OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

[ARM] 4957/1: Drop special macro SCOOP_REG in favour if ioread16/iowrite16. 

Make scoop driver use generic purpose io routines: ioread16
and iowrite16 instead of direct writing to memory.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Dmitry Baryshkov 2008-04-09 23:05:09 +01:00 committed by Russell King
parent 2f8c514933
commit c353faa4b2
1 changed files with 22 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
arch/arm/common/scoop.c
View File

@ -30,8 +30,6 @@
struct scoop_pcmcia_config *platform_scoop_config;
EXPORT_SYMBOL(platform_scoop_config);
#define SCOOP_REG(d,adr) (*(volatile __iomem unsigned short*)(d +(adr)))
struct scoop_dev {
void __iomem *base;
spinlock_t scoop_lock;
@ -44,13 +42,13 @@ void reset_scoop(struct device *dev)
{
struct scoop_dev *sdev = dev_get_drvdata(dev);
SCOOP_REG(sdev->base,SCOOP_MCR) = 0x0100; // 00
SCOOP_REG(sdev->base,SCOOP_CDR) = 0x0000; // 04
SCOOP_REG(sdev->base,SCOOP_CCR) = 0x0000; // 10
SCOOP_REG(sdev->base,SCOOP_IMR) = 0x0000; // 18
SCOOP_REG(sdev->base,SCOOP_IRM) = 0x00FF; // 14
SCOOP_REG(sdev->base,SCOOP_ISR) = 0x0000; // 1C
SCOOP_REG(sdev->base,SCOOP_IRM) = 0x0000;
iowrite16(0x0100, sdev->base + SCOOP_MCR); // 00
iowrite16(0x0000, sdev->base + SCOOP_CDR); // 04
iowrite16(0x0000, sdev->base + SCOOP_CCR); // 10
iowrite16(0x0000, sdev->base + SCOOP_IMR); // 18
iowrite16(0x00FF, sdev->base + SCOOP_IRM); // 14
iowrite16(0x0000, sdev->base + SCOOP_ISR); // 1C
iowrite16(0x0000, sdev->base + SCOOP_IRM);
}
unsigned short set_scoop_gpio(struct device *dev, unsigned short bit)
@ -60,8 +58,8 @@ unsigned short set_scoop_gpio(struct device *dev, unsigned short bit)
struct scoop_dev *sdev = dev_get_drvdata(dev);
spin_lock_irqsave(&sdev->scoop_lock, flag);
gpio_bit = SCOOP_REG(sdev->base, SCOOP_GPWR) | bit;
SCOOP_REG(sdev->base, SCOOP_GPWR) = gpio_bit;
gpio_bit = ioread16(sdev->base + SCOOP_GPWR) | bit;
iowrite16(gpio_bit, sdev->base + SCOOP_GPWR);
spin_unlock_irqrestore(&sdev->scoop_lock, flag);
return gpio_bit;
@ -74,8 +72,8 @@ unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit)
struct scoop_dev *sdev = dev_get_drvdata(dev);
spin_lock_irqsave(&sdev->scoop_lock, flag);
gpio_bit = SCOOP_REG(sdev->base, SCOOP_GPWR) & ~bit;
SCOOP_REG(sdev->base,SCOOP_GPWR) = gpio_bit;
gpio_bit = ioread16(sdev->base + SCOOP_GPWR) & ~bit;
iowrite16(gpio_bit, sdev->base + SCOOP_GPWR);
spin_unlock_irqrestore(&sdev->scoop_lock, flag);
return gpio_bit;
@ -87,13 +85,13 @@ EXPORT_SYMBOL(reset_scoop_gpio);
unsigned short read_scoop_reg(struct device *dev, unsigned short reg)
{
struct scoop_dev *sdev = dev_get_drvdata(dev);
return SCOOP_REG(sdev->base,reg);
return ioread16(sdev->base + reg);
}
void write_scoop_reg(struct device *dev, unsigned short reg, unsigned short data)
{
struct scoop_dev *sdev = dev_get_drvdata(dev);
SCOOP_REG(sdev->base,reg)=data;
iowrite16(data, sdev->base + reg);
}
EXPORT_SYMBOL(reset_scoop);
@ -104,9 +102,9 @@ static void check_scoop_reg(struct scoop_dev *sdev)
{
unsigned short mcr;
mcr = SCOOP_REG(sdev->base, SCOOP_MCR);
mcr = ioread16(sdev->base + SCOOP_MCR);
if ((mcr & 0x100) == 0)
SCOOP_REG(sdev->base, SCOOP_MCR) = 0x0101;
iowrite16(0x0101, sdev->base + SCOOP_MCR);
}
#ifdef CONFIG_PM
@ -115,8 +113,8 @@ static int scoop_suspend(struct platform_device *dev, pm_message_t state)
struct scoop_dev *sdev = platform_get_drvdata(dev);
check_scoop_reg(sdev);
sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
sdev->scoop_gpwr = ioread16(sdev->base + SCOOP_GPWR);
iowrite16((sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set, sdev->base + SCOOP_GPWR);
return 0;
}
@ -126,7 +124,7 @@ static int scoop_resume(struct platform_device *dev)
struct scoop_dev *sdev = platform_get_drvdata(dev);
check_scoop_reg(sdev);
SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
iowrite16(sdev->scoop_gpwr, sdev->base + SCOOP_GPWR);
return 0;
}
@ -162,11 +160,11 @@ static int __devinit scoop_probe(struct platform_device *pdev)
printk("Sharp Scoop Device found at 0x%08x -> 0x%8p\n",(unsigned int)mem->start, devptr->base);
SCOOP_REG(devptr->base, SCOOP_MCR) = 0x0140;
iowrite16(0x0140, devptr->base + SCOOP_MCR);
reset_scoop(&pdev->dev);
SCOOP_REG(devptr->base, SCOOP_CPR) = 0x0000;
SCOOP_REG(devptr->base, SCOOP_GPCR) = inf->io_dir & 0xffff;
SCOOP_REG(devptr->base, SCOOP_GPWR) = inf->io_out & 0xffff;
iowrite16(0x0000, devptr->base + SCOOP_CPR);
iowrite16(inf->io_dir & 0xffff, devptr->base + SCOOP_GPCR);
iowrite16(inf->io_out & 0xffff, devptr->base + SCOOP_GPWR);
devptr->suspend_clr = inf->suspend_clr;
devptr->suspend_set = inf->suspend_set;