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17#include <linux/gpio.h>
18#include <linux/if_ether.h>
19#include <linux/irq.h>
20#include <linux/serial.h>
21#include <linux/serial_8250.h>
22#include <linux/leds.h>
23#include <linux/reboot.h>
24#include <linux/i2c.h>
25#include <linux/i2c-gpio.h>
26#include <linux/io.h>
27#include <asm/mach-types.h>
28#include <asm/mach/arch.h>
29#include <asm/mach/flash.h>
30
31#define FSG_SDA_PIN 12
32#define FSG_SCL_PIN 13
33
34#define FSG_SB_GPIO 4
35#define FSG_RB_GPIO 9
36#define FSG_UB_GPIO 10
37
38static struct flash_platform_data fsg_flash_data = {
39 .map_name = "cfi_probe",
40 .width = 2,
41};
42
43static struct resource fsg_flash_resource = {
44 .flags = IORESOURCE_MEM,
45};
46
47static struct platform_device fsg_flash = {
48 .name = "IXP4XX-Flash",
49 .id = 0,
50 .dev = {
51 .platform_data = &fsg_flash_data,
52 },
53 .num_resources = 1,
54 .resource = &fsg_flash_resource,
55};
56
57static struct i2c_gpio_platform_data fsg_i2c_gpio_data = {
58 .sda_pin = FSG_SDA_PIN,
59 .scl_pin = FSG_SCL_PIN,
60};
61
62static struct platform_device fsg_i2c_gpio = {
63 .name = "i2c-gpio",
64 .id = 0,
65 .dev = {
66 .platform_data = &fsg_i2c_gpio_data,
67 },
68};
69
70static struct i2c_board_info __initdata fsg_i2c_board_info [] = {
71 {
72 I2C_BOARD_INFO("isl1208", 0x6f),
73 },
74};
75
76static struct resource fsg_uart_resources[] = {
77 {
78 .start = IXP4XX_UART1_BASE_PHYS,
79 .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
80 .flags = IORESOURCE_MEM,
81 },
82 {
83 .start = IXP4XX_UART2_BASE_PHYS,
84 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
85 .flags = IORESOURCE_MEM,
86 }
87};
88
89static struct plat_serial8250_port fsg_uart_data[] = {
90 {
91 .mapbase = IXP4XX_UART1_BASE_PHYS,
92 .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
93 .irq = IRQ_IXP4XX_UART1,
94 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
95 .iotype = UPIO_MEM,
96 .regshift = 2,
97 .uartclk = IXP4XX_UART_XTAL,
98 },
99 {
100 .mapbase = IXP4XX_UART2_BASE_PHYS,
101 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
102 .irq = IRQ_IXP4XX_UART2,
103 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
104 .iotype = UPIO_MEM,
105 .regshift = 2,
106 .uartclk = IXP4XX_UART_XTAL,
107 },
108 { }
109};
110
111static struct platform_device fsg_uart = {
112 .name = "serial8250",
113 .id = PLAT8250_DEV_PLATFORM,
114 .dev = {
115 .platform_data = fsg_uart_data,
116 },
117 .num_resources = ARRAY_SIZE(fsg_uart_resources),
118 .resource = fsg_uart_resources,
119};
120
121static struct platform_device fsg_leds = {
122 .name = "fsg-led",
123 .id = -1,
124};
125
126
127static struct eth_plat_info fsg_plat_eth[] = {
128 {
129 .phy = 5,
130 .rxq = 3,
131 .txreadyq = 20,
132 }, {
133 .phy = 4,
134 .rxq = 4,
135 .txreadyq = 21,
136 }
137};
138
139static struct platform_device fsg_eth[] = {
140 {
141 .name = "ixp4xx_eth",
142 .id = IXP4XX_ETH_NPEB,
143 .dev = {
144 .platform_data = fsg_plat_eth,
145 },
146 }, {
147 .name = "ixp4xx_eth",
148 .id = IXP4XX_ETH_NPEC,
149 .dev = {
150 .platform_data = fsg_plat_eth + 1,
151 },
152 }
153};
154
