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usb: m66592-udc platform data on_chip support 

Convert the m66592-udc driver to use the on_chip flag
from platform data to enable on chip behaviour instead
of relying on CONFIG_SUPERH_BUILT_IN_M66592 ugliness.

This makes the code cleaner and also allows us to support
both external and internal m66592 with the same kernel.

It also makes the Kconfig part more future proof since
we with this patch can add support for new processors
with on-chip m66592 without modifying the Kconfig.

The patch adds a m66592 header file for platform data
and ties in platform data to the existing m66592 devices.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-07-22 14:41:35 +00:00 коммит произвёл Paul Mundt
Родитель cf4f1e76c4
Коммит 2c59b0b70b
7 изменённых файлов: 262 добавлений и 165 удалений
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7
arch/sh/boards/mach-highlander/setup.c
Просмотреть файл

@ -22,6 +22,7 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/usb/r8a66597.h>
#include <linux/usb/m66592.h>
#include <net/ax88796.h>
#include <asm/machvec.h>
#include <mach/highlander.h>
@ -60,6 +61,11 @@ static struct platform_device r8a66597_usb_host_device = {
.resource = r8a66597_usb_host_resources,
};
static struct m66592_platdata usbf_platdata = {
.xtal = M66592_PLATDATA_XTAL_24MHZ,
.vif = 1,
};
static struct resource m66592_usb_peripheral_resources[] = {
[0] = {
.name = "m66592_udc",
@ -81,6 +87,7 @@ static struct platform_device m66592_usb_peripheral_device = {
.dev = {
.dma_mask = NULL, /* don't use dma */
.coherent_dma_mask = 0xffffffff,
.platform_data = &usbf_platdata,
},
.num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources),
.resource = m66592_usb_peripheral_resources,

7
arch/sh/boards/mach-x3proto/setup.c
Просмотреть файл

@ -17,6 +17,7 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/usb/r8a66597.h>
#include <linux/usb/m66592.h>
#include <asm/ilsel.h>
static struct resource heartbeat_resources[] = {
@ -89,6 +90,11 @@ static struct platform_device r8a66597_usb_host_device = {
.resource = r8a66597_usb_host_resources,
};
static struct m66592_platdata usbf_platdata = {
.xtal = M66592_PLATDATA_XTAL_24MHZ,
.vif = 1,
};
static struct resource m66592_usb_peripheral_resources[] = {
[0] = {
.name = "m66592_udc",
@ -109,6 +115,7 @@ static struct platform_device m66592_usb_peripheral_device = {
.dev = {
.dma_mask = NULL, /* don't use dma */
.coherent_dma_mask = 0xffffffff,
.platform_data = &usbf_platdata,
},
.num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources),
.resource = m66592_usb_peripheral_resources,

8
arch/sh/kernel/cpu/sh4a/setup-sh7722.c
Просмотреть файл

@ -13,6 +13,7 @@
#include <linux/serial_sci.h>
#include <linux/mm.h>
#include <linux/uio_driver.h>
#include <linux/usb/m66592.h>
#include <linux/sh_timer.h>
#include <asm/clock.h>
#include <asm/mmzone.h>
@ -47,9 +48,13 @@ static struct platform_device rtc_device = {
.resource = rtc_resources,
};
static struct m66592_platdata usbf_platdata = {
.on_chip = 1,
};
static struct resource usbf_resources[] = {
[0] = {
.name = "m66592_udc",
.name = "USBF",
.start = 0x04480000,
.end = 0x044800FF,
.flags = IORESOURCE_MEM,
@ -67,6 +72,7 @@ static struct platform_device usbf_device = {
.dev = {
.dma_mask = NULL,
.coherent_dma_mask = 0xffffffff,
.platform_data = &usbf_platdata,
},
.num_resources = ARRAY_SIZE(usbf_resources),
.resource = usbf_resources,

10
drivers/usb/gadget/Kconfig
Просмотреть файл

@ -360,16 +360,6 @@ config USB_M66592
default USB_GADGET
select USB_GADGET_SELECTED
config SUPERH_BUILT_IN_M66592
boolean "Enable SuperH built-in USB like the M66592"
depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722
help
SH7722 has USB like the M66592.
The transfer rate is very slow when use "Ethernet Gadget".
However, this problem is improved if change a value of
NET_IP_ALIGN to 4.
#
# Controllers available only in discrete form (and all PCI controllers)
#

