61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <platform_def.h>
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#include <common/debug.h>
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#include <common/fdt_fixup.h>
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#include <lib/mmio.h>
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#include <lib/psci/psci.h>
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#include <sunxi_cpucfg.h>
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#include <sunxi_private.h>
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static bool psci_is_scpi;
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#if SUNXI_PSCI_USE_SCPI
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bool sunxi_psci_is_scpi(void)
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{
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return psci_is_scpi;
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}
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#endif
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int sunxi_validate_ns_entrypoint(uintptr_t ns_entrypoint)
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{
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/* The non-secure entry point must be in DRAM */
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if (ns_entrypoint < SUNXI_DRAM_BASE) {
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return PSCI_E_INVALID_ADDRESS;
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}
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return PSCI_E_SUCCESS;
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}
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int plat_setup_psci_ops(uintptr_t sec_entrypoint,
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const plat_psci_ops_t **psci_ops)
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{
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assert(psci_ops);
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/* Program all CPU entry points. */
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for (unsigned int cpu = 0; cpu < PLATFORM_CORE_COUNT; ++cpu) {
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mmio_write_32(SUNXI_CPUCFG_RVBAR_LO_REG(cpu),
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sec_entrypoint & 0xffffffff);
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mmio_write_32(SUNXI_CPUCFG_RVBAR_HI_REG(cpu),
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sec_entrypoint >> 32);
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}
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if (sunxi_set_scpi_psci_ops(psci_ops) == 0) {
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INFO("PSCI: Suspend is available via SCPI\n");
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psci_is_scpi = true;
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} else {
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INFO("PSCI: Suspend is unavailable\n");
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sunxi_set_native_psci_ops(psci_ops);
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}
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return 0;
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}
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