board: lenovo: ideapad-yoga-11: add Lenovo Ideapad Yoga 11 support

The Lenovo IdeaPad Yoga 11 is a hybrid laptop/tablet Windows RT-based
computer released in late 2012. The device uses a 1.3 GHz quad-core
Nvidia Tegra 3 chipset with 2 GB of RAM, features a 11.6 inch 1366x768
screen and 32/64 GB of internal memory that can be supplemented with
a microSDXC card slot, full size SD card slot and 2 full size USB 2.0
ports.

Tested-by: Jethro Bull <jethrob@hotmail.com>
Signed-off-by: Jonas Schwöbel <jonasschwoebel@yahoo.de>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

arch/arm/dts/Makefile

@@ -122,6 +122,7 @@ dtb-$(CONFIG_ARCH_TEGRA) += \
 	tegra30-cardhu.dtb \
 	tegra30-colibri.dtb \
 	tegra30-htc-endeavoru.dtb \
+	tegra30-lenovo-ideapad-yoga-11.dtb \
 	tegra30-lg-p880.dtb \
 	tegra30-lg-p895.dtb \
 	tegra30-microsoft-surface-rt.dtb \

arch/arm/mach-tegra/tegra30/Kconfig

@@ -28,6 +28,10 @@ config TARGET_GROUPER
 	bool "Asus and Google Grouper board"
 	select BOARD_LATE_INIT
 
+config TARGET_IDEAPAD_YOGA_11
+	bool "Lenovo Ideapad Yoga 11 board"
+	select BOARD_LATE_INIT
+
 config TARGET_QC750
 	bool "Wexler QC750 board"
 	select BOARD_LATE_INIT
@@ -59,6 +63,7 @@ source "board/nvidia/cardhu/Kconfig"
 source "board/toradex/colibri_t30/Kconfig"
 source "board/htc/endeavoru/Kconfig"
 source "board/asus/grouper/Kconfig"
+source "board/lenovo/ideapad-yoga-11/Kconfig"
 source "board/wexler/qc750/Kconfig"
 source "board/microsoft/surface-rt/Kconfig"
 source "board/avionic-design/tec-ng/Kconfig"

board/lenovo/ideapad-yoga-11/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_IDEAPAD_YOGA_11
+
+config SYS_BOARD
+	default "ideapad-yoga-11"
+
+config SYS_VENDOR
+	default "lenovo"
+
+config SYS_CONFIG_NAME
+	default "ideapad-yoga-11"
+
+endif

board/lenovo/ideapad-yoga-11/MAINTAINERS

@@ -0,0 +1,7 @@
+Lenovo Ideapad Yoga 11
+M:	Jonas Schwöbel <jonasschwoebel@yahoo.de>
+S:	Maintained
+F:	board/lenovo/ideapad-yoga-11/
+F:	configs/ideapad-yoga-11_defconfig
+F:	doc/board/lenovo/ideapad-yoga-11.rst
+F:	include/configs/ideapad-yoga-11.h

board/lenovo/ideapad-yoga-11/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+#  (C) Copyright 2022
+#  Open Surface RT
+
+obj-$(CONFIG_SPL_BUILD) += ideapad-yoga-11-spl.o

board/lenovo/ideapad-yoga-11/ideapad-yoga-11-spl.c

@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  Ideapad Yoga 11 SPL stage configuration
+ *
+ *  (C) Copyright 2010-2013
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ *  (C) Copyright 2021
+ *  Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+#include <asm/arch/tegra.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_SET2_REG		0x02
+#define TPS62361B_SET2_DATA		(0x4600 | TPS62361B_SET2_REG)
+
+void pmic_enable_cpu_vdd(void)
+{
+	/* Set VDD_CORE to 1.200V. */
+	tegra_i2c_ll_write(TPS62361B_I2C_ADDR, TPS62361B_SET2_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);
+}

configs/ideapad-yoga-11_defconfig

@@ -0,0 +1,84 @@
+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_NR_DRAM_BANKS=2
+CONFIG_ENV_SIZE=0x3000
+CONFIG_ENV_OFFSET=0xFFFFD000
+CONFIG_DEFAULT_DEVICE_TREE="tegra30-lenovo-ideapad-yoga-11"
+CONFIG_SPL_TEXT_BASE=0x80108000
+CONFIG_SPL_STACK=0x800ffffc
+CONFIG_TEGRA30=y
+CONFIG_TARGET_IDEAPAD_YOGA_11=y
+CONFIG_CMD_EBTUPDATE=y
+CONFIG_SYS_LOAD_ADDR=0x82000000
+CONFIG_BUTTON_CMD=y
+CONFIG_BOOTDELAY=0
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_KEYED_CTRLC=y
+CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_PBSIZE=2084
+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="Tegra30 (Ideapad Yoga 11) # "
+# 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_SPI=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_SYS_I2C_TEGRA=y
+CONFIG_BUTTON_KEYBOARD=y
+CONFIG_TEGRA_KEYBOARD=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_DM_PMIC=y
+CONFIG_DM_PMIC_TPS65910=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_TPS65911=y
+CONFIG_PWM_TEGRA=y
+CONFIG_SYS_NS16550=y
+CONFIG_TEGRA20_SLINK=y
+CONFIG_SYSRESET_TPS65910=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_TEGRA=y
+CONFIG_USB_KEYBOARD=y
+CONFIG_USB_GADGET=y
+CONFIG_CI_UDC=y
+CONFIG_VIDEO=y
+# CONFIG_VIDEO_LOGO is not set
+CONFIG_VIDEO_BRIDGE_PARADE_DP501=y
+CONFIG_VIDEO_TEGRA20=y

