diff options
Diffstat (limited to 'target/linux/ipq806x/patches-3.18/011-watchdog-qcom-use-timer-devicetree-binding.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-3.18/011-watchdog-qcom-use-timer-devicetree-binding.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-3.18/011-watchdog-qcom-use-timer-devicetree-binding.patch b/target/linux/ipq806x/patches-3.18/011-watchdog-qcom-use-timer-devicetree-binding.patch new file mode 100644 index 0000000..68489a8 --- /dev/null +++ b/target/linux/ipq806x/patches-3.18/011-watchdog-qcom-use-timer-devicetree-binding.patch @@ -0,0 +1,67 @@ +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(-) + +--- 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 platfor + { + 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 platfor + 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 platfo + } + + 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); |