Commit fdb487f5 authored by Chao Xie Linux's avatar Chao Xie Linux Committed by Russell King
Browse files

ARM: 8015/1: Add cpu_is_pj4 to distinguish PJ4 because it has some differences with V7

The patch add cpu_is_pj4 at arch/arm/include/asm/cputype.h
PJ4 has some differences with V7, for example the coprocessor.
To disinguish this kind of situation. cpu_is_pj4 is needed.
Signed-off-by: default avatarChao Xie <>
Reviewed-by: default avatarKevin Hilman <>
Tested-by: default avatarKevin Hilman <>
Tested-by: default avatarStephen Warren <>
Reviewed-by: default avatarStephen Warren <>
Tested-by: default avatarMatt Porter <>
Signed-off-by: default avatarRussell King <>
parent 779dd959
......@@ -221,4 +221,23 @@ static inline int cpu_is_xsc3(void)
#define cpu_is_xscale() 1
* Marvell's PJ4 core is based on V7 version. It has some modification
* for coprocessor setting. For this reason, we need a way to distinguish
* it.
#ifndef CONFIG_CPU_PJ4
#define cpu_is_pj4() 0
static inline int cpu_is_pj4(void)
unsigned int id;
id = read_cpuid_id();
if ((id & 0xfffffff0) == 0x562f5840)
return 1;
return 0;
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