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Merge branch 'bkl/procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...
[linux-2.6-block.git] / arch / arm / mach-iop32x / n2100.c
CommitLineData
e60d07b6
LB		 1/*
2 * arch/arm/mach-iop32x/n2100.c
3 *
4 * Board support code for the Thecus N2100 platform.
5 *
6 * Author: Rory Bolt <rorybolt@pacbell.net>
7 * Copyright (C) 2002 Rory Bolt
8 * Copyright 2003 (c) MontaVista, Software, Inc.
9 * Copyright (C) 2004 Intel Corp.
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 */
16
17#include <linux/mm.h>
18#include <linux/init.h>
9aa69338 19#include <linux/f75375s.h>
30be0486 20#include <linux/leds-pca9532.h>
e60d07b6
LB		 21#include <linux/delay.h>
22#include <linux/kernel.h>
23#include <linux/pci.h>
24#include <linux/pm.h>
25#include <linux/string.h>
e60d07b6
LB		 26#include <linux/serial_core.h>
27#include <linux/serial_8250.h>
28#include <linux/mtd/physmap.h>
c00593f6 29#include <linux/i2c.h>
e60d07b6
LB		 30#include <linux/platform_device.h>
31#include <linux/reboot.h>
fced80c7 32#include <linux/io.h>
a09e64fb 33#include <mach/hardware.h>
e60d07b6
LB		 34#include <asm/irq.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37#include <asm/mach/pci.h>
38#include <asm/mach/time.h>
39#include <asm/mach-types.h>
40#include <asm/page.h>
41#include <asm/pgtable.h>
a09e64fb 42#include <mach/time.h>
e60d07b6
LB		 43
44/*
45 * N2100 timer tick configuration.
46 */
47static void __init n2100_timer_init(void)
48{
49 /* 33.000 MHz crystal. */
3668b45d 50 iop_init_time(198000000);
e60d07b6
LB		 51}
52
53static struct sys_timer n2100_timer = {
54 .init = n2100_timer_init,
e60d07b6
LB		 55};
56
57
58/*
59 * N2100 I/O.
60 */
61static struct map_desc n2100_io_desc[] __initdata = {
62 { /* on-board devices */
63 .virtual = N2100_UART,
64 .pfn = __phys_to_pfn(N2100_UART),
65 .length = 0x00100000,
66 .type = MT_DEVICE
67 },
68};
69
70void __init n2100_map_io(void)
71{
72 iop3xx_map_io();
73 iotable_init(n2100_io_desc, ARRAY_SIZE(n2100_io_desc));
74}
75
76
77/*
78 * N2100 PCI.
79 */
d73d8011 80static int __init
e60d07b6
LB		 81n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
82{
83 int irq;
84
85 if (PCI_SLOT(dev->devfn) == 1) {
86 /* RTL8110SB #1 */
87 irq = IRQ_IOP32X_XINT0;
88 } else if (PCI_SLOT(dev->devfn) == 2) {
89 /* RTL8110SB #2 */
811c9a4b 90 irq = IRQ_IOP32X_XINT3;
e60d07b6
LB		 91 } else if (PCI_SLOT(dev->devfn) == 3) {
92 /* Sil3512 */
93 irq = IRQ_IOP32X_XINT2;
94 } else if (PCI_SLOT(dev->devfn) == 4 && pin == 1) {
95 /* VT6212 INTA */
96 irq = IRQ_IOP32X_XINT1;
97 } else if (PCI_SLOT(dev->devfn) == 4 && pin == 2) {
98 /* VT6212 INTB */
99 irq = IRQ_IOP32X_XINT0;
100 } else if (PCI_SLOT(dev->devfn) == 4 && pin == 3) {
101 /* VT6212 INTC */
102 irq = IRQ_IOP32X_XINT2;
103 } else if (PCI_SLOT(dev->devfn) == 5) {
104 /* Mini-PCI slot */
105 irq = IRQ_IOP32X_XINT3;
106 } else {
107 printk(KERN_ERR "n2100_pci_map_irq() called for unknown "
108 "device PCI:%d:%d:%d\n", dev->bus->number,
109 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
110 irq = -1;
111 }
112
113 return irq;
114}
115
116static struct hw_pci n2100_pci __initdata = {
117 .swizzle = pci_std_swizzle,
118 .nr_controllers = 1,
119 .setup = iop3xx_pci_setup,
120 .preinit = iop3xx_pci_preinit,
121 .scan = iop3xx_pci_scan_bus,
122 .map_irq = n2100_pci_map_irq,
123};
124
66822b2e
LB		 125/*
126 * Both r8169 chips on the n2100 exhibit PCI parity problems. Set
127 * the ->broken_parity_status flag for both ports so that the r8169
128 * driver knows it should ignore error interrupts.
