Davinci: gpio - use ioremap()

This patch modifies the gpio_base definition in davinci_soc_info to be a
physical address, which is then ioremap()ed by the gpio initialization
function.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

8 files changed, 18 insertions, 14 deletions

diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 83879f894a21..4f5727f0dd11 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -1201,7 +1201,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
         .intc_irq_num           = DA830_N_CP_INTC_IRQ,
         .timer_info             = &da830_timer_info,
         .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = IO_ADDRESS(DA8XX_GPIO_BASE),
+        .gpio_base              = DA8XX_GPIO_BASE,
         .gpio_num               = 128,
         .gpio_irq               = IRQ_DA8XX_GPIO0,
         .serial_dev             = &da8xx_serial_device,
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 2b6dd59d72f2..cb7f66300525 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -1086,7 +1086,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
         .intc_irq_num           = DA850_N_CP_INTC_IRQ,
         .timer_info             = &da850_timer_info,
         .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = IO_ADDRESS(DA8XX_GPIO_BASE),
+        .gpio_base              = DA8XX_GPIO_BASE,
         .gpio_num               = 144,
         .gpio_irq               = IRQ_DA8XX_GPIO0,
         .serial_dev             = &da8xx_serial_device,
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 0c62a68a90a3..277041dcd9a1 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -855,7 +855,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm355_timer_info,
         .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+        .gpio_base              = DAVINCI_GPIO_BASE,
         .gpio_num               = 104,
         .gpio_irq               = IRQ_DM355_GPIOBNK0,
         .serial_dev             = &dm355_serial_device,
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index ed7645088052..ecdbc676b4dd 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -1060,7 +1060,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm365_timer_info,
         .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+        .gpio_base              = DAVINCI_GPIO_BASE,
         .gpio_num               = 104,
         .gpio_irq               = IRQ_DM365_GPIO0,
         .gpio_unbanked          = 8,    /* really 16 ... skip muxed GPIOs */
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 7f36c22a2684..beb315c04b75 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -746,7 +746,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm644x_timer_info,
         .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+        .gpio_base              = DAVINCI_GPIO_BASE,
         .gpio_num               = 71,
         .gpio_irq               = IRQ_GPIOBNK0,
         .serial_dev             = &dm644x_serial_device,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 8dd0afee7593..95fc981e45af 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -830,7 +830,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
         .timer_info             = &dm646x_timer_info,
         .gpio_type              = GPIO_TYPE_DAVINCI,
-        .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+        .gpio_base              = DAVINCI_GPIO_BASE,
         .gpio_num               = 43, /* Only 33 usable */
         .gpio_irq               = IRQ_DM646X_GPIOBNK0,
         .serial_dev             = &dm646x_serial_device,
diff --git a/arch/arm/mach-davinci/gpio.c b/arch/arm/mach-davinci/gpio.c
index 2efb4468ebd0..bf0ff587e46a 100644
--- a/arch/arm/mach-davinci/gpio.c
+++ b/arch/arm/mach-davinci/gpio.c
@@ -37,22 +37,22 @@ struct davinci_gpio_regs {
         container_of(chip, struct davinci_gpio_controller, chip)
 
 static struct davinci_gpio_controller chips[DIV_ROUND_UP(DAVINCI_N_GPIO, 32)];
+static void __iomem *gpio_base;
 
 static struct davinci_gpio_regs __iomem __init *gpio2regs(unsigned gpio)
 {
         void __iomem *ptr;
-        void __iomem *base = davinci_soc_info.gpio_base;
 
         if (gpio < 32 * 1)
-                ptr = base + 0x10;
+                ptr = gpio_base + 0x10;
         else if (gpio < 32 * 2)
-                ptr = base + 0x38;
+                ptr = gpio_base + 0x38;
         else if (gpio < 32 * 3)
-                ptr = base + 0x60;
+                ptr = gpio_base + 0x60;
         else if (gpio < 32 * 4)
-                ptr = base + 0x88;
+                ptr = gpio_base + 0x88;
         else if (gpio < 32 * 5)
-                ptr = base + 0xb0;
+                ptr = gpio_base + 0xb0;
         else
                 ptr = NULL;
         return ptr;
@@ -157,6 +157,10 @@ static int __init davinci_gpio_setup(void)
         if (WARN_ON(DAVINCI_N_GPIO < ngpio))
                 ngpio = DAVINCI_N_GPIO;
 
+        gpio_base = ioremap(soc_info->gpio_base, SZ_4K);
+        if (WARN_ON(!gpio_base))
+                return -ENOMEM;
+
         for (i = 0, base = 0; base < ngpio; i++, base += 32) {
                 chips[i].chip.label = "DaVinci";
 
@@ -445,7 +449,7 @@ done:
         /* BINTEN -- per-bank interrupt enable. genirq would also let these
          * bits be set/cleared dynamically.
          */
-        __raw_writel(binten, soc_info->gpio_base + 0x08);
+        __raw_writel(binten, 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 a58bd88ba02d..2dd2226507a7 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -60,7 +60,7 @@ struct davinci_soc_info {
         unsigned long                   intc_irq_num;
         struct davinci_timer_info       *timer_info;
         int                             gpio_type;
-        void __iomem                    *gpio_base;
+        u32                             gpio_base;
         unsigned                        gpio_num;
         unsigned                        gpio_irq;
         unsigned                        gpio_unbanked;