[PATCH v9 5/7] board: asus: grouper: add Google Nexus 7 (2012) support
Svyatoslav Ryhel
clamor95 at gmail.com
Fri Aug 18 11:04:45 CEST 2023
Nexus 7 is a mini tablet computer co-developed by Google and Asus
that runs the Android operating system. The Nexus 7 features a 7"
display, an Nvidia Tegra 3 quad-core chip, 1 GB of RAM and 8/16 GB
of internal storage.
This patch brings support for all 3 known ASUS/Google devices:
- Nexus 7 (2012) E1565
- Nexus 7 (2012) PM269
- Nexus 7 (2012) 3G - tilapia
Tested-by: Andreas Westman Dorcsak <hedmoo at yahoo.com> # ASUS Grouper E1565
Tested-by: Svyatoslav Ryhel <clamor95 at gmail.com> # ASUS Grouper E1565
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
---
arch/arm/dts/Makefile | 3 +
arch/arm/dts/tegra30-asus-grouper-common.dtsi | 156 ++++++++
.../dts/tegra30-asus-nexus7-grouper-E1565.dts | 43 +++
.../dts/tegra30-asus-nexus7-grouper-PM269.dts | 36 ++
.../dts/tegra30-asus-nexus7-tilapia-E1565.dts | 62 +++
arch/arm/mach-tegra/tegra30/Kconfig | 5 +
board/asus/grouper/Kconfig | 22 ++
board/asus/grouper/MAINTAINERS | 10 +
board/asus/grouper/Makefile | 14 +
board/asus/grouper/grouper-spl-max.c | 45 +++
board/asus/grouper/grouper-spl-ti.c | 41 ++
board/asus/grouper/grouper.c | 202 ++++++++++
board/asus/grouper/pinmux-config-grouper.h | 362 ++++++++++++++++++
configs/grouper_E1565.config | 2 +
configs/grouper_PM269.config | 2 +
configs/grouper_common_defconfig | 80 ++++
configs/tilapia.config | 3 +
doc/board/asus/grouper_common.rst | 94 +++++
doc/board/asus/index.rst | 1 +
include/configs/grouper.h | 61 +++
20 files changed, 1244 insertions(+)
create mode 100644 arch/arm/dts/tegra30-asus-grouper-common.dtsi
create mode 100644 arch/arm/dts/tegra30-asus-nexus7-grouper-E1565.dts
create mode 100644 arch/arm/dts/tegra30-asus-nexus7-grouper-PM269.dts
create mode 100644 arch/arm/dts/tegra30-asus-nexus7-tilapia-E1565.dts
create mode 100644 board/asus/grouper/Kconfig
create mode 100644 board/asus/grouper/MAINTAINERS
create mode 100644 board/asus/grouper/Makefile
create mode 100644 board/asus/grouper/grouper-spl-max.c
create mode 100644 board/asus/grouper/grouper-spl-ti.c
create mode 100644 board/asus/grouper/grouper.c
create mode 100644 board/asus/grouper/pinmux-config-grouper.h
create mode 100644 configs/grouper_E1565.config
create mode 100644 configs/grouper_PM269.config
create mode 100644 configs/grouper_common_defconfig
create mode 100644 configs/tilapia.config
create mode 100644 doc/board/asus/grouper_common.rst
create mode 100644 include/configs/grouper.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index eae88beef8..90487d6105 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -255,6 +255,9 @@ dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
tegra20-ventana.dtb \
tegra20-colibri.dtb \
tegra30-apalis.dtb \
+ tegra30-asus-nexus7-grouper-PM269.dtb \
+ tegra30-asus-nexus7-grouper-E1565.dtb \
+ tegra30-asus-nexus7-tilapia-E1565.dtb \
tegra30-asus-p1801-t.dtb \
tegra30-asus-tf201.dtb \
tegra30-asus-tf300t.dtb \
diff --git a/arch/arm/dts/tegra30-asus-grouper-common.dtsi b/arch/arm/dts/tegra30-asus-grouper-common.dtsi
new file mode 100644
index 0000000000..ad91bfc69d
--- /dev/null
+++ b/arch/arm/dts/tegra30-asus-grouper-common.dtsi
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/input/input.h>
+#include "tegra30.dtsi"
+
+/ {
+ chosen {
+ stdout-path = &uarta;
+ };
+
+ aliases {
+ i2c0 = &pwr_i2c;
+
+ mmc0 = &sdmmc4; /* eMMC */
+
+ rtc0 = &pmic;
+ rtc1 = "/rtc at 7000e000";
+
+ usb0 = &usb1;
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x40000000>;
+ };
+
+ host1x at 50000000 {
+ dc at 54200000 {
+ nvidia,180-rotation;
+ rgb {
+ status = "okay";
+
+ nvidia,panel = <&panel>;
+ };
+ };
+ };
+
+ gpio at 6000d000 {
+ volume-buttons-hog {
+ gpio-hog;
+ gpios = <TEGRA_GPIO(R, 0) GPIO_ACTIVE_HIGH>,
+ <TEGRA_GPIO(Q, 0) GPIO_ACTIVE_HIGH>;
+ output-low;
+ };
+ };
+
+ uarta: serial at 70006000 {
+ status = "okay";
+ };
+
+ pwm: pwm at 7000a000 {
+ status = "okay";
+ };
+
+ pwr_i2c: i2c at 7000d000 {
+ status = "okay";
+ clock-frequency = <400000>;
+ };
+
+ sdmmc4: sdhci at 78000600 {
+ status = "okay";
+ bus-width = <8>;
+ non-removable;
+ };
+
+ usb1: usb at 7d000000 {
+ status = "okay";
+ dr_mode = "otg";
+ };
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+
+ enable-gpios = <&gpio TEGRA_GPIO(H, 2) GPIO_ACTIVE_HIGH>;
+ power-supply = <&vdd_5v0_bl>;
+ pwms = <&pwm 0 50000>;
+
+ brightness-levels = <1 35 70 105 140 175 210 255>;
+ default-brightness-level = <5>;
+ };
+
+ /* PMIC has a built-in 32KHz oscillator which is used by PMC */
+ clk32k_in: clock-32k {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-output-names = "pmic-oscillator";
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ key-power {
