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@xxxxxxxxxxx>
Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
---
.../devicetree/bindings/watchdog/samsung-wdt.txt | 1 +
drivers/watchdog/s3c2410_wdt.c | 11 +++++++++++
2 files changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
index cfff375..8f3d96a 100644
--- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
@@ -9,6 +9,7 @@ Required properties:
(a) "samsung,s3c2410-wdt" for Exynos4 and previous SoCs
(b) "samsung,exynos5250-wdt" for Exynos5250
(c) "samsung,exynos5420-wdt" for Exynos5420
+ (c) "samsung,exynos7-wdt" for Exynos7
- reg : base physical address of the controller and length of memory mapped
region.
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 7c6ccd0..015256e 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);
--
1.7.9.5
--
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