[PATCH] arm: stm32mp: Fix board_get_usable_ram_top() again

[Marek Vasut]

Do not access gd->ram_size and assume this is actual valid RAM size. Since commit
777aaaa706b ("common/memsize.c: Fix get_effective_memsize() to check for overflow")
the RAM size may be less than gd->ram_size , call get_effective_memsize() to get
the limited value instead.

The aforementioned commit makes STM32MP15xx boards with 1 GiB of DRAM
at 0xc0000000 hang on boot, which is a grave defect.

Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: Pali Rohar <pali at kernel.org>
Cc: Patrice Chotard <patrice.chotard at foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
Cc: Tom Rini <trini at konsulko.com>
---
 arch/arm/mach-stm32mp/dram_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-stm32mp/dram_init.c b/arch/arm/mach-stm32mp/dram_init.c
index 9346fa8546d..80ba5c27741 100644
--- a/arch/arm/mach-stm32mp/dram_init.c
+++ b/arch/arm/mach-stm32mp/dram_init.c
@@ -51,7 +51,7 @@ phys_size_t board_get_usable_ram_top(phys_size_t total_size)
 
 	/* found enough not-reserved memory to relocated U-Boot */
 	lmb_init(&lmb);
-	lmb_add(&lmb, gd->ram_base, gd->ram_size);
+	lmb_add(&lmb, gd->ram_base, get_effective_memsize());
 	boot_fdt_add_mem_rsv_regions(&lmb, (void *)gd->fdt_blob);
 	/* add 8M for reserved memory for display, fdt, gd,... */
 	size = ALIGN(SZ_8M + CONFIG_SYS_MALLOC_LEN + total_size, MMU_SECTION_SIZE),
-- 
2.39.0