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Merge branch 'sa1111' into sa11x0

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Conflicts:
	arch/arm/common/sa1111.c
	arch/arm/mach-sa1100/neponset.c

Fixed:
	arch/arm/mach-sa1100/assabet.c
for the neponset changes
This commit is contained in:
Russell King 2012-03-25 23:54:16 +01:00
commit 374da9da22
10 changed files with 469 additions and 455 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

283
arch/arm/common/sa1111.c
View File

@ -16,6 +16,7 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/errno.h>
@ -28,9 +29,8 @@
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/irq.h>
#include <asm/mach-types.h>
#include <asm/sizes.h>
#include <asm/hardware/sa1111.h>
@ -86,8 +86,10 @@
#define IRQ_S1_CD_VALID (52)
#define IRQ_S0_BVD1_STSCHG (53)
#define IRQ_S1_BVD1_STSCHG (54)
#define SA1111_IRQ_NR (55)
extern void sa1110_mb_enable(void);
extern void sa1110_mb_disable(void);
/*
* We keep the following data for the overall SA1111. Note that the
@ -104,6 +106,7 @@ struct sa1111 {
int irq_base; /* base for cascaded on-chip IRQs */
spinlock_t lock;
void __iomem *base;
struct sa1111_platform_data *pdata;
#ifdef CONFIG_PM
void *saved_state;
#endif
@ -118,6 +121,7 @@ static struct sa1111 *g_sa1111;
struct sa1111_dev_info {
unsigned long offset;
unsigned long skpcr_mask;
bool dma;
unsigned int devid;
unsigned int irq[6];
};
@ -126,6 +130,7 @@ static struct sa1111_dev_info sa1111_devices[] = {
{
.offset = SA1111_USB,
.skpcr_mask = SKPCR_UCLKEN,
.dma = true,
.devid = SA1111_DEVID_USB,
.irq = {
IRQ_USBPWR,
@ -139,6 +144,7 @@ static struct sa1111_dev_info sa1111_devices[] = {
{
.offset = 0x0600,
.skpcr_mask = SKPCR_I2SCLKEN | SKPCR_L3CLKEN,
.dma = true,
.devid = SA1111_DEVID_SAC,
.irq = {
AUDXMTDMADONEA,
@ -155,7 +161,7 @@ static struct sa1111_dev_info sa1111_devices[] = {
{
.offset = SA1111_KBD,
.skpcr_mask = SKPCR_PTCLKEN,
.devid = SA1111_DEVID_PS2,
.devid = SA1111_DEVID_PS2_KBD,
.irq = {
IRQ_TPRXINT,
IRQ_TPTXINT
@ -164,7 +170,7 @@ static struct sa1111_dev_info sa1111_devices[] = {
{
.offset = SA1111_MSE,
.skpcr_mask = SKPCR_PMCLKEN,
.devid = SA1111_DEVID_PS2,
.devid = SA1111_DEVID_PS2_MSE,
.irq = {
IRQ_MSRXINT,
IRQ_MSTXINT
@ -434,16 +440,28 @@ static struct irq_chip sa1111_high_chip = {
.irq_set_wake = sa1111_wake_highirq,
};
static void sa1111_setup_irq(struct sa1111 *sachip)
static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base)
{
void __iomem *irqbase = sachip->base + SA1111_INTC;
unsigned int irq;
unsigned i, irq;
int ret;
/*
* We're guaranteed that this region hasn't been taken.
*/
request_mem_region(sachip->phys + SA1111_INTC, 512, "irq");
ret = irq_alloc_descs(-1, irq_base, SA1111_IRQ_NR, -1);
if (ret <= 0) {
dev_err(sachip->dev, "unable to allocate %u irqs: %d\n",
SA1111_IRQ_NR, ret);
if (ret == 0)
ret = -EINVAL;
return ret;
}
sachip->irq_base = ret;
/* disable all IRQs */
sa1111_writel(0, irqbase + SA1111_INTEN0);
sa1111_writel(0, irqbase + SA1111_INTEN1);
@ -463,14 +481,16 @@ static void sa1111_setup_irq(struct sa1111 *sachip)
sa1111_writel(~0, irqbase + SA1111_INTSTATCLR0);
sa1111_writel(~0, irqbase + SA1111_INTSTATCLR1);
for (irq = IRQ_GPAIN0; irq <= SSPROR; irq++) {
for (i = IRQ_GPAIN0; i <= SSPROR; i++) {
irq = sachip->irq_base + i;
irq_set_chip_and_handler(irq, &sa1111_low_chip,
handle_edge_irq);
irq_set_chip_data(irq, sachip);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
for (irq = AUDXMTDMADONEA; irq <= IRQ_S1_BVD1_STSCHG; irq++) {
for (i = AUDXMTDMADONEA; i <= IRQ_S1_BVD1_STSCHG; i++) {
irq = sachip->irq_base + i;
irq_set_chip_and_handler(irq, &sa1111_high_chip,
handle_edge_irq);
irq_set_chip_data(irq, sachip);
@ -483,6 +503,11 @@ static void sa1111_setup_irq(struct sa1111 *sachip)
irq_set_irq_type(sachip->irq, IRQ_TYPE_EDGE_RISING);
irq_set_handler_data(sachip->irq, sachip);
irq_set_chained_handler(sachip->irq, sa1111_irq_handler);
dev_info(sachip->dev, "Providing IRQ%u-%u\n",
sachip->irq_base, sachip->irq_base + SA1111_IRQ_NR - 1);
return 0;
}
/*
@ -581,41 +606,10 @@ sa1111_configure_smc(struct sa1111 *sachip, int sdram, unsigned int drac,
}
#endif
#ifdef CONFIG_DMABOUNCE
/*
* According to the "Intel StrongARM SA-1111 Microprocessor Companion
* Chip Specification Update" (June 2000), erratum #7, there is a
* significant bug in the SA1111 SDRAM shared memory controller. If
* an access to a region of memory above 1MB relative to the bank base,
* it is important that address bit 10 _NOT_ be asserted. Depending
* on the configuration of the RAM, bit 10 may correspond to one
* of several different (processor-relative) address bits.
*
* This routine only identifies whether or not a given DMA address
* is susceptible to the bug.
*
* This should only get called for sa1111_device types due to the
* way we configure our device dma_masks.
*/
static int sa1111_needs_bounce(struct device *dev, dma_addr_t addr, size_t size)
{
/*
* Section 4.6 of the "Intel StrongARM SA-1111 Development Module
* User's Guide" mentions that jumpers R51 and R52 control the
* target of SA-1111 DMA (either SDRAM bank 0 on Assabet, or
* SDRAM bank 1 on Neponset). The default configuration selects
* Assabet, so any address in bank 1 is necessarily invalid.
*/
return (machine_is_assabet() || machine_is_pfs168()) &&
(addr >= 0xc8000000 || (addr + size) >= 0xc8000000);
}
#endif
