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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Masahiro Yamada <yamada.masahiro@socionext.com>
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include <dm.h>
#include <sysreset.h>
#include <asm/system.h>
#include <linux/errno.h>
#include <linux/psci.h>
#include <asm/psci.h>
static int qcom_psci_sysreset_get_status(struct udevice *dev, char *buf, int size)
{
return -EOPNOTSUPP;
}
static int qcom_psci_sysreset_request_arg(struct udevice *dev, int argc,
char * const argv[])
{
if (!strncasecmp(argv[1], "-edl", 4)) {
/* Supported in qcs9100, qcs8300, sc7280, qcs615 */
if (psci_features(ARM_PSCI_1_1_FN64_SYSTEM_RESET2) ==
ARM_PSCI_RET_SUCCESS) {
psci_system_reset2(0, 1);
return -EINPROGRESS;
}
printf("PSCI SYSTEM_RESET2 not supported\n");
}
return -EPROTONOSUPPORT;
}
static struct sysreset_ops qcom_psci_sysreset_ops = {
.request_arg = qcom_psci_sysreset_request_arg,
.get_status = qcom_psci_sysreset_get_status,
};
U_BOOT_DRIVER(qcom_psci_sysreset) = {
.name = "qcom_psci-sysreset",
.id = UCLASS_SYSRESET,
.ops = &qcom_psci_sysreset_ops,
.flags = DM_FLAG_PRE_RELOC,
};
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