čt 17. 3. 2022 v 15:25 odesílatel Michal Simek michal.simek@xilinx.com napsal:
Versal can also have reserved space in DT which u-boot has to avoid to placing self to that location. The same change was done in ZynqMP by commit ce39ee28ec31 ("zynqmp: Do not place u-boot to reserved memory location") and also for microblaze by commit d7b5cc89d329 ("microblaze: Do not place u-boot to reserved memory location").
The patch was tested by adding reserved-memory node to DT and check via bdinfo back.
Signed-off-by: Michal Simek michal.simek@xilinx.com
board/xilinx/versal/board.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/board/xilinx/versal/board.c b/board/xilinx/versal/board.c index 299e128f7b9d..9940f2aeb337 100644 --- a/board/xilinx/versal/board.c +++ b/board/xilinx/versal/board.c @@ -9,6 +9,7 @@ #include <env.h> #include <fdtdec.h> #include <init.h> +#include <image.h> #include <env_internal.h> #include <log.h> #include <malloc.h> @@ -249,6 +250,25 @@ int dram_init(void) return 0; }
+ulong board_get_usable_ram_top(ulong total_size) +{
phys_size_t size;phys_addr_t reg;struct lmb lmb;/* found enough not-reserved memory to relocated U-Boot */lmb_init(&lmb);lmb_add(&lmb, gd->ram_base, gd->ram_size);boot_fdt_add_mem_rsv_regions(&lmb, (void *)gd->fdt_blob);size = ALIGN(CONFIG_SYS_MALLOC_LEN + total_size, MMU_SECTION_SIZE);reg = lmb_alloc(&lmb, size, MMU_SECTION_SIZE);if (!reg)reg = gd->ram_top - size;return reg + size;+}
void reset_cpu(void) { } -- 2.35.1
Applied. M