omap: overo: update support for Micron 1GB POP

Signed-off-by: Ash Charles <ashcharles@gmail.com>

board/overo/overo.c

@@ -153,6 +153,12 @@ void get_board_mem_timings(struct board_sdrc_timings *timings)
 		timings->ctrlb = HYNIX_V_ACTIMB_165;
 		timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 		break;
+	case REVISION_3: /* Micron 512MB/1024MB, 1/2 banks of 512MB */
+		timings->mcfg = MCFG(512 << 20, 15);
+		timings->ctrla = MICRON_V_ACTIMA_200;
+		timings->ctrlb = MICRON_V_ACTIMB_200;
+		timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
+		break;
 	default:
 		timings->mcfg = MICRON_V_MCFG_165(128 << 20);
 		timings->ctrla = MICRON_V_ACTIMA_165;

board/overo/overo.h

@@ -21,6 +21,7 @@ const omap3_sysinfo sysinfo = {
 #define REVISION_0	0x0
 #define REVISION_1	0x1
 #define REVISION_2	0x2
+#define REVISION_3	0x3
 
 /*
  * IEN  - Input Enable