luckfox-pico-sdk/sysdrv/source/mcu/rt-thread/libcpu/arm/armv6/vfp.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

39 lines
743 B
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2014-11-07 weety first version
*/
#include <rthw.h>
#include <rtthread.h>
#include "vfp.h"
#ifdef RT_USING_VFP
void vfp_init(void)
{
int ret = 0;
unsigned int value;
asm volatile ("mrc p15, 0, %0, c1, c0, 2"
:"=r"(value)
:);
value |= 0xf00000;/*enable CP10, CP11 user access*/
asm volatile("mcr p15, 0, %0, c1, c0, 2"
:
:"r"(value));
asm volatile("fmrx %0, fpexc"
:"=r"(value));
value |=(1<<30);
asm volatile("fmxr fpexc, %0"
:
:"r"(value));
}
#endif