static void sa1111_dev_release(struct device *_dev)
{
struct sa1111_dev *dev = SA1111_DEV(_dev);
release_resource(&dev->res);
kfree(dev);
}
@ -624,67 +618,58 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
struct sa1111_dev_info *info)
{
struct sa1111_dev *dev;
unsigned i;
int ret;
dev = kzalloc(sizeof(struct sa1111_dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto out;
goto err_alloc;
}
device_initialize(&dev->dev);
dev_set_name(&dev->dev, "%4.4lx", info->offset);
dev->devid = info->devid;
dev->dev.parent = sachip->dev;
dev->dev.bus = &sa1111_bus_type;
dev->dev.release = sa1111_dev_release;
dev->dev.coherent_dma_mask = sachip->dev->coherent_dma_mask;
dev->res.start = sachip->phys + info->offset;
dev->res.end = dev->res.start + 511;
dev->res.name = dev_name(&dev->dev);
dev->res.flags = IORESOURCE_MEM;
dev->mapbase = sachip->base + info->offset;
dev->skpcr_mask = info->skpcr_mask;
memmove(dev->irq, info->irq, sizeof(dev->irq));
for (i = 0; i < ARRAY_SIZE(info->irq); i++)
dev->irq[i] = sachip->irq_base + info->irq[i];
/*
* If the parent device has a DMA mask associated with it, and
* this child supports DMA, propagate it down to the children.
*/
if (info->dma && sachip->dev->dma_mask) {
dev->dma_mask = *sachip->dev->dma_mask;
dev->dev.dma_mask = &dev->dma_mask;
dev->dev.coherent_dma_mask = sachip->dev->coherent_dma_mask;
}
ret = request_resource(parent, &dev->res);
if (ret) {
printk("SA1111: failed to allocate resource for %s\n",
dev_err(sachip->dev, "failed to allocate resource for %s\n",
dev->res.name);
dev_set_name(&dev->dev, NULL);
kfree(dev);
goto out;
goto err_resource;
}
ret = device_add(&dev->dev);
if (ret)
goto err_add;
return 0;
ret = device_register(&dev->dev);
if (ret) {
release_resource(&dev->res);
kfree(dev);
goto out;
}
#ifdef CONFIG_DMABOUNCE
/*
* If the parent device has a DMA mask associated with it,
* propagate it down to the children.
*/
if (sachip->dev->dma_mask) {
dev->dma_mask = *sachip->dev->dma_mask;
dev->dev.dma_mask = &dev->dma_mask;
if (dev->dma_mask != 0xffffffffUL) {
ret = dmabounce_register_dev(&dev->dev, 1024, 4096,
sa1111_needs_bounce);
if (ret) {
dev_err(&dev->dev, "SA1111: Failed to register"
" with dmabounce\n");
device_unregister(&dev->dev);
}
}
}
#endif
out:
err_add:
release_resource(&dev->res);
err_resource:
put_device(&dev->dev);
err_alloc:
return ret;
}
@ -698,16 +683,21 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
* Returns:
* %-ENODEV device not found.
* %-EBUSY physical address already marked in-use.
* %-EINVAL no platform data passed
* %0 successful.
*/
static int __devinit
__sa1111_probe(struct device *me, struct resource *mem, int irq)
{
struct sa1111_platform_data *pd = me->platform_data;
struct sa1111 *sachip;
unsigned long id;
unsigned int has_devs;
int i, ret = -ENODEV;
if (!pd)
return -EINVAL;
sachip = kzalloc(sizeof(struct sa1111), GFP_KERNEL);
if (!sachip)
return -ENOMEM;
@ -727,6 +717,7 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
sachip->dev = me;
dev_set_drvdata(sachip->dev, sachip);
sachip->pdata = pd;
sachip->phys = mem->start;
sachip->irq = irq;
@ -759,6 +750,16 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
*/
sa1111_wake(sachip);
/*
* The interrupt controller must be initialised before any
* other device to ensure that the interrupts are available.
*/
if (sachip->irq != NO_IRQ) {
ret = sa1111_setup_irq(sachip, pd->irq_base);
if (ret)
goto err_unmap;
}
#ifdef CONFIG_ARCH_SA1100
{
unsigned int val;
@ -789,24 +790,14 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
}
#endif
/*
* The interrupt controller must be initialised before any
* other device to ensure that the interrupts are available.
*/
if (sachip->irq != NO_IRQ)
sa1111_setup_irq(sachip);
g_sa1111 = sachip;
has_devs = ~0;
if (machine_is_assabet() || machine_is_jornada720() ||
machine_is_badge4())
has_devs &= ~(1 << 4);
else
has_devs &= ~(1 << 1);
if (pd)
has_devs &= ~pd->disable_devs;
for (i = 0; i < ARRAY_SIZE(sa1111_devices); i++)
if (has_devs & (1 << i))
if (sa1111_devices[i].devid & has_devs)
sa1111_init_one_child(sachip, mem, &sa1111_devices[i]);
return 0;
@ -824,7 +815,10 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
static int sa1111_remove_one(struct device *dev, void *data)
{
device_unregister(dev);
struct sa1111_dev *sadev = SA1111_DEV(dev);
device_del(&sadev->dev);
release_resource(&sadev->res);
put_device(&sadev->dev);
return 0;
}
@ -846,6 +840,7 @@ static void __sa1111_remove(struct sa1111 *sachip)
if (sachip->irq != NO_IRQ) {
irq_set_chained_handler(sachip->irq, NULL);
irq_set_handler_data(sachip->irq, NULL);
irq_free_descs(sachip->irq_base, SA1111_IRQ_NR);
release_mem_region(sachip->phys + SA1111_INTC, 512);
}
@ -904,6 +899,9 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
save->skpwm0 = sa1111_readl(base + SA1111_SKPWM0);
save->skpwm1 = sa1111_readl(base + SA1111_SKPWM1);
sa1111_writel(0, sachip->base + SA1111_SKPWM0);
sa1111_writel(0, sachip->base + SA1111_SKPWM1);
base = sachip->base + SA1111_INTC;
save->intpol0 = sa1111_readl(base + SA1111_INTPOL0);
save->intpol1 = sa1111_readl(base + SA1111_INTPOL1);
@ -919,13 +917,15 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
*/
val = sa1111_readl(sachip->base + SA1111_SKCR);
sa1111_writel(val | SKCR_SLEEP, sachip->base + SA1111_SKCR);
sa1111_writel(0, sachip->base + SA1111_SKPWM0);
sa1111_writel(0, sachip->base + SA1111_SKPWM1);