+ label = "Power";
+ gpios = <&gpio TEGRA_GPIO(V, 0) GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_ENTER>;
+ };
+
+ key-volume-up {
+ label = "Volume Up";
+ gpios = <&gpio TEGRA_GPIO(Q, 2) GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_UP>;
+ };
+
+ key-volume-down {
+ label = "Volume Down";
+ gpios = <&gpio TEGRA_GPIO(Q, 3) GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_DOWN>;
+ };
+ };
+
+ panel: panel {
+ compatible = "simple-panel";
+
+ power-supply = <&vdd_pnl_reg>;
+ enable-gpios = <&gpio TEGRA_GPIO(N, 6) GPIO_ACTIVE_HIGH>;
+
+ backlight = <&backlight>;
+
+ display-timings {
+ timing at 0 {
+ /* 1280x800 at 60Hz */
+ clock-frequency = <68000000>;
+
+ hactive = <800>;
+ hfront-porch = <24>;
+ hback-porch = <32>;
+ hsync-len = <24>;
+
+ vactive = <1280>;
+ vfront-porch = <5>;
+ vback-porch = <32>;
+ vsync-len = <1>;
+ };
+ };
+ };
+
+ vdd_pnl_reg: regulator-pnl {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_panel";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio TEGRA_GPIO(W, 1) GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ vdd_5v0_bl: regulator-bl {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_5v0_bl";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ gpio = <&gpio TEGRA_GPIO(H, 3) GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
diff --git a/arch/arm/dts/tegra30-asus-nexus7-grouper-E1565.dts b/arch/arm/dts/tegra30-asus-nexus7-grouper-E1565.dts
new file mode 100644
index 0000000000..a98d3e2145
--- /dev/null
+++ b/arch/arm/dts/tegra30-asus-nexus7-grouper-E1565.dts
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "tegra30-asus-grouper-common.dtsi"
+
+/ {
+ model = "ASUS Google Nexus 7 (Project Nakasi / ME370T) E1565";
+ compatible = "asus,grouper", "nvidia,tegra30";
+
+ i2c at 7000d000 {
+ pmic: max77663 at 3c {
+ compatible = "maxim,max77663";
+ reg = <0x3c>;
+
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+
+ system-power-controller;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ regulators {
+ vdd_1v8: sd2 {
+ regulator-name = "vdd_1v8_gen";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ /* eMMC VDD */
+ vcore_emmc: ldo3 {
+ regulator-name = "vcore_emmc";
+ regulator-min-microvolt = <2850000>;
+ regulator-max-microvolt = <3100000>;
+ regulator-always-on;
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/dts/tegra30-asus-nexus7-grouper-PM269.dts b/arch/arm/dts/tegra30-asus-nexus7-grouper-PM269.dts
new file mode 100644
index 0000000000..44ea218a47
--- /dev/null
+++ b/arch/arm/dts/tegra30-asus-nexus7-grouper-PM269.dts
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "tegra30-asus-grouper-common.dtsi"
+
+/ {
+ model = "ASUS Google Nexus 7 (Project Nakasi / ME370T) PM269";
+ compatible = "asus,grouper", "nvidia,tegra30";
+
+ i2c at 7000d000 {
+ /* Texas Instruments TPS659110 PMIC */
+ pmic: tps65911 at 2d {
+ compatible = "ti,tps65911";
+ reg = <0x2d>;
+
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+
+ ti,system-power-controller;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ regulators {
+ /* eMMC VDD */
+ vcore_emmc: ldo1 {
+ regulator-name = "vdd_emmc_core";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/dts/tegra30-asus-nexus7-tilapia-E1565.dts b/arch/arm/dts/tegra30-asus-nexus7-tilapia-E1565.dts
new file mode 100644
index 0000000000..812d5a1ba7
--- /dev/null
+++ b/arch/arm/dts/tegra30-asus-nexus7-tilapia-E1565.dts
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "tegra30-asus-grouper-common.dtsi"
+
+/ {
+ model = "ASUS Google Nexus 7 (Project Bach / ME370TG) E1565";
+ compatible = "asus,tilapia", "nvidia,tegra30";
+
+ i2c at 7000d000 {
+ pmic: max77663 at 3c {
+ compatible = "maxim,max77663";
+ reg = <0x3c>;
+
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+
+ system-power-controller;
+
+ #gpio-cells = <2>;
+ gpio-controller;
+
+ regulators {
+ vdd_1v8: sd2 {
+ regulator-name = "vdd_1v8_gen";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ /* eMMC VDD */
+ vcore_emmc: ldo3 {
+ regulator-name = "vcore_emmc";
+ regulator-min-microvolt = <2850000>;
+ regulator-max-microvolt = <3100000>;
+ regulator-always-on;
+ };
+ };
+ };
+ };
+
+ panel {
+ display-timings {
+ timing at 0 {
+ /* 1280x800 at 60Hz */
+ clock-frequency = <81750000>;
+
+ hactive = <800>;
+ hfront-porch = <64>;
+ hback-porch = <128>;
+ hsync-len = <64>;
+
+ vactive = <1280>;
+ vfront-porch = <5>;
+ vback-porch = <2>;
+ vsync-len = <1>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/mach-tegra/tegra30/Kconfig b/arch/arm/mach-tegra/tegra30/Kconfig
index 4f78d0ba97..6cbb73ebee 100644
--- a/arch/arm/mach-tegra/tegra30/Kconfig
+++ b/arch/arm/mach-tegra/tegra30/Kconfig
@@ -20,6 +20,10 @@ config TARGET_COLIBRI_T30
