volume-down { + debounce-interval = <10>; + gpios = <&gpx0 3 GPIO_ACTIVE_LOW>; + label = "Volume Down"; + linux,code = <KEY_VOLUMEDOWN>; + }; + }; +}; + +&cci { + /* CCI is disabled in hardware */ + status = "disabled"; +}; + +&cpu0 { + cpu-supply = <&buck2_reg>; +}; + +&cpu4 { + cpu-supply = <&buck6_reg>; +}; + +&gpu { + status = "okay"; + mali-supply = <&buck4_reg>; +}; + +&hsi2c_7 { + status = "okay"; + + s2mps11: pmic@66 { + compatible = "samsung,s2mps11-pmic"; + reg = <0x66>; + + interrupt-parent = <&gpx3>; + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&s2mps11_irq>; + + s2mps11_osc: clocks { + compatible = "samsung,s2mps11-clk"; + #clock-cells = <1>; + clock-output-names = "s2mps11_ap", "s2mps11_cp", + "s2mps11_bt"; + }; + + buck1_reg: BUCK1 { + regulator-name = "VDD_MIF_1V1"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1300000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + regulator-suspend-microvolt = <1100000>; + }; + }; + + buck2_reg: BUCK2 { + regulator-name = "VDD_ARM_1V0"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1500000>; + regulator-always-on; + regulator-boot-on; + regulator-ramp-delay = <12500>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + buck3_reg: BUCK3 { + regulator-name = "VDD_INT_1V0"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1400000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + regulator-suspend-microvolt = <1100000>; + }; + }; + + buck4_reg: BUCK4 { + regulator-name = "VDD_G3D_1V0"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1400000>; + regulator-always-on; + regulator-boot-on; + regulator-ramp-delay = <12500>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + buck5_reg: BUCK5 { + regulator-name = "VDD_MEM_1V2"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + regulator-boot-on; + }; + + buck6_reg: BUCK6 { + regulator-name = "VDD_KFC_1V0"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1500000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + buck7_reg: BUCK7 { + regulator-name = "VIN_LLDO_1V4"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1500000>; + regulator-always-on; + }; + + buck8_reg: BUCK8 { + regulator-name = "VIN_MLDO_2V0"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2100000>; + regulator-always-on; + }; + + buck9_reg: BUCK9 { + regulator-name = "VIN_HLDO_3V5"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3500000>; + regulator-always-on; + }; + + buck10_reg: BUCK10 { + regulator-name = "VDD_CAM_ISP_1V0"; + regulator-min-microvolt = <750000>; + regulator-max-microvolt = <3550000>; + }; + + ldo1_reg: LDO1 { + regulator-name = "VDD_ALIVE_1.0V"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + }; + + ldo2_reg: LDO2 { + regulator-name = "VDD_APIO_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo3_reg: LDO3 { + regulator-name = "VDD_APIO_MMC2_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo4_reg: LDO4 { + regulator-name = "VDD_ADC_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo5_reg: LDO5 { + /* Unused */ + regulato-name = "VDD_LDO5"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + ldo6_reg: LDO6 { + regulator-name = "VDD_MIPI_1V0"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo7_reg: LDO7 { + regulator-name = "VDD_MIPI_PLL_ABB1_18V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo8_reg: LDO8 { + /* Unused */ + regulator-name = "VDD_LDO8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + ldo9_reg: LDO9 { + regulator-name = "VDD_UOTG_3V0"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo10_reg: LDO10 { + regulator-name = "VDDQ_PRE_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo11_reg: LDO11 { + regulator-name = "VDD_HSIC_1V0"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo12_reg: LDO12 { + regulator-name = "VDD_HSIC_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + ldo13_reg: LDO13 { + regulator-name = "VDD_APIO_MMC2_2V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2800000>; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo14_reg: LDO14 { + regulator-name = "VDD_MOTOR_3V0"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + /* + * LDO15 varies between devices and is + * specified in the device dts + */ + + ldo16_reg: LDO16 { + regulator-name = "VDD_AP_2V8"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + /* + * LDO17 varies between devices and is + * specified in the device dts + */ + + ldo18_reg: LDO18 { + /* Unused */ + regulator-name = "VDD_LDO18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + + ldo19_reg: LDO19 { + regulator-name = "VDD_VTF_2V8"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo20_reg: LDO20 { + regulator-name = "VDD_CAM1_CAM_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo21_reg: LDO21 { + regulator-name = "VDD_CAM_IO_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo22_reg: LDO22 { + regulator-name = "VDD_CAM0_S_CORE_1V1"; + regulator-min-microvolt = <1050000>; + regulator-max-microvolt = <1200000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo23_reg: LDO23 { + regulator-name = "VDD_MIFS_1V1"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + ldo24_reg: LDO24 { + regulator-name = "VDD_TSP_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo25_reg: LDO25 { + /* Unused */ + regulator-name = "VDD_LDO25"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3950000>; + }; + + ldo26_reg: LDO26 { + regulator-name = "VDD_CAM0_AF_2V8"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo27_reg: LDO27 { + regulator-name = "VDD_G3DS_1V0"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + /* + * LDO28 and LDO29 varies between devices and + * are specified in the device dts + */ + + ldo30_reg: LDO30 { + regulator-name = "VDD_TOUCH_1V8"; + regulator-min-microvolt = <1900000>; + regulator-max-microvolt = <1900000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo31_reg: LDO31 { + regulator-name = "VDD_GRIP_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo32_reg: LDO32 { + regulator-name = "VDD_TSP_1V8"; + regulator-min-microvolt = <1900000>; + regulator-max-microvolt = <1900000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo33_reg: LDO33 { + regulator-name = "VDD_MHL_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo34_reg: LDO34 { + regulator-name = "VDD_MHL_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo35_reg: LDO35 { + regulator-name = "VDD_SIL_1V2"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + ldo36_reg: LDO36 { + /* Unused */ + regulator-name = "VDD_LDO36"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3950000>; + }; + + ldo37_reg: LDO37 { + /* Unused */ + regulator-name = "VDD_LDO37"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3950000>; + }; + + ldo38_reg: LDO38 { + regulator-name = "VDD_KEY_LED_3V3"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <3300000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + }; +}; + +&mixer { + status = "okay"; +}; + +/* Internal storage */ +&mmc_0 { + status = "okay"; + non-removable; + 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", "output"; + clk_pin = &sd0_clk; + clk_val = <0x3>; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; + vmmc-supply = <&ldo3_reg>; + vqmmc-supply = <&ldo13_reg>; + bus-width = <8>; + cap-mmc-highspeed; + mmc-hs200-1_8v; +}; + +/* External sdcard */ +&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>; + bus-width = <4>; + cap-sd-highspeed; + sd-uhs-sdr50; +}; + +&pinctrl_0 { + s2mps11_irq: s2mps11-irq-pins { + samsung,pins = "gpx3-2"; + samsung,pin-function = <EXYNOS_PIN_FUNC_F>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; +}; + +&rtc { + status = "okay"; + clocks = <&clock CLK_RTC>, <&s2mps11_osc S2MPS11_CLK_AP>; + clock-names = "rtc", "rtc_src"; +}; + +&tmu_cpu0 { + vtmu-supply = <&ldo10_reg>; +}; + +&tmu_cpu1 { + vtmu-supply = <&ldo10_reg>; +}; + +&tmu_cpu2 { + vtmu-supply = <&ldo10_reg>; +}; + +&tmu_cpu3 { + vtmu-supply = <&ldo10_reg>; +}; + +&tmu_gpu { + vtmu-supply = <&ldo10_reg>; +}; + +&usbdrd_dwc3_0 { + dr_mode = "peripheral"; +}; + +&usbdrd_dwc3_1 { + dr_mode = "peripheral"; +}; + +&usbdrd3_0 { + vdd33-supply = <&ldo9_reg>; + vdd10-supply = <&ldo11_reg>; +}; + +&usbdrd3_1 { + vdd33-supply = <&ldo9_reg>; + vdd10-supply = <&ldo11_reg>; +};
Chagallwifi, with product name Samsung Galaxy Tab S 10.5", is based on Exynos 5420. This device is one of several tablet models released in 2013 - 2014 based on Exynos 5420. The device tree added here contains support for: - UART - eMMC - SD card - USB CCI has been disabled in the hardware, enabling it would require (de-)soldering a resistor on the board. Trying to boot with it enabled in kernel makes the device hang when CCI is probed. Exynos5420-arndale-octa also has had CCI disabled due to issues [1]. To successfully boot the mainline kernel with the stock bootloader (SBOOT), an additional hack is needed [2]. The same hack is also needed to boot exynos4412-i9300 with stock bootloader, and probably other Samsung devices of similar age. [1] https://marc.info/?l=linux-arm-kernel&m=141718639200624 [2] https://lore.kernel.org/all/1355276466-18295-1-git-send-email-arve@android.com/ Signed-off-by: Henrik Grimler <henrik@grimler.se> --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/exynos5420-chagallwifi.dts | 57 ++ .../dts/exynos5420-galaxy-tab-common.dtsi | 647 ++++++++++++++++++ 3 files changed, 705 insertions(+) create mode 100644 arch/arm/boot/dts/exynos5420-chagallwifi.dts create mode 100644 arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi