Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[linux-2.6] / arch / arm / mach-iop32x / glantank.c
1 /*
2  * arch/arm/mach-iop32x/glantank.c
3  *
4  * Board support code for the GLAN Tank.
5  *
6  * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
7  * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU General Public License as published by the
11  * Free Software Foundation; either version 2 of the License, or (at your
12  * option) any later version.
13  */
14
15 #include <linux/mm.h>
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/pci.h>
19 #include <linux/string.h>
20 #include <linux/slab.h>
21 #include <linux/serial_core.h>
22 #include <linux/serial_8250.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/i2c.h>
25 #include <linux/platform_device.h>
26 #include <asm/hardware.h>
27 #include <asm/io.h>
28 #include <asm/irq.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/pci.h>
32 #include <asm/mach/time.h>
33 #include <asm/mach-types.h>
34 #include <asm/page.h>
35 #include <asm/arch/time.h>
36
37 /*
38  * GLAN Tank timer tick configuration.
39  */
40 static void __init glantank_timer_init(void)
41 {
42         /* 33.333 MHz crystal.  */
43         iop_init_time(200000000);
44 }
45
46 static struct sys_timer glantank_timer = {
47         .init           = glantank_timer_init,
48         .offset         = iop_gettimeoffset,
49 };
50
51
52 /*
53  * GLAN Tank I/O.
54  */
55 static struct map_desc glantank_io_desc[] __initdata = {
56         {       /* on-board devices */
57                 .virtual        = GLANTANK_UART,
58                 .pfn            = __phys_to_pfn(GLANTANK_UART),
59                 .length         = 0x00100000,
60                 .type           = MT_DEVICE
61         },
62 };
63
64 void __init glantank_map_io(void)
65 {
66         iop3xx_map_io();
67         iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
68 }
69
70
71 /*
72  * GLAN Tank PCI.
73  */
74 #define INTA    IRQ_IOP32X_XINT0
75 #define INTB    IRQ_IOP32X_XINT1
76 #define INTC    IRQ_IOP32X_XINT2
77 #define INTD    IRQ_IOP32X_XINT3
78
79 static int __init
80 glantank_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
81 {
82         static int pci_irq_table[][4] = {
83                 /*
84                  * PCI IDSEL/INTPIN->INTLINE
85                  * A       B       C       D
86                  */
87                 {INTD, INTD, INTD, INTD}, /* UART (8250) */
88                 {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
89                 {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
90                 {INTC, INTC, INTC, INTC}, /* USB (NEC) */
91         };
92
93         BUG_ON(pin < 1 || pin > 4);
94
95         return pci_irq_table[slot % 4][pin - 1];
96 }
97
98 static struct hw_pci glantank_pci __initdata = {
99         .swizzle        = pci_std_swizzle,
100         .nr_controllers = 1,
101         .setup          = iop3xx_pci_setup,
102         .preinit        = iop3xx_pci_preinit,
103         .scan           = iop3xx_pci_scan_bus,
104         .map_irq        = glantank_pci_map_irq,
105 };
106
107 static int __init glantank_pci_init(void)
108 {
109         if (machine_is_glantank())
110                 pci_common_init(&glantank_pci);
111
112         return 0;
113 }
114
115 subsys_initcall(glantank_pci_init);
116
117
118 /*
119  * GLAN Tank machine initialization.
120  */
121 static struct physmap_flash_data glantank_flash_data = {
122         .width          = 2,
123 };
124
125 static struct resource glantank_flash_resource = {
126         .start          = 0xf0000000,
127         .end            = 0xf007ffff,
128         .flags          = IORESOURCE_MEM,
129 };
130
131 static struct platform_device glantank_flash_device = {
132         .name           = "physmap-flash",
133         .id             = 0,
134         .dev            = {
135                 .platform_data  = &glantank_flash_data,
136         },
137         .num_resources  = 1,
138         .resource       = &glantank_flash_resource,
139 };
140
141 static struct plat_serial8250_port glantank_serial_port[] = {
142         {
143                 .mapbase        = GLANTANK_UART,
144                 .membase        = (char *)GLANTANK_UART,
145                 .irq            = IRQ_IOP32X_XINT3,
146                 .flags          = UPF_SKIP_TEST,
147                 .iotype         = UPIO_MEM,
148                 .regshift       = 0,
149                 .uartclk        = 1843200,
150         },
151         { },
152 };
153
154 static struct resource glantank_uart_resource = {
155         .start          = GLANTANK_UART,
156         .end            = GLANTANK_UART + 7,
157         .flags          = IORESOURCE_MEM,
158 };
159
160 static struct platform_device glantank_serial_device = {
161         .name           = "serial8250",
162         .id             = PLAT8250_DEV_PLATFORM,
163         .dev            = {
164                 .platform_data          = glantank_serial_port,
165         },
166         .num_resources  = 1,
167         .resource       = &glantank_uart_resource,
168 };
169
170 static struct i2c_board_info __initdata glantank_i2c_devices[] = {
171         {
172                 I2C_BOARD_INFO("rtc-rs5c372", 0x32),
173                 .type = "rs5c372a",
174         },
175 };
176
177 static void glantank_power_off(void)
178 {
179         __raw_writeb(0x01, 0xfe8d0004);
180
181         while (1)
182                 ;
183 }
184
185 static void __init glantank_init_machine(void)
186 {
187         platform_device_register(&iop3xx_i2c0_device);
188         platform_device_register(&iop3xx_i2c1_device);
189         platform_device_register(&glantank_flash_device);
190         platform_device_register(&glantank_serial_device);
191         platform_device_register(&iop3xx_dma_0_channel);
192         platform_device_register(&iop3xx_dma_1_channel);
193
194         i2c_register_board_info(0, glantank_i2c_devices,
195                 ARRAY_SIZE(glantank_i2c_devices));
196
197         pm_power_off = glantank_power_off;
198 }
199
200 MACHINE_START(GLANTANK, "GLAN Tank")
201         /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
202         .phys_io        = GLANTANK_UART,
203         .io_pg_offst    = ((GLANTANK_UART) >> 18) & 0xfffc,
204         .boot_params    = 0xa0000100,
205         .map_io         = glantank_map_io,
206         .init_irq       = iop32x_init_irq,
207         .timer          = &glantank_timer,
208         .init_machine   = glantank_init_machine,
209 MACHINE_END