mirror of https://gitee.com/openkylin/linux.git
134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* AM43xx Power domains framework
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*
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* Copyright (C) 2013 Texas Instruments, Inc.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include "powerdomain.h"
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#include "prcm-common.h"
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#include "prcm44xx.h"
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#include "prcm43xx.h"
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static struct powerdomain gfx_43xx_pwrdm = {
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.name = "gfx_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM43XX_PRM_GFX_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_OFF_ON,
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.banks = 1,
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* gfx_mem */
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},
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.flags = PWRDM_HAS_LOWPOWERSTATECHANGE,
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};
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static struct powerdomain mpu_43xx_pwrdm = {
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.name = "mpu_pwrdm",
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.voltdm = { .name = "mpu" },
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.prcm_offs = AM43XX_PRM_MPU_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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.banks = 3,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* mpu_l1 */
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[1] = PWRSTS_OFF_RET, /* mpu_l2 */
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[2] = PWRSTS_OFF_RET, /* mpu_ram */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* mpu_l1 */
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[1] = PWRSTS_ON, /* mpu_l2 */
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[2] = PWRSTS_ON, /* mpu_ram */
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},
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.flags = PWRDM_HAS_LOWPOWERSTATECHANGE,
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};
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static struct powerdomain rtc_43xx_pwrdm = {
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.name = "rtc_pwrdm",
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.voltdm = { .name = "rtc" },
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.prcm_offs = AM43XX_PRM_RTC_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_ON,
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};
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static struct powerdomain wkup_43xx_pwrdm = {
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.name = "wkup_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM43XX_PRM_WKUP_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_ON,
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.banks = 1,
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* debugss_mem */
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},
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};
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static struct powerdomain tamper_43xx_pwrdm = {
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.name = "tamper_pwrdm",
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.voltdm = { .name = "tamper" },
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.prcm_offs = AM43XX_PRM_TAMPER_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_ON,
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};
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static struct powerdomain cefuse_43xx_pwrdm = {
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.name = "cefuse_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM43XX_PRM_CEFUSE_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_OFF_ON,
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.flags = PWRDM_HAS_LOWPOWERSTATECHANGE,
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};
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static struct powerdomain per_43xx_pwrdm = {
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.name = "per_pwrdm",
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.voltdm = { .name = "core" },
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.prcm_offs = AM43XX_PRM_PER_INST,
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.prcm_partition = AM43XX_PRM_PARTITION,
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.pwrsts = PWRSTS_OFF_RET_ON,
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.pwrsts_logic_ret = PWRSTS_OFF_RET,
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.banks = 4,
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.pwrsts_mem_ret = {
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[0] = PWRSTS_OFF_RET, /* icss_mem */
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[1] = PWRSTS_OFF_RET, /* per_mem */
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[2] = PWRSTS_OFF_RET, /* ram1_mem */
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[3] = PWRSTS_OFF_RET, /* ram2_mem */
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},
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.pwrsts_mem_on = {
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[0] = PWRSTS_ON, /* icss_mem */
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[1] = PWRSTS_ON, /* per_mem */
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[2] = PWRSTS_ON, /* ram1_mem */
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[3] = PWRSTS_ON, /* ram2_mem */
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},
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.flags = PWRDM_HAS_LOWPOWERSTATECHANGE,
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};
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static struct powerdomain *powerdomains_am43xx[] __initdata = {
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&gfx_43xx_pwrdm,
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&mpu_43xx_pwrdm,
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&rtc_43xx_pwrdm,
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&wkup_43xx_pwrdm,
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&tamper_43xx_pwrdm,
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&cefuse_43xx_pwrdm,
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&per_43xx_pwrdm,
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NULL
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};
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static int am43xx_check_vcvp(void)
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{
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return 0;
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}
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void __init am43xx_powerdomains_init(void)
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{
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omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
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pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
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pwrdm_register_pwrdms(powerdomains_am43xx);
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pwrdm_complete_init();
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}
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