Merge branch 'sh/r8a66597-udc'

arch/sh/boards/mach-kfr2r09/setup.c

@@ -16,6 +16,8 @@
 #include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/usb/r8a66597.h>
 #include <video/sh_mobile_lcdc.h>
 #include <asm/clock.h>
 #include <asm/machvec.h>
@@ -175,6 +177,35 @@ static struct platform_device kfr2r09_sh_lcdc_device = {
 	},
 };
 
+static struct r8a66597_platdata kfr2r09_usb0_gadget_data = {
+	.on_chip = 1,
+};
+
+static struct resource kfr2r09_usb0_gadget_resources[] = {
+	[0] = {
+		.start	= 0x04d80000,
+		.end	= 0x04d80123,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 65,
+		.end	= 65,
+		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
+	},
+};
+
+static struct platform_device kfr2r09_usb0_gadget_device = {
+	.name		= "r8a66597_udc",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= NULL,         /*  not use dma */
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data	= &kfr2r09_usb0_gadget_data,
+	},
+	.num_resources	= ARRAY_SIZE(kfr2r09_usb0_gadget_resources),
+	.resource	= kfr2r09_usb0_gadget_resources,
+};
+
 static struct platform_device *kfr2r09_devices[] __initdata = {
 	&kfr2r09_nor_flash_device,
 	&kfr2r09_nand_flash_device,
@@ -186,6 +217,74 @@ static struct platform_device *kfr2r09_devices[] __initdata = {
 #define BSC_CS0WCR 0xfec10024
 #define BSC_CS4BCR 0xfec10010
 #define BSC_CS4WCR 0xfec10030
+#define PORT_MSELCRB 0xa4050182
+
+static int kfr2r09_usb0_gadget_i2c_setup(void)
+{
+	struct i2c_adapter *a;
+	struct i2c_msg msg;
+	unsigned char buf[2];
+	int ret;
+
+	a = i2c_get_adapter(0);
+	if (!a)
+		return -ENODEV;
+
+	/* set bit 1 (the second bit) of chip at 0x09, register 0x13 */
+	buf[0] = 0x13;
+	msg.addr = 0x09;
+	msg.buf = buf;
+	msg.len = 1;
+	msg.flags = 0;
+	ret = i2c_transfer(a, &msg, 1);
+	if (ret != 1)
+		return -ENODEV;
+
+	buf[0] = 0;
+	msg.addr = 0x09;
+	msg.buf = buf;
+	msg.len = 1;
+	msg.flags = I2C_M_RD;
+	ret = i2c_transfer(a, &msg, 1);
+	if (ret != 1)
+		return -ENODEV;
+
+	buf[1] = buf[0] | (1 << 1);
+	buf[0] = 0x13;
+	msg.addr = 0x09;
+	msg.buf = buf;
+	msg.len = 2;
+	msg.flags = 0;
+	ret = i2c_transfer(a, &msg, 1);
+	if (ret != 1)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int kfr2r09_usb0_gadget_setup(void)
+{
+	int plugged_in;
+
+	gpio_request(GPIO_PTN4, NULL); /* USB_DET */
+	gpio_direction_input(GPIO_PTN4);
+	plugged_in = gpio_get_value(GPIO_PTN4);
+	if (!plugged_in)
+		return -ENODEV; /* no cable plugged in */
+
+	if (kfr2r09_usb0_gadget_i2c_setup() != 0)
+		return -ENODEV; /* unable to configure using i2c */
+
+	ctrl_outw((ctrl_inw(PORT_MSELCRB) & ~0xc000) | 0x8000, PORT_MSELCRB);
+	gpio_request(GPIO_FN_PDSTATUS, NULL); /* R-standby disables USB clock */
+	gpio_request(GPIO_PTV6, NULL); /* USBCLK_ON */
+	gpio_direction_output(GPIO_PTV6, 1); /* USBCLK_ON = H */
+	msleep(20); /* wait 20ms to let the clock settle */
+	clk_enable(clk_get(NULL, "usb0"));
+	ctrl_outw(0x0600, 0xa40501d4);
+
+	return 0;
+}
 
 static int __init kfr2r09_devices_setup(void)
 {
@@ -245,6 +344,10 @@ static int __init kfr2r09_devices_setup(void)
 	gpio_request(GPIO_PTU0, NULL); /* LEDSTDBY/ */
 	gpio_direction_output(GPIO_PTU0, 1);
 
