xref: /src/sys/arch/hpc/stand/hpcboot/arm/arm_arch.cpp

/*	$NetBSD: arm_arch.cpp,v 1.3.24.2 2004/09/18 14:34:39 skrll Exp $	*/

/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by UCHIYAMA Yasushi.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <arm/arm_arch.h>
#include <console.h>
#include <memory.h>
#include <arm/arm_sa1100.h>

ARMArchitecture::ARMArchitecture(Console *&cons, MemoryManager *&mem)
	: Architecture(cons, mem)
{
	DPRINTF((TEXT("ARM architecture.\n")));
}

ARMArchitecture::~ARMArchitecture(void)
{
}

void
ARMArchitecture::systemInfo()
{
	Architecture::systemInfo();

	_kmode = SetKMode(1);
	DI();
	if ((GetCPSR() & 0x1f) != 0x1f)
		DPRINTF((TEXT("can't change to System mode\n")));

	DPRINTF((TEXT("Reg0 :%08x\n"), GetCop15Reg0()));
	DPRINTF((TEXT("Reg1 :%08x\n"), GetCop15Reg1()));
	DPRINTF((TEXT("Reg2 :%08x\n"), GetCop15Reg2()));
	DPRINTF((TEXT("Reg3 :%08x\n"), GetCop15Reg3()));
	DPRINTF((TEXT("Reg5 :%08x\n"), GetCop15Reg5()));
	DPRINTF((TEXT("Reg6 :%08x\n"), GetCop15Reg6()));
	DPRINTF((TEXT("Reg13:%08x\n"), GetCop15Reg13()));
	DPRINTF((TEXT("Reg14:%08x\n"), GetCop15Reg14()));
	DPRINTF((TEXT("CPSR :%08x\n"), GetCPSR()));
	EI();
	SetKMode(_kmode);
}

BOOL
ARMArchitecture::init(void)
{
	if (!_mem->init()) {
		DPRINTF((TEXT("can't initialize memory manager.\n")));
		return FALSE;
	}
	// set D-RAM information
	_mem->loadBank(DRAM_BANK0_START, DRAM_BANK_SIZE);
	_mem->loadBank(DRAM_BANK1_START, DRAM_BANK_SIZE);
	_mem->loadBank(DRAM_BANK2_START, DRAM_BANK_SIZE);
	_mem->loadBank(DRAM_BANK3_START, DRAM_BANK_SIZE);

	return TRUE;
}

BOOL
ARMArchitecture::setupLoader()
{
	vaddr_t v;
	vsize_t sz = BOOT_FUNC_END - BOOT_FUNC_START;

	// chcek 2nd bootloader size.
	if (sz > _mem->getPageSize()) {
		DPRINTF((TEXT("2nd bootloader size(%dbyte) is larger than page size(%d).\n"),
		    sz, _mem->getPageSize()));
		return FALSE;
	}

	// get physical mapped page and copy loader to there.
	// don't writeback D-cache here. make sure to writeback before jump.
	if (!_mem->getPage(v , _loader_addr)) {
		DPRINTF((TEXT("can't get page for 2nd loader.\n")));
		return FALSE;
	}
	DPRINTF((TEXT("2nd bootloader vaddr=0x%08x paddr=0x%08x\n"),
	    (unsigned)v,(unsigned)_loader_addr));

	memcpy(reinterpret_cast <LPVOID>(v),
	    reinterpret_cast <LPVOID>(BOOT_FUNC_START), sz);
	DPRINTF((TEXT("2nd bootloader copy done.\n")));

	return TRUE;
}

void
ARMArchitecture::jump(paddr_t info, paddr_t pvec)
{
	kaddr_t sp;
	vaddr_t v;
	paddr_t p;

	// stack for bootloader
	_mem->getPage(v, p);
	sp = ptokv(p) + _mem->getPageSize();

	// writeback whole D-cache
	WritebackDCache();

	SetKMode(1);
	FlatJump(info, pvec, sp, _loader_addr);
	// NOTREACHED
}

void
ARMArchitecture::testFramebuffer()
{
	// get frame buffer address from LCD controller register.
	paddr_t fbaddr_p = _mem->readPhysical4(0xb0100010); // 0xc0002e00
	// map frame buffer
	vaddr_t fbaddr_v = _mem->mapPhysicalPage(fbaddr_p, 0x50000,
	    PAGE_READWRITE);

	// test frame buffer
	int j, k;
	DI();
	for (j = 0; j < 480; j++)
		for (k = 0; k < 640; k++)
			VOLATILE_REF8(fbaddr_v + 0x200 + j * 640 + k)
			    = j * k & 0xff;
	for (j = 120; j < 360; j++)
		for (k = 120; k < 520; k++)
			VOLATILE_REF8(fbaddr_v + 0x200 + j * 640 + k) = 0x3;
	EI();
	_mem->unmapPhysicalPage(fbaddr_v);
}

void
ARMArchitecture::testUART()
{
#define	TBY			VOLATILE_REF(uart + 0x20)
#define	UTDR			VOLATILE_REF(uart + 0x14)
#define	TBY_BUSY		while (TBY & 0x1)
#define	UTDR_PUTCHAR(c)		(UTDR =(c))
#define	_(c)								\
__BEGIN_MACRO								\
	TBY_BUSY;							\
	UTDR_PUTCHAR(c);						\
__END_MACRO
	vaddr_t uart =
	    _mem->mapPhysicalPage(0x80050000, 0x100, PAGE_READWRITE);
	_('H');_('e');_('l');_('l');_('o');_(' ');
	_('W');_('o');_('r');_('l');_('d');_('\r');_('\n');
	_mem->unmapPhysicalPage(uart);
}