Merge master.kernel.org:/home/rmk/linux-2.6-arm
[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         .start                  = NSLU2_FLASH_BASE,
31         .end                    = NSLU2_FLASH_BASE + NSLU2_FLASH_SIZE,
32         .flags                  = IORESOURCE_MEM,
33 };
34
35 static struct platform_device nslu2_flash = {
36         .name                   = "IXP4XX-Flash",
37         .id                     = 0,
38         .dev.platform_data      = &nslu2_flash_data,
39         .num_resources          = 1,
40         .resource               = &nslu2_flash_resource,
41 };
42
43 static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
44         .sda_pin                = NSLU2_SDA_PIN,
45         .scl_pin                = NSLU2_SCL_PIN,
46 };
47
48 static struct platform_device nslu2_i2c_controller = {
49         .name                   = "IXP4XX-I2C",
50         .id                     = 0,
51         .dev.platform_data      = &nslu2_i2c_gpio_pins,
52         .num_resources          = 0,
53 };
54
55 static struct resource nslu2_uart_resources[] = {
56         {
57                 .start          = IXP4XX_UART1_BASE_PHYS,
58                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
59                 .flags          = IORESOURCE_MEM,
60         },
61         {
62                 .start          = IXP4XX_UART2_BASE_PHYS,
63                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
64                 .flags          = IORESOURCE_MEM,
65         }
66 };
67
68 static struct plat_serial8250_port nslu2_uart_data[] = {
69         {
70                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
71                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
72                 .irq            = IRQ_IXP4XX_UART1,
73                 .flags          = UPF_BOOT_AUTOCONF,
74                 .iotype         = UPIO_MEM,
75                 .regshift       = 2,
76                 .uartclk        = IXP4XX_UART_XTAL,
77         },
78         {
79                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
80                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
81                 .irq            = IRQ_IXP4XX_UART2,
82                 .flags          = UPF_BOOT_AUTOCONF,
83                 .iotype         = UPIO_MEM,
84                 .regshift       = 2,
85                 .uartclk        = IXP4XX_UART_XTAL,
86         },
87         { }
88 };
89
90 static struct platform_device nslu2_uart = {
91         .name                   = "serial8250",
92         .id                     = PLAT8250_DEV_PLATFORM,
93         .dev.platform_data      = nslu2_uart_data,
94         .num_resources          = 2,
95         .resource               = nslu2_uart_resources,
96 };
97
98 static struct platform_device *nslu2_devices[] __initdata = {
99         &nslu2_i2c_controller,
100         &nslu2_flash,
101         &nslu2_uart,
102 };
103
104 static void nslu2_power_off(void)
105 {
106         /* This causes the box to drop the power and go dead. */
107
108         /* enable the pwr cntl gpio */
109         gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT);
110
111         /* do the deed */
112         gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
113 }
114
115 static void __init nslu2_init(void)
116 {
117         ixp4xx_sys_init();
118
119         pm_power_off = nslu2_power_off;
120
121         platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
122 }
123
124 MACHINE_START(NSLU2, "Linksys NSLU2")
125         /* Maintainer: www.nslu2-linux.org */
126         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
127         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
128         .boot_params    = 0x00000100,
129         .map_io         = ixp4xx_map_io,
130         .init_irq       = ixp4xx_init_irq,
131         .timer          = &ixp4xx_timer,
132         .init_machine   = nslu2_init,
133 MACHINE_END