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-rw-r--r--board/overo/overo.c47
-rw-r--r--board/overo/overo.h35
2 files changed, 80 insertions, 2 deletions
diff --git a/board/overo/overo.c b/board/overo/overo.c
index 4a60917..1b67f1f 100644
--- a/board/overo/overo.c
+++ b/board/overo/overo.c
@@ -103,6 +103,39 @@ int get_board_revision(void)
}
/*
+ * Routine: get_sdio2_config
+ * Description: Return information about the wifi module connection
+ * Returns 0 if the module connects though a level translator
+ * Returns 1 if the module connects directly
+ */
+int get_sdio2_config(void)
+{
+ int sdio_direct;
+
+ if (!omap_request_gpio(130) && !omap_request_gpio(139)) {
+
+ omap_set_gpio_direction(130, 0);
+ omap_set_gpio_direction(139, 1);
+
+ sdio_direct = 1;
+ omap_set_gpio_dataout(130, 0);
+ if (omap_get_gpio_datain(139) == 0) {
+ omap_set_gpio_dataout(130, 1);
+ if (omap_get_gpio_datain(139) == 1)
+ sdio_direct = 0;
+ }
+
+ omap_free_gpio(130);
+ omap_free_gpio(139);
+ } else {
+ printf("Error: unable to acquire sdio2 clk GPIOs\n");
+ sdio_direct = -1;
+ }
+
+ return sdio_direct;
+}
+
+/*
* Routine: misc_init_r
* Description: Configure board specific parts
*/
@@ -116,6 +149,20 @@ int misc_init_r(void)
#endif
printf("Board revision: %d\n", get_board_revision());
+
+ switch (get_sdio2_config()) {
+ case 0:
+ printf("Tranceiver detected on mmc2\n");
+ MUX_OVERO_SDIO2_TRANSCEIVER();
+ break;
+ case 1:
+ printf("Direct connection on mmc2\n");
+ MUX_OVERO_SDIO2_DIRECT();
+ break;
+ default:
+ printf("Unable to detect mmc2 connection type\n");
+ }
+
dieid_num_r();
return 0;
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 @@ const omap3_sysinfo sysinfo = {
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 @@ const omap3_sysinfo sysinfo = {
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 @@ const omap3_sysinfo sysinfo = {
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