The Mi Pad is a tablet computer based on Nvidia Tegra K1 SoC which originally ran the Android operating system. The Mi Pad has a 7.9" IPS display with 1536 x 2048 (324 ppi) resolution. 2 GB of RAM and 16/64 GB of internal memory that can be supplemented with a microSDXC card giving up to 128 GB of additional storage.
Signed-off-by: Svyatoslav Ryhel clamor95@gmail.com --- arch/arm/dts/Makefile | 1 + arch/arm/dts/tegra124-xiaomi-mocha.dts | 603 +++++++++++++++++++++++++ arch/arm/mach-tegra/tegra124/Kconfig | 5 + board/xiaomi/mocha/Kconfig | 12 + board/xiaomi/mocha/MAINTAINERS | 8 + board/xiaomi/mocha/Makefile | 9 + board/xiaomi/mocha/mocha-spl.c | 49 ++ board/xiaomi/mocha/mocha.c | 41 ++ board/xiaomi/mocha/mocha.env | 23 + configs/mocha_defconfig | 90 ++++ doc/board/index.rst | 1 + doc/board/xiaomi/index.rst | 9 + doc/board/xiaomi/mocha.rst | 112 +++++ include/configs/mocha.h | 25 + 14 files changed, 988 insertions(+) create mode 100644 arch/arm/dts/tegra124-xiaomi-mocha.dts create mode 100644 board/xiaomi/mocha/Kconfig create mode 100644 board/xiaomi/mocha/MAINTAINERS create mode 100644 board/xiaomi/mocha/Makefile create mode 100644 board/xiaomi/mocha/mocha-spl.c create mode 100644 board/xiaomi/mocha/mocha.c create mode 100644 board/xiaomi/mocha/mocha.env create mode 100644 configs/mocha_defconfig create mode 100644 doc/board/xiaomi/index.rst create mode 100644 doc/board/xiaomi/mocha.rst create mode 100644 include/configs/mocha.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index fa8c4d1d3bf..b294d427f4d 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -135,6 +135,7 @@ dtb-$(CONFIG_ARCH_TEGRA) += \ tegra124-nyan-big.dtb \ tegra124-cei-tk1-som.dtb \ tegra124-venice2.dtb \ + tegra124-xiaomi-mocha.dtb \ tegra186-p2771-0000-000.dtb \ tegra186-p2771-0000-500.dtb \ tegra210-p2371-0000.dtb \ diff --git a/arch/arm/dts/tegra124-xiaomi-mocha.dts b/arch/arm/dts/tegra124-xiaomi-mocha.dts new file mode 100644 index 00000000000..2b4e220b3bf --- /dev/null +++ b/arch/arm/dts/tegra124-xiaomi-mocha.dts @@ -0,0 +1,603 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; + +#include <dt-bindings/input/input.h> +#include "tegra124.dtsi" + +/ { + model = "Xiaomi Mi Pad A0101"; + compatible = "xiaomi,mocha", "nvidia,tegra124"; + + chosen { + stdout-path = &uartd; + }; + + aliases { + i2c0 = &pwr_i2c; + i2c1 = &gen1_i2c; + + mmc0 = &sdmmc4; /* eMMC */ + mmc1 = &sdmmc3; /* uSD slot */ + + usb0 = &usb1; + }; + + memory { + device_type = "memory"; + reg = <0x80000000 0x80000000>; + }; + + host1x@50000000 { + dc@54200000 { + clocks = <&tegra_car TEGRA124_CLK_DISP1>, + <&tegra_car TEGRA124_CLK_PLL_D_OUT0>; + + rgb { + status = "okay"; + + nvidia,panel = <&dsia>; + }; + }; + + dsia: dsi@54300000 { + status = "okay"; + + avdd-dsi-csi-supply = <&avdd_dsi_csi>; + nvidia,ganged-mode = <&dsib>; + + panel@0 { + compatible = "sharp,lq079l1sx01"; + reg = <0>; + + link2 = <&panel_secondary>; + + avdd-supply = <&avdd_lcd>; + vddio-supply = <&vdd_lcd_io>; + + vsp-supply = <&vsp_5v5_lcd>; + vsn-supply = <&vsn_5v5_lcd>; + + reset-gpios = <&gpio TEGRA_GPIO(H, 3) GPIO_ACTIVE_LOW>; + + backlight = <&lp8556>; + }; + }; + + dsib: dsi@54400000 { + status = "okay"; + + avdd-dsi-csi-supply = <&avdd_dsi_csi>; + + panel_secondary: panel@0 { + compatible = "sharp,lq079l1sx01"; + reg = <0>; + }; + }; + }; + + pinmux@70000868 { + pinctrl-names = "default"; + pinctrl-0 = <&state_default>; + + state_default: pinmux { + /* Keys pinmux */ + keys { + nvidia,pins = "kb_col0_pq0", + "kb_col6_pq6", + "kb_col7_pq7"; + nvidia,function = "rsvd2"; + nvidia,pull = <TEGRA_PIN_PULL_UP>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + hall-front { + nvidia,pins = "pi5"; + nvidia,function = "gmi"; + nvidia,pull = <TEGRA_PIN_PULL_UP>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + hall-back { + nvidia,pins = "gpio_w3_aud_pw3"; + nvidia,function = "spi1"; + nvidia,pull = <TEGRA_PIN_PULL_UP>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + + /* Leds pinmux */ + bl-en { + nvidia,pins = "pbb4"; + nvidia,function = "vgp4"; + nvidia,pull = <TEGRA_PIN_PULL_DOWN>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + keys-led { + nvidia,pins = "ph1"; + nvidia,function = "pwm1"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + + /* Panel pinmux */ + lcd-rst { + nvidia,pins = "ph3"; + nvidia,function = "gmi"; + nvidia,pull = <TEGRA_PIN_PULL_UP>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + lcd-vsp { + nvidia,pins = "pi4"; + nvidia,function = "gmi"; + nvidia,pull = <TEGRA_PIN_PULL_DOWN>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + lcd-vsn { + nvidia,pins = "kb_row10_ps2"; + nvidia,function = "kbc"; + nvidia,pull = <TEGRA_PIN_PULL_DOWN>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + lcd-id { + nvidia,pins = "kb_row6_pr6"; + nvidia,function = "displaya_alt"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + lcd-pwm { + nvidia,pins = "ph2"; + nvidia,function = "pwm2"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + + /* SDMMC3 pinmux */ + sdmmc3-clk { + nvidia,pins = "sdmmc3_clk_pa6"; + nvidia,function = "sdmmc3"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + sdmmc3-cmd { + nvidia,pins = "sdmmc3_cmd_pa7", + "sdmmc3_dat0_pb7", + "sdmmc3_dat1_pb6", + "sdmmc3_dat2_pb5", + "sdmmc3_dat3_pb4", + "sdmmc3_clk_lb_out_pee4", + "sdmmc3_clk_lb_in_pee5"; + nvidia,function = "sdmmc3"; + nvidia,pull = <TEGRA_PIN_PULL_UP>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + sdmmc3-cd { + nvidia,pins = "sdmmc3_cd_n_pv2"; + nvidia,function = "sdmmc3"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + usd-pwr { + nvidia,pins = "kb_row0_pr0"; + nvidia,function = "rsvd4"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + }; + + /* SDMMC4 pinmux */ + sdmmc4-clk { + nvidia,pins = "sdmmc4_clk_pcc4"; + nvidia,function = "sdmmc4"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + sdmmc4-cmd { + nvidia,pins = "sdmmc4_cmd_pt7", + "sdmmc4_dat0_paa0", + "sdmmc4_dat1_paa1", + "sdmmc4_dat2_paa2", + "sdmmc4_dat3_paa3", + "sdmmc4_dat4_paa4", + "sdmmc4_dat5_paa5", + "sdmmc4_dat6_paa6", + "sdmmc4_dat7_paa7"; + nvidia,function = "sdmmc4"; + nvidia,pull = <TEGRA_PIN_PULL_UP>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + + /* I2C pinmux */ + gen1-i2c { + nvidia,pins = "gen1_i2c_sda_pc5", + "gen1_i2c_scl_pc4"; + nvidia,function = "i2c1"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + nvidia,lock = <1>; + nvidia,open-drain = <1>; + }; + gen2-i2c { + nvidia,pins = "gen2_i2c_scl_pt5", + "gen2_i2c_sda_pt6"; + nvidia,function = "i2c2"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + nvidia,lock = <1>; + nvidia,open-drain = <1>; + }; + cam-i2c { + nvidia,pins = "cam_i2c_scl_pbb1", + "cam_i2c_sda_pbb2"; + nvidia,function = "i2c3"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + