169d88a00SPaul Walmsley /* 259fb659bSPaul Walmsley * OMAP2+ Clock Management prototypes 369d88a00SPaul Walmsley * 4d9a16f9aSPaul Walmsley * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc. 59b47267fSRajendra Nayak * Copyright (C) 2007-2009 Nokia Corporation 669d88a00SPaul Walmsley * 769d88a00SPaul Walmsley * Written by Paul Walmsley 869d88a00SPaul Walmsley * 969d88a00SPaul Walmsley * This program is free software; you can redistribute it and/or modify 1069d88a00SPaul Walmsley * it under the terms of the GNU General Public License version 2 as 1169d88a00SPaul Walmsley * published by the Free Software Foundation. 1269d88a00SPaul Walmsley */ 1359fb659bSPaul Walmsley #ifndef __ARCH_ASM_MACH_OMAP2_CM_H 1459fb659bSPaul Walmsley #define __ARCH_ASM_MACH_OMAP2_CM_H 1569d88a00SPaul Walmsley 16d9e6625cSBenoit Cousson /* 17d9e6625cSBenoit Cousson * MAX_MODULE_READY_TIME: max duration in microseconds to wait for the 18d9e6625cSBenoit Cousson * PRCM to request that a module exit the inactive state in the case of 19d9e6625cSBenoit Cousson * OMAP2 & 3. 20d9e6625cSBenoit Cousson * In the case of OMAP4 this is the max duration in microseconds for the 21d9e6625cSBenoit Cousson * module to reach the functionnal state from an inactive state. 22d9e6625cSBenoit Cousson */ 23d9e6625cSBenoit Cousson #define MAX_MODULE_READY_TIME 2000 24d9e6625cSBenoit Cousson 25d9a16f9aSPaul Walmsley # ifndef __ASSEMBLER__ 26d9a16f9aSPaul Walmsley extern void __iomem *cm_base; 27d9a16f9aSPaul Walmsley extern void __iomem *cm2_base; 28d9a16f9aSPaul Walmsley extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2); 29d9a16f9aSPaul Walmsley # endif 30d9a16f9aSPaul Walmsley 31b8f15b7eSPaul Walmsley /* 32b8f15b7eSPaul Walmsley * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for 33b8f15b7eSPaul Walmsley * the PRCM to request that a module enter the inactive state in the 34b8f15b7eSPaul Walmsley * case of OMAP2 & 3. In the case of OMAP4 this is the max duration 35b8f15b7eSPaul Walmsley * in microseconds for the module to reach the inactive state from 36b8f15b7eSPaul Walmsley * a functional state. 37b8f15b7eSPaul Walmsley * XXX FSUSB on OMAP4430 takes ~4ms to idle after reset during 38b8f15b7eSPaul Walmsley * kernel init. 39b8f15b7eSPaul Walmsley */ 40b8f15b7eSPaul Walmsley #define MAX_MODULE_DISABLE_TIME 5000 41b8f15b7eSPaul Walmsley 4221325b25SPaul Walmsley # ifndef __ASSEMBLER__ 4321325b25SPaul Walmsley 4421325b25SPaul Walmsley /** 4521325b25SPaul Walmsley * struct cm_ll_data - fn ptrs to per-SoC CM function implementations 46c4ceedcbSPaul Walmsley * @split_idlest_reg: ptr to the SoC CM-specific split_idlest_reg impl 47c4ceedcbSPaul Walmsley * @wait_module_ready: ptr to the SoC CM-specific wait_module_ready impl 4821325b25SPaul Walmsley */ 49c4ceedcbSPaul Walmsley struct cm_ll_data { 50c4ceedcbSPaul Walmsley int (*split_idlest_reg)(void __iomem *idlest_reg, s16 *prcm_inst, 51c4ceedcbSPaul Walmsley u8 *idlest_reg_id); 52021b6ff0STero Kristo int (*wait_module_ready)(u8 part, s16 prcm_mod, u16 idlest_reg, 53021b6ff0STero Kristo u8 idlest_shift); 54c4ceedcbSPaul Walmsley }; 55c4ceedcbSPaul Walmsley 56c4ceedcbSPaul Walmsley extern int cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst, 57c4ceedcbSPaul Walmsley u8 *idlest_reg_id); 58021b6ff0STero Kristo int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg, 59021b6ff0STero Kristo u8 idlest_shift); 6021325b25SPaul Walmsley extern int cm_register(struct cm_ll_data *cld); 6121325b25SPaul Walmsley extern int cm_unregister(struct cm_ll_data *cld); 6221325b25SPaul Walmsley 6321325b25SPaul Walmsley # endif 6421325b25SPaul Walmsley 6569d88a00SPaul Walmsley #endif 66