omap3: cm-t3517: add support for usb host
add support for hsusb host ports 1, 2 and on-module usb hub. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
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46893a56aa
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@ -25,6 +25,7 @@
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/leds.h>
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#include <linux/rtc-v3020.h>
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@ -36,6 +37,7 @@
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#include <plat/board.h>
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#include <plat/common.h>
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#include <plat/control.h>
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#include <plat/usb.h>
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#include "mux.h"
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@ -100,6 +102,47 @@ static void __init cm_t3517_init_rtc(void)
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static inline void cm_t3517_init_rtc(void) {}
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#endif
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#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
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#define HSUSB1_RESET_GPIO (146)
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#define HSUSB2_RESET_GPIO (147)
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#define USB_HUB_RESET_GPIO (152)
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static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = {
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.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
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.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
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.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
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.phy_reset = true,
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.reset_gpio_port[0] = HSUSB1_RESET_GPIO,
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.reset_gpio_port[1] = HSUSB2_RESET_GPIO,
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.reset_gpio_port[2] = -EINVAL,
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};
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static int cm_t3517_init_usbh(void)
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{
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int err;
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err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
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if (err) {
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pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
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} else {
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gpio_direction_output(USB_HUB_RESET_GPIO, 0);
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udelay(10);
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gpio_set_value(USB_HUB_RESET_GPIO, 1);
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msleep(1);
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}
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usb_ehci_init(&cm_t3517_ehci_pdata);
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return 0;
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}
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#else
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static inline int cm_t3517_init_usbh(void)
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{
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return 0;
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}
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#endif
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static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
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};
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@ -121,6 +164,12 @@ static struct omap_board_mux board_mux[] __initdata = {
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OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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/* HSUSB1 RESET */
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OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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/* HSUSB2 RESET */
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OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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/* CM-T3517 USB HUB nRESET */
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OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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{ .reg_offset = OMAP_MUX_TERMINATOR },
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};
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@ -131,6 +180,7 @@ static void __init cm_t3517_init(void)
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omap_serial_init();
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cm_t3517_init_leds();
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cm_t3517_init_rtc();
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cm_t3517_init_usbh();
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}
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MACHINE_START(CM_T3517, "Compulab CM-T3517")
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