266
drivers/usb/gadget/m66592-udc.c
Просмотреть файл

@ -31,38 +31,12 @@
#include "m66592-udc.h"
MODULE_DESCRIPTION("M66592 USB gadget driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yoshihiro Shimoda");
MODULE_ALIAS("platform:m66592_udc");
#define DRIVER_VERSION "26 Jun 2009"
/* module parameters */
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
static unsigned short endian = M66592_LITTLE;
module_param(endian, ushort, 0644);
MODULE_PARM_DESC(endian, "data endian: big=0, little=0 (default=0)");
#else
static unsigned short clock = M66592_XTAL24;
module_param(clock, ushort, 0644);
MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 "
"(default=16384)");
static unsigned short vif = M66592_LDRV;
module_param(vif, ushort, 0644);
MODULE_PARM_DESC(vif, "input VIF: 3.3V=32768, 1.5V=0 (default=32768)");
static unsigned short endian;
module_param(endian, ushort, 0644);
MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)");
static unsigned short irq_sense = M66592_INTL;
module_param(irq_sense, ushort, 0644);
MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=2, falling edge=0 "
"(default=2)");
#endif
#define DRIVER_VERSION "21 July 2009"
static const char udc_name[] = "m66592_udc";
static const char *m66592_ep_name[] = {
@ -244,6 +218,7 @@ static inline int get_buffer_size(struct m66592 *m66592, u16 pipenum)
static inline void pipe_change(struct m66592 *m66592, u16 pipenum)
{
struct m66592_ep *ep = m66592->pipenum2ep[pipenum];
unsigned short mbw;
if (ep->use_dma)
return;
@ -252,7 +227,12 @@ static inline void pipe_change(struct m66592 *m66592, u16 pipenum)
ndelay(450);
m66592_bset(m66592, M66592_MBW, ep->fifosel);
if (m66592->pdata->on_chip)
mbw = M66592_MBW_32;
else
mbw = M66592_MBW_16;
m66592_bset(m66592, mbw, ep->fifosel);
}
static int pipe_buffer_setting(struct m66592 *m66592,
@ -332,6 +312,7 @@ static void pipe_buffer_release(struct m66592 *m66592,
static void pipe_initialize(struct m66592_ep *ep)
{
struct m66592 *m66592 = ep->m66592;
unsigned short mbw;
m66592_mdfy(m66592, 0, M66592_CURPIPE, ep->fifosel);
@ -343,7 +324,12 @@ static void pipe_initialize(struct m66592_ep *ep)
ndelay(450);
m66592_bset(m66592, M66592_MBW, ep->fifosel);
if (m66592->pdata->on_chip)
mbw = M66592_MBW_32;
else
mbw = M66592_MBW_16;
m66592_bset(m66592, mbw, ep->fifosel);
}
}
@ -359,15 +345,13 @@ static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
ep->fifosel = M66592_D0FIFOSEL;
ep->fifoctr = M66592_D0FIFOCTR;
ep->fifotrn = M66592_D0FIFOTRN;
#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
} else if (m66592->num_dma == 1) {
} else if (!m66592->pdata->on_chip && m66592->num_dma == 1) {
m66592->num_dma++;
ep->use_dma = 1;
ep->fifoaddr = M66592_D1FIFO;
ep->fifosel = M66592_D1FIFOSEL;
ep->fifoctr = M66592_D1FIFOCTR;
ep->fifotrn = M66592_D1FIFOTRN;
#endif
} else {
ep->use_dma = 0;
ep->fifoaddr = M66592_CFIFO;
@ -612,76 +596,120 @@ static void start_ep0(struct m66592_ep *ep, struct m66592_request *req)
}
}
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
static void init_controller(struct m66592 *m66592)
{
m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
unsigned int endian;
/* This is a workaound for SH7722 2nd cut */
m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
m66592_bset(m66592, 0x1000, M66592_TESTMODE);
m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
if (m66592->pdata->on_chip) {
if (m66592->pdata->endian)
endian = 0; /* big endian */
else
endian = M66592_LITTLE; /* little endian */
