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authorVineet Gupta <vgupta@synopsys.com>2015-08-03 12:07:24 +0200
committerVineet Gupta <vgupta@synopsys.com>2015-08-03 16:04:07 +0200
commite13c42ecbe580509451e021ba2586871e5b47640 (patch)
tree1be3e62c4dc5acaf9a5a0e256c2dd41401127d45 /arch/arc/include/asm/arcregs.h
parentARCv2: allow selection of page size for MMUv4 (diff)
downloadlinux-e13c42ecbe580509451e021ba2586871e5b47640.tar.xz
linux-e13c42ecbe580509451e021ba2586871e5b47640.zip
ARCv2: Fix the peripheral address space detection
With HS 2.1 release, the peripheral space register no longer contains the uncached space specifics, causing the kernel to panic early on. So read the newer NON VOLATILE AUX register to get that info. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include/asm/arcregs.h')
-rw-r--r--arch/arc/include/asm/arcregs.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index 070f58827a5c..c8f57b8449dc 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -89,11 +89,10 @@
#define ECR_C_BIT_DTLB_LD_MISS 8
#define ECR_C_BIT_DTLB_ST_MISS 9
-
/* Auxiliary registers */
#define AUX_IDENTITY 4
#define AUX_INTR_VEC_BASE 0x25
-
+#define AUX_NON_VOL 0x5e
/*
* Floating Pt Registers
@@ -240,9 +239,9 @@ struct bcr_extn_xymem {
struct bcr_perip {
#ifdef CONFIG_CPU_BIG_ENDIAN
- unsigned int start:8, pad2:8, sz:8, pad:8;
+ unsigned int start:8, pad2:8, sz:8, ver:8;
#else
- unsigned int pad:8, sz:8, pad2:8, start:8;
+ unsigned int ver:8, sz:8, pad2:8, start:8;
#endif
};