kernel/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 <linux/sh_intc.h>
  17 #include <sound/sh_dac_audio.h>
  18 #include <asm/hd64461.h>
  19 #include <asm/io.h>
  20 #include <mach/hp6xx.h>
  21 #include <cpu/dac.h>
  22
  23 #define SCPCR   0xa4000116
  24 #define SCPDR   0xa4000136
  25
  26 /* CF Slot */
  27 static struct resource cf_ide_resources[] = {
  28         [0] = {
  29                 .start = 0x15000000 + 0x1f0,
  30                 .end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
  31                 .flags = IORESOURCE_MEM,
  32         },
  33         [1] = {
  34                 .start = 0x15000000 + 0x1fe,
  35                 .end   = 0x15000000 + 0x1fe + 0x01,
  36                 .flags = IORESOURCE_MEM,
  37         },
  38         [2] = {
  39                 .start = evt2irq(0xba0),
  40                 .flags = IORESOURCE_IRQ,
  41         },
  42 };
  43
  44 static struct platform_device cf_ide_device = {
  45         .name           =  "pata_platform",
  46         .id             =  -1,
  47         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  48         .resource       = cf_ide_resources,
  49 };
  50
  51 static struct platform_device jornadakbd_device = {
  52         .name           = "jornada680_kbd",
  53         .id             = -1,
  54 };
  55
  56 static void dac_audio_start(struct dac_audio_pdata *pdata)
  57 {
  58         u16 v;
  59         u8 v8;
  60
  61         /* HP Jornada 680/690 speaker on */
  62         v = inw(HD64461_GPADR);
  63         v &= ~HD64461_GPADR_SPEAKER;
  64         outw(v, HD64461_GPADR);
  65
  66         /* HP Palmtop 620lx/660lx speaker on */
  67         v8 = inb(PKDR);
  68         v8 &= ~PKDR_SPEAKER;
  69         outb(v8, PKDR);
  70
  71         sh_dac_enable(pdata->channel);
  72 }
  73
  74 static void dac_audio_stop(struct dac_audio_pdata *pdata)
  75 {
  76         u16 v;
  77         u8 v8;
  78
  79         /* HP Jornada 680/690 speaker off */
  80         v = inw(HD64461_GPADR);
  81         v |= HD64461_GPADR_SPEAKER;
  82         outw(v, HD64461_GPADR);
  83
  84         /* HP Palmtop 620lx/660lx speaker off */
  85         v8 = inb(PKDR);
  86         v8 |= PKDR_SPEAKER;
  87         outb(v8, PKDR);
  88
  89         sh_dac_output(0, pdata->channel);
  90         sh_dac_disable(pdata->channel);
  91 }
  92
  93 static struct dac_audio_pdata dac_audio_platform_data = {
  94         .buffer_size            = 64000,
  95         .channel                = 1,
  96         .start                  = dac_audio_start,
  97         .stop                   = dac_audio_stop,
  98 };
  99
 100 static struct platform_device dac_audio_device = {
 101         .name           = "dac_audio",
 102         .id             = -1,
 103         .dev            = {
 104                 .platform_data  = &dac_audio_platform_data,
 105         }
 106
 107 };
 108
 109 static struct platform_device *hp6xx_devices[] __initdata = {
 110         &cf_ide_device,
 111         &jornadakbd_device,
 112         &dac_audio_device,
 113 };
 114
 115 static void __init hp6xx_init_irq(void)
 116 {
 117         /* Gets touchscreen and powerbutton IRQ working */
 118         plat_irq_setup_pins(IRQ_MODE_IRQ);
 119 }
 120
 121 static int __init hp6xx_devices_setup(void)
 122 {
 123         return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
 124 }
 125
 126 static void __init hp6xx_setup(char **cmdline_p)
 127 {
 128         u8 v8;
 129         u16 v;
 130
 131         v = inw(HD64461_STBCR);
 132         v |=    HD64461_STBCR_SURTST | HD64461_STBCR_SIRST      |
 133                 HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST     |
 134                 HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST     |
 135                 HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
 136                 HD64461_STBCR_SAFECKE_IST;
 137 #ifndef CONFIG_HD64461_ENABLER
 138         v |= HD64461_STBCR_SPC1ST;
 139 #endif
 140         outw(v, HD64461_STBCR);
 141         v = inw(HD64461_GPADR);
 142         v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
 143         outw(v, HD64461_GPADR);
 144
 145         outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
 146
 147 #ifndef CONFIG_HD64461_ENABLER
 148         outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
 149 #endif
 150
 151         sh_dac_output(0, DAC_SPEAKER_VOLUME);
 152         sh_dac_disable(DAC_SPEAKER_VOLUME);
 153         v8 = __raw_readb(DACR);
 154         v8 &= ~DACR_DAE;
 155         __raw_writeb(v8,DACR);
 156
 157         v8 = __raw_readb(SCPDR);
 158         v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
 159         v8 &= ~SCPDR_TS_SCAN_ENABLE;
 160         __raw_writeb(v8, SCPDR);
 161
 162         v = __raw_readw(SCPCR);
 163         v &= ~SCPCR_TS_MASK;
 164         v |= SCPCR_TS_ENABLE;
 165         __raw_writew(v, SCPCR);
 166 }
 167 device_initcall(hp6xx_devices_setup);
 168
 169 static struct sh_machine_vector mv_hp6xx __initmv = {
 170         .mv_name = "hp6xx",
 171         .mv_setup = hp6xx_setup,
 172         /* Enable IRQ0 -> IRQ3 in IRQ_MODE */
 173         .mv_init_irq = hp6xx_init_irq,
 174 };