led 驱动里面定义GPB5 地址不是很明白，我把宏定义都列出来了，怎么也算不出控制GPB5 口的地址，请高手指教
#define S3C2410_GPIO_BANKB (32*1)
#define S3C2410_GPIONO(bank,offset) ((bank) + (offset))
#define S3C2410_GPB5 S3C2410_GPIONO(S3C2410_GPIO_BANKB, 5)
说明S3C2410_GPB5=32*1+5
#define S3C24XX_VA_GPIO S3C2410_ADDR(0x00E00000)
#define S3C2410_ADDR(x) (0xF0000000 + (x))
说明S3C24XX_VA_GPIO=0xF0E00000
#define S3C2410_GPIO_BASE(pin) ((((pin) & ~31) >> 1) + S3C24XX_VA_GPIO)
void s3c2410_Gpio_setpin(unsigned int pin, unsigned int to)
{
void __iomem *base = S3C2410_GPIO_BASE(pin);
unsigned long offs = S3C2410_GPIO_OFFSET(pin);
unsigned long flags;
unsigned long dat;
local_irq_save(flags);
dat = __raw_readl(base + 0x04);
dat &= ~(1 << offs);
dat |= to << offs;
__raw_writel(dat, base + 0x04); //config the GPXDAT
local_irq_restore(flags);
}
s3c2410_gpio_setpin(GPB5, 1)
说明给1给S3C2410_GPIO_BASE(GPB5) 灯就灭 说明应该base=0x56000010 才对的，为什么会算出来 base-0xF0E00000请指点 谢谢[ 此帖被xie_px88在2009-05-20 22:03重新编辑 ]
