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| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2013-02-01 10:36:22 +0000 |
|---|---|---|
| committer | Ben Dooks <ben.dooks@codethink.co.uk> | 2013-07-01 11:25:34 +0100 |
| commit | 66a1b4141bb4a10ea6d229129e64e53a21c0f9cd (patch) | |
| tree | fa2c67b3e0be936ed93c4bbf7906444cf56e4395 | |
| parent | 97471931bf558e52d9aab49209527f3a8858653f (diff) | |
| download | linux-66a1b4141bb4a10ea6d229129e64e53a21c0f9cd.tar.gz | |
mvebu: support running big-endian
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>
| -rw-r--r-- | arch/arm/mach-mvebu/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/coherency_ll.S | 3 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/headsmp.S | 4 |
3 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index 80a8bcacd9d5..317cdb800099 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 5476669ba905..ee7598fe75db 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 a06e0ede8c08..a4f995d0318b 100644 --- a/arch/arm/mach-mvebu/headsmp.S +++ b/arch/arm/mach-mvebu/headsmp.S @@ -21,6 +21,8 @@ #include <linux/linkage.h> #include <linux/init.h> +#include <asm/assembler.h> + /* * At this stage the secondary CPUs don't have acces yet to the MMU, so * we have to provide physical addresses @@ -36,6 +38,8 @@ */ ENTRY(armada_xp_secondary_startup) + ARM_BE8(setend be ) @ go BE8 if booted LE + /* Read CPU id */ mrc p15, 0, r1, c0, c0, 5 and r1, r1, #0xF |