diff options
Diffstat (limited to 'arch/arm/mach-omap2/prm.h')
| -rw-r--r-- | arch/arm/mach-omap2/prm.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h index 39d562169d1..c30ab5de8d1 100644 --- a/arch/arm/mach-omap2/prm.h +++ b/arch/arm/mach-omap2/prm.h @@ -52,5 +52,58 @@ #define OMAP_POWERSTATE_SHIFT 0 #define OMAP_POWERSTATE_MASK (0x3 << 0) +/* + * Standardized OMAP reset source bits + * + * To the extent these happen to match the hardware register bit + * shifts, it's purely coincidental. Used by omap-wdt.c. + * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever + * there are any bits remaining in the global PRM_RSTST register that + * haven't been identified, or when the PRM code for the current SoC + * doesn't know how to interpret the register. + */ +#define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0 +#define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1 +#define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2 +#define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3 +#define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4 +#define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5 +#define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6 +#define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7 +#define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8 +#define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9 +#define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10 +#define OMAP_C2C_RST_SRC_ID_SHIFT 11 +#define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12 + +#ifndef __ASSEMBLER__ + +/** + * struct prm_reset_src_map - map register bitshifts to standard bitshifts + * @reg_shift: bitshift in the PRM reset source register + * @std_shift: bitshift equivalent in the standard reset source list + * + * The fields are signed because -1 is used as a terminator. + */ +struct prm_reset_src_map { + s8 reg_shift; + s8 std_shift; +}; + +/** + * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations + * @read_reset_sources: ptr to the Soc PRM-specific get_reset_source impl + */ +struct prm_ll_data { + u32 (*read_reset_sources)(void); +}; + +extern int prm_register(struct prm_ll_data *pld); +extern int prm_unregister(struct prm_ll_data *pld); + +extern u32 prm_read_reset_sources(void); + +#endif + #endif |