[PATCH 1/3] configs: stm32mp1: stm32mp1: Increase SPL malloc() size

Alexandru Gagniuc
2021-03-22T13:19:59Z

Since commit 03f1f78a9b44 ("spl: fit: Prefer a malloc()'d buffer for
loading images"), FIT images must be malloc()'d before being loaded.
The old size of 1 MiB is suitable for FIT images with u-boot and an
FDT, but something containing a linux kernel is almost sure to fail.

It's safe to extend malloc all the way to 0xc2000000, but no further.
Linux likes to be loaded at 0xc2000000, so we use that as our cutoff
point. This gives us 29 MiB of malloc() space, which suited for more
complex FIT images including several DTBs, kernel, and OP-TEE images.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
---
include/configs/stm32mp1.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h
index db2117a3d7..7fdb3ffce4 100644
--- a/include/configs/stm32mp1.h
+++ b/include/configs/stm32mp1.h
@@ -53,7 +53,7 @@
#define CONFIG_SPL_BSS_START_ADDR 0xC0200000
#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000
#define CONFIG_SYS_SPL_MALLOC_START 0xC0300000
-#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x01D00000

/* limit SYSRAM usage to first 128 KB */
#define CONFIG_SPL_MAX_SIZE 0x00020000
--
2.26.2