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 */
25static 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
42static 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
49static struct platform_device jornadakbd_device = {
50	.name		= "jornada680_kbd",
51	.id		= -1,
52};
53
54static 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
72static 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
91static 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
98static 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
107static struct platform_device *hp6xx_devices[] __initdata = {
108	&cf_ide_device,
109	&jornadakbd_device,
110	&dac_audio_device,
111};
112
113static void __init hp6xx_init_irq(void)
114{
115	/* Gets touchscreen and powerbutton IRQ working */
116	plat_irq_setup_pins(IRQ_MODE_IRQ);
117}
118
119static int __init hp6xx_devices_setup(void)
120{
121	return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
122}
123
124static 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}
165device_initcall(hp6xx_devices_setup);
166
167static 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