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Commit 4c3f450b authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Paul Mundt
Browse files

sh: Add OHCI USB support for SH7786 



Signed-off-by: default avatarKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 600fa578

arch/sh/kernel/cpu/sh4a/setup-sh7786.c

+83 −0
Original line number Original line Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/serial_sci.h>

#include <linux/serial_sci.h>

#include <linux/io.h>

#include <linux/io.h>

#include <linux/mm.h>

#include <linux/mm.h>

#include <linux/dma-mapping.h>

#include <asm/mmzone.h>

#include <asm/mmzone.h>





static struct plat_sci_port sci_platform_data[] = {

static struct plat_sci_port sci_platform_data[] = {
@@ -68,12 +69,94 @@ static struct platform_device sci_device = { 
	},

	},

};

};





static struct resource usb_ohci_resources[] = {

	[0] = {

		.start	= 0xffe70400,

		.end	= 0xffe704ff,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= 77,

		.end	= 77,

		.flags	= IORESOURCE_IRQ,

	},

};



static u64 usb_ohci_dma_mask = DMA_BIT_MASK(32);

static struct platform_device usb_ohci_device = {

	.name		= "sh_ohci",

	.id		= -1,

	.dev = {

		.dma_mask		= &usb_ohci_dma_mask,

		.coherent_dma_mask	= DMA_BIT_MASK(32),

	},

	.num_resources	= ARRAY_SIZE(usb_ohci_resources),

	.resource	= usb_ohci_resources,

};



static struct platform_device *sh7786_devices[] __initdata = {

static struct platform_device *sh7786_devices[] __initdata = {

	&sci_device,

	&sci_device,

	&usb_ohci_device,

};

};







/*

 * Please call this function if your platform board

 * use external clock for USB

 * */

#define USBCTL0		0xffe70858

#define CLOCK_MODE_MASK 0xffffff7f

#define EXT_CLOCK_MODE  0x00000080

void __init sh7786_usb_use_exclock(void)

{

	u32 val = __raw_readl(USBCTL0) & CLOCK_MODE_MASK;

	__raw_writel(val | EXT_CLOCK_MODE, USBCTL0);

}



#define USBINITREG1	0xffe70094

#define USBINITREG2	0xffe7009c

#define USBINITVAL1	0x00ff0040

#define USBINITVAL2	0x00000001



#define USBPCTL1	0xffe70804

#define USBST		0xffe70808

#define PHY_ENB		0x00000001

#define PLL_ENB		0x00000002

#define PHY_RST		0x00000004

#define ACT_PLL_STATUS	0xc0000000

static void __init sh7786_usb_setup(void)

{

	int i = 1000000;



	/*

	 * USB initial settings

	 *

	 * The following settings are necessary

	 * for using the USB modules.

	 *

	 * see "USB Inital Settings" for detail

	 */

	__raw_writel(USBINITVAL1, USBINITREG1);

	__raw_writel(USBINITVAL2, USBINITREG2);



	/*

	 * Set the PHY and PLL enable bit

	 */

	__raw_writel(PHY_ENB | PLL_ENB, USBPCTL1);

	while (i-- &&

	       ((__raw_readl(USBST) & ACT_PLL_STATUS) != ACT_PLL_STATUS))

		cpu_relax();



	if (i) {

		/* Set the PHY RST bit */

		__raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);

		printk(KERN_INFO "sh7786 usb setup done\n");

	}

}



static int __init sh7786_devices_setup(void)

static int __init sh7786_devices_setup(void)

{

{

	sh7786_usb_setup();

	return platform_add_devices(sh7786_devices,

	return platform_add_devices(sh7786_devices,

				    ARRAY_SIZE(sh7786_devices));

				    ARRAY_SIZE(sh7786_devices));

}

}

drivers/usb/Kconfig

+1 −0
Original line number Original line Diff line number Diff line
@@ -47,6 +47,7 @@ config USB_ARCH_HAS_OHCI 
	default y if CPU_SUBTYPE_SH7720

	default y if CPU_SUBTYPE_SH7720

	default y if CPU_SUBTYPE_SH7721

	default y if CPU_SUBTYPE_SH7721

	default y if CPU_SUBTYPE_SH7763

	default y if CPU_SUBTYPE_SH7763

	default y if CPU_SUBTYPE_SH7786

	# more:

	# more:

	default PCI

	default PCI

drivers/usb/host/ohci-hcd.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -1049,7 +1049,8 @@ MODULE_LICENSE ("GPL"); 




#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \

#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \

    defined(CONFIG_CPU_SUBTYPE_SH7721) || \

    defined(CONFIG_CPU_SUBTYPE_SH7721) || \

    defined(CONFIG_CPU_SUBTYPE_SH7763)

    defined(CONFIG_CPU_SUBTYPE_SH7763) || \

    defined(CONFIG_CPU_SUBTYPE_SH7786)

#include "ohci-sh.c"

#include "ohci-sh.c"

#define PLATFORM_DRIVER		ohci_hcd_sh_driver

#define PLATFORM_DRIVER		ohci_hcd_sh_driver

#endif

#endif