1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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 <asm/mach-au1x00/gpio-au1000.h>
38#include <prom.h>
39
40const char *get_system_type(void)
41{
42 return "GPR";
43}
44
45void __init prom_init(void)
46{
47 unsigned char *memsize_str;
48 unsigned long memsize;
49
50 prom_argc = fw_arg0;
51 prom_argv = (char **)fw_arg1;
52 prom_envp = (char **)fw_arg2;
53
54 prom_init_cmdline();
55
56 memsize_str = prom_getenv("memsize");
57 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
58 memsize = 0x04000000;
59 add_memory_region(0, memsize, BOOT_MEM_RAM);
60}
61
62void prom_putchar(unsigned char c)
63{
64 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
65}
66
67static void gpr_reset(char *c)
68{
69
70 alchemy_gpio_direction_output(4, 0);
71 alchemy_gpio_direction_output(5, 0);
72
73
74 printk(KERN_EMERG "Triggering watchdog soft reset...\n");
75 raw_local_irq_disable();
76 alchemy_gpio_direction_output(1, 0);
77 udelay(1);
78 alchemy_gpio_set_value(1, 1);
79 while (1)
80 cpu_wait();
81}
82
83static void gpr_power_off(void)
84{
85 while (1)
86 cpu_wait();
87}
88
89void __init board_setup(void)
90{
91 printk(KERN_INFO "Trapeze ITS GPR board\n");
92
93 pm_power_off = gpr_power_off;
94 _machine_halt = gpr_power_off;
95 _machine_restart = gpr_reset;
96
97
98 alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
99 alchemy_uart_enable(AU1000_UART1_PHYS_ADDR);
100
101
102 alchemy_gpio_direction_output(215, 1);
103}
104
105
106
107
108static struct resource gpr_wdt_resource[] = {
109 [0] = {
110 .start = 1,
111 .end = 1,
112 .name = "gpr-adm6320-wdt",
113 .flags = IORESOURCE_IRQ,
114 }
115};
116
117static struct platform_device gpr_wdt_device = {
118 .name = "adm6320-wdt",
119 .id = 0,
120 .num_resources = ARRAY_SIZE(gpr_wdt_resource),
121 .resource = gpr_wdt_resource,
122};
123
124
125
126
127
128
129
130
131
132
133
134static struct mtd_partition gpr_mtd_partitions[] = {
135 {
136 .name = "kernel",
137 .size = 0x00200000,
138 .offset = 0,
139 },
140 {
141 .name = "rootfs",
142 .size = 0x00800000,
143 .offset = MTDPART_OFS_APPEND,
144 .mask_flags = MTD_WRITEABLE,
145 },
146 {
147 .name = "config",
148 .size = 0x00200000,
149 .offset = 0x01d00000,
150 },
151 {
152 .name = "yamon",
153 .size = 0x00100000,
154 .offset = 0x01c00000,
155 },
156 {
157 .name = "yamon env vars",
158 .size = 0x00040000,
159 .offset = MTDPART_OFS_APPEND,
160 },
161 {
162 .name = "kernel+rootfs",
163 .size = 0x00a00000,
164 .offset = 0,
165 },
166};
167
168static struct physmap_flash_data gpr_flash_data = {
169 .width = 4,
170 .nr_parts = ARRAY_SIZE(gpr_mtd_partitions),
171 .parts = gpr_mtd_partitions,
172};
173
174static struct resource gpr_mtd_resource = {
175 .start = 0x1e000000,
176 .end = 0x1fffffff,
177 .flags = IORESOURCE_MEM,
178};
179
180static struct platform_device gpr_mtd_device = {
181 .name = "physmap-flash",
182 .dev = {
183 .platform_data = &gpr_flash_data,
184 },
185 .num_resources = 1,
186 .resource = &gpr_mtd_resource,
187};
188
189
190
191
192static struct gpio_led gpr_gpio_leds[] = {
193 {
194 .name = "gpr:green",
195 .gpio = 4,
196 .active_low = 1,
197 },
198 {
199 .name = "gpr:red",
200 .gpio = 5,
201 .active_low = 1,
202 }
203};
204
205static struct gpio_led_platform_data gpr_led_data = {
206 .num_leds = ARRAY_SIZE(gpr_gpio_leds),
207 .leds = gpr_gpio_leds,
208};
209
210static struct platform_device gpr_led_devices = {
211 .name = "leds-gpio",
212 .id = -1,
213 .dev = {
214 .platform_data = &gpr_led_data,
215 }
216};
217
218
219
220
221static struct i2c_gpio_platform_data gpr_i2c_data = {
222 .sda_pin = 209,
223 .sda_is_open_drain = 1,
224 .scl_pin = 210,
225 .scl_is_open_drain = 1,
226 .udelay = 2,
227 .timeout = HZ,
228};
229
230static struct platform_device gpr_i2c_device = {
231 .name = "i2c-gpio",
232 .id = -1,
233 .dev.platform_data = &gpr_i2c_data,
234};
235
236static struct i2c_board_info gpr_i2c_info[] __initdata = {
237 {
238 I2C_BOARD_INFO("lm83", 0x18),
239 }
240};
241
242
243
244static struct resource alchemy_pci_host_res[] = {
245 [0] = {
246 .start = AU1500_PCI_PHYS_ADDR,
247 .end = AU1500_PCI_PHYS_ADDR + 0xfff,
248 .flags = IORESOURCE_MEM,
249 },
250};
251
252static int gpr_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
253{
254 if ((slot == 0) && (pin == 1))
255 return AU1550_PCI_INTA;
256 else if ((slot == 0) && (pin == 2))
257 return AU1550_PCI_INTB;
258
259 return 0xff;
260}
261
262static struct alchemy_pci_platdata gpr_pci_pd = {
263 .board_map_irq = gpr_map_pci_irq,
264 .pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
265 PCI_CONFIG_CH |
266#if defined(__MIPSEB__)
267 PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
268#else
269 0,
270#endif
271};
272
273static struct platform_device gpr_pci_host_dev = {
274 .dev.platform_data = &gpr_pci_pd,
275 .name = "alchemy-pci",
276 .id = 0,
277 .num_resources = ARRAY_SIZE(alchemy_pci_host_res),
278 .resource = alchemy_pci_host_res,
279};
280
281static struct platform_device *gpr_devices[] __initdata = {
282 &gpr_wdt_device,
283 &gpr_mtd_device,
284 &gpr_i2c_device,
285 &gpr_led_devices,
286};
287
288static int __init gpr_pci_init(void)
289{
290 return platform_device_register(&gpr_pci_host_dev);
291}
292
293arch_initcall(gpr_pci_init);
294
295
296static int __init gpr_dev_init(void)
297{
298 i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
299
300 return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
301}
302device_initcall(gpr_dev_init);
303
