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 "cm-regbits-44xx.h" 21 #include "prm-regbits-34xx.h" 22 #include "prm-regbits-44xx.h" 23 24 /* 25 * OMAP3 and OMAP4 specific register bit initialisations 26 * Notice that the names here are not according to each power 27 * domain but the bit mapping used applies to all of them 28 */ 29 /* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */ 30 #define OMAP_MEM0_ONSTATE_MASK OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK 31 #define OMAP_MEM1_ONSTATE_MASK OMAP3430_L1FLATMEMONSTATE_MASK 32 #define OMAP_MEM2_ONSTATE_MASK OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK 33 #define OMAP_MEM3_ONSTATE_MASK OMAP3430_L2FLATMEMONSTATE_MASK 34 #define OMAP_MEM4_ONSTATE_MASK OMAP4430_OCP_NRET_BANK_ONSTATE_MASK 35 36 /* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */ 37 #define OMAP_MEM0_RETSTATE_MASK OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK 38 #define OMAP_MEM1_RETSTATE_MASK OMAP3430_L1FLATMEMRETSTATE_MASK 39 #define OMAP_MEM2_RETSTATE_MASK OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK 40 #define OMAP_MEM3_RETSTATE_MASK OMAP3430_L2FLATMEMRETSTATE_MASK 41 #define OMAP_MEM4_RETSTATE_MASK OMAP4430_OCP_NRET_BANK_RETSTATE_MASK 42 43 /* OMAP3 and OMAP4 Memory Status bits */ 44 #define OMAP_MEM0_STATEST_MASK OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK 45 #define OMAP_MEM1_STATEST_MASK OMAP3430_L1FLATMEMSTATEST_MASK 46 #define OMAP_MEM2_STATEST_MASK OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK 47 #define OMAP_MEM3_STATEST_MASK OMAP3430_L2FLATMEMSTATEST_MASK 48 #define OMAP_MEM4_STATEST_MASK OMAP4430_OCP_NRET_BANK_STATEST_MASK 49 50 /* Common Internal functions used across OMAP rev's*/ 51 u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank) 52 { 53 switch (bank) { 54 case 0: 55 return OMAP_MEM0_ONSTATE_MASK; 56 case 1: 57 return OMAP_MEM1_ONSTATE_MASK; 58 case 2: 59 return OMAP_MEM2_ONSTATE_MASK; 60 case 3: 61 return OMAP_MEM3_ONSTATE_MASK; 62 case 4: 63 return OMAP_MEM4_ONSTATE_MASK; 64 default: 65 WARN_ON(1); /* should never happen */ 66 return -EEXIST; 67 } 68 return 0; 69 } 70 71 u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank) 72 { 73 switch (bank) { 74 case 0: 75 return OMAP_MEM0_RETSTATE_MASK; 76 case 1: 77 return OMAP_MEM1_RETSTATE_MASK; 78 case 2: 79 return OMAP_MEM2_RETSTATE_MASK; 80 case 3: 81 return OMAP_MEM3_RETSTATE_MASK; 82 case 4: 83 return OMAP_MEM4_RETSTATE_MASK; 84 default: 85 WARN_ON(1); /* should never happen */ 86 return -EEXIST; 87 } 88 return 0; 89 } 90 91 u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank) 92 { 93 switch (bank) { 94 case 0: 95 return OMAP_MEM0_STATEST_MASK; 96 case 1: 97 return OMAP_MEM1_STATEST_MASK; 98 case 2: 99 return OMAP_MEM2_STATEST_MASK; 100 case 3: 101 return OMAP_MEM3_STATEST_MASK; 102 case 4: 103 return OMAP_MEM4_STATEST_MASK; 104 default: 105 WARN_ON(1); /* should never happen */ 106 return -EEXIST; 107 } 108 return 0; 109 } 110 111