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-rw-r--r--include/asm-powerpc/reg.h9
-rw-r--r--include/asm-powerpc/smu.h60
2 files changed, 67 insertions, 2 deletions
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index da848412f11b..489cf4c99c21 100644
--- a/include/asm-powerpc/reg.h
+++ b/include/asm-powerpc/reg.h
@@ -396,6 +396,9 @@
396#define SPRN_VRSAVE 0x100 /* Vector Register Save Register */ 396#define SPRN_VRSAVE 0x100 /* Vector Register Save Register */
397#define SPRN_XER 0x001 /* Fixed Point Exception Register */ 397#define SPRN_XER 0x001 /* Fixed Point Exception Register */
398 398
399#define SPRN_SCOMC 0x114 /* SCOM Access Control */
400#define SPRN_SCOMD 0x115 /* SCOM Access DATA */
401
399/* Performance monitor SPRs */ 402/* Performance monitor SPRs */
400#ifdef CONFIG_PPC64 403#ifdef CONFIG_PPC64
401#define SPRN_MMCR0 795 404#define SPRN_MMCR0 795
@@ -594,7 +597,11 @@ static inline void ppc64_runlatch_off(void)
594 mtspr(SPRN_CTRLT, ctrl); 597 mtspr(SPRN_CTRLT, ctrl);
595 } 598 }
596} 599}
597#endif 600
601extern unsigned long scom970_read(unsigned int address);
602extern void scom970_write(unsigned int address, unsigned long value);
603
604#endif /* CONFIG_PPC64 */
598 605
599#define __get_SP() ({unsigned long sp; \ 606#define __get_SP() ({unsigned long sp; \
600 asm volatile("mr %0,1": "=r" (sp)); sp;}) 607 asm volatile("mr %0,1": "=r" (sp)); sp;})
diff --git a/include/asm-powerpc/smu.h b/include/asm-powerpc/smu.h
index dee8eefe47bc..959bad660233 100644
--- a/include/asm-powerpc/smu.h
+++ b/include/asm-powerpc/smu.h
@@ -144,7 +144,11 @@
144 * - lenght 8 ("VSLEWxyz") has 3 additional bytes appended, and is 144 * - lenght 8 ("VSLEWxyz") has 3 additional bytes appended, and is
145 * used to set the voltage slewing point. The SMU replies with "DONE" 145 * used to set the voltage slewing point. The SMU replies with "DONE"
146 * I yet have to figure out their exact meaning of those 3 bytes in 146 * I yet have to figure out their exact meaning of those 3 bytes in
147 * both cases. 147 * both cases. They seem to be:
148 * x = processor mask
149 * y = op. point index
150 * z = processor freq. step index
151 * I haven't yet decyphered result codes
148 * 152 *
149 */ 153 */
150#define SMU_CMD_POWER_COMMAND 0xaa 154#define SMU_CMD_POWER_COMMAND 0xaa
@@ -333,6 +337,60 @@ extern int smu_queue_i2c(struct smu_i2c_cmd *cmd);
333 337
334#endif /* __KERNEL__ */ 338#endif /* __KERNEL__ */
335 339
340
341/*
342 * - SMU "sdb" partitions informations -
343 */
344
345
346/*
347 * Partition header format
348 */
349struct smu_sdbp_header {
350 __u8 id;
351 __u8 len;
352 __u8 version;
353 __u8 flags;
354};
355
356/*
357 * 32 bits integers are usually encoded with 2x16 bits swapped,
358 * this demangles them
359 */
360#define SMU_U32_MIX(x) ((((x) << 16) & 0xffff0000u) | (((x) >> 16) & 0xffffu))
361
362/* This is the definition of the SMU sdb-partition-0x12 table (called
363 * CPU F/V/T operating points in Darwin). The definition for all those
364 * SMU tables should be moved to some separate file
365 */
366#define SMU_SDB_FVT_ID 0x12
367
368struct smu_sdbp_fvt {
369 __u32 sysclk; /* Base SysClk frequency in Hz for
370 * this operating point
371 */
372 __u8 pad;
373 __u8 maxtemp; /* Max temp. supported by this
374 * operating point
375 */
376
377 __u16 volts[3]; /* CPU core voltage for the 3
378 * PowerTune modes, a mode with
379 * 0V = not supported.
380 */
381};
382
383#ifdef __KERNEL__
384/*
385 * This returns the pointer to an SMU "sdb" partition data or NULL
386 * if not found. The data format is described below
387 */
388extern struct smu_sdbp_header *smu_get_sdb_partition(int id,
389 unsigned int *size);
390
391#endif /* __KERNEL__ */
392
393
336/* 394/*
337 * - Userland interface - 395 * - Userland interface -
338 */ 396 */