linux-vybrid_public/arch/sh/boards/hp6xx/setup.c

/*
 * linux/arch/sh/boards/hp6xx/hp680/setup.c
 *
 * Copyright (C) 2002 Andriy Skulysh
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 *
 * Setup code for an HP680  (internal peripherials only)
 */
#include <linux/types.h>
#include <linux/init.h>
#include <asm/hd64461.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/hp6xx/hp6xx.h>
#include <asm/cpu/dac.h>

#define	SCPCR	0xa4000116
#define SCPDR	0xa4000136

const char *get_system_type(void)
{
	return "HP6xx";
}

int __init platform_setup(void)
{
	u8 v8;
	u16 v;

	v = inw(HD64461_STBCR);
	v |= HD64461_STBCR_SURTST | HD64461_STBCR_SIRST |
	    HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST |
	    HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST |
	    HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST |
	    HD64461_STBCR_SAFECKE_IST;
#ifndef CONFIG_HD64461_ENABLER
	v |= HD64461_STBCR_SPC1ST;
#endif
	outw(v, HD64461_STBCR);
	v = inw(HD64461_GPADR);
	v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
	outw(v, HD64461_GPADR);

	outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);

#ifndef CONFIG_HD64461_ENABLER
	outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
#endif

	sh_dac_output(0, DAC_SPEAKER_VOLUME);
	sh_dac_disable(DAC_SPEAKER_VOLUME);
	v8 = ctrl_inb(DACR);
	v8 &= ~DACR_DAE;
	ctrl_outb(v8,DACR);

	v8 = ctrl_inb(SCPDR);
	v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
	v8 &= ~SCPDR_TS_SCAN_ENABLE;
	ctrl_outb(v8, SCPDR);

	v = ctrl_inw(SCPCR);
	v &= ~SCPCR_TS_MASK;
	v |= SCPCR_TS_ENABLE;
	ctrl_outw(v, SCPCR);

	return 0;
}