mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
20e442ab2d
The current macro is a misnomer since it does not declare a device directly. Instead, it declares driver_info record which U-Boot uses at runtime to create a device. The distinction seems somewhat minor most of the time, but is becomes quite confusing when we actually want to declare a device, with of-platdata. We are left trying to distinguish between a device which isn't actually device, and a device that is (perhaps an 'instance'?) It seems better to rename this macro to describe what it actually is. The macros is not widely used, since boards should use devicetree to declare devices. Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is declaring a new driver_info record, not a device. Signed-off-by: Simon Glass <sjg@chromium.org>
142 lines
3.1 KiB
C
142 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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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 <sysreset.h>
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#include <asm/state.h>
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#include <asm/test.h>
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static int sandbox_warm_sysreset_request(struct udevice *dev,
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enum sysreset_t type)
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{
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struct sandbox_state *state = state_get_current();
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switch (type) {
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case SYSRESET_WARM:
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state->last_sysreset = type;
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break;
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default:
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return -ENOSYS;
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}
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if (!state->sysreset_allowed[type])
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return -EACCES;
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return -EINPROGRESS;
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}
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int sandbox_warm_sysreset_get_status(struct udevice *dev, char *buf, int size)
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{
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strlcpy(buf, "Reset Status: WARM", size);
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return 0;
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}
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int sandbox_warm_sysreset_get_last(struct udevice *dev)
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{
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return SYSRESET_WARM;
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}
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static int sandbox_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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struct sandbox_state *state = state_get_current();
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/*
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* If we have a device tree, the device we created from platform data
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* (see the U_BOOT_DRVINFO() declaration below) should not do anything.
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* If we are that device, return an error.
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*/
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if (state->fdt_fname && !dev_has_ofnode(dev))
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return -ENODEV;
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switch (type) {
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case SYSRESET_COLD:
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state->last_sysreset = type;
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if (!state->sysreset_allowed[type])
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return -EACCES;
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sandbox_reset();
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break;
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case SYSRESET_POWER_OFF:
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state->last_sysreset = type;
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if (!state->sysreset_allowed[type])
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return -EACCES;
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sandbox_exit();
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break;
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case SYSRESET_POWER:
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if (!state->sysreset_allowed[type])
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return -EACCES;
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sandbox_exit();
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default:
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return -ENOSYS;
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}
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if (!state->sysreset_allowed[type])
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return -EACCES;
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return -EINPROGRESS;
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}
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int sandbox_sysreset_get_status(struct udevice *dev, char *buf, int size)
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{
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strlcpy(buf, "Reset Status: COLD", size);
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return 0;
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}
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int sandbox_sysreset_get_last(struct udevice *dev)
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{
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struct sandbox_state *state = state_get_current();
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/*
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* The first phase is a power reset, after that we assume we don't
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* know.
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*/
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return state->jumped_fname ? SYSRESET_WARM : SYSRESET_POWER;
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}
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static struct sysreset_ops sandbox_sysreset_ops = {
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.request = sandbox_sysreset_request,
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.get_status = sandbox_sysreset_get_status,
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.get_last = sandbox_sysreset_get_last,
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};
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static const struct udevice_id sandbox_sysreset_ids[] = {
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{ .compatible = "sandbox,reset" },
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{ }
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};
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U_BOOT_DRIVER(sysreset_sandbox) = {
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.name = "sysreset_sandbox",
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.id = UCLASS_SYSRESET,
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.of_match = sandbox_sysreset_ids,
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.ops = &sandbox_sysreset_ops,
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};
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static struct sysreset_ops sandbox_warm_sysreset_ops = {
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.request = sandbox_warm_sysreset_request,
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.get_status = sandbox_warm_sysreset_get_status,
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.get_last = sandbox_warm_sysreset_get_last,
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};
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static const struct udevice_id sandbox_warm_sysreset_ids[] = {
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{ .compatible = "sandbox,warm-reset" },
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{ }
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};
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U_BOOT_DRIVER(warm_sysreset_sandbox) = {
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.name = "warm_sysreset_sandbox",
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.id = UCLASS_SYSRESET,
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.of_match = sandbox_warm_sysreset_ids,
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.ops = &sandbox_warm_sysreset_ops,
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};
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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/* This is here in case we don't have a device tree */
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U_BOOT_DRVINFO(sysreset_sandbox_non_fdt) = {
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.name = "sysreset_sandbox",
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};
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#endif
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