nvidia,lock = <1>; + nvidia,open-drain = <1>; + }; + ddc-i2c { + nvidia,pins = "ddc_scl_pv4", + "ddc_sda_pv5"; + nvidia,function = "i2c4"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + }; + pwr-i2c { + nvidia,pins = "pwr_i2c_scl_pz6", + "pwr_i2c_sda_pz7"; + nvidia,function = "i2cpwr"; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + nvidia,open-drain = <1>; + }; + + dsi-b { + nvidia,pins = "mipi_pad_ctrl_dsi_b"; + nvidia,function = "dsi_b"; + }; + + /* GPIO power/drive control */ + drive-sdio1 { + nvidia,pins = "drive_sdio1"; + nvidia,high-speed-mode = <TEGRA_PIN_ENABLE>; + nvidia,schmitt = <TEGRA_PIN_DISABLE>; + nvidia,low-power-mode = <TEGRA_PIN_LP_DRIVE_DIV_1>; + nvidia,pull-down-strength = <32>; + nvidia,pull-up-strength = <42>; + nvidia,slew-rate-rising = <TEGRA_PIN_SLEW_RATE_FASTEST>; + nvidia,slew-rate-falling = <TEGRA_PIN_SLEW_RATE_FASTEST>; + }; + + drive-sdio3 { + nvidia,pins = "drive_sdio3"; + nvidia,high-speed-mode = <TEGRA_PIN_ENABLE>; + nvidia,schmitt = <TEGRA_PIN_DISABLE>; + nvidia,low-power-mode = <TEGRA_PIN_LP_DRIVE_DIV_1>; + nvidia,pull-down-strength = <20>; + nvidia,pull-up-strength = <36>; + nvidia,slew-rate-rising = <TEGRA_PIN_SLEW_RATE_FASTEST>; + nvidia,slew-rate-falling = <TEGRA_PIN_SLEW_RATE_FASTEST>; + }; + + drive-gma { + nvidia,pins = "drive_gma"; + nvidia,high-speed-mode = <TEGRA_PIN_ENABLE>; + nvidia,schmitt = <TEGRA_PIN_DISABLE>; + nvidia,low-power-mode = <TEGRA_PIN_LP_DRIVE_DIV_1>; + nvidia,pull-down-strength = <1>; + nvidia,pull-up-strength = <2>; + nvidia,slew-rate-rising = <TEGRA_PIN_SLEW_RATE_FASTEST>; + nvidia,slew-rate-falling = <TEGRA_PIN_SLEW_RATE_FASTEST>; + }; + }; + }; + + uartd: serial@70006300 { + status = "okay"; + }; + + gen1_i2c: i2c@7000c000 { + status = "okay"; + clock-frequency = <400000>; + + lp8556: backlight@2c { + compatible = "ti,lp8556"; + reg = <0x2c>; + + dev-ctrl = /bits/ 8 <0x83>; + init-brt = /bits/ 8 <0x1f>; + + power-supply = <&vdd_3v3_sys>; + enable-supply = <&vddio_1v8_bl>; + + rom-98h { + rom-addr = /bits/ 8 <0x98>; + rom-val = /bits/ 8 <0x80>; + }; + + rom-9eh { + rom-addr = /bits/ 8 <0x9e>; + rom-val = /bits/ 8 <0x21>; + }; + + rom-a0h { + rom-addr = /bits/ 8 <0xa0>; + rom-val = /bits/ 8 <0xff>; + }; + + rom-a1h { + rom-addr = /bits/ 8 <0xa1>; + rom-val = /bits/ 8 <0x3f>; + }; + + rom-a2h { + rom-addr = /bits/ 8 <0xa2>; + rom-val = /bits/ 8 <0x20>; + }; + + rom-a3h { + rom-addr = /bits/ 8 <0xa3>; + rom-val = /bits/ 8 <0x00>; + }; + + rom-a4h { + rom-addr = /bits/ 8 <0xa4>; + rom-val = /bits/ 8 <0x72>; + }; + + rom-a5h { + rom-addr = /bits/ 8 <0xa5>; + rom-val = /bits/ 8 <0x24>; + }; + + rom-a6h { + rom-addr = /bits/ 8 <0xa6>; + rom-val = /bits/ 8 <0x80>; + }; + + rom-a7h { + rom-addr = /bits/ 8 <0xa7>; + rom-val = /bits/ 8 <0xf5>; + }; + + rom-a8h { + rom-addr = /bits/ 8 <0xa8>; + rom-val = /bits/ 8 <0x24>; + }; + + rom-a9h { + rom-addr = /bits/ 8 <0xa9>; + rom-val = /bits/ 8 <0xb2>; + }; + + rom-aah { + rom-addr = /bits/ 8 <0xaa>; + rom-val = /bits/ 8 <0x8f>; + }; + + rom-aeh { + rom-addr = /bits/ 8 <0xae>; + rom-val = /bits/ 8 <0x0f>; + }; + }; + }; + + pwr_i2c: i2c@7000d000 { + status = "okay"; + clock-frequency = <400000>; + + /* Texas Instruments TPS65913 PMIC */ + pmic: tps65913@58 { + compatible = "ti,tps65913"; + reg = <0x58>; + + interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; + #interrupt-cells = <2>; + interrupt-controller; + + ti,system-power-controller; + + palmas_gpio: gpio { + compatible = "ti,palmas-gpio"; + gpio-controller; + #gpio-cells = <2>; + }; + + pinmux { + compatible = "ti,tps65913-pinctrl"; + + pinctrl-names = "default"; + pinctrl-0 = <&palmas_default>; + + palmas_default: pinmux { + pin_gpio4 { + pins = "gpio4"; + function = "gpio"; + }; + }; + }; + + pmic { + compatible = "ti,tps65913-pmic"; + + regulators { + vdd_1v8_vio: smps8 { + regulator-name = "vdd_1v8_gen"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + vdd_hv_sdmmc: smps9 { + regulator-name = "vdd_hv_sdmmc"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + + avdd_lcd: ldo2 { + regulator-name = "avdd_lcd"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + }; + + avdd_dsi_csi: ldo5 { + regulator-name = "avdd_dsi_csi"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-boot-on; + }; + + vddio_usd: ldo9 { + regulator-name = "vddio_sdmmc"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + + avdd_usb: ldousb { + regulator-name = "vdd_usb"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + }; + }; + }; + }; + + sdmmc3: sdhci@700b0400 { + status = "okay"; + bus-width = <4>; + + cd-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; + power-gpios = <&gpio TEGRA_GPIO(R, 0) GPIO_ACTIVE_HIGH>; + + vmmc-supply = <&vdd_hv_sdmmc>; + vqmmc-supply = <&vddio_usd>; + }; + + sdmmc4: sdhci@700b0600 { + status = "okay"; + bus-width = <8>; + non-removable; + + vmmc-supply = <&vdd_hv_sdmmc>; + vqmmc-supply = <&vdd_1v8_vio>; + }; + + usb1: usb@7d000000 { + status = "okay"; + dr_mode = "otg"; + }; + + clk32k_in: clock-32k { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + clock-output-names = "ref-oscillator"; + }; + + extcon-keys { + compatible = "gpio-keys"; + + switch-back-hall-sensor { + label = "Hall sensor (back)"; + gpios = <&gpio TEGRA_GPIO(W, 3) GPIO_ACTIVE_LOW>; + linux,code = <SW_LID>; + }; + + switch-front-hall-sensor { + label = "Hall sensor (front)"; + gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>; + linux,code = <SW_LID>; + }; + }; + + gpio-keys { + compatible = "gpio-keys"; + + key-power { + label = "Power"; + gpios = <&gpio TEGRA_GPIO(Q, 0) GPIO_ACTIVE_LOW>; + linux,code = <KEY_ENTER>; + }; + + key-volume-down { + label = "Volume Down"; + gpios = <&gpio TEGRA_GPIO(Q, 7) GPIO_ACTIVE_LOW>; + linux,code = <KEY_DOWN>; + }; + + key-volume-up { + label = "Volume Up"; + gpios = <&gpio TEGRA_GPIO(Q, 6) GPIO_ACTIVE_LOW>; + linux,code = <KEY_UP>; + }; + }; + + vdd_3v3_sys: regulator-bl-en { + compatible = "regulator-fixed"; + regulator-name = "vdd_5v0_bl"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + enable-active-high; + }; + + vddio_1v8_bl: regulator-bl-io { + compatible = "regulator-fixed"; + regulator-name = "vddio_1v8_bl"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + enable-active-high; + gpio = <&gpio TEGRA_GPIO(BB, 4) GPIO_ACTIVE_HIGH>; + }; + + vdd_lcd_io: regulator-lcdvio { + compatible = "regulator-fixed"; + regulator-name = "dvdd_lcd"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + enable-active-high; + gpio = <&palmas_gpio 4 GPIO_ACTIVE_HIGH>; + }; + + vsp_5v5_lcd: regulator-vsp { + compatible = "regulator-fixed"; + regulator-name = "avdd_lcd_vsp"; + regulator-min-microvolt = <5500000>; + regulator-max-microvolt = <5500000>; + enable-active-high; + gpio = <&gpio TEGRA_GPIO(I, 4) GPIO_ACTIVE_HIGH>; + }; + + vsn_5v5_lcd: