add support for hsusb host ports 1, 2 and on-module usb hub.
Signed-off-by: Igor Grinberg <grinberg@xxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/board-cm-t3517.c | 50 ++++++++++++++++++++++++++++++++++
1 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c
index 2b41c6d..2c7082d 100644
--- a/arch/arm/mach-omap2/board-cm-t3517.c
+++ b/arch/arm/mach-omap2/board-cm-t3517.c
@@ -25,6 +25,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/rtc-v3020.h>
@@ -36,6 +37,7 @@
#include <plat/board.h>
#include <plat/common.h>
#include <plat/control.h>
+#include <plat/usb.h>
#include "mux.h"
@@ -100,6 +102,47 @@ static void __init cm_t3517_init_rtc(void)
static inline void cm_t3517_init_rtc(void) {}
#endif
+#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
+#define HSUSB1_RESET_GPIO (146)
+#define HSUSB2_RESET_GPIO (147)
+#define USB_HUB_RESET_GPIO (152)
+
+static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = {
+ .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
+ .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
+ .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+
+ .phy_reset = true,
+ .reset_gpio_port[0] = HSUSB1_RESET_GPIO,
+ .reset_gpio_port[1] = HSUSB2_RESET_GPIO,
+ .reset_gpio_port[2] = -EINVAL,
+};
+
+static int cm_t3517_init_usbh(void)
+{
+ int err;
+
+ err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
+ if (err) {
+ pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
+ } else {
+ gpio_direction_output(USB_HUB_RESET_GPIO, 0);
+ udelay(10);
+ gpio_set_value(USB_HUB_RESET_GPIO, 1);
+ msleep(1);
+ }
+
+ usb_ehci_init(&cm_t3517_ehci_pdata);
+
+ return 0;
+}
+#else
+static inline int cm_t3517_init_usbh(void)
+{
+ return 0;
+}
+#endif
+
static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
};
@@ -121,6 +164,12 @@ static struct omap_board_mux board_mux[] __initdata = {
OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
+ /* HSUSB1 RESET */
+ OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
+ /* HSUSB2 RESET */
+ OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
+ /* CM-T3517 USB HUB nRESET */
+ OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
@@ -131,6 +180,7 @@ static void __init cm_t3517_init(void)
omap_serial_init();
cm_t3517_init_leds();
cm_t3517_init_rtc();
+ cm_t3517_init_usbh();
}
MACHINE_START(CM_T3517, "Compulab CM-T3517")
--
1.7.1
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