Commit | Line | Data |
---|---|---|
a7918f39 AZ |
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> | |
e22b04fb | 10 | * Author: Rod Whitby <rod@whitby.id.au> |
a7918f39 AZ |
11 | * Maintainers: http://www.nslu2-linux.org/ |
12 | * | |
13 | * Fixed missing init_time in MACHINE_START kas11 10/22/04 | |
14 | * Changed to conform to new style __init ixdp425 kas11 10/22/04 | |
15 | */ | |
16 | ||
b7edc84a | 17 | #include <linux/if_ether.h> |
a7918f39 AZ |
18 | #include <linux/kernel.h> |
19 | #include <linux/serial.h> | |
20 | #include <linux/serial_8250.h> | |
e22b04fb | 21 | #include <linux/leds.h> |
e28067d5 | 22 | #include <linux/i2c.h> |
5a4a2387 | 23 | #include <linux/i2c-gpio.h> |
a7918f39 AZ |
24 | |
25 | #include <asm/mach-types.h> | |
26 | #include <asm/mach/arch.h> | |
27 | #include <asm/mach/flash.h> | |
435c5da0 | 28 | #include <asm/mach/time.h> |
b7edc84a | 29 | #include <asm/io.h> |
a7918f39 AZ |
30 | |
31 | static struct flash_platform_data nslu2_flash_data = { | |
32 | .map_name = "cfi_probe", | |
33 | .width = 2, | |
34 | }; | |
35 | ||
36 | static struct resource nslu2_flash_resource = { | |
a7918f39 AZ |
37 | .flags = IORESOURCE_MEM, |
38 | }; | |
39 | ||
40 | static struct platform_device nslu2_flash = { | |
41 | .name = "IXP4XX-Flash", | |
42 | .id = 0, | |
43 | .dev.platform_data = &nslu2_flash_data, | |
44 | .num_resources = 1, | |
45 | .resource = &nslu2_flash_resource, | |
46 | }; | |
47 | ||
5a4a2387 | 48 | static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = { |
a7918f39 AZ |
49 | .sda_pin = NSLU2_SDA_PIN, |
50 | .scl_pin = NSLU2_SCL_PIN, | |
51 | }; | |
52 | ||
e28067d5 RW |
53 | static struct i2c_board_info __initdata nslu2_i2c_board_info [] = { |
54 | { | |
55 | I2C_BOARD_INFO("rtc-x1205", 0x6f), | |
56 | }, | |
57 | }; | |
58 | ||
1208ebf2 | 59 | static struct gpio_led nslu2_led_pins[] = { |
e22b04fb RW |
60 | { |
61 | .name = "ready", /* green led */ | |
1208ebf2 | 62 | .gpio = NSLU2_LED_GRN_GPIO, |
e22b04fb RW |
63 | }, |
64 | { | |
65 | .name = "status", /* red led */ | |
1208ebf2 | 66 | .gpio = NSLU2_LED_RED_GPIO, |
e22b04fb RW |
67 | }, |
68 | { | |
69 | .name = "disk-1", | |
1208ebf2 RW |
70 | .gpio = NSLU2_LED_DISK1_GPIO, |
71 | .active_low = true, | |
e22b04fb RW |
72 | }, |
73 | { | |
74 | .name = "disk-2", | |
1208ebf2 RW |
75 | .gpio = NSLU2_LED_DISK2_GPIO, |
76 | .active_low = true, | |
e22b04fb RW |
77 | }, |
78 | }; | |
79 | ||
1208ebf2 RW |
80 | static struct gpio_led_platform_data nslu2_led_data = { |
81 | .num_leds = ARRAY_SIZE(nslu2_led_pins), | |
82 | .leds = nslu2_led_pins, | |
83 | }; | |
84 | ||
e22b04fb | 85 | static struct platform_device nslu2_leds = { |
1208ebf2 | 86 | .name = "leds-gpio", |
e22b04fb | 87 | .id = -1, |
1208ebf2 | 88 | .dev.platform_data = &nslu2_led_data, |
e22b04fb | 89 | }; |
e22b04fb | 90 | |
5a4a2387 MLJ |
91 | static struct platform_device nslu2_i2c_gpio = { |
92 | .name = "i2c-gpio", | |
a7918f39 | 93 | .id = 0, |
5a4a2387 MLJ |
94 | .dev = { |
95 | .platform_data = &nslu2_i2c_gpio_data, | |
96 | }, | |
a7918f39 AZ |
97 | }; |
98 | ||
bc66d449 AZ |
99 | static struct platform_device nslu2_beeper = { |
100 | .name = "ixp4xx-beeper", | |
101 | .id = NSLU2_GPIO_BUZZ, | |
102 | .num_resources = 0, | |
103 | }; | |
104 | ||
a7918f39 AZ |
105 | static struct resource nslu2_uart_resources[] = { |
106 | { | |
107 | .start = IXP4XX_UART1_BASE_PHYS, | |
108 | .end = IXP4XX_UART1_BASE_PHYS + 0x0fff, | |
109 | .flags = IORESOURCE_MEM, | |
110 | }, | |
111 | { | |
112 | .start = IXP4XX_UART2_BASE_PHYS, | |
113 | .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, | |
114 | .flags = IORESOURCE_MEM, | |
115 | } | |
116 | }; | |
117 | ||
118 | static struct plat_serial8250_port nslu2_uart_data[] = { | |
119 | { | |
120 | .mapbase = IXP4XX_UART1_BASE_PHYS, | |
121 | .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, | |
122 | .irq = IRQ_IXP4XX_UART1, | |
123 | .flags = UPF_BOOT_AUTOCONF, | |
124 | .iotype = UPIO_MEM, | |
125 | .regshift = 2, | |
126 | .uartclk = IXP4XX_UART_XTAL, | |
127 | }, | |
128 | { | |
129 | .mapbase = IXP4XX_UART2_BASE_PHYS, | |
130 | .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, | |
131 | .irq = IRQ_IXP4XX_UART2, | |
