reset.c

来自「SAMSUNG S3C6410 CPU BSP for winmobile6」· C语言 代码 · 共 61 行

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
// NOTE: stubs are being used - this isn't done

#include <windows.h>
#include <s3c6410.h>
#include <bsp.h>
#include <pmplatform.h>

#ifdef DVS_EN
// DVS control function in "\common\timer\dvs.c"
extern void ChangeDVSLevel(SYSTEM_ACTIVE_LEVEL eLevel);
#endif

void OEMSWReset(void)
{
//
// If the board design supports software-controllable hardware reset logic, it should be
// used.  Because this routine is specific to the S3C6410 CPU, it only uses the watchdog
// timer to assert reset.  One downside to this approach is that nRSTOUT isn't asserted
// so any board-level logic isn't reset via this method.  This routine can be overidden in
// the specific platform code to control board-level reset logic, should it exist.
//

	volatile S3C6410_SYSCON_REG *pSysConReg = (S3C6410_SYSCON_REG *)OALPAtoVA(S3C6410_BASE_REG_PA_SYSCON, FALSE);

	OALMSG(TRUE, (L"[OEM] ++OEMSWReset()\r\n"));

	//-----------------------------
	// Disable DVS and Set to Full Speed
	//-----------------------------
#ifdef DVS_EN
	ChangeDVSLevel(SYS_L0);
#endif

	// HCLK_IROM, HCLK_MEM1, HCLK_MEM0, HCLK_MFC Should be Always On for power Mode (Something coupled with BUS operation)
	pSysConReg->HCLK_GATE |= ((1<<25)|(1<<22)|(1<<21)|(1<<0));

	// Generate Software Reset
	pSysConReg->SW_RST = 0x6410;

	// Wait for Reset
	//
	while(1);

	// Should Never Get Here
	//
	OALMSG(TRUE, (L"[OEM] --OEMSWReset() : Do Not See Me !!!!!! \r\n"));
}

//------------------------------------------------------------------------------