diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.4/010-6-watchdog-qcom-configure-BARK-time-in-addition-to-BITE-time.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.4/010-6-watchdog-qcom-configure-BARK-time-in-addition-to-BITE-time.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.4/010-6-watchdog-qcom-configure-BARK-time-in-addition-to-BITE-time.patch b/target/linux/ipq806x/patches-4.4/010-6-watchdog-qcom-configure-BARK-time-in-addition-to-BITE-time.patch new file mode 100644 index 0000000000..bdc3f99897 --- /dev/null +++ b/target/linux/ipq806x/patches-4.4/010-6-watchdog-qcom-configure-BARK-time-in-addition-to-BITE-time.patch @@ -0,0 +1,60 @@ +From 10073a205df269abcbd9c3fbc690a813827107ef Mon Sep 17 00:00:00 2001 +From: Matthew McClintock <mmcclint@codeaurora.org> +Date: Tue, 28 Jun 2016 11:35:21 -0700 +Subject: watchdog: qcom: configure BARK time in addition to BITE time + +For certain parts and some versions of TZ, TZ will reset the chip +when a BARK is triggered even though it was not configured here. So +by default let's configure this BARK time as well. + +Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org> +Reviewed-by: Guenter Roeck <linux@roeck-us.net> +Signed-off-by: Thomas Pedersen <twp@codeaurora.org> +Signed-off-by: Guenter Roeck <linux@roeck-us.net> +Signed-off-by: Wim Van Sebroeck <wim@iguana.be> +--- + drivers/watchdog/qcom-wdt.c | 5 +++++ + 1 file changed, 5 insertions(+) + +--- a/drivers/watchdog/qcom-wdt.c ++++ b/drivers/watchdog/qcom-wdt.c +@@ -24,6 +24,7 @@ enum wdt_reg { + WDT_RST, + WDT_EN, + WDT_STS, ++ WDT_BARK_TIME, + WDT_BITE_TIME, + }; + +@@ -31,6 +32,7 @@ static const u32 reg_offset_data_apcs_tm + [WDT_RST] = 0x38, + [WDT_EN] = 0x40, + [WDT_STS] = 0x44, ++ [WDT_BARK_TIME] = 0x4C, + [WDT_BITE_TIME] = 0x5C, + }; + +@@ -38,6 +40,7 @@ static const u32 reg_offset_data_kpss[] + [WDT_RST] = 0x4, + [WDT_EN] = 0x8, + [WDT_STS] = 0xC, ++ [WDT_BARK_TIME] = 0x10, + [WDT_BITE_TIME] = 0x14, + }; + +@@ -66,6 +69,7 @@ static int qcom_wdt_start(struct watchdo + + writel(0, wdt_addr(wdt, WDT_EN)); + writel(1, wdt_addr(wdt, WDT_RST)); ++ writel(wdd->timeout * wdt->rate, wdt_addr(wdt, WDT_BARK_TIME)); + writel(wdd->timeout * wdt->rate, wdt_addr(wdt, WDT_BITE_TIME)); + writel(1, wdt_addr(wdt, WDT_EN)); + return 0; +@@ -108,6 +112,7 @@ static int qcom_wdt_restart(struct watch + + writel(0, wdt_addr(wdt, WDT_EN)); + writel(1, wdt_addr(wdt, WDT_RST)); ++ writel(timeout, wdt_addr(wdt, WDT_BARK_TIME)); + writel(timeout, wdt_addr(wdt, WDT_BITE_TIME)); + writel(1, wdt_addr(wdt, WDT_EN)); + |