aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/plat-mxc/gpio.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-mxc/gpio.c')
-rw-r--r--arch/arm/plat-mxc/gpio.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/arch/arm/plat-mxc/gpio.c b/arch/arm/plat-mxc/gpio.c
index 7506d963be4..cfc4a8b43e6 100644
--- a/arch/arm/plat-mxc/gpio.c
+++ b/arch/arm/plat-mxc/gpio.c
@@ -29,6 +29,23 @@
static struct mxc_gpio_port *mxc_gpio_ports;
static int gpio_table_size;
+#define cpu_is_mx1_mx2() (cpu_is_mx1() || cpu_is_mx2())
+
+#define GPIO_DR (cpu_is_mx1_mx2() ? 0x1c : 0x00)
+#define GPIO_GDIR (cpu_is_mx1_mx2() ? 0x00 : 0x04)
+#define GPIO_PSR (cpu_is_mx1_mx2() ? 0x24 : 0x08)
+#define GPIO_ICR1 (cpu_is_mx1_mx2() ? 0x28 : 0x0C)
+#define GPIO_ICR2 (cpu_is_mx1_mx2() ? 0x2C : 0x10)
+#define GPIO_IMR (cpu_is_mx1_mx2() ? 0x30 : 0x14)
+#define GPIO_ISR (cpu_is_mx1_mx2() ? 0x34 : 0x18)
+#define GPIO_ISR (cpu_is_mx1_mx2() ? 0x34 : 0x18)
+
+#define GPIO_INT_LOW_LEV (cpu_is_mx1_mx2() ? 0x3 : 0x0)
+#define GPIO_INT_HIGH_LEV (cpu_is_mx1_mx2() ? 0x2 : 0x1)
+#define GPIO_INT_RISE_EDGE (cpu_is_mx1_mx2() ? 0x0 : 0x2)
+#define GPIO_INT_FALL_EDGE (cpu_is_mx1_mx2() ? 0x1 : 0x3)
+#define GPIO_INT_NONE 0x4
+
/* Note: This driver assumes 32 GPIOs are handled in one register */
static void _clear_gpio_irqstatus(struct mxc_gpio_port *port, u32 index)
@@ -162,7 +179,6 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
}
}
-#if defined(CONFIG_ARCH_MX3) || defined(CONFIG_ARCH_MX1)
/* MX1 and MX3 has one interrupt *per* gpio port */
static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
{
@@ -174,9 +190,7 @@ static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
mxc_gpio_irq_handler(port, irq_stat);
}
-#endif
-#ifdef CONFIG_ARCH_MX2
/* MX2 has one interrupt *for all* gpio ports */
static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
{
@@ -195,7 +209,6 @@ static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
mxc_gpio_irq_handler(&port[i], irq_stat);
}
}
-#endif
static struct irq_chip gpio_irq_chip = {
.ack = gpio_ack_irq,
@@ -284,17 +297,18 @@ int __init mxc_gpio_init(struct mxc_gpio_port *port, int cnt)
/* its a serious configuration bug when it fails */
BUG_ON( gpiochip_add(&port[i].chip) < 0 );
-#if defined(CONFIG_ARCH_MX3) || defined(CONFIG_ARCH_MX1)
- /* setup one handler for each entry */
- set_irq_chained_handler(port[i].irq, mx3_gpio_irq_handler);
- set_irq_data(port[i].irq, &port[i]);
-#endif
+ if (cpu_is_mx1() || cpu_is_mx3() || cpu_is_mx25()) {
+ /* setup one handler for each entry */
+ set_irq_chained_handler(port[i].irq, mx3_gpio_irq_handler);
+ set_irq_data(port[i].irq, &port[i]);
+ }
+ }
+
+ if (cpu_is_mx2()) {
+ /* setup one handler for all GPIO interrupts */
+ set_irq_chained_handler(port[0].irq, mx2_gpio_irq_handler);
+ set_irq_data(port[0].irq, port);
}
-#ifdef CONFIG_ARCH_MX2
- /* setup one handler for all GPIO interrupts */
- set_irq_chained_handler(port[0].irq, mx2_gpio_irq_handler);
- set_irq_data(port[0].irq, port);
-#endif
return 0;
}