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
 20static 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
 33static 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
 54static 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
 62static 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
 74static 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
 82static 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
 91static 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
114static 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
125static int am43xx_check_vcvp(void)
126{
127	return 0;
128}
129
130void __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}