system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-11-05 18:23:50 +00:00
Code Issues Projects Releases Packages Wiki Activity

omap3: cm-t3517: add support for usb host

Browse source 
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>
This commit is contained in:
Igor Grinberg 2010-09-21 16:03:11 +00:00 committed by Tony Lindgren
parent 46893a56aa
commit 525d75b31b
1 changed files with 50 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

50
arch/arm/mach-omap2/board-cm-t3517.c
View file

@ -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")