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fcc7fe42 AG |
1 | /* |
2 | * (C) Copyright 2009 Wolfgang Denk <wd@denx.de> | |
3 | * (C) Copyright 2009 Dave Srl www.dave.eu | |
4 | * (C) Copyright 2010 ifm ecomatic GmbH | |
5 | * | |
6 | * See file CREDITS for list of people who contributed to this | |
7 | * project. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License as | |
11 | * published by the Free Software Foundation; either version 2 of | |
12 | * the License, or (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #include <common.h> | |
16 | #include <asm/bitops.h> | |
17 | #include <command.h> | |
18 | #include <asm/io.h> | |
19 | #include <asm/processor.h> | |
20 | #include <asm/mpc512x.h> | |
21 | #include <fdt_support.h> | |
22 | #ifdef CONFIG_MISC_INIT_R | |
23 | #include <i2c.h> | |
24 | #endif | |
25 | ||
26 | DECLARE_GLOBAL_DATA_PTR; | |
27 | ||
28 | static void gpio_configure(void) | |
29 | { | |
30 | immap_t *im; | |
31 | gpio512x_t *gpioregs; | |
32 | ||
33 | im = (immap_t *) CONFIG_SYS_IMMR; | |
34 | gpioregs = &im->gpio; | |
35 | out_be32(&gpioregs->gpodr, 0x00290000); /* open drain */ | |
36 | out_be32(&gpioregs->gpdat, 0x80001040); /* data (when output) */ | |
37 | ||
38 | /* | |
39 | * out_be32(&gpioregs->gpdir, 0xC2293020); | |
40 | * workaround for a hardware affect: configure direction in pieces, | |
41 | * setting all outputs at once drops the reset line too low and | |
42 | * makes us lose the MII connection (breaks ethernet for us) | |
43 | */ | |
44 | out_be32(&gpioregs->gpdir, 0x02003060); /* direction */ | |
45 | setbits_be32(&gpioregs->gpdir, 0x00200000); /* += reset asi */ | |
46 | udelay(10); | |
47 | setbits_be32(&gpioregs->gpdir, 0x00080000); /* += reset safety */ | |
48 | udelay(10); | |
49 | setbits_be32(&gpioregs->gpdir, 0x00010000); /* += reset comm */ | |
50 | udelay(10); | |
51 | setbits_be32(&gpioregs->gpdir, 0xC0000000); /* += backlight, KB sel */ | |
52 | ||
53 | /* to turn from red to yellow when U-Boot runs */ | |
54 | setbits_be32(&gpioregs->gpdat, 0x00002020); | |
55 | out_be32(&gpioregs->gpimr, 0x00000000); /* interrupt mask */ | |
56 | out_be32(&gpioregs->gpicr1, 0x00000004); /* interrupt sense part 1 */ | |
57 | out_be32(&gpioregs->gpicr2, 0x00A80000); /* interrupt sense part 2 */ | |
58 | out_be32(&gpioregs->gpier, 0xFFFFFFFF); /* interrupt events, clear */ | |
59 | } | |
60 | ||
61 | /* the physical location of the pins */ | |
62 | #define GPIOKEY_ROW_BITMASK 0x40000000 | |
63 | #define GPIOKEY_ROW_UPPER 0 | |
64 | #define GPIOKEY_ROW_LOWER 1 | |
65 | ||
66 | #define GPIOKEY_COL0_BITMASK 0x20000000 | |
67 | #define GPIOKEY_COL1_BITMASK 0x10000000 | |
68 | #define GPIOKEY_COL2_BITMASK 0x08000000 | |
69 | ||
70 | /* the logical presentation of pressed keys */ | |
71 | #define GPIOKEY_BIT_FNLEFT (1 << 5) | |
72 | #define GPIOKEY_BIT_FNRIGHT (1 << 4) | |
73 | #define GPIOKEY_BIT_DIRUP (1 << 3) | |
74 | #define GPIOKEY_BIT_DIRLEFT (1 << 2) | |
75 | #define GPIOKEY_BIT_DIRRIGHT (1 << 1) | |
76 | #define GPIOKEY_BIT_DIRDOWN (1 << 0) | |
77 | ||
78 | /* the hotkey combination which starts recovery */ | |
79 | #define GPIOKEY_BITS_RECOVERY (GPIOKEY_BIT_FNLEFT | GPIOKEY_BIT_DIRUP | \ | |
80 | GPIOKEY_BIT_DIRDOWN) | |
81 | ||
82 | static void gpio_selectrow(gpio512x_t *gpioregs, u32 row) | |
83 | { | |
84 | ||
85 | if (row) | |
86 | setbits_be32(&gpioregs->gpdat, GPIOKEY_ROW_BITMASK); | |
87 | else | |
88 | clrbits_be32(&gpioregs->gpdat, GPIOKEY_ROW_BITMASK); | |
89 | udelay(10); | |
90 | } | |
91 | ||
92 | static u32 gpio_querykbd(void) | |
93 | { | |
94 | immap_t *im; | |
95 | gpio512x_t *gpioregs; | |
96 | u32 keybits; | |
97 | u32 input; | |
98 | ||
99 | im = (immap_t *)CONFIG_SYS_IMMR; | |
100 | gpioregs = &im->gpio; | |
101 | keybits = 0; | |
102 | ||
103 | /* query upper row */ | |
