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105 lines
2.2 KiB
105 lines
2.2 KiB
4 months ago
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/*
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* Copyright (c) 2019, Renesas Electronics Corporation. 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 <arch_helpers.h>
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#include <drivers/console.h>
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#include <lib/xlat_tables/xlat_mmu_helpers.h>
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#include <plat/common/platform.h>
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#include <lib/mmio.h>
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#define CPG_BASE 0xE6150000
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#define CPG_MSTPSR3 0x0048
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#define MSTP318 (1 << 18)
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#define MSTP319 (1 << 19)
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#define PMSR 0x5c
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#define PMSR_L1FAEG (1U << 31)
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#define PMSR_PMEL1RX (1 << 23)
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#define PMCTLR 0x60
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#define PMSR_L1IATN (1U << 31)
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static int rcar_pcie_fixup(unsigned int controller)
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{
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uint32_t rcar_pcie_base[] = { 0xfe011000, 0xee811000 };
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uint32_t addr = rcar_pcie_base[controller];
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uint32_t cpg, pmsr;
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int ret = 0;
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/* Test if PCIECx is enabled */
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cpg = mmio_read_32(CPG_BASE + CPG_MSTPSR3);
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if (cpg & (MSTP318 << !controller))
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return ret;
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pmsr = mmio_read_32(addr + PMSR);
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if ((pmsr & PMSR_PMEL1RX) && ((pmsr & 0x70000) != 0x30000)) {
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/* Fix applicable */
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mmio_write_32(addr + PMCTLR, PMSR_L1IATN);
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while (!(mmio_read_32(addr + PMSR) & PMSR_L1FAEG))
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;
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mmio_write_32(addr + PMSR, PMSR_L1FAEG | PMSR_PMEL1RX);
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ret = 1;
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}
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return ret;
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}
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/* RAS functions common to AArch64 ARM platforms */
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void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
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void *handle, uint64_t flags)
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{
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unsigned int fixed = 0;
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fixed |= rcar_pcie_fixup(0);
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fixed |= rcar_pcie_fixup(1);
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if (fixed)
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return;
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ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
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read_mpidr_el1());
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ERROR(" exception reason=%u syndrome=0x%llx\n", ea_reason, syndrome);
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panic();
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}
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#include <drivers/renesas/rcar/console/console.h>
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static console_t rcar_boot_console;
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static console_t rcar_runtime_console;
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void rcar_console_boot_init(void)
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{
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int ret;
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ret = console_rcar_register(0, 0, 0, &rcar_boot_console);
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if (!ret)
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panic();
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console_set_scope(&rcar_boot_console, CONSOLE_FLAG_BOOT);
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}
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void rcar_console_boot_end(void)
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{
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}
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void rcar_console_runtime_init(void)
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{
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int ret;
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ret = console_rcar_register(1, 0, 0, &rcar_runtime_console);
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if (!ret)
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panic();
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console_set_scope(&rcar_boot_console, CONSOLE_FLAG_RUNTIME);
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}
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void rcar_console_runtime_end(void)
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{
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}
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