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path: root/arch/arm/mach-omap1/gpio16xx.c
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Diffstat (limited to 'arch/arm/mach-omap1/gpio16xx.c')
-rw-r--r--arch/arm/mach-omap1/gpio16xx.c115
1 files changed, 86 insertions, 29 deletions
diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c
index 5dd0d4c82b2..6e6ec93dcbb 100644
--- a/arch/arm/mach-omap1/gpio16xx.c
+++ b/arch/arm/mach-omap1/gpio16xx.c
@@ -17,6 +17,9 @@
*/
#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
+
+#include <mach/irqs.h>
#define OMAP1610_GPIO1_BASE 0xfffbe400
#define OMAP1610_GPIO2_BASE 0xfffbec00
@@ -24,8 +27,11 @@
#define OMAP1610_GPIO4_BASE 0xfffbbc00
#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE
+/* smart idle, enable wakeup */
+#define SYSCONFIG_WORD 0x14
+
/* mpu gpio */
-static struct __initdata resource omap16xx_mpu_gpio_resources[] = {
+static struct resource omap16xx_mpu_gpio_resources[] = {
{
.start = OMAP1_MPUIO_VBASE,
.end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -37,14 +43,25 @@ static struct __initdata resource omap16xx_mpu_gpio_resources[] = {
},
};
-static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {
- .virtual_irq_start = IH_MPUIO_BASE,
- .bank_type = METHOD_MPUIO,
+static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
+ .revision = USHRT_MAX,
+ .direction = OMAP_MPUIO_IO_CNTL,
+ .datain = OMAP_MPUIO_INPUT_LATCH,
+ .dataout = OMAP_MPUIO_OUTPUT,
+ .irqstatus = OMAP_MPUIO_GPIO_INT,
+ .irqenable = OMAP_MPUIO_GPIO_MASKIT,
+ .irqenable_inv = true,
+ .irqctrl = OMAP_MPUIO_GPIO_INT_EDGE,
+};
+
+static struct omap_gpio_platform_data omap16xx_mpu_gpio_config = {
+ .is_mpuio = true,
.bank_width = 16,
.bank_stride = 1,
+ .regs = &omap16xx_mpuio_regs,
};
-static struct __initdata platform_device omap16xx_mpu_gpio = {
+static struct platform_device omap16xx_mpu_gpio = {
.name = "omap_gpio",
.id = 0,
.dev = {
@@ -55,7 +72,7 @@ static struct __initdata platform_device omap16xx_mpu_gpio = {
};
/* gpio1 */
-static struct __initdata resource omap16xx_gpio1_resources[] = {
+static struct resource omap16xx_gpio1_resources[] = {
{
.start = OMAP1610_GPIO1_BASE,
.end = OMAP1610_GPIO1_BASE + SZ_2K - 1,
@@ -67,13 +84,28 @@ static struct __initdata resource omap16xx_gpio1_resources[] = {
},
};
-static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {
- .virtual_irq_start = IH_GPIO_BASE,
- .bank_type = METHOD_GPIO_1610,
+static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
+ .revision = OMAP1610_GPIO_REVISION,
+ .direction = OMAP1610_GPIO_DIRECTION,
+ .set_dataout = OMAP1610_GPIO_SET_DATAOUT,
+ .clr_dataout = OMAP1610_GPIO_CLEAR_DATAOUT,
+ .datain = OMAP1610_GPIO_DATAIN,
+ .dataout = OMAP1610_GPIO_DATAOUT,
+ .irqstatus = OMAP1610_GPIO_IRQSTATUS1,
+ .irqenable = OMAP1610_GPIO_IRQENABLE1,
+ .set_irqenable = OMAP1610_GPIO_SET_IRQENABLE1,
+ .clr_irqenable = OMAP1610_GPIO_CLEAR_IRQENABLE1,
+ .wkup_en = OMAP1610_GPIO_WAKEUPENABLE,
+ .edgectrl1 = OMAP1610_GPIO_EDGE_CTRL1,
+ .edgectrl2 = OMAP1610_GPIO_EDGE_CTRL2,
+};
+
+static struct omap_gpio_platform_data omap16xx_gpio1_config = {
.bank_width = 16,
+ .regs = &omap16xx_gpio_regs,
};
-static struct __initdata platform_device omap16xx_gpio1 = {
+static struct platform_device omap16xx_gpio1 = {
.name = "omap_gpio",
.id = 1,
.dev = {
@@ -84,7 +116,7 @@ static struct __initdata platform_device omap16xx_gpio1 = {
};
/* gpio2 */
-static struct __initdata resource omap16xx_gpio2_resources[] = {
+static struct resource omap16xx_gpio2_resources[] = {
{
.start = OMAP1610_GPIO2_BASE,
.end = OMAP1610_GPIO2_BASE + SZ_2K - 1,