regulator-vsn { + compatible = "regulator-fixed"; + regulator-name = "avdd_lcd_vsn"; + regulator-min-microvolt = <5500000>; + regulator-max-microvolt = <5500000>; + enable-active-high; + gpio = <&gpio TEGRA_GPIO(S, 2) GPIO_ACTIVE_HIGH>; + }; +}; diff --git a/arch/arm/mach-tegra/tegra124/Kconfig b/arch/arm/mach-tegra/tegra124/Kconfig index 84c8f86bad0..a62b055f7e6 100644 --- a/arch/arm/mach-tegra/tegra124/Kconfig +++ b/arch/arm/mach-tegra/tegra124/Kconfig @@ -30,6 +30,10 @@ config TARGET_CEI_TK1_SOM the SoC are assigned to which functions, and the PCIEe configuration.
+config TARGET_MOCHA + bool "Xiaomi Tegra124 Mi Pad board" + select BOARD_LATE_INIT + config TARGET_NYAN_BIG bool "Google/NVIDIA Nyan-big Chromebook" select BOARD_LATE_INIT @@ -54,5 +58,6 @@ source "board/nvidia/jetson-tk1/Kconfig" source "board/nvidia/nyan-big/Kconfig" source "board/nvidia/venice2/Kconfig" source "board/toradex/apalis-tk1/Kconfig" +source "board/xiaomi/mocha/Kconfig"
endif diff --git a/board/xiaomi/mocha/Kconfig b/board/xiaomi/mocha/Kconfig new file mode 100644 index 00000000000..25c61d4169e --- /dev/null +++ b/board/xiaomi/mocha/Kconfig @@ -0,0 +1,12 @@ +if TARGET_MOCHA + +config SYS_BOARD + default "mocha" + +config SYS_VENDOR + default "xiaomi" + +config SYS_CONFIG_NAME + default "mocha" + +endif diff --git a/board/xiaomi/mocha/MAINTAINERS b/board/xiaomi/mocha/MAINTAINERS new file mode 100644 index 00000000000..c3871a15a35 --- /dev/null +++ b/board/xiaomi/mocha/MAINTAINERS @@ -0,0 +1,8 @@ +MOCHA BOARD +M: Svyatoslav Ryhel clamor95@gmail.com +S: Maintained +F: arch/arm/dts/tegra124-xiaomi-mocha.dts +F: board/xiaomi/mocha/ +F: configs/mocha_defconfig +F: doc/board/xiaomi/mocha.rst +F: include/configs/mocha.h diff --git a/board/xiaomi/mocha/Makefile b/board/xiaomi/mocha/Makefile new file mode 100644 index 00000000000..c42e42639b3 --- /dev/null +++ b/board/xiaomi/mocha/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (c) 2024, Svyatoslav Ryhel clamor95@gmail.com +# + +obj-$(CONFIG_XPL_BUILD) += mocha-spl.o + +obj-y += mocha.o + diff --git a/board/xiaomi/mocha/mocha-spl.c b/board/xiaomi/mocha/mocha-spl.c new file mode 100644 index 00000000000..5fb11df0a93 --- /dev/null +++ b/board/xiaomi/mocha/mocha-spl.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Mocha SPL stage configuration + * + * (C) Copyright 2024 + * Svyatoslav Ryhel clamor95@gmail.com + */ + +#include <asm/arch/tegra.h> +#include <asm/arch-tegra/tegra_i2c.h> +#include <linux/delay.h> + +#define TPS65913_I2C_ADDR (0x58 << 1) + +#define TPS65913_SMPS12_CTRL 0x20 +#define TPS65913_SMPS12_VOLTAGE 0x23 +#define TPS65913_SMPS45_CTRL 0x28 +#define TPS65913_SMPS45_VOLTAGE 0x2B +#define TPS65913_SMPS7_CTRL 0x30 +#define TPS65913_SMPS7_VOLTAGE 0x33 + +#define TPS65913_SMPS12_CTRL_DATA (0x5100 | TPS65913_SMPS12_CTRL) +#define TPS65913_SMPS12_VOLTAGE_DATA (0x3800 | TPS65913_SMPS12_VOLTAGE) +#define TPS65913_SMPS45_CTRL_DATA (0x5100 | TPS65913_SMPS45_CTRL) +#define TPS65913_SMPS45_VOLTAGE_DATA (0x3800 | TPS65913_SMPS45_VOLTAGE) +#define TPS65913_SMPS7_CTRL_DATA (0x5100 | TPS65913_SMPS7_CTRL) +#define TPS65913_SMPS7_VOLTAGE_DATA (0x4700 | TPS65913_SMPS7_VOLTAGE) + +void pmic_enable_cpu_vdd(void) +{ + /* Set CORE VDD to 1.150V. */ + tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS7_VOLTAGE_DATA); + udelay(1000); + tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS7_CTRL_DATA); + + udelay(1000); + + /* Set