kirkwood: implement kw_sdram_size_adjust
Size of the SDRAM chips might differ between any two (otherwise
identical) instances of the same board.
So add a function kw_sdram_size_adjust() which reads out the current
ram size for a given bank, and adjusts the Kirkwood's SDRAM window size
register accordingly.
Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/dram.c b/arch/arm/cpu/arm926ejs/kirkwood/dram.c
index 5e2f9d8..807894f 100644
--- a/arch/arm/cpu/arm926ejs/kirkwood/dram.c
+++ b/arch/arm/cpu/arm926ejs/kirkwood/dram.c
@@ -97,6 +97,17 @@
return result;
}
+void kw_sdram_size_adjust(enum memory_bank bank)
+{
+ u32 size;
+
+ /* probe currently equipped RAM size */
+ size = get_ram_size((void *)kw_sdram_bar(bank), kw_sdram_bs(bank));
+
+ /* adjust SDRAM window size accordingly */
+ kw_sdram_bs_set(bank, size);
+}
+
#ifndef CONFIG_SYS_BOARD_DRAM_INIT
int dram_init(void)
{