bool "Toradex Colibri T30 board"
select BOARD_LATE_INIT
+config TARGET_GROUPER
+ bool "Asus and Google Grouper board"
+ select BOARD_LATE_INIT
+
config TARGET_TEC_NG
bool "Avionic Design TEC-NG board"
select BOARD_LATE_INIT
@@ -37,6 +41,7 @@ source "board/toradex/apalis_t30/Kconfig"
source "board/nvidia/beaver/Kconfig"
source "board/nvidia/cardhu/Kconfig"
source "board/toradex/colibri_t30/Kconfig"
+source "board/asus/grouper/Kconfig"
source "board/avionic-design/tec-ng/Kconfig"
source "board/asus/transformer-t30/Kconfig"
diff --git a/board/asus/grouper/Kconfig b/board/asus/grouper/Kconfig
new file mode 100644
index 0000000000..912c6c5fba
--- /dev/null
+++ b/board/asus/grouper/Kconfig
@@ -0,0 +1,22 @@
+if TARGET_GROUPER
+
+config SYS_BOARD
+ default "grouper"
+
+config SYS_VENDOR
+ default "asus"
+
+config SYS_CONFIG_NAME
+ default "grouper"
+
+config GROUPER_TPS65911
+ bool "Enable support TI TPS65911 PMIC"
+ select CMD_POWEROFF
+ default n
+
+config GROUPER_MAX77663
+ bool "Enable support MAXIM MAX77663 PMIC"
+ select CMD_POWEROFF
+ default n
+
+endif
diff --git a/board/asus/grouper/MAINTAINERS b/board/asus/grouper/MAINTAINERS
new file mode 100644
index 0000000000..18b4f0641f
--- /dev/null
+++ b/board/asus/grouper/MAINTAINERS
@@ -0,0 +1,10 @@
+GROUPER BOARD
+M: Svyatoslav Ryhel <clamor95 at gmail.com>
+S: Maintained
+F: board/asus/grouper/
+F: configs/grouper_E1565.config
+F: configs/grouper_PM269.config
+F: configs/tilapia.config
+F: configs/grouper_common_defconfig
+F: doc/board/asus/grouper_common.rst
+F: include/configs/grouper.h
diff --git a/board/asus/grouper/Makefile b/board/asus/grouper/Makefile
new file mode 100644
index 0000000000..e4a477a366
--- /dev/null
+++ b/board/asus/grouper/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2010-2012
+# NVIDIA Corporation <www.nvidia.com>
+#
+# (C) Copyright 2021
+# Svyatoslav Ryhel <clamor95 at gmail.com>
+
+ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_GROUPER_MAX77663) += grouper-spl-max.o
+obj-$(CONFIG_GROUPER_TPS65911) += grouper-spl-ti.o
+endif
+
+obj-y += grouper.o
diff --git a/board/asus/grouper/grouper-spl-max.c b/board/asus/grouper/grouper-spl-max.c
new file mode 100644
index 0000000000..844383766a
--- /dev/null
+++ b/board/asus/grouper/grouper-spl-max.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * T30 Grouper MAX SPL stage configuration
+ *
+ * (C) Copyright 2010-2013
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * (C) Copyright 2022
+ * Svyatoslav Ryhel <clamor95 at gmail.com>
+ */
+
+#include <common.h>
+#include <asm/arch-tegra/tegra_i2c.h>
+#include <linux/delay.h>
+
+#define MAX77663_I2C_ADDR (0x3C << 1)
+
+#define MAX77663_REG_SD0 0x16
+#define MAX77663_REG_SD0_DATA (0x2100 | MAX77663_REG_SD0)
+#define MAX77663_REG_SD1 0x17
+#define MAX77663_REG_SD1_DATA (0x3000 | MAX77663_REG_SD1)
+#define MAX77663_REG_LDO4 0x2B
+#define MAX77663_REG_LDO4_DATA (0xE000 | MAX77663_REG_LDO4)
+
+#define MAX77663_REG_GPIO4 0x3A
+#define MAX77663_REG_GPIO4_DATA (0x0100 | MAX77663_REG_GPIO4)
+
+void pmic_enable_cpu_vdd(void)
+{
+ /* Set VDD_CORE to 1.200V. */
+ tegra_i2c_ll_write(MAX77663_I2C_ADDR, MAX77663_REG_SD1_DATA);
+
+ udelay(1000);
+
+ /* Bring up VDD_CPU to 1.0125V. */
+ tegra_i2c_ll_write(MAX77663_I2C_ADDR, MAX77663_REG_SD0_DATA);
+ udelay(1000);
+
+ /* Bring up VDD_RTC to 1.200V. */
+ tegra_i2c_ll_write(MAX77663_I2C_ADDR, MAX77663_REG_LDO4_DATA);
+ udelay(10 * 1000);
+
+ /* Set 32k-out gpio state */
+ tegra_i2c_ll_write(MAX77663_I2C_ADDR, MAX77663_REG_GPIO4_DATA);
+}
diff --git a/board/asus/grouper/grouper-spl-ti.c b/board/asus/grouper/grouper-spl-ti.c
new file mode 100644
index 0000000000..e5b78f0121
--- /dev/null
+++ b/board/asus/grouper/grouper-spl-ti.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * T30 Grouper TI SPL stage configuration
+ *
+ * (C) Copyright 2010-2013
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * (C) Copyright 2022
+ * Svyatoslav Ryhel <clamor95 at gmail.com>
+ */
+
+#include <common.h>
+#include <asm/arch-tegra/tegra_i2c.h>
+#include <linux/delay.h>
+
+#define TPS65911_I2C_ADDR (0x2D << 1)
+#define TPS65911_VDDCTRL_OP_REG 0x28
+#define TPS65911_VDDCTRL_SR_REG 0x27
+#define TPS65911_VDDCTRL_OP_DATA (0x2400 | TPS65911_VDDCTRL_OP_REG)
+#define TPS65911_VDDCTRL_SR_DATA (0x0100 | TPS65911_VDDCTRL_SR_REG)
+
+#define TPS62361B_I2C_ADDR (0x60 << 1)
+#define TPS62361B_SET3_REG 0x03
+#define TPS62361B_SET3_DATA (0x4600 | TPS62361B_SET3_REG)
+
+void pmic_enable_cpu_vdd(void)
+{
+ /* Set VDD_CORE to 1.200V. */
+ tegra_i2c_ll_write(TPS62361B_I2C_ADDR, TPS62361B_SET3_DATA);
+
+ udelay(1000);
+
+ /*
+ * Bring up CPU VDD via the TPS65911x PMIC on the DVC I2C bus.
+ * First set VDD to 1.0125V, then enable the VDD regulator.
