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ARM: sunxi: select ARM_PSCI

PATCH Superseded Zalan Blenessy 2 participants 5 messages Dec 25, 2013 – Jan 1, 2014

Subsystems (3)
Arm (32-bit) Arm sub-architectures Arm/Allwinner sunXi SoC support
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Zalan Blenessy

author
#0 lore raw

cover ARM: sunxi: select ARM_PSCI

Hello!

This patch enabled ARM_PSCI by default, which is necessary when the CPU (e.g. sun7i) is intialized from u-boot.

BR, Zalan Blenessy

Zalan Blenessy (1):
ARM: sunxi: select ARM_PSCI

 arch/arm/mach-sunxi/Kconfig |    1 +
 1 file changed, 1 insertion(+)
Signature · 1 line
1.7.10.4
author
#1 lore raw

PATCH 1/1 ARM: sunxi: select ARM_PSCI

This is necessary for SMP on sun7i.

Signed-off-by Zalan Blenessy <[email protected]>
---
 arch/arm/mach-sunxi/Kconfig |    1 +
 1 file changed, 1 insertion(+)
arch/arm/mach-sunxi/Kconfig +1 -0
index 547004c..09df4b81 100644
@@ -3,6 +3,7 @@ config ARCH_SUNXI
 	select ARCH_HAS_RESET_CONTROLLER
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_GIC
+	select ARM_PSCI
 	select CLKSRC_MMIO
 	select CLKSRC_OF
 	select COMMON_CLK
Signature · 1 line
1.7.10.4
#2 lore raw

PATCH 1/1 ARM: sunxi: select ARM_PSCI

Hi Zalan,

Quoted 3 lines · Zalan Blenessy

This is necessary for SMP on sun7i.

Signed-off-by Zalan Blenessy <[email protected]>

I'd expect a bit more details here. What you wrote in your cover letter would be a good start.

Something like
----8<----
On Allwinner sun7i (A20) SoCs, the SMP operations are implemented in u-boot, and exposed to the kernel through PSCI.

We thus need to enable PSCI support for Allwinner SoCs so that the kernel uses it to bring up the additionnal cores. ----8<----

Thanks!
Maxime

Signature · 10 lines
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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author
#3 lore raw

PATCH v2 1/1 ARM: sunxi: select ARM_PSCI

In reply to Zalan Blenessy

On Allwinner sun7i (A20) SoCs, the SMP operations are implemented in u-boot, and exposed to the kernel through PSCI.

We thus need to enable PSCI support for Allwinner SoCs so that the kernel uses it to bring up the additionnal cores.

Signed-off-by Signed-off-by: Zalan Blenessy <[email protected]>

---
Changes[v2]:
- Improved patch description

 arch/arm/mach-sunxi/Kconfig |    1 +
 1 file changed, 1 insertion(+)
arch/arm/mach-sunxi/Kconfig +1 -0
index 547004c..09df4b81 100644
@@ -3,6 +3,7 @@ config ARCH_SUNXI
 	select ARCH_HAS_RESET_CONTROLLER
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_GIC
+	select ARM_PSCI
 	select CLKSRC_MMIO
 	select CLKSRC_OF
 	select COMMON_CLK
Signature · 1 line
1.7.10.4
Applied
#4 lore raw

PATCH v2 1/1 ARM: sunxi: select ARM_PSCI

Hi Zalan,

Quoted 7 lines · Zalan Blenessy

On Allwinner sun7i (A20) SoCs, the SMP operations are implemented in u-boot, and exposed to the kernel through PSCI.

We thus need to enable PSCI support for Allwinner SoCs so that the kernel uses it to bring up the additionnal cores.

Signed-off-by Signed-off-by: Zalan Blenessy <[email protected]>

Thanks!

Applied in sunxi/core-for-3.14.

Maxime

Signature · 10 lines
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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