[PATCH 5/5] ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15

Simon Horman
2018-07-20T12:05:36Z

From: Geert Uytterhoeven <geert+renesas@glider.be>

R-Mobile APE6, R-Car Gen2, and RZ/G1 SoCs have Cortex-A7 and/or
Cortex-A15 CPU cores, all of which have ARM architectured timers.

Force use of the ARM architectured timer on these SoCs.
This allows to:
- Remove the calls to shmobile_init_delay() from the corresponding
machine vectors,
- Remove a check in timer setup specific to R-Car Gen2,
- Remove a check in shmobile_init_delay().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
arch/arm/mach-shmobile/Kconfig | 2 ++
arch/arm/mach-shmobile/setup-r8a73a4.c | 1 -
arch/arm/mach-shmobile/setup-rcar-gen2.c | 4 ----
arch/arm/mach-shmobile/timer.c | 8 --------
4 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 0b67254eabb2..aeb2eed08598 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -15,6 +15,7 @@ config ARCH_RCAR_GEN1

config ARCH_RCAR_GEN2
bool
+ select HAVE_ARM_ARCH_TIMER
select PM
select PM_GENERIC_DOMAINS
select RENESAS_IRQC
@@ -58,6 +59,7 @@ config ARCH_R8A73A4
bool "R-Mobile APE6 (R8A73A40)"
select ARCH_RMOBILE
select ARM_ERRATA_798181 if SMP
+ select HAVE_ARM_ARCH_TIMER
select RENESAS_IRQC

config ARCH_R8A7740
diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c
index ef391fa368e9..23a29a0ea9c9 100644
--- a/arch/arm/mach-shmobile/setup-r8a73a4.c
+++ b/arch/arm/mach-shmobile/setup-r8a73a4.c
@@ -18,7 +18,6 @@ static const char *const r8a73a4_boards_compat_dt[] __initconst = {
};

DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)")
- .init_early = shmobile_init_delay,
.init_late = shmobile_init_late,
.dt_compat = r8a73a4_boards_compat_dt,
MACHINE_END
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index 117531367f17..013acc97795c 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -59,7 +59,6 @@ static unsigned int __init get_extal_freq(void)

void __init rcar_gen2_timer_init(void)
{
-#ifdef CONFIG_ARM_ARCH_TIMER
void __iomem *base;
u32 freq;

@@ -101,7 +100,6 @@ void __init rcar_gen2_timer_init(void)
}

iounmap(base);
-#endif /* CONFIG_ARM_ARCH_TIMER */

of_clk_init(NULL);
timer_probe();
@@ -187,7 +185,6 @@ static const char * const rcar_gen2_boards_compat_dt[] __initconst = {
};

DT_MACHINE_START(RCAR_GEN2_DT, "Generic R-Car Gen2 (Flattened Device Tree)")
- .init_early = shmobile_init_delay,
.init_late = shmobile_init_late,
.init_time = rcar_gen2_timer_init,
.reserve = rcar_gen2_reserve,
@@ -202,7 +199,6 @@ static const char * const rz_g1_boards_compat_dt[] __initconst = {
};

DT_MACHINE_START(RZ_G1_DT, "Generic RZ/G1 (Flattened Device Tree)")
- .init_early = shmobile_init_delay,
.init_late = shmobile_init_late,
.init_time = rcar_gen2_timer_init,
.reserve = rcar_gen2_reserve,
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 6196a6380385..828e8aea037e 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -32,14 +32,6 @@ void __init shmobile_init_delay(void)
for_each_child_of_node(cpus, np) {
u32 freq;

- if (IS_ENABLED(CONFIG_ARM_ARCH_TIMER) &&
- (of_device_is_compatible(np, "arm,cortex-a7") ||
- of_device_is_compatible(np, "arm,cortex-a15"))) {
- of_node_put(np);
- of_node_put(cpus);
- return;
- }
-
if (!of_property_read_u32(np, "clock-frequency", &freq))
max_freq = max(max_freq, freq);
}
--
2.11.0