linux-stable/arch/arm/mach-omap2/powerdomains43xx_data.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * AM43xx Power domains framework
 *
 * Copyright (C) 2013 Texas Instruments, Inc.
 */

#include <linux/kernel.h>
#include <linux/init.h>

#include "powerdomain.h"

#include "prcm-common.h"
#include "prcm44xx.h"
#include "prcm43xx.h"

static struct powerdomain gfx_43xx_pwrdm = {
	.name		  = "gfx_pwrdm",
	.voltdm		  = { .name = "core" },
	.prcm_offs	  = AM43XX_PRM_GFX_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_OFF_ON,
	.banks		  = 1,
	.pwrsts_mem_on	= {
		[0] = PWRSTS_ON,	/* gfx_mem */
	},
	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
};

static struct powerdomain mpu_43xx_pwrdm = {
	.name		  = "mpu_pwrdm",
	.voltdm		  = { .name = "mpu" },
	.prcm_offs	  = AM43XX_PRM_MPU_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_OFF_RET_ON,
	.pwrsts_logic_ret = PWRSTS_OFF_RET,
	.banks		  = 3,
	.pwrsts_mem_ret	= {
		[0] = PWRSTS_OFF_RET,	/* mpu_l1 */
		[1] = PWRSTS_OFF_RET,	/* mpu_l2 */
		[2] = PWRSTS_OFF_RET,	/* mpu_ram */
	},
	.pwrsts_mem_on	= {
		[0] = PWRSTS_ON,	/* mpu_l1 */
		[1] = PWRSTS_ON,	/* mpu_l2 */
		[2] = PWRSTS_ON,	/* mpu_ram */
	},
	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
};

static struct powerdomain rtc_43xx_pwrdm = {
	.name		  = "rtc_pwrdm",
	.voltdm		  = { .name = "rtc" },
	.prcm_offs	  = AM43XX_PRM_RTC_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_ON,
};

static struct powerdomain wkup_43xx_pwrdm = {
	.name		  = "wkup_pwrdm",
	.voltdm		  = { .name = "core" },
	.prcm_offs	  = AM43XX_PRM_WKUP_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_ON,
	.banks		  = 1,
	.pwrsts_mem_on	= {
		[0] = PWRSTS_ON,	/* debugss_mem */
	},
};

static struct powerdomain tamper_43xx_pwrdm = {
	.name		  = "tamper_pwrdm",
	.voltdm		  = { .name = "tamper" },
	.prcm_offs	  = AM43XX_PRM_TAMPER_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_ON,
};

static struct powerdomain cefuse_43xx_pwrdm = {
	.name		  = "cefuse_pwrdm",
	.voltdm		  = { .name = "core" },
	.prcm_offs	  = AM43XX_PRM_CEFUSE_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_OFF_ON,
	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
};

static struct powerdomain per_43xx_pwrdm = {
	.name		  = "per_pwrdm",
	.voltdm		  = { .name = "core" },
	.prcm_offs	  = AM43XX_PRM_PER_INST,
	.prcm_partition	  = AM43XX_PRM_PARTITION,
	.pwrsts		  = PWRSTS_OFF_RET_ON,
	.pwrsts_logic_ret = PWRSTS_OFF_RET,
	.banks		  = 4,
	.pwrsts_mem_ret	= {
		[0] = PWRSTS_OFF_RET,	/* icss_mem */
		[1] = PWRSTS_OFF_RET,	/* per_mem */
		[2] = PWRSTS_OFF_RET,	/* ram1_mem */
		[3] = PWRSTS_OFF_RET,	/* ram2_mem */
	},
	.pwrsts_mem_on	= {
		[0] = PWRSTS_ON,	/* icss_mem */
		[1] = PWRSTS_ON,	/* per_mem */
		[2] = PWRSTS_ON,	/* ram1_mem */
		[3] = PWRSTS_ON,	/* ram2_mem */
	},
	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
};

static struct powerdomain *powerdomains_am43xx[] __initdata = {
	&gfx_43xx_pwrdm,
	&mpu_43xx_pwrdm,
	&rtc_43xx_pwrdm,
	&wkup_43xx_pwrdm,
	&tamper_43xx_pwrdm,
	&cefuse_43xx_pwrdm,
	&per_43xx_pwrdm,
	NULL
};

static int am43xx_check_vcvp(void)
{
	return 0;
}

void __init am43xx_powerdomains_init(void)
{
	omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
	pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
	pwrdm_register_pwrdms(powerdomains_am43xx);
	pwrdm_complete_init();
}