1 /* 2 * Common powerdomain framework functions 3 * 4 * Copyright (C) 2010-2011 Texas Instruments, Inc. 5 * Copyright (C) 2010 Nokia Corporation 6 * 7 * Derived from mach-omap2/powerdomain.c written by Paul Walmsley 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14 #include <linux/errno.h> 15 #include <linux/kernel.h> 16 #include <linux/bug.h> 17 #include "pm.h" 18 #include "cm.h" 19 #include "cm-regbits-34xx.h" 20 #include "prm-regbits-34xx.h" 21 #include "prm-regbits-44xx.h" 22 23 /* 24 * OMAP3 and OMAP4 specific register bit initialisations 25 * Notice that the names here are not according to each power 26 * domain but the bit mapping used applies to all of them 27 */ 28 /* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */ 29 #define OMAP_MEM0_ONSTATE_MASK OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK 30 #define OMAP_MEM1_ONSTATE_MASK OMAP3430_L1FLATMEMONSTATE_MASK 31 #define OMAP_MEM2_ONSTATE_MASK OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK 32 #define OMAP_MEM3_ONSTATE_MASK OMAP3430_L2FLATMEMONSTATE_MASK 33 #define OMAP_MEM4_ONSTATE_MASK OMAP4430_OCP_NRET_BANK_ONSTATE_MASK 34 35 /* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */ 36 #define OMAP_MEM0_RETSTATE_MASK OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK 37 #define OMAP_MEM1_RETSTATE_MASK OMAP3430_L1FLATMEMRETSTATE_MASK 38 #define OMAP_MEM2_RETSTATE_MASK OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK 39 #define OMAP_MEM3_RETSTATE_MASK OMAP3430_L2FLATMEMRETSTATE_MASK 40 #define OMAP_MEM4_RETSTATE_MASK OMAP4430_OCP_NRET_BANK_RETSTATE_MASK 41 42 /* OMAP3 and OMAP4 Memory Status bits */ 43 #define OMAP_MEM0_STATEST_MASK OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK 44 #define OMAP_MEM1_STATEST_MASK OMAP3430_L1FLATMEMSTATEST_MASK 45 #define OMAP_MEM2_STATEST_MASK OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK 46 #define OMAP_MEM3_STATEST_MASK OMAP3430_L2FLATMEMSTATEST_MASK 47 #define OMAP_MEM4_STATEST_MASK OMAP4430_OCP_NRET_BANK_STATEST_MASK 48 49 /* Common Internal functions used across OMAP rev's*/ 50 u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank) 51 { 52 switch (bank) { 53 case 0: 54 return OMAP_MEM0_ONSTATE_MASK; 55 case 1: 56 return OMAP_MEM1_ONSTATE_MASK; 57 case 2: 58 return OMAP_MEM2_ONSTATE_MASK; 59 case 3: 60 return OMAP_MEM3_ONSTATE_MASK; 61 case 4: 62 return OMAP_MEM4_ONSTATE_MASK; 63 default: 64 WARN_ON(1); /* should never happen */ 65 return -EEXIST; 66 } 67 return 0; 68 } 69 70 u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank) 71 { 72 switch (bank) { 73 case 0: 74 return OMAP_MEM0_RETSTATE_MASK; 75 case 1: 76 return OMAP_MEM1_RETSTATE_MASK; 77 case 2: 78 return OMAP_MEM2_RETSTATE_MASK; 79 case 3: 80 return OMAP_MEM3_RETSTATE_MASK; 81 case 4: 82 return OMAP_MEM4_RETSTATE_MASK; 83 default: 84 WARN_ON(1); /* should never happen */ 85 return -EEXIST; 86 } 87 return 0; 88 } 89 90 u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank) 91 { 92 switch (bank) { 93 case 0: 94 return OMAP_MEM0_STATEST_MASK; 95 case 1: 96 return OMAP_MEM1_STATEST_MASK; 97 case 2: 98 return OMAP_MEM2_STATEST_MASK; 99 case 3: 100 return OMAP_MEM3_STATEST_MASK; 101 case 4: 102 return OMAP_MEM4_STATEST_MASK; 103 default: 104 WARN_ON(1); /* should never happen */ 105 return -EEXIST; 106 } 107 return 0; 108 } 109 110