50 lines
975 B
C
50 lines
975 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* This file implements basic PSCI support for Renesas r8a779a0 SoC
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*
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* Copyright (C) 2020 Renesas Electronics Corp.
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*
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/psci.h>
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#include <asm/secure.h>
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int __secure psci_features(u32 function_id, u32 psci_fid)
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{
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switch (psci_fid) {
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case ARM_PSCI_0_2_FN_PSCI_VERSION:
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case ARM_PSCI_0_2_FN_SYSTEM_RESET:
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return 0x0;
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}
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/* case ARM_PSCI_0_2_FN_CPU_ON: */
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/* case ARM_PSCI_0_2_FN_CPU_OFF: */
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/* case ARM_PSCI_0_2_FN_AFFINITY_INFO: */
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/* case ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE: */
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/* case ARM_PSCI_0_2_FN_SYSTEM_OFF: */
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return ARM_PSCI_RET_NI;
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}
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u32 __secure psci_version(void)
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{
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return ARM_PSCI_VER_0_2;
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}
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#define RST_BASE 0xE6160000 /* Domain0 */
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#define RST_SRESCR0 (RST_BASE + 0x18)
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#define RST_SPRES 0x5AA58000
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void __secure __noreturn psci_system_reset(void)
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{
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writel(RST_SPRES, RST_SRESCR0);
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while (1)
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;
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}
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int psci_update_dt(void *fdt)
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{
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return 0;
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}
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