forked from Mirrors/opensbi
ba29293dc9
The parser will fail if the timer is clint timer and has regname
property. As the regname is only meaningful for aclint, it is more
robust to only check regname for aclint timer.
Fixes: 6112d58 ("lib: utils/fdt: Allow to use reg-names when parsing ACLINT")
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*/
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#include <sbi/sbi_error.h>
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#include <sbi/sbi_heap.h>
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#include <sbi_utils/fdt/fdt_helper.h>
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#include <sbi_utils/ipi/fdt_ipi.h>
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#include <sbi_utils/ipi/aclint_mswi.h>
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static int ipi_mswi_cold_init(void *fdt, int nodeoff,
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const struct fdt_match *match)
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{
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int rc;
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unsigned long offset;
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struct aclint_mswi_data *ms;
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ms = sbi_zalloc(sizeof(*ms));
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if (!ms)
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return SBI_ENOMEM;
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rc = fdt_parse_aclint_node(fdt, nodeoff, false, false,
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&ms->addr, &ms->size, NULL, NULL,
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&ms->first_hartid, &ms->hart_count);
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if (rc) {
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sbi_free(ms);
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return rc;
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}
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if (match->data) {
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/* Adjust MSWI address and size for CLINT device */
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offset = *((unsigned long *)match->data);
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ms->addr += offset;
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if ((ms->size - offset) < ACLINT_MSWI_SIZE)
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return SBI_EINVAL;
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ms->size = ACLINT_MSWI_SIZE;
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}
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rc = aclint_mswi_cold_init(ms);
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if (rc) {
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sbi_free(ms);
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return rc;
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}
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return 0;
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}
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static const unsigned long clint_offset = CLINT_MSWI_OFFSET;
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static const struct fdt_match ipi_mswi_match[] = {
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{ .compatible = "riscv,clint0", .data = &clint_offset },
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{ .compatible = "sifive,clint0", .data = &clint_offset },
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{ .compatible = "thead,c900-clint", .data = &clint_offset },
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{ .compatible = "thead,c900-aclint-mswi" },
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{ .compatible = "riscv,aclint-mswi" },
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{ },
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};
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struct fdt_ipi fdt_ipi_mswi = {
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.match_table = ipi_mswi_match,
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.cold_init = ipi_mswi_cold_init,
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.warm_init = aclint_mswi_warm_init,
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.exit = NULL,
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};
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