1 /*
2 * Setup pointers to hardware-dependent routines.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 1996, 1997, 1998, 2001, 07, 08 by Ralf Baechle
9 * Copyright (C) 2001 MIPS Technologies, Inc.
10 * Copyright (C) 2007 by Thomas Bogendoerfer
11 */
12 #include <linux/eisa.h>
13 #include <linux/init.h>
14 #include <linux/ioport.h>
15 #include <linux/console.h>
16 #include <linux/screen_info.h>
17 #include <linux/platform_device.h>
18 #include <linux/serial_8250.h>
19
20 #include <asm/jazz.h>
21 #include <asm/jazzdma.h>
22 #include <asm/reboot.h>
23 #include <asm/pgtable.h>
24
25 extern asmlinkage void jazz_handle_int(void);
26
27 extern void jazz_machine_restart(char *command);
28
29 static struct resource jazz_io_resources[] = {
30 {
31 .start = 0x00,
32 .end = 0x1f,
33 .name = "dma1",
34 .flags = IORESOURCE_BUSY
35 }, {
36 .start = 0x40,
37 .end = 0x5f,
38 .name = "timer",
39 .flags = IORESOURCE_BUSY
40 }, {
41 .start = 0x80,
42 .end = 0x8f,
43 .name = "dma page reg",
44 .flags = IORESOURCE_BUSY
45 }, {
46 .start = 0xc0,
47 .end = 0xdf,
48 .name = "dma2",
49 .flags = IORESOURCE_BUSY
50 }
51 };
52
plat_mem_setup(void)53 void __init plat_mem_setup(void)
54 {
55 int i;
56
57 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
58 add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
59 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
60 add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
61 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
62 add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
63
64 set_io_port_base(JAZZ_PORT_BASE);
65 #ifdef CONFIG_EISA
66 EISA_bus = 1;
67 #endif
68
69 /* request I/O space for devices used on all i[345]86 PCs */
70 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
71 request_resource(&ioport_resource, jazz_io_resources + i);
72
73 /* The RTC is outside the port address space */
74
75 _machine_restart = jazz_machine_restart;
76
77 #ifdef CONFIG_VT
78 screen_info = (struct screen_info) {
79 .orig_video_cols = 160,
80 .orig_video_lines = 64,
81 .orig_video_points = 16,
82 };
83 #endif
84
85 add_preferred_console("ttyS", 0, "9600");
86 }
87
88 #ifdef CONFIG_OLIVETTI_M700
89 #define UART_CLK 1843200
90 #else
91 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
92 exactly which ones ... XXX */
93 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
94 #endif
95
96 #define MEMPORT(_base, _irq) \
97 { \
98 .mapbase = (_base), \
99 .membase = (void *)(_base), \
100 .irq = (_irq), \
101 .uartclk = UART_CLK, \
102 .iotype = UPIO_MEM, \
103 .flags = UPF_BOOT_AUTOCONF, \
104 }
105
106 static struct plat_serial8250_port jazz_serial_data[] = {
107 MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
108 MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
109 { },
110 };
111
112 static struct platform_device jazz_serial8250_device = {
113 .name = "serial8250",
114 .id = PLAT8250_DEV_PLATFORM,
115 .dev = {
116 .platform_data = jazz_serial_data,
117 },
118 };
119
120 static struct resource jazz_esp_rsrc[] = {
121 {
122 .start = JAZZ_SCSI_BASE,
123 .end = JAZZ_SCSI_BASE + 31,
124 .flags = IORESOURCE_MEM
125 },
126 {
127 .start = JAZZ_SCSI_DMA,
128 .end = JAZZ_SCSI_DMA,
129 .flags = IORESOURCE_MEM
130 },
131 {
132 .start = JAZZ_SCSI_IRQ,
133 .end = JAZZ_SCSI_IRQ,
134 .flags = IORESOURCE_IRQ
135 }
136 };
137
138 static struct platform_device jazz_esp_pdev = {
139 .name = "jazz_esp",
140 .num_resources = ARRAY_SIZE(jazz_esp_rsrc),
141 .resource = jazz_esp_rsrc
142 };
143
144 static struct resource jazz_sonic_rsrc[] = {
145 {
146 .start = JAZZ_ETHERNET_BASE,
147 .end = JAZZ_ETHERNET_BASE + 0xff,
148 .flags = IORESOURCE_MEM
149 },
150 {
151 .start = JAZZ_ETHERNET_IRQ,
152 .end = JAZZ_ETHERNET_IRQ,
153 .flags = IORESOURCE_IRQ
154 }
155 };
156
157 static struct platform_device jazz_sonic_pdev = {
158 .name = "jazzsonic",
159 .num_resources = ARRAY_SIZE(jazz_sonic_rsrc),
160 .resource = jazz_sonic_rsrc
161 };
162
163 static struct resource jazz_cmos_rsrc[] = {
164 {
165 .start = 0x70,
166 .end = 0x71,
167 .flags = IORESOURCE_IO
168 },
169 {
170 .start = 8,
171 .end = 8,
172 .flags = IORESOURCE_IRQ
173 }
174 };
175
176 static struct platform_device jazz_cmos_pdev = {
177 .name = "rtc_cmos",
178 .num_resources = ARRAY_SIZE(jazz_cmos_rsrc),
179 .resource = jazz_cmos_rsrc
180 };
181
182 static struct platform_device pcspeaker_pdev = {
183 .name = "pcspkr",
184 .id = -1,
185 };
186
jazz_setup_devinit(void)187 static int __init jazz_setup_devinit(void)
188 {
189 platform_device_register(&jazz_serial8250_device);
190 platform_device_register(&jazz_esp_pdev);
191 platform_device_register(&jazz_sonic_pdev);
192 platform_device_register(&jazz_cmos_pdev);
193 platform_device_register(&pcspeaker_pdev);
194
195 return 0;
196 }
197
198 device_initcall(jazz_setup_devinit);
199