+ */
+ tegra_i2c_ll_write(TPS65911_I2C_ADDR, TPS65911_VDDCTRL_OP_DATA);
+ udelay(1000);
+ tegra_i2c_ll_write(TPS65911_I2C_ADDR, TPS65911_VDDCTRL_SR_DATA);
+ udelay(10 * 1000);
+}
diff --git a/board/asus/grouper/grouper.c b/board/asus/grouper/grouper.c
new file mode 100644
index 0000000000..2769313e68
--- /dev/null
+++ b/board/asus/grouper/grouper.c
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2010-2013
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * (C) Copyright 2021
+ * Svyatoslav Ryhel <clamor95 at gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <env.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <log.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/gp_padctrl.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch-tegra/fuse.h>
+#include <asm/gpio.h>
+#include <linux/delay.h>
+#include "pinmux-config-grouper.h"
+
+#define TPS65911_I2C_ADDRESS 0x2D
+
+#define TPS65911_REG_LDO1 0x30
+#define TPS65911_REG_DEVCTRL 0x3F
+#define DEVCTRL_PWR_OFF_MASK BIT(7)
+#define DEVCTRL_DEV_ON_MASK BIT(2)
+#define DEVCTRL_DEV_OFF_MASK BIT(0)
+
+#define MAX77663_I2C_ADDRESS 0x3C
+
+#define MAX77663_REG_SD2 0x18
+#define MAX77663_REG_LDO3 0x29
+#define MAX77663_REG_ONOFF_CFG1 0x41
+#define ONOFF_PWR_OFF BIT(1)
+
+#ifdef CONFIG_CMD_POWEROFF
+#ifdef CONFIG_GROUPER_TPS65911
+int do_poweroff(struct cmd_tbl *cmdtp,
+ int flag, int argc, char *const argv[])
+{
+ struct udevice *dev;
+ uchar data_buffer[1];
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, TPS65911_I2C_ADDRESS, 1, &dev);
+ if (ret) {
+ log_debug("cannot find PMIC I2C chip\n");
+ return 0;
+ }
+
+ ret = dm_i2c_read(dev, TPS65911_REG_DEVCTRL, data_buffer, 1);
+ if (ret)
+ return ret;
+
+ data_buffer[0] |= DEVCTRL_PWR_OFF_MASK;
+
+ ret = dm_i2c_write(dev, TPS65911_REG_DEVCTRL, data_buffer, 1);
+ if (ret)
+ return ret;
+
+ data_buffer[0] |= DEVCTRL_DEV_OFF_MASK;
+ data_buffer[0] &= ~DEVCTRL_DEV_ON_MASK;
+
+ ret = dm_i2c_write(dev, TPS65911_REG_DEVCTRL, data_buffer, 1);
+ if (ret)
+ return ret;
+
+ // wait some time and then print error
+ mdelay(5000);
+
+ printf("Failed to power off!!!\n");
+ return 1;
+}
+#endif /* CONFIG_GROUPER_TPS65911 */
+
+#ifdef CONFIG_GROUPER_MAX77663
+int do_poweroff(struct cmd_tbl *cmdtp,
+ int flag, int argc, char *const argv[])
+{
+ struct udevice *dev;
+ uchar data_buffer[1];
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, MAX77663_I2C_ADDRESS, 1, &dev);
+ if (ret) {
+ log_debug("cannot find PMIC I2C chip\n");
+ return 0;
+ }
+
+ ret = dm_i2c_read(dev, MAX77663_REG_ONOFF_CFG1, data_buffer, 1);
+ if (ret)
+ return ret;
+
+ data_buffer[0] |= ONOFF_PWR_OFF;
+
+ ret = dm_i2c_write(dev, MAX77663_REG_ONOFF_CFG1, data_buffer, 1);
+ if (ret)
+ return ret;
+
+ // wait some time and then print error
+ mdelay(5000);
+
+ printf("Failed to power off!!!\n");
+ return 1;
+}
+#endif /* CONFIG_GROUPER_MAX77663 */
+#endif /* CONFIG_CMD_POWEROFF */
+
+/*
+ * Routine: pinmux_init
+ * Description: Do individual peripheral pinmux configs
+ */
+void pinmux_init(void)
+{
+ pinmux_config_pingrp_table(grouper_pinmux_common,
+ ARRAY_SIZE(grouper_pinmux_common));
+
+ pinmux_config_drvgrp_table(grouper_padctrl,
+ ARRAY_SIZE(grouper_padctrl));
+}
+
+#ifdef CONFIG_MMC_SDHCI_TEGRA
+static void __maybe_unused tps65911_voltage_init(void)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, TPS65911_I2C_ADDRESS, 1, &dev);
+ if (ret) {
+ log_debug("cannot find PMIC I2C chip\n");
+ return;
+ }
+
+ /* TPS659110: LDO1_REG = 3.3v, ACTIVE to SDMMC4 */
+ ret = dm_i2c_reg_write(dev, TPS65911_REG_LDO1, 0xC9);
+ if (ret)
+ log_debug("vcore_emmc set failed: %d\n", ret);
+}
+
+static void __maybe_unused max77663_voltage_init(void)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, MAX77663_I2C_ADDRESS, 1, &dev);
+ if (ret) {
+ log_debug("cannot find PMIC I2C chip\n");
+ return;
+ }
+
+ /* 0x60 for 1.8v, bit7:0 = voltage */
+ ret = dm_i2c_reg_write(dev, MAX77663_REG_SD2, 0x60);
+ if (ret)
+ log_debug("vdd_1v8_vio set failed: %d\n", ret);
+
+ /* 0xEC for 3.00v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
+ ret = dm_i2c_reg_write(dev, MAX77663_REG_LDO3, 0xEC);
+ if (ret)
+ log_debug("vcore_emmc set failed: %d\n", ret);
+}
+
+/*
+ * Routine: pin_mux_mmc
+ * Description: setup the MMC muxes, power rails, etc.
+ */
+void pin_mux_mmc(void)
+{
+#ifdef CONFIG_GROUPER_MAX77663
+ /* Bring up eMMC power on MAX PMIC */
+ max77663_voltage_init();
+#endif
+
+#ifdef CONFIG_GROUPER_TPS65911
+ /* Bring up eMMC power on TI PMIC */
+ tps65911_voltage_init();
+#endif
+}
+#endif /* MMC */
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+ /* Remove TrustZone nodes */
+ fdt_del_node_and_alias(blob, "/firmware");
+ fdt_del_node_and_alias(blob, "/reserved-memory/trustzone at bfe00000");
+
+ return 0;
+}
+#endif
+
+void nvidia_board_late_init(void)
+{
+ char serialno_str[17];
+
+ /* Set chip id as serialno */
+ sprintf(serialno_str, "%016llx", tegra_chip_uid());
+ env_set("serial#", serialno_str);
+ env_set("platform", "Tegra 3 T30");
+}
diff --git a/board/asus/grouper/pinmux-config-grouper.h b/board/asus/grouper/pinmux-config-grouper.h
new file mode 100644
index 0000000000..98134f74f1
--- /dev/null
+++ b/board/asus/grouper/pinmux-config-grouper.h
@@ -0,0 +1,362 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved.
