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

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  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 
 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 
 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 
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 
119 static int __init hp6xx_devices_setup(void)
120 {
121         return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
122 }
123 
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 

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