forked from Mirrors/opensbi
be245acfff
The initialization of a reset driver may fail for various reasons, like a PMIC based reset driver not finding the required I2C driver. The return code of the init routine may take other error values than -ENODEV. If the initialization of a reset driver fails, this should not lead to the board hanging. It is enough that the reset driver does not call sbi_system_reset_add_device() to avoid invoking the driver for a device that could not be initialized. Change the return type of fdt_reset_init() to void. Print a message if an error occurs. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Dong Du <Dd_nirvana@sjtu.edu.cn> Reviewed-by: Anup Patel <anup.patel@wdc.com>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 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_console.h>
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#include <sbi/sbi_error.h>
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#include <sbi/sbi_scratch.h>
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#include <sbi_utils/fdt/fdt_helper.h>
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#include <sbi_utils/reset/fdt_reset.h>
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extern struct fdt_reset fdt_poweroff_gpio;
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extern struct fdt_reset fdt_reset_gpio;
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extern struct fdt_reset fdt_reset_htif;
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extern struct fdt_reset fdt_reset_sifive_test;
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extern struct fdt_reset fdt_reset_sunxi_wdt;
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extern struct fdt_reset fdt_reset_thead;
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static struct fdt_reset *reset_drivers[] = {
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&fdt_poweroff_gpio,
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&fdt_reset_gpio,
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&fdt_reset_htif,
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&fdt_reset_sifive_test,
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&fdt_reset_sunxi_wdt,
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&fdt_reset_thead,
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};
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void fdt_reset_init(void)
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{
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int pos, noff, rc;
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struct fdt_reset *drv;
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const struct fdt_match *match;
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void *fdt = fdt_get_address();
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for (pos = 0; pos < array_size(reset_drivers); pos++) {
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drv = reset_drivers[pos];
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noff = fdt_find_match(fdt, -1, drv->match_table, &match);
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if (noff < 0)
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continue;
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if (drv->init) {
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rc = drv->init(fdt, noff, match);
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if (rc && rc != SBI_ENODEV) {
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sbi_printf("%s: %s init failed, %d\n",
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__func__, match->compatible, rc);
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}
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}
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}
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}
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