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