CPU VDD to 1.0V. */ + tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS12_VOLTAGE_DATA); + udelay(1000); + tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS12_CTRL_DATA); + udelay(10 * 1000); + + /* Set GPU VDD to 1.0V. */ + tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS45_VOLTAGE_DATA); + udelay(1000); + tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS45_CTRL_DATA); + udelay(10 * 1000); +} diff --git a/board/xiaomi/mocha/mocha.c b/board/xiaomi/mocha/mocha.c new file mode 100644 index 00000000000..5026d541a5f --- /dev/null +++ b/board/xiaomi/mocha/mocha.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2024 + * Svyatoslav Ryhel clamor95@gmail.com + */ + +#include <dm.h> +#include <fdt_support.h> +#include <i2c.h> +#include <log.h> + +#ifdef CONFIG_MMC_SDHCI_TEGRA + +#define TPS65913_I2C_ADDRESS 0x58 +#define TPS65913_PRIMARY_SECONDARY_PAD2 0xfb +#define GPIO_4 BIT(0) +#define TPS65913_PRIMARY_SECONDARY_PAD3 0xfe +#define DVFS2 BIT(1) +#define DVFS1 BIT(0) + +/* We are using this function only till palmas pinctrl driver is available */ +void pin_mux_mmc(void) +{ + struct udevice *dev; + int ret; + + ret = i2c_get_chip_for_busnum(0, TPS65913_I2C_ADDRESS, 1, &dev); + if (ret) { + log_debug("%s: cannot find PMIC I2C chip\n", __func__); + return; + } + + /* GPIO4 function has to be GPIO */ + dm_i2c_reg_clrset(dev, TPS65913_PRIMARY_SECONDARY_PAD2, + GPIO_4, 0); + + /* DVFS1 and DVFS2 are disabled */ + dm_i2c_reg_clrset(dev, TPS65913_PRIMARY_SECONDARY_PAD3, + DVFS2 | DVFS1, 0); +} +#endif diff --git a/board/xiaomi/mocha/mocha.env b/board/xiaomi/mocha/mocha.env new file mode 100644 index 00000000000..d93e24316f6 --- /dev/null +++ b/board/xiaomi/mocha/mocha.env @@ -0,0 +1,23 @@ +#include <env/nvidia/prod_upd.env> + +button_cmd_0_name=Volume Down +button_cmd_0=bootmenu +button_cmd_1_name=Hall sensor (back) +button_cmd_1=poweroff +button_cmd_1_name=Hall sensor (front) +button_cmd_1=poweroff + +partitions=name=emmc,start=0,size=-,uuid=${uuid_gpt_rootfs} + +boot_block_size_r=0x400000 +boot_block_size=0x2000 +boot_dev=1 + +bootmenu_0=mount internal storage=usb start && ums 0 mmc 0; bootmenu +bootmenu_1=mount external storage=usb start && ums 0 mmc 1; bootmenu +bootmenu_2=fastboot=echo Starting Fastboot protocol ...; fastboot usb 0; bootmenu +bootmenu_3=update bootloader=run flash_uboot +bootmenu_4=reboot RCM=enterrcm +bootmenu_5=reboot=reset +bootmenu_6=power off=poweroff +bootmenu_delay=-1 diff --git a/configs/mocha_defconfig b/configs/mocha_defconfig new file mode 100644 index 00000000000..fc3af670bbf --- /dev/null +++ b/configs/mocha_defconfig @@ -0,0 +1,90 @@ +CONFIG_ARM=y +CONFIG_ARCH_TEGRA=y +CONFIG_SUPPORT_PASSING_ATAGS=y +CONFIG_CMDLINE_TAG=y +CONFIG_INITRD_TAG=y +CONFIG_TEXT_BASE=0x80110000 +CONFIG_SYS_MALLOC_LEN=0x2500000 +CONFIG_NR_DRAM_BANKS=2 +CONFIG_ENV_SOURCE_FILE="mocha" +CONFIG_ENV_SIZE=0x3000 +CONFIG_ENV_OFFSET=0xFFFFD000 +CONFIG_DEFAULT_DEVICE_TREE="tegra124-xiaomi-mocha" +CONFIG_SPL_STACK=0x800ffffc +CONFIG_SPL_TEXT_BASE=0x80108000 +CONFIG_SYS_LOAD_ADDR=0x82000000 +CONFIG_TEGRA124=y +CONFIG_TARGET_MOCHA=y +CONFIG_TEGRA_ENABLE_UARTD=y +CONFIG_CMD_EBTUPDATE=y +CONFIG_TEGRA_GPU=y +CONFIG_BUTTON_CMD=y +CONFIG_BOOTDELAY=0 +CONFIG_AUTOBOOT_KEYED=y +CONFIG_AUTOBOOT_KEYED_CTRLC=y +CONFIG_OF_SYSTEM_SETUP=y +CONFIG_BOOTCOMMAND="bootflow scan; poweroff" +CONFIG_SYS_PBSIZE=2086 +CONFIG_SPL_FOOTPRINT_LIMIT=y +CONFIG_SPL_MAX_FOOTPRINT=0x8000 +# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set +CONFIG_SPL_SYS_MALLOC=y +CONFIG_SPL_HAS_CUSTOM_MALLOC_START=y +CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR=0x80090000 +CONFIG_SPL_SYS_MALLOC_SIZE=0x10000 +CONFIG_SYS_PROMPT="Tegra124 (Mocha) # " +# CONFIG_CMD_BOOTEFI_BOOTMGR is not set +CONFIG_CMD_BOOTMENU=y +# CONFIG_CMD_IMI is not set +CONFIG_CMD_GPIO=y +CONFIG_CMD_GPT=y +CONFIG_CMD_GPT_RENAME=y +CONFIG_CMD_I2C=y +CONFIG_CMD_MMC=y +CONFIG_CMD_POWEROFF=y +CONFIG_CMD_USB=y +CONFIG_CMD_USB_MASS_STORAGE=y +CONFIG_CMD_UMS_ABORT_KEYED=y +# CONFIG_CMD_SETEXPR is not set +CONFIG_CMD_PAUSE=y +CONFIG_CMD_REGULATOR=y +CONFIG_CMD_EXT4_WRITE=y +# CONFIG_SPL_DOS_PARTITION is not set +# CONFIG_SPL_EFI_PARTITION is not set +CONFIG_ENV_OVERWRITE=y +CONFIG_SYS_RELOC_GD_ENV_ADDR=y +CONFIG_SYS_MMC_ENV_PART=2 +CONFIG_BUTTON=y +CONFIG_USB_FUNCTION_FASTBOOT=y +CONFIG_FASTBOOT_BUF_ADDR=0x91000000 +CONFIG_FASTBOOT_BUF_SIZE=0x10000000 +CONFIG_FASTBOOT_FLASH=y +CONFIG_FASTBOOT_FLASH_MMC_DEV=0 +CONFIG_FASTBOOT_CMD_OEM_FORMAT=y +CONFIG_PALMAS_GPIO=y +CONFIG_SYS_I2C_TEGRA=y +CONFIG_BUTTON_KEYBOARD=y +CONFIG_DM_PMIC=y +CONFIG_PMIC_PALMAS=y +CONFIG_DM_REGULATOR=y +CONFIG_DM_REGULATOR_FIXED=y +CONFIG_DM_REGULATOR_PALMAS=y +CONFIG_PWM_TEGRA=y +CONFIG_SYS_NS16550=y +CONFIG_SYSRESET_PALMAS=y +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_TEGRA=y +CONFIG_USB_KEYBOARD=y +CONFIG_USB_GADGET=y +CONFIG_USB_GADGET_MANUFACTURER="Xiaomi" +CONFIG_USB_GADGET_VENDOR_NUM=0x18d1 +CONFIG_USB_GADGET_PRODUCT_NUM=0xd00d +CONFIG_CI_UDC=y +CONFIG_VIDEO=y +# CONFIG_VIDEO_FONT_8X16 is not set +CONFIG_VIDEO_FONT_16X32=y +# CONFIG_VIDEO_LOGO is not set +CONFIG_VIDEO_LCD_SHARP_LQ079L1SX01=y +CONFIG_BACKLIGHT_LP855x=y +CONFIG_VIDEO_DSI_TEGRA30=y diff --git a/doc/board/index.rst b/doc/board/index.rst index a1f2dd6cdb8..b68a309d3c7 100644 --- a/doc/board/index.rst +++ b/doc/board/index.rst @@ -67,4 +67,5 @@ Board-specific doc variscite/index wexler/index xen/index + xiaomi/index xilinx/index diff --git a/doc/board/xiaomi/index.rst b/doc/board/xiaomi/index.rst new file mode 100644 index 00000000000..109ab4a251f --- /dev/null +++ b/doc/board/xiaomi/index.rst @@ -0,0 +1,9 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Xiaomi +====== + +.. toctree:: + :maxdepth: 2 + + mocha diff --git a/doc/board/xiaomi/mocha.rst b/doc/board/xiaomi/mocha.rst new file mode 100644 index 00000000000..be3e333127b --- /dev/null +++ b/doc/board/xiaomi/mocha.rst @@ -0,0 +1,112 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +U-Boot for the Xiaomi Mi Pad tablet +=================================== + +``DISCLAMER!`` Moving your Xiaomi Mi Pad to use U-Boot assumes replacement +of the vendor bootloader. Vendor Android firmwares will no longer be able +to run on the device. This replacement IS reversible. + +Quick Start +----------- + +- Build U-Boot +- Boot U-Boot +- Process and flash U-Boot +- Boot Linux +- Self Upgrading +- Chainload configuration + +Build U-Boot +------------ + +.. code-block:: bash + + $ export CROSS_COMPILE=arm-none-eabi- + $ make mocha_defconfig + $ make + +After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin`` +image, ready for booting or further processing. + +Boot U-Boot +----------- +Existing tegrarcm loader can be used to pre-load U-Boot you have build +into RAM and basically perform a tethered cold-boot. + +.. code-block:: bash + + $ tegrarcm --bct mocha.bct --bootloader u-boot-dtb-tegra.bin --loadaddr 0x80108000 + +U-Boot will try to load Linux kernel and if fails, it will turn the +tablet off. While pre-loading U-Boot, hold the ``volume down`` button +which will trigger the bootmenu. + +Process and flash U-Boot +------------------------ + +``DISCLAMER!