From: Gregory CLEMENT <gregory.clement@free-electrons.com>
To: Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
linux-arm-kernel@lists.infradead.org,
Lior Amsalem <alior@marvell.com>,
Tawfik Bayouk <tawfik@marvell.com>,
Nadav Haklai <nadavh@marvell.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/4] ARM: mvebu: Move SCU power up in a function
Date: Thu, 30 Oct 2014 12:39:42 +0100 [thread overview]
Message-ID: <1414669184-16785-3-git-send-email-gregory.clement@free-electrons.com> (raw)
In-Reply-To: <1414669184-16785-1-git-send-email-gregory.clement@free-electrons.com>
This will allow reusing the same function in the secondary_startup
for the Cortex A9 SoC.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
---
arch/arm/mach-mvebu/pmsu_ll.S | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-mvebu/pmsu_ll.S b/arch/arm/mach-mvebu/pmsu_ll.S
index a945756cfb45..83d014698314 100644
--- a/arch/arm/mach-mvebu/pmsu_ll.S
+++ b/arch/arm/mach-mvebu/pmsu_ll.S
@@ -12,6 +12,18 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
+
+ENTRY(armada_38x_scu_power_up)
+ mrc p15, 4, r1, c15, c0 @ get SCU base address
+ orr r1, r1, #0x8 @ SCU CPU Power Status Register
+ mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID
+ and r0, r0, #15
+ add r1, r1, r0
+ mov r0, #0x0
+ strb r0, [r1] @ switch SCU power state to Normal mode
+ ret lr
+ENDPROC(armada_38x_scu_power_up)
+
/*
* This is the entry point through which CPUs exiting cpuidle deep
* idle state are going.
@@ -27,13 +39,7 @@ ENTRY(armada_38x_cpu_resume)
/* do we need it for Armada 38x*/
ARM_BE8(setend be ) @ go BE8 if entered LE
bl v7_invalidate_l1
- mrc p15, 4, r1, c15, c0 @ get SCU base address
- orr r1, r1, #0x8 @ SCU CPU Power Status Register
- mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID
- and r0, r0, #15
- add r1, r1, r0
- mov r0, #0x0
- strb r0, [r1] @ switch SCU power state to Normal mode
+ bl armada_38x_scu_power_up
b cpu_resume
ENDPROC(armada_38x_cpu_resume)
--
1.9.1
next prev parent reply other threads:[~2014-10-30 11:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-30 11:39 [PATCH v2 0/4] Hot plug support for the Armada 38x SoCs Gregory CLEMENT
2014-10-30 11:39 ` [PATCH v2 1/4] ARM: mvebu: Clean-up the Armada XP support Gregory CLEMENT
2014-10-30 11:39 ` Gregory CLEMENT [this message]
2014-10-30 11:39 ` [PATCH v2 3/4] ARM: mvebu: Fix the secondary startup for Cortex A9 SoC Gregory CLEMENT
2014-10-30 11:39 ` [PATCH v2 4/4] ARM: mvebu: Implement the CPU hotplug support for the Armada 38x SoCs Gregory CLEMENT
2014-11-13 12:02 ` [PATCH v2 0/4] Hot plug " Gregory CLEMENT
2014-11-19 11:26 ` Thomas Petazzoni
2014-11-22 2:40 ` Jason Cooper
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