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riscv: spl: andes: Move the DTB in front of kernel

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Originally, u-boot SPL will place the DTB directly after the kernel,
but the size of the kernel does not include the BSS section, This
means that u-boot SPL places the DTB in the kernel BSS section causing
the DTB to be cleared by the kernel BSS initialisation.

Moving the DTB in front of the kernel can avoid this error.

Signed-off-by: Randolph <randolph@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This commit is contained in:
Randolph 2023-10-12 14:35:09 +08:00 committed by Leo Yu-Chi Liang
parent fe192679ef
commit 03a4504659
1 changed files with 25 additions and 0 deletions
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25
board/AndesTech/ae350/ae350.c
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@ -19,6 +19,8 @@
#include <fdtdec.h>
#include <dm.h>
#include <spl.h>
#include <mapmem.h>
#include <hang.h>
DECLARE_GLOBAL_DATA_PTR;
@ -26,6 +28,29 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscellaneous platform dependent initializations
*/
#if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
#define ANDES_SPL_FDT_ADDR (CONFIG_TEXT_BASE - 0x100000)
void spl_perform_fixups(struct spl_image_info *spl_image)
{
/*
* Originally, u-boot-spl will place DTB directly after the kernel,
* but the size of the kernel did not include the BSS section, which
* means u-boot-spl will place the DTB in the kernel BSS section
* causing the DTB to be cleared by kernel BSS initializtion.
* Moving DTB in front of the kernel can avoid the error.
*/
if (ANDES_SPL_FDT_ADDR < 0) {
printf("%s: CONFIG_TEXT_BASE needs to be larger than 0x100000\n",
__func__);
hang();
}
memcpy((void *)ANDES_SPL_FDT_ADDR, spl_image->fdt_addr,
fdt_totalsize(spl_image->fdt_addr));
spl_image->fdt_addr = map_sysmem(ANDES_SPL_FDT_ADDR, 0);
}
#endif
int board_init(void)
{
gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400;