From: geert+renesas@glider.be (Geert Uytterhoeven)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/6] ARM: shmobile: r8a7779: Stop powering down secondary CPUs during early boot
Date: Wed, 30 May 2018 17:25:12 +0200 [thread overview]
Message-ID: <1527693916-11215-3-git-send-email-geert+renesas@glider.be> (raw)
In-Reply-To: <1527693916-11215-1-git-send-email-geert+renesas@glider.be>
At .smp_prepare_cpus() time, CPUs 1-3 are still powered down:
- The bootloader doesn't enable CPUs 1-3,
- Non-boot CPUs are disabled by kexec before starting the new kernel.
Hence there is no need to try to power them down again, as it will fail
silently with -EIO anyway.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
arch/arm/mach-shmobile/smp-r8a7779.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index c6951ee245889b8f..ff1e6fc0b861c4fc 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -97,11 +97,6 @@ static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)
shmobile_smp_scu_prepare_cpus(R8A7779_SCU_BASE, max_cpus);
r8a7779_pm_init();
-
- /* power off secondary CPUs */
- r8a7779_platform_cpu_kill(1);
- r8a7779_platform_cpu_kill(2);
- r8a7779_platform_cpu_kill(3);
}
#ifdef CONFIG_HOTPLUG_CPU
--
2.7.4
next prev parent reply other threads:[~2018-05-30 15:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-30 15:25 [PATCH 0/6] ARM: shmobile: rcar: Drop lehacy SYSC fallbacks Geert Uytterhoeven
2018-05-30 15:25 ` [PATCH 1/6] ARM: shmobile: rcar-gen2: Remove explicit SYSC config and init Geert Uytterhoeven
2018-05-30 15:25 ` Geert Uytterhoeven [this message]
2018-05-30 15:25 ` [PATCH 3/6] soc: renesas: rcar-sysc: Provide helpers to power up/down CPUs Geert Uytterhoeven
2018-05-30 15:25 ` [PATCH 4/6] ARM: shmobile: r8a7779: Use rcar_sysc_power_{down, up}_cpu() Geert Uytterhoeven
2018-05-30 15:25 ` [PATCH 5/6] ARM: shmobile: r8a7779: Remove explicit SYSC config and init Geert Uytterhoeven
2018-05-30 15:25 ` [PATCH 6/6] soc: renesas: rcar-sysc: Drop legacy handling Geert Uytterhoeven
2018-06-04 10:13 ` [PATCH 0/6] ARM: shmobile: rcar: Drop lehacy SYSC fallbacks Simon Horman
2018-06-04 12:34 ` Simon Horman
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