57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2021 Western Digital Corporation or its affiliates.
|
|
* Copyright (c) 2022 Ventana Micro Systems Inc.
|
|
*
|
|
* Authors:
|
|
* Anup Patel <anup.patel@wdc.com>
|
|
*/
|
|
|
|
#include <libfdt.h>
|
|
#include <sbi/riscv_asm.h>
|
|
#include <sbi/sbi_error.h>
|
|
#include <sbi_utils/fdt/fdt_helper.h>
|
|
#include <sbi_utils/irqchip/fdt_irqchip.h>
|
|
#include <sbi_utils/irqchip/aplic.h>
|
|
|
|
#define APLIC_MAX_NR 16
|
|
|
|
static unsigned long aplic_count = 0;
|
|
static struct aplic_data aplic[APLIC_MAX_NR];
|
|
|
|
static int irqchip_aplic_warm_init(void)
|
|
{
|
|
/* Nothing to do here. */
|
|
return 0;
|
|
}
|
|
|
|
static int irqchip_aplic_cold_init(void *fdt, int nodeoff,
|
|
const struct fdt_match *match)
|
|
{
|
|
int rc;
|
|
struct aplic_data *pd;
|
|
|
|
if (APLIC_MAX_NR <= aplic_count)
|
|
return SBI_ENOSPC;
|
|
pd = &aplic[aplic_count++];
|
|
|
|
rc = fdt_parse_aplic_node(fdt, nodeoff, pd);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return aplic_cold_irqchip_init(pd);
|
|
}
|
|
|
|
static const struct fdt_match irqchip_aplic_match[] = {
|
|
{ .compatible = "riscv,aplic" },
|
|
{ },
|
|
};
|
|
|
|
struct fdt_irqchip fdt_irqchip_aplic = {
|
|
.match_table = irqchip_aplic_match,
|
|
.cold_init = irqchip_aplic_cold_init,
|
|
.warm_init = irqchip_aplic_warm_init,
|
|
.exit = NULL,
|
|
};
|