diff options
| author | Jacob Pan <jacob.jun.pan@linux.intel.com> | 2010-05-19 12:01:24 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-05-19 13:32:29 -0700 |
| commit | a0c173bd8a3fd0541be8e4ef962170e48d8811c7 (patch) | |
| tree | 514845a2d34bac5816b2a6cbdfa4cb2674b99434 /arch/x86/include/asm/mrst.h | |
| parent | 1dedefd1a066a795a87afca9c0236e1a94de9bf6 (diff) | |
x86, mrst: add cpu type detection
Medfield is the follow-up of Moorestown, it is treated under the same
HW sub-architecture. However, we do need to know the CPU type in order
for some of the driver to act accordingly.
We also have different optimal clock configuration for each CPU type.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
LKML-Reference: <1274295685-6774-3-git-send-email-jacob.jun.pan@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/mrst.h')
| -rw-r--r-- | arch/x86/include/asm/mrst.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h index 451d30e7f62d..dc5c8500bfc7 100644 --- a/arch/x86/include/asm/mrst.h +++ b/arch/x86/include/asm/mrst.h @@ -11,8 +11,27 @@ #ifndef _ASM_X86_MRST_H #define _ASM_X86_MRST_H extern int pci_mrst_init(void); +extern int mrst_identify_cpu(void); int __init sfi_parse_mrtc(struct sfi_table_header *table); +/* + * Medfield is the follow-up of Moorestown, it combines two chip solution into + * one. Other than that it also added always-on and constant tsc and lapic + * timers. Medfield is the platform name, and the chip name is called Penwell + * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be + * identified via MSRs. + */ +enum mrst_cpu_type { + MRST_CPU_CHIP_LINCROFT = 1, + MRST_CPU_CHIP_PENWELL, +}; + +enum mrst_timer_options { + MRST_TIMER_DEFAULT, + MRST_TIMER_APBT_ONLY, + MRST_TIMER_LAPIC_APBT, +}; + #define SFI_MTMR_MAX_NUM 8 #define SFI_MRTC_MAX 8 |