p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15 

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>
This commit is contained in:
Geert Uytterhoeven 2018-07-12 18:08:57 +02:00 committed by Simon Horman
parent 8fc0d470bc
commit 54f464e0c9
4 changed files with 2 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-shmobile/Kconfig
View File

@ -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

1
arch/arm/mach-shmobile/setup-r8a73a4.c
View File

@ -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

4
arch/arm/mach-shmobile/setup-rcar-gen2.c
View File

@ -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,

8
arch/arm/mach-shmobile/timer.c
View File

@ -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);
}