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authorJohn Crispin <john@openwrt.org>2015-04-01 08:32:03 +0000
committerJohn Crispin <john@openwrt.org>2015-04-01 08:32:03 +0000
commitd3a9fc4586f05f5baffec6eedab5e9884348aa97 (patch)
tree2599794a0587a65b620a1450a54c6cf470903640 /target/linux/ipq806x/patches-4.0/011-watchdog-qcom-use-timer-devicetree-binding.patch
parent2d74104b524e51d9ded11ea5b3cb6f39a08e5711 (diff)
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ipq806x: add support for 4.0 kernel
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 45210
Diffstat (limited to 'target/linux/ipq806x/patches-4.0/011-watchdog-qcom-use-timer-devicetree-binding.patch')
-rw-r--r--target/linux/ipq806x/patches-4.0/011-watchdog-qcom-use-timer-devicetree-binding.patch72
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.0/011-watchdog-qcom-use-timer-devicetree-binding.patch b/target/linux/ipq806x/patches-4.0/011-watchdog-qcom-use-timer-devicetree-binding.patch
new file mode 100644
index 0000000000..0cd7da1f6d
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.0/011-watchdog-qcom-use-timer-devicetree-binding.patch
@@ -0,0 +1,72 @@
+From fded70251b1b58f68de1d3757ece9965f0b75452 Mon Sep 17 00:00:00 2001
+From: Mathieu Olivari <mathieu@codeaurora.org>
+Date: Thu, 19 Feb 2015 20:19:30 -0800
+Subject: [PATCH 1/3] watchdog: qcom: use timer devicetree binding
+
+MSM watchdog configuration happens in the same register block as the
+timer, so we'll use the same binding as the existing timer.
+
+The qcom-wdt will now be probed when devicetree has an entry compatible
+with "qcom,kpss-timer" or "qcom-scss-timer".
+
+Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
+---
+ drivers/watchdog/qcom-wdt.c | 21 +++++++++++++++------
+ 1 file changed, 15 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c
+index aa85618..aa03ca8 100644
+--- a/drivers/watchdog/qcom-wdt.c
++++ b/drivers/watchdog/qcom-wdt.c
+@@ -20,9 +20,9 @@
+ #include <linux/reboot.h>
+ #include <linux/watchdog.h>
+
+-#define WDT_RST 0x0
+-#define WDT_EN 0x8
+-#define WDT_BITE_TIME 0x24
++#define WDT_RST 0x38
++#define WDT_EN 0x40
++#define WDT_BITE_TIME 0x5C
+
+ struct qcom_wdt {
+ struct watchdog_device wdd;
+@@ -117,6 +117,8 @@ static int qcom_wdt_probe(struct platform_device *pdev)
+ {
+ struct qcom_wdt *wdt;
+ struct resource *res;
++ struct device_node *np = pdev->dev.of_node;
++ u32 percpu_offset;
+ int ret;
+
+ wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
+@@ -124,6 +126,14 @@ static int qcom_wdt_probe(struct platform_device *pdev)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++
++ /* We use CPU0's DGT for the watchdog */
++ if (of_property_read_u32(np, "cpu-offset", &percpu_offset))
++ percpu_offset = 0;
++
++ res->start += percpu_offset;
++ res->end += percpu_offset;
++
+ wdt->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(wdt->base))
+ return PTR_ERR(wdt->base);
+@@ -203,9 +213,8 @@ static int qcom_wdt_remove(struct platform_device *pdev)
+ }
+
+ static const struct of_device_id qcom_wdt_of_table[] = {
+- { .compatible = "qcom,kpss-wdt-msm8960", },
+- { .compatible = "qcom,kpss-wdt-apq8064", },
+- { .compatible = "qcom,kpss-wdt-ipq8064", },
++ { .compatible = "qcom,kpss-timer" },
++ { .compatible = "qcom,scss-timer" },
+ { },
+ };
+ MODULE_DEVICE_TABLE(of, qcom_wdt_of_table);
+--
+1.9.1
+