watchdog: s3c2410_wdt: Add support for Watchdog device on Exynos7

Exynos7 SoC has a Watchdog for Atlas (A57) cores
This patch adds support for the Atlas watchdog.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 7c6ccd071baf..015256e496ae 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -155,6 +155,15 @@ static const struct s3c2410_wdt_variant drv_data_exynos5420 = {
         .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT,
 };
 
+static const struct s3c2410_wdt_variant drv_data_exynos7 = {
+        .disable_reg = EXYNOS5_WDT_DISABLE_REG_OFFSET,
+        .mask_reset_reg = EXYNOS5_WDT_MASK_RESET_REG_OFFSET,
+        .mask_bit = 0,
+        .rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
+        .rst_stat_bit = 23,     /* A57 WDTRESET */
+        .quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT,
+};
+
 static const struct of_device_id s3c2410_wdt_match[] = {
         { .compatible = "samsung,s3c2410-wdt",
           .data = &drv_data_s3c2410 },
@@ -162,6 +171,8 @@ static const struct of_device_id s3c2410_wdt_match[] = {
           .data = &drv_data_exynos5250 },
         { .compatible = "samsung,exynos5420-wdt",
           .data = &drv_data_exynos5420 },
+        { .compatible = "samsung,exynos7-wdt",
+          .data = &drv_data_exynos7 },
         {},
 };
 MODULE_DEVICE_TABLE(of, s3c2410_wdt_match);