summaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-s3c64xx
diff options
context:
space:
mode:
authorMaurus Cuelenaere <mcuelenaere@gmail.com>2009-11-20 13:04:13 +0100
committerBen Dooks <ben-linux@fluff.org>2009-12-01 01:35:40 +0000
commit6a88e9838fdc9ede136e3bb76a5c19413bd6cddb (patch)
treed2cc683914b23841b6da2d17c041c2fe87f8f3e9 /arch/arm/plat-s3c64xx
parent23196a42a691012ac9710677f711bb6dca0a1cde (diff)
downloadblackbird-op-linux-6a88e9838fdc9ede136e3bb76a5c19413bd6cddb.tar.gz
blackbird-op-linux-6a88e9838fdc9ede136e3bb76a5c19413bd6cddb.zip
ARM: S3C64XX: add support for all group 0 external interrupts
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c64xx')
-rw-r--r--arch/arm/plat-s3c64xx/gpiolib.c12
-rw-r--r--arch/arm/plat-s3c64xx/irq-eint.c19
2 files changed, 26 insertions, 5 deletions
diff --git a/arch/arm/plat-s3c64xx/gpiolib.c b/arch/arm/plat-s3c64xx/gpiolib.c
index 92859290ea33..778560457277 100644
--- a/arch/arm/plat-s3c64xx/gpiolib.c
+++ b/arch/arm/plat-s3c64xx/gpiolib.c
@@ -213,6 +213,11 @@ static struct s3c_gpio_cfg gpio_4bit_cfg_eint0011 = {
.get_pull = s3c_gpio_getpull_updown,
};
+int s3c64xx_gpio2int_gpm(struct gpio_chip *chip, unsigned pin)
+{
+ return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
+}
+
static struct s3c_gpio_chip gpio_4bit[] = {
{
.base = S3C64XX_GPA_BASE,
@@ -269,10 +274,16 @@ static struct s3c_gpio_chip gpio_4bit[] = {
.base = S3C64XX_GPM(0),
.ngpio = S3C64XX_GPIO_M_NR,
.label = "GPM",
+ .to_irq = s3c64xx_gpio2int_gpm,
},
},
};
+int s3c64xx_gpio2int_gpl(struct gpio_chip *chip, unsigned pin)
+{
+ return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
+}
+
static struct s3c_gpio_chip gpio_4bit2[] = {
{
.base = S3C64XX_GPH_BASE + 0x4,
@@ -297,6 +308,7 @@ static struct s3c_gpio_chip gpio_4bit2[] = {
.base = S3C64XX_GPL(0),
.ngpio = S3C64XX_GPIO_L_NR,
.label = "GPL",
+ .to_irq = s3c64xx_gpio2int_gpl,
},
},
};
diff --git a/arch/arm/plat-s3c64xx/irq-eint.c b/arch/arm/plat-s3c64xx/irq-eint.c
index f81b7b818ba0..ebdf183a0911 100644
--- a/arch/arm/plat-s3c64xx/irq-eint.c
+++ b/arch/arm/plat-s3c64xx/irq-eint.c
@@ -65,7 +65,7 @@ static void s3c_irq_eint_maskack(unsigned int irq)
static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type)
{
int offs = eint_offset(irq);
- int pin;
+ int pin, pin_val;
int shift;
u32 ctrl, mask;
u32 newvalue = 0;
@@ -109,7 +109,10 @@ static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type)
return -1;
}
- shift = (offs / 2) * 4;
+ if (offs <= 15)
+ shift = (offs / 2) * 4;
+ else
+ shift = ((offs - 16) / 2) * 4;
mask = 0x7 << shift;
ctrl = __raw_readl(reg);
@@ -119,12 +122,18 @@ static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type)
/* set the GPIO pin appropriately */
- if (offs < 23)
+ if (offs < 16) {
pin = S3C64XX_GPN(offs);
- else
+ pin_val = S3C_GPIO_SFN(2);
+ } else if (offs < 23) {
+ pin = S3C64XX_GPL(offs + 8 - 16);
+ pin_val = S3C_GPIO_SFN(3);
+ } else {
pin = S3C64XX_GPM(offs - 23);
+ pin_val = S3C_GPIO_SFN(3);
+ }
- s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(2));
+ s3c_gpio_cfgpin(pin, pin_val);
return 0;
}
OpenPOWER on IntegriCloud