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asus: add transformer t20 board support
Board derives from Ventana board. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
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‎arch/arm/dts/tegra20-asus-transformer.dtsi‎

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‎arch/arm/mach-tegra/tegra20/Kconfig‎

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@@ -28,6 +28,10 @@ config TARGET_TEC
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bool "Avionic Design Tamonten Evaluation Carrier"
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select BOARD_LATE_INIT
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config TARGET_TRANSFORMER_T20
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bool "Asus Tegra20 Transformer board"
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select BOARD_LATE_INIT
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config TARGET_TRIMSLICE
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bool "Compulab TrimSlice board"
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select BOARD_LATE_INIT
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config SYS_SOC
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default "tegra20"
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source "board/asus/transformer-t20/Kconfig"
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source "board/nvidia/harmony/Kconfig"
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source "board/avionic-design/medcom-wide/Kconfig"
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source "board/compal/paz00/Kconfig"

‎board/asus/transformer-t20/Kconfig‎

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if TARGET_TRANSFORMER_T20
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config SYS_BOARD
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default "transformer-t20"
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config SYS_VENDOR
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default "asus"
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config SYS_CONFIG_NAME
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default "transformer-t20"
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endif

‎board/asus/transformer-t20/MAINTAINERS‎

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TF101 BOARD
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M: Svyatoslav Ryhel <clamor95@gmail.com>
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S: Maintained
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F: board/asus/transformer-t20/
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F: include/configs/transformer-t20.h
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F: configs/transformer_t20_defconfig

‎board/asus/transformer-t20/Makefile‎

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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# (C) Copyright 2010,2011
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# NVIDIA Corporation <www.nvidia.com>
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#
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# (C) Copyright 2021
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# Svyatoslav Ryhel <clamor95@gmail.com>
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obj-y := transformer-t20.o

‎board/asus/transformer-t20/transformer-t20.c‎

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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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*
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* (C) Copyright 2021
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* Svyatoslav Ryhel <clamor95@gmail.com>
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*/
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/* T20 Transformers derive from Ventana board */
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#include <common.h>
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#include <asm/io.h>
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#include <asm/mach-types.h>
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#include <asm/arch/tegra.h>
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#include <asm/arch-tegra/board.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/funcmux.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/pinmux.h>
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#include <asm/gpio.h>
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#ifdef CONFIG_MMC_SDHCI_TEGRA
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/*
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* Routine: pin_mux_mmc
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* Description: setup the pin muxes/tristate values for the SDMMC(s)
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*/
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void pin_mux_mmc(void)
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{
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funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
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funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_4BIT);
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/* For power GPIO PI6 */
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pinmux_tristate_disable(PMUX_PINGRP_ATA);
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/* For CD GPIO PI5 */
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pinmux_tristate_disable(PMUX_PINGRP_ATC);
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}
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#endif
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void pin_mux_usb(void)
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{
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/* For USB0's GPIO PD0. For now, since we have no pinmux in fdt */
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pinmux_tristate_disable(PMUX_PINGRP_SLXK);
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/* For USB1's ULPI signals */
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funcmux_select(PERIPH_ID_USB2, FUNCMUX_USB2_ULPI);
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pinmux_set_func(PMUX_PINGRP_CDEV2, PMUX_FUNC_PLLP_OUT4);
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pinmux_tristate_disable(PMUX_PINGRP_CDEV2);
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/* USB1 PHY reset GPIO */
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pinmux_tristate_disable(PMUX_PINGRP_UAC);
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}