`` All questions related to the re-crypt work should be asked +in re-crypt repo issues. NOT HERE! + +re-crypt is a tool that processes the ``u-boot-dtb-tegra.bin`` binary into +form usable by device. This process is required only on the first +installation or to recover the device in case of a failed update. + +.. code-block:: bash + + $ git clone https://gitlab.com/grate-driver/re-crypt.git + $ cd re-crypt # place your u-boot-dtb-tegra.bin here + $ ./re-crypt.py --dev mocha + +The script will produce ``bct.img`` and ``ebt.img`` ready to flash. + +Permanent installation can be performed by pre-loading just built U-Boot +into RAM via tegrarcm. While pre-loading U-Boot, hold the ``volume down`` +button which will trigger the bootmenu. There, select ``fastboot`` using +the volume and power buttons. + +After, on host PC, do: + +.. code-block:: bash + + $ fastboot flash 0.1 bct.img + $ fastboot flash 0.2 ebt.img + $ fastboot reboot + +Device will reboot. + +Boot Linux +---------- + +To boot Linux, U-Boot will look for an ``extlinux.conf`` on MicroSD and then on +eMMC. Additionally, if the ``volume down`` button is pressed while booting, the +device will enter bootmenu. Bootmenu contains entries to mount MicroSD and eMMC +as mass storage, fastboot, reboot, reboot RCM, poweroff, enter U-Boot console +and update bootloader (check the next chapter). + +Flashing ``bct.img`` and ``ebt.img`` eliminates vendor restrictions on eMMC and +allows the user to use/partition it in any way the user desires. + +Self Upgrading +-------------- + +Place your ``u-boot-dtb-tegra.bin`` on the first partition of the MicroSD card +and insert it into the tablet. Enter bootmenu, choose update the bootloader +option with the Power button and U-Boot should update itself. Once the process +is completed, U-Boot will ask to press any button to reboot. + +Chainload configuration +----------------------- + +To build U-Boot without SPL suitable for chainloading adjust mocha_defconfig: + +.. code-block:: + + CONFIG_TEXT_BASE=0x80A00000 + CONFIG_SKIP_LOWLEVEL_INIT=y + # CONFIG_OF_BOARD_SETUP is not set + CONFIG_TEGRA_SUPPORT_NON_SECURE=y + +After the build succeeds, you will obtain the final ``u-boot-dtb.bin`` +file, ready for booting using vendor bootloader's fastboot or which can be +further processed into a flashable image. diff --git a/include/configs/mocha.h b/include/configs/mocha.h new file mode 100644 index 00000000000..1c2eb906085 --- /dev/null +++ b/include/configs/mocha.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved. + * + * Copyright (c) 2024, Svyatoslav Ryhel clamor95@gmail.com + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include "tegra124-common.h" + +/* High-level configuration options */ +#define CFG_TEGRA_BOARD_STRING "Xiaomi Mocha" + +/* Board-specific serial config */ +#define CFG_SYS_NS16550_COM1 NV_PA_APB_UARTD_BASE + +#ifdef CONFIG_TEGRA_SUPPORT_NON_SECURE + #define CFG_PRAM 0x38400 /* 225 MB */ +#endif + +#include "tegra-common-post.h" + +#endif /* __CONFIG_H */