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784c93e3ca
The last 4 MiB of RAM on those devices is likely used by trustzone firmware, and is unusable under Linux. Change the device tree memory node accordingly. The proprietary bootloader (S-BOOT) passes these memory ranges through ATAG_MEM; this change allows us to have the correct memory ranges without relying on ATAG_MEM. Tested-by: Henrik Grimler <henrik@grimler.se> # i9300, i9305 Signed-off-by: Artur Weber <aweber.kernel@gmail.com> Link: https://lore.kernel.org/r/20240217-exynos4-memsize-fix-v1-1-7858e9c5f844@gmail.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
116 lines
2.2 KiB
Plaintext
116 lines
2.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/dts-v1/;
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#include "exynos4412-midas.dtsi"
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/ {
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compatible = "samsung,n710x", "samsung,midas", "samsung,exynos4412", "samsung,exynos4";
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model = "Samsung Galaxy Note 2 (GT-N7100, GT-N7105) based on Exynos4412";
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chassis-type = "handset";
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memory@40000000 {
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device_type = "memory";
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reg = <0x40000000 0x7fc00000>;
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};
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/* bootargs are passed in by bootloader */
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cam_vdda_reg: voltage-regulator-10 {
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compatible = "regulator-fixed";
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regulator-name = "CAM_SENSOR_CORE_1.2V";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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gpio = <&gpm4 1 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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};
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};
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&buck9_reg {
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maxim,ena-gpios = <&gpm1 0 GPIO_ACTIVE_HIGH>;
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};
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&cam_af_reg {
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gpio = <&gpm1 1 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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&cam_io_reg {
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gpio = <&gpm0 7 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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&i2c_3 {
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samsung,i2c-sda-delay = <100>;
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samsung,i2c-slave-addr = <0x10>;
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samsung,i2c-max-bus-freq = <400000>;
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pinctrl-0 = <&i2c3_bus>;
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pinctrl-names = "default";
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status = "okay";
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touchscreen@48 {
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compatible = "melfas,mms152";
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reg = <0x48>;
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interrupt-parent = <&gpm2>;
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interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
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touchscreen-size-x = <720>;
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touchscreen-size-y = <1280>;
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avdd-supply = <&ldo23_reg>;
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vdd-supply = <&ldo24_reg>;
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};
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};
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&ldo13_reg {
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regulator-name = "VCC_1.8V_LCD";
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regulator-always-on;
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};
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&ldo25_reg {
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regulator-name = "VCI_3.0V_LCD";
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regulator-min-microvolt = <3000000>;
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regulator-max-microvolt = <3000000>;
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};
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&s5c73m3 {
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standby-gpios = <&gpm0 6 GPIO_ACTIVE_LOW>; /* ISP_STANDBY */
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vdda-supply = <&cam_vdda_reg>;
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status = "okay";
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};
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&sound {
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audio-routing = "HP", "HPOUT1L",
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"HP", "HPOUT1R",
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"SPK", "SPKOUTLN",
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"SPK", "SPKOUTLP",
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"RCV", "HPOUT2N",
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"RCV", "HPOUT2P",
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"HDMI", "LINEOUT1N",
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"HDMI", "LINEOUT1P",
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"LINE", "LINEOUT2N",
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"LINE", "LINEOUT2P",
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"IN1LP", "MICBIAS2",
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"IN1LN", "MICBIAS2",
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"Headset Mic", "MICBIAS2",
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"IN1RP", "Sub Mic",
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"IN1RN", "Sub Mic",
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"IN2LP:VXRN", "Main Mic",
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"IN2LN", "Main Mic",
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"IN2RN", "FM In",
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"IN2RP:VXRP", "FM In";
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};
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&submic_bias_reg {
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regulator-always-on;
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};
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&touchkey_reg {
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gpio = <&gpm0 5 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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