cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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powerdomains43xx_data.c (3337B)

      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}