155static struct platform_device *fsg_devices[] __initdata = {
156 &fsg_i2c_gpio,
157 &fsg_flash,
158 &fsg_leds,
159 &fsg_eth[0],
160 &fsg_eth[1],
161};
162
163static irqreturn_t fsg_power_handler(int irq, void *dev_id)
164{
165
166
167
168 ctrl_alt_del();
169
170 return IRQ_HANDLED;
171}
172
173static irqreturn_t fsg_reset_handler(int irq, void *dev_id)
174{
175
176 printk(KERN_INFO "Restarting system.\n");
177 machine_restart(NULL);
178
179
180 return IRQ_HANDLED;
181}
182
183static void __init fsg_init(void)
184{
185 uint8_t __iomem *f;
186
187 ixp4xx_sys_init();
188
189 fsg_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
190 fsg_flash_resource.end =
191 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
192
193 *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
194 *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
195
196
197 *IXP4XX_EXP_CS2 = 0xbfff0002;
198
199 i2c_register_board_info(0, fsg_i2c_board_info,
200 ARRAY_SIZE(fsg_i2c_board_info));
201
202
203
204
205
206 (void)platform_device_register(&fsg_uart);
207
208 platform_add_devices(fsg_devices, ARRAY_SIZE(fsg_devices));
209
210 if (request_irq(gpio_to_irq(FSG_RB_GPIO), &fsg_reset_handler,
211 IRQF_DISABLED | IRQF_TRIGGER_LOW,
212 "FSG reset button", NULL) < 0) {
213
214 printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
215 gpio_to_irq(FSG_RB_GPIO));
216 }
217
218 if (request_irq(gpio_to_irq(FSG_SB_GPIO), &fsg_power_handler,
219 IRQF_DISABLED | IRQF_TRIGGER_LOW,
220 "FSG power button", NULL) < 0) {
221
222 printk(KERN_DEBUG "Power Button IRQ %d not available\n",
223 gpio_to_irq(FSG_SB_GPIO));
224 }
225
226
227
228
229
230
231 f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x400000);
232 if (f) {
233#ifdef __ARMEB__
234 int i;
235 for (i = 0; i < 6; i++) {
236 fsg_plat_eth[0].hwaddr[i] = readb(f + 0x3C0422 + i);
237 fsg_plat_eth[1].hwaddr[i] = readb(f + 0x3C043B + i);
238 }
239#else
240
241
242
243
244
245
246
247 fsg_plat_eth[0].hwaddr[0] = readb(f + 0x3C0421);
248 fsg_plat_eth[0].hwaddr[1] = readb(f + 0x3C0420);
249 fsg_plat_eth[0].hwaddr[2] = readb(f + 0x3C0427);
250 fsg_plat_eth[0].hwaddr[3] = readb(f + 0x3C0426);
251 fsg_plat_eth[0].hwaddr[4] = readb(f + 0x3C0425);
252 fsg_plat_eth[0].hwaddr[5] = readb(f + 0x3C0424);
253
254 fsg_plat_eth[1].hwaddr[0] = readb(f + 0x3C0439);
255 fsg_plat_eth[1].hwaddr[1] = readb(f + 0x3C043F);
256 fsg_plat_eth[1].hwaddr[2] = readb(f + 0x3C043E);
257 fsg_plat_eth[1].hwaddr[3] = readb(f + 0x3C043D);
258 fsg_plat_eth[1].hwaddr[4] = readb(f + 0x3C043C);
259 fsg_plat_eth[1].hwaddr[5] = readb(f + 0x3C0443);
260#endif
261 iounmap(f);
262 }
263 printk(KERN_INFO "FSG: Using MAC address %pM for port 0\n",
264 fsg_plat_eth[0].hwaddr);
265 printk(KERN_INFO "FSG: Using MAC address %pM for port 1\n",
266 fsg_plat_eth[1].hwaddr);
267
268}
269
270MACHINE_START(FSG, "Freecom FSG-3")
271
272 .map_io = ixp4xx_map_io,
273 .init_early = ixp4xx_init_early,
274 .init_irq = ixp4xx_init_irq,
275 .timer = &ixp4xx_timer,
276 .atag_offset = 0x100,
277 .init_machine = fsg_init,
278#if defined(CONFIG_PCI)
279 .dma_zone_size = SZ_64M,
280#endif
281 .restart = ixp4xx_restart,
282MACHINE_END
283
284
