xilinx: board: Add support to pick bootscr flash offset/size from DT
Location of bootscript in flash can be specified via /options/u-boot DT
node by using bootscr-flash-offset and bootscr-flash-size properties.
Values should be saved to script_offset_f and script_size_f variables.
Variables are described in doc/develop/bootstd.rst as:
script_offset_f
SPI flash offset from which to load the U-Boot script, e.g. 0xffe000
script_size_f
Size of the script to load, e.g. 0x2000
Both of them are used by sf_get_bootflow() in drivers/mtd/spi/sf_bootdev.c
to identify bootscript location inside flash.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/60a84405f3fefabb8b48a4e1ce84431483a729f3.1693465465.git.michal.simek@amd.com
diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c
index 720dcd0..9309b07 100644
--- a/board/xilinx/common/board.c
+++ b/board/xilinx/common/board.c
@@ -411,6 +411,7 @@
int i, id, macid = 0;
struct xilinx_board_description *desc;
phys_size_t bootm_size = gd->ram_top - gd->ram_base;
+ u64 bootscr_flash_offset, bootscr_flash_size;
if (!IS_ENABLED(CONFIG_MICROBLAZE)) {
ulong scriptaddr;
@@ -435,11 +436,19 @@
}
}
+ if (!ofnode_read_bootscript_flash(&bootscr_flash_offset,
+ &bootscr_flash_size)) {
+ ret |= env_set_hex("script_offset_f", bootscr_flash_offset);
+ ret |= env_set_hex("script_size_f", bootscr_flash_size);
+ } else {
+ debug("!!! Please define bootscr-flash-offset via DT !!!\n");
+ ret |= env_set_hex("script_offset_f",
+ CONFIG_BOOT_SCRIPT_OFFSET);
+ }
+
if (IS_ENABLED(CONFIG_ARCH_ZYNQ) || IS_ENABLED(CONFIG_MICROBLAZE))
bootm_size = min(bootm_size, (phys_size_t)(SZ_512M + SZ_256M));
- ret |= env_set_hex("script_offset_f", CONFIG_BOOT_SCRIPT_OFFSET);
-
ret |= env_set_addr("bootm_low", (void *)gd->ram_base);
ret |= env_set_addr("bootm_size", (void *)bootm_size);