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-rw-r--r--board/amcc/ebony/flash.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/board/amcc/ebony/flash.c b/board/amcc/ebony/flash.c
index 8fe3ba1b8..79d2c4c30 100644
--- a/board/amcc/ebony/flash.c
+++ b/board/amcc/ebony/flash.c
@@ -34,6 +34,7 @@
#include <common.h>
#include <ppc4xx.h>
#include <asm/processor.h>
+#include <asm/io.h>
#undef DEBUG
#ifdef DEBUG
@@ -71,6 +72,36 @@ static unsigned long flash_addr_table[8][CONFIG_SYS_MAX_FLASH_BANKS] = {
*/
static ulong flash_get_size(vu_long * addr, flash_info_t * info);
+/*
+ * Override the weak default mapping function with a board specific one
+ */
+u32 flash_get_bank_size(int cs, int idx)
+{
+ u8 reg = in_8((void *)CONFIG_SYS_FPGA_BASE);
+
+ if ((reg & BOOT_SMALL_FLASH) && !(reg & FLASH_ONBD_N)) {
+ /*
+ * cs0: small flash (512KiB)
+ * cs2: 2 * big flash (2 * 2MiB)
+ */
+ if (cs == 0)
+ return flash_info[2].size;
+ if (cs == 2)
+ return flash_info[0].size + flash_info[1].size;
+ } else {
+ /*
+ * cs0: 2 * big flash (2 * 2MiB)
+ * cs2: small flash (512KiB)
+ */
+ if (cs == 0)
+ return flash_info[0].size + flash_info[1].size;
+ if (cs == 2)
+ return flash_info[2].size;
+ }
+
+ return 0;
+}
+
unsigned long flash_init(void)
{
unsigned long total_b = 0;