doc/board/index.rst

@@ -31,6 +31,7 @@ Board-specific doc
    htc/index
    intel/index
    kontron/index
+   lenovo/index
    lg/index
    mediatek/index
    microchip/index

doc/board/lenovo/ideapad-yoga-11.rst

@@ -0,0 +1,41 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+U-Boot for the Lenovo Ideapad Yoga 11 tablet
+============================================
+
+Quick Start
+-----------
+
+- Build U-Boot
+- Boot
+
+Build U-Boot
+------------
+
+.. code-block:: bash
+
+    $ export CROSS_COMPILE=arm-linux-gnueabi-
+    $ make ideapad-yoga-11_defconfig
+    $ make
+
+After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
+image, ready for loading.
+
+Boot
+----
+
+Currently, U-Boot can be preloaded into RAM via the Fusée Gelée. To enter
+RCM protocol use ``power`` and ``volume up`` key combination from powered
+off device. The host PC should recognize an APX device.
+
+Built U-Boot ``u-boot-dtb-tegra.bin`` can be loaded from fusee-tools
+directory with
+
+.. code-block:: bash
+
+    $ ./run_bootloader.sh -s T30 -t ./bct/ideapad-yoga-11.bct
+
+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 loading, the
+device will enter bootmenu. Bootmenu contains entries to mount MicroSD and eMMC
+as mass storage, fastboot, reboot, reboot RCM, poweroffand enter U-Boot console.

doc/board/lenovo/index.rst

@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Lenovo
+=========
+
+.. toctree::
+   :maxdepth: 2
+
+   ideapad-yoga-11

include/configs/ideapad-yoga-11.h

@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include "tegra30-common.h"
+
+/* High-level configuration options */
+#define CFG_TEGRA_BOARD_STRING		"Lenovo Ideapad Yoga 11"
+
+#define IDEAPAD_FLASH_UBOOT \
+	"flash_uboot=sf probe 0:1;" \
+		"echo Dumping current SPI flash content ...;" \
+		"sf read ${kernel_addr_r} 0x0 ${spi_size};" \
+		"if fatwrite mmc 1:1 ${kernel_addr_r} spi-flash-backup.bin ${spi_size};" \
+		"then echo SPI flash content was successfully written into spi-flash-backup.bin;" \
+			"echo Reading SPI flash binary;" \
+			"if load mmc 1:1 ${kernel_addr_r} repart-block.bin;" \
+			"then echo Writing bootloader into SPI flash;" \
+				"sf probe 0:1;" \
+				"sf update ${kernel_addr_r} 0x0 ${spi_size};" \
+				"echo Bootloader SUCCESSFULLY written into SPI flash;" \
+				"pause 'Press ANY key to reboot...'; reset;" \
+			"else echo Preparing RAM;" \
+				"mw ${kernel_addr_r} 0 ${boot_block_size_r};" \
+				"mw ${ramdisk_addr_r} 0 ${boot_block_size_r};" \
+				"echo Reading BCT;" \
+				"sf read ${kernel_addr_r} 0x0 ${boot_block_size_r};" \
+				"echo Reading bootloader;" \
+				"if load mmc 1:1 ${ramdisk_addr_r} ${bootloader_file};" \
+				"then echo Calculating bootloader size;" \
+					"size mmc 1:1 ${bootloader_file};" \
+					"ebtupdate ${kernel_addr_r} ${ramdisk_addr_r} ${filesize};" \
+					"echo Writing bootloader into SPI flash;" \
+					"sf probe 0:1;" \
+					"sf update ${kernel_addr_r} 0x0 ${boot_block_size_r};" \
+					"sf update ${ramdisk_addr_r} ${boot_block_size_r} ${boot_block_size_r};" \
+					"echo Bootloader written SUCCESSFULLY;" \
+					"pause 'Press ANY key to reboot...'; reset;" \
+				"else echo Reading bootloader failed;" \
+					"pause 'Press ANY key to reboot...'; reset; fi;" \
+			"fi;" \
+		"else echo SPI flash backup FAILED! Aborting ...;" \
+			"pause 'Press ANY key to reboot...'; reset; fi\0"
+
+#define IDEAPAD_BOOTMENU \
+	IDEAPAD_FLASH_UBOOT \
+	"bootmenu_0=mount internal storage=usb start && ums 0 mmc 0; bootmenu\0" \
+	"bootmenu_1=mount external storage=usb start && ums 0 mmc 1; bootmenu\0" \
+	"bootmenu_2=fastboot=echo Starting Fastboot protocol ...; fastboot usb 0; bootmenu\0" \
+	"bootmenu_3=update bootloader=run flash_uboot\0" \
+	"bootmenu_4=reboot RCM=enterrcm\0" \
+	"bootmenu_5=reboot=reset\0" \
+	"bootmenu_6=power off=poweroff\0" \
+	"bootmenu_delay=-1\0"
+
+#define BOARD_EXTRA_ENV_SETTINGS \
+	"spi_size=0x400000\0" \
+	"boot_block_size_r=0x200000\0" \
+	"boot_block_size=0x1000\0" \
+	"bootloader_file=u-boot-dtb-tegra.bin\0" \
+	"button_cmd_0_name=Volume Down\0" \
+	"button_cmd_0=bootmenu\0" \
+	"button_cmd_1_name=Lid sensor\0" \
+	"button_cmd_1=poweroff\0" \
+	"partitions=name=emmc,start=0,size=-,uuid=${uuid_gpt_rootfs}\0" \
+	IDEAPAD_BOOTMENU
+
+/* Board-specific serial config */
+#define CFG_SYS_NS16550_COM1		NV_PA_APB_UARTA_BASE
+
+#include "tegra-common-post.h"
+
+#endif /* __CONFIG_H */