diff options
| author | Huacai Chen <chenhc@lemote.com> | 2014-06-26 11:41:27 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-07-30 21:46:00 +0200 |
| commit | 140e39c1e3d29f50e161f55cca60f60b80408c2a (patch) | |
| tree | cf4fc2a0a1896dd80667ead4382012c308ba73ca /arch/mips/loongson/common/env.c | |
| parent | bda4584cd943d7bb6cf677a8d694700c1984cf3e (diff) | |
| download | talos-op-linux-140e39c1e3d29f50e161f55cca60f60b80408c2a.tar.gz talos-op-linux-140e39c1e3d29f50e161f55cca60f60b80408c2a.zip | |
MIPS: Loongson: Modify ChipConfig register definition
This patch is prepared for Multi-chip interconnection. Since each chip
has a ChipConfig register, LOONGSON_CHIPCFG should be an array.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
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/7185/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/loongson/common/env.c')
| -rw-r--r-- | arch/mips/loongson/common/env.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c index 0c543eae49bf..dc592412f764 100644 --- a/arch/mips/loongson/common/env.c +++ b/arch/mips/loongson/common/env.c @@ -27,6 +27,8 @@ EXPORT_SYMBOL(cpu_clock_freq); struct efi_memory_map_loongson *loongson_memmap; struct loongson_system_configuration loongson_sysconf; +u64 loongson_chipcfg[MAX_PACKAGES] = {0xffffffffbfc00180}; + #define parse_even_earlier(res, option, p) \ do { \ unsigned int tmp __maybe_unused; \ @@ -77,6 +79,15 @@ void __init prom_init_env(void) cpu_clock_freq = ecpu->cpu_clock_freq; loongson_sysconf.cputype = ecpu->cputype; + if (ecpu->cputype == Loongson_3A) { + loongson_chipcfg[0] = 0x900000001fe00180; + loongson_chipcfg[1] = 0x900010001fe00180; + loongson_chipcfg[2] = 0x900020001fe00180; + loongson_chipcfg[3] = 0x900030001fe00180; + } else { + loongson_chipcfg[0] = 0x900000001fe00180; + } + loongson_sysconf.nr_cpus = ecpu->nr_cpus; if (ecpu->nr_cpus > NR_CPUS || ecpu->nr_cpus == 0) loongson_sysconf.nr_cpus = NR_CPUS; |
