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-rw-r--r--arch/arm/mach-davinci/dm355.c4
-rw-r--r--arch/arm/mach-davinci/dm644x.c4
-rw-r--r--arch/arm/mach-davinci/dm646x.c4
-rw-r--r--arch/arm/mach-davinci/gpio.c39
-rw-r--r--arch/arm/mach-davinci/include/mach/common.h3
-rw-r--r--arch/arm/mach-davinci/include/mach/gpio.h14
6 files changed, 37 insertions, 31 deletions
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 1b7c16cd2672..757def752010 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -13,6 +13,7 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/gpio.h>
#include <linux/spi/spi.h>
@@ -647,6 +648,9 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
.intc_irq_num = DAVINCI_N_AINTC_IRQ,
.timer_info = &dm355_timer_info,
.wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE),
+ .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE),
+ .gpio_num = 104,
+ .gpio_irq = IRQ_DM355_GPIOBNK0,
};
void __init dm355_init(void)
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index c66269264cca..cfd918e41e2d 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
+#include <linux/gpio.h>
#include <asm/mach/map.h>
@@ -590,6 +591,9 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
.intc_irq_num = DAVINCI_N_AINTC_IRQ,
.timer_info = &dm644x_timer_info,
.wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE),
+ .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE),
+ .gpio_num = 71,
+ .gpio_irq = IRQ_GPIOBNK0,
};
void __init dm644x_init(void)
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 83d67cf6935f..f980c2f95de4 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
+#include <linux/gpio.h>
#include <asm/mach/map.h>
@@ -569,6 +570,9 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
.intc_irq_num = DAVINCI_N_AINTC_IRQ,
.timer_info = &dm646x_timer_info,
.wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE),
+ .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE),
+ .gpio_num = 43, /* Only 33 usable */
+ .gpio_irq = IRQ_DM646X_GPIOBNK0,
};
void __init dm646x_init(void)
diff --git a/arch/arm/mach-davinci/gpio.c b/arch/arm/mach-davinci/gpio.c
index 40327b557d79..1b6532159c58 100644
--- a/arch/arm/mach-davinci/gpio.c
+++ b/arch/arm/mach-davinci/gpio.c
@@ -23,6 +23,7 @@
#include <mach/cputype.h>
#include <mach/irqs.h>
#include <mach/hardware.h>
+#include <mach/common.h>
#include <mach/gpio.h>
#include <asm/mach/irq.h>
@@ -37,8 +38,6 @@ struct davinci_gpio {
static struct davinci_gpio chips[DIV_ROUND_UP(DAVINCI_N_GPIO, 32)];
-static unsigned __initdata ngpio;
-
/* create a non-inlined version */
static struct gpio_controller __iomem * __init gpio2controller(unsigned gpio)
{
@@ -116,23 +115,16 @@ davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int __init davinci_gpio_setup(void)
{
int i, base;
+ unsigned ngpio;
+ struct davinci_soc_info *soc_info = &davinci_soc_info;
- /* The gpio banks conceptually expose a segmented bitmap,
+ /*
+ * The gpio banks conceptually expose a segmented bitmap,
* and "ngpio" is one more than the largest zero-based
* bit index that's valid.
*/
- if (cpu_is_davinci_dm355()) { /* or dm335() */
- ngpio = 104;
- } else if (cpu_is_davinci_dm644x()) { /* or dm337() */
- ngpio = 71;
- } else if (cpu_is_davinci_dm646x()) {
- /* NOTE: each bank has several "reserved" bits,
- * unusable as GPIOs. Only 33 of the GPIO numbers
- * are usable, and we're not rejecting the others.
- */
- ngpio = 43;
- } else {
- /* if cpu_is_davinci_dm643x() ngpio = 111 */
+ ngpio = soc_info->gpio_num;
+ if (ngpio == 0) {
pr_err("GPIO setup: how many GPIOs?\n");
return -EINVAL;
}
@@ -279,17 +271,15 @@ gpio_irq_handler(unsigned irq, struct irq_desc *desc)
static int __init davinci_gpio_irq_setup(void)
{
unsigned gpio, irq, bank;
- unsigned bank_irq;
struct clk *clk;
u32 binten = 0;
+ unsigned ngpio, bank_irq;
+ struct davinci_soc_info *soc_info = &davinci_soc_info;
+
+ ngpio = soc_info->gpio_num;
- if (cpu_is_davinci_dm355()) { /* or dm335() */
- bank_irq = IRQ_DM355_GPIOBNK0;
- } else if (cpu_is_davinci_dm644x()) {
- bank_irq = IRQ_GPIOBNK0;
- } else if (cpu_is_davinci_dm646x()) {
- bank_irq = IRQ_DM646X_GPIOBNK0;
- } else {
+ bank_irq = soc_info->gpio_irq;
+ if (bank_irq == 0) {
printk(KERN_ERR "Don't know first GPIO bank IRQ.\n");
return -EINVAL;
}
@@ -329,8 +319,7 @@ static int __init davinci_gpio_irq_setup(void)
/* BINTEN -- per-bank interrupt enable. genirq would also let these
* bits be set/cleared dynamically.
*/
- __raw_writel(binten, (void *__iomem)
- IO_ADDRESS(DAVINCI_GPIO_BASE + 0x08));
+ __raw_writel(binten, soc_info->gpio_base + 0x08);
printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0));
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index d63703826a60..06ff6d6e3678 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -58,6 +58,9 @@ struct davinci_soc_info {
unsigned long intc_irq_num;
struct davinci_timer_info *timer_info;
void __iomem *wdt_base;
+ void __iomem *gpio_base;
+ unsigned gpio_num;
+ unsigned gpio_irq;
};
extern struct davinci_soc_info davinci_soc_info;
diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h
index efe3281364e6..ae0745568316 100644
--- a/arch/arm/mach-davinci/include/mach/gpio.h
+++ b/arch/arm/mach-davinci/include/mach/gpio.h
@@ -17,6 +17,7 @@
#include <asm-generic/gpio.h>
#include <mach/irqs.h>
+#include <mach/common.h>
#define DAVINCI_GPIO_BASE 0x01C67000
@@ -67,15 +68,16 @@ static inline struct gpio_controller *__iomem
__gpio_to_controller(unsigned gpio)
{
void *__iomem ptr;
+ void __iomem *base = davinci_soc_info.gpio_base;
if (gpio < 32 * 1)
- ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x10);
+ ptr = base + 0x10;
else if (gpio < 32 * 2)
- ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x38);
+ ptr = base + 0x38;
else if (gpio < 32 * 3)
- ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x60);
+ ptr = base + 0x60;
else if (gpio < 32 * 4)
- ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x88);
+ ptr = base + 0x88;
else
ptr = NULL;
return ptr;
@@ -142,13 +144,13 @@ static inline int gpio_to_irq(unsigned gpio)
{
if (gpio >= DAVINCI_N_GPIO)
return -EINVAL;
- return DAVINCI_N_AINTC_IRQ + gpio;
+ return davinci_soc_info.intc_irq_num + gpio;
}
static inline int irq_to_gpio(unsigned irq)
{
/* caller guarantees gpio_to_irq() succeeded */
- return irq - DAVINCI_N_AINTC_IRQ;
+ return irq - davinci_soc_info.intc_irq_num;
}
#endif /* __DAVINCI_GPIO_H */