+ */
+
+#ifndef _PINMUX_CONFIG_GROUPER_H_
+#define _PINMUX_CONFIG_GROUPER_H_
+
+#define DEFAULT_PINMUX(_pingrp, _mux, _pull, _tri, _io) \
+ { \
+ .pingrp = PMUX_PINGRP_##_pingrp, \
+ .func = PMUX_FUNC_##_mux, \
+ .pull = PMUX_PULL_##_pull, \
+ .tristate = PMUX_TRI_##_tri, \
+ .io = PMUX_PIN_##_io, \
+ .lock = PMUX_PIN_LOCK_DEFAULT, \
+ .od = PMUX_PIN_OD_DEFAULT, \
+ .ioreset = PMUX_PIN_IO_RESET_DEFAULT, \
+ }
+
+#define I2C_PINMUX(_pingrp, _mux, _pull, _tri, _io, _lock, _od) \
+ { \
+ .pingrp = PMUX_PINGRP_##_pingrp, \
+ .func = PMUX_FUNC_##_mux, \
+ .pull = PMUX_PULL_##_pull, \
+ .tristate = PMUX_TRI_##_tri, \
+ .io = PMUX_PIN_##_io, \
+ .lock = PMUX_PIN_LOCK_##_lock, \
+ .od = PMUX_PIN_OD_##_od, \
+ .ioreset = PMUX_PIN_IO_RESET_DEFAULT, \
+ }
+
+#define LV_PINMUX(_pingrp, _mux, _pull, _tri, _io, _lock, _ioreset) \
+ { \
+ .pingrp = PMUX_PINGRP_##_pingrp, \
+ .func = PMUX_FUNC_##_mux, \
+ .pull = PMUX_PULL_##_pull, \
+ .tristate = PMUX_TRI_##_tri, \
+ .io = PMUX_PIN_##_io, \
+ .lock = PMUX_PIN_LOCK_##_lock, \
+ .od = PMUX_PIN_OD_DEFAULT, \
+ .ioreset = PMUX_PIN_IO_RESET_##_ioreset \
+ }
+
+#define DEFAULT_PADCFG(_drvgrp, _slwf, _slwr, _drvup, _drvdn, _lpmd, _schmt, _hsm) \
+ { \
+ .drvgrp = PMUX_DRVGRP_##_drvgrp, \
+ .slwf = _slwf, \
+ .slwr = _slwr, \
+ .drvup = _drvup, \
+ .drvdn = _drvdn, \
+ .lpmd = PMUX_LPMD_##_lpmd, \
+ .schmt = PMUX_SCHMT_##_schmt, \
+ .hsm = PMUX_HSM_##_hsm, \
+ }
+
+static struct pmux_pingrp_config grouper_pinmux_common[] = {
+ /* SDMMC1 pinmux */
+ DEFAULT_PINMUX(SDMMC1_CLK_PZ0, SDMMC1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC1_CMD_PZ1, SDMMC1, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC1_DAT3_PY4, SDMMC1, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC1_DAT2_PY5, SDMMC1, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC1_DAT1_PY6, SDMMC1, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC1_DAT0_PY7, SDMMC1, UP, NORMAL, INPUT),
+
+ /* SDMMC3 pinmux */
+ DEFAULT_PINMUX(SDMMC3_CLK_PA6, SDMMC3, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_CMD_PA7, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT0_PB7, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT1_PB6, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT2_PB5, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT3_PB4, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT4_PD1, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT5_PD0, SDMMC3, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT6_PD3, SDMMC3, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(SDMMC3_DAT7_PD4, SDMMC3, UP, NORMAL, INPUT),
+
+ /* SDMMC4 pinmux */
+ LV_PINMUX(SDMMC4_CLK_PCC4, SDMMC4, NORMAL, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_CMD_PT7, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT0_PAA0, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT1_PAA1, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT2_PAA2, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT3_PAA3, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT4_PAA4, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT5_PAA5, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT6_PAA6, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_DAT7_PAA7, SDMMC4, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(SDMMC4_RST_N_PCC3, RSVD2, DOWN, NORMAL, INPUT, DISABLE, DISABLE),
+
+ /* I2C pinmux */
+ I2C_PINMUX(GEN1_I2C_SCL_PC4, I2C1, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(GEN1_I2C_SDA_PC5, I2C1, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(GEN2_I2C_SCL_PT5, I2C2, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(GEN2_I2C_SDA_PT6, I2C2, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(CAM_I2C_SCL_PBB1, I2C3, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(CAM_I2C_SDA_PBB2, I2C3, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(DDC_SCL_PV4, I2C4, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(DDC_SDA_PV5, I2C4, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(PWR_I2C_SCL_PZ6, I2CPWR, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+ I2C_PINMUX(PWR_I2C_SDA_PZ7, I2CPWR, NORMAL, NORMAL, INPUT, DISABLE, ENABLE),
+
+ /* HDMI-CEC pinmux */
+ DEFAULT_PINMUX(HDMI_CEC_PEE3, CEC, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(HDMI_INT_PN7, RSVD1, NORMAL, TRISTATE, INPUT),
+
+ /* ULPI pinmux */
+ DEFAULT_PINMUX(ULPI_DATA0_PO1, UARTA, DOWN, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(ULPI_DATA1_PO2, UARTA, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(ULPI_DATA2_PO3, UARTA, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(ULPI_DATA3_PO4, ULPI, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(ULPI_DATA4_PO5, UARTA, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(ULPI_DATA5_PO6, UARTA, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(ULPI_DATA6_PO7, UARTA, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(ULPI_DATA7_PO0, UARTA, UP, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(ULPI_CLK_PY0, ULPI, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(ULPI_DIR_PY1, ULPI, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(ULPI_NXT_PY2, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(ULPI_STP_PY3, RSVD1, NORMAL, TRISTATE, OUTPUT),
+
+ /* DAP3 pinmux */
+ DEFAULT_PINMUX(DAP3_FS_PP0, I2S2, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(DAP3_DIN_PP1, I2S2, DOWN, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP3_DOUT_PP2, I2S2, DOWN, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP3_SCLK_PP3, I2S2, DOWN, TRISTATE, INPUT),
+
+ DEFAULT_PINMUX(PV0, RSVD1, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(PV1, RSVD1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PV2, OWR, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(PV3, RSVD1, NORMAL, TRISTATE, INPUT),
+
+ /* CLK2 pinmux */
+ DEFAULT_PINMUX(CLK2_OUT_PW5, EXTPERIPH2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(CLK2_REQ_PCC5, DAP, NORMAL, NORMAL, INPUT),
+
+ /* LCD pinmux */
+ DEFAULT_PINMUX(LCD_PWR1_PC1, DISPLAYA, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(LCD_PWR2_PC6, DISPLAYA, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(LCD_SDIN_PZ2, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_SDOUT_PN5, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_WR_N_PZ3, DISPLAYA, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_CS0_N_PN4, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_DC0_PN6, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_SCK_PZ4, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_PWR0_PB2, DISPLAYA, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(LCD_PCLK_PB3, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_DE_PJ1, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_HSYNC_PJ3, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_VSYNC_PJ4, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D0_PE0, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D1_PE1, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D2_PE2, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D3_PE3, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D4_PE4, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D5_PE5, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D6_PE6, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D7_PE7, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D8_PF0, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D9_PF1, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