diff options
author | Manuel Lauss <mano@roarinelk.homelinux.net> | 2009-03-25 16:49:28 (GMT) |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2009-03-30 12:49:45 (GMT) |
commit | 270717a8a0e5f03c104a6d47466036b615edfcde (patch) | |
tree | 33b319a455d24b246df5200e523aa66a7341cb42 /arch | |
parent | 76544504aebc606b8279a5314595af5d568e7fea (diff) | |
download | linux-fsl-qoriq-270717a8a0e5f03c104a6d47466036b615edfcde.tar.xz |
MIPS: Alchemy: unify CPU model constants.
This patch removes the various CPU_AU1??? model constants in favor of
a single CPU_ALCHEMY one.
All currently existing Alchemy models are identical in terms of cpu
core and cache size/organization. The parts of the mips kernel which
need to know the exact CPU revision extract it from the c0_prid register
already; and finally nothing else in-tree depends on those any more.
Should a new variant with slightly different "company options" and/or
"processor revision" bits in c0_prid appear, it will be supported
immediately (minus an exact model string in cpuinfo).
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/mips/include/asm/cpu.h | 3 | ||||
-rw-r--r-- | arch/mips/kernel/cpu-probe.c | 21 | ||||
-rw-r--r-- | arch/mips/mm/c-r4k.c | 17 | ||||
-rw-r--r-- | arch/mips/mm/tlbex.c | 8 |
4 files changed, 11 insertions, 38 deletions
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index c018727..3bdc0e3 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -209,8 +209,7 @@ enum cpu_type_enum { * MIPS32 class processors */ CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K, - CPU_AU1000, CPU_AU1100, CPU_AU1200, CPU_AU1210, CPU_AU1250, CPU_AU1500, - CPU_AU1550, CPU_PR4450, CPU_BCM3302, CPU_BCM4710, + CPU_ALCHEMY, CPU_PR4450, CPU_BCM3302, CPU_BCM4710, /* * MIPS64 class processors diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 1bdbcad..b13b8eb 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -183,13 +183,7 @@ void __init check_wait(void) case CPU_TX49XX: cpu_wait = r4k_wait_irqoff; break; - case CPU_AU1000: - case CPU_AU1100: - case CPU_AU1500: - case CPU_AU1550: - case CPU_AU1200: - case CPU_AU1210: - case CPU_AU1250: + case CPU_ALCHEMY: cpu_wait = au1k_wait; break; case CPU_20KC: @@ -783,37 +777,30 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu) switch (c->processor_id & 0xff00) { case PRID_IMP_AU1_REV1: case PRID_IMP_AU1_REV2: + c->cputype = CPU_ALCHEMY; switch ((c->processor_id >> 24) & 0xff) { case 0: - c->cputype = CPU_AU1000; __cpu_name[cpu] = "Au1000"; break; case 1: - c->cputype = CPU_AU1500; __cpu_name[cpu] = "Au1500"; break; case 2: - c->cputype = CPU_AU1100; __cpu_name[cpu] = "Au1100"; break; case 3: - c->cputype = CPU_AU1550; __cpu_name[cpu] = "Au1550"; break; case 4: - c->cputype = CPU_AU1200; __cpu_name[cpu] = "Au1200"; - if ((c->processor_id & 0xff) == 2) { - c->cputype = CPU_AU1250; + if ((c->processor_id & 0xff) == 2) __cpu_name[cpu] = "Au1250"; - } break; case 5: - c->cputype = CPU_AU1210; __cpu_name[cpu] = "Au1210"; break; default: - panic("Unknown Au Core!"); + __cpu_name[cpu] = "Au1xxx"; break; } break; diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 871e828..58d9075 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1026,13 +1026,7 @@ static void __cpuinit probe_pcache(void) c->icache.flags |= MIPS_CACHE_VTAG; break; - case CPU_AU1000: - case CPU_AU1500: - case CPU_AU1100: - case CPU_AU1550: - case CPU_AU1200: - case CPU_AU1210: - case CPU_AU1250: + case CPU_ALCHEMY: c->icache.flags |= MIPS_CACHE_IC_F_DC; break; } @@ -1244,7 +1238,7 @@ void au1x00_fixup_config_od(void) /* * Au1100 errata actually keeps silence about this bit, so we set it * just in case for those revisions that require it to be set according - * to arch/mips/au1000/common/cputable.c + * to the (now gone) cpu table. */ case 0x02030200: /* Au1100 AB */ case 0x02030201: /* Au1100 BA */ @@ -1314,11 +1308,10 @@ static void __cpuinit coherency_setup(void) break; /* * We need to catch the early Alchemy SOCs with - * the write-only co_config.od bit and set it back to one... + * the write-only co_config.od bit and set it back to one on: + * Au1000 rev DA, HA, HB; Au1100 AB, BA, BC, Au1500 AB */ - case CPU_AU1000: /* rev. DA, HA, HB */ - case CPU_AU1100: /* rev. AB, BA, BC ?? */ - case CPU_AU1500: /* rev. AB */ + case CPU_ALCHEMY: au1x00_fixup_config_od(); break; diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index f335cf6..122c9c1 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -292,13 +292,7 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l, case CPU_R4300: case CPU_5KC: case CPU_TX49XX: - case CPU_AU1000: - case CPU_AU1100: - case CPU_AU1500: - case CPU_AU1550: - case CPU_AU1200: - case CPU_AU1210: - case CPU_AU1250: + case CPU_ALCHEMY: case CPU_PR4450: uasm_i_nop(p); tlbw(p); |