Kirkwood: dram_init is moved to dram.c
For all Kirkwood boards so far dram_init function is duplicated
dram_init function is moved to dram.c and relevant code from all
board specific files removed
If any board needs specific dram init handling than standard one,
then, a macro CONFIG_SYS_BOARD_DRAM_INIT should be defined in
board config header file and the dram_init function can be put
in board specific source file
For ex. keymile boards
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/dram.c b/arch/arm/cpu/arm926ejs/kirkwood/dram.c
index 8f2a18a..7439c87 100644
--- a/arch/arm/cpu/arm926ejs/kirkwood/dram.c
+++ b/arch/arm/cpu/arm926ejs/kirkwood/dram.c
@@ -23,8 +23,11 @@
*/
#include <config.h>
+#include <common.h>
#include <asm/arch/kirkwood.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#define KW_REG_CPUCS_WIN_BAR(x) (KW_REGISTER(0x1500) + (x * 0x08))
#define KW_REG_CPUCS_WIN_SZ(x) (KW_REGISTER(0x1504) + (x * 0x08))
/*
@@ -56,3 +59,38 @@
result += 0x01000000;
return result;
}
+
+#ifndef CONFIG_SYS_BOARD_DRAM_INIT
+int dram_init(void)
+{
+ int i;
+
+ gd->ram_size = 0;
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ gd->bd->bi_dram[i].start = kw_sdram_bar(i);
+ gd->bd->bi_dram[i].size = kw_sdram_bs(i);
+ /*
+ * It is assumed that all memory banks are consecutive
+ * and without gaps.
+ * If the gap is found, ram_size will be reported for
+ * consecutive memory only
+ */
+ if (gd->bd->bi_dram[i].start != gd->ram_size)
+ break;
+
+ gd->ram_size += gd->bd->bi_dram[i].size;
+
+ }
+ return 0;
+}
+
+/*
+ * If this function is not defined here,
+ * board.c alters dram bank zero configuration defined above.
+ */
+void dram_init_banksize(void)
+{
+ dram_init();
+}
+#endif /* CONFIG_SYS_BOARD_DRAM_INIT */
+