diff options
| author | Jayachandran C <jchandra@broadcom.com> | 2013-08-11 14:43:54 +0530 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-09-03 23:22:19 +0200 |
| commit | 4ca86a2ff37ce92b6875a184a97a20188704cb6c (patch) | |
| tree | bb9b5608a7031cd64a5f24dfcd1abdebaf44507e /arch/mips/include | |
| parent | 13314a91f0588546023570cfc9a1cf4ca5027c75 (diff) | |
MIPS: Netlogic: Add support for XLP2XX
XLP2XX is first in the series of 28nm XLPII processors.
The changes are to:
* Add processor ID for XLP2XX to asm/cpu.h and kernel/cpu-probe.c.
* Add a cpu_is_xlpii() function to check for XLPII processors.
* Update xlp_mmu_init() to use config4 to enable extended TLB.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/netlogic/xlp-hal/xlp.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index c19861518c3..71b9f1998be 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -179,6 +179,7 @@ #define PRID_IMP_NETLOGIC_XLP8XX 0x1000 #define PRID_IMP_NETLOGIC_XLP3XX 0x1100 +#define PRID_IMP_NETLOGIC_XLP2XX 0x1200 /* * Definitions for 7:0 on legacy processors diff --git a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h index d59cdd69496..7a4a5142bbc 100644 --- a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h +++ b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h @@ -64,5 +64,12 @@ int xlp_get_dram_map(int n, uint64_t *dram_map); /* Device tree related */ void *xlp_dt_init(void *fdtp); +static inline int cpu_is_xlpii(void) +{ + int chip = read_c0_prid() & 0xff00; + + return chip == PRID_IMP_NETLOGIC_XLP2XX; +} + #endif /* !__ASSEMBLY__ */ #endif /* _ASM_NLM_XLP_H */ |