u-boot.git/doc/board, branch v2022.04

doc: board: raspberrypi: Add documentation

2022-03-20T10:03:06Z

Add documentation about the different configuration files for the RaspberryPi board family. Signed-off-by: Matthias Brugger Reviewed-by: Simon Glass Reviewed-by: Heinrich Schuchardt

Nokia RX-51: Update documentation about QEMU

2022-03-20T10:03:06Z

Add section how to run U-Boot in n900 qemu machine. Signed-off-by: Pali Rohár Signed-off-by: Heinrich Schuchardt

doc: boards: amlogic: Add documentation on pre-generated FIP files

2022-03-20T10:03:06Z

It add documentation on licencing & provides links to the amlogic-boot-fip pre-built files collections. Signed-off-by: Neil Armstrong

doc: board: amlogic-p20x: fix FIP generation doc

2022-03-20T10:03:06Z

The doc used GXL instructions, which couldn't work on GXBB SoCs. Signed-off-by: Neil Armstrong

rockchip: rk3399: Add support for chromebook_kevin

2022-03-18T10:12:03Z

Add support for Kevin, an RK3399-based convertible chromebook that is very similar to Bob. This patch is mostly based on existing support for Bob, with only minor changes for Kevin-specific things. Unlike other Gru boards, coreboot sets Kevin's center logic to 925 mV, so adjust it here in the dts as well. The rk3399-gru-kevin devicetree has an unknown event code reference which has to be defined, set it to the Linux counterpart. The new defconfig is copied from Bob with the diffconfig: DEFAULT_DEVICE_TREE "rk3399-gru-bob" -> "rk3399-gru-kevin" DEFAULT_FDT_FILE "rockchip/rk3399-gru-bob.dtb" -> "rockchip/rk3399-gru-kevin.dtb" VIDEO_ROCKCHIP_MAX_XRES 1280 -> 2400 VIDEO_ROCKCHIP_MAX_YRES 800 -> 1600 +TARGET_CHROMEBOOK_KEVIN y With this Kevin can boot from SPI flash to a usable U-Boot prompt on the display with the keyboard working, but cannot boot into Linux for unknown reasons. eMMC starts in a working state but fails to re-init, microSD card works but at a lower-than-expected speed, USB works but causes a hang on de-init. There are known workarounds to solve eMMC and USB issues. Cc: Marty E. Plummer Cc: Simon Glass [Alper: commit message, resync config with Bob, update MAINTAINERS, add to Rockchip doc, add Kconfig help message, set regulator] Co-developed-by: Alper Nebi Yasak Signed-off-by: Alper Nebi Yasak Reviewed-by: Kever Yang Reviewed-by: Simon Glass Tested-by: Simon Glass

k210: use the board vendor name rather than the marketing name

2022-03-15T09:43:11Z

"kendryte" is the marketing name for the K210 RISC-V SoC produced by Canaan Inc. Rather than "kendryte,k210", use the usual "canaan,k210" vendor,SoC compatibility string format in the device tree files and use the SoC name for file names. With these changes, the device tree files are more in sync with the Linux kernel DTS and drivers, making uboot device tree usable by the kernel. Signed-off-by: Damien Le Moal Signed-off-by: Niklas Cassel Reviewed-by: Leo Yu-Chi Liang

doc: path to u-boot-spl.bin on SiFive Unmatched board

2022-03-12T11:27:07Z

u-boot-spl.bin is built in spl/. Signed-off-by: Heinrich Schuchardt Reviewed-by: Bin Meng

board: sl28: remove "Useful I2C tricks" section from docs

2022-02-28T06:29:35Z

They are no longer needed, because we now have proper driver support for the sl28cpld management controller. Signed-off-by: Michael Walle Reviewed-by: Priyanka Jain

board: sl28: disable recovery watchdog

2022-02-28T06:29:35Z

This board has an internal watchdog which supervises the board startup. Although, the initial state of the watchdog is configurable, it is enabled by default. In board_late_init(), which means almost everything worked as expected, disable the watchdog. Signed-off-by: Michael Walle Reviewed-by: Priyanka Jain

watchdog: add sl28cpld watchdog driver

2022-02-28T06:29:35Z

The watchdog timer is part of the sl28cpld management controller. The watchdog timer usually supervises the bootloader boot-up and if it bites the failsafe bootloader will be activated. Apart from that it supports the usual board level reset and one SMARC speciality: driving the WDT_TIMEOUT# signal. Signed-off-by: Michael Walle Reviewed-by: Priyanka Jain