D10_PF2, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D11_PF3, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D12_PF4, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D13_PF5, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D14_PF6, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D15_PF7, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D16_PM0, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D17_PM1, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D18_PM2, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D19_PM3, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D20_PM4, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D21_PM5, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D22_PM6, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_D23_PM7, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_CS1_N_PW0, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(LCD_M1_PW1, DISPLAYA, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(LCD_DC1_PD2, DISPLAYA, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(CRT_HSYNC_PV6, CRT, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(CRT_VSYNC_PV7, CRT, NORMAL, NORMAL, OUTPUT),
+
+ /* VI-group pinmux */
+ LV_PINMUX(VI_D0_PT4, RSVD1, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D1_PD5, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D2_PL0, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D3_PL1, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D4_PL2, VI, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D5_PL3, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D6_PL4, VI, UP, NORMAL, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D7_PL5, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D8_PL6, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D9_PL7, SDMMC2, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D10_PT2, RSVD1, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_D11_PT3, RSVD1, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_PCLK_PT0, SDMMC2, UP, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_MCLK_PT1, RSVD1, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_HSYNC_PD7, RSVD1, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+ LV_PINMUX(VI_VSYNC_PD6, RSVD1, DOWN, TRISTATE, INPUT, DISABLE, DISABLE),
+
+ /* UART-B pinmux */
+ DEFAULT_PINMUX(UART2_RXD_PC3, UARTB, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(UART2_TXD_PC2, UARTB, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(UART2_RTS_N_PJ6, UARTB, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(UART2_CTS_N_PJ5, UARTB, NORMAL, NORMAL, INPUT),
+
+ /* UART-C pinmux */
+ DEFAULT_PINMUX(UART3_TXD_PW6, UARTC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(UART3_RXD_PW7, UARTC, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(UART3_CTS_N_PA1, UARTC, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(UART3_RTS_N_PC0, UARTC, NORMAL, NORMAL, OUTPUT),
+
+ /* U-gpio group pinmux */
+ DEFAULT_PINMUX(PU0, RSVD4, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PU1, RSVD1, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(PU2, RSVD1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PU3, RSVD4, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PU4, PWM1, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(PU5, PWM2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PU6, RSVD4, NORMAL, NORMAL, INPUT),
+
+ /* DAP4 pinmux */
+ DEFAULT_PINMUX(DAP4_FS_PP4, I2S3, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP4_DIN_PP5, I2S3, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP4_DOUT_PP6, I2S3, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP4_SCLK_PP7, I2S3, NORMAL, NORMAL, INPUT),
+
+ /* CLK3 pinmux */
+ DEFAULT_PINMUX(CLK3_OUT_PEE0, EXTPERIPH3, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(CLK3_REQ_PEE1, DEV3, NORMAL, NORMAL, INPUT),
+
+ DEFAULT_PINMUX(CAM_MCLK_PCC0, VI_ALT3, DOWN, NORMAL, INPUT),
+
+ DEFAULT_PINMUX(PCC1, RSVD2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PBB0, RSVD2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PBB3, VGP3, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PBB4, VGP4, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PBB5, VGP5, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PBB6, VGP6, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PBB7, I2S4, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PCC2, I2S4, NORMAL, NORMAL, INPUT),
+
+ DEFAULT_PINMUX(JTAG_RTCK_PU7, RTCK, UP, NORMAL, INPUT),
+
+ /* KBC keys */
+ DEFAULT_PINMUX(KB_ROW0_PR0, RSVD4, UP, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW1_PR1, KBC, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW2_PR2, KBC, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_ROW3_PR3, KBC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW4_PR4, KBC, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_ROW5_PR5, KBC, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_ROW6_PR6, KBC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW7_PR7, KBC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW8_PS0, KBC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW9_PS1, KBC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW10_PS2, KBC, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW11_PS3, KBC, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(KB_ROW12_PS4, KBC, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(KB_ROW13_PS5, KBC, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(KB_ROW14_PS6, KBC, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_ROW15_PS7, KBC, NORMAL, NORMAL, OUTPUT),
+
+ DEFAULT_PINMUX(KB_COL0_PQ0, KBC, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(KB_COL1_PQ1, KBC, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(KB_COL2_PQ2, RSVD4, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_COL3_PQ3, RSVD4, UP, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_COL4_PQ4, KBC, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_COL5_PQ5, KBC, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(KB_COL6_PQ6, KBC, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(KB_COL7_PQ7, KBC, NORMAL, TRISTATE, INPUT),
+
+ /* CLK */
+ DEFAULT_PINMUX(CLK_32K_OUT_PA0, BLINK, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(SYS_CLK_REQ_PZ5, SYSCLK, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(OWR, OWR, NORMAL, NORMAL, INPUT),
+
+ /* DAP1 pinmux */
+ DEFAULT_PINMUX(DAP1_FS_PN0, I2S0, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP1_DIN_PN1, I2S0, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP1_DOUT_PN2, I2S0, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP1_SCLK_PN3, I2S0, NORMAL, NORMAL, INPUT),
+
+ /* CLK1 pinmux */
+ DEFAULT_PINMUX(CLK1_REQ_PEE2, DAP, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(CLK1_OUT_PW4, EXTPERIPH1, NORMAL, NORMAL, INPUT),
+
+ /* SPDIF pinmux */
+ DEFAULT_PINMUX(SPDIF_IN_PK6, SPDIF, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPDIF_OUT_PK5, SPDIF, NORMAL, NORMAL, OUTPUT),
+
+ /* DAP2 pinmux */
+ DEFAULT_PINMUX(DAP2_FS_PA2, I2S1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP2_DIN_PA4, I2S1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP2_DOUT_PA5, I2S1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(DAP2_SCLK_PA3, I2S1, NORMAL, NORMAL, INPUT),
+
+ /* SPI pinmux */