clk_disable(sachip->clk);
spin_unlock_irqrestore(&sachip->lock, flags);
#ifdef CONFIG_ARCH_SA1100
sa1110_mb_disable();
#endif
return 0;
}
@ -966,6 +966,11 @@ static int sa1111_resume(struct platform_device *dev)
*/
sa1111_wake(sachip);
#ifdef CONFIG_ARCH_SA1100
/* Enable the memory bus request/grant signals */
sa1110_mb_enable();
#endif
/*
* Only lock for write ops. Also, sa1111_wake must be called with
* released spinlock!
@ -1053,6 +1058,7 @@ static struct platform_driver sa1111_device_driver = {
.resume = sa1111_resume,
.driver = {
.name = "sa1111",
.owner = THIS_MODULE,
},
};
@ -1238,16 +1244,23 @@ EXPORT_SYMBOL(sa1111_set_sleep_io);
* sa1111_enable_device - enable an on-chip SA1111 function block
* @sadev: SA1111 function block device to enable
*/
void sa1111_enable_device(struct sa1111_dev *sadev)
int sa1111_enable_device(struct sa1111_dev *sadev)
{
struct sa1111 *sachip = sa1111_chip_driver(sadev);
unsigned long flags;
unsigned int val;
int ret = 0;
spin_lock_irqsave(&sachip->lock, flags);
val = sa1111_readl(sachip->base + SA1111_SKPCR);
sa1111_writel(val | sadev->skpcr_mask, sachip->base + SA1111_SKPCR);
spin_unlock_irqrestore(&sachip->lock, flags);
if (sachip->pdata && sachip->pdata->enable)
ret = sachip->pdata->enable(sachip->pdata->data, sadev->devid);
if (ret == 0) {
spin_lock_irqsave(&sachip->lock, flags);
val = sa1111_readl(sachip->base + SA1111_SKPCR);
sa1111_writel(val | sadev->skpcr_mask, sachip->base + SA1111_SKPCR);
spin_unlock_irqrestore(&sachip->lock, flags);
}
return ret;
}
EXPORT_SYMBOL(sa1111_enable_device);
@ -1265,6 +1278,9 @@ void sa1111_disable_device(struct sa1111_dev *sadev)
val = sa1111_readl(sachip->base + SA1111_SKPCR);
sa1111_writel(val & ~sadev->skpcr_mask, sachip->base + SA1111_SKPCR);
spin_unlock_irqrestore(&sachip->lock, flags);
if (sachip->pdata && sachip->pdata->disable)
sachip->pdata->disable(sachip->pdata->data, sadev->devid);
}
EXPORT_SYMBOL(sa1111_disable_device);
@ -1279,7 +1295,7 @@ static int sa1111_match(struct device *_dev, struct device_driver *_drv)
struct sa1111_dev *dev = SA1111_DEV(_dev);
struct sa1111_driver *drv = SA1111_DRV(_drv);
return dev->devid == drv->devid;
return dev->devid & drv->devid;
}
static int sa1111_bus_suspend(struct device *dev, pm_message_t state)
@ -1304,6 +1320,14 @@ static int sa1111_bus_resume(struct device *dev)
return ret;
}
static void sa1111_bus_shutdown(struct device *dev)
{
struct sa1111_driver *drv = SA1111_DRV(dev->driver);
if (drv && drv->shutdown)
drv->shutdown(SA1111_DEV(dev));
}
static int sa1111_bus_probe(struct device *dev)
{
struct sa1111_dev *sadev = SA1111_DEV(dev);
@ -1333,6 +1357,7 @@ struct bus_type sa1111_bus_type = {
.remove = sa1111_bus_remove,
.suspend = sa1111_bus_suspend,
.resume = sa1111_bus_resume,
.shutdown = sa1111_bus_shutdown,
};
EXPORT_SYMBOL(sa1111_bus_type);
@ -1349,9 +1374,70 @@ void sa1111_driver_unregister(struct sa1111_driver *driver)
}
EXPORT_SYMBOL(sa1111_driver_unregister);
#ifdef CONFIG_DMABOUNCE
/*
* According to the "Intel StrongARM SA-1111 Microprocessor Companion
* Chip Specification Update" (June 2000), erratum #7, there is a
* significant bug in the SA1111 SDRAM shared memory controller. If
* an access to a region of memory above 1MB relative to the bank base,
* it is important that address bit 10 _NOT_ be asserted. Depending
* on the configuration of the RAM, bit 10 may correspond to one
* of several different (processor-relative) address bits.
*
* This routine only identifies whether or not a given DMA address
* is susceptible to the bug.
*
* This should only get called for sa1111_device types due to the
* way we configure our device dma_masks.
*/
static int sa1111_needs_bounce(struct device *dev, dma_addr_t addr, size_t size)
{
/*
* Section 4.6 of the "Intel StrongARM SA-1111 Development Module
* User's Guide" mentions that jumpers R51 and R52 control the
* target of SA-1111 DMA (either SDRAM bank 0 on Assabet, or
* SDRAM bank 1 on Neponset). The default configuration selects
* Assabet, so any address in bank 1 is necessarily invalid.
*/
return (machine_is_assabet() || machine_is_pfs168()) &&
(addr >= 0xc8000000 || (addr + size) >= 0xc8000000);
}
static int sa1111_notifier_call(struct notifier_block *n, unsigned long action,
void *data)
{
struct sa1111_dev *dev = SA1111_DEV(data);
switch (action) {
case BUS_NOTIFY_ADD_DEVICE:
if (dev->dev.dma_mask && dev->dma_mask < 0xffffffffUL) {
int ret = dmabounce_register_dev(&dev->dev, 1024, 4096,
sa1111_needs_bounce);
if (ret)
dev_err(&dev->dev, "failed to register with dmabounce: %d\n", ret);
}
break;
case BUS_NOTIFY_DEL_DEVICE:
if (dev->dev.dma_mask && dev->dma_mask < 0xffffffffUL)
dmabounce_unregister_dev(&dev->dev);
break;
}
return NOTIFY_OK;
}
static struct notifier_block sa1111_bus_notifier = {
.notifier_call = sa1111_notifier_call,
};
#endif
static int __init sa1111_init(void)
{
int ret = bus_register(&sa1111_bus_type);
#ifdef CONFIG_DMABOUNCE
if (ret == 0)
bus_register_notifier(&sa1111_bus_type, &sa1111_bus_notifier);
#endif
if (ret == 0)
platform_driver_register(&sa1111_device_driver);
return ret;
@ -1360,6 +1446,9 @@ static int __init sa1111_init(void)
static void __exit sa1111_exit(void)
{
platform_driver_unregister(&sa1111_device_driver);
#ifdef CONFIG_DMABOUNCE
bus_unregister_notifier(&sa1111_bus_type, &sa1111_bus_notifier);
#endif
bus_unregister(&sa1111_bus_type);
}

