Quelle  setup.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * linux/arch/sh/boards/hp6xx/setup.c
 *
 * Copyright (C) 2002 Andriy Skulysh
 * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
 *
 * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
 */
#include <linux/types.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/sh_intc.h>
#include <sound/sh_dac_audio.h>
#include <asm/hd64461.h>
#include <asm/io.h>
#include <mach/hp6xx.h>
#include <cpu/dac.h>

#define SCPCR 0xa4000116
#define SCPDR 0xa4000136

/* CF Slot */
static struct resource cf_ide_resources[] = {
 [0] = {
  .start = 0x15000000 + 0x1f0,
  .end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
  .flags = IORESOURCE_MEM,
 },
 [1] = {
  .start = 0x15000000 + 0x1fe,
  .end   = 0x15000000 + 0x1fe + 0x01,
  .flags = IORESOURCE_MEM,
 },
 [2] = {
  .start = evt2irq(0xba0),
  .flags = IORESOURCE_IRQ,
 },
};

static struct platform_device cf_ide_device = {
 .name  =  "pata_platform",
 .id  =  -1,
 .num_resources = ARRAY_SIZE(cf_ide_resources),
 .resource = cf_ide_resources,
};

static struct platform_device jornadakbd_device = {
 .name  = "jornada680_kbd",
 .id  = -1,
};

static void dac_audio_start(struct dac_audio_pdata *pdata)
{
 u16 v;
 u8 v8;

 /* HP Jornada 680/690 speaker on */
 v = inw(HD64461_GPADR);
 v &= ~HD64461_GPADR_SPEAKER;
 outw(v, HD64461_GPADR);

 /* HP Palmtop 620lx/660lx speaker on */
 v8 = inb(PKDR);
 v8 &= ~PKDR_SPEAKER;
 outb(v8, PKDR);

 sh_dac_enable(pdata->channel);
}

static void dac_audio_stop(struct dac_audio_pdata *pdata)
{
 u16 v;
 u8 v8;

 /* HP Jornada 680/690 speaker off */
 v = inw(HD64461_GPADR);
 v |= HD64461_GPADR_SPEAKER;
 outw(v, HD64461_GPADR);

 /* HP Palmtop 620lx/660lx speaker off */
 v8 = inb(PKDR);
 v8 |= PKDR_SPEAKER;
 outb(v8, PKDR);

 sh_dac_output(0, pdata->channel);
 sh_dac_disable(pdata->channel);
}

static struct dac_audio_pdata dac_audio_platform_data = {
 .buffer_size  = 64000,
 .channel  = 1,
 .start   = dac_audio_start,
 .stop   = dac_audio_stop,
};

static struct platform_device dac_audio_device = {
 .name  = "dac_audio",
 .id  = -1,
 .dev  = {
  .platform_data = &dac_audio_platform_data,
 }

};

static struct platform_device *hp6xx_devices[] __initdata = {
 &cf_ide_device,
 &jornadakbd_device,
 &dac_audio_device,
};

static void __init hp6xx_init_irq(void)
{
 /* Gets touchscreen and powerbutton IRQ working */
 plat_irq_setup_pins(IRQ_MODE_IRQ);
}

static int __init hp6xx_devices_setup(void)
{
 return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
}

static void __init hp6xx_setup(char **cmdline_p)
{
 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 = __raw_readb(DACR);
 v8 &= ~DACR_DAE;
 __raw_writeb(v8,DACR);

 v8 = __raw_readb(SCPDR);
 v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
 v8 &= ~SCPDR_TS_SCAN_ENABLE;
 __raw_writeb(v8, SCPDR);

 v = __raw_readw(SCPCR);
 v &= ~SCPCR_TS_MASK;
 v |= SCPCR_TS_ENABLE;
 __raw_writew(v, SCPCR);
}
device_initcall(hp6xx_devices_setup);

static struct sh_machine_vector mv_hp6xx __initmv = {
 .mv_name = "hp6xx",
 .mv_setup = hp6xx_setup,
 /* Enable IRQ0 -> IRQ3 in IRQ_MODE */
 .mv_init_irq = hp6xx_init_irq,
};