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15#include <common.h>
16#include <dm.h>
17#include <ns16550.h>
18#include <netdev.h>
19#include <twl4030.h>
20#include <linux/mtd/nand.h>
21#include <asm/io.h>
22#include <asm/arch/mmc_host_def.h>
23#include <asm/arch/mux.h>
24#include <asm/arch/mem.h>
25#include <asm/arch/sys_proto.h>
26#include <asm/gpio.h>
27#include <asm/mach-types.h>
28#include "overo.h"
29
30#ifdef CONFIG_USB_EHCI
31#include <usb.h>
32#include <asm/ehci-omap.h>
33#endif
34
35DECLARE_GLOBAL_DATA_PTR;
36
37#define TWL4030_I2C_BUS 0
38#define EXPANSION_EEPROM_I2C_BUS 2
39#define EXPANSION_EEPROM_I2C_ADDRESS 0x51
40
41#define GUMSTIX_EMPTY_EEPROM 0x0
42
43#define GUMSTIX_SUMMIT 0x01000200
44#define GUMSTIX_TOBI 0x02000200
45#define GUMSTIX_TOBI_DUO 0x03000200
46#define GUMSTIX_PALO35 0x04000200
47#define GUMSTIX_PALO43 0x05000200
48#define GUMSTIX_CHESTNUT43 0x06000200
49#define GUMSTIX_PINTO 0x07000200
50#define GUMSTIX_GALLOP43 0x08000200
51#define GUMSTIX_ALTO35 0x09000200
52#define GUMSTIX_STAGECOACH 0x0A000200
53#define GUMSTIX_THUMBO 0x0B000200
54#define GUMSTIX_TURTLECORE 0x0C000200
55#define GUMSTIX_ARBOR43C 0x0D000200
56
57#define ETTUS_USRP_E 0x01000300
58
59#define GUMSTIX_NO_EEPROM 0xffffffff
60
61static struct {
62 unsigned int device_vendor;
63 unsigned char revision;
64 unsigned char content;
65 char fab_revision[8];
66 char env_var[16];
67 char env_setting[64];
68} expansion_config = {0x0};
69
70static const struct ns16550_platdata overo_serial = {
71 .base = OMAP34XX_UART3,
72 .reg_shift = 2,
73 .clock = V_NS16550_CLK
74};
75
76U_BOOT_DEVICE(overo_uart) = {
77 "ns16550_serial",
78 &overo_serial
79};
80
81
82
83
84
85
86
87int get_sdio2_config(void)
88{
89 int sdio_direct;
90
91 if (!gpio_request(130, "") && !gpio_request(139, "")) {
92
93 gpio_direction_output(130, 0);
94 gpio_direction_input(139);
95
96 sdio_direct = 1;
97 gpio_set_value(130, 0);
98 if (gpio_get_value(139) == 0) {
99 gpio_set_value(130, 1);
100 if (gpio_get_value(139) == 1)
101 sdio_direct = 0;
102 }
103
104 gpio_direction_input(130);
105 } else {
106 puts("Error: unable to acquire sdio2 clk GPIOs\n");
107 sdio_direct = -1;
108 }
109
110 return sdio_direct;
111}
112
113
114
115
116
117
118
119unsigned int get_expansion_id(void)
120{
121 if (expansion_config.device_vendor != 0x0)
122 return expansion_config.device_vendor;
123
124 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
125
126
127 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
128 i2c_set_bus_num(TWL4030_I2C_BUS);
129 return GUMSTIX_NO_EEPROM;
130 }
131
132
133 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
134 sizeof(expansion_config));
135
136 i2c_set_bus_num(TWL4030_I2C_BUS);
137
138 return expansion_config.device_vendor;
139}
140
141
142
143
144
145int misc_init_r(void)
146{
147 unsigned int expansion_id;
148
149 twl4030_power_init();
150 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
151
152 printf("Board revision: %d\n", get_board_revision());
153
154 switch (get_sdio2_config()) {
155 case 0:
156 puts("Tranceiver detected on mmc2\n");
157 MUX_OVERO_SDIO2_TRANSCEIVER();
158 break;
159 case 1:
160 puts("Direct connection on mmc2\n");
161 MUX_OVERO_SDIO2_DIRECT();
162 break;
163 default:
164 puts("Unable to detect mmc2 connection type\n");
165 }
166
167 expansion_id = get_expansion_id();