156
arch/arm/include/asm/hardware/sa1111.h
View File

@ -132,33 +132,9 @@
#define SKPCR_DCLKEN (1<<7)
#define SKPCR_PWMCLKEN (1<<8)
/*
* USB Host controller
*/
/* USB Host controller */
#define SA1111_USB 0x0400
/*
* Offsets from SA1111_USB_BASE
*/
#define SA1111_USB_STATUS 0x0118
#define SA1111_USB_RESET 0x011c
#define SA1111_USB_IRQTEST 0x0120
#define USB_RESET_FORCEIFRESET (1 << 0)
#define USB_RESET_FORCEHCRESET (1 << 1)
#define USB_RESET_CLKGENRESET (1 << 2)
#define USB_RESET_SIMSCALEDOWN (1 << 3)
#define USB_RESET_USBINTTEST (1 << 4)
#define USB_RESET_SLEEPSTBYEN (1 << 5)
#define USB_RESET_PWRSENSELOW (1 << 6)
#define USB_RESET_PWRCTRLLOW (1 << 7)
#define USB_STATUS_IRQHCIRMTWKUP (1 << 7)
#define USB_STATUS_IRQHCIBUFFACC (1 << 8)
#define USB_STATUS_NIRQHCIM (1 << 9)
#define USB_STATUS_NHCIMFCLR (1 << 10)
#define USB_STATUS_USBPWRSENSE (1 << 11)
/*
* Serial Audio Controller
*
@ -327,22 +303,6 @@
* PC_SSR GPIO Block C Sleep State
*/
#define _PA_DDR _SA1111( 0x1000 )
#define _PA_DRR _SA1111( 0x1004 )
#define _PA_DWR _SA1111( 0x1004 )
#define _PA_SDR _SA1111( 0x1008 )
#define _PA_SSR _SA1111( 0x100c )
#define _PB_DDR _SA1111( 0x1010 )
#define _PB_DRR _SA1111( 0x1014 )
#define _PB_DWR _SA1111( 0x1014 )
#define _PB_SDR _SA1111( 0x1018 )
#define _PB_SSR _SA1111( 0x101c )
#define _PC_DDR _SA1111( 0x1020 )
#define _PC_DRR _SA1111( 0x1024 )
#define _PC_DWR _SA1111( 0x1024 )
#define _PC_SDR _SA1111( 0x1028 )
#define _PC_SSR _SA1111( 0x102c )
#define SA1111_GPIO 0x1000
#define SA1111_GPIO_PADDR (0x000)
@ -425,106 +385,30 @@
#define SA1111_WAKEPOL0 0x0034
#define SA1111_WAKEPOL1 0x0038
/*
* PS/2 Trackpad and Mouse Interfaces
*
* Registers
* PS2CR Control Register
* PS2STAT Status Register
* PS2DATA Transmit/Receive Data register
* PS2CLKDIV Clock Division Register
* PS2PRECNT Clock Precount Register
* PS2TEST1 Test register 1
* PS2TEST2 Test register 2
* PS2TEST3 Test register 3
* PS2TEST4 Test register 4
*/
/* PS/2 Trackpad and Mouse Interfaces */
#define SA1111_KBD 0x0a00
#define SA1111_MSE 0x0c00
/*
* These are offsets from the above bases.
*/
#define SA1111_PS2CR 0x0000
#define SA1111_PS2STAT 0x0004
#define SA1111_PS2DATA 0x0008
#define SA1111_PS2CLKDIV 0x000c
#define SA1111_PS2PRECNT 0x0010
/* PCMCIA Interface */
#define SA1111_PCMCIA 0x1600
#define PS2CR_ENA 0x08
#define PS2CR_FKD 0x02
#define PS2CR_FKC 0x01
#define PS2STAT_STP 0x0100
#define PS2STAT_TXE 0x0080
#define PS2STAT_TXB 0x0040
#define PS2STAT_RXF 0x0020
#define PS2STAT_RXB 0x0010
#define PS2STAT_ENA 0x0008
#define PS2STAT_RXP 0x0004
#define PS2STAT_KBD 0x0002
#define PS2STAT_KBC 0x0001
/*
* PCMCIA Interface
*
* Registers
* PCSR Status Register
* PCCR Control Register
* PCSSR Sleep State Register
*/
#define SA1111_PCMCIA 0x1600
/*
* These are offsets from the above base.
*/
#define SA1111_PCCR 0x0000
#define SA1111_PCSSR 0x0004
#define SA1111_PCSR 0x0008
#define PCSR_S0_READY (1<<0)
#define PCSR_S1_READY (1<<1)
#define PCSR_S0_DETECT (1<<2)
#define PCSR_S1_DETECT (1<<3)
#define PCSR_S0_VS1 (1<<4)
#define PCSR_S0_VS2 (1<<5)
#define PCSR_S1_VS1 (1<<6)
#define PCSR_S1_VS2 (1<<7)
#define PCSR_S0_WP (1<<8)
#define PCSR_S1_WP (1<<9)
#define PCSR_S0_BVD1 (1<<10)
#define PCSR_S0_BVD2 (1<<11)
#define PCSR_S1_BVD1 (1<<12)
#define PCSR_S1_BVD2 (1<<13)
#define PCCR_S0_RST (1<<0)
#define PCCR_S1_RST (1<<1)
#define PCCR_S0_FLT (1<<2)
#define PCCR_S1_FLT (1<<3)
#define PCCR_S0_PWAITEN (1<<4)
#define PCCR_S1_PWAITEN (1<<5)
#define PCCR_S0_PSE (1<<6)
#define PCCR_S1_PSE (1<<7)
#define PCSSR_S0_SLEEP (1<<0)
#define PCSSR_S1_SLEEP (1<<1)
extern struct bus_type sa1111_bus_type;
#define SA1111_DEVID_SBI 0
#define SA1111_DEVID_SK 1
#define SA1111_DEVID_USB 2
#define SA1111_DEVID_SAC 3
#define SA1111_DEVID_SSP 4
#define SA1111_DEVID_PS2 5
#define SA1111_DEVID_GPIO 6
#define SA1111_DEVID_INT 7
#define SA1111_DEVID_PCMCIA 8
#define SA1111_DEVID_SBI (1 << 0)
#define SA1111_DEVID_SK (1 << 1)
#define SA1111_DEVID_USB (1 << 2)
#define SA1111_DEVID_SAC (1 << 3)
#define SA1111_DEVID_SSP (1 << 4)
#define SA1111_DEVID_PS2 (3 << 5)
#define SA1111_DEVID_PS2_KBD (1 << 5)
#define SA1111_DEVID_PS2_MSE (1 << 6)
#define SA1111_DEVID_GPIO (1 << 7)
#define SA1111_DEVID_INT (1 << 8)
#define SA1111_DEVID_PCMCIA (1 << 9)
struct sa1111_dev {
struct device dev;
@ -548,6 +432,7 @@ struct sa1111_driver {
int (*remove)(struct sa1111_dev *);
int (*suspend)(struct sa1111_dev *, pm_message_t);
int (*resume)(struct sa1111_dev *);
void (*shutdown)(struct sa1111_dev *);
};
#define SA1111_DRV(_d) container_of((_d), struct sa1111_driver, drv)
@ -555,9 +440,10 @@ struct sa1111_driver {
#define SA1111_DRIVER_NAME(_sadev) ((_sadev)->dev.driver->name)
/*
* These frob the SKPCR register.
* These frob the SKPCR register, and call platform specific
* enable/disable functions.
*/
void sa1111_enable_device(struct sa1111_dev *);
int sa1111_enable_device(struct sa1111_dev *);
void sa1111_disable_device(struct sa1111_dev *);
unsigned int sa1111_pll_clock(struct sa1111_dev *);
@ -580,6 +466,10 @@ void sa1111_set_sleep_io(struct sa1111_dev *sadev, unsigned int bits, unsigned i
struct sa1111_platform_data {
int irq_base; /* base for cascaded on-chip IRQs */
unsigned disable_devs;
void *data;
int (*enable)(void *, unsigned);
void (*disable)(void *, unsigned);
};
#endif /* _ASM_ARCH_SA1111 */

