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17#include <linux/mm.h>
18#include <linux/init.h>
19#include <linux/f75375s.h>
20#include <linux/leds-pca9532.h>
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>
26#include <linux/serial_core.h>
27#include <linux/serial_8250.h>
28#include <linux/mtd/physmap.h>
29#include <linux/i2c.h>
30#include <linux/platform_device.h>
31#include <linux/reboot.h>
32#include <linux/io.h>
33#include <linux/gpio.h>
34#include <mach/hardware.h>
35#include <asm/irq.h>
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
38#include <asm/mach/pci.h>
39#include <asm/mach/time.h>
40#include <asm/mach-types.h>
41#include <asm/page.h>
42#include <asm/pgtable.h>
43#include <mach/time.h>
44#include "gpio-iop32x.h"
45
46
47
48
49static void __init n2100_timer_init(void)
50{
51
52 iop_init_time(198000000);
53}
54
55
56
57
58
59static struct map_desc n2100_io_desc[] __initdata = {
60 {
61 .virtual = N2100_UART,
62 .pfn = __phys_to_pfn(N2100_UART),
63 .length = 0x00100000,
64 .type = MT_DEVICE
65 },
66};
67
68void __init n2100_map_io(void)
69{
70 iop3xx_map_io();
71 iotable_init(n2100_io_desc, ARRAY_SIZE(n2100_io_desc));
72}
73
74
75
76
77
78static int __init
79n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
80{
81 int irq;
82
83 if (PCI_SLOT(dev->devfn) == 1) {
84
85 irq = IRQ_IOP32X_XINT0;
86 } else if (PCI_SLOT(dev->devfn) == 2) {
87
88 irq = IRQ_IOP32X_XINT3;
89 } else if (PCI_SLOT(dev->devfn) == 3) {
90
91 irq = IRQ_IOP32X_XINT2;
92 } else if (PCI_SLOT(dev->devfn) == 4 && pin == 1) {
93
94 irq = IRQ_IOP32X_XINT1;
95 } else if (PCI_SLOT(dev->devfn) == 4 && pin == 2) {
96
97 irq = IRQ_IOP32X_XINT0;
98 } else if (PCI_SLOT(dev->devfn) == 4 && pin == 3) {
99
100 irq = IRQ_IOP32X_XINT2;
101 } else if (PCI_SLOT(dev->devfn) == 5) {
102
103 irq = IRQ_IOP32X_XINT3;
104 } else {
105 printk(KERN_ERR "n2100_pci_map_irq() called for unknown "
106 "device PCI:%d:%d:%d\n", dev->bus->number,
107 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
108 irq = -1;
109 }
110
111 return irq;
112}
113
114static struct hw_pci n2100_pci __initdata = {
115 .nr_controllers = 1,
116 .ops = &iop3xx_ops,
117 .setup = iop3xx_pci_setup,
118 .preinit = iop3xx_pci_preinit,
119 .map_irq = n2100_pci_map_irq,
120};
121
122
123
124
125
126
127static void n2100_fixup_r8169(struct pci_dev *dev)
128{
129 if (dev->bus->number == 0 &&
130 (dev->devfn == PCI_DEVFN(1, 0) ||
131 dev->devfn == PCI_DEVFN(2, 0)))
132 dev->broken_parity_status = 1;
133}
134DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, PCI_ANY_ID, n2100_fixup_r8169);
135
136static int __init n2100_pci_init(void)
137{
138 if (machine_is_n2100())
139 pci_common_init(&n2100_pci);
140
141 return 0;
142}
143
144subsys_initcall(n2100_pci_init);
145
146
147
148
149
150static struct physmap_flash_data n2100_flash_data = {
151 .width = 2,
152};
153
154static struct resource n2100_flash_resource = {
155 .start = 0xf0000000,
156 .end = 0xf0ffffff,
157 .flags = IORESOURCE_MEM,
158};
159
160static struct platform_device n2100_flash_device = {
161 .name = "physmap-flash",
162 .id = 0,
163 .dev = {
164 .platform_data = &n2100_flash_data,
165 },
166 .num_resources = 1,
167 .resource = &n2100_flash_resource,
168};
169
170
171static struct plat_serial8250_port n2100_serial_port[] = {
172 {
173 .mapbase = N2100_UART,
174 .membase = (char *)N2100_UART,
175 .irq = 0,
176 .flags = UPF_SKIP_TEST | UPF_AUTO_IRQ | UPF_SHARE_IRQ,
177 .iotype = UPIO_MEM,
178 .regshift = 0,
179 .uartclk = 1843200,
180 },
181 { },
182};
183
184static struct resource n2100_uart_resource = {
185 .start = N2100_UART,
186 .end = N2100_UART + 7,
187 .flags = IORESOURCE_MEM,
188};
189
190static struct platform_device n2100_serial_device = {
191 .name = "serial8250",
192 .id = PLAT8250_DEV_PLATFORM,
193 .dev = {
194 .platform_data = n2100_serial_port,
195 },
196 .num_resources = 1,
197 .resource = &n2100_uart_resource,
198};
199
