MIPS: Loongson: Fix the write-combine CCA value setting

All Loongson-2/3 processors support _CACHE_UNCACHED_ACCELERATED, not
only Loongson-3A.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/8319/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 94c4a0c0a577909849326dd38999d30ef017ab99..08dc945f760862d2aad9a33fb1e4d718bdcde015 100644 (file)
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -765,7 +765,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
                        break;
                case PRID_REV_LOONGSON3A:
                        c->cputype = CPU_LOONGSON3;
-                       c->writecombine = _CACHE_UNCACHED_ACCELERATED;
                        __cpu_name[cpu] = "ICT Loongson-3";
                        set_elf_platform(cpu, "loongson3a");
                        break;
@@ -782,6 +781,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
                             MIPS_CPU_FPU | MIPS_CPU_LLSC |
                             MIPS_CPU_32FPR;
                c->tlbsize = 64;
+               c->writecombine = _CACHE_UNCACHED_ACCELERATED;
                break;
        case PRID_IMP_LOONGSON_32:  /* Loongson-1 */
                decode_configs(c);