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https://github.com/AsahiLinux/u-boot
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88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2019 NXP
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*/
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#define DEBUG
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#include <common.h>
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#include <dm.h>
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#include <power-domain-uclass.h>
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#include <asm/arch/power-domain.h>
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#include <asm/arch/sci/sci.h>
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static int imx8_power_domain_request(struct power_domain *power_domain)
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{
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debug("%s(power_domain=%p)\n", __func__, power_domain);
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return 0;
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}
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static int imx8_power_domain_free(struct power_domain *power_domain)
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{
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debug("%s(power_domain=%p)\n", __func__, power_domain);
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return 0;
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}
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static int imx8_power_domain_on(struct power_domain *power_domain)
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{
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u32 resource_id = power_domain->id;
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int ret;
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debug("%s: resource_id %u\n", __func__, resource_id);
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ret = sc_pm_set_resource_power_mode(-1, resource_id, SC_PM_PW_MODE_ON);
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if (ret) {
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printf("Error: %u Power up failed! (error = %d)\n",
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resource_id, ret);
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return ret;
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}
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return 0;
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}
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static int imx8_power_domain_off(struct power_domain *power_domain)
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{
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u32 resource_id = power_domain->id;
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int ret;
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debug("%s: resource_id %u\n", __func__, resource_id);
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ret = sc_pm_set_resource_power_mode(-1, resource_id, SC_PM_PW_MODE_OFF);
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if (ret) {
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printf("Error: %u Power off failed! (error = %d)\n",
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resource_id, ret);
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return ret;
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}
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return 0;
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}
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static int imx8_power_domain_probe(struct udevice *dev)
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{
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debug("%s(dev=%s)\n", __func__, dev->name);
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return 0;
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}
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static const struct udevice_id imx8_power_domain_ids[] = {
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{ .compatible = "fsl,imx8qxp-scu-pd" },
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{ .compatible = "fsl,scu-pd" },
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{ }
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};
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struct power_domain_ops imx8_power_domain_ops_v2 = {
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.request = imx8_power_domain_request,
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.free = imx8_power_domain_free,
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.on = imx8_power_domain_on,
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.off = imx8_power_domain_off,
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};
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U_BOOT_DRIVER(imx8_power_domain_v2) = {
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.name = "imx8_power_domain_v2",
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.id = UCLASS_POWER_DOMAIN,
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.of_match = imx8_power_domain_ids,
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.probe = imx8_power_domain_probe,
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.ops = &imx8_power_domain_ops_v2,
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};
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