1/*
2 * arch/arm/mach-ixp4xx/nas100d-setup.c
3 *
4 * NAS 100d board-setup
5 *
6 * based ixdp425-setup.c:
7 *      Copyright (C) 2003-2004 MontaVista Software, Inc.
8 *
9 * Author: Alessandro Zummo <a.zummo@towertech.it>
10 * Author: Rod Whitby <rod@whitby.id.au>
11 * Maintainers: http://www.nslu2-linux.org/
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/serial.h>
17#include <linux/serial_8250.h>
18#include <linux/leds.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 nas100d_flash_data = {
25	.map_name		= "cfi_probe",
26	.width			= 2,
27};
28
29static struct resource nas100d_flash_resource = {
30	.flags			= IORESOURCE_MEM,
31};
32
33static struct platform_device nas100d_flash = {
34	.name			= "IXP4XX-Flash",
35	.id			= 0,
36	.dev.platform_data	= &nas100d_flash_data,
37	.num_resources		= 1,
38	.resource		= &nas100d_flash_resource,
39};
40
41#ifdef CONFIG_LEDS_IXP4XX
42static struct resource nas100d_led_resources[] = {
43	{
44		.name		= "wlan",   /* green led */
45		.start		= 0,
46		.end		= 0,
47		.flags		= IXP4XX_GPIO_LOW,
48	},
49	{
50		.name		= "ready",  /* blue power led (off is flashing!) */
51		.start		= 15,
52		.end		= 15,
53		.flags		= IXP4XX_GPIO_LOW,
54	},
55	{
56		.name		= "disk",   /* yellow led */
57		.start		= 3,
58		.end		= 3,
59		.flags		= IXP4XX_GPIO_LOW,
60	},
61};
62
63static struct platform_device nas100d_leds = {
64	.name			= "IXP4XX-GPIO-LED",
65	.id			= -1,
66	.num_resources		= ARRAY_SIZE(nas100d_led_resources),
67	.resource		= nas100d_led_resources,
68};
69#endif
70
71static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
72	.sda_pin		= NAS100D_SDA_PIN,
73	.scl_pin		= NAS100D_SCL_PIN,
74};
75
76static struct platform_device nas100d_i2c_controller = {
77	.name			= "IXP4XX-I2C",
78	.id			= 0,
79	.dev.platform_data	= &nas100d_i2c_gpio_pins,
80	.num_resources		= 0,
81};
82
83static struct resource nas100d_uart_resources[] = {
84	{
85		.start		= IXP4XX_UART1_BASE_PHYS,
86		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
87		.flags		= IORESOURCE_MEM,
88	},
89	{
90		.start		= IXP4XX_UART2_BASE_PHYS,
91		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
92		.flags		= IORESOURCE_MEM,
93	}
94};
95
96static struct plat_serial8250_port nas100d_uart_data[] = {
97	{
98		.mapbase	= IXP4XX_UART1_BASE_PHYS,
99		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
100		.irq		= IRQ_IXP4XX_UART1,
101		.flags		= UPF_BOOT_AUTOCONF,
102		.iotype		= UPIO_MEM,
103		.regshift	= 2,
104		.uartclk	= IXP4XX_UART_XTAL,
105	},
106	{
107		.mapbase	= IXP4XX_UART2_BASE_PHYS,
108		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
109		.irq		= IRQ_IXP4XX_UART2,
110		.flags		= UPF_BOOT_AUTOCONF,
111		.iotype		= UPIO_MEM,
112		.regshift	= 2,
113		.uartclk	= IXP4XX_UART_XTAL,
114	},
115	{ }
116};
117
118static struct platform_device nas100d_uart = {
119	.name			= "serial8250",
120	.id			= PLAT8250_DEV_PLATFORM,
121	.dev.platform_data	= nas100d_uart_data,
122	.num_resources		= 2,
123	.resource		= nas100d_uart_resources,
124};
125
126static struct platform_device *nas100d_devices[] __initdata = {
127	&nas100d_i2c_controller,
128	&nas100d_flash,
129#ifdef CONFIG_LEDS_IXP4XX
130	&nas100d_leds,
131#endif
132};
133
134static void nas100d_power_off(void)
135{
136	/* This causes the box to drop the power and go dead. */
137
138	/* enable the pwr cntl gpio */
139	gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
140
141	/* do the deed */
142	gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
143}
144
145static void __init nas100d_init(void)
146{
147	ixp4xx_sys_init();
148
149	/* gpio 14 and 15 are _not_ clocks */
150	*IXP4XX_GPIO_GPCLKR = 0;
151
152	nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
153	nas100d_flash_resource.end =
154		IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
155
156	pm_power_off = nas100d_power_off;
157
158	/*
159	 * This is only useful on a modified machine, but it is valuable
160	 * to have it first in order to see debug messages, and so that
161	 * it does *not* get removed if platform_add_devices fails!
162	 */
163	(void)platform_device_register(&nas100d_uart);
164
165	platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
166}
167
168MACHINE_START(NAS100D, "Iomega NAS 100d")
169	/* Maintainer: www.nslu2-linux.org */
170	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
171	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
172	.boot_params	= 0x00000100,
173	.map_io		= ixp4xx_map_io,
174	.init_irq	= ixp4xx_init_irq,
175	.timer          = &ixp4xx_timer,
176	.init_machine	= nas100d_init,
177MACHINE_END
178