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-rw-r--r--arch/powerpc/kernel/cpu_setup_44x.S1
-rw-r--r--arch/powerpc/kernel/cputable.c96
-rw-r--r--arch/powerpc/kernel/time.c10
3 files changed, 91 insertions, 16 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_44x.S b/arch/powerpc/kernel/cpu_setup_44x.S
index 7d606f89a83..0f1f70a49f2 100644
--- a/arch/powerpc/kernel/cpu_setup_44x.S
+++ b/arch/powerpc/kernel/cpu_setup_44x.S
@@ -35,6 +35,7 @@ _GLOBAL(__setup_cpu_440grx)
_GLOBAL(__setup_cpu_460ex)
_GLOBAL(__setup_cpu_460gt)
_GLOBAL(__setup_cpu_460sx)
+_GLOBAL(__setup_cpu_apm82181)
mflr r4
bl __init_fpu_44x
bl __fixup_440A_mcheck
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 03c862b6a9c..249195ac7e6 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -48,6 +48,7 @@ extern void __setup_cpu_440x5(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_460ex(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_460gt(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_460sx(unsigned long offset, struct cpu_spec *spec);
+extern void __setup_cpu_apm82181(unsigned long offset, struct cpu_spec *spec);
extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
@@ -1636,10 +1637,10 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
- { /* 460EX */
- .pvr_mask = 0xffff0006,
- .pvr_value = 0x13020002,
- .cpu_name = "460EX",
+ { /* 460EX rev B */
+ .pvr_mask = 0xffff0007,
+ .pvr_value = 0x13020004,
+ .cpu_name = "460EX Rev. B",
.cpu_features = CPU_FTRS_440x6,
.cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_44x,
@@ -1649,10 +1650,23 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
- { /* 460EX Rev B */
+ { /* 460GT Rev B */
.pvr_mask = 0xffff0007,
- .pvr_value = 0x13020004,
- .cpu_name = "460EX Rev. B",
+ .pvr_value = 0x13020005,
+ .cpu_name = "460GT Rev. B",
+ .cpu_features = CPU_FTRS_440x6,
+ .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_44x,
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ .cpu_setup = __setup_cpu_460gt,
+ .machine_check = machine_check_440A,
+ .platform = "ppc440",
+ },
+ { /* 431EX */
+ .pvr_mask = 0xffff000f,
+ .pvr_value = 0x13020006,
+ .cpu_name = "431EX",
.cpu_features = CPU_FTRS_440x6,
.cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_44x,
@@ -1662,23 +1676,62 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
- { /* 460GT */
+ { /* 460EXR rev B */
+ .pvr_mask = 0xffff000a,
+ .pvr_value = 0x13020008,
+ .cpu_name = "460EXr Rev. B",
+ .cpu_features = CPU_FTRS_440x6,
+ .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_44x,
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ .cpu_setup = __setup_cpu_460ex,
+ .machine_check = machine_check_440A,
+ .platform = "ppc440",
+ },
+ { /* 431EXR */
+ .pvr_mask = 0xffff000b,
+ .pvr_value = 0x1302000A,
+ .cpu_name = "431EXr",
+ .cpu_features = CPU_FTRS_440x6,
+ .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_44x,
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ .cpu_setup = __setup_cpu_460ex,
+ .machine_check = machine_check_440A,
+ .platform = "ppc440",
+ },
+ { /* AM81281 */
+ .pvr_mask = 0xffff000b,
+ .pvr_value = 0x1302000B,
+ .cpu_name = "AM81281",
+ .cpu_features = CPU_FTRS_440x6,
+ .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_44x,
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ .cpu_setup = __setup_cpu_460ex,
+ .machine_check = machine_check_440A,
+ .platform = "ppc440",
+ },
+ { /* 460EX */
.pvr_mask = 0xffff0006,
- .pvr_value = 0x13020000,
- .cpu_name = "460GT",
+ .pvr_value = 0x13020002,
+ .cpu_name = "460EX",
.cpu_features = CPU_FTRS_440x6,
.cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_44x,
.icache_bsize = 32,
.dcache_bsize = 32,
- .cpu_setup = __setup_cpu_460gt,
+ .cpu_setup = __setup_cpu_460ex,
.machine_check = machine_check_440A,
.platform = "ppc440",
},
- { /* 460GT Rev B */
- .pvr_mask = 0xffff0007,
- .pvr_value = 0x13020005,
- .cpu_name = "460GT Rev. B",
+ { /* 460GT */
+ .pvr_mask = 0xffff0006,
+ .pvr_value = 0x13020000,
+ .cpu_name = "460GT",
.cpu_features = CPU_FTRS_440x6,
.cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_44x,
@@ -1701,6 +1754,19 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
+ { /* APM82181 */
+ .pvr_mask = 0xfffffff0,
+ .pvr_value = 0x12C41C80,
+ .cpu_name = "APM82181",
+ .cpu_features = CPU_FTRS_44X,
+ .cpu_user_features = COMMON_USER_BOOKE || PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_44x,
+ .icache_bsize = 32,
+ .dcache_bsize = 32,
+ .cpu_setup = __setup_cpu_apm82181,
+ .machine_check = machine_check_440A,
+ .platform = "ppc440",
+ },
{ /* default match */
.pvr_mask = 0x00000000,
.pvr_value = 0x00000000,
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index a136a11c490..02514463ced 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -895,12 +895,20 @@ static void decrementer_set_mode(enum clock_event_mode mode,
decrementer_set_next_event(DECREMENTER_MAX, dev);
}
+static inline uint64_t div_sc64(unsigned long ticks, unsigned long nsec,
+ int shift)
+{
+ uint64_t tmp = ((uint64_t)ticks) << shift; +
+ do_div(tmp, nsec);
+ return tmp;
+}
+
static void __init setup_clockevent_multiplier(unsigned long hz)
{
u64 mult, shift = 32;
while (1) {
- mult = div_sc(hz, NSEC_PER_SEC, shift);
+ mult = div_sc64(hz, NSEC_PER_SEC, shift);
if (mult && (mult >> 32UL) == 0UL)
break;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-22 12:26:55 +0000