1
arch/arm/mach-pxa/lubbock.c
View File

@ -223,6 +223,7 @@ static struct resource sa1111_resources[] = {
static struct sa1111_platform_data sa1111_info = {
.irq_base = LUBBOCK_SA1111_IRQ_BASE,
.disable_devs = SA1111_DEVID_SAC,
};
static struct platform_device sa1111_device = {

15
arch/arm/mach-sa1100/assabet.c
View File

@ -425,21 +425,8 @@ static void __init assabet_map_io(void)
*/
Ser1SDCR0 |= SDCR0_SUS;
if (machine_has_neponset()) {
#ifdef CONFIG_ASSABET_NEPONSET
extern void neponset_map_io(void);
/*
* We map Neponset registers even if it isn't present since
* many drivers will try to probe their stuff (and fail).
* This is still more friendly than a kernel paging request
* crash.
*/
neponset_map_io();
#endif
} else {
if (!machine_has_neponset())
sa1100_register_uart_fns(&assabet_port_fns);
}
/*
* When Neponset is attached, the first UART should be

21
arch/arm/mach-sa1100/badge4.c
View File

@ -43,8 +43,24 @@ static struct resource sa1111_resources[] = {
[1] = DEFINE_RES_IRQ(BADGE4_IRQ_GPIO_SA1111),
};
static int badge4_sa1111_enable(void *data, unsigned devid)
{
if (devid == SA1111_DEVID_USB)
badge4_set_5V(BADGE4_5V_USB, 1);
return 0;
}
static void badge4_sa1111_disable(void *data, unsigned devid)
{
if (devid == SA1111_DEVID_USB)
badge4_set_5V(BADGE4_5V_USB, 0);
}
static struct sa1111_platform_data sa1111_info = {
.irq_base = IRQ_BOARD_END,
.disable_devs = SA1111_DEVID_PS2_MSE,
.enable = badge4_sa1111_enable,
.disable = badge4_sa1111_disable,
};
static u64 sa1111_dmamask = 0xffffffffUL;
@ -258,11 +274,6 @@ static struct map_desc badge4_io_desc[] __initdata = {
.pfn = __phys_to_pfn(0x10000000),
.length = 0x00100000,
.type = MT_DEVICE
}, { /* SA-1111 */
.virtual = 0xf4000000,
.pfn = __phys_to_pfn(0x48000000),
.length = 0x00100000,
.type = MT_DEVICE
}
};

6
arch/arm/mach-sa1100/jornada720.c
View File

@ -195,6 +195,7 @@ static struct resource sa1111_resources[] = {
static struct sa1111_platform_data sa1111_info = {
.irq_base = IRQ_BOARD_END,
.disable_devs = SA1111_DEVID_PS2_MSE,
};
static u64 sa1111_dmamask = 0xffffffffUL;
@ -268,11 +269,6 @@ static struct map_desc jornada720_io_desc[] __initdata = {
.pfn = __phys_to_pfn(EPSONFBSTART),
.length = EPSONFBLEN,
.type = MT_DEVICE
}, { /* SA-1111 */
.virtual = 0xf4000000,
.pfn = __phys_to_pfn(SA1111REGSTART),
.length = SA1111REGLEN,
.type = MT_DEVICE
}
};

15
arch/arm/mach-sa1100/neponset.c
View File

@ -229,6 +229,7 @@ static struct irq_chip nochip = {
static struct sa1111_platform_data sa1111_info = {
.irq_base = IRQ_BOARD_END,
.disable_devs = SA1111_DEVID_PS2_MSE,
};
static int __devinit neponset_probe(struct platform_device *dev)
@ -432,17 +433,3 @@ static int __init neponset_init(void)
}
subsys_initcall(neponset_init);
static struct map_desc neponset_io_desc[] __initdata = {
{ /* SA-1111 */
.virtual = 0xf4000000,
.pfn = __phys_to_pfn(0x40000000),
.length = SZ_1M,
.type = MT_DEVICE
}
};
void __init neponset_map_io(void)
{
iotable_init(neponset_io_desc, ARRAY_SIZE(neponset_io_desc));
}

