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path: root/drivers/watchdog/s3c2410_wdt.c
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Diffstat (limited to 'drivers/watchdog/s3c2410_wdt.c')
-rw-r--r--drivers/watchdog/s3c2410_wdt.c45
1 files changed, 40 insertions, 5 deletions
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 686cf544d0ae..30450e99e5e9 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -24,9 +24,9 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/of.h>
+#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
#include <linux/delay.h>
-#include <linux/soc/samsung/exynos-pmu.h>
#define S3C2410_WTCON 0x00
#define S3C2410_WTDAT 0x04
@@ -63,6 +63,10 @@
#define EXYNOS850_CLUSTER1_NONCPU_INT_EN 0x1644
#define EXYNOSAUTOV9_CLUSTER1_NONCPU_OUT 0x1520
#define EXYNOSAUTOV9_CLUSTER1_NONCPU_INT_EN 0x1544
+#define EXYNOSAUTOV920_CLUSTER0_NONCPU_OUT 0x1420
+#define EXYNOSAUTOV920_CLUSTER0_NONCPU_INT_EN 0x1444
+#define EXYNOSAUTOV920_CLUSTER1_NONCPU_OUT 0x1720
+#define EXYNOSAUTOV920_CLUSTER1_NONCPU_INT_EN 0x1744
#define EXYNOS850_CLUSTER0_WDTRESET_BIT 24
#define EXYNOS850_CLUSTER1_WDTRESET_BIT 23
@@ -303,6 +307,32 @@ static const struct s3c2410_wdt_variant drv_data_gs101_cl1 = {
QUIRK_HAS_DBGACK_BIT,
};
+static const struct s3c2410_wdt_variant drv_data_exynosautov920_cl0 = {
+ .mask_reset_reg = EXYNOSAUTOV920_CLUSTER0_NONCPU_INT_EN,
+ .mask_bit = 2,
+ .mask_reset_inv = true,
+ .rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
+ .rst_stat_bit = EXYNOSAUTOV9_CLUSTER0_WDTRESET_BIT,
+ .cnt_en_reg = EXYNOSAUTOV920_CLUSTER0_NONCPU_OUT,
+ .cnt_en_bit = 7,
+ .quirks = QUIRK_HAS_WTCLRINT_REG | QUIRK_HAS_PMU_MASK_RESET |
+ QUIRK_HAS_PMU_RST_STAT | QUIRK_HAS_PMU_CNT_EN |
+ QUIRK_HAS_DBGACK_BIT,
+};
+
+static const struct s3c2410_wdt_variant drv_data_exynosautov920_cl1 = {
+ .mask_reset_reg = EXYNOSAUTOV920_CLUSTER1_NONCPU_INT_EN,
+ .mask_bit = 2,
+ .mask_reset_inv = true,
+ .rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
+ .rst_stat_bit = EXYNOSAUTOV9_CLUSTER1_WDTRESET_BIT,
+ .cnt_en_reg = EXYNOSAUTOV920_CLUSTER1_NONCPU_OUT,
+ .cnt_en_bit = 7,
+ .quirks = QUIRK_HAS_WTCLRINT_REG | QUIRK_HAS_PMU_MASK_RESET |
+ QUIRK_HAS_PMU_RST_STAT | QUIRK_HAS_PMU_CNT_EN |
+ QUIRK_HAS_DBGACK_BIT,
+};
+
static const struct of_device_id s3c2410_wdt_match[] = {
{ .compatible = "google,gs101-wdt",
.data = &drv_data_gs101_cl0 },
@@ -320,6 +350,8 @@ static const struct of_device_id s3c2410_wdt_match[] = {
.data = &drv_data_exynos850_cl0 },
{ .compatible = "samsung,exynosautov9-wdt",
.data = &drv_data_exynosautov9_cl0 },
+ { .compatible = "samsung,exynosautov920-wdt",
+ .data = &drv_data_exynosautov920_cl0 },
{},
};
MODULE_DEVICE_TABLE(of, s3c2410_wdt_match);
@@ -643,7 +675,8 @@ s3c2410_get_wdt_drv_data(struct platform_device *pdev, struct s3c2410_wdt *wdt)
/* Choose Exynos850/ExynosAutov9 driver data w.r.t. cluster index */
if (variant == &drv_data_exynos850_cl0 ||
variant == &drv_data_exynosautov9_cl0 ||
- variant == &drv_data_gs101_cl0) {
+ variant == &drv_data_gs101_cl0 ||
+ variant == &drv_data_exynosautov920_cl0) {
u32 index;
int err;
@@ -662,6 +695,8 @@ s3c2410_get_wdt_drv_data(struct platform_device *pdev, struct s3c2410_wdt *wdt)
variant = &drv_data_exynosautov9_cl1;
else if (variant == &drv_data_gs101_cl0)
variant = &drv_data_gs101_cl1;
+ else if (variant == &drv_data_exynosautov920_cl0)
+ variant = &drv_data_exynosautov920_cl1;
break;
default:
return dev_err_probe(dev, -EINVAL, "wrong cluster index: %u\n", index);
@@ -699,11 +734,11 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
return ret;
if (wdt->drv_data->quirks & QUIRKS_HAVE_PMUREG) {
- wdt->pmureg = exynos_get_pmu_regmap_by_phandle(dev->of_node,
- "samsung,syscon-phandle");
+ wdt->pmureg = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "samsung,syscon-phandle");
if (IS_ERR(wdt->pmureg))
return dev_err_probe(dev, PTR_ERR(wdt->pmureg),
- "PMU regmap lookup failed.\n");
+ "syscon regmap lookup failed.\n");
}
wdt_irq = platform_get_irq(pdev, 0);