m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
m66592_write(m66592, 0, M66592_CFBCFG);
m66592_write(m66592, 0, M66592_D0FBCFG);
m66592_bset(m66592, endian, M66592_CFBCFG);
m66592_bset(m66592, endian, M66592_D0FBCFG);
/* This is a workaound for SH7722 2nd cut */
m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
m66592_bset(m66592, 0x1000, M66592_TESTMODE);
m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
m66592_write(m66592, 0, M66592_CFBCFG);
m66592_write(m66592, 0, M66592_D0FBCFG);
m66592_bset(m66592, endian, M66592_CFBCFG);
m66592_bset(m66592, endian, M66592_D0FBCFG);
} else {
unsigned int clock, vif, irq_sense;
if (m66592->pdata->endian)
endian = M66592_BIGEND; /* big endian */
else
endian = 0; /* little endian */
if (m66592->pdata->vif)
vif = M66592_LDRV; /* 3.3v */
else
vif = 0; /* 1.5v */
switch (m66592->pdata->xtal) {
case M66592_PLATDATA_XTAL_12MHZ:
clock = M66592_XTAL12;
break;
case M66592_PLATDATA_XTAL_24MHZ:
clock = M66592_XTAL24;
break;
case M66592_PLATDATA_XTAL_48MHZ:
clock = M66592_XTAL48;
break;
default:
pr_warning("m66592-udc: xtal configuration error\n");
clock = 0;
}
switch (m66592->irq_trigger) {
case IRQF_TRIGGER_LOW:
irq_sense = M66592_INTL;
break;
case IRQF_TRIGGER_FALLING:
irq_sense = 0;
break;
default:
pr_warning("m66592-udc: irq trigger config error\n");
irq_sense = 0;
}
m66592_bset(m66592,
(vif & M66592_LDRV) | (endian & M66592_BIGEND),
M66592_PINCFG);
m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
m66592_mdfy(m66592, clock & M66592_XTAL, M66592_XTAL,
M66592_SYSCFG);
m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
msleep(3);
m66592_bset(m66592, M66592_RCKE | M66592_PLLC, M66592_SYSCFG);
msleep(1);
m66592_bset(m66592, M66592_SCKE, M66592_SYSCFG);
m66592_bset(m66592, irq_sense & M66592_INTL, M66592_INTENB1);
m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
M66592_DMA0CFG);
}
}
#else /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
static void init_controller(struct m66592 *m66592)
{
m66592_bset(m66592, (vif & M66592_LDRV) | (endian & M66592_BIGEND),
M66592_PINCFG);
m66592_bset(m66592, M66592_HSE, M66592_SYSCFG); /* High spd */
m66592_mdfy(m66592, clock & M66592_XTAL, M66592_XTAL, M66592_SYSCFG);
m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
msleep(3);
m66592_bset(m66592, M66592_RCKE | M66592_PLLC, M66592_SYSCFG);
msleep(1);
m66592_bset(m66592, M66592_SCKE, M66592_SYSCFG);
m66592_bset(m66592, irq_sense & M66592_INTL, M66592_INTENB1);
m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
M66592_DMA0CFG);
}
#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
static void disable_controller(struct m66592 *m66592)
{
#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
#endif
if (!m66592->pdata->on_chip) {
m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
udelay(1);
m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
}
}
static void m66592_start_xclock(struct m66592 *m66592)
{
#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
u16 tmp;
tmp = m66592_read(m66592, M66592_SYSCFG);
if (!(tmp & M66592_XCKE))
m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
#endif
if (!m66592->pdata->on_chip) {
tmp = m66592_read(m66592, M66592_SYSCFG);
if (!(tmp & M66592_XCKE))
m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
}
}
/*-------------------------------------------------------------------------*/
@ -1169,8 +1197,7 @@ static irqreturn_t m66592_irq(int irq, void *_m66592)
intsts0 = m66592_read(m66592, M66592_INTSTS0);
intenb0 = m66592_read(m66592, M66592_INTENB0);