+	/* setup USB function */
+	if (kfr2r09_usb0_gadget_setup() == 0)
+		platform_device_register(&kfr2r09_usb0_gadget_device);
+
 	return platform_add_devices(kfr2r09_devices,
 				    ARRAY_SIZE(kfr2r09_devices));
 }

arch/sh/boards/mach-se/7724/setup.c

@@ -341,6 +341,35 @@ static struct platform_device sh7724_usb0_host_device = {
 	.resource	= sh7724_usb0_host_resources,
 };
 
+static struct r8a66597_platdata sh7724_usb1_gadget_data = {
+	.on_chip = 1,
+};
+
+static struct resource sh7724_usb1_gadget_resources[] = {
+	[0] = {
+		.start	= 0xa4d90000,
+		.end	= 0xa4d90123,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 66,
+		.end	= 66,
+		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
+	},
+};
+
+static struct platform_device sh7724_usb1_gadget_device = {
+	.name		= "r8a66597_udc",
+	.id		= 1, /* USB1 */
+	.dev = {
+		.dma_mask		= NULL,         /*  not use dma */
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &sh7724_usb1_gadget_data,
+	},
+	.num_resources	= ARRAY_SIZE(sh7724_usb1_gadget_resources),
+	.resource	= sh7724_usb1_gadget_resources,
+};
+
 static struct platform_device *ms7724se_devices[] __initdata = {
 	&heartbeat_device,
 	&smc91x_eth_device,
@@ -351,6 +380,7 @@ static struct platform_device *ms7724se_devices[] __initdata = {
 	&keysc_device,
 	&sh_eth_device,
 	&sh7724_usb0_host_device,
+	&sh7724_usb1_gadget_device,
 };
 
 #define EEPROM_OP   0xBA206000
@@ -459,6 +489,9 @@ static int __init devices_setup(void)
 	/* enable USB0 port */
 	ctrl_outw(0x0600, 0xa40501d4);
 
+	/* enable USB1 port */
+	ctrl_outw(0x0600, 0xa4050192);
+
 	/* enable IRQ 0,1,2 */
 	gpio_request(GPIO_FN_INTC_IRQ0, NULL);
 	gpio_request(GPIO_FN_INTC_IRQ1, NULL);

drivers/usb/gadget/Kconfig

@@ -251,6 +251,24 @@ config USB_PXA25X_SMALL
 	default y if USB_ETH
 	default y if USB_G_SERIAL
 
+config USB_GADGET_R8A66597
+	boolean "Renesas R8A66597 USB Peripheral Controller"
+	select USB_GADGET_DUALSPEED
+	help
+	   R8A66597 is a discrete USB host and peripheral controller chip that
+	   supports both full and high speed USB 2.0 data transfers.
+	   It has nine configurable endpoints, and endpoint zero.
+
+	   Say "y" to link the driver statically, or "m" to build a
+	   dynamically linked module called "r8a66597_udc" and force all
+	   gadget drivers to also be dynamically linked.
+
+config USB_R8A66597
+	tristate
+	depends on USB_GADGET_R8A66597
+	default USB_GADGET
+	select USB_GADGET_SELECTED
+
 config USB_GADGET_PXA27X
 	boolean "PXA 27x"
 	depends on ARCH_PXA && (PXA27x || PXA3xx)

drivers/usb/gadget/Makefile

@@ -23,6 +23,7 @@ ifeq ($(CONFIG_ARCH_MXC),y)
 fsl_usb2_udc-objs		+= fsl_mx3_udc.o
 endif
 obj-$(CONFIG_USB_M66592)	+= m66592-udc.o
+obj-$(CONFIG_USB_R8A66597)	+= r8a66597-udc.o
 obj-$(CONFIG_USB_FSL_QE)	+= fsl_qe_udc.o
 obj-$(CONFIG_USB_CI13XXX)	+= ci13xxx_udc.o
 obj-$(CONFIG_USB_S3C_HSOTG)	+= s3c-hsotg.o

drivers/usb/gadget/gadget_chips.h

@@ -173,6 +173,12 @@
 // CONFIG_USB_GADGET_AU1X00
 // ...
 
