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

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  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 };
175 

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