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
if (!intsts0 && !intenb0) {
if (m66592->pdata->on_chip && !intsts0 && !intenb0) {
/*
* When USB clock stops, it cannot read register. Even if a
* clock stops, the interrupt occurs. So this driver turn on
@ -1180,7 +1207,6 @@ static irqreturn_t m66592_irq(int irq, void *_m66592)
intsts0 = m66592_read(m66592, M66592_INTSTS0);
intenb0 = m66592_read(m66592, M66592_INTENB0);
}
#endif
savepipe = m66592_read(m66592, M66592_CFIFOSEL);
@ -1526,9 +1552,11 @@ static int __exit m66592_remove(struct platform_device *pdev)
iounmap(m66592->reg);
free_irq(platform_get_irq(pdev, 0), m66592);
m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
clk_disable(m66592->clk);
clk_put(m66592->clk);
#ifdef CONFIG_HAVE_CLK
if (m66592->pdata->on_chip) {
clk_disable(m66592->clk);
clk_put(m66592->clk);
}
#endif
kfree(m66592);
return 0;
@ -1540,11 +1568,10 @@ static void nop_completion(struct usb_ep *ep, struct usb_request *r)
static int __init m66592_probe(struct platform_device *pdev)
{
struct resource *res;
int irq;
struct resource *res, *ires;
void __iomem *reg = NULL;
struct m66592 *m66592 = NULL;
#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
#ifdef CONFIG_HAVE_CLK
char clk_name[8];
#endif
int ret = 0;
@ -1557,10 +1584,11 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!ires) {
ret = -ENODEV;
pr_err("platform_get_irq error.\n");
dev_err(&pdev->dev,
"platform_get_resource IORESOURCE_IRQ error.\n");
goto clean_up;
}
@ -1571,6 +1599,12 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
if (pdev->dev.platform_data == NULL) {
dev_err(&pdev->dev, "no platform data\n");
ret = -ENODEV;
goto clean_up;
}
/* initialize ucd */
m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL);
if (m66592 == NULL) {
@ -1578,6 +1612,9 @@ static int __init m66592_probe(struct platform_device *pdev)
goto clean_up;
}
m66592->pdata = pdev->dev.platform_data;
m66592->irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
spin_lock_init(&m66592->lock);
dev_set_drvdata(&pdev->dev, m66592);
@ -1595,22 +1632,25 @@ static int __init m66592_probe(struct platform_device *pdev)
m66592->timer.data = (unsigned long)m66592;
m66592->reg = reg;
ret = request_irq(irq, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
ret = request_irq(ires->start, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
udc_name, m66592);
if (ret < 0) {
pr_err("request_irq error (%d)\n", ret);
goto clean_up;
}
#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
m66592->clk = clk_get(&pdev->dev, clk_name);
if (IS_ERR(m66592->clk)) {
dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
ret = PTR_ERR(m66592->clk);
goto clean_up2;
#ifdef CONFIG_HAVE_CLK
if (m66592->pdata->on_chip) {
snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
m66592->clk = clk_get(&pdev->dev, clk_name);
if (IS_ERR(m66592->clk)) {
dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
clk_name);
ret = PTR_ERR(m66592->clk);
goto clean_up2;
}
clk_enable(m66592->clk);
}
clk_enable(m66592->clk);
#endif
INIT_LIST_HEAD(&m66592->gadget.ep_list);
m66592->gadget.ep0 = &m66592->ep[0].ep;
@ -1652,12 +1692,14 @@ static int __init m66592_probe(struct platform_device *pdev)
return 0;
clean_up3:
#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
clk_disable(m66592->clk);
clk_put(m66592->clk);
#ifdef CONFIG_HAVE_CLK
if (m66592->pdata->on_chip) {
clk_disable(m66592->clk);
clk_put(m66592->clk);
}
clean_up2:
#endif
free_irq(irq, m66592);
free_irq(ires->start, m66592);
clean_up:
if (m66592) {
if (m66592->ep0_req)

