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21#include <linux/delay.h>
22#include <linux/init.h>
23#include <linux/interrupt.h>
24#include <linux/kernel.h>
25#include <linux/platform_device.h>
26#include <linux/pm.h>
27#include <linux/mtd/partitions.h>
28#include <linux/mtd/physmap.h>
29#include <linux/leds.h>
30#include <linux/gpio.h>
31#include <linux/i2c.h>
32#include <linux/i2c-gpio.h>
33#include <asm/bootinfo.h>
34#include <asm/idle.h>
35#include <asm/reboot.h>
36#include <asm/mach-au1x00/au1000.h>
37#include <prom.h>
38
39const char *get_system_type(void)
40{
41 return "GPR";
42}
43
44void __init prom_init(void)
45{
46 unsigned char *memsize_str;
47 unsigned long memsize;
48
49 prom_argc = fw_arg0;
50 prom_argv = (char **)fw_arg1;
51 prom_envp = (char **)fw_arg2;
52
53 prom_init_cmdline();
54
55 memsize_str = prom_getenv("memsize");
56 if (!memsize_str)
57 memsize = 0x04000000;
58 else
59 strict_strtoul(memsize_str, 0, &memsize);
60 add_memory_region(0, memsize, BOOT_MEM_RAM);
61}
62
63void prom_putchar(unsigned char c)
64{
65 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
66}
67
68static void gpr_reset(char *c)
69{
70
71 alchemy_gpio_direction_output(4, 0);
72 alchemy_gpio_direction_output(5, 0);
73
74
75 printk(KERN_EMERG "Triggering watchdog soft reset...\n");
76 raw_local_irq_disable();
77 alchemy_gpio_direction_output(1, 0);
78 udelay(1);
79 alchemy_gpio_set_value(1, 1);
80 while (1)
81 cpu_wait();
82}
83
84static void gpr_power_off(void)
85{
86 while (1)
87 cpu_wait();
88}
89
90void __init board_setup(void)
91{
92 printk(KERN_INFO "Trapeze ITS GPR board\n");
93
94 pm_power_off = gpr_power_off;
95 _machine_halt = gpr_power_off;
96 _machine_restart = gpr_reset;
97
98
99 alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
100 alchemy_uart_enable(AU1000_UART1_PHYS_ADDR);
101
102
103 alchemy_gpio_direction_output(215, 1);
104}
105
106
107
108
109static struct resource gpr_wdt_resource[] = {
110 [0] = {
111 .start = 1,
112 .end = 1,
113 .name = "gpr-adm6320-wdt",
114 .flags = IORESOURCE_IRQ,
115 }
116};
117
118static struct platform_device gpr_wdt_device = {
119 .name = "adm6320-wdt",
120 .id = 0,
121 .num_resources = ARRAY_SIZE(gpr_wdt_resource),
122 .resource = gpr_wdt_resource,
123};
124
125
126
127
128
129
130
131
132
133
134
135static struct mtd_partition gpr_mtd_partitions[] = {
136 {
137 .name = "kernel",
138 .size = 0x00200000,
139 .offset = 0,
140 },
141 {
142 .name = "rootfs",
143 .size = 0x00800000,
144 .offset = MTDPART_OFS_APPEND,
145 .mask_flags = MTD_WRITEABLE,
146 },
147 {
148 .name = "config",
149 .size = 0x00200000,
150 .offset = 0x01d00000,
151 },
152 {
153 .name = "yamon",
154 .size = 0x00100000,
155 .offset = 0x01c00000,
156 },
157 {
158 .name = "yamon env vars",
159 .size = 0x00040000,
160 .offset = MTDPART_OFS_APPEND,
161 },
162 {
163 .name = "kernel+rootfs",
164 .size = 0x00a00000,
165 .offset = 0,
166 },
167};
168
169static struct physmap_flash_data gpr_flash_data = {
170 .width = 4,
171 .nr_parts = ARRAY_SIZE(gpr_mtd_partitions),
172 .parts = gpr_mtd_partitions,
173};
174
175static struct resource gpr_mtd_resource = {
176 .start = 0x1e000000,
177 .end = 0x1fffffff,
178 .flags = IORESOURCE_MEM,
179};
180
181static struct platform_device gpr_mtd_device = {
182 .name = "physmap-flash",
183 .dev = {
184 .platform_data = &gpr_flash_data,
185 },
186 .num_resources = 1,
187 .resource = &gpr_mtd_resource,
188};
189
190
191
192
193static struct gpio_led gpr_gpio_leds[] = {
194 {
195 .name = "gpr:green",
196 .gpio = 4,
197 .active_low = 1,
198 },
199 {
200 .name = "gpr:red",
201 .gpio = 5,
202 .active_low = 1,
203 }
204};
205
206static struct gpio_led_platform_data gpr_led_data = {
207 .num_leds = ARRAY_SIZE(gpr_gpio_leds),
208 .leds = gpr_gpio_leds,
209};
210
211static struct platform_device gpr_led_devices = {
212 .name = "leds-gpio",
213 .id = -1,
214 .dev = {
215 .platform_data = &gpr_led_data,
216 }
217};
218
219
220
221
222static struct i2c_gpio_platform_data gpr_i2c_data = {
223 .sda_pin = 209,
224 .sda_is_open_drain = 1,
225 .scl_pin = 210,
226 .scl_is_open_drain = 1,
227 .udelay = 2,
228 .timeout = HZ,
229};
230
231static struct platform_device gpr_i2c_device = {
232 .name = "i2c-gpio",
233 .id = -1,
234 .dev.platform_data = &gpr_i2c_data,
235};
236
237static struct i2c_board_info gpr_i2c_info[] __initdata = {
238 {
239 I2C_BOARD_INFO("lm83", 0x18),
240 .type = "lm83"
241 }
242};
243
244
245
246static struct resource alchemy_pci_host_res[] = {
247 [0] = {
248 .start = AU1500_PCI_PHYS_ADDR,
249 .end = AU1500_PCI_PHYS_ADDR + 0xfff,
250 .flags = IORESOURCE_MEM,
251 },
252};
253
254static int gpr_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
255{
256 if ((slot == 0) && (pin == 1))
257 return AU1550_PCI_INTA;
258 else if ((slot == 0) && (pin == 2))
259 return AU1550_PCI_INTB;
260
261 return 0xff;
262}
263
264static struct alchemy_pci_platdata gpr_pci_pd = {
265 .board_map_irq = gpr_map_pci_irq,
266 .pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
267 PCI_CONFIG_CH |
268#if defined(__MIPSEB__)
269 PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
270#else
271 0,
272#endif
273};
274
275static struct platform_device gpr_pci_host_dev = {
276 .dev.platform_data = &gpr_pci_pd,
277 .name = "alchemy-pci",
278 .id = 0,
279 .num_resources = ARRAY_SIZE(alchemy_pci_host_res),
280 .resource = alchemy_pci_host_res,
281};
282
283static struct platform_device *gpr_devices[] __initdata = {
284 &gpr_wdt_device,
285 &gpr_mtd_device,
286 &gpr_i2c_device,
287 &gpr_led_devices,
288};
289
290static int __init gpr_pci_init(void)
291{
292 return platform_device_register(&gpr_pci_host_dev);
293}
294
295arch_initcall(gpr_pci_init);
296
297
298static int __init gpr_dev_init(void)
299{
300 i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
301
302 return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
303}
304device_initcall(gpr_dev_init);
305
