Commit | Line | Data |
---|---|---|
cb8f55b9 | 1 | /* |
8e026910 | 2 | * GPR board platform device registration (Au1550) |
cb8f55b9 WG |
3 | * |
4 | * Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
8e026910 | 21 | #include <linux/delay.h> |
cb8f55b9 | 22 | #include <linux/init.h> |
8e026910 ML |
23 | #include <linux/interrupt.h> |
24 | #include <linux/kernel.h> | |
cb8f55b9 | 25 | #include <linux/platform_device.h> |
8e026910 | 26 | #include <linux/pm.h> |
cb8f55b9 WG |
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> | |
8e026910 | 33 | #include <asm/bootinfo.h> |
bdc92d74 | 34 | #include <asm/idle.h> |
8e026910 | 35 | #include <asm/reboot.h> |
cb8f55b9 | 36 | #include <asm/mach-au1x00/au1000.h> |
8e026910 ML |
37 | #include <prom.h> |
38 | ||
39 | const char *get_system_type(void) | |
40 | { | |
41 | return "GPR"; | |
42 | } | |
43 | ||
44 | void __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"); | |
d334c2b9 | 56 | if (!memsize_str || kstrtoul(memsize_str, 0, &memsize)) |
8e026910 | 57 | memsize = 0x04000000; |
8e026910 ML |
58 | add_memory_region(0, memsize, BOOT_MEM_RAM); |
59 | } | |
60 | ||
61 | void prom_putchar(unsigned char c) | |
62 | { | |
63 | alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); | |
64 | } | |
65 | ||
66 | static void gpr_reset(char *c) | |
67 | { | |
68 | /* switch System-LED to orange (red# and green# on) */ | |
69 | alchemy_gpio_direction_output(4, 0); | |
70 | alchemy_gpio_direction_output(5, 0); | |
71 | ||
72 | /* trigger watchdog to reset board in 200ms */ | |
73 | printk(KERN_EMERG "Triggering watchdog soft reset...\n"); | |
74 | raw_local_irq_disable(); | |
75 | alchemy_gpio_direction_output(1, 0); | |
76 | udelay(1); | |
77 | alchemy_gpio_set_value(1, 1); | |
78 | while (1) | |
79 | cpu_wait(); | |
80 | } | |
81 | ||
82 | static void gpr_power_off(void) | |
83 | { | |
84 | while (1) | |
85 | cpu_wait(); | |
86 | } | |
87 | ||
88 | void __init board_setup(void) | |
89 | { | |
90 | printk(KERN_INFO "Trapeze ITS GPR board\n"); | |
91 | ||
92 | pm_power_off = gpr_power_off; | |
93 | _machine_halt = gpr_power_off; | |
94 | _machine_restart = gpr_reset; | |
95 | ||
96 | /* Enable UART1/3 */ | |
97 | alchemy_uart_enable(AU1000_UART3_PHYS_ADDR); | |
98 | alchemy_uart_enable(AU1000_UART1_PHYS_ADDR); | |
99 | ||
100 | /* Take away Reset of UMTS-card */ | |
101 | alchemy_gpio_direction_output(215, 1); | |
102 | } | |
cb8f55b9 WG |
103 | |
104 | /* | |
105 | * Watchdog | |
106 | */ | |
107 | static struct resource gpr_wdt_resource[] = { | |
108 | [0] = { | |
109 | .start = 1, | |
110 | .end = 1, | |
111 | .name = "gpr-adm6320-wdt", | |
112 | .flags = IORESOURCE_IRQ, | |
113 | } | |
114 | }; | |
115 | ||
116 | static struct platform_device gpr_wdt_device = { | |
117 | .name = "adm6320-wdt", | |
118 | .id = 0, | |
119 | .num_resources = ARRAY_SIZE(gpr_wdt_resource), | |
120 | .resource = gpr_wdt_resource, | |
121 | }; | |
122 | ||
123 | /* | |
124 | * FLASH | |
125 | * | |
126 | * 0x00000000-0x00200000 : "kernel" | |
127 | * 0x00200000-0x00a00000 : "rootfs" | |
128 | * 0x01d00000-0x01f00000 : "config" | |
129 | * 0x01c00000-0x01d00000 : "yamon" | |
130 | * 0x01d00000-0x01d40000 : "yamon env vars" | |
131 | * 0x00000000-0x00a00000 : "kernel+rootfs" | |
132 | */ | |
133 | static struct mtd_partition gpr_mtd_partitions[] = { | |
134 | { | |
135 | .name = "kernel", | |
136 | .size = 0x00200000, | |
70342287 | 137 | .offset = 0, |
cb8f55b9 WG |
138 | }, |
139 | { | |
140 | .name = "rootfs", | |
141 | .size = 0x00800000, | |
70342287 | 142 | .offset = MTDPART_OFS_APPEND, |
cb8f55b9 WG |
143 | .mask_flags = MTD_WRITEABLE, |