59
drivers/input/serio/sa1111ps2.c
View File

@ -24,6 +24,26 @@
#include <asm/hardware/sa1111.h>
#define PS2CR 0x0000
#define PS2STAT 0x0004
#define PS2DATA 0x0008
#define PS2CLKDIV 0x000c
#define PS2PRECNT 0x0010
#define PS2CR_ENA 0x08
#define PS2CR_FKD 0x02
#define PS2CR_FKC 0x01
#define PS2STAT_STP 0x0100
#define PS2STAT_TXE 0x0080
#define PS2STAT_TXB 0x0040
#define PS2STAT_RXF 0x0020
#define PS2STAT_RXB 0x0010
#define PS2STAT_ENA 0x0008
#define PS2STAT_RXP 0x0004
#define PS2STAT_KBD 0x0002
#define PS2STAT_KBC 0x0001
struct ps2if {
struct serio *io;
struct sa1111_dev *dev;
@ -45,22 +65,22 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id)
struct ps2if *ps2if = dev_id;
unsigned int scancode, flag, status;
status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
status = sa1111_readl(ps2if->base + PS2STAT);
while (status & PS2STAT_RXF) {
if (status & PS2STAT_STP)
sa1111_writel(PS2STAT_STP, ps2if->base + SA1111_PS2STAT);
sa1111_writel(PS2STAT_STP, ps2if->base + PS2STAT);
flag = (status & PS2STAT_STP ? SERIO_FRAME : 0) |
(status & PS2STAT_RXP ? 0 : SERIO_PARITY);
scancode = sa1111_readl(ps2if->base + SA1111_PS2DATA) & 0xff;
scancode = sa1111_readl(ps2if->base + PS2DATA) & 0xff;
if (hweight8(scancode) & 1)
flag ^= SERIO_PARITY;
serio_interrupt(ps2if->io, scancode, flag);
status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
status = sa1111_readl(ps2if->base + PS2STAT);
}
return IRQ_HANDLED;
@ -75,12 +95,12 @@ static irqreturn_t ps2_txint(int irq, void *dev_id)
unsigned int status;
spin_lock(&ps2if->lock);
status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
status = sa1111_readl(ps2if->base + PS2STAT);
if (ps2if->head == ps2if->tail) {
disable_irq_nosync(irq);
/* done */
} else if (status & PS2STAT_TXE) {
sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + SA1111_PS2DATA);
sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + PS2DATA);
ps2if->tail = (ps2if->tail + 1) & (sizeof(ps2if->buf) - 1);
}
spin_unlock(&ps2if->lock);
@ -103,8 +123,8 @@ static int ps2_write(struct serio *io, unsigned char val)
/*
* If the TX register is empty, we can go straight out.
*/
if (sa1111_readl(ps2if->base + SA1111_PS2STAT) & PS2STAT_TXE) {
sa1111_writel(val, ps2if->base + SA1111_PS2DATA);
if (sa1111_readl(ps2if->base + PS2STAT) & PS2STAT_TXE) {
sa1111_writel(val, ps2if->base + PS2DATA);
} else {
if (ps2if->head == ps2if->tail)
enable_irq(ps2if->dev->irq[1]);
@ -124,13 +144,16 @@ static int ps2_open(struct serio *io)
struct ps2if *ps2if = io->port_data;
int ret;
sa1111_enable_device(ps2if->dev);
ret = sa1111_enable_device(ps2if->dev);
if (ret)
return ret;
ret = request_irq(ps2if->dev->irq[0], ps2_rxint, 0,
SA1111_DRIVER_NAME(ps2if->dev), ps2if);
if (ret) {
printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
ps2if->dev->irq[0], ret);
sa1111_disable_device(ps2if->dev);
return ret;
}
@ -140,6 +163,7 @@ static int ps2_open(struct serio *io)
printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
ps2if->dev->irq[1], ret);
free_irq(ps2if->dev->irq[0], ps2if);
sa1111_disable_device(ps2if->dev);
return ret;
}
@ -147,7 +171,7 @@ static int ps2_open(struct serio *io)
enable_irq_wake(ps2if->dev->irq[0]);
sa1111_writel(PS2CR_ENA, ps2if->base + SA1111_PS2CR);
sa1111_writel(PS2CR_ENA, ps2if->base + PS2CR);
return 0;
}
@ -155,7 +179,7 @@ static void ps2_close(struct serio *io)
{
struct ps2if *ps2if = io->port_data;
sa1111_writel(0, ps2if->base + SA1111_PS2CR);
sa1111_writel(0, ps2if->base + PS2CR);
disable_irq_wake(ps2if->dev->irq[0]);
@ -175,7 +199,7 @@ static void __devinit ps2_clear_input(struct ps2if *ps2if)
int maxread = 100;
while (maxread--) {
if ((sa1111_readl(ps2if->base + SA1111_PS2DATA) & 0xff) == 0xff)
if ((sa1111_readl(ps2if->base + PS2DATA) & 0xff) == 0xff)
break;
}
}
@ -185,11 +209,11 @@ static unsigned int __devinit ps2_test_one(struct ps2if *ps2if,
{
unsigned int val;
sa1111_writel(PS2CR_ENA | mask, ps2if->base + SA1111_PS2CR);
sa1111_writel(PS2CR_ENA | mask, ps2if->base + PS2CR);
udelay(2);
val = sa1111_readl(ps2if->base + SA1111_PS2STAT);
val = sa1111_readl(ps2if->base + PS2STAT);
return val & (PS2STAT_KBC | PS2STAT_KBD);
}
@ -220,7 +244,7 @@ static int __devinit ps2_test(struct ps2if *ps2if)
ret = -ENODEV;
}
sa1111_writel(0, ps2if->base + SA1111_PS2CR);
sa1111_writel(0, ps2if->base + PS2CR);
return ret;
}
@ -274,8 +298,8 @@ static int __devinit ps2_probe(struct sa1111_dev *dev)
sa1111_enable_device(ps2if->dev);
/* Incoming clock is 8MHz */
sa1111_writel(0, ps2if->base + SA1111_PS2CLKDIV);
sa1111_writel(127, ps2if->base + SA1111_PS2PRECNT);
sa1111_writel(0, ps2if->base + PS2CLKDIV);
sa1111_writel(127, ps2if->base + PS2PRECNT);
/*
* Flush any pending input.
@ -330,6 +354,7 @@ static int __devexit ps2_remove(struct sa1111_dev *dev)
static struct sa1111_driver ps2_driver = {
.drv = {
.name = "sa1111-ps2",
.owner = THIS_MODULE,
},
.devid = SA1111_DEVID_PS2,
.probe = ps2_probe,

