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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2021 SiFive
*
* Authors:
* David Abdurachmanov <david.abdurachmanov@sifive.com>
*/
#include <platform_override.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/fdt/fdt_fixup.h>
static u64 sifive_fu740_tlbr_flush_limit(const struct fdt_match *match)
{
/*
* Needed to address CIP-1200 errata on SiFive FU740
* Title: Instruction TLB can fail to respect a non-global SFENCE
* Workaround: Flush the TLB using SFENCE.VMA x0, x0
* See Errata_FU740-C000_20210205 from
* https://www.sifive.com/boards/hifive-unmatched
*/
return 0;
}
static const struct fdt_match sifive_fu740_match[] = {
{ .compatible = "sifive,fu740" },
{ .compatible = "sifive,fu740-c000" },
{ .compatible = "sifive,hifive-unmatched-a00" },
{ },
};
const struct platform_override sifive_fu740 = {
.match_table = sifive_fu740_match,
.tlbr_flush_limit = sifive_fu740_tlbr_flush_limit,
};
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