This patch adds support for handling OMAP7xx specific gpio_init
by providing platform device data and doing device registration.
Signed-off-by: Charulatha V <charu@xxxxxx>
---
arch/arm/mach-omap1/gpio7xx.c | 266 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 266 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-omap1/gpio7xx.c
diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c
new file mode 100644
index 0000000..56a482c
--- /dev/null
+++ b/arch/arm/mach-omap1/gpio7xx.c
@@ -0,0 +1,266 @@
+/*
+ * gpio7xx.c - OMAP7XX-specific gpio code
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ *
+ * Author:
+ * Charulatha V <charu@xxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+
+static struct omap_gpio_dev_attr omap7xx_gpio_attr = {
+ .gpio_bank_count = 7,
+ .gpio_bank_bits = 32,
+ .arm_gpio_ck_flag = false,
+};
+
+/*
+ * OMAP7XX MPU GPIO interface data
+ */
+static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
+ {
+ .start = OMAP1_MPUIO_VBASE,
+ .end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_MPUIO,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
+ .virtual_irq_start = IH_MPUIO_BASE,
+ .method = METHOD_MPUIO,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_mpu_gpio = {
+ .name = "omap-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &omap7xx_mpu_gpio_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
+ .resource = omap7xx_mpu_gpio_resources,
+};
+
+/*
+ * OMAP7XX GPIO1 interface data
+ */
+static struct __initdata resource omap7xx_gpio1_resources[] = {
+ {
+ .start = OMAP7XX_GPIO1_BASE,
+ .end = OMAP7XX_GPIO1_BASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_GPIO_BANK1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
+ .virtual_irq_start = IH_GPIO_BASE,
+ .method = METHOD_GPIO_7XX,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_gpio1 = {
+ .name = "omap-gpio",
+ .id = 1,
+ .dev = {
+ .platform_data = &omap7xx_gpio1_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
+ .resource = omap7xx_gpio1_resources,
+};
+
+/*
+ * OMAP7XX GPIO2 interface data
+ */
+static struct __initdata resource omap7xx_gpio2_resources[] = {
+ {
+ .start = OMAP7XX_GPIO2_BASE,
+ .end = OMAP7XX_GPIO2_BASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_GPIO_BANK2,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
+ .virtual_irq_start = IH_GPIO_BASE + 32,
+ .method = METHOD_GPIO_7XX,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_gpio2 = {
+ .name = "omap-gpio",
+ .id = 2,
+ .dev = {
+ .platform_data = &omap7xx_gpio2_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
+ .resource = omap7xx_gpio2_resources,
+};
+
+/*
+ * OMAP7XX GPIO3 interface data
+ */
+static struct __initdata resource omap7xx_gpio3_resources[] = {
+ {
+ .start = OMAP7XX_GPIO3_BASE,
+ .end = OMAP7XX_GPIO3_BASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_GPIO_BANK3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
+ .virtual_irq_start = IH_GPIO_BASE + 64,
+ .method = METHOD_GPIO_7XX,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_gpio3 = {
+ .name = "omap-gpio",
+ .id = 3,
+ .dev = {
+ .platform_data = &omap7xx_gpio3_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
+ .resource = omap7xx_gpio3_resources,
+};
+
+/*
+ * OMAP7XX GPIO4 interface data
+ */
+static struct __initdata resource omap7xx_gpio4_resources[] = {
+ {
+ .start = OMAP7XX_GPIO4_BASE,
+ .end = OMAP7XX_GPIO4_BASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_GPIO_BANK4,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
+ .virtual_irq_start = IH_GPIO_BASE + 96,
+ .method = METHOD_GPIO_7XX,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_gpio4 = {
+ .name = "omap-gpio",
+ .id = 4,
+ .dev = {
+ .platform_data = &omap7xx_gpio4_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
+ .resource = omap7xx_gpio4_resources,
+};
+
+/*
+ * OMAP7XX GPIO5 interface data
+ */
+static struct __initdata resource omap7xx_gpio5_resources[] = {
+ {
+ .start = OMAP7XX_GPIO5_BASE,
+ .end = OMAP7XX_GPIO5_BASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_GPIO_BANK5,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
+ .virtual_irq_start = IH_GPIO_BASE + 128,
+ .method = METHOD_GPIO_7XX,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_gpio5 = {
+ .name = "omap-gpio",
+ .id = 5,
+ .dev = {
+ .platform_data = &omap7xx_gpio5_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
+ .resource = omap7xx_gpio5_resources,
+};
+
+/*
+ * OMAP7XX GPIO6 interface data
+ */
+static struct __initdata resource omap7xx_gpio6_resources[] = {
+ {
+ .start = OMAP7XX_GPIO6_BASE,
+ .end = OMAP7XX_GPIO6_BASE + SZ_2K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_7XX_GPIO_BANK6,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
+ .virtual_irq_start = IH_GPIO_BASE + 160,
+ .method = METHOD_GPIO_7XX,
+ .gpio_attr = &omap7xx_gpio_attr,
+};
+
+static struct __initdata platform_device omap7xx_gpio6 = {
+ .name = "omap-gpio",
+ .id = 6,
+ .dev = {
+ .platform_data = &omap7xx_gpio6_config,
+ },
+ .num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
+ .resource = omap7xx_gpio6_resources,
+};
+
+static struct __initdata platform_device * omap7xx_gpio_dev[] = {
+ &omap7xx_mpu_gpio,
+ &omap7xx_gpio1,
+ &omap7xx_gpio2,
+ &omap7xx_gpio3,
+ &omap7xx_gpio4,
+ &omap7xx_gpio5,
+ &omap7xx_gpio6,
+};
+
+/*
+ * omap7xx_gpio_init needs to be done before
+ * machine_init functions access gpio APIs.
+ * Hence omap7xx_gpio_init is a postcore_initcall.
+ */
+static int __init omap7xx_gpio_init(void)
+{
+ int i;
+
+ if (!cpu_is_omap7xx())
+ return -EINVAL;
+
+ for (i = 0; i < sizeof(omap7xx_gpio_dev); i++)
+ platform_device_register(omap7xx_gpio_dev[i]);
+
+ return 0;
+}
+postcore_initcall(omap7xx_gpio_init);
--
1.6.3.3
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