Linux-2.6.12-rc2
[linux-2.6.git] / arch / arm / mach-sa1100 / cerf.c
1 /*
2  * linux/arch/arm/mach-sa1100/cerf.c
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  *
8  * Apr-2003 : Removed some old PDA crud [FB]
9  * Oct-2003 : Added uart2 resource [FB]
10  * Jan-2004 : Removed io map for flash [FB]
11  */
12
13 #include <linux/config.h>
14 #include <linux/init.h>
15 #include <linux/kernel.h>
16 #include <linux/tty.h>
17 #include <linux/device.h>
18 #include <linux/mtd/mtd.h>
19 #include <linux/mtd/partitions.h>
20
21 #include <asm/irq.h>
22 #include <asm/hardware.h>
23 #include <asm/setup.h>
24
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/flash.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/serial_sa1100.h>
30
31 #include <asm/arch/cerf.h>
32 #include "generic.h"
33
34 static struct resource cerfuart2_resources[] = {
35         [0] = {
36                 .start  = 0x80030000,
37                 .end    = 0x8003ffff,
38                 .flags  = IORESOURCE_MEM,
39         },
40 };
41
42 static struct platform_device cerfuart2_device = {
43         .name           = "sa11x0-uart",
44         .id             = 2,
45         .num_resources  = ARRAY_SIZE(cerfuart2_resources),
46         .resource       = cerfuart2_resources,
47 };
48
49 static struct platform_device *cerf_devices[] __initdata = {
50         &cerfuart2_device,
51 };
52
53 #ifdef CONFIG_SA1100_CERF_FLASH_32MB
54 #  define CERF_FLASH_SIZE       0x02000000
55 #elif defined CONFIG_SA1100_CERF_FLASH_16MB
56 #  define CERF_FLASH_SIZE       0x01000000
57 #elif defined CONFIG_SA1100_CERF_FLASH_8MB
58 #  define CERF_FLASH_SIZE       0x00800000
59 #else
60 #  error "Undefined flash size for CERF"
61 #endif
62
63 static struct mtd_partition cerf_partitions[] = {
64         {
65                 .name           = "Bootloader",
66                 .size           = 0x00020000,
67                 .offset         = 0x00000000,
68         }, {
69                 .name           = "Params",
70                 .size           = 0x00040000,
71                 .offset         = 0x00020000,
72         }, {
73                 .name           = "Kernel",
74                 .size           = 0x00100000,
75                 .offset         = 0x00060000,
76         }, {
77                 .name           = "Filesystem",
78                 .size           = CERF_FLASH_SIZE-0x00160000,
79                 .offset         = 0x00160000,
80         }
81 };
82
83 static struct flash_platform_data cerf_flash_data = {
84         .map_name       = "cfi_probe",
85         .parts          = cerf_partitions,
86         .nr_parts       = ARRAY_SIZE(cerf_partitions),
87 };
88
89 static struct resource cerf_flash_resource = {
90         .start          = SA1100_CS0_PHYS,
91         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
92         .flags          = IORESOURCE_MEM,
93 };
94
95 static void __init cerf_init_irq(void)
96 {
97         sa1100_init_irq();
98         set_irq_type(CERF_ETH_IRQ, IRQT_RISING);
99 }
100
101 static struct map_desc cerf_io_desc[] __initdata = {
102   /* virtual     physical    length      type */
103   { 0xf0000000, 0x08000000, 0x00100000, MT_DEVICE }  /* Crystal Ethernet Chip */
104 };
105
106 static void __init cerf_map_io(void)
107 {
108         sa1100_map_io();
109         iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
110
111         sa1100_register_uart(0, 3);
112         sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
113         sa1100_register_uart(2, 1);
114
115         /* set some GPDR bits here while it's safe */
116         GPDR |= CERF_GPIO_CF_RESET;
117 }
118
119 static void __init cerf_init(void)
120 {
121         platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
122         sa11x0_set_flash_data(&cerf_flash_data, &cerf_flash_resource, 1);
123 }
124
125 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
126         MAINTAINER("support@intrinsyc.com")
127         BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
128         MAPIO(cerf_map_io)
129         INITIRQ(cerf_init_irq)
130         .timer          = &sa1100_timer,
131         .init_machine   = cerf_init,
132 MACHINE_END