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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#include <sbi/sbi_error.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/ipi/fdt_ipi.h>
#include <sbi_utils/sys/clint.h>
#define CLINT_IPI_MAX_NR 16
static unsigned long clint_ipi_count = 0;
static struct clint_data clint_ipi[CLINT_IPI_MAX_NR];
static int ipi_clint_cold_init(void *fdt, int nodeoff,
const struct fdt_match *match)
{
int rc;
struct clint_data *ci;
if (CLINT_IPI_MAX_NR <= clint_ipi_count)
return SBI_ENOSPC;
ci = &clint_ipi[clint_ipi_count++];
rc = fdt_parse_clint_node(fdt, nodeoff, FALSE, ci);
if (rc)
return rc;
return clint_cold_ipi_init(ci);
}
static const struct fdt_match ipi_clint_match[] = {
{ .compatible = "riscv,clint0" },
{ .compatible = "sifive,clint0" },
{ },
};
struct fdt_ipi fdt_ipi_clint = {
.match_table = ipi_clint_match,
.cold_init = ipi_clint_cold_init,
.warm_init = clint_warm_ipi_init,
.exit = NULL,
.send = clint_ipi_send,
.clear = clint_ipi_clear,
};
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