ARMV7: OMAP3: Add support for Beagle xM

This patch adds support for the Beagle xM.  It uses the board ID
GPIO bits to recognize this revision and perform appropriate setup.

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

board/ti/beagle/beagle.c

@@ -58,12 +58,13 @@ int board_init(void)
 /*
  * Routine: get_board_revision
  * Description: Detect if we are running on a Beagle revision Ax/Bx,
- *		C1/2/3, or C4. This can be done by reading
+ *		C1/2/3, C4 or xM. This can be done by reading
  *		the level of GPIO173, GPIO172 and GPIO171. This should
  *		result in
  *		GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
  *		GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
  *		GPIO173, GPIO172, GPIO171: 1 0 1 => C4
+ *		GPIO173, GPIO172, GPIO171: 0 0 0 => xM
  */
 int get_board_revision(void)
 {
@@ -115,7 +116,7 @@ int misc_init_r(void)
 		break;
 	case REVISION_C4:
 		printf("Beagle Rev C4\n");
-		setenv("beaglerev", "Cx");
+		setenv("beaglerev", "C4");
 		setenv("mpurate", "720");
 		MUX_BEAGLE_C();
 		/* Set VAUX2 to 1.8V for EHCI PHY */
@@ -124,6 +125,17 @@ int misc_init_r(void)
 					TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 					TWL4030_PM_RECEIVER_DEV_GRP_P1);
 		break;
+	case REVISION_XM:
+		printf("Beagle xM Rev A\n");
+		setenv("beaglerev", "xMA");
+		setenv("mpurate", "1000");
+		MUX_BEAGLE_XM();
+		/* Set VAUX2 to 1.8V for EHCI PHY */
+		twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
+					TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
+					TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
+					TWL4030_PM_RECEIVER_DEV_GRP_P1);
+		break;
 	default:
 		printf("Beagle unknown 0x%02x\n", get_board_revision());
 	}

board/ti/beagle/beagle.h

@@ -37,6 +37,7 @@ const omap3_sysinfo sysinfo = {
 #define REVISION_AXBX	0x7
 #define REVISION_CX	0x6
 #define REVISION_C4	0x5
+#define REVISION_XM	0x0
 
 /*
  * IEN  - Input Enable
@@ -377,11 +378,37 @@ const omap3_sysinfo sysinfo = {
 	MUX_VAL(CP(SDRC_CKE1),		(IDIS | PTU | EN  | M0)) /*sdrc_cke1*/
 
 #define MUX_BEAGLE_C() \
-	MUX_VAL(CP(MCBSP3_DX),		(IEN | PTD | DIS | M4)) /*GPIO_140*/\
-	MUX_VAL(CP(MCBSP3_DR),		(IEN | PTD | DIS | M4)) /*GPIO_142*/\
-	MUX_VAL(CP(MCBSP3_CLKX),	(IEN | PTD | DIS | M4)) /*GPIO_141*/\
+	MUX_VAL(CP(MCBSP3_DX),		(IEN  | PTD | DIS | M4)) /*GPIO_140*/\
+	MUX_VAL(CP(MCBSP3_DR),		(IEN  | PTD | DIS | M4)) /*GPIO_142*/\
+	MUX_VAL(CP(MCBSP3_CLKX),	(IEN  | PTD | DIS | M4)) /*GPIO_141*/\
 	MUX_VAL(CP(UART2_CTS),		(IEN  | PTU | EN  | M0)) /*UART2_CTS*/\
 	MUX_VAL(CP(UART2_RTS),		(IDIS | PTD | DIS | M0)) /*UART2_RTS*/\
 	MUX_VAL(CP(UART2_TX),		(IDIS | PTD | DIS | M0)) /*UART2_TX*/
 
+#define MUX_BEAGLE_XM() \
+	MUX_VAL(CP(MCBSP3_DX),		(IEN  | PTD | DIS | M4)) /*GPIO_140*/\
+	MUX_VAL(CP(MCBSP3_DR),		(IEN  | PTD | DIS | M4)) /*GPIO_142*/\
+	MUX_VAL(CP(MCBSP3_CLKX),	(IEN  | PTD | DIS | M4)) /*GPIO_141*/\
+	MUX_VAL(CP(UART2_CTS),		(IEN  | PTU | EN  | M0)) /*UART2_CTS*/\
+	MUX_VAL(CP(UART2_RTS),		(IDIS | PTD | DIS | M0)) /*UART2_RTS*/\
+	MUX_VAL(CP(UART2_TX),		(IDIS | PTD | DIS | M0)) /*UART2_TX*/\
+	MUX_VAL(CP(DSS_DATA0),		(IDIS | PTD | DIS | M7)) /*safe_mode*/\
+	MUX_VAL(CP(DSS_DATA1),		(IDIS | PTD | DIS | M7)) /*safe_mode*/\
+	MUX_VAL(CP(DSS_DATA2),		(IDIS | PTD | DIS | M7)) /*safe_mode*/\
+	MUX_VAL(CP(DSS_DATA3),		(IDIS | PTD | DIS | M7)) /*safe_mode*/\
+	MUX_VAL(CP(DSS_DATA4),		(IDIS | PTD | DIS | M7)) /*safe_mode*/\
+	MUX_VAL(CP(DSS_DATA5),		(IDIS | PTD | DIS | M7)) /*safe_mode*/\
+	MUX_VAL(CP(DSS_DATA18),		(IDIS | PTD | DIS | M3)) /*DSS_DATA0*/\
+	MUX_VAL(CP(DSS_DATA19),		(IDIS | PTD | DIS | M3)) /*DSS_DATA1*/\
+	MUX_VAL(CP(DSS_DATA20),		(IDIS | PTD | DIS | M3)) /*DSS_DATA2*/\
+	MUX_VAL(CP(DSS_DATA21),		(IDIS | PTD | DIS | M3)) /*DSS_DATA3*/\
+	MUX_VAL(CP(DSS_DATA22),		(IDIS | PTD | DIS | M3)) /*DSS_DATA4*/\
+	MUX_VAL(CP(DSS_DATA23),		(IDIS | PTD | DIS | M3)) /*DSS_DATA5*/\
+	MUX_VAL(CP(SYS_BOOT0),		(IDIS | PTD | DIS | M3)) /*DSS_DATA18*/\
+	MUX_VAL(CP(SYS_BOOT1),		(IDIS | PTD | DIS | M3)) /*DSS_DATA19*/\
+	MUX_VAL(CP(SYS_BOOT3),		(IDIS | PTD | DIS | M3)) /*DSS_DATA20*/\
+	MUX_VAL(CP(SYS_BOOT4),		(IDIS | PTD | DIS | M3)) /*DSS_DATA21*/\
+	MUX_VAL(CP(SYS_BOOT5),		(IDIS | PTD | DIS | M3)) /*DSS_DATA22*/\
+	MUX_VAL(CP(SYS_BOOT6),		(IDIS | PTD | DIS | M3)) /*DSS_DATA23*/
+
 #endif