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ARM: pxa/cm-x300: enable USB host port2

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Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Igor Grinberg 2010-07-27 15:07:00 +03:00 committed by Eric Miao
parent 6dc3ae845c
commit 1b43d8eda7
1 changed files with 77 additions and 0 deletions
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77
arch/arm/mach-pxa/cm-x300.c
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@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/dm9000.h>
@ -50,6 +51,7 @@
#include <plat/i2c.h>
#include <plat/pxa3xx_nand.h>
#include <mach/audio.h>
#include <mach/pxa3xx-u2d.h>
#include <asm/mach/map.h>
@ -68,6 +70,8 @@
#define GPIO97_RTC_RD (97)
#define GPIO98_RTC_IO (98)
#define GPIO_ULPI_PHY_RST (127)
static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
/* LCD */
GPIO54_LCD_LDD_0,
@ -472,6 +476,78 @@ static void __init cm_x300_init_mmc(void)
static inline void cm_x300_init_mmc(void) {}
#endif
#if defined(CONFIG_PXA310_ULPI)
static struct clk *pout_clk;
static int cm_x300_ulpi_phy_reset(void)
{
int err;
/* reset the PHY */
err = gpio_request(GPIO_ULPI_PHY_RST, "ulpi reset");
if (err) {
pr_err("%s: failed to request ULPI reset GPIO: %d\n",
__func__, err);
return err;
}
gpio_direction_output(GPIO_ULPI_PHY_RST, 0);
msleep(10);
gpio_set_value(GPIO_ULPI_PHY_RST, 1);
msleep(10);
gpio_free(GPIO_ULPI_PHY_RST);
return 0;
}
static inline int cm_x300_u2d_init(struct device *dev)
{
int err = 0;
if (cpu_is_pxa310()) {
/* CLK_POUT is connected to the ULPI PHY */
pout_clk = clk_get(NULL, "CLK_POUT");
if (IS_ERR(pout_clk)) {
err = PTR_ERR(pout_clk);
pr_err("%s: failed to get CLK_POUT: %d\n",
__func__, err);
return err;
}
clk_enable(pout_clk);
err = cm_x300_ulpi_phy_reset();
if (err) {
clk_disable(pout_clk);
clk_put(pout_clk);
}
}
return err;
}
static void cm_x300_u2d_exit(struct device *dev)
{
if (cpu_is_pxa310()) {
clk_disable(pout_clk);
clk_put(pout_clk);
}
}
static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
.ulpi_mode = ULPI_SER_6PIN,
.init = cm_x300_u2d_init,
.exit = cm_x300_u2d_exit,
};
static void cm_x300_init_u2d(void)
{
pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
}
#else
static inline void cm_x300_init_u2d(void) {}
#endif
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static int cm_x300_ohci_init(struct device *dev)
{
@ -754,6 +830,7 @@ static void __init cm_x300_init(void)
cm_x300_init_da9030();
cm_x300_init_dm9000();
cm_x300_init_lcd();
cm_x300_init_u2d();
cm_x300_init_ohci();
cm_x300_init_mmc();
cm_x300_init_nand();