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The k3-am62a7-sk.dts describes an I2C PMIC TPS659312 which features a number of regulators. One of them, ldo1, is used as power supply for the SD card host controller regulator. When the rootfs is on the SD card (like with this configuration), we need support for these three components (Regulator driver, I2C PMIC glue and PMIC MFD driver) to be built-in in order to avoid boot failures. Tested on an AM62A LP SK. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Bryan Brattlof <bb@ti.com> Signed-off-by: Romain Naour <romain.naour@smile.fr>
Texas Instuments SK-AM62A Test and Development Board
Description
===========
This configuration will build a complete image for the TI SK-AM62A
board: https://www.ti.com/tool/SK-AM62A-LP
How to Build
============
Select the default configuration for the target:
$ make ti_am62ax_sk_defconfig
Optional: modify the configuration:
$ make menuconfig
IMPORTANT: make sure to use the tiboot3 firmware that match with the TI
K3 SoC boot ROM (tiboot3-am62ax-{gp/hs-fs/hs}-evm.bin) used on the board.
Use the BR2_TARGET_TI_K3_R5_LOADER_TIBOOT3_BIN to name which tiboot3.bin
security variant we want to use.
Build:
$ make
To copy the resultimg output image file to an SD card use dd:
$ dd if=output/images/sdcard.img of=/dev/sdX bs=1M
How to Run
==========
Insert the SD card into the SK-AM62A board, and power it up through the
USB Type-C connector. The system should come up. You can use a
micro-USB cable to connect to the connector labeled UART to
communicate with the board.