144 | }, | |
145 | { | |
146 | .name = "config", | |
147 | .size = 0x00200000, | |
70342287 | 148 | .offset = 0x01d00000, |
cb8f55b9 WG |
149 | }, |
150 | { | |
151 | .name = "yamon", | |
152 | .size = 0x00100000, | |
70342287 | 153 | .offset = 0x01c00000, |
cb8f55b9 WG |
154 | }, |
155 | { | |
156 | .name = "yamon env vars", | |
157 | .size = 0x00040000, | |
70342287 | 158 | .offset = MTDPART_OFS_APPEND, |
cb8f55b9 WG |
159 | }, |
160 | { | |
161 | .name = "kernel+rootfs", | |
162 | .size = 0x00a00000, | |
70342287 | 163 | .offset = 0, |
cb8f55b9 WG |
164 | }, |
165 | }; | |
166 | ||
167 | static struct physmap_flash_data gpr_flash_data = { | |
168 | .width = 4, | |
169 | .nr_parts = ARRAY_SIZE(gpr_mtd_partitions), | |
170 | .parts = gpr_mtd_partitions, | |
171 | }; | |
172 | ||
173 | static struct resource gpr_mtd_resource = { | |
174 | .start = 0x1e000000, | |
175 | .end = 0x1fffffff, | |
176 | .flags = IORESOURCE_MEM, | |
177 | }; | |
178 | ||
179 | static struct platform_device gpr_mtd_device = { | |
180 | .name = "physmap-flash", | |
181 | .dev = { | |
182 | .platform_data = &gpr_flash_data, | |
183 | }, | |
184 | .num_resources = 1, | |
185 | .resource = &gpr_mtd_resource, | |
186 | }; | |
187 | ||
188 | /* | |
189 | * LEDs | |
190 | */ | |
191 | static struct gpio_led gpr_gpio_leds[] = { | |
192 | { /* green */ | |
193 | .name = "gpr:green", | |
194 | .gpio = 4, | |
195 | .active_low = 1, | |
196 | }, | |
197 | { /* red */ | |
198 | .name = "gpr:red", | |
199 | .gpio = 5, | |
200 | .active_low = 1, | |
201 | } | |
202 | }; | |
203 | ||
204 | static struct gpio_led_platform_data gpr_led_data = { | |
205 | .num_leds = ARRAY_SIZE(gpr_gpio_leds), | |
206 | .leds = gpr_gpio_leds, | |
207 | }; | |
208 | ||
209 | static struct platform_device gpr_led_devices = { | |
210 | .name = "leds-gpio", | |
211 | .id = -1, | |
212 | .dev = { | |
213 | .platform_data = &gpr_led_data, | |
214 | } | |
215 | }; | |
216 | ||
217 | /* | |
218 | * I2C | |
219 | */ | |
220 | static struct i2c_gpio_platform_data gpr_i2c_data = { | |
221 | .sda_pin = 209, | |
222 | .sda_is_open_drain = 1, | |
223 | .scl_pin = 210, | |
224 | .scl_is_open_drain = 1, | |
225 | .udelay = 2, /* ~100 kHz */ | |
226 | .timeout = HZ, | |
8e026910 | 227 | }; |
cb8f55b9 WG |
228 | |
229 | static struct platform_device gpr_i2c_device = { | |
230 | .name = "i2c-gpio", | |
231 | .id = -1, | |
232 | .dev.platform_data = &gpr_i2c_data, | |
233 | }; | |
234 | ||
235 | static struct i2c_board_info gpr_i2c_info[] __initdata = { | |
236 | { | |
237 | I2C_BOARD_INFO("lm83", 0x18), | |
238 | .type = "lm83" | |
239 | } | |
240 | }; | |
241 | ||
7517de34 ML |
242 | |
243 | ||
244 | static 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 | ||
252 | static 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 | ||
8e026910 | 259 | return 0xff; |
7517de34 ML |
260 | } |
261 | ||
262 | static 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 | ||
273 | static 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 | ||
cb8f55b9 WG |
281 | static struct platform_device *gpr_devices[] __initdata = { |
282 | &gpr_wdt_device, | |
283 | &gpr_mtd_device, | |
284 | &gpr_i2c_device, | |
285 | &gpr_led_devices, | |
286 | }; | |
287 | ||
7517de34 ML |
288 | static int __init gpr_pci_init(void) |
289 | { | |
290 | return platform_device_register(&gpr_pci_host_dev); | |
291 | } | |
292 | /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */ | |
293 | arch_initcall(gpr_pci_init); | |
294 | ||
295 | ||
cb8f55b9 WG |
296 | static 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 | } | |
302 | device_initcall(gpr_dev_init); |