+ DEFAULT_PINMUX(SPI1_MOSI_PX4, SPI1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI1_SCK_PX5, SPI1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI1_CS0_N_PX6, SPI1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI1_MISO_PX7, SPI1, NORMAL, NORMAL, INPUT),
+
+ DEFAULT_PINMUX(SPI2_MOSI_PX0, SPI2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI2_MISO_PX1, SPI2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI2_SCK_PX2, SPI2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI2_CS1_N_PW2, SPI2, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(SPI2_CS2_N_PW3, SPI2, NORMAL, NORMAL, INPUT),
+
+ /* PEX pinmux */
+ DEFAULT_PINMUX(PEX_L0_PRSNT_N_PDD0, PCIE, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(PEX_L0_RST_N_PDD1, PCIE, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(PEX_L0_CLKREQ_N_PDD2, PCIE, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(PEX_WAKE_N_PDD3, PCIE, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PEX_L1_PRSNT_N_PDD4, PCIE, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(PEX_L1_RST_N_PDD5, PCIE, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(PEX_L1_CLKREQ_N_PDD6, PCIE, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(PEX_L2_PRSNT_N_PDD7, PCIE, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(PEX_L2_RST_N_PCC6, PCIE, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(PEX_L2_CLKREQ_N_PCC7, PCIE, NORMAL, NORMAL, OUTPUT),
+
+ /* GMI pinmux */
+ DEFAULT_PINMUX(GMI_WP_N_PC7, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_IORDY_PI5, RSVD1, UP, NORMAL, INPUT),
+ DEFAULT_PINMUX(GMI_WAIT_PI7, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_ADV_N_PK0, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_CLK_PK1, NAND, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_CS0_N_PJ0, RSVD1, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(GMI_CS1_N_PJ2, RSVD1, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(GMI_CS2_N_PK3, RSVD1, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(GMI_CS3_N_PK4, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_CS4_N_PK2, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_CS6_N_PI3, GMI, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_CS7_N_PI6, NAND, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD0_PG0, RSVD1, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD1_PG1, RSVD1, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD2_PG2, RSVD1, DOWN, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD3_PG3, RSVD1, DOWN, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD4_PG4, NAND, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(GMI_AD5_PG5, NAND, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(GMI_AD6_PG6, RSVD1, DOWN, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD7_PG7, RSVD1, DOWN, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD8_PH0, PWM0, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD9_PH1, RSVD4, DOWN, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD10_PH2, PWM2, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD11_PH3, PWM3, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD12_PH4, RSVD1, NORMAL, TRISTATE, INPUT),
+ DEFAULT_PINMUX(GMI_AD13_PH5, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD14_PH6, RSVD1, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_AD15_PH7, RSVD1, UP, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_A16_PJ7, UARTD, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_A17_PB0, UARTD, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(GMI_A18_PB1, UARTD, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(GMI_A19_PK7, UARTD, NORMAL, NORMAL, OUTPUT),
+ DEFAULT_PINMUX(GMI_WR_N_PI0, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_OE_N_PI1, RSVD1, NORMAL, TRISTATE, OUTPUT),
+ DEFAULT_PINMUX(GMI_DQS_PI2, RSVD1, NORMAL, NORMAL, INPUT),
+ DEFAULT_PINMUX(GMI_RST_N_PI4, NAND, UP, NORMAL, OUTPUT),
+};
+
+static struct pmux_drvgrp_config grouper_padctrl[] = {
+ /* (_drvgrp, _slwf, _slwr, _drvup, _drvdn, _lpmd, _schmt, _hsm) */
+ DEFAULT_PADCFG(SDIO1, SDIOCFG_DRVUP_SLWF, SDIOCFG_DRVDN_SLWR, \
+ SDIOCFG_DRVUP, SDIOCFG_DRVDN, NONE, DISABLE, DISABLE),
+};
+#endif /* _PINMUX_CONFIG_GROUPER_H_ */
diff --git a/configs/grouper_E1565.config b/configs/grouper_E1565.config
new file mode 100644
index 0000000000..4d8d5263fa
--- /dev/null
+++ b/configs/grouper_E1565.config
@@ -0,0 +1,2 @@
+CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-nexus7-grouper-E1565"
+CONFIG_GROUPER_MAX77663=y
diff --git a/configs/grouper_PM269.config b/configs/grouper_PM269.config
new file mode 100644
index 0000000000..fc768b2051
--- /dev/null
+++ b/configs/grouper_PM269.config
@@ -0,0 +1,2 @@
+CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-nexus7-grouper-PM269"
+CONFIG_GROUPER_TPS65911=y
diff --git a/configs/grouper_common_defconfig b/configs/grouper_common_defconfig
new file mode 100644
index 0000000000..36ad0980e7
--- /dev/null
+++ b/configs/grouper_common_defconfig
@@ -0,0 +1,80 @@
+CONFIG_ARM=y
+CONFIG_SYS_L2CACHE_OFF=y
+CONFIG_ARCH_TEGRA=y
+CONFIG_SUPPORT_PASSING_ATAGS=y
+CONFIG_CMDLINE_TAG=y
+CONFIG_INITRD_TAG=y
+CONFIG_TEXT_BASE=0x80110000
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_ENV_SIZE=0x3000
+CONFIG_ENV_OFFSET=0xFFFFD000
+CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-nexus7-grouper-E1565"
+CONFIG_SPL_TEXT_BASE=0x80108000
+CONFIG_SYS_PROMPT="Tegra30 (Grouper) # "
+CONFIG_SPL_STACK=0x800ffffc
+CONFIG_TEGRA30=y
+CONFIG_TARGET_GROUPER=y
+CONFIG_CMD_EBTUPDATE=y
+CONFIG_SYS_LOAD_ADDR=0x82000000
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_BOOTDELAY=0
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_KEYED_CTRLC=y
+CONFIG_BOOTCOMMAND="if run check_button; then bootmenu; fi; run bootcmd_mmc0; poweroff;"
+CONFIG_SPL_FOOTPRINT_LIMIT=y
+CONFIG_SPL_MAX_FOOTPRINT=0x8000
+# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
+CONFIG_SYS_SPL_MALLOC=y
+CONFIG_HAS_CUSTOM_SPL_MALLOC_START=y
+CONFIG_CUSTOM_SYS_SPL_MALLOC_ADDR=0x80090000
+CONFIG_SYS_SPL_MALLOC_SIZE=0x10000
+CONFIG_SYS_MAXARGS=64
+CONFIG_SYS_PBSIZE=2084
+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_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_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_SPL_DM=y
+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_GPIO_HOG=y
+CONFIG_SYS_I2C_TEGRA=y
+CONFIG_BUTTON_KEYBOARD=y
+CONFIG_DM_PMIC=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_PWM_TEGRA=y
+CONFIG_SYS_NS16550=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="ASUS Google"
+CONFIG_USB_GADGET_VENDOR_NUM=0x18d1
+CONFIG_USB_GADGET_PRODUCT_NUM=0x4e41
+CONFIG_CI_UDC=y
+CONFIG_VIDEO=y
+# CONFIG_VIDEO_LOGO is not set
+CONFIG_VIDEO_TEGRA20=y
+# CONFIG_CMD_BOOTEFI_BOOTMGR is not set
diff --git a/configs/tilapia.config b/configs/tilapia.config
new file mode 100644
index 0000000000..1fb0633e3a
--- /dev/null
+++ b/configs/tilapia.config
@@ -0,0 +1,3 @@
+CONFIG_DEFAULT_DEVICE_TREE="tegra30-asus-nexus7-tilapia-E1565"
+CONFIG_GROUPER_MAX77663=y
+CONFIG_SYS_PROMPT="Tegra30 (Tilapia) # "
diff --git a/doc/board/asus/grouper_common.rst b/doc/board/asus/grouper_common.rst
new file mode 100644
index 0000000000..2e4450b40e
--- /dev/null
+++ b/doc/board/asus/grouper_common.rst
@@ -0,0 +1,94 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+U-Boot for the ASUS/Google Nexus 7 (2012)
+=========================================
+
+``DISCLAMER!`` Moving your ASUS/Google Nexus 7 (2012) to use
+U-Boot assumes replacement of the vendor ASUS bootloader. Vendor
+android firmwares will no longer be able to run on the device.