‎configs/transformer_t20_defconfig‎

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CONFIG_ARM=y
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CONFIG_SYS_L2CACHE_OFF=y
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CONFIG_ARCH_TEGRA=y
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CONFIG_SUPPORT_PASSING_ATAGS=y
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CONFIG_SETUP_MEMORY_TAGS=y
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CONFIG_CMDLINE_TAG=y
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CONFIG_INITRD_TAG=y
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CONFIG_SYS_TEXT_BASE=0x00110000
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CONFIG_NR_DRAM_BANKS=2
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CONFIG_ENV_SIZE=0x2000
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CONFIG_ENV_OFFSET=0xFFFFE000
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CONFIG_DEFAULT_DEVICE_TREE="tegra20-asus-transformer"
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CONFIG_SPL_TEXT_BASE=0x00108000
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CONFIG_TEGRA20=y
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CONFIG_TARGET_TRANSFORMER_T20=y
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CONFIG_SYS_LOAD_ADDR=0x1000000
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CONFIG_DEBUG_LL=y
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CONFIG_DEBUG_UART_PHYS=0x70006300
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CONFIG_OF_SYSTEM_SETUP=y
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CONFIG_BOOTDELAY=0
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CONFIG_AUTOBOOT_KEYED=y
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CONFIG_AUTOBOOT_KEYED_CTRLC=y
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CONFIG_SYS_STDIO_DEREGISTER=y
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CONFIG_SYS_PROMPT="Tegra20 (Transformer) # "
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CONFIG_CMD_BOOTMENU=y
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# CONFIG_CMD_IMI is not set
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CONFIG_CMD_GPIO=y
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CONFIG_CMD_MMC=y
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CONFIG_CMD_USB=y
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# CONFIG_CMD_SETEXPR is not set
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# CONFIG_CMD_NFS is not set
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CONFIG_CMD_FS_GENERIC=y
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CONFIG_CMD_EXT4_WRITE=y
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# CONFIG_SPL_DOS_PARTITION is not set
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# CONFIG_SPL_EFI_PARTITION is not set
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CONFIG_ENV_OVERWRITE=y
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CONFIG_ENV_IS_IN_MMC=y
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CONFIG_SYS_RELOC_GD_ENV_ADDR=y
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CONFIG_SYS_MMC_ENV_PART=2
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CONFIG_SPL_DM=y
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CONFIG_GPIO_KEYS=y
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CONFIG_USB_FUNCTION_FASTBOOT=y
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CONFIG_FASTBOOT_BUF_ADDR=0x11000000
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CONFIG_FASTBOOT_BUF_SIZE=0x10000000
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CONFIG_FASTBOOT_FLASH=y
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CONFIG_FASTBOOT_FLASH_MMC=y
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CONFIG_FASTBOOT_FLASH_MMC_DEV=0
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CONFIG_SYS_I2C_TEGRA=y
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CONFIG_DM_PMIC=y
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CONFIG_DM_REGULATOR=y
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CONFIG_DM_REGULATOR_FIXED=y
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CONFIG_PWM_TEGRA=y
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CONFIG_SYS_NS16550=y
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CONFIG_USB=y
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CONFIG_USB_EHCI_HCD=y
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CONFIG_USB_EHCI_TEGRA=y
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CONFIG_USB_ULPI_VIEWPORT=y
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CONFIG_USB_ULPI=y
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CONFIG_USB_KEYBOARD=y
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CONFIG_USB_GADGET=y
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CONFIG_USB_GADGET_MANUFACTURER="ASUS"
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CONFIG_USB_GADGET_VENDOR_NUM=0x0b05
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CONFIG_CI_UDC=y
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CONFIG_DM_VIDEO=y
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# CONFIG_VIDEO_LOGO is not set
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# CONFIG_VIDEO_BPP8 is not set
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CONFIG_VIDEO_TEGRA20=y

