[netwatch.git] / ich7 / smm-open-ich7.c

/* smm-open-ich7.c
 * SMRAM open utility for Intel 82865 northbridge
 * NetWatch system management mode administration console
 *
 * Copyright (c) 2008 Jacob Potter and Joshua Wise.  All rights reserved.
 * This program is free software; you can redistribute and/or modify it under
 * the terms found in the file LICENSE in the root of this source tree. 
 *
 */

#include "reg-82865.h"

void main()
{
	unsigned char smramc, esmramc;
	unsigned int toud;
	
	smramc = pci_read8(0, 0, 0, SMRAMC);
	esmramc = pci_read8(0, 0, 0, ESMRAMC);
	
	toud = (pci_read16(0, 0, 0, 0xC4) >> 3) << 19;
	printf("Usable DRAM: %d bytes\n", toud);
	
	printf("SMRAMC: %02x\n", smramc);
	printf("ESMRAMC: %02x\n", smramc);
	if (smramc & SMRAMC_LOCK)
	{
		printf("SMRAM is locked, cannot load anything :-(\n");
		return;
	}
}
Commit	Line	Data
f1584bb0 JW	1	/* smm-open-ich7.c
	2	* SMRAM open utility for Intel 82865 northbridge
	3	* NetWatch system management mode administration console
	4	*
	5	* Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved.
	6	* This program is free software; you can redistribute and/or modify it under
	7	* the terms found in the file LICENSE in the root of this source tree.
	8	*
	9	*/
	10
90d08965 JW	11	#include "reg-82865.h"
	12
	13	void main()
	14	{
	15	unsigned char smramc, esmramc;
	16	unsigned int toud;
	17
	18	smramc = pci_read8(0, 0, 0, SMRAMC);
	19	esmramc = pci_read8(0, 0, 0, ESMRAMC);
	20
	21	toud = (pci_read16(0, 0, 0, 0xC4) >> 3) << 19;
	22	printf("Usable DRAM: %d bytes\n", toud);
	23
	24	printf("SMRAMC: %02x\n", smramc);
	25	printf("ESMRAMC: %02x\n", smramc);
	26	if (smramc & SMRAMC_LOCK)
	27	{
	28	printf("SMRAM is locked, cannot load anything :-(\n");
	29	return;
	30	}
f1584bb0	31	}