129 */
130static void n2100_fixup_r8169(struct pci_dev *dev)
131{
132 if (dev->bus->number == 0 &&
133 (dev->devfn == PCI_DEVFN(1, 0) ||
134 dev->devfn == PCI_DEVFN(2, 0)))
135 dev->broken_parity_status = 1;
136}
137DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, PCI_ANY_ID, n2100_fixup_r8169);
138
e60d07b6
LB		 139static int __init n2100_pci_init(void)
140{
141 if (machine_is_n2100())
142 pci_common_init(&n2100_pci);
143
144 return 0;
145}
146
147subsys_initcall(n2100_pci_init);
148
149
150/*
151 * N2100 machine initialisation.
152 */
153static struct physmap_flash_data n2100_flash_data = {
154 .width = 2,
155};
156
157static struct resource n2100_flash_resource = {
158 .start = 0xf0000000,
159 .end = 0xf0ffffff,
160 .flags = IORESOURCE_MEM,
161};
162
163static struct platform_device n2100_flash_device = {
164 .name = "physmap-flash",
165 .id = 0,
166 .dev = {
167 .platform_data = &n2100_flash_data,
168 },
169 .num_resources = 1,
170 .resource = &n2100_flash_resource,
171};
172
173
174static struct plat_serial8250_port n2100_serial_port[] = {
175 {
176 .mapbase = N2100_UART,
177 .membase = (char *)N2100_UART,
178 .irq = 0,
cc761bed 179 .flags = UPF_SKIP_TEST | UPF_AUTO_IRQ | UPF_SHARE_IRQ,
e60d07b6
LB		 180 .iotype = UPIO_MEM,
181 .regshift = 0,
182 .uartclk = 1843200,
183 },
184 { },
185};
186
187static struct resource n2100_uart_resource = {
188 .start = N2100_UART,
189 .end = N2100_UART + 7,
190 .flags = IORESOURCE_MEM,
191};
192
193static struct platform_device n2100_serial_device = {
194 .name = "serial8250",
195 .id = PLAT8250_DEV_PLATFORM,
196 .dev = {
197 .platform_data = n2100_serial_port,
198 },
199 .num_resources = 1,
200 .resource = &n2100_uart_resource,
201};
202
9aa69338
RV		 203static struct f75375s_platform_data n2100_f75375s = {
204 .pwm = { 255, 255 },
205 .pwm_enable = { 0, 0 },
206};
207
30be0486
RV		 208static struct pca9532_platform_data n2100_leds = {
209 .leds = {
210 { .name = "n2100:red:satafail0",
211 .state = PCA9532_OFF,
212 .type = PCA9532_TYPE_LED,
213 },
214 { .name = "n2100:red:satafail1",
215 .state = PCA9532_OFF,
216 .type = PCA9532_TYPE_LED,
217 },
218 { .name = "n2100:blue:usb",
219 .state = PCA9532_OFF,
220 .type = PCA9532_TYPE_LED,
221 },
222 { .type = PCA9532_TYPE_NONE },
223
224 { .type = PCA9532_TYPE_NONE },
225 { .type = PCA9532_TYPE_NONE },
226 { .type = PCA9532_TYPE_NONE },
227 { .name = "n2100:red:usb",
228 .state = PCA9532_OFF,
229 .type = PCA9532_TYPE_LED,
230 },
231
232 { .type = PCA9532_TYPE_NONE }, /* power OFF gpio */
233 { .type = PCA9532_TYPE_NONE }, /* reset gpio */
234 { .type = PCA9532_TYPE_NONE },
235 { .type = PCA9532_TYPE_NONE },
236
237 { .type = PCA9532_TYPE_NONE },
