luckfox-pico-sdk/sysdrv/source/kernel/drivers/reset/tegra/reset-bpmp.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

76 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2016 NVIDIA Corporation
*/
#include <linux/reset-controller.h>
#include <soc/tegra/bpmp.h>
#include <soc/tegra/bpmp-abi.h>
static struct tegra_bpmp *to_tegra_bpmp(struct reset_controller_dev *rstc)
{
return container_of(rstc, struct tegra_bpmp, rstc);
}
static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
enum mrq_reset_commands command,
unsigned int id)
{
struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc);
struct mrq_reset_request request;
struct tegra_bpmp_message msg;
int err;
memset(&request, 0, sizeof(request));
request.cmd = command;
request.reset_id = id;
memset(&msg, 0, sizeof(msg));
msg.mrq = MRQ_RESET;
msg.tx.data = &request;
msg.tx.size = sizeof(request);
err = tegra_bpmp_transfer(bpmp, &msg);
if (err)
return err;
if (msg.rx.ret)
return -EINVAL;
return 0;
}
static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,
unsigned long id)
{
return tegra_bpmp_reset_common(rstc, CMD_RESET_MODULE, id);
}
static int tegra_bpmp_reset_assert(struct reset_controller_dev *rstc,
unsigned long id)
{
return tegra_bpmp_reset_common(rstc, CMD_RESET_ASSERT, id);
}
static int tegra_bpmp_reset_deassert(struct reset_controller_dev *rstc,
unsigned long id)
{
return tegra_bpmp_reset_common(rstc, CMD_RESET_DEASSERT, id);
}
static const struct reset_control_ops tegra_bpmp_reset_ops = {
.reset = tegra_bpmp_reset_module,
.assert = tegra_bpmp_reset_assert,
.deassert = tegra_bpmp_reset_deassert,
};
int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp)
{
bpmp->rstc.ops = &tegra_bpmp_reset_ops;
bpmp->rstc.owner = THIS_MODULE;
bpmp->rstc.of_node = bpmp->dev->of_node;
bpmp->rstc.nr_resets = bpmp->soc->num_resets;
return devm_reset_controller_register(bpmp->dev, &bpmp->rstc);
}