+This replacement IS reversible.
+
+Quick Start
+-----------
+
+- Build U-Boot
+- Pack U-Boot into repart-block
+- Flash repart-block into the eMMC
+- Boot
+- Self Upgrading
+
+Build U-Boot
+------------
+
+Device support is implemented by applying config fragment to a generic
+board defconfig. Valid fragments are ``grouper_E1565.config``,
+``grouper_PM269.config`` and ``tilapia.config``.
+
+.. code-block:: bash
+
+ $ export CROSS_COMPILE=arm-linux-gnueabi-
+ $ make grouper_common_defconfig grouper_E1565.config # For maxim based grouper
+ $ make
+
+After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
+image, ready for flashing (but check the next section for additional
+adjustments).
+
+Pack U-Boot into repar-block
+----------------------------
+
+``DISCLAMER!`` All questions related to re-crypt work should be asked
+in re-crypt repo issues. NOT HERE!
+
+re-crypt is a small script which packs ``u-boot-dtb-tegra.bin`` in
+form usable by device. This process is required only on the first
+installation or to recover the device in case of a failed update.
+You need to know your tablet's individual SBK to continue.
+
+.. code-block:: bash
+
+ $ git clone https://github.com/clamor-s/re-crypt.git
+ $ cd re-crypt # place your u-boot-dtb-regra.bin here
+ $ ./re-crypt.sh -d grouper -k deadbeefdeadc0dedeadd00dfee1dead
+
+Script will produce you a ``repart-block.bin`` ready to flash.
+
+Flash repart-block into the eMMC
+--------------------------------
+
+``DISCLAMER!`` All questions related to NvFlash should be asked
+in the proper place. NOT HERE! Flashing repart-block will erase
+all your eMMC, so make a backup before!
+
+``repart-block.bin`` contains BCT and bootloader in encrypted state
+in form which can just be written RAW at the start of eMMC.
+
+.. code-block:: bash
+
+ $ wheelie --blob blob.bin
+ $ nvflash --resume --rawdevicewrite 0 1024 repart-block.bin
+
+Boot
+----
+
+After flashing ``repart-block.bin`` the device should reboot and turn
+itself off. This is normal behavior if no boot configuration is
+found.
+
+To boot Linux, U-Boot will look for an ``extlinux.conf`` configuration
+on eMMC. Additionally if Volume Down button is pressed while booting
+device will enter bootmenu. Bootmenu contains entries to mount eMMC as
+mass storage, fastboot, reboot, reboot RCM, poweroff, enter U-Boot
+console and update bootloader (check next chapter).
+
+Flashing ``repart-block.bin`` eliminates vendor restriction 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
+eMMC (using ability of u-boot to mount it). Enter bootmenu, choose
+update bootloader option with Power button and U-Boot should update
+itself. Once the process is completed, U-Boot will ask to press any
+button to reboot.
diff --git a/doc/board/asus/index.rst b/doc/board/asus/index.rst
index c59571c8b3..87e535fe34 100644
--- a/doc/board/asus/index.rst
+++ b/doc/board/asus/index.rst
@@ -6,4 +6,5 @@ ASUS
.. toctree::
:maxdepth: 2
+ grouper_common
transformer_t30
diff --git a/include/configs/grouper.h b/include/configs/grouper.h
new file mode 100644
index 0000000000..93304ddc6e
--- /dev/null
+++ b/include/configs/grouper.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <linux/sizes.h>
+
+#include "tegra30-common.h"
+
+/* High-level configuration options */
+#define CFG_TEGRA_BOARD_STRING "ASUS Google Nexus 7 (2012)"
+
+#define GROUPER_FLASH_UBOOT \
+ "flash_uboot=echo Preparing RAM;" \
+ "mw ${kernel_addr_r} 0 ${boot_block_size_r};" \
+ "mw ${ramdisk_addr_r} 0 ${boot_block_size_r};" \
+ "echo Reading BCT;" \
+ "mmc dev 0 1;" \
+ "mmc read ${kernel_addr_r} 0 ${boot_block_size};" \
+ "echo Reading bootloader;" \
+ "if load mmc 0:1 ${ramdisk_addr_r} ${bootloader_file};" \
+ "then echo Calculating bootloader size;" \
+ "size mmc 0:1 ${bootloader_file};" \
+ "ebtupdate ${kernel_addr_r} ${ramdisk_addr_r} ${filesize};" \
+ "echo Writing bootloader to eMMC;" \
+ "mmc dev 0 1;" \
+ "mmc write ${kernel_addr_r} 0 ${boot_block_size};" \
+ "mmc dev 0 2;" \
+ "mmc write ${ramdisk_addr_r} 0 ${boot_block_size};" \
+ "echo Bootloader written successfully;" \
+ "pause 'Press ANY key to reboot device...'; reset;" \
+ "else echo Reading bootloader failed;" \
+ "pause 'Press ANY key to return to bootmenu...'; bootmenu; fi\0"
+
+#define GROUPER_BOOTMENU \
+ GROUPER_FLASH_UBOOT \
+ "bootmenu_0=mount internal storage=usb start && ums 0 mmc 0; bootmenu\0" \
+ "bootmenu_1=fastboot=echo Starting Fastboot protocol ...; fastboot usb 0; bootmenu\0" \
+ "bootmenu_2=update bootloader=run flash_uboot\0" \
+ "bootmenu_3=reboot RCM=enterrcm\0" \
+ "bootmenu_4=reboot=reset\0" \
+ "bootmenu_5=power off=poweroff\0" \
+ "bootmenu_delay=-1\0"
+
+#define BOARD_EXTRA_ENV_SETTINGS \
+ "boot_block_size_r=0x200000\0" \
+ "boot_block_size=0x1000\0" \
+ "bootloader_file=u-boot-dtb-tegra.bin\0" \
+ "check_button=gpio input 131; test $? -eq 0;\0" \
+ "partitions=name=emmc,start=0,size=-,uuid=${uuid_gpt_rootfs}\0" \
+ GROUPER_BOOTMENU
+
+/* Board-specific serial config */
+#define CFG_SYS_NS16550_COM1 NV_PA_APB_UARTA_BASE
+
+#include "tegra-common-post.h"
+
+#endif /* __CONFIG_H */
--
2.39.2
More information about the U-Boot
mailing list