168 switch (expansion_id) {
169 case GUMSTIX_SUMMIT:
170 printf("Recognized Summit expansion board (rev %d %s)\n",
171 expansion_config.revision,
172 expansion_config.fab_revision);
173 MUX_GUMSTIX();
174 setenv("defaultdisplay", "dvi");
175 setenv("expansionname", "summit");
176 break;
177 case GUMSTIX_TOBI:
178 printf("Recognized Tobi expansion board (rev %d %s)\n",
179 expansion_config.revision,
180 expansion_config.fab_revision);
181 MUX_GUMSTIX();
182 setenv("defaultdisplay", "dvi");
183 setenv("expansionname", "tobi");
184 break;
185 case GUMSTIX_TOBI_DUO:
186 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
187 expansion_config.revision,
188 expansion_config.fab_revision);
189 MUX_GUMSTIX();
190 setenv("expansionname", "tobiduo");
191 break;
192 case GUMSTIX_PALO35:
193 printf("Recognized Palo35 expansion board (rev %d %s)\n",
194 expansion_config.revision,
195 expansion_config.fab_revision);
196 MUX_GUMSTIX();
197 setenv("defaultdisplay", "lcd35");
198 setenv("expansionname", "palo35");
199 break;
200 case GUMSTIX_PALO43:
201 printf("Recognized Palo43 expansion board (rev %d %s)\n",
202 expansion_config.revision,
203 expansion_config.fab_revision);
204 MUX_GUMSTIX();
205 setenv("defaultdisplay", "lcd43");
206 setenv("expansionname", "palo43");
207 break;
208 case GUMSTIX_CHESTNUT43:
209 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
210 expansion_config.revision,
211 expansion_config.fab_revision);
212 MUX_GUMSTIX();
213 setenv("defaultdisplay", "lcd43");
214 setenv("expansionname", "chestnut43");
215 break;
216 case GUMSTIX_PINTO:
217 printf("Recognized Pinto expansion board (rev %d %s)\n",
218 expansion_config.revision,
219 expansion_config.fab_revision);
220 MUX_GUMSTIX();
221 break;
222 case GUMSTIX_GALLOP43:
223 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
224 expansion_config.revision,
225 expansion_config.fab_revision);
226 MUX_GUMSTIX();
227 setenv("defaultdisplay", "lcd43");
228 setenv("expansionname", "gallop43");
229 break;
230 case GUMSTIX_ALTO35:
231 printf("Recognized Alto35 expansion board (rev %d %s)\n",
232 expansion_config.revision,
233 expansion_config.fab_revision);
234 MUX_GUMSTIX();
235 MUX_ALTO35();
236 setenv("defaultdisplay", "lcd35");
237 setenv("expansionname", "alto35");
238 break;
239 case GUMSTIX_STAGECOACH:
240 printf("Recognized Stagecoach expansion board (rev %d %s)\n",
241 expansion_config.revision,
242 expansion_config.fab_revision);
243 MUX_GUMSTIX();
244 break;
245 case GUMSTIX_THUMBO:
246 printf("Recognized Thumbo expansion board (rev %d %s)\n",
247 expansion_config.revision,
248 expansion_config.fab_revision);
249 MUX_GUMSTIX();
250 break;
251 case GUMSTIX_TURTLECORE:
252 printf("Recognized Turtlecore expansion board (rev %d %s)\n",
253 expansion_config.revision,
254 expansion_config.fab_revision);
255 MUX_GUMSTIX();
256 break;
257 case GUMSTIX_ARBOR43C:
258 printf("Recognized Arbor43C expansion board (rev %d %s)\n",
259 expansion_config.revision,
260 expansion_config.fab_revision);
261 MUX_GUMSTIX();
262 MUX_ARBOR43C();
263 setenv("defaultdisplay", "lcd43");
264 setenv("expansionname", "arbor43c");
265 break;
266 case ETTUS_USRP_E:
267 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
268 expansion_config.revision,
269 expansion_config.fab_revision);
270 MUX_GUMSTIX();
271 MUX_USRP_E();
