Linux Kernel  3.7.1
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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 <[email protected]>
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);
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);
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 */
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);
137 #ifndef CONFIG_HD64461_ENABLER
139 #endif
140  outw(v, HD64461_STBCR);
141  v = inw(HD64461_GPADR);
143  outw(v, HD64461_GPADR);
144 
146 
147 #ifndef CONFIG_HD64461_ENABLER
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);
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 };