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arm: j721e: Add support for selecting DT based on board name

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Enable support for selecting DTB from FIT within SPL based on the
board name read from EEPROM. This will help to use single defconfig
for both EVM and SK.

Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
This commit is contained in:
Sinthu Raja 2022-02-09 15:06:53 +05:30 • committed by Tom Rini
parent d8004919aa
commit 1e82a80d17
1 changed files with 59 additions and 0 deletions
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59
arch/arm/mach-k3/j721e_init.c
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@ -19,6 +19,8 @@
#include <dm.h>
#include <dm/uclass-internal.h>
#include <dm/pinctrl.h>
#include <dm/root.h>
#include <fdtdec.h>
#include <mmc.h>
#include <remoteproc.h>
@ -135,6 +137,59 @@ static void store_boot_info_from_rom(void)
sizeof(struct rom_extended_boot_data));
}
#ifdef CONFIG_SPL_OF_LIST
void do_dt_magic(void)
{
int ret, rescan, mmc_dev = -1;
static struct mmc *mmc;
if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT))
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 && !is_rom_loaded_sysfw(&bootdata)) {
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
void board_init_f(ulong dummy)
{
#if defined(CONFIG_K3_J721E_DDRSS) || defined(CONFIG_K3_LOAD_SYSFW)
@ -180,6 +235,10 @@ void board_init_f(ulong dummy)
k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
k3_mmc_stop_clock, k3_mmc_restart_clock);
#ifdef CONFIG_SPL_OF_LIST
do_dt_magic();
#endif
/*
* Force probe of clk_k3 driver here to ensure basic default clock
* configuration is always done.