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a387a8dff0
The timer driver subsystem does not need any extra data, so it can use `struct fdt_driver` directly. The generic fdt_timer_init() performs a best-effort initialization of all matching DT nodes. Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org>
50 lines
1018 B
C
50 lines
1018 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2022 Andes Technology Corporation
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*
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* Authors:
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* Yu Chien Peter Lin <peterlin@andestech.com>
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*/
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#include <sbi_utils/fdt/fdt_helper.h>
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#include <sbi_utils/timer/fdt_timer.h>
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#include <sbi_utils/timer/andes_plmt.h>
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extern struct plmt_data plmt;
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static int fdt_plmt_cold_timer_init(const 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 plmt_base;
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rc = fdt_parse_plmt_node(fdt, nodeoff, &plmt_base, &plmt.size,
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&plmt.hart_count);
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if (rc)
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return rc;
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plmt.time_val = (u64 *)plmt_base;
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plmt.time_cmp = (u64 *)(plmt_base + 0x8);
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rc = fdt_parse_timebase_frequency(fdt, &plmt.timer_freq);
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if (rc)
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return rc;
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rc = plmt_cold_timer_init(&plmt);
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if (rc)
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return rc;
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return 0;
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}
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static const struct fdt_match timer_plmt_match[] = {
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{ .compatible = "andestech,plmt0" },
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{},
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};
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const struct fdt_driver fdt_timer_plmt = {
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.match_table = timer_plmt_match,
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.init = fdt_plmt_cold_timer_init,
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};
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