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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright 2021, Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
- */
- #include <common.h>
- #include <dm.h>
- #include <errno.h>
- #include <log.h>
- #include <sysreset.h>
- #include <asm/sbi.h>
- static enum sbi_srst_reset_type reset_type_map[SYSRESET_COUNT] = {
- [SYSRESET_WARM] = SBI_SRST_RESET_TYPE_WARM_REBOOT,
- [SYSRESET_COLD] = SBI_SRST_RESET_TYPE_COLD_REBOOT,
- [SYSRESET_POWER] = SBI_SRST_RESET_TYPE_COLD_REBOOT,
- [SYSRESET_POWER_OFF] = SBI_SRST_RESET_TYPE_SHUTDOWN,
- };
- static int sbi_sysreset_request(struct udevice *dev, enum sysreset_t type)
- {
- enum sbi_srst_reset_type reset_type;
- reset_type = reset_type_map[type];
- sbi_srst_reset(reset_type, SBI_SRST_RESET_REASON_NONE);
- return -EINPROGRESS;
- }
- static int sbi_sysreset_probe(struct udevice *dev)
- {
- long have_reset;
- have_reset = sbi_probe_extension(SBI_EXT_SRST);
- if (have_reset)
- return 0;
- log_warning("SBI has no system reset extension\n");
- return -ENOENT;
- }
- static struct sysreset_ops sbi_sysreset_ops = {
- .request = sbi_sysreset_request,
- };
- U_BOOT_DRIVER(sbi_sysreset) = {
- .name = "sbi-sysreset",
- .id = UCLASS_SYSRESET,
- .ops = &sbi_sysreset_ops,
- .probe = sbi_sysreset_probe,
- };
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