commit a06e1629f4f53db7d1b9fefec6dfabf6438b2d55
author Steve Sakoman <steve@sakoman.com> Tue Aug 24 10:37:29 2010 -0700
committer Sandeep Paulraj <s-paulraj@ti.com> Wed Sep 08 14:51:45 2010 -0400
tree a9ab34d972c4356ee58d96a7ea98646e3e68b7d2
parent 08cbba2abf2d581d2431c982d21be1cbf055da78

ARMV7: OMAP: Overo: Autodetect presence/absence of transceiver on mmc2

An upcoming version of Overo uses a Wifi/BT module with 1.8V signaling,
eliminating the need for an external transceiver to handle the level
shifting.  This patch detects whether an external transceiver is present
and adjusts the pinmux settings as appropriate.

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

board/overo/overo.h

diff --git a/board/overo/overo.h b/board/overo/overo.h
index 2744ffe..33a92e4 100644
--- a/board/overo/overo.h
+++ b/board/overo/overo.h
@@ -211,7 +211,7 @@
 	MUX_VAL(CP(MMC1_DAT6),		(IEN  | PTU | EN  | M0)) /*MMC1_DAT6*/\
 	MUX_VAL(CP(MMC1_DAT7),		(IEN  | PTU | EN  | M0)) /*MMC1_DAT7*/\
  /*Wireless LAN */\
-	MUX_VAL(CP(MMC2_CLK),		(IEN  | PTU | EN  | M0)) /*MMC2_CLK*/\
+	MUX_VAL(CP(MMC2_CLK),		(IEN  | PTU | EN  | M4)) /*GPIO_130*/\
 	MUX_VAL(CP(MMC2_CMD),		(IEN  | PTU | EN  | M0)) /*MMC2_CMD*/\
 	MUX_VAL(CP(MMC2_DAT0),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT0*/\
 	MUX_VAL(CP(MMC2_DAT1),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT1*/\
@@ -220,7 +220,7 @@
 	MUX_VAL(CP(MMC2_DAT4),		(IEN  | PTU | EN  | M1)) /*MMC2_DIR_DAT0*/\
 	MUX_VAL(CP(MMC2_DAT5),		(IEN  | PTU | EN  | M1)) /*MMC2_DIR_DAT1*/\
 	MUX_VAL(CP(MMC2_DAT6),		(IEN  | PTU | EN  | M1)) /*MMC2_DIR_CMD*/\
-	MUX_VAL(CP(MMC2_DAT7),		(IEN  | PTU | EN  | M1)) /*MMC2_CLKIN*/\
+	MUX_VAL(CP(MMC2_DAT7),		(IEN  | PTU | EN  | M4)) /*GPIO_139*/\
  /*Bluetooth*/\
 	MUX_VAL(CP(MCBSP3_DX),		(IEN  | PTD | DIS | M1)) /*UART2_CTS*/\
 	MUX_VAL(CP(MCBSP3_DR),		(IDIS | PTD | DIS | M1)) /*UART2_RTS*/\
@@ -387,5 +387,36 @@
 	MUX_VAL(CP(SDRC_CKE0),		(IDIS | PTU | EN  | M0)) /*sdrc_cke0*/\
 	MUX_VAL(CP(SDRC_CKE1),		(IDIS | PTU | EN  | M0)) /*sdrc_cke1*/
 
+#define MUX_OVERO_SDIO2_DIRECT() \
+	MUX_VAL(CP(MMC2_CLK),		(IEN  | PTU | EN  | M0)) /*MMC2_CLK*/\
+	MUX_VAL(CP(MMC2_CMD),		(IEN  | PTU | EN  | M0)) /*MMC2_CMD*/\
+	MUX_VAL(CP(MMC2_DAT0),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT0*/\
+	MUX_VAL(CP(MMC2_DAT1),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT1*/\
+	MUX_VAL(CP(MMC2_DAT2),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT2*/\
+	MUX_VAL(CP(MMC2_DAT3),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT3*/\
+	MUX_VAL(CP(MMC2_DAT4),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT4*/\
+	MUX_VAL(CP(MMC2_DAT5),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT5*/\
+	MUX_VAL(CP(MMC2_DAT6),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT6*/\
+	MUX_VAL(CP(MMC2_DAT7),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT7*/\
+	MUX_VAL(CP(MMC1_DAT4),		(IEN  | PTD | EN  | M4)) /*GPIO_126*/\
+	MUX_VAL(CP(MMC1_DAT5),		(IEN  | PTU | EN  | M4)) /*GPIO_127*/\
+	MUX_VAL(CP(MMC1_DAT6),		(IEN  | PTU | EN  | M4)) /*GPIO_128*/\
+	MUX_VAL(CP(MMC1_DAT7),		(IEN  | PTU | EN  | M4)) /*GPIO_129*/
+
+#define MUX_OVERO_SDIO2_TRANSCEIVER() \
+	MUX_VAL(CP(MMC2_CLK),		(IEN  | PTU | EN  | M0)) /*MMC2_CLK*/\
+	MUX_VAL(CP(MMC2_CMD),		(IEN  | PTU | EN  | M0)) /*MMC2_CMD*/\
+	MUX_VAL(CP(MMC2_DAT0),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT0*/\
+	MUX_VAL(CP(MMC2_DAT1),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT1*/\
+	MUX_VAL(CP(MMC2_DAT2),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT2*/\
+	MUX_VAL(CP(MMC2_DAT3),		(IEN  | PTU | EN  | M0)) /*MMC2_DAT3*/\
+	MUX_VAL(CP(MMC2_DAT4),		(IEN  | PTU | EN  | M1)) /*MMC2_DIR_DAT0*/\
+	MUX_VAL(CP(MMC2_DAT5),		(IEN  | PTU | EN  | M1)) /*MMC2_DIR_DAT1*/\
+	MUX_VAL(CP(MMC2_DAT6),		(IEN  | PTU | EN  | M1)) /*MMC2_DIR_CMD*/\
+	MUX_VAL(CP(MMC2_DAT7),		(IEN  | PTU | EN  | M1)) /*MMC2_CLKIN*/\
+	MUX_VAL(CP(MMC1_DAT4),		(IEN  | PTU | EN  | M4)) /*GPIO_126*/\
+	MUX_VAL(CP(MMC1_DAT5),		(IEN  | PTU | EN  | M4)) /*GPIO_127*/\
+	MUX_VAL(CP(MMC1_DAT6),		(IEN  | PTU | EN  | M4)) /*GPIO_128*/\
+	MUX_VAL(CP(MMC1_DAT7),		(IEN  | PTU | EN  | M4)) /*GPIO_129*/
 
 #endif