+#ifdef CONFIG_USB_GADGET_R8A66597
+#define	gadget_is_r8a66597(g)	!strcmp("r8a66597_udc", (g)->name)
+#else
+#define	gadget_is_r8a66597(g)	0
+#endif
+
 
 /**
  * usb_gadget_controller_number - support bcdDevice id convention
@@ -239,6 +245,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
 		return 0x23;
 	else if (gadget_is_langwell(gadget))
 		return 0x24;
+	else if (gadget_is_r8a66597(gadget))
+		return 0x25;
 	return -ENOENT;
 }
 

drivers/usb/gadget/r8a66597-udc.h

+/*
+ * R8A66597 UDC
+ *
+ * Copyright (C) 2007-2009 Renesas Solutions Corp.
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __R8A66597_H__
+#define __R8A66597_H__
+
+#ifdef CONFIG_HAVE_CLK
+#include <linux/clk.h>
+#endif
+
+#include <linux/usb/r8a66597.h>
+
+#define R8A66597_MAX_SAMPLING	10
+
+#define R8A66597_MAX_NUM_PIPE	8
+#define R8A66597_MAX_NUM_BULK	3
+#define R8A66597_MAX_NUM_ISOC	2
+#define R8A66597_MAX_NUM_INT	2
+
+#define R8A66597_BASE_PIPENUM_BULK	3
+#define R8A66597_BASE_PIPENUM_ISOC	1
+#define R8A66597_BASE_PIPENUM_INT	6
+
+#define R8A66597_BASE_BUFNUM	6
+#define R8A66597_MAX_BUFNUM	0x4F
+
+#define is_bulk_pipe(pipenum)	\
+	((pipenum >= R8A66597_BASE_PIPENUM_BULK) && \
+	 (pipenum < (R8A66597_BASE_PIPENUM_BULK + R8A66597_MAX_NUM_BULK)))
+#define is_interrupt_pipe(pipenum)	\
+	((pipenum >= R8A66597_BASE_PIPENUM_INT) && \
+	 (pipenum < (R8A66597_BASE_PIPENUM_INT + R8A66597_MAX_NUM_INT)))
+#define is_isoc_pipe(pipenum)	\
+	((pipenum >= R8A66597_BASE_PIPENUM_ISOC) && \
+	 (pipenum < (R8A66597_BASE_PIPENUM_ISOC + R8A66597_MAX_NUM_ISOC)))
+
+struct r8a66597_pipe_info {
+	u16	pipe;
+	u16	epnum;
+	u16	maxpacket;
+	u16	type;
+	u16	interval;
+	u16	dir_in;
+};
+
+struct r8a66597_request {
+	struct usb_request	req;
+	struct list_head	queue;
+};
+
+struct r8a66597_ep {
+	struct usb_ep		ep;
+	struct r8a66597		*r8a66597;
+
+	struct list_head	queue;
+	unsigned		busy:1;
+	unsigned		internal_ccpl:1;	/* use only control */
+
+	/* this member can able to after r8a66597_enable */
+	unsigned		use_dma:1;
+	u16			pipenum;
+	u16			type;
+	const struct usb_endpoint_descriptor	*desc;
+	/* register address */
+	unsigned char		fifoaddr;
+	unsigned char		fifosel;
+	unsigned char		fifoctr;
+	unsigned char		fifotrn;
+	unsigned char		pipectr;
+};
+
+struct r8a66597 {
+	spinlock_t		lock;
+	unsigned long		reg;
+
+#ifdef CONFIG_HAVE_CLK
+	struct clk *clk;
+#endif
+	struct r8a66597_platdata	*pdata;
+
+	struct usb_gadget		gadget;
+	struct usb_gadget_driver	*driver;
+
+	struct r8a66597_ep	ep[R8A66597_MAX_NUM_PIPE];
+	struct r8a66597_ep	*pipenum2ep[R8A66597_MAX_NUM_PIPE];
+	struct r8a66597_ep	*epaddr2ep[16];
+
+	struct timer_list	timer;
+	struct usb_request	*ep0_req;	/* for internal request */
+	u16			ep0_data;	/* for internal request */
+	u16			old_vbus;
+	u16			scount;
+	u16			old_dvsq;
+
+	/* pipe config */
+	unsigned char bulk;
+	unsigned char interrupt;
+	unsigned char isochronous;
+	unsigned char num_dma;
+
+	unsigned irq_sense_low:1;
+};
+
+#define gadget_to_r8a66597(_gadget)	\
+		container_of(_gadget, struct r8a66597, gadget)
+#define r8a66597_to_gadget(r8a66597) (&r8a66597->gadget)
+
+static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