85
drivers/usb/gadget/m66592-udc.h
Просмотреть файл

@ -23,10 +23,12 @@
#ifndef __M66592_UDC_H__
#define __M66592_UDC_H__
#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
#ifdef CONFIG_HAVE_CLK
#include <linux/clk.h>
#endif
#include <linux/usb/m66592.h>
#define M66592_SYSCFG 0x00
#define M66592_XTAL 0xC000 /* b15-14: Crystal selection */
#define M66592_XTAL48 0x8000 /* 48MHz */
@ -76,11 +78,11 @@
#define M66592_P_TST_J 0x0001 /* PERI TEST J */
#define M66592_P_TST_NORMAL 0x0000 /* PERI Normal Mode */
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
/* built-in registers */
#define M66592_CFBCFG 0x0A
#define M66592_D0FBCFG 0x0C
#define M66592_LITTLE 0x0100 /* b8: Little endian mode */
#else
/* external chip case */
#define M66592_PINCFG 0x0A
#define M66592_LDRV 0x8000 /* b15: Drive Current Adjust */
#define M66592_BIGEND 0x0100 /* b8: Big endian mode */
@ -100,8 +102,8 @@
#define M66592_PKTM 0x0020 /* b5: Packet mode */
#define M66592_DENDE 0x0010 /* b4: Dend enable */
#define M66592_OBUS 0x0004 /* b2: OUTbus mode */
#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
/* common case */
#define M66592_CFIFO 0x10
#define M66592_D0FIFO 0x14
#define M66592_D1FIFO 0x18
@ -113,13 +115,9 @@
#define M66592_REW 0x4000 /* b14: Buffer rewind */
#define M66592_DCLRM 0x2000 /* b13: DMA buffer clear mode */
#define M66592_DREQE 0x1000 /* b12: DREQ output enable */
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
#define M66592_MBW 0x0800 /* b11: Maximum bit width for FIFO */
#else
#define M66592_MBW 0x0400 /* b10: Maximum bit width for FIFO */
#define M66592_MBW_8 0x0000 /* 8bit */
#define M66592_MBW_16 0x0400 /* 16bit */
#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
#define M66592_MBW_8 0x0000 /* 8bit */
#define M66592_MBW_16 0x0400 /* 16bit */
#define M66592_MBW_32 0x0800 /* 32bit */
#define M66592_TRENB 0x0200 /* b9: Transaction counter enable */
#define M66592_TRCLR 0x0100 /* b8: Transaction counter clear */
#define M66592_DEZPM 0x0080 /* b7: Zero-length packet mode */
@ -480,9 +478,11 @@ struct m66592_ep {
struct m66592 {
spinlock_t lock;
void __iomem *reg;
#if defined(CONFIG_SUPERH_BUILT_IN_M66592) && defined(CONFIG_HAVE_CLK)
#ifdef CONFIG_HAVE_CLK
struct clk *clk;
#endif
struct m66592_platdata *pdata;
unsigned long irq_trigger;
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
@ -546,13 +546,13 @@ static inline void m66592_read_fifo(struct m66592 *m66592,
{
unsigned long fifoaddr = (unsigned long)m66592->reg + offset;
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
len = (len + 3) / 4;
insl(fifoaddr, buf, len);
#else
len = (len + 1) / 2;
insw(fifoaddr, buf, len);
#endif
if (m66592->pdata->on_chip) {
len = (len + 3) / 4;
insl(fifoaddr, buf, len);
} else {
len = (len + 1) / 2;
insw(fifoaddr, buf, len);
}
}
static inline void m66592_write(struct m66592 *m66592, u16 val,
@ -566,33 +566,34 @@ static inline void m66592_write_fifo(struct m66592 *m66592,
void *buf, unsigned long len)
{
unsigned long fifoaddr = (unsigned long)m66592->reg + offset;
#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
unsigned long count;
unsigned char *pb;
int i;
count = len / 4;
outsl(fifoaddr, buf, count);
if (m66592->pdata->on_chip) {
unsigned long count;
unsigned char *pb;
int i;
if (len & 0x00000003) {
pb = buf + count * 4;
for (i = 0; i < (len & 0x00000003); i++) {
if (m66592_read(m66592, M66592_CFBCFG)) /* little */
outb(pb[i], fifoaddr + (3 - i));
else
outb(pb[i], fifoaddr + i);
count = len / 4;
outsl(fifoaddr, buf, count);
if (len & 0x00000003) {
pb = buf + count * 4;
for (i = 0; i < (len & 0x00000003); i++) {
if (m66592_read(m66592, M66592_CFBCFG)) /* le */
outb(pb[i], fifoaddr + (3 - i));
else
outb(pb[i], fifoaddr + i);
}
}
} else {
unsigned long odd = len & 0x0001;
len = len / 2;
outsw(fifoaddr, buf, len);
if (odd) {
unsigned char *p = buf + len*2;
outb(*p, fifoaddr);
}
}
#else
unsigned long odd = len & 0x0001;
len = len / 2;
outsw(fifoaddr, buf, len);
if (odd) {
unsigned char *p = buf + len*2;
outb(*p, fifoaddr);
}
#endif /* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
}
static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat,

44
include/linux/usb/m66592.h Normal file
Просмотреть файл

@ -0,0 +1,44 @@
/*
* M66592 driver platform data
*
* Copyright (C) 2009 Renesas Solutions Corp.
*
* 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 __LINUX_USB_M66592_H
#define __LINUX_USB_M66592_H
#define M66592_PLATDATA_XTAL_12MHZ 0x01
#define M66592_PLATDATA_XTAL_24MHZ 0x02
#define M66592_PLATDATA_XTAL_48MHZ 0x03
struct m66592_platdata {
/* one = on chip controller, zero = external controller */
unsigned on_chip:1;
/* one = big endian, zero = little endian */
unsigned endian:1;
/* (external controller only) M66592_PLATDATA_XTAL_nnMHZ */
unsigned xtal:2;
/* (external controller only) one = 3.3V, zero = 1.5V */
unsigned vif:1;
};
#endif /* __LINUX_USB_M66592_H */