AM62 SIP has 512MB RAM. But the top of the RAM is reserved for
TF-A and OPTEE. U-Boot relocating there would cause overwriting
of these reserved regions. Fix this by limit U-Boot to first
64MB of RAM for all boards with 512MB.
Signed-off-by: Vignesh Raghavendra <vigne...@ti.com>
Signed-off-by: Nitin Yadav <n-ya...@ti.com>
---
board/ti/am62x/evm.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/board/ti/am62x/evm.c b/board/ti/am62x/evm.c
index ad93908840..ad3e415592 100644
--- a/board/ti/am62x/evm.c
+++ b/board/ti/am62x/evm.c
@@ -18,6 +18,7 @@
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <dm/uclass.h>
+#include <linux/sizes.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -59,6 +60,16 @@ int dram_init_banksize(void)
return fdtdec_setup_memory_banksize();
}
+phys_size_t get_effective_memsize(void)
+{
+ /*
+ * Just below 512MB are TF-A and OPTEE reserve regions, thus
+ * SPL/U-Boot RAM has to start below that. Leave 64MB space for
+ * all reserved memories.
+ */
+ return gd->ram_size == SZ_512M ? SZ_512M - SZ_64M : gd->ram_size;
+}
+
#if defined(CONFIG_SPL_BUILD)
static int video_setup(void)
{
--
2.25.1
