1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * AM43xx Power domains framework
  4 *
  5 * Copyright (C) 2013 Texas Instruments, Inc.
  6 */
  7
  8#include <linux/kernel.h>
  9#include <linux/init.h>
 10
 11#include "powerdomain.h"
 12
 13#include "prcm-common.h"
 14#include "prcm44xx.h"
 15#include "prcm43xx.h"
 16
 17static struct powerdomain gfx_43xx_pwrdm = {
 18	.name		  = "gfx_pwrdm",
 19	.voltdm		  = { .name = "core" },
 20	.prcm_offs	  = AM43XX_PRM_GFX_INST,
 21	.prcm_partition	  = AM43XX_PRM_PARTITION,
 22	.pwrsts		  = PWRSTS_OFF_ON,
 23	.banks		  = 1,
 24	.pwrsts_mem_on	= {
 25		[0] = PWRSTS_ON,	/* gfx_mem */
 26	},
 27	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
 28};
 29
 30static struct powerdomain mpu_43xx_pwrdm = {
 31	.name		  = "mpu_pwrdm",
 32	.voltdm		  = { .name = "mpu" },
 33	.prcm_offs	  = AM43XX_PRM_MPU_INST,
 34	.prcm_partition	  = AM43XX_PRM_PARTITION,
 35	.pwrsts		  = PWRSTS_OFF_RET_ON,
 36	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 37	.banks		  = 3,
 38	.pwrsts_mem_ret	= {
 39		[0] = PWRSTS_OFF_RET,	/* mpu_l1 */
 40		[1] = PWRSTS_OFF_RET,	/* mpu_l2 */
 41		[2] = PWRSTS_OFF_RET,	/* mpu_ram */
 42	},
 43	.pwrsts_mem_on	= {
 44		[0] = PWRSTS_ON,	/* mpu_l1 */
 45		[1] = PWRSTS_ON,	/* mpu_l2 */
 46		[2] = PWRSTS_ON,	/* mpu_ram */
 47	},
 48	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
 49};
 50
 51static struct powerdomain rtc_43xx_pwrdm = {
 52	.name		  = "rtc_pwrdm",
 53	.voltdm		  = { .name = "rtc" },
 54	.prcm_offs	  = AM43XX_PRM_RTC_INST,
 55	.prcm_partition	  = AM43XX_PRM_PARTITION,
 56	.pwrsts		  = PWRSTS_ON,
 57};
 58
 59static struct powerdomain wkup_43xx_pwrdm = {
 60	.name		  = "wkup_pwrdm",
 61	.voltdm		  = { .name = "core" },
 62	.prcm_offs	  = AM43XX_PRM_WKUP_INST,
 63	.prcm_partition	  = AM43XX_PRM_PARTITION,
 64	.pwrsts		  = PWRSTS_ON,
 65	.banks		  = 1,
 66	.pwrsts_mem_on	= {
 67		[0] = PWRSTS_ON,	/* debugss_mem */
 68	},
 69};
 70
 71static struct powerdomain tamper_43xx_pwrdm = {
 72	.name		  = "tamper_pwrdm",
 73	.voltdm		  = { .name = "tamper" },
 74	.prcm_offs	  = AM43XX_PRM_TAMPER_INST,
 75	.prcm_partition	  = AM43XX_PRM_PARTITION,
 76	.pwrsts		  = PWRSTS_ON,
 77};
 78
 79static struct powerdomain cefuse_43xx_pwrdm = {
 80	.name		  = "cefuse_pwrdm",
 81	.voltdm		  = { .name = "core" },
 82	.prcm_offs	  = AM43XX_PRM_CEFUSE_INST,
 83	.prcm_partition	  = AM43XX_PRM_PARTITION,
 84	.pwrsts		  = PWRSTS_OFF_ON,
 85	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
 86};
 87
 88static struct powerdomain per_43xx_pwrdm = {
 89	.name		  = "per_pwrdm",
 90	.voltdm		  = { .name = "core" },
 91	.prcm_offs	  = AM43XX_PRM_PER_INST,
 92	.prcm_partition	  = AM43XX_PRM_PARTITION,
 93	.pwrsts		  = PWRSTS_OFF_RET_ON,
 94	.pwrsts_logic_ret = PWRSTS_OFF_RET,
 95	.banks		  = 4,
 96	.pwrsts_mem_ret	= {
 97		[0] = PWRSTS_OFF_RET,	/* icss_mem */
 98		[1] = PWRSTS_OFF_RET,	/* per_mem */
 99		[2] = PWRSTS_OFF_RET,	/* ram1_mem */
100		[3] = PWRSTS_OFF_RET,	/* ram2_mem */
101	},
102	.pwrsts_mem_on	= {
103		[0] = PWRSTS_ON,	/* icss_mem */
104		[1] = PWRSTS_ON,	/* per_mem */
105		[2] = PWRSTS_ON,	/* ram1_mem */
106		[3] = PWRSTS_ON,	/* ram2_mem */
107	},
108	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
109};
110
111static struct powerdomain *powerdomains_am43xx[] __initdata = {
112	&gfx_43xx_pwrdm,
113	&mpu_43xx_pwrdm,
114	&rtc_43xx_pwrdm,
115	&wkup_43xx_pwrdm,
116	&tamper_43xx_pwrdm,
117	&cefuse_43xx_pwrdm,
118	&per_43xx_pwrdm,
119	NULL
120};
121
122static int am43xx_check_vcvp(void)
123{
124	return 0;
125}
126
127void __init am43xx_powerdomains_init(void)
128{
129	omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
130	pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
131	pwrdm_register_pwrdms(powerdomains_am43xx);
132	pwrdm_complete_init();
133}