[PATCH] xilinx: Setup bootm variables
On system with PL DDR which is placed before PS DDR in DT env_get_bootm_size() and env_get_bootm_low() without specifying bootm_low and bootm_size variables are taking by default gd->bd->bi_dram[0].start and gd->bd->bi_dram[0].size. As you see 0 means bank 0 which doesn't need to be PS ddr and even can be memory above 39bit VA which is what U-Boot supports now. That's why setup bootm variables based on ram_base/ram_size setting to make sure that boot images are placed to the same location as U-Boot is placed. This location should be by default location where OS can boot from.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
board/xilinx/common/board.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 0469e2e7ac9b..3bca3a25a97b 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -86,5 +86,8 @@ int board_late_init_xilinx(void) initrd_hi = round_down(initrd_hi, SZ_16M); env_set_addr("initrd_high", (void *)initrd_hi);
+ env_set_addr("bootm_low", (void *)gd->ram_base); + env_set_addr("bootm_size", (void *)gd->ram_size); + return 0; }
pá 10. 7. 2020 v 13:20 odesílatel Michal Simek michal.simek@xilinx.com napsal:
On system with PL DDR which is placed before PS DDR in DT env_get_bootm_size() and env_get_bootm_low() without specifying bootm_low and bootm_size variables are taking by default gd->bd->bi_dram[0].start and gd->bd->bi_dram[0].size. As you see 0 means bank 0 which doesn't need to be PS ddr and even can be memory above 39bit VA which is what U-Boot supports now. That's why setup bootm variables based on ram_base/ram_size setting to make sure that boot images are placed to the same location as U-Boot is placed. This location should be by default location where OS can boot from.
Signed-off-by: Michal Simek michal.simek@xilinx.com
board/xilinx/common/board.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 0469e2e7ac9b..3bca3a25a97b 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -86,5 +86,8 @@ int board_late_init_xilinx(void) initrd_hi = round_down(initrd_hi, SZ_16M); env_set_addr("initrd_high", (void *)initrd_hi);
env_set_addr("bootm_low", (void *)gd->ram_base);env_set_addr("bootm_size", (void *)gd->ram_size);return 0;}
2.27.0
Applied. M
participants (2)
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Michal Simek -
Michal Simek