LXR linux/arch/sh/boards/mach-hp6xx/setup.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * linux/arch/sh/boards/hp6xx/setup.c
   4 *
   5 * Copyright (C) 2002 Andriy Skulysh
   6 * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
   7 *
   8 * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
   9 */
  10#include <linux/types.h>
  11#include <linux/init.h>
  12#include <linux/platform_device.h>
  13#include <linux/irq.h>
  14#include <linux/sh_intc.h>
  15#include <sound/sh_dac_audio.h>
  16#include <asm/hd64461.h>
  17#include <asm/io.h>
  18#include <mach/hp6xx.h>
  19#include <cpu/dac.h>
  20
  21#define SCPCR   0xa4000116
  22#define SCPDR   0xa4000136
  23
  24/* CF Slot */
  25static struct resource cf_ide_resources[] = {
  26        [0] = {
  27                .start = 0x15000000 + 0x1f0,
  28                .end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
  29                .flags = IORESOURCE_MEM,
  30        },
  31        [1] = {
  32                .start = 0x15000000 + 0x1fe,
  33                .end   = 0x15000000 + 0x1fe + 0x01,
  34                .flags = IORESOURCE_MEM,
  35        },
  36        [2] = {
  37                .start = evt2irq(0xba0),
  38                .flags = IORESOURCE_IRQ,
  39        },
  40};
  41
  42static struct platform_device cf_ide_device = {
  43        .name           =  "pata_platform",
  44        .id             =  -1,
  45        .num_resources  = ARRAY_SIZE(cf_ide_resources),
  46        .resource       = cf_ide_resources,
  47};
  48
  49static struct platform_device jornadakbd_device = {
  50        .name           = "jornada680_kbd",
  51        .id             = -1,
  52};
  53
  54static void dac_audio_start(struct dac_audio_pdata *pdata)
  55{
  56        u16 v;
  57        u8 v8;
  58
  59        /* HP Jornada 680/690 speaker on */
  60        v = inw(HD64461_GPADR);
  61        v &= ~HD64461_GPADR_SPEAKER;
  62        outw(v, HD64461_GPADR);
  63
  64        /* HP Palmtop 620lx/660lx speaker on */
  65        v8 = inb(PKDR);
  66        v8 &= ~PKDR_SPEAKER;
  67        outb(v8, PKDR);
  68
  69        sh_dac_enable(pdata->channel);
  70}
  71
  72static void dac_audio_stop(struct dac_audio_pdata *pdata)
  73{
  74        u16 v;
  75        u8 v8;
  76
  77        /* HP Jornada 680/690 speaker off */
  78        v = inw(HD64461_GPADR);
  79        v |= HD64461_GPADR_SPEAKER;
  80        outw(v, HD64461_GPADR);
  81
  82        /* HP Palmtop 620lx/660lx speaker off */
  83        v8 = inb(PKDR);
  84        v8 |= PKDR_SPEAKER;
  85        outb(v8, PKDR);
  86
  87        sh_dac_output(0, pdata->channel);
  88        sh_dac_disable(pdata->channel);
  89}
  90
  91static struct dac_audio_pdata dac_audio_platform_data = {
  92        .buffer_size            = 64000,
  93        .channel                = 1,
  94        .start                  = dac_audio_start,
  95        .stop                   = dac_audio_stop,
  96};
  97
  98static struct platform_device dac_audio_device = {
  99        .name           = "dac_audio",
 100        .id             = -1,
 101        .dev            = {
 102                .platform_data  = &dac_audio_platform_data,
 103        }
 104
 105};
 106
 107static struct platform_device *hp6xx_devices[] __initdata = {
 108        &cf_ide_device,
 109        &jornadakbd_device,
 110        &dac_audio_device,
 111};
 112
 113static void __init hp6xx_init_irq(void)
 114{
 115        /* Gets touchscreen and powerbutton IRQ working */
 116        plat_irq_setup_pins(IRQ_MODE_IRQ);
 117}
 118
 119static int __init hp6xx_devices_setup(void)
 120{
 121        return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
 122}
 123
 124static void __init hp6xx_setup(char **cmdline_p)
 125{
 126        u8 v8;
 127        u16 v;
 128
 129        v = inw(HD64461_STBCR);
 130        v |=    HD64461_STBCR_SURTST | HD64461_STBCR_SIRST      |
 131                HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST     |
 132                HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST     |
 133                HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
 134                HD64461_STBCR_SAFECKE_IST;
 135#ifndef CONFIG_HD64461_ENABLER
 136        v |= HD64461_STBCR_SPC1ST;
 137#endif
 138        outw(v, HD64461_STBCR);
 139        v = inw(HD64461_GPADR);
 140        v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
 141        outw(v, HD64461_GPADR);
 142
 143        outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
 144
 145#ifndef CONFIG_HD64461_ENABLER
 146        outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
 147#endif
 148
 149        sh_dac_output(0, DAC_SPEAKER_VOLUME);
 150        sh_dac_disable(DAC_SPEAKER_VOLUME);
 151        v8 = __raw_readb(DACR);
 152        v8 &= ~DACR_DAE;
 153        __raw_writeb(v8,DACR);
 154
 155        v8 = __raw_readb(SCPDR);
 156        v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
 157        v8 &= ~SCPDR_TS_SCAN_ENABLE;
 158        __raw_writeb(v8, SCPDR);
 159
 160        v = __raw_readw(SCPCR);
 161        v &= ~SCPCR_TS_MASK;
 162        v |= SCPCR_TS_ENABLE;
 163        __raw_writew(v, SCPCR);
 164}
 165device_initcall(hp6xx_devices_setup);
 166
 167static struct sh_machine_vector mv_hp6xx __initmv = {
 168        .mv_name = "hp6xx",
 169        .mv_setup = hp6xx_setup,
 170        /* Enable IRQ0 -> IRQ3 in IRQ_MODE */
 171        .mv_init_irq = hp6xx_init_irq,
 172};
 173