Merge with git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[linux-2.6] / arch / arm / mach-ixp4xx / nslu2-setup.c
1 /*
2  * arch/arm/mach-ixp4xx/nslu2-setup.c
3  *
4  * NSLU2 board-setup
5  *
6  * based ixdp425-setup.c:
7  *      Copyright (C) 2003-2004 MontaVista Software, Inc.
8  *
9  * Author: Mark Rakes <mrakes at mac.com>
10  * Maintainers: http://www.nslu2-linux.org/
11  *
12  * Fixed missing init_time in MACHINE_START kas11 10/22/04
13  * Changed to conform to new style __init ixdp425 kas11 10/22/04
14  */
15
16 #include <linux/kernel.h>
17 #include <linux/serial.h>
18 #include <linux/serial_8250.h>
19
20 #include <asm/mach-types.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach/flash.h>
23
24 static struct flash_platform_data nslu2_flash_data = {
25         .map_name               = "cfi_probe",
26         .width                  = 2,
27 };
28
29 static struct resource nslu2_flash_resource = {
30         .flags                  = IORESOURCE_MEM,
31 };
32
33 static struct platform_device nslu2_flash = {
34         .name                   = "IXP4XX-Flash",
35         .id                     = 0,
36         .dev.platform_data      = &nslu2_flash_data,
37         .num_resources          = 1,
38         .resource               = &nslu2_flash_resource,
39 };
40
41 static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
42         .sda_pin                = NSLU2_SDA_PIN,
43         .scl_pin                = NSLU2_SCL_PIN,
44 };
45
46 static struct platform_device nslu2_i2c_controller = {
47         .name                   = "IXP4XX-I2C",
48         .id                     = 0,
49         .dev.platform_data      = &nslu2_i2c_gpio_pins,
50         .num_resources          = 0,
51 };
52
53 static struct platform_device nslu2_beeper = {
54         .name                   = "ixp4xx-beeper",
55         .id                     = NSLU2_GPIO_BUZZ,
56         .num_resources          = 0,
57 };
58
59 static struct resource nslu2_uart_resources[] = {
60         {
61                 .start          = IXP4XX_UART1_BASE_PHYS,
62                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
63                 .flags          = IORESOURCE_MEM,
64         },
65         {
66                 .start          = IXP4XX_UART2_BASE_PHYS,
67                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
68                 .flags          = IORESOURCE_MEM,
69         }
70 };
71
72 static struct plat_serial8250_port nslu2_uart_data[] = {
73         {
74                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
75                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
76                 .irq            = IRQ_IXP4XX_UART1,
77                 .flags          = UPF_BOOT_AUTOCONF,
78                 .iotype         = UPIO_MEM,
79                 .regshift       = 2,
80                 .uartclk        = IXP4XX_UART_XTAL,
81         },
82         {
83                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
84                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
85                 .irq            = IRQ_IXP4XX_UART2,
86                 .flags          = UPF_BOOT_AUTOCONF,
87                 .iotype         = UPIO_MEM,
88                 .regshift       = 2,
89                 .uartclk        = IXP4XX_UART_XTAL,
90         },
91         { }
92 };
93
94 static struct platform_device nslu2_uart = {
95         .name                   = "serial8250",
96         .id                     = PLAT8250_DEV_PLATFORM,
97         .dev.platform_data      = nslu2_uart_data,
98         .num_resources          = 2,
99         .resource               = nslu2_uart_resources,
100 };
101
102 static struct platform_device *nslu2_devices[] __initdata = {
103         &nslu2_i2c_controller,
104         &nslu2_flash,
105         &nslu2_uart,
106         &nslu2_beeper,
107 };
108
109 static void nslu2_power_off(void)
110 {
111         /* This causes the box to drop the power and go dead. */
112
113         /* enable the pwr cntl gpio */
114         gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT);
115
116         /* do the deed */
117         gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
118 }
119
120 static void __init nslu2_init(void)
121 {
122         ixp4xx_sys_init();
123
124         nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
125         nslu2_flash_resource.end =
126                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
127
128         pm_power_off = nslu2_power_off;
129
130         platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
131 }
132
133 MACHINE_START(NSLU2, "Linksys NSLU2")
134         /* Maintainer: www.nslu2-linux.org */
135         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
136         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
137         .boot_params    = 0x00000100,
138         .map_io         = ixp4xx_map_io,
139         .init_irq       = ixp4xx_init_irq,
140         .timer          = &ixp4xx_timer,
141         .init_machine   = nslu2_init,
142 MACHINE_END