The DD2 core still has some unstability. Define CPU_FTR_476_DD2 to
enable workarounds in later patches.
This is based on an earlier, unreleased patch for DD1 by Ben Herrenschmidt.
Signed-off-by: Dave Kleikamp <sha...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/cputable.h | 3 ++-
arch/powerpc/kernel/cputable.c | 22 ++++++++++++++++++----
2 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/cputable.h
b/arch/powerpc/include/asm/cputable.h
index f0a211d..be3cdf9 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -154,6 +154,7 @@ extern const char *powerpc_base_platform;
#define CPU_FTR_NAP_DISABLE_L2_PR ASM_CONST(0x0000000000002000)
#define CPU_FTR_DUAL_PLL_750FX ASM_CONST(0x0000000000004000)
#define CPU_FTR_NO_DPM ASM_CONST(0x0000000000008000)
+#define CPU_FTR_476_DD2 ASM_CONST(0x0000000000010000)
#define CPU_FTR_NEED_COHERENT ASM_CONST(0x0000000000020000)
#define CPU_FTR_NO_BTIC ASM_CONST(0x0000000000040000)
#define CPU_FTR_NODSISRALIGN ASM_CONST(0x0000000000100000)
@@ -465,7 +466,7 @@ enum {
CPU_FTRS_44X | CPU_FTRS_440x6 |
#endif
#ifdef CONFIG_PPC_47x
- CPU_FTRS_47X |
+ CPU_FTRS_47X | CPU_FTR_476_DD2 |
#endif
#ifdef CONFIG_E200
CPU_FTRS_E200 |
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 8d74a24..436e1e5 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1811,11 +1811,11 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
- { /* 476 core */
- .pvr_mask = 0xffff0000,
- .pvr_value = 0x11a50000,
+ { /* 476 DD2 core */
+ .pvr_mask = 0xffffffff,
+ .pvr_value = 0x11a52080,
.cpu_name = "476",
- .cpu_features = CPU_FTRS_47X,
+ .cpu_features = CPU_FTRS_47X | CPU_FTR_476_DD2,
.cpu_user_features = COMMON_USER_BOOKE |
PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_47x |
@@ -1839,6 +1839,20 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_47x,
.platform = "ppc470",
},
+ { /* 476 others */
+ .pvr_mask = 0xffff0000,
+ .pvr_value = 0x11a50000,
+ .cpu_name = "476",
+ .cpu_features = CPU_FTRS_47X,
+ .cpu_user_features = COMMON_USER_BOOKE |
+ PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_47x |
+ MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL,
+ .icache_bsize = 32,
+ .dcache_bsize = 128,
+ .machine_check = machine_check_47x,
+ .platform = "ppc470",
+ },
{ /* default match */
.pvr_mask = 0x00000000,
.pvr_value = 0x00000000,
--
1.7.3.4
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