diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/reg.h | 9 | ||||
| -rw-r--r-- | include/asm-powerpc/smu.h | 60 |
2 files changed, 67 insertions, 2 deletions
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index da848412f11..489cf4c99c2 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -396,6 +396,9 @@ #define SPRN_VRSAVE 0x100 /* Vector Register Save Register */ #define SPRN_XER 0x001 /* Fixed Point Exception Register */ +#define SPRN_SCOMC 0x114 /* SCOM Access Control */ +#define SPRN_SCOMD 0x115 /* SCOM Access DATA */ + /* Performance monitor SPRs */ #ifdef CONFIG_PPC64 #define SPRN_MMCR0 795 @@ -594,7 +597,11 @@ static inline void ppc64_runlatch_off(void) mtspr(SPRN_CTRLT, ctrl); } } -#endif + +extern unsigned long scom970_read(unsigned int address); +extern void scom970_write(unsigned int address, unsigned long value); + +#endif /* CONFIG_PPC64 */ #define __get_SP() ({unsigned long sp; \ asm volatile("mr %0,1": "=r" (sp)); sp;}) diff --git a/include/asm-powerpc/smu.h b/include/asm-powerpc/smu.h index dee8eefe47b..959bad66023 100644 --- a/include/asm-powerpc/smu.h +++ b/include/asm-powerpc/smu.h @@ -144,7 +144,11 @@ * - lenght 8 ("VSLEWxyz") has 3 additional bytes appended, and is * used to set the voltage slewing point. The SMU replies with "DONE" * I yet have to figure out their exact meaning of those 3 bytes in - * both cases. + * both cases. They seem to be: + * x = processor mask + * y = op. point index + * z = processor freq. step index + * I haven't yet decyphered result codes * */ #define SMU_CMD_POWER_COMMAND 0xaa @@ -333,6 +337,60 @@ extern int smu_queue_i2c(struct smu_i2c_cmd *cmd); #endif /* __KERNEL__ */ + +/* + * - SMU "sdb" partitions informations - + */ + + +/* + * Partition header format + */ +struct smu_sdbp_header { + __u8 id; + __u8 len; + __u8 version; + __u8 flags; +}; + +/* + * 32 bits integers are usually encoded with 2x16 bits swapped, + * this demangles them + */ +#define SMU_U32_MIX(x) ((((x) << 16) & 0xffff0000u) | (((x) >> 16) & 0xffffu)) + +/* This is the definition of the SMU sdb-partition-0x12 table (called + * CPU F/V/T operating points in Darwin). The definition for all those + * SMU tables should be moved to some separate file + */ +#define SMU_SDB_FVT_ID 0x12 + +struct smu_sdbp_fvt { + __u32 sysclk; /* Base SysClk frequency in Hz for + * this operating point + */ + __u8 pad; + __u8 maxtemp; /* Max temp. supported by this + * operating point + */ + + __u16 volts[3]; /* CPU core voltage for the 3 + * PowerTune modes, a mode with + * 0V = not supported. + */ +}; + +#ifdef __KERNEL__ +/* + * This returns the pointer to an SMU "sdb" partition data or NULL + * if not found. The data format is described below + */ +extern struct smu_sdbp_header *smu_get_sdb_partition(int id, + unsigned int *size); + +#endif /* __KERNEL__ */ + + /* * - Userland interface - */ |