104 | gpio_selectrow(gpioregs, GPIOKEY_ROW_UPPER); | |
105 | input = in_be32(&gpioregs->gpdat); | |
106 | if ((input & GPIOKEY_COL0_BITMASK) == 0) | |
107 | keybits |= GPIOKEY_BIT_FNLEFT; | |
108 | if ((input & GPIOKEY_COL1_BITMASK) == 0) | |
109 | keybits |= GPIOKEY_BIT_DIRUP; | |
110 | if ((input & GPIOKEY_COL2_BITMASK) == 0) | |
111 | keybits |= GPIOKEY_BIT_FNRIGHT; | |
112 | ||
113 | /* query lower row */ | |
114 | gpio_selectrow(gpioregs, GPIOKEY_ROW_LOWER); | |
115 | input = in_be32(&gpioregs->gpdat); | |
116 | if ((input & GPIOKEY_COL0_BITMASK) == 0) | |
117 | keybits |= GPIOKEY_BIT_DIRLEFT; | |
118 | if ((input & GPIOKEY_COL1_BITMASK) == 0) | |
119 | keybits |= GPIOKEY_BIT_DIRRIGHT; | |
120 | if ((input & GPIOKEY_COL2_BITMASK) == 0) | |
121 | keybits |= GPIOKEY_BIT_DIRDOWN; | |
122 | ||
123 | /* return bit pattern for keys */ | |
124 | return keybits; | |
125 | } | |
126 | ||
127 | /* excerpt from the recovery's hw_info.h */ | |
128 | ||
129 | static int eeprom_diag = 1; | |
130 | ||
131 | struct __attribute__ ((__packed__)) eeprom_layout { | |
132 | char magic[3]; /** 'ifm' */ | |
133 | u8 len[2]; /** content length without magic/len fields */ | |
134 | u8 version[3]; /** structure version */ | |
135 | u8 type; /** type of PCB */ | |
136 | u8 reserved[0x37]; /** padding up to offset 0x40 */ | |
137 | u8 macaddress[6]; /** ethernet MAC (for the mainboard) @0x40 */ | |
138 | }; | |
139 | ||
140 | #define HW_COMP_MAINCPU 2 | |
141 | ||
142 | static struct eeprom_layout eeprom_content; | |
143 | static int eeprom_was_read; /* has_been_read */ | |
144 | static int eeprom_is_valid; | |
145 | static int eeprom_version; | |
146 | ||
147 | #define get_eeprom_field_int(name) ({ \ | |
148 | int value; \ | |
149 | int idx; \ | |
150 | value = 0; \ | |
151 | for (idx = 0; idx < sizeof(name); idx++) { \ | |
152 | value <<= 8; \ | |
153 | value |= name[idx]; \ | |
154 | } \ | |
155 | value; \ | |
156 | }) | |
157 | ||
158 | static int read_eeprom(void) | |
159 | { | |
160 | int eeprom_datalen; | |
161 | int ret; | |
162 | ||
163 | if (eeprom_was_read) | |
164 | return 0; | |
165 | ||
166 | eeprom_is_valid = 0; | |
167 | ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, | |
168 | CONFIG_SYS_I2C_EEPROM_ADDR_LEN, | |
169 | (uchar *)&eeprom_content, sizeof(eeprom_content)); | |
170 | if (eeprom_diag) { | |
171 | printf("DIAG: %s() read rc[%d], size[%d]\n", | |
172 | __func__, ret, sizeof(eeprom_content)); | |
173 | } | |
174 | ||
175 | if (ret != 0) | |
176 | return -1; | |
177 | ||
178 | eeprom_was_read = 1; | |
179 | ||
180 | /* | |
181 | * check validity of EEPROM content | |
182 | * (check version, length, optionally checksum) | |
183 | */ | |
184 | eeprom_is_valid = 1; | |
185 | eeprom_datalen = get_eeprom_field_int(eeprom_content.len); | |
186 | eeprom_version = get_eeprom_field_int(eeprom_content.version); | |
187 | ||
188 | if (eeprom_diag) { | |
189 | printf("DIAG: %s() magic[%c%c%c] len[%d] ver[%d] type[%d]\n", | |
190 | __func__, eeprom_content.magic[0], | |
191 | eeprom_content.magic[1], eeprom_content.magic[2], | |
192 | eeprom_datalen, eeprom_version, eeprom_content.type); | |
193 | } | |
194 | if (strncmp(eeprom_content.magic, "ifm", strlen("ifm")) != 0) | |
195 | eeprom_is_valid = 0; | |
196 | if (eeprom_datalen < sizeof(struct eeprom_layout) - 5) | |
197 | eeprom_is_valid = 0; | |
198 | if ((eeprom_version != 1) && (eeprom_version != 2)) | |
199 | eeprom_is_valid = 0; | |
200 | if (eeprom_content.type != HW_COMP_MAINCPU) | |
201 | eeprom_is_valid = 0; | |
202 | ||
203 | if (eeprom_diag) | |
204 | printf("DIAG: %s() valid[%d]\n", __func__, eeprom_is_valid); | |
205 | ||
206 | return ret; | |
207 | } | |
208 | ||
209 | int mac_read_from_eeprom(void) | |
210 | { | |
211 | const u8 *mac; | |
212 | ||
213 | if (read