200static struct f75375s_platform_data n2100_f75375s = {
201 .pwm = { 255, 255 },
202 .pwm_enable = { 0, 0 },
203};
204
205static struct pca9532_platform_data n2100_leds = {
206 .leds = {
207 { .name = "n2100:red:satafail0",
208 .state = PCA9532_OFF,
209 .type = PCA9532_TYPE_LED,
210 },
211 { .name = "n2100:red:satafail1",
212 .state = PCA9532_OFF,
213 .type = PCA9532_TYPE_LED,
214 },
215 { .name = "n2100:blue:usb",
216 .state = PCA9532_OFF,
217 .type = PCA9532_TYPE_LED,
218 },
219 { .type = PCA9532_TYPE_NONE },
220
221 { .type = PCA9532_TYPE_NONE },
222 { .type = PCA9532_TYPE_NONE },
223 { .type = PCA9532_TYPE_NONE },
224 { .name = "n2100:red:usb",
225 .state = PCA9532_OFF,
226 .type = PCA9532_TYPE_LED,
227 },
228
229 { .type = PCA9532_TYPE_NONE },
230 { .type = PCA9532_TYPE_NONE },
231 { .type = PCA9532_TYPE_NONE },
232 { .type = PCA9532_TYPE_NONE },
233
234 { .type = PCA9532_TYPE_NONE },
235 { .name = "n2100:orange:system",
236 .state = PCA9532_OFF,
237 .type = PCA9532_TYPE_LED,
238 },
239 { .name = "n2100:red:system",
240 .state = PCA9532_OFF,
241 .type = PCA9532_TYPE_LED,
242 },
243 { .name = "N2100 beeper" ,
244 .state = PCA9532_OFF,
245 .type = PCA9532_TYPE_N2100_BEEP,
246 },
247 },
248 .psc = { 0, 0 },
249 .pwm = { 0, 0 },
250};
251
252static struct i2c_board_info __initdata n2100_i2c_devices[] = {
253 {
254 I2C_BOARD_INFO("rs5c372b", 0x32),
255 },
256 {
257 I2C_BOARD_INFO("f75375", 0x2e),
258 .platform_data = &n2100_f75375s,
259 },
260 {
261 I2C_BOARD_INFO("pca9532", 0x60),
262 .platform_data = &n2100_leds,
263 },
264};
265
266
267
268
269static void n2100_power_off(void)
270{
271 local_irq_disable();
272
273
274 *IOP3XX_IDBR0 = 0xc0;
275 *IOP3XX_ICR0 = 0xe9;
276 mdelay(1);
277
278
279 *IOP3XX_IDBR0 = 0x08;
280 *IOP3XX_ICR0 = 0xe8;
281 mdelay(1);
282
283
284 *IOP3XX_IDBR0 = 0x01;
285 *IOP3XX_ICR0 = 0xea;
286
287 while (1)
288 ;
289}
290
291static void n2100_restart(enum reboot_mode mode, const char *cmd)
292{
293 int ret;
294
295 ret = gpio_direction_output(N2100_HARDWARE_RESET, 0);
296 if (ret) {
297 pr_crit("could not drive reset GPIO low\n");
298 return;
299 }
300
301 while (1)
302 ;
303}
304
305
306static struct timer_list power_button_poll_timer;
307
308static void power_button_poll(struct timer_list *unused)
309{
310 if (gpio_get_value(N2100_POWER_BUTTON) == 0) {
311 ctrl_alt_del();
312 return;
313 }
314
315 power_button_poll_timer.expires = jiffies + (HZ / 10);
316 add_timer(&power_button_poll_timer);
317}
318
319static int __init n2100_request_gpios(void)
320{
321 int ret;
322
323 if (!machine_is_n2100())
324 return 0;
325
326 ret = gpio_request(N2100_HARDWARE_RESET, "reset");
327 if (ret)
328 pr_err("could not request reset GPIO\n");
329
330 ret = gpio_request(N2100_POWER_BUTTON, "power");
331 if (ret)
332 pr_err("could not request power GPIO\n");
333 else {
334 ret = gpio_direction_input(N2100_POWER_BUTTON);
335 if (ret)
336 pr_err("could not set power GPIO as input\n");
337 }
338
339 timer_setup(&power_button_poll_timer, power_button_poll, 0);
340 power_button_poll_timer.expires = jiffies + (HZ / 10);
341 add_timer(&power_button_poll_timer);
342 return 0;
343}
344device_initcall(n2100_request_gpios);
345
346static void __init n2100_init_machine(void)
347{
348 register_iop32x_gpio();
349 platform_device_register(&iop3xx_i2c0_device);
350 platform_device_register(&n2100_flash_device);
351 platform_device_register(&n2100_serial_device);
352 platform_device_register(&iop3xx_dma_0_channel);
353 platform_device_register(&iop3xx_dma_1_channel);
354
355 i2c_register_board_info(0, n2100_i2c_devices,
356 ARRAY_SIZE(n2100_i2c_devices));
357
358 pm_power_off = n2100_power_off;
359}
360
361MACHINE_START(N2100, "Thecus N2100")
362
363 .atag_offset = 0x100,
364 .map_io = n2100_map_io,
365 .init_irq = iop32x_init_irq,
366 .init_time = n2100_timer_init,
367 .init_machine = n2100_init_machine,
368 .restart = n2100_restart,
369MACHINE_END
370
