diff mbox

[v3,6/6] arm64: arch_timer: acpi: add hisi timer errata data

Message ID 1478264794-14652-6-git-send-email-dingtianhong@huawei.com
State Superseded
Headers show

Commit Message

Ding Tianhong Nov. 4, 2016, 1:06 p.m. UTC 
From: Hanjun Guo <hanjun.guo@linaro.org>


Add hisi timer specific erratum fixes.

v3: add hisilicon erratum 161601 for ACPI mode.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>

---
 drivers/clocksource/arm_arch_timer.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

-- 
1.9.0



_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff mbox

Patch

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 9bc93e5..270d179 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -1078,10 +1078,26 @@  struct gtdt_arch_timer_fixup {
 	u32 erratum;
 };
 
+#ifdef CONFIG_HISILICON_ERRATUM_161601
+static void __init erratum_workaround_enable(u32 erratum)
+{
+	if (erratum & HISILICON_161601) {
+		timer_unstable_counter_workaround = &arch_timer_hisi_161601;
+		static_branch_enable(&arch_timer_read_ool_enabled);
+		pr_info("Enabling workaround for HISILICON ERRATUM 161601\n");
+	}
+}
+#endif
+
 /* note: this needs to be updated according to the doc of OEM ID
  * and TABLE ID for different board.
  */
 struct gtdt_arch_timer_fixup arch_timer_quirks[] __initdata = {
+#ifdef CONFIG_HISILICON_ERRATUM_161601
+	{"HISI", "hip05", 0, &erratum_workaround_enable, HISILICON_161601},
+	{"HISI", "hip06", 0, &erratum_workaround_enable, HISILICON_161601},
+	{"HISI", "hip07", 0, &erratum_workaround_enable, HISILICON_161601},
+#endif
 };
 
 void __init arch_timer_acpi_quirks_handler(char *oem_id,