Commit 1b43d8ed authored by Igor Grinberg's avatar Igor Grinberg Committed by Eric Miao
Browse files

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



Signed-off-by: default avatarIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: default avatarMike Rapoport <mike@compulab.co.il>
Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
parent 6dc3ae84

arch/arm/mach-pxa/cm-x300.c

+77 −0
Original line number Diff line number Diff line
@@ -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();