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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Texas Instruments System Control Interface (TI SCI) system reset driver
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*
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* Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
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* Andreas Dannenberg <dannenberg@ti.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <log.h>
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#include <sysreset.h>
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#include <dm/device_compat.h>
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#include <linux/err.h>
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#include <linux/soc/ti/ti_sci_protocol.h>
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/**
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* struct ti_sci_sysreset_data - sysreset controller information structure
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* @sci: TI SCI handle used for communication with system controller
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*/
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struct ti_sci_sysreset_data {
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const struct ti_sci_handle *sci;
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};
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static int ti_sci_sysreset_probe(struct udevice *dev)
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{
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struct ti_sci_sysreset_data *data = dev_get_priv(dev);
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debug("%s(dev=%p)\n", __func__, dev);
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if (!data)
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return -ENOMEM;
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/* Store handle for communication with the system controller */
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data->sci = ti_sci_get_handle(dev);
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if (IS_ERR(data->sci))
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return PTR_ERR(data->sci);
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return 0;
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}
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static int ti_sci_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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struct ti_sci_sysreset_data *data = dev_get_priv(dev);
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const struct ti_sci_handle *sci = data->sci;
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const struct ti_sci_core_ops *cops = &sci->ops.core_ops;
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int ret;
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debug("%s(dev=%p, type=%d)\n", __func__, dev, type);
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ret = cops->reboot_device(sci);
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if (ret)
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dev_err(dev, "%s: reboot_device failed (%d)\n", __func__, ret);
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return ret;
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}
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static struct sysreset_ops ti_sci_sysreset_ops = {
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.request = ti_sci_sysreset_request,
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};
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U_BOOT_DRIVER(ti_sci_sysreset) = {
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.name = "ti-sci-sysreset",
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.id = UCLASS_SYSRESET,
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.probe = ti_sci_sysreset_probe,
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.priv_auto = sizeof(struct ti_sci_sysreset_data),
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.ops = &ti_sci_sysreset_ops,
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};
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