‎include/configs/transformer-common.h‎

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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2022, Svyatoslav Ryhel <clamor95@gmail.com>.
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*/
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#ifndef __TRANSFORMER_COMMON_H
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#define __TRANSFORMER_COMMON_H
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/* High-level configuration options */
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#define CONFIG_TEGRA_BOARD_STRING "ASUS Transformer"
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/*
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* SOS and LNX offset is relative to
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* mmcblk0 start on both t20 and t30
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*/
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#define TRANSFORMER_T20_EMMC_LAYOUT \
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"ebt_offset_r=0x1C00\0" \
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"ebt_size=0x2000\0" \
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"sos_offset_r=0x1C00\0" \
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"sos_size=0x2800\0" \
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"lnx_offset_r=0x4400\0" \
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"lnx_size=0x4000\0"
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#define TRANSFORMER_T30_EMMC_LAYOUT \
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"ebt_offset_r=0x1C00\0" \
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"ebt_size=0x4000\0" \
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"sos_offset_r=0x3C00\0" \
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"sos_size=0x4000\0" \
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"lnx_offset_r=0x7C00\0" \
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"lnx_size=0x4000\0"
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#define TRANSFORMER_BOOTZ \
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"bootkernel=bootz ${kernel_addr_r} - ${fdt_addr_r}\0" \
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"bootrdkernel=bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}\0"
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#define TRANSFORMER_BOOT_SCRIPT \
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"boot_script=echo Loading boot script;" \
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"if load mmc 0:5 ${scriptaddr} uboot-transformer.bcs;" \
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"then env import -t -r ${scriptaddr} ${filesize};" \
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"else echo Boot Configuration NOT FOUND!; fi;" \
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"echo Loading DTB;" \
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"load ${dev_type} ${mmcdev}:${mmcpart} ${fdt_addr_r} ${dtb_file};" \
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"echo Loading Kernel;" \
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"load ${dev_type} ${mmcdev}:${mmcpart} ${kernel_addr_r} ${kernel_file};" \
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"echo Loading Initramfs;" \
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"if load ${dev_type} ${mmcdev}:${mmcpart} ${ramdisk_addr_r} ${ramdisk_file};" \
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"then echo Booting Kernel;" \
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"run bootrdkernel;" \
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"else echo Booting Kernel;" \
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"run bootkernel; fi\0"
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#define TRANSFORMER_BOOT_SOS \
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"boot_sos=echo Reading SOS partition;" \
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"mmc dev;" \
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"if mmc read ${kernel_addr_r} ${sos_offset_r} ${sos_size};" \
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"then echo Booting Kernel;" \
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"bootm ${kernel_addr_r};" \
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"else echo Reading SOS failed; fi\0"
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#define TRANSFORMER_BOOT_LNX \
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"boot_lnx=echo Reading LNX partition;" \
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"mmc dev;" \
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"if mmc read ${kernel_addr_r} ${lnx_offset_r} ${lnx_size};" \
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"then echo Booting Kernel;" \
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"bootm ${kernel_addr_r};" \
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"else echo Reading LNX failed; fi\0"
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#define TRANSFORMER_FLASH_UBOOT \
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"flash_uboot=echo Reading U-Boot binary;" \
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"if load mmc 1:1 ${kernel_addr_r} ${bootloader_file};" \
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"then echo Writing U-Boot into EBT;" \
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"mmc dev 0 1;" \
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"mmc write ${kernel_addr_r} ${ebt_offset_r} ${ebt_size};" \
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"else echo Reading U-Boot failed; fi\0"
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#define TRANSFORMER_FLASH_SPI \
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"update_spi=sf probe 0:1;" \
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"echo Dumping current SPI flash content ...;" \
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"sf read ${kernel_addr_r} 0x0 0x400000;" \
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"if fatwrite mmc 1:1 ${kernel_addr_r} spi-flash-backup.bin 0x400000;" \
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"then echo SPI flash content was successfully written into spi-flash-backup.bin;" \
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"echo Reading bootloader binary;" \
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"if load mmc 1:1 ${kernel_addr_r} bootloader-update.bin;" \
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"then echo Writing bootloader into SPI flash;" \
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"sf probe 0:1;" \
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"sf update ${kernel_addr_r} 0x0 0x400000;" \
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"poweroff;" \
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"else echo Reading bootloader failed;" \
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"poweroff; fi;" \
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"else echo SPI flash backup FAILED! Aborting ...;" \
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"poweroff; fi\0"
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#define TRANSFORMER_FASTBOOT_ALIAS \
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"fastboot_raw_partition_boot=${lnx_offset_r} ${lnx_size} mmcpart 0\0" \
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"fastboot_raw_partition_recovery=${sos_offset_r} ${sos_size} mmcpart 0\0" \
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"fastboot_partition_alias_system=APP\0" \
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"fastboot_partition_alias_cache=CAC\0" \
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"fastboot_partition_alias_misc=MSC\0" \
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"fastboot_partition_alias_staging=USP\0" \
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"fastboot_partition_alias_vendor=VDR\0" \
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"fastboot_partition_alias_userdata=UDA\0"
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#define TRANSFORMER_BOOTMENU \
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TRANSFORMER_BOOT_SCRIPT \
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TRANSFORMER_BOOT_SOS \
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TRANSFORMER_BOOT_LNX \
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TRANSFORMER_FLASH_UBOOT \
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TRANSFORMER_FLASH_SPI \
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TRANSFORMER_FASTBOOT_ALIAS \
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"bootmenu_0=boot with script=run boot_script\0" \
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"bootmenu_1=boot LNX=run boot_lnx\0" \
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"bootmenu_2=boot SOS=run boot_sos\0" \
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"bootmenu_3=fastboot=echo Starting Fastboot protocol ...; fastboot usb 0\0" \
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"bootmenu_4=reboot=reset\0" \
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"bootmenu_5=power off=poweroff\0" \
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"bootmenu_delay=-1\0"
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#define TRANSFORMER_BUTTON_CHECK \
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"check_button=gpio input ${gpio_vol_down}; test $? -eq 0;\0"
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#define TRANSFORMER_DEFAULT_FILESET \
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"kernel_file=vmlinuz\0" \
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"ramdisk_file=uInitrd\0" \
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"bootloader_file=u-boot-dtb-tegra.bin\0"
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#define TRANSFORMER_LOAD_KERNEL \
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"echo Loading Kernel;" \
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"if load mmc ${bootdev}:1 ${kernel_addr_r} ${kernel_file};" \
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"then echo Loading DTB;" \
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"load mmc ${bootdev}:1 ${fdt_addr_r} ${fdtfile};" \
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"setenv bootargs console=ttyS0,115200n8 root=/dev/mmcblk${bootdev}p${rootpart} rw gpt;" \
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"echo Loading Initramfs;" \
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"if load mmc ${bootdev}:1 ${ramdisk_addr_r} ${ramdisk_file};" \
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"then echo Booting Kernel;" \
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"run bootrdkernel;" \
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"else echo Booting Kernel;" \
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"run bootkernel; fi;"
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#endif /* __CONFIG_H */