55
drivers/pcmcia/sa1111_generic.c
View File

@ -22,6 +22,40 @@
#include "sa1111_generic.h"
/*
* These are offsets from the above base.
*/
#define PCCR 0x0000
#define PCSSR 0x0004
#define PCSR 0x0008
#define PCSR_S0_READY (1<<0)
#define PCSR_S1_READY (1<<1)
#define PCSR_S0_DETECT (1<<2)
#define PCSR_S1_DETECT (1<<3)
#define PCSR_S0_VS1 (1<<4)
#define PCSR_S0_VS2 (1<<5)
#define PCSR_S1_VS1 (1<<6)
#define PCSR_S1_VS2 (1<<7)
#define PCSR_S0_WP (1<<8)
#define PCSR_S1_WP (1<<9)
#define PCSR_S0_BVD1 (1<<10)
#define PCSR_S0_BVD2 (1<<11)
#define PCSR_S1_BVD1 (1<<12)
#define PCSR_S1_BVD2 (1<<13)
#define PCCR_S0_RST (1<<0)
#define PCCR_S1_RST (1<<1)
#define PCCR_S0_FLT (1<<2)
#define PCCR_S1_FLT (1<<3)
#define PCCR_S0_PWAITEN (1<<4)
#define PCCR_S1_PWAITEN (1<<5)
#define PCCR_S0_PSE (1<<6)
#define PCCR_S1_PSE (1<<7)
#define PCSSR_S0_SLEEP (1<<0)
#define PCSSR_S1_SLEEP (1<<1)
#define IDX_IRQ_S0_READY_NINT (0)
#define IDX_IRQ_S0_CD_VALID (1)
#define IDX_IRQ_S0_BVD1_STSCHG (2)
@ -49,7 +83,7 @@ static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR);
unsigned long status = sa1111_readl(s->dev->mapbase + PCSR);
switch (skt->nr) {
case 0:
@ -105,10 +139,10 @@ int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_s
pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
local_irq_save(flags);
val = sa1111_readl(s->dev->mapbase + SA1111_PCCR);
val = sa1111_readl(s->dev->mapbase + PCCR);
val &= ~pccr_skt_mask;
val |= pccr_set_mask & pccr_skt_mask;
sa1111_writel(val, s->dev->mapbase + SA1111_PCCR);
sa1111_writel(val, s->dev->mapbase + PCCR);
local_irq_restore(flags);
return 0;
@ -163,12 +197,18 @@ int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
static int pcmcia_probe(struct sa1111_dev *dev)
{
void __iomem *base;
int ret;
ret = sa1111_enable_device(dev);
if (ret)
return ret;
dev_set_drvdata(&dev->dev, NULL);
if (!request_mem_region(dev->res.start, 512,
SA1111_DRIVER_NAME(dev)))
if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
sa1111_disable_device(dev);
return -EBUSY;
}
base = dev->mapbase;
@ -181,8 +221,8 @@ static int pcmcia_probe(struct sa1111_dev *dev)
/*
* Initialise the suspend state.
*/
sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR);
sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR);
sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
#ifdef CONFIG_SA1100_BADGE4
pcmcia_badge4_init(&dev->dev);
@ -212,6 +252,7 @@ static int __devexit pcmcia_remove(struct sa1111_dev *dev)
}
release_mem_region(dev->res.start, 512);
sa1111_disable_device(dev);
return 0;
}

