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gerrit-public.fairphone.software / kernel / msm-5.4 / a7918f39bbe59fe76f43743bdb6bb8b0bdefd94a / . / arch / arm / mach-ixp4xx / nslu2-setup.c
blob: 289e94cb65c29ad7deb3b63ea1e43aa1c327cf80 [file] [log] [blame]
Alessandro Zummoa7918f32005-11-10 14:05:04 +0000[diff] [blame^]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
24static struct flash_platform_data nslu2_flash_data = {
25 .map_name = "cfi_probe",
26 .width = 2,
27};
28
29static struct resource nslu2_flash_resource = {
30 .start = NSLU2_FLASH_BASE,
31 .end = NSLU2_FLASH_BASE + NSLU2_FLASH_SIZE,
32 .flags = IORESOURCE_MEM,
33};
34
35static 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
43static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
44 .sda_pin = NSLU2_SDA_PIN,
45 .scl_pin = NSLU2_SCL_PIN,
46};
47
48static 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
55static 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
68static 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
90static 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
98static struct platform_device *nslu2_devices[] __initdata = {
99 &nslu2_i2c_controller,
100 &nslu2_flash,
101 &nslu2_uart,
102};
103
104static 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
115static 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
124MACHINE_START(NSLU2, "Linksys NSLU2")
125 /* Maintainer: www.nslu2-linux.org */
126 .phys_ram = PHYS_OFFSET,
127 .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
128 .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
129 .boot_params = 0x00000100,
130 .map_io = ixp4xx_map_io,
131 .init_irq = ixp4xx_init_irq,
132 .timer = &ixp4xx_timer,
133 .init_machine = nslu2_init,
134MACHINE_END