[ARM] pxa/cm-x300: add rtc-v3020 device registration

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index 5295304731f6..cd39fa22ba2d 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -21,6 +21,7 @@
 #include <linux/gpio.h>
 #include <linux/dm9000.h>
 #include <linux/leds.h>
+#include <linux/rtc-v3020.h>
 
 #include <linux/i2c.h>
 #include <linux/i2c/pca953x.h>
@@ -46,6 +47,11 @@
 
 #define CM_X300_MMC2_IRQ        IRQ_GPIO(GPIO82_MMC2_IRQ)
 
+#define GPIO95_RTC_CS           (95)
+#define GPIO96_RTC_WR           (96)
+#define GPIO97_RTC_RD           (97)
+#define GPIO98_RTC_IO           (98)
+
 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
         /* LCD */
         GPIO54_LCD_LDD_0,
@@ -135,6 +141,12 @@ static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
         GPIO85_GPIO,                    /* MMC WP */
         GPIO99_GPIO,                    /* Ethernet IRQ */
 
+        /* RTC GPIOs */
+        GPIO95_GPIO,                    /* RTC CS */
+        GPIO96_GPIO,                    /* RTC WR */
+        GPIO97_GPIO,                    /* RTC RD */
+        GPIO98_GPIO,                    /* RTC IO */
+
         /* Standard I2C */
         GPIO21_I2C_SCL,
         GPIO22_I2C_SDA,
@@ -442,6 +454,31 @@ static void __init cm_x300_init_i2c(void)
 static inline void cm_x300_init_i2c(void) {}
 #endif
 
+#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
+struct v3020_platform_data cm_x300_v3020_pdata = {
+        .use_gpio       = 1,
+        .gpio_cs        = GPIO95_RTC_CS,
+        .gpio_wr        = GPIO96_RTC_WR,
+        .gpio_rd        = GPIO97_RTC_RD,
+        .gpio_io        = GPIO98_RTC_IO,
+};
+
+static struct platform_device cm_x300_rtc_device = {
+        .name           = "v3020",
+        .id             = -1,
+        .dev            = {
+                .platform_data = &cm_x300_v3020_pdata,
+        }
+};
+
+static void __init cm_x300_init_rtc(void)
+{
+        platform_device_register(&cm_x300_rtc_device);
+}
+#else
+static inline void cm_x300_init_rtc(void) {}
+#endif
+
 static void __init cm_x300_init(void)
 {
         /* board-processor specific GPIO initialization */
@@ -454,6 +491,7 @@ static void __init cm_x300_init(void)
         cm_x300_init_nand();
         cm_x300_init_leds();
         cm_x300_init_i2c();
+        cm_x300_init_rtc();
 }
 
 MACHINE_START(CM_X300, "CM-X300 module")