| Ambresh K | eadc62f | 2013-10-12 15:45:54 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * AM43xx Power domains framework |
| 3 | * |
| 4 | * Copyright (C) 2013 Texas Instruments, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/init.h> |
| 13 | |
| 14 | #include "powerdomain.h" |
| 15 | |
| 16 | #include "prcm-common.h" |
| 17 | #include "prcm44xx.h" |
| 18 | #include "prcm43xx.h" |
| 19 | |
| 20 | static struct powerdomain gfx_43xx_pwrdm = { |
| 21 | .name = "gfx_pwrdm", |
| 22 | .voltdm = { .name = "core" }, |
| 23 | .prcm_offs = AM43XX_PRM_GFX_INST, |
| 24 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 25 | .pwrsts = PWRSTS_OFF_ON, |
| 26 | .banks = 1, |
| 27 | .pwrsts_mem_on = { |
| 28 | [0] = PWRSTS_ON, /* gfx_mem */ |
| 29 | }, |
| 30 | .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, |
| 31 | }; |
| 32 | |
| 33 | static struct powerdomain mpu_43xx_pwrdm = { |
| 34 | .name = "mpu_pwrdm", |
| 35 | .voltdm = { .name = "mpu" }, |
| 36 | .prcm_offs = AM43XX_PRM_MPU_INST, |
| 37 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 38 | .pwrsts = PWRSTS_OFF_RET_ON, |
| 39 | .pwrsts_logic_ret = PWRSTS_OFF_RET, |
| 40 | .banks = 3, |
| 41 | .pwrsts_mem_ret = { |
| 42 | [0] = PWRSTS_OFF_RET, /* mpu_l1 */ |
| 43 | [1] = PWRSTS_OFF_RET, /* mpu_l2 */ |
| 44 | [2] = PWRSTS_OFF_RET, /* mpu_ram */ |
| 45 | }, |
| 46 | .pwrsts_mem_on = { |
| 47 | [0] = PWRSTS_ON, /* mpu_l1 */ |
| 48 | [1] = PWRSTS_ON, /* mpu_l2 */ |
| 49 | [2] = PWRSTS_ON, /* mpu_ram */ |
| 50 | }, |
| 51 | .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, |
| 52 | }; |
| 53 | |
| 54 | static struct powerdomain rtc_43xx_pwrdm = { |
| 55 | .name = "rtc_pwrdm", |
| 56 | .voltdm = { .name = "rtc" }, |
| 57 | .prcm_offs = AM43XX_PRM_RTC_INST, |
| 58 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 59 | .pwrsts = PWRSTS_ON, |
| 60 | }; |
| 61 | |
| 62 | static struct powerdomain wkup_43xx_pwrdm = { |
| 63 | .name = "wkup_pwrdm", |
| 64 | .voltdm = { .name = "core" }, |
| 65 | .prcm_offs = AM43XX_PRM_WKUP_INST, |
| 66 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 67 | .pwrsts = PWRSTS_ON, |
| 68 | .banks = 1, |
| 69 | .pwrsts_mem_on = { |
| 70 | [0] = PWRSTS_ON, /* debugss_mem */ |
| 71 | }, |
| 72 | }; |
| 73 | |
| 74 | static struct powerdomain tamper_43xx_pwrdm = { |
| 75 | .name = "tamper_pwrdm", |
| 76 | .voltdm = { .name = "tamper" }, |
| 77 | .prcm_offs = AM43XX_PRM_TAMPER_INST, |
| 78 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 79 | .pwrsts = PWRSTS_ON, |
| 80 | }; |
| 81 | |
| 82 | static struct powerdomain cefuse_43xx_pwrdm = { |
| 83 | .name = "cefuse_pwrdm", |
| 84 | .voltdm = { .name = "core" }, |
| 85 | .prcm_offs = AM43XX_PRM_CEFUSE_INST, |
| 86 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 87 | .pwrsts = PWRSTS_OFF_ON, |
| 88 | .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, |
| 89 | }; |
| 90 | |
| 91 | static struct powerdomain per_43xx_pwrdm = { |
| 92 | .name = "per_pwrdm", |
| 93 | .voltdm = { .name = "core" }, |
| 94 | .prcm_offs = AM43XX_PRM_PER_INST, |
| 95 | .prcm_partition = AM43XX_PRM_PARTITION, |
| 96 | .pwrsts = PWRSTS_OFF_RET_ON, |
| 97 | .pwrsts_logic_ret = PWRSTS_OFF_RET, |
| 98 | .banks = 4, |
| 99 | .pwrsts_mem_ret = { |
| 100 | [0] = PWRSTS_OFF_RET, /* icss_mem */ |
| 101 | [1] = PWRSTS_OFF_RET, /* per_mem */ |
| 102 | [2] = PWRSTS_OFF_RET, /* ram1_mem */ |
| 103 | [3] = PWRSTS_OFF_RET, /* ram2_mem */ |
| 104 | }, |
| 105 | .pwrsts_mem_on = { |
| 106 | [0] = PWRSTS_ON, /* icss_mem */ |
| 107 | [1] = PWRSTS_ON, /* per_mem */ |
| 108 | [2] = PWRSTS_ON, /* ram1_mem */ |
| 109 | [3] = PWRSTS_ON, /* ram2_mem */ |
| 110 | }, |
| 111 | .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, |
| 112 | }; |
| 113 | |
| 114 | static struct powerdomain *powerdomains_am43xx[] __initdata = { |
| 115 | &gfx_43xx_pwrdm, |
| 116 | &mpu_43xx_pwrdm, |
| 117 | &rtc_43xx_pwrdm, |
| 118 | &wkup_43xx_pwrdm, |
| 119 | &tamper_43xx_pwrdm, |
| 120 | &cefuse_43xx_pwrdm, |
| 121 | &per_43xx_pwrdm, |
| 122 | NULL |
| 123 | }; |
| 124 | |
| 125 | static int am43xx_check_vcvp(void) |
| 126 | { |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | void __init am43xx_powerdomains_init(void) |
| 131 | { |
| 132 | omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp; |
| 133 | pwrdm_register_platform_funcs(&omap4_pwrdm_operations); |
| 134 | pwrdm_register_pwrdms(powerdomains_am43xx); |
| 135 | pwrdm_complete_init(); |
| 136 | } |