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board: ti: j721s2: Add board_init and support for selecting DT based on EEPROM 

Add the board_init_f API for SPL and run the platform-required SoC
initialization.

Add the functionality for board name-based DTB selection from FIT
within SPL. This will make it easier to utilise one defconfig for
both the EVM and the SK.

Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Sinthu Raja 2023-01-10 21:17:54 +05:30 committed by Tom Rini
parent fca27ee8b9
commit 554f8e84b6
1 changed files with 64 additions and 0 deletions
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64
board/ti/j721s2/evm.c
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@ -23,6 +23,7 @@
#include <asm/arch/sys_proto.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#include <dm/root.h>
#include "../common/board_detect.h"
@ -207,3 +208,66 @@ int board_late_init(void)
void spl_board_init(void)
{
}
/* Support for the various EVM / SK families */
#if defined(CONFIG_SPL_OF_LIST) && defined(CONFIG_TI_I2C_BOARD_DETECT)
void do_dt_magic(void)
{
int ret, rescan, mmc_dev = -1;
static struct mmc *mmc;
do_board_detect();
/*
* Board detection has been done.
* Let us see if another dtb wouldn't be a better match
* for our board
*/
if (IS_ENABLED(CONFIG_CPU_V7R)) {
ret = fdtdec_resetup(&rescan);
if (!ret && rescan) {
dm_uninit();
dm_init_and_scan(true);
}
}
/*
* Because of multi DTB configuration, the MMC device has
* to be re-initialized after reconfiguring FDT inorder to
* boot from MMC. Do this when boot mode is MMC and ROM has
* not loaded SYSFW.
*/
switch (spl_boot_device()) {
case BOOT_DEVICE_MMC1:
mmc_dev = 0;
break;
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_MMC2_2:
mmc_dev = 1;
break;
}
if (mmc_dev > 0 && !check_rom_loaded_sysfw()) {
ret = mmc_init_device(mmc_dev);
if (!ret) {
mmc = find_mmc_device(mmc_dev);
if (mmc) {
ret = mmc_init(mmc);
if (ret)
printf("mmc init failed with error: %d\n", ret);
}
}
}
}
#endif
#ifdef CONFIG_SPL_BUILD
void board_init_f(ulong dummy)
{
k3_spl_init();
#if defined(CONFIG_SPL_OF_LIST) && defined(CONFIG_TI_I2C_BOARD_DETECT)
do_dt_magic();
#endif
k3_mem_init();
}
#endif