From: ben.dooks@codethink.co.uk (Ben Dooks)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 09/20] mvebu: support running big-endian
Date: Fri, 30 Aug 2013 20:10:45 +0100 [thread overview]
Message-ID: <1377889856-9447-10-git-send-email-ben.dooks@codethink.co.uk> (raw)
In-Reply-To: <1377889856-9447-1-git-send-email-ben.dooks@codethink.co.uk>
Add indication we can run these cores in BE mode, and ensure that the
secondary CPU is set to big-endian mode in the initialisation code as
the initial code runs little-endian.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
arch/arm/mach-mvebu/Kconfig | 1 +
arch/arm/mach-mvebu/coherency_ll.S | 3 +++
arch/arm/mach-mvebu/headsmp.S | 4 ++++
3 files changed, 8 insertions(+)
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 9eb63d7..5e269d7 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -1,5 +1,6 @@
config ARCH_MVEBU
bool "Marvell SOCs with Device Tree support" if ARCH_MULTI_V7
+ select ARCH_SUPPORTS_BIG_ENDIAN
select CLKSRC_MMIO
select COMMON_CLK
select GENERIC_CLOCKEVENTS
diff --git a/arch/arm/mach-mvebu/coherency_ll.S b/arch/arm/mach-mvebu/coherency_ll.S
index 5476669..ee7598f 100644
--- a/arch/arm/mach-mvebu/coherency_ll.S
+++ b/arch/arm/mach-mvebu/coherency_ll.S
@@ -20,6 +20,8 @@
#define ARMADA_XP_CFB_CTL_REG_OFFSET 0x0
#define ARMADA_XP_CFB_CFG_REG_OFFSET 0x4
+#include <asm/assembler.h>
+
.text
/*
* r0: Coherency fabric base register address
@@ -29,6 +31,7 @@ ENTRY(ll_set_cpu_coherent)
/* Create bit by cpu index */
mov r3, #(1 << 24)
lsl r1, r3, r1
+ARM_BE8(rev r1, r1)
/* Add CPU to SMP group - Atomic */
add r3, r0, #ARMADA_XP_CFB_CTL_REG_OFFSET
diff --git a/arch/arm/mach-mvebu/headsmp.S b/arch/arm/mach-mvebu/headsmp.S
index 8a1b0c9..3dd80df4 100644
--- a/arch/arm/mach-mvebu/headsmp.S
+++ b/arch/arm/mach-mvebu/headsmp.S
@@ -21,12 +21,16 @@
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
+
/*
* Armada XP specific entry point for secondary CPUs.
* We add the CPU to the coherency fabric and then jump to secondary
* startup
*/
ENTRY(armada_xp_secondary_startup)
+ ARM_BE8(setend be ) @ go BE8 if entered LE
+
/* Get coherency fabric base physical address */
adr r0, 1f
ldr r1, [r0]
--
1.7.10.4
next prev parent reply other threads:[~2013-08-30 19:10 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-30 19:10 big-endian patch series Ben Dooks
2013-08-30 19:10 ` [PATCH 01/20] ARM: fix ARCH_IXP4xx usage of ARCH_SUPPORTS_BIG_ENDIAN Ben Dooks
2013-08-30 19:10 ` [PATCH 02/20] ARM: asm: Add ARM_BE8() assembly helper Ben Dooks
2013-08-30 19:10 ` [PATCH 03/20] ARM: fixup_pv_table bug when CPU_ENDIAN_BE8 Ben Dooks
2013-08-30 19:10 ` [PATCH 04/20] ARM: set BE8 if LE in head code Ben Dooks
2013-08-30 19:10 ` [PATCH 05/20] ARM: pl01x debug code endian fix Ben Dooks
2013-08-30 19:10 ` [PATCH 06/20] ARM: twd: data " Ben Dooks
2013-08-30 19:10 ` [PATCH 07/20] ARM: smp_scu: data endian fixes Ben Dooks
2013-08-30 19:10 ` [PATCH 08/20] highbank: enable big-endian Ben Dooks
2013-08-30 21:40 ` Rob Herring
2013-08-31 20:17 ` Sergei Shtylyov
2013-08-30 19:10 ` Ben Dooks [this message]
2013-08-30 19:10 ` [PATCH 10/20] vexpress: add big endian support Ben Dooks
2013-08-30 19:10 ` [PATCH 11/20] ARM: alignment: correctly decode instructions in BE8 mode Ben Dooks
2013-08-30 19:10 ` [PATCH 12/20] ARM: traps: use <asm/opcodes.h> to get correct instruction order Ben Dooks
2013-08-30 19:10 ` [PATCH 13/20] ARM: module: correctly relocate instructions in BE8 Ben Dooks
2013-08-30 19:10 ` [PATCH 14/20] ARM: set --be8 when linking modules Ben Dooks
2013-08-30 19:10 ` [PATCH 15/20] ARM: hardware: fix endian-ness in <hardware/coresight.h> Ben Dooks
2013-08-30 19:10 ` [PATCH 16/20] ARM: net: fix arm instruction endian-ness in bpf_jit_32.c Ben Dooks
2013-08-30 19:10 ` [PATCH 17/20] ARM: Correct BUG() assembly to ensure it is endian-agnostic Ben Dooks
2013-08-30 19:10 ` [PATCH 18/20] ARM: kdgb: use <asm/opcodes.h> for data to be assembled as intruction Ben Dooks
2013-08-30 19:10 ` [PATCH 19/20] ARM: atomic64: fix endian-ness in atomic.h Ben Dooks
2013-08-30 19:10 ` [PATCH 20/20] ARM: signal: sigreturn_codes should be endian neutral to work in BE8 Ben Dooks
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