+{
+	return inw(r8a66597->reg + offset);
+}
+
+static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
+				      unsigned long offset, u16 *buf,
+				      int len)
+{
+	if (r8a66597->pdata->on_chip) {
+		unsigned long fifoaddr = r8a66597->reg + offset;
+		unsigned long count;
+		union {
+			unsigned long dword;
+			unsigned char byte[4];
+		} data;
+		unsigned char *pb;
+		int i;
+
+		count = len / 4;
+		insl(fifoaddr, buf, count);
+
+		if (len & 0x00000003) {
+			data.dword = inl(fifoaddr);
+			pb = (unsigned char *)buf + count * 4;
+			for (i = 0; i < (len & 0x00000003); i++)
+				pb[i] = data.byte[i];
+		}
+	} else {
+		len = (len + 1) / 2;
+		insw(r8a66597->reg + offset, buf, len);
+	}
+}
+
+static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
+				  unsigned long offset)
+{
+	outw(val, r8a66597->reg + offset);
+}
+
+static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
+				       unsigned long offset, u16 *buf,
+				       int len)
+{
+	unsigned long fifoaddr = r8a66597->reg + offset;
+
+	if (r8a66597->pdata->on_chip) {
+		unsigned long count;
+		unsigned char *pb;
+		int i;
+
+		count = len / 4;
+		outsl(fifoaddr, buf, count);
+
+		if (len & 0x00000003) {
+			pb = (unsigned char *)buf + count * 4;
+			for (i = 0; i < (len & 0x00000003); i++) {
+				if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)
+					outb(pb[i], fifoaddr + i);
+				else
+					outb(pb[i], fifoaddr + 3 - i);
+			}
+		}
+	} else {
+		int odd = len & 0x0001;
+
+		len = len / 2;
+		outsw(fifoaddr, buf, len);
+		if (unlikely(odd)) {
+			buf = &buf[len];
+			outb((unsigned char)*buf, fifoaddr);
+		}
+	}
+}
+
+static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
+				 u16 val, u16 pat, unsigned long offset)
+{
+	u16 tmp;
+	tmp = r8a66597_read(r8a66597, offset);
+	tmp = tmp & (~pat);
+	tmp = tmp | val;
+	r8a66597_write(r8a66597, tmp, offset);
+}
+
+static inline u16 get_xtal_from_pdata(struct r8a66597_platdata *pdata)
+{
+	u16 clock = 0;
+
+	switch (pdata->xtal) {
+	case R8A66597_PLATDATA_XTAL_12MHZ:
+		clock = XTAL12;
+		break;
+	case R8A66597_PLATDATA_XTAL_24MHZ:
+		clock = XTAL24;
+		break;
+	case R8A66597_PLATDATA_XTAL_48MHZ:
+		clock = XTAL48;
+		break;
+	default:
+		printk(KERN_ERR "r8a66597: platdata clock is wrong.\n");
+		break;
+	}
+
+	return clock;
+}
+
+#define r8a66597_bclr(r8a66597, val, offset)	\
+			r8a66597_mdfy(r8a66597, 0, val, offset)
+#define r8a66597_bset(r8a66597, val, offset)	\
+			r8a66597_mdfy(r8a66597, val, 0, offset)
+
+#define get_pipectr_addr(pipenum)	(PIPE1CTR + (pipenum - 1) * 2)
+
+#define enable_irq_ready(r8a66597, pipenum)	\
+	enable_pipe_irq(r8a66597, pipenum, BRDYENB)
+#define disable_irq_ready(r8a66597, pipenum)	\
+	disable_pipe_irq(r8a66597, pipenum, BRDYENB)
+#define enable_irq_empty(r8a66597, pipenum)	\
+	enable_pipe_irq(r8a66597, pipenum, BEMPENB)
+#define disable_irq_empty(r8a66597, pipenum)	\
+	disable_pipe_irq(r8a66597, pipenum, BEMPENB)
+#define enable_irq_nrdy(r8a66597, pipenum)	\
+	enable_pipe_irq(r8a66597, pipenum, NRDYENB)
+#define disable_irq_nrdy(r8a66597, pipenum)	\
+	disable_pipe_irq(r8a66597, pipenum, NRDYENB)
+
+#endif	/* __R8A66597_H__ */
+