xref: /openbmc/linux/arch/sh/boards/mach-hp6xx/setup.c (revision aaf9128a)
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 */
25 static 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 
42 static 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 
49 static struct platform_device jornadakbd_device = {
50 	.name		= "jornada680_kbd",
51 	.id		= -1,
52 };
53 
dac_audio_start(struct dac_audio_pdata * pdata)54 static 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 
dac_audio_stop(struct dac_audio_pdata * pdata)72 static 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 
91 static 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 
98 static 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 
107 static struct platform_device *hp6xx_devices[] __initdata = {
108 	&cf_ide_device,
109 	&jornadakbd_device,
110 	&dac_audio_device,
111 };
112 
hp6xx_init_irq(void)113 static void __init hp6xx_init_irq(void)
114 {
115 	/* Gets touchscreen and powerbutton IRQ working */
116 	plat_irq_setup_pins(IRQ_MODE_IRQ);
117 }
118 
hp6xx_devices_setup(void)119 static int __init hp6xx_devices_setup(void)
120 {
121 	return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
122 }
123 
hp6xx_setup(char ** cmdline_p)124 static 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 }
165 device_initcall(hp6xx_devices_setup);
166 
167 static 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