mx31moboard: support for usbh1 and usbh2
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx3/mx31moboard-devboard.c b/arch/arm/mach-mx3/mx31moboard-devboard.c
index 5592cdb..8fc624f 100644
--- a/arch/arm/mach-mx3/mx31moboard-devboard.c
+++ b/arch/arm/mach-mx3/mx31moboard-devboard.c
@@ -22,11 +22,15 @@
#include <linux/platform_device.h>
#include <linux/types.h>
+#include <linux/usb/otg.h>
+
#include <mach/common.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/hardware.h>
#include <mach/mmc.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
#include "devices.h"
@@ -39,6 +43,12 @@
MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
+ /* USB H1 */
+ MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
+ MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
+ 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,
};
static struct imxuart_platform_data uart_pdata = {
@@ -98,6 +108,80 @@
.exit = devboard_sdhc2_exit,
};
+#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
+ PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
+
+static int devboard_usbh1_hw_init(struct platform_device *pdev)
+{
+ mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
+
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
+
+ return 0;
+}
+
+#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
+#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
+
+static int devboard_isp1105_init(struct otg_transceiver *otg)
+{
+ int ret = gpio_request(USBH1_MODE, "usbh1-mode");
+ if (ret)
+ return ret;
+ /* single ended */
+ gpio_direction_output(USBH1_MODE, 0);
+
+ ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
+ if (ret) {
+ gpio_free(USBH1_MODE);
+ return ret;
+ }
+ gpio_direction_output(USBH1_VBUSEN_B, 1);
+
+ return 0;
+}
+
+
+static int devboard_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
+{
+ if (on)
+ gpio_set_value(USBH1_VBUSEN_B, 0);
+ else
+ gpio_set_value(USBH1_VBUSEN_B, 1);
+
+ return 0;
+}
+
+static struct mxc_usbh_platform_data usbh1_pdata = {
+ .init = devboard_usbh1_hw_init,
+ .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
+ .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI,
+};
+
+static int __init devboard_usbh1_init(void)
+{
+ struct otg_transceiver *otg;
+
+ otg = kzalloc(sizeof(*otg), GFP_KERNEL);
+ if (!otg)
+ return -ENOMEM;
+
+ otg->label = "ISP1105";
+ otg->init = devboard_isp1105_init;
+ otg->set_vbus = devboard_isp1105_set_vbus;
+
+ usbh1_pdata.otg = otg;
+
+ return mxc_register_device(&mx31_usbh1, &usbh1_pdata);
+}
+
/*
* system init for baseboard usage. Will be called by mx31moboard init.
*/
@@ -111,4 +195,6 @@
mxc_register_device(&mxc_uart_device1, &uart_pdata);
mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
+
+ devboard_usbh1_init();
}