mx31moboard: support for the smartbot baseboard

This baseboard is used on the handbot and eybot robots.

The sel gpios are used as enables and rst signals on smartbot, thus the
sel init is moved from mx31moboard file to board files.

Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 32 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/mx31moboard-devboard.c b/arch/arm/mach-mx3/mx31moboard-devboard.c
index 438428eaf769..9fbad2eb3a49 100644
--- a/arch/arm/mach-mx3/mx31moboard-devboard.c
+++ b/arch/arm/mach-mx3/mx31moboard-devboard.c
@@ -49,6 +49,9 @@ static unsigned int devboard_pins[] = {
         MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
         MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
         MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
+        /* SEL */
+        MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
+        MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
 };
 
 static struct imxuart_platform_data uart_pdata = {
@@ -108,6 +111,33 @@ static struct imxmmc_platform_data sdhc2_pdata = {
         .exit   = devboard_sdhc2_exit,
 };
 
+#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
+#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
+#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
+#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
+
+static void devboard_init_sel_gpios(void)
+{
+        if (!gpio_request(SEL0, "sel0")) {
+                gpio_direction_input(SEL0);
+                gpio_export(SEL0, true);
+        }
+
+        if (!gpio_request(SEL1, "sel1")) {
+                gpio_direction_input(SEL1);
+                gpio_export(SEL1, true);
+        }
+
+        if (!gpio_request(SEL2, "sel2")) {
+                gpio_direction_input(SEL2);
+                gpio_export(SEL2, true);
+        }
+
+        if (!gpio_request(SEL3, "sel3")) {
+                gpio_direction_input(SEL3);
+                gpio_export(SEL3, true);
+        }
+}
 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 
@@ -196,5 +226,7 @@ void __init mx31moboard_devboard_init(void)
 
         mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
 
+        devboard_init_sel_gpios();
+
         devboard_usbh1_init();
 }