diff options
| author | Michal Simek | 2022-03-17 15:25:31 +0100 |
|---|---|---|
| committer | Michal Simek | 2022-03-29 09:16:30 +0200 |
| commit | f66d0b53462cdd209ec045c8dcf623046fa4f3cc (patch) | |
| tree | 52c38b7f4418c3c2744632ff702111ff86916714 /board/xilinx/versal | |
| parent | f307c688ea951978ebcceb5536aa31c0249b33df (diff) | |
arm64: versal: Do not place u-boot to reserved memory location
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>
Link: https://lore.kernel.org/r/15426fa6d64835dd23c5c8c12bbfc97306fb6098.1647527129.git.michal.simek@xilinx.com
Diffstat (limited to 'board/xilinx/versal')
| -rw-r--r-- | board/xilinx/versal/board.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/board/xilinx/versal/board.c b/board/xilinx/versal/board.c index 299e128f7b9..9940f2aeb33 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) { } |