Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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/platform_device.h>
17#include <linux/serial_8250.h>
18#include <linux/dma-mapping.h>
19#include <linux/pgtable.h>
20
21#include <asm/jazz.h>
22#include <asm/jazzdma.h>
23#include <asm/reboot.h>
24#include <asm/tlbmisc.h>
25
26extern void jazz_machine_restart(char *command);
27
28static struct resource jazz_io_resources[] = {
29 {
30 .start = 0x00,
31 .end = 0x1f,
32 .name = "dma1",
33 .flags = IORESOURCE_IO | IORESOURCE_BUSY
34 }, {
35 .start = 0x40,
36 .end = 0x5f,
37 .name = "timer",
38 .flags = IORESOURCE_IO | IORESOURCE_BUSY
39 }, {
40 .start = 0x80,
41 .end = 0x8f,
42 .name = "dma page reg",
43 .flags = IORESOURCE_IO | IORESOURCE_BUSY
44 }, {
45 .start = 0xc0,
46 .end = 0xdf,
47 .name = "dma2",
48 .flags = IORESOURCE_IO | IORESOURCE_BUSY
49 }
50};
51
52void __init plat_mem_setup(void)
53{
54 int i;
55
56 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
57 add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K);
58 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
59 add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M);
60 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
61 add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M);
62
63 set_io_port_base(JAZZ_PORT_BASE);
64#ifdef CONFIG_EISA
65 EISA_bus = 1;
66#endif
67
68 /* request I/O space for devices used on all i[345]86 PCs */
69 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
70 request_resource(&ioport_resource, jazz_io_resources + i);
71
72 /* The RTC is outside the port address space */
73
74 _machine_restart = jazz_machine_restart;
75
76 add_preferred_console("ttyS", 0, "9600");
77}
78
79#ifdef CONFIG_OLIVETTI_M700
80#define UART_CLK 1843200
81#else
82/* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
83 exactly which ones ... XXX */
84#define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */
85#endif
86
87#define MEMPORT(_base, _irq) \
88 { \
89 .mapbase = (_base), \
90 .membase = (void *)(_base), \
91 .irq = (_irq), \
92 .uartclk = UART_CLK, \
93 .iotype = UPIO_MEM, \
94 .flags = UPF_BOOT_AUTOCONF, \
95 }
96
97static struct plat_serial8250_port jazz_serial_data[] = {
98 MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ),
99 MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ),
100 { },
101};
102
103static struct platform_device jazz_serial8250_device = {
104 .name = "serial8250",
105 .id = PLAT8250_DEV_PLATFORM,
106 .dev = {
107 .platform_data = jazz_serial_data,
108 },
109};
110
111static struct resource jazz_esp_rsrc[] = {
112 {
113 .start = JAZZ_SCSI_BASE,
114 .end = JAZZ_SCSI_BASE + 31,
115 .flags = IORESOURCE_MEM
116 },
117 {
118 .start = JAZZ_SCSI_DMA,
119 .end = JAZZ_SCSI_DMA,
120 .flags = IORESOURCE_MEM
121 },
122 {
123 .start = JAZZ_SCSI_IRQ,
124 .end = JAZZ_SCSI_IRQ,
125 .flags = IORESOURCE_IRQ
126 }
127};
128
129static u64 jazz_esp_dma_mask = DMA_BIT_MASK(32);
130
131static struct platform_device jazz_esp_pdev = {
132 .name = "jazz_esp",
133 .num_resources = ARRAY_SIZE(jazz_esp_rsrc),
134 .resource = jazz_esp_rsrc,
135 .dev = {
136 .dma_mask = &jazz_esp_dma_mask,
137 .coherent_dma_mask = DMA_BIT_MASK(32),
138 }
139};
140
141static struct resource jazz_sonic_rsrc[] = {
142 {
143 .start = JAZZ_ETHERNET_BASE,
144 .end = JAZZ_ETHERNET_BASE + 0xff,
145 .flags = IORESOURCE_MEM
146 },
147 {
148 .start = JAZZ_ETHERNET_IRQ,
149 .end = JAZZ_ETHERNET_IRQ,
150 .flags = IORESOURCE_IRQ
151 }
152};
153
154static u64 jazz_sonic_dma_mask = DMA_BIT_MASK(32);
155
156static struct platform_device jazz_sonic_pdev = {
157 .name = "jazzsonic",
158 .num_resources = ARRAY_SIZE(jazz_sonic_rsrc),
159 .resource = jazz_sonic_rsrc,
160 .dev = {
161 .dma_mask = &jazz_sonic_dma_mask,
162 .coherent_dma_mask = DMA_BIT_MASK(32),
163 }
164};
165
166static struct resource jazz_cmos_rsrc[] = {
167 {
168 .start = 0x70,
169 .end = 0x71,
170 .flags = IORESOURCE_IO
171 },
172 {
173 .start = 8,
174 .end = 8,
175 .flags = IORESOURCE_IRQ
176 }
177};
178
179static struct platform_device jazz_cmos_pdev = {
180 .name = "rtc_cmos",
181 .num_resources = ARRAY_SIZE(jazz_cmos_rsrc),
182 .resource = jazz_cmos_rsrc
183};
184
185static struct platform_device pcspeaker_pdev = {
186 .name = "pcspkr",
187 .id = -1,
188};
189
190static int __init jazz_setup_devinit(void)
191{
192 platform_device_register(&jazz_serial8250_device);
193 platform_device_register(&jazz_esp_pdev);
194 platform_device_register(&jazz_sonic_pdev);
195 platform_device_register(&jazz_cmos_pdev);
196 platform_device_register(&pcspeaker_pdev);
197
198 return 0;
199}
200
201device_initcall(jazz_setup_devinit);