diff options
Diffstat (limited to 'target/linux/sunxi/patches-4.19')
| -rw-r--r-- | target/linux/sunxi/patches-4.19/100-clocksource-drivers-arch_timer-Workaround-for-Allwin.patch | 44 |
1 files changed, 7 insertions, 37 deletions
diff --git a/target/linux/sunxi/patches-4.19/100-clocksource-drivers-arch_timer-Workaround-for-Allwin.patch b/target/linux/sunxi/patches-4.19/100-clocksource-drivers-arch_timer-Workaround-for-Allwin.patch index c25e3c4aee..5b9b9dc846 100644 --- a/target/linux/sunxi/patches-4.19/100-clocksource-drivers-arch_timer-Workaround-for-Allwin.patch +++ b/target/linux/sunxi/patches-4.19/100-clocksource-drivers-arch_timer-Workaround-for-Allwin.patch @@ -141,39 +141,9 @@ Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> drivers/clocksource/arm_arch_timer.c | 55 ++++++++++++++++++++++++++ 3 files changed, 67 insertions(+) ---- a/Documentation/arm64/silicon-errata.txt -+++ b/Documentation/arm64/silicon-errata.txt -@@ -44,6 +44,8 @@ stable kernels. - - | Implementor | Component | Erratum ID | Kconfig | - +----------------+-----------------+-----------------+-----------------------------+ -+| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 | -+| | | | | - | ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 | - | ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 | - | ARM | Cortex-A53 | #824069 | ARM64_ERRATUM_824069 | ---- a/drivers/clocksource/Kconfig -+++ b/drivers/clocksource/Kconfig -@@ -365,6 +365,16 @@ config ARM64_ERRATUM_858921 - The workaround will be dynamically enabled when an affected - core is detected. - -+config SUN50I_ERRATUM_UNKNOWN1 -+ bool "Workaround for Allwinner A64 erratum UNKNOWN1" -+ default y -+ depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI -+ select ARM_ARCH_TIMER_OOL_WORKAROUND -+ help -+ This option enables a workaround for instability in the timer on -+ the Allwinner A64 SoC. The workaround will only be active if the -+ allwinner,erratum-unknown1 property is found in the timer node. -+ - config ARM_GLOBAL_TIMER - bool "Support for the ARM global timer" if COMPILE_TEST - select TIMER_OF if OF --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c -@@ -319,6 +319,48 @@ static u64 notrace arm64_858921_read_cnt +@@ -361,6 +361,48 @@ static u32 notrace sun50i_a64_read_cntv_ } #endif @@ -222,11 +192,10 @@ Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> #ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND DEFINE_PER_CPU(const struct arch_timer_erratum_workaround *, timer_unstable_counter_workaround); EXPORT_SYMBOL_GPL(timer_unstable_counter_workaround); -@@ -408,6 +450,19 @@ static const struct arch_timer_erratum_w - .read_cntvct_el0 = arm64_858921_read_cntvct_el0, +@@ -451,6 +493,19 @@ static const struct arch_timer_erratum_w }, #endif -+#ifdef CONFIG_SUN50I_ERRATUM_UNKNOWN1 + #ifdef CONFIG_SUN50I_ERRATUM_UNKNOWN1 + { + .match_type = ate_match_dt, + .id = "allwinner,erratum-unknown1", @@ -239,6 +208,7 @@ Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> + .set_next_event_virt = erratum_set_next_event_tval_virt, + }, +#endif - }; - - typedef bool (*ate_match_fn_t)(const struct arch_timer_erratum_workaround *, ++#ifdef CONFIG_SUN50I_ERRATUM_UNKNOWN1 + { + .match_type = ate_match_dt, + .id = "allwinner,erratum-unknown1", |