132 | .flags = UPF_BOOT_AUTOCONF, | |
133 | .iotype = UPIO_MEM, | |
134 | .regshift = 2, | |
135 | .uartclk = IXP4XX_UART_XTAL, | |
136 | }, | |
137 | { } | |
138 | }; | |
139 | ||
140 | static struct platform_device nslu2_uart = { | |
141 | .name = "serial8250", | |
142 | .id = PLAT8250_DEV_PLATFORM, | |
143 | .dev.platform_data = nslu2_uart_data, | |
144 | .num_resources = 2, | |
145 | .resource = nslu2_uart_resources, | |
146 | }; | |
147 | ||
b7edc84a RW |
148 | /* Built-in 10/100 Ethernet MAC interfaces */ |
149 | static struct eth_plat_info nslu2_plat_eth[] = { | |
150 | { | |
151 | .phy = 1, | |
152 | .rxq = 3, | |
153 | .txreadyq = 20, | |
154 | } | |
155 | }; | |
156 | ||
157 | static struct platform_device nslu2_eth[] = { | |
158 | { | |
159 | .name = "ixp4xx_eth", | |
160 | .id = IXP4XX_ETH_NPEB, | |
161 | .dev.platform_data = nslu2_plat_eth, | |
162 | } | |
163 | }; | |
164 | ||
a7918f39 | 165 | static struct platform_device *nslu2_devices[] __initdata = { |
5a4a2387 | 166 | &nslu2_i2c_gpio, |
a7918f39 | 167 | &nslu2_flash, |
bc66d449 | 168 | &nslu2_beeper, |
e22b04fb | 169 | &nslu2_leds, |
b7edc84a | 170 | &nslu2_eth[0], |
a7918f39 AZ |
171 | }; |
172 | ||
173 | static void nslu2_power_off(void) | |
174 | { | |
175 | /* This causes the box to drop the power and go dead. */ | |
176 | ||
177 | /* enable the pwr cntl gpio */ | |
178 | gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT); | |
179 | ||
180 | /* do the deed */ | |
181 | gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH); | |
182 | } | |
183 | ||
435c5da0 | 184 | static void __init nslu2_timer_init(void) |
a7918f39 | 185 | { |
435c5da0 MLJ |
186 | /* The xtal on this machine is non-standard. */ |
187 | ixp4xx_timer_freq = NSLU2_FREQ; | |
188 | ||
189 | /* Call standard timer_init function. */ | |
190 | ixp4xx_timer_init(); | |
191 | } | |
84904d0e | 192 | |
435c5da0 MLJ |
193 | static struct sys_timer nslu2_timer = { |
194 | .init = nslu2_timer_init, | |
195 | }; | |
196 | ||
197 | static void __init nslu2_init(void) | |
198 | { | |
b7edc84a RW |
199 | DECLARE_MAC_BUF(mac_buf); |
200 | uint8_t __iomem *f; | |
201 | int i; | |
202 | ||
a7918f39 AZ |
203 | ixp4xx_sys_init(); |
204 | ||
3dfaf7a6 MM |
205 | nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); |
206 | nslu2_flash_resource.end = | |
207 | IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; | |
208 | ||
a7918f39 AZ |
209 | pm_power_off = nslu2_power_off; |
210 | ||
e28067d5 RW |
211 | i2c_register_board_info(0, nslu2_i2c_board_info, |
212 | ARRAY_SIZE(nslu2_i2c_board_info)); | |
213 | ||
cc50a0df MLJ |
214 | /* |
215 | * This is only useful on a modified machine, but it is valuable | |
e22b04fb RW |
216 | * to have it first in order to see debug messages, and so that |
217 | * it does *not* get removed if platform_add_devices fails! | |
218 | */ | |
219 | (void)platform_device_register(&nslu2_uart); | |
220 | ||
a7918f39 | 221 | platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices)); |
b7edc84a RW |
222 | |
223 | ||
224 | /* | |
225 | * Map in a portion of the flash and read the MAC address. | |
226 | * Since it is stored in BE in the flash itself, we need to | |
227 | * byteswap it if we're in LE mode. | |
228 | */ | |
229 | f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000); | |
230 | if (f) { | |
231 | for (i = 0; i < 6; i++) | |
232 | #ifdef __ARMEB__ | |
233 | nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i); | |
234 | #else | |
235 | nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3)); | |
236 | #endif | |
237 | iounmap(f); | |
238 | } | |
239 | printk(KERN_INFO "NSLU2: Using MAC address %s for port 0\n", | |
240 | print_mac(mac_buf, nslu2_plat_eth[0].hwaddr)); | |
241 | ||
a7918f39 AZ |
242 | } |
243 | ||
244 | MACHINE_START(NSLU2, "Linksys NSLU2") | |
245 | /* Maintainer: www.nslu2-linux.org */ | |
a7918f39 AZ |
246 | .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, |
247 | .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC, | |
248 | .boot_params = 0x00000100, | |
249 | .map_io = ixp4xx_map_io, | |
250 | .init_irq = ixp4xx_init_irq, | |
435c5da0 | 251 | .timer = &nslu2_timer, |
a7918f39 AZ |
252 | .init_machine = nslu2_init, |
253 | MACHINE_END |