272 setenv("defaultdisplay", "dvi");
273 break;
274 case GUMSTIX_NO_EEPROM:
275 case GUMSTIX_EMPTY_EEPROM:
276 puts("No or empty EEPROM on expansion board\n");
277 MUX_GUMSTIX();
278 setenv("expansionname", "tobi");
279 break;
280 default:
281 printf("Unrecognized expansion board 0x%08x\n", expansion_id);
282 break;
283 }
284
285 if (expansion_config.content == 1)
286 setenv(expansion_config.env_var, expansion_config.env_setting);
287
288 omap_die_id_display();
289
290 if (get_cpu_family() == CPU_OMAP34XX)
291 setenv("boardname", "overo");
292 else
293 setenv("boardname", "overo-storm");
294
295 return 0;
296}
297
298#if defined(CONFIG_CMD_NET)
299
300static const u32 gpmc_lan_config[] = {
301 NET_LAN9221_GPMC_CONFIG1,
302 NET_LAN9221_GPMC_CONFIG2,
303 NET_LAN9221_GPMC_CONFIG3,
304 NET_LAN9221_GPMC_CONFIG4,
305 NET_LAN9221_GPMC_CONFIG5,
306 NET_LAN9221_GPMC_CONFIG6,
307
308};
309
310
311
312
313
314
315static void setup_net_chip(void)
316{
317 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
318
319
320 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
321
322 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
323
324 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
325 &ctrl_base->gpmc_nadv_ale);
326}
327
328
329
330
331
332static void reset_net_chip(void)
333{
334
335 if (!gpio_request(64, "")) {
336 gpio_direction_output(64, 0);
337 gpio_set_value(64, 1);
338 udelay(1);
339 gpio_set_value(64, 0);
340 udelay(1);
341 gpio_set_value(64, 1);
342 }
343}
344
345int board_eth_init(bd_t *bis)
346{
347 unsigned int expansion_id;
348 int rc = 0;
349
350#ifdef CONFIG_SMC911X
351 expansion_id = get_expansion_id();
352 switch (expansion_id) {
353 case GUMSTIX_TOBI_DUO:
354
355 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
356 0x2B000000, GPMC_SIZE_16M);
357
358 case GUMSTIX_TOBI:
359 case GUMSTIX_CHESTNUT43:
360 case GUMSTIX_STAGECOACH:
361 case GUMSTIX_NO_EEPROM:
362 case GUMSTIX_EMPTY_EEPROM:
363
364 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
365 0x2C000000, GPMC_SIZE_16M);
366
367 setup_net_chip();
368 reset_net_chip();
369
370 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
371 break;
372 default:
373 break;
374 }
375#endif
376
377 return rc;
378}
379#endif
380
381#if defined(CONFIG_GENERIC_MMC)
382int board_mmc_init(bd_t *bis)
383{
384 return omap_mmc_init(0, 0, 0, -1, -1);
385}
386#endif
387
388#if defined(CONFIG_GENERIC_MMC)
389void board_mmc_power_init(void)
390{
391 twl4030_power_mmc_init(0);
392}
393#endif
394
395#if defined(CONFIG_USB_EHCI)
396static struct omap_usbhs_board_data usbhs_bdata = {
397 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
398 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
399 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
400};
401
402#define GUMSTIX_GPIO_USBH_CPEN 168
403int ehci_hcd_init(int index, enum usb_init_type init,
404 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
405{
406
407 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen"))
408 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1);
409
410 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
411}
412
413int ehci_hcd_stop(void)
414{
415
416 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
417 gpio_free(GUMSTIX_GPIO_USBH_CPEN);
418
419 return omap_ehci_hcd_stop();
420}
421
422#endif
423
