ppc4xx: Add support for AMCC 405EP Taihu board

Signed-off-by: John Otken <john@softadvances.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c
index d520cd3ff4c..3a0ca17d9fe 100644
--- a/cpu/ppc4xx/sdram.c
+++ b/cpu/ppc4xx/sdram.c
@@ -209,8 +209,17 @@ void sdram_init(void)
 
 		if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) {
 			/*
-			 * OK, size detected -> all done
+			 * OK, size detected.  Enable second bank if
+			 * defined (assumes same type as bank 0)
 			 */
+#ifdef CONFIG_SDRAM_BANK1
+			u32 b1cr = mb0cf[i].size | mb0cf[i].reg;
+
+			mtsdram0(mem_mcopt1, 0x00000000);
+			mtsdram0(mem_mb1cf, b1cr); /* SDRAM0_B1CR */
+			mtsdram0(mem_mcopt1, 0x80800000);
+			udelay(10000);
+#endif
 			return;
 		}
 	}