238 { .name = "n2100:orange:system",
239 .state = PCA9532_OFF,
240 .type = PCA9532_TYPE_LED,
241 },
242 { .name = "n2100:red:system",
243 .state = PCA9532_OFF,
244 .type = PCA9532_TYPE_LED,
245 },
246 { .name = "N2100 beeper" ,
247 .state = PCA9532_OFF,
248 .type = PCA9532_TYPE_N2100_BEEP,
249 },
250 },
251 .psc = { 0, 0 },
252 .pwm = { 0, 0 },
253};
254
c00593f6
MM		 255static struct i2c_board_info __initdata n2100_i2c_devices[] = {
256 {
3760f736 257 I2C_BOARD_INFO("rs5c372b", 0x32),
c00593f6 258 },
9aa69338
RV		 259 {
260 I2C_BOARD_INFO("f75375", 0x2e),
9aa69338
RV		 261 .platform_data = &n2100_f75375s,
262 },
30be0486
RV		 263 {
264 I2C_BOARD_INFO("pca9532", 0x60),
265 .platform_data = &n2100_leds,
266 },
c00593f6 267};
e60d07b6
LB		 268
269/*
270 * Pull PCA9532 GPIO #8 low to power off the machine.
271 */
272static void n2100_power_off(void)
273{
274 local_irq_disable();
275
276 /* Start condition, I2C address of PCA9532, write transaction. */
277 *IOP3XX_IDBR0 = 0xc0;
278 *IOP3XX_ICR0 = 0xe9;
279 mdelay(1);
280
281 /* Write address 0x08. */
282 *IOP3XX_IDBR0 = 0x08;
283 *IOP3XX_ICR0 = 0xe8;
284 mdelay(1);
285
286 /* Write data 0x01, stop condition. */
287 *IOP3XX_IDBR0 = 0x01;
288 *IOP3XX_ICR0 = 0xea;
289
290 while (1)
291 ;
292}
293
294
295static struct timer_list power_button_poll_timer;
296
297static void power_button_poll(unsigned long dummy)
298{
299 if (gpio_line_get(N2100_POWER_BUTTON) == 0) {
300 ctrl_alt_del();
301 return;
302 }
303
304 power_button_poll_timer.expires = jiffies + (HZ / 10);
305 add_timer(&power_button_poll_timer);
306}
307
308
309static void __init n2100_init_machine(void)
310{
311 platform_device_register(&iop3xx_i2c0_device);
312 platform_device_register(&n2100_flash_device);
313 platform_device_register(&n2100_serial_device);
2492c845
DW		 314 platform_device_register(&iop3xx_dma_0_channel);
315 platform_device_register(&iop3xx_dma_1_channel);
e60d07b6 316
c00593f6
MM		 317 i2c_register_board_info(0, n2100_i2c_devices,
318 ARRAY_SIZE(n2100_i2c_devices));
319
e60d07b6
LB		 320 pm_power_off = n2100_power_off;
321
322 init_timer(&power_button_poll_timer);
323 power_button_poll_timer.function = power_button_poll;
324 power_button_poll_timer.expires = jiffies + (HZ / 10);
325 add_timer(&power_button_poll_timer);
326}
327
328MACHINE_START(N2100, "Thecus N2100")
329 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
330 .phys_io = N2100_UART,
331 .io_pg_offst = ((N2100_UART) >> 18) & 0xfffc,
332 .boot_params = 0xa0000100,
333 .map_io = n2100_map_io,
334 .init_irq = iop32x_init_irq,
335 .timer = &n2100_timer,
336 .init_machine = n2100_init_machine,
337MACHINE_END
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