Commit 77bcefd9 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Rafael J. Wysocki
Browse files

ARM: shmobile: kzm9g: enable USB function 



This patch enable USB function on CN17

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
parent 0fcc6d55

arch/arm/configs/kzm9g_defconfig

+5 −0
Original line number Diff line number Diff line
@@ -100,7 +100,12 @@ CONFIG_SND_SOC_SH4_FSI=y 
CONFIG_USB=y

CONFIG_USB_DEVICEFS=y

CONFIG_USB_R8A66597_HCD=y

CONFIG_USB_RENESAS_USBHS=y

CONFIG_USB_STORAGE=y

CONFIG_USB_GADGET=y

CONFIG_USB_RENESAS_USBHS_UDC=y

CONFIG_USB_ETH=m

CONFIG_USB_MASS_STORAGE=m

CONFIG_MMC=y

# CONFIG_MMC_BLOCK_BOUNCE is not set

CONFIG_MMC_SDHI=y

arch/arm/mach-shmobile/board-kzm9g.c

+150 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
#include <linux/platform_device.h>

#include <linux/smsc911x.h>

#include <linux/usb/r8a66597.h>

#include <linux/usb/renesas_usbhs.h>

#include <linux/videodev2.h>

#include <sound/sh_fsi.h>

#include <sound/simple_card.h>
@@ -122,6 +123,151 @@ static struct platform_device usb_host_device = { 
	.resource	= usb_resources,

};



/* USB Func CN17 */

struct usbhs_private {

	unsigned int phy;

	unsigned int cr2;

	struct renesas_usbhs_platform_info info;

};



#define IRQ15			intcs_evt2irq(0x03e0)

#define USB_PHY_MODE		(1 << 4)

#define USB_PHY_INT_EN		((1 << 3) | (1 << 2))

#define USB_PHY_ON		(1 << 1)

#define USB_PHY_OFF		(1 << 0)

#define USB_PHY_INT_CLR		(USB_PHY_ON | USB_PHY_OFF)



#define usbhs_get_priv(pdev) \

	container_of(renesas_usbhs_get_info(pdev), struct usbhs_private, info)



static int usbhs_get_vbus(struct platform_device *pdev)

{

	struct usbhs_private *priv = usbhs_get_priv(pdev);



	return !((1 << 7) & __raw_readw(priv->cr2));

}



static void usbhs_phy_reset(struct platform_device *pdev)

{

	struct usbhs_private *priv = usbhs_get_priv(pdev);



	/* init phy */

	__raw_writew(0x8a0a, priv->cr2);

}



static int usbhs_get_id(struct platform_device *pdev)

{

	return USBHS_GADGET;

}



static irqreturn_t usbhs_interrupt(int irq, void *data)

{

	struct platform_device *pdev = data;

	struct usbhs_private *priv = usbhs_get_priv(pdev);



	renesas_usbhs_call_notify_hotplug(pdev);



	/* clear status */

	__raw_writew(__raw_readw(priv->phy) | USB_PHY_INT_CLR, priv->phy);



	return IRQ_HANDLED;

}



static int usbhs_hardware_init(struct platform_device *pdev)

{

	struct usbhs_private *priv = usbhs_get_priv(pdev);

	int ret;



	/* clear interrupt status */

	__raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy);



	ret = request_irq(IRQ15, usbhs_interrupt, IRQF_TRIGGER_HIGH,

			  dev_name(&pdev->dev), pdev);

	if (ret) {

		dev_err(&pdev->dev, "request_irq err\n");

		return ret;

	}



	/* enable USB phy interrupt */

	__raw_writew(USB_PHY_MODE | USB_PHY_INT_EN, priv->phy);



	return 0;

}



static void usbhs_hardware_exit(struct platform_device *pdev)

{

	struct usbhs_private *priv = usbhs_get_priv(pdev);



	/* clear interrupt status */

	__raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy);



	free_irq(IRQ15, pdev);

}



static u32 usbhs_pipe_cfg[] = {

	USB_ENDPOINT_XFER_CONTROL,

	USB_ENDPOINT_XFER_ISOC,

	USB_ENDPOINT_XFER_ISOC,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_INT,

	USB_ENDPOINT_XFER_INT,

	USB_ENDPOINT_XFER_INT,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

	USB_ENDPOINT_XFER_BULK,

};



static struct usbhs_private usbhs_private = {

	.phy	= 0xe60781e0,		/* USBPHYINT */

	.cr2	= 0xe605810c,		/* USBCR2 */

	.info = {

		.platform_callback = {

			.hardware_init	= usbhs_hardware_init,

			.hardware_exit	= usbhs_hardware_exit,

			.get_id		= usbhs_get_id,

			.phy_reset	= usbhs_phy_reset,

			.get_vbus	= usbhs_get_vbus,

		},

		.driver_param = {

			.buswait_bwait	= 4,

			.has_otg	= 1,

			.pipe_type	= usbhs_pipe_cfg,

			.pipe_size	= ARRAY_SIZE(usbhs_pipe_cfg),

		},

	},

};



static struct resource usbhs_resources[] = {

	[0] = {

		.start	= 0xE6890000,

		.end	= 0xE68900e6 - 1,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= gic_spi(62),

		.end	= gic_spi(62),

		.flags	= IORESOURCE_IRQ,

	},

};



static struct platform_device usbhs_device = {

	.name	= "renesas_usbhs",

	.id	= -1,

	.dev = {

		.dma_mask		= NULL,

		.coherent_dma_mask	= 0xffffffff,

		.platform_data		= &usbhs_private.info,

	},

	.num_resources	= ARRAY_SIZE(usbhs_resources),

	.resource	= usbhs_resources,

};



/* LCDC */

static struct fb_videomode kzm_lcdc_mode = {

	.name		= "WVGA Panel",
@@ -361,6 +507,7 @@ static struct i2c_board_info i2c3_devices[] = { 
static struct platform_device *kzm_devices[] __initdata = {

	&smsc_device,

	&usb_host_device,

	&usbhs_device,

	&lcdc_device,

	&mmc_device,

	&sdhi0_device,
@@ -512,6 +659,9 @@ static void __init kzm_init(void) 
	gpio_request(GPIO_FN_FSIAISLD,	NULL);

	gpio_request(GPIO_FN_FSIAOSLD,	NULL);



	/* enable USB */

	gpio_request(GPIO_FN_VBUS_0,	NULL);



#ifdef CONFIG_CACHE_L2X0

	/* Early BRESP enable, Shared attribute override enable, 64K*8way */

	l2x0_init(IOMEM(0xf0100000), 0x40460000, 0x82000fff);

CRA Git | Maintained and supported by SUSTech CRA and CCSE