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

   1 /*
   2  * linux/arch/sh/boards/hp6xx/setup.c
   3  *
   4  * Copyright (C) 2002 Andriy Skulysh
   5  * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
   6  *
   7  * May be copied or modified under the terms of the GNU General Public
   8  * License.  See linux/COPYING for more information.
   9  *
  10  * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
  11  */
  12 #include <linux/types.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/irq.h>
  16 #include <sound/sh_dac_audio.h>
  17 #include <asm/hd64461.h>
  18 #include <asm/io.h>
  19 #include <mach/hp6xx.h>
  20 #include <cpu/dac.h>
  21
  22 #define SCPCR   0xa4000116
  23 #define SCPDR   0xa4000136
  24
  25 /* CF Slot */
  26 static struct resource cf_ide_resources[] = {
  27         [0] = {
  28                 .start = 0x15000000 + 0x1f0,
  29                 .end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
  30                 .flags = IORESOURCE_MEM,
  31         },
  32         [1] = {
  33                 .start = 0x15000000 + 0x1fe,
  34                 .end   = 0x15000000 + 0x1fe + 0x01,
  35                 .flags = IORESOURCE_MEM,
  36         },
  37         [2] = {
  38                 .start = 77,
  39                 .flags = IORESOURCE_IRQ,
  40         },
  41 };
  42
  43 static struct platform_device cf_ide_device = {
  44         .name           =  "pata_platform",
  45         .id             =  -1,
  46         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  47         .resource       = cf_ide_resources,
  48 };
  49
  50 static struct platform_device jornadakbd_device = {
  51         .name           = "jornada680_kbd",
  52         .id             = -1,
  53 };
  54
  55 static void dac_audio_start(struct dac_audio_pdata *pdata)
  56 {
  57         u16 v;
  58         u8 v8;
  59
  60         /* HP Jornada 680/690 speaker on */
  61         v = inw(HD64461_GPADR);
  62         v &= ~HD64461_GPADR_SPEAKER;
  63         outw(v, HD64461_GPADR);
  64
  65         /* HP Palmtop 620lx/660lx speaker on */
  66         v8 = inb(PKDR);
  67         v8 &= ~PKDR_SPEAKER;
  68         outb(v8, PKDR);
  69
  70         sh_dac_enable(pdata->channel);
  71 }
  72
  73 static void dac_audio_stop(struct dac_audio_pdata *pdata)
  74 {
  75         u16 v;
  76         u8 v8;
  77
  78         /* HP Jornada 680/690 speaker off */
  79         v = inw(HD64461_GPADR);
  80         v |= HD64461_GPADR_SPEAKER;
  81         outw(v, HD64461_GPADR);
  82
  83         /* HP Palmtop 620lx/660lx speaker off */
  84         v8 = inb(PKDR);
  85         v8 |= PKDR_SPEAKER;
  86         outb(v8, PKDR);
  87
  88         sh_dac_output(0, pdata->channel);
  89         sh_dac_disable(pdata->channel);
  90 }
  91
  92 static struct dac_audio_pdata dac_audio_platform_data = {
  93         .buffer_size            = 64000,
  94         .channel                = 1,
  95         .start                  = dac_audio_start,
  96         .stop                   = dac_audio_stop,
  97 };
  98
  99 static struct platform_device dac_audio_device = {
 100         .name           = "dac_audio",
 101         .id             = -1,
 102         .dev            = {
 103                 .platform_data  = &dac_audio_platform_data,
 104         }
 105
 106 };
 107
 108 static struct platform_device *hp6xx_devices[] __initdata = {
 109         &cf_ide_device,
 110         &jornadakbd_device,
 111         &dac_audio_device,
 112 };
 113
 114 static void __init hp6xx_init_irq(void)
 115 {
 116         /* Gets touchscreen and powerbutton IRQ working */
 117         plat_irq_setup_pins(IRQ_MODE_IRQ);
 118 }
 119
 120 static int __init hp6xx_devices_setup(void)
 121 {
 122         return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
 123 }
 124
 125 static void __init hp6xx_setup(char **cmdline_p)
 126 {
 127         u8 v8;
 128         u16 v;
 129
 130         v = inw(HD64461_STBCR);
 131         v |=    HD64461_STBCR_SURTST | HD64461_STBCR_SIRST      |
 132                 HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST     |
 133                 HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST     |
 134                 HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
 135                 HD64461_STBCR_SAFECKE_IST;
 136 #ifndef CONFIG_HD64461_ENABLER
 137         v |= HD64461_STBCR_SPC1ST;
 138 #endif
 139         outw(v, HD64461_STBCR);
 140         v = inw(HD64461_GPADR);
 141         v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
 142         outw(v, HD64461_GPADR);
 143
 144         outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
 145
 146 #ifndef CONFIG_HD64461_ENABLER
 147         outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
 148 #endif
 149
 150         sh_dac_output(0, DAC_SPEAKER_VOLUME);
 151         sh_dac_disable(DAC_SPEAKER_VOLUME);
 152         v8 = __raw_readb(DACR);
 153         v8 &= ~DACR_DAE;
 154         __raw_writeb(v8,DACR);
 155
 156         v8 = __raw_readb(SCPDR);
 157         v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
 158         v8 &= ~SCPDR_TS_SCAN_ENABLE;
 159         __raw_writeb(v8, SCPDR);
 160
 161         v = __raw_readw(SCPCR);
 162         v &= ~SCPCR_TS_MASK;
 163         v |= SCPCR_TS_ENABLE;
 164         __raw_writew(v, SCPCR);
 165 }
 166 device_initcall(hp6xx_devices_setup);
 167
 168 static struct sh_machine_vector mv_hp6xx __initmv = {
 169         .mv_name = "hp6xx",
 170         .mv_setup = hp6xx_setup,
 171         /* IRQ's : CPU(64) + CCHIP(16) + FREE_TO_USE(6) */
 172         .mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM + 6,
 173         /* Enable IRQ0 -> IRQ3 in IRQ_MODE */
 174         .mv_init_irq = hp6xx_init_irq,
 175 };