[U-Boot] [PATCH V2 2/4] arm: mx6: cm_fx6: detect 1GB DRAM correctly on solo

Nikita Kiryanov
2014-10-29T15:56:22Z

The 1GB DRAM configuration on mx6 solo uses 2 chip selects, but
the code tests 1GB DRAM configuration as if it is all present on one
chip select, and thus cannot see the full range of available memory.

Refactor the check to detect 1GB DRAM correctly.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Stefano Babic <sbabic@denx.de>
---
board/compulab/cm_fx6/spl.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/board/compulab/cm_fx6/spl.c b/board/compulab/cm_fx6/spl.c
index 3948ba2..6fe937b 100644
--- a/board/compulab/cm_fx6/spl.c
+++ b/board/compulab/cm_fx6/spl.c
@@ -235,10 +235,11 @@ static int cm_fx6_spl_dram_init(void)

spl_mx6s_dram_init(DDR_32BIT_1GB, false);
bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
- if (bank1_size == 0x40000000)
- return 0;
-
+ bank2_size = get_ram_size((long int *)PHYS_SDRAM_2, 0x80000000);
if (bank1_size == 0x20000000) {
+ if (bank2_size == 0x20000000)
+ return 0;
+
spl_mx6s_dram_init(DDR_32BIT_512MB, true);
return 0;
}
--
1.9.1