mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
857f39d7b0
It seems that SYSRESET_POWER_OFF was added recently, and all previous code used SYSRESET_POWER for poweroff. SYSRESET_POWER is supposed to be a PMIC-level power cycle, not a poweroff. (Comment by Simon Glass) SYSRESET_POWER means to do a power reset (removing and reinstating all power) SYSRESET_POWER_OFF means to turn the device off and leave it off Signed-off-by: Urja Rannikko <urjaman@gmail.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com> (Update comment to help understand the patch) Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
41 lines
814 B
C
41 lines
814 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2017 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <sysreset.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/psci.h>
|
|
|
|
static int psci_sysreset_request(struct udevice *dev, enum sysreset_t type)
|
|
{
|
|
unsigned long function_id;
|
|
|
|
switch (type) {
|
|
case SYSRESET_WARM:
|
|
case SYSRESET_COLD:
|
|
function_id = PSCI_0_2_FN_SYSTEM_RESET;
|
|
break;
|
|
case SYSRESET_POWER_OFF:
|
|
function_id = PSCI_0_2_FN_SYSTEM_OFF;
|
|
break;
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
|
|
invoke_psci_fn(function_id, 0, 0, 0);
|
|
|
|
return -EINPROGRESS;
|
|
}
|
|
|
|
static struct sysreset_ops psci_sysreset_ops = {
|
|
.request = psci_sysreset_request,
|
|
};
|
|
|
|
U_BOOT_DRIVER(psci_sysreset) = {
|
|
.name = "psci-sysreset",
|
|
.id = UCLASS_SYSRESET,
|
|
.ops = &psci_sysreset_ops,
|
|
};
|