Pull ibm into release branch
[linux-2.6] / arch / arm / mach-omap1 / board-ams-delta.c
1 /*
2  * linux/arch/arm/mach-omap1/board-ams-delta.c
3  *
4  * Modified from board-generic.c
5  *
6  * Board specific inits for the Amstrad E3 (codename Delta) videophone
7  *
8  * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18
19 #include <asm/hardware.h>
20 #include <asm/mach-types.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach/map.h>
23
24 #include <asm/arch/board-ams-delta.h>
25 #include <asm/arch/gpio.h>
26 #include <asm/arch/mux.h>
27 #include <asm/arch/usb.h>
28 #include <asm/arch/board.h>
29 #include <asm/arch/common.h>
30
31 static u8 ams_delta_latch1_reg;
32 static u16 ams_delta_latch2_reg;
33
34 void ams_delta_latch1_write(u8 mask, u8 value)
35 {
36         ams_delta_latch1_reg &= ~mask;
37         ams_delta_latch1_reg |= value;
38         *(volatile __u8 *) AMS_DELTA_LATCH1_VIRT = ams_delta_latch1_reg;
39 }
40
41 void ams_delta_latch2_write(u16 mask, u16 value)
42 {
43         ams_delta_latch2_reg &= ~mask;
44         ams_delta_latch2_reg |= value;
45         *(volatile __u16 *) AMS_DELTA_LATCH2_VIRT = ams_delta_latch2_reg;
46 }
47
48 static void __init ams_delta_init_irq(void)
49 {
50         omap1_init_common_hw();
51         omap_init_irq();
52         omap_gpio_init();
53 }
54
55 static struct map_desc ams_delta_io_desc[] __initdata = {
56         // AMS_DELTA_LATCH1
57         {
58                 .virtual        = AMS_DELTA_LATCH1_VIRT,
59                 .pfn            = __phys_to_pfn(AMS_DELTA_LATCH1_PHYS),
60                 .length         = 0x01000000,
61                 .type           = MT_DEVICE
62         },
63         // AMS_DELTA_LATCH2
64         {
65                 .virtual        = AMS_DELTA_LATCH2_VIRT,
66                 .pfn            = __phys_to_pfn(AMS_DELTA_LATCH2_PHYS),
67                 .length         = 0x01000000,
68                 .type           = MT_DEVICE
69         },
70         // AMS_DELTA_MODEM
71         {
72                 .virtual        = AMS_DELTA_MODEM_VIRT,
73                 .pfn            = __phys_to_pfn(AMS_DELTA_MODEM_PHYS),
74                 .length         = 0x01000000,
75                 .type           = MT_DEVICE
76         }
77 };
78
79 static struct omap_uart_config ams_delta_uart_config __initdata = {
80         .enabled_uarts = 1,
81 };
82
83 static struct omap_usb_config ams_delta_usb_config __initdata = {
84         .register_host  = 1,
85         .hmc_mode       = 16,
86         .pins[0]        = 2,
87 };
88
89 static struct omap_board_config_kernel ams_delta_config[] = {
90         { OMAP_TAG_UART,        &ams_delta_uart_config },
91         { OMAP_TAG_USB,         &ams_delta_usb_config },
92 };
93
94 static struct platform_device ams_delta_led_device = {
95         .name   = "ams-delta-led",
96         .id     = -1
97 };
98
99 static struct platform_device *ams_delta_devices[] __initdata = {
100         &ams_delta_led_device,
101 };
102
103 static void __init ams_delta_init(void)
104 {
105         iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
106
107         omap_board_config = ams_delta_config;
108         omap_board_config_size = ARRAY_SIZE(ams_delta_config);
109         omap_serial_init();
110
111         /* Clear latch2 (NAND, LCD, modem enable) */
112         ams_delta_latch2_write(~0, 0);
113
114         platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
115 }
116
117 static void __init ams_delta_map_io(void)
118 {
119         omap1_map_common_io();
120 }
121
122 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
123         /* Maintainer: Jonathan McDowell <noodles@earth.li> */
124         .phys_io        = 0xfff00000,
125         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
126         .boot_params    = 0x10000100,
127         .map_io         = ams_delta_map_io,
128         .init_irq       = ams_delta_init_irq,
129         .init_machine   = ams_delta_init,
130         .timer          = &omap_timer,
131 MACHINE_END
132
133 EXPORT_SYMBOL(ams_delta_latch1_write);
134 EXPORT_SYMBOL(ams_delta_latch2_write);