@@ -96,13 +128,12 @@ static struct __initdata resource omap16xx_gpio2_resources[] = {
},
};
-static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = {
- .virtual_irq_start = IH_GPIO_BASE + 16,
- .bank_type = METHOD_GPIO_1610,
+static struct omap_gpio_platform_data omap16xx_gpio2_config = {
.bank_width = 16,
+ .regs = &omap16xx_gpio_regs,
};
-static struct __initdata platform_device omap16xx_gpio2 = {
+static struct platform_device omap16xx_gpio2 = {
.name = "omap_gpio",
.id = 2,
.dev = {
@@ -113,7 +144,7 @@ static struct __initdata platform_device omap16xx_gpio2 = {
};
/* gpio3 */
-static struct __initdata resource omap16xx_gpio3_resources[] = {
+static struct resource omap16xx_gpio3_resources[] = {
{
.start = OMAP1610_GPIO3_BASE,
.end = OMAP1610_GPIO3_BASE + SZ_2K - 1,
@@ -125,13 +156,12 @@ static struct __initdata resource omap16xx_gpio3_resources[] = {
},
};
-static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = {
- .virtual_irq_start = IH_GPIO_BASE + 32,
- .bank_type = METHOD_GPIO_1610,
+static struct omap_gpio_platform_data omap16xx_gpio3_config = {
.bank_width = 16,
+ .regs = &omap16xx_gpio_regs,
};
-static struct __initdata platform_device omap16xx_gpio3 = {
+static struct platform_device omap16xx_gpio3 = {
.name = "omap_gpio",
.id = 3,
.dev = {
@@ -142,7 +172,7 @@ static struct __initdata platform_device omap16xx_gpio3 = {
};
/* gpio4 */
-static struct __initdata resource omap16xx_gpio4_resources[] = {
+static struct resource omap16xx_gpio4_resources[] = {
{
.start = OMAP1610_GPIO4_BASE,
.end = OMAP1610_GPIO4_BASE + SZ_2K - 1,
@@ -154,13 +184,12 @@ static struct __initdata resource omap16xx_gpio4_resources[] = {
},
};
-static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = {
- .virtual_irq_start = IH_GPIO_BASE + 48,
- .bank_type = METHOD_GPIO_1610,
+static struct omap_gpio_platform_data omap16xx_gpio4_config = {
.bank_width = 16,
+ .regs = &omap16xx_gpio_regs,
};
-static struct __initdata platform_device omap16xx_gpio4 = {
+static struct platform_device omap16xx_gpio4 = {
.name = "omap_gpio",
.id = 4,
.dev = {
@@ -170,7 +199,7 @@ static struct __initdata platform_device omap16xx_gpio4 = {
.resource = omap16xx_gpio4_resources,
};
-static struct __initdata platform_device * omap16xx_gpio_dev[] = {
+static struct platform_device *omap16xx_gpio_dev[] __initdata = {
&omap16xx_mpu_gpio,
&omap16xx_gpio1,
&omap16xx_gpio2,
@@ -186,14 +215,42 @@ static struct __initdata platform_device * omap16xx_gpio_dev[] = {
static int __init omap16xx_gpio_init(void)
{
int i;
+ void __iomem *base;
+ struct resource *res;
+ struct platform_device *pdev;
+ struct omap_gpio_platform_data *pdata;
if (!cpu_is_omap16xx())
return -EINVAL;
- for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++)
- platform_device_register(omap16xx_gpio_dev[i]);
+ /*
+ * Enable system clock for GPIO module.
+ * The CAM_CLK_CTRL *is* really the right place.
+ */
+ omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
+ ULPD_CAM_CLK_CTRL);
+
+ for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++) {
+ pdev = omap16xx_gpio_dev[i];
+ pdata = pdev->dev.platform_data;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (unlikely(!res)) {
+ dev_err(&pdev->dev, "Invalid mem resource.\n");
+ return -ENODEV;
+ }
- gpio_bank_count = ARRAY_SIZE(omap16xx_gpio_dev);
+ base = ioremap(res->start, resource_size(res));
+ if (unlikely(!base)) {
+ dev_err(&pdev->dev, "ioremap failed.\n");
+ return -ENOMEM;
+ }
+
+ __raw_writel(SYSCONFIG_WORD, base + OMAP1610_GPIO_SYSCONFIG);
+ iounmap(base);
+
+ platform_device_register(omap16xx_gpio_dev[i]);
+ }
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 18:03:26 +0000