8f34c2760d
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>
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* File : stack.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2016Äê9ÔÂ8ÈÕ Urey the first version
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*/
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#include <rtthread.h>
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#include "../common/mips.h"
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register U32 $GP __asm__ ("$28");
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rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit)
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{
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static rt_uint32_t wSR=0;
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static rt_uint32_t wGP;
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mips_reg_ctx *regCtx;
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mips_arg_ctx *argCtx;
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rt_uint32_t i;
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if (wSR == 0)
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{
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wSR = read_c0_status();
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wSR &= 0xfffffffe;
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wSR |= 0x0403;
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wGP = $GP;
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}
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if ((rt_uint32_t) stack_addr & 0x7)
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{
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stack_addr = (rt_uint8_t *)((rt_uint32_t)stack_addr - 4);
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}
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argCtx = (mips_arg_ctx *)((rt_uint32_t)stack_addr - sizeof(mips_arg_ctx));
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regCtx = (mips_reg_ctx *)((rt_uint32_t)stack_addr - sizeof(mips_arg_ctx) - sizeof(mips_reg_ctx));
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for (i = 0; i < 4; ++i)
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{
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argCtx->args[i] = i;
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}
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//±£´æͨÓüĴæÆ÷
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for (i = 0; i < 32; ++i)
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{
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regCtx->regs[i] = i;
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}
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regCtx->regs[REG_SP] = (rt_uint32_t)stack_addr;
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regCtx->regs[REG_A0] = (rt_uint32_t)parameter;
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regCtx->regs[REG_GP] = (rt_uint32_t)wGP;
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regCtx->regs[REG_FP] = (rt_uint32_t)0x0;
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regCtx->regs[REG_RA] = (rt_uint32_t)texit;
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regCtx->CP0DataLO = 0x00;
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regCtx->CP0DataHI = 0x00;
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regCtx->CP0Cause = read_c0_cause();
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regCtx->CP0Status = wSR;
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regCtx->CP0EPC = (rt_uint32_t)tentry;
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regCtx->CP0BadVAddr= 0x00;
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return (rt_uint8_t *)(regCtx);
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}
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