313
drivers/usb/host/ohci-sa1111.c
View File

@ -16,87 +16,37 @@
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <mach/assabet.h>
#include <mach/badge4.h>
#include <asm/hardware/sa1111.h>
#ifndef CONFIG_SA1111
#error "This file is SA-1111 bus glue. CONFIG_SA1111 must be defined."
#endif
extern int usb_disabled(void);
#define USB_STATUS 0x0118
#define USB_RESET 0x011c
#define USB_IRQTEST 0x0120
/*-------------------------------------------------------------------------*/
#define USB_RESET_FORCEIFRESET (1 << 0)
#define USB_RESET_FORCEHCRESET (1 << 1)
#define USB_RESET_CLKGENRESET (1 << 2)
#define USB_RESET_SIMSCALEDOWN (1 << 3)
#define USB_RESET_USBINTTEST (1 << 4)
#define USB_RESET_SLEEPSTBYEN (1 << 5)
#define USB_RESET_PWRSENSELOW (1 << 6)
#define USB_RESET_PWRCTRLLOW (1 << 7)
static void sa1111_start_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst = 0;
printk(KERN_DEBUG "%s: starting SA-1111 OHCI USB Controller\n",
__FILE__);
#ifdef CONFIG_SA1100_BADGE4
if (machine_is_badge4()) {
badge4_set_5V(BADGE4_5V_USB, 1);
}
#endif
if (machine_is_xp860() ||
machine_has_neponset() ||
machine_is_pfs168() ||
machine_is_badge4())
usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW;
/*
* Configure the power sense and control lines. Place the USB
* host controller in reset.
*/
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + SA1111_USB_RESET);
/*
* Now, carefully enable the USB clock, and take
* the USB host controller out of reset.
*/
sa1111_enable_device(dev);
udelay(11);
sa1111_writel(usb_rst, dev->mapbase + SA1111_USB_RESET);
}
static void sa1111_stop_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst;
printk(KERN_DEBUG "%s: stopping SA-1111 OHCI USB Controller\n",
__FILE__);
/*
* Put the USB host controller into reset.
*/
usb_rst = sa1111_readl(dev->mapbase + SA1111_USB_RESET);
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + SA1111_USB_RESET);
/*
* Stop the USB clock.
*/
sa1111_disable_device(dev);
#ifdef CONFIG_SA1100_BADGE4
if (machine_is_badge4()) {
/* Disable power to the USB bus */
badge4_set_5V(BADGE4_5V_USB, 0);
}
#endif
}
/*-------------------------------------------------------------------------*/
#define USB_STATUS_IRQHCIRMTWKUP (1 << 7)
#define USB_STATUS_IRQHCIBUFFACC (1 << 8)
#define USB_STATUS_NIRQHCIM (1 << 9)
#define USB_STATUS_NHCIMFCLR (1 << 10)
#define USB_STATUS_USBPWRSENSE (1 << 11)
#if 0
static void dump_hci_status(struct usb_hcd *hcd, const char *label)
{
unsigned long status = sa1111_readl(hcd->regs + SA1111_USB_STATUS);
unsigned long status = sa1111_readl(hcd->regs + USB_STATUS);
dbg ("%s USB_STATUS = { %s%s%s%s%s}", label,
dbg("%s USB_STATUS = { %s%s%s%s%s}", label,
((status & USB_STATUS_IRQHCIRMTWKUP) ? "IRQHCIRMTWKUP " : ""),
((status & USB_STATUS_IRQHCIBUFFACC) ? "IRQHCIBUFFACC " : ""),
((status & USB_STATUS_NIRQHCIM) ? "" : "IRQHCIM "),
@ -105,98 +55,27 @@ static void dump_hci_status(struct usb_hcd *hcd, const char *label)
}
#endif
/*-------------------------------------------------------------------------*/
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
/**
* usb_hcd_sa1111_probe - initialize SA-1111-based HCDs
* Context: !in_interrupt()
*
* Allocates basic resources for this USB host controller, and
* then invokes the start() method for the HCD associated with it
* through the hotplug entry's driver_data.
*
* Store this function in the HCD's struct pci_driver as probe().
*/
int usb_hcd_sa1111_probe (const struct hc_driver *driver,
struct sa1111_dev *dev)
static int ohci_sa1111_reset(struct usb_hcd *hcd)
{
struct usb_hcd *hcd;
int retval;
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
hcd = usb_create_hcd (driver, &dev->dev, "sa1111");
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = dev->res.start;
hcd->rsrc_len = resource_size(&dev->res);
ohci_hcd_init(ohci);
return ohci_init(ohci);
}
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
dbg("request_mem_region failed");
retval = -EBUSY;
goto err1;
static int __devinit ohci_sa1111_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
ret = ohci_run(ohci);
if (ret < 0) {
ohci_err(ohci, "can't start\n");
ohci_stop(hcd);
}
hcd->regs = dev->mapbase;
sa1111_start_hc(dev);
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, dev->irq[1], 0);
if (retval == 0)
return retval;
sa1111_stop_hc(dev);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return retval;
return ret;
}
/* may be called without controller electrically present */
/* may be called with controller, bus, and devices active */
/**
* usb_hcd_sa1111_remove - shutdown processing for SA-1111-based HCDs
* @dev: USB Host Controller being removed
* Context: !in_interrupt()
*
* Reverses the effect of usb_hcd_sa1111_probe(), first invoking
* the HCD's stop() method. It is always called from a thread
* context, normally "rmmod", "apmd", or something similar.
*
*/
void usb_hcd_sa1111_remove (struct usb_hcd *hcd, struct sa1111_dev *dev)
{
usb_remove_hcd(hcd);
sa1111_stop_hc(dev);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
}
/*-------------------------------------------------------------------------*/
static int __devinit
ohci_sa1111_start (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
if ((ret = ohci_init(ohci)) < 0)
return ret;
if ((ret = ohci_run (ohci)) < 0) {
err ("can't start %s", hcd->self.bus_name);
ohci_stop (hcd);
return ret;
}
return 0;
}
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_sa1111_hc_driver = {
.description = hcd_name,
.product_desc = "SA-1111 OHCI",
@ -211,8 +90,10 @@ static const struct hc_driver ohci_sa1111_hc_driver = {
/*
* basic lifecycle operations
*/
.reset = ohci_sa1111_reset,
.start = ohci_sa1111_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
@ -238,33 +119,139 @@ static const struct hc_driver ohci_sa1111_hc_driver = {
.start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
static int ohci_hcd_sa1111_drv_probe(struct sa1111_dev *dev)
static int sa1111_start_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst = 0;
int ret;
dev_dbg(&dev->dev, "starting SA-1111 OHCI USB Controller\n");
if (machine_is_xp860() ||
machine_has_neponset() ||
machine_is_pfs168() ||
machine_is_badge4())
usb_rst = USB_RESET_PWRSENSELOW | USB_RESET_PWRCTRLLOW;
/*
* Configure the power sense and control lines. Place the USB
* host controller in reset.
*/
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + USB_RESET);
/*
* Now, carefully enable the USB clock, and take
* the USB host controller out of reset.
*/
ret = sa1111_enable_device(dev);
if (ret == 0) {
udelay(11);
sa1111_writel(usb_rst, dev->mapbase + USB_RESET);
}
return ret;
}
static void sa1111_stop_hc(struct sa1111_dev *dev)
{
unsigned int usb_rst;
dev_dbg(&dev->dev, "stopping SA-1111 OHCI USB Controller\n");
/*
* Put the USB host controller into reset.
*/
usb_rst = sa1111_readl(dev->mapbase + USB_RESET);
sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
dev->mapbase + USB_RESET);
/*
* Stop the USB clock.
*/
sa1111_disable_device(dev);
}
/**
* ohci_hcd_sa1111_probe - initialize SA-1111-based HCDs
*
* Allocates basic resources for this USB host controller, and
* then invokes the start() method for the HCD associated with it.
*/
static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev)
{
struct usb_hcd *hcd;
int ret;
if (usb_disabled())
return -ENODEV;
ret = usb_hcd_sa1111_probe(&ohci_sa1111_hc_driver, dev);
hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111");
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = dev->res.start;
hcd->rsrc_len = resource_size(&dev->res);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
dbg("request_mem_region failed");
ret = -EBUSY;
goto err1;
}
hcd->regs = dev->mapbase;
ret = sa1111_start_hc(dev);
if (ret)
goto err2;
ret = usb_add_hcd(hcd, dev->irq[1], 0);
if (ret == 0)
return ret;
sa1111_stop_hc(dev);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return ret;
}
static int ohci_hcd_sa1111_drv_remove(struct sa1111_dev *dev)
/**
* ohci_hcd_sa1111_remove - shutdown processing for SA-1111-based HCDs
* @dev: USB Host Controller being removed
*
* Reverses the effect of ohci_hcd_sa1111_probe(), first invoking
* the HCD's stop() method.
*/
static int ohci_hcd_sa1111_remove(struct sa1111_dev *dev)
{
struct usb_hcd *hcd = sa1111_get_drvdata(dev);
usb_hcd_sa1111_remove(hcd, dev);
usb_remove_hcd(hcd);
sa1111_stop_hc(dev);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
return 0;
}
static void ohci_hcd_sa1111_shutdown(struct sa1111_dev *dev)
{
struct usb_hcd *hcd = sa1111_get_drvdata(dev);
if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
hcd->driver->shutdown(hcd);
sa1111_stop_hc(dev);
}
}
static struct sa1111_driver ohci_hcd_sa1111_driver = {
.drv = {
.name = "sa1111-ohci",
.owner = THIS_MODULE,
},
.devid = SA1111_DEVID_USB,
.probe = ohci_hcd_sa1111_drv_probe,
.remove = ohci_hcd_sa1111_drv_remove,
.probe = ohci_hcd_sa1111_probe,
.remove = ohci_hcd_sa1111_remove,
.shutdown = ohci_hcd_sa1111_shutdown,
};