‎include/configs/transformer-t20.h‎

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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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*
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* (C) Copyright 2022
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* Svyatoslav Ryhel <clamor95@gmail.com>
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <linux/sizes.h>
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#include "tegra20-common.h"
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#include "transformer-common.h"
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#define BOARD_EXTRA_ENV_SETTINGS \
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TRANSFORMER_T20_EMMC_LAYOUT \
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TRANSFORMER_DEFAULT_FILESET \
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TRANSFORMER_BOOTZ \
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TRANSFORMER_BUTTON_CHECK \
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TRANSFORMER_BOOTMENU
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#undef CONFIG_BOOTCOMMAND
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#define CONFIG_BOOTCOMMAND \
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"setenv gpio_vol_down 132;" \
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"if run check_button;" \
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"then bootmenu;" \
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"else echo Loading from uSD...;" \
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"setenv bootdev 1;" \
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"setenv rootpart 2;" \
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TRANSFORMER_LOAD_KERNEL \
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"else echo Loading from uSD failed!;" \
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"echo Loading from eMMC...;" \
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"setenv bootdev 0;" \
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"setenv rootpart 7;" \
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TRANSFORMER_LOAD_KERNEL \
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"fi;" \
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"fi;" \
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"fi;"
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/* Board-specific serial config */
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#define CONFIG_TEGRA_ENABLE_UARTD
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#define CONFIG_SYS_NS16550_COM1 NV_PA_APB_UARTD_BASE
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/* Used for downstream */
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#define CONFIG_MACH_TYPE MACH_TYPE_VENTANA
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#include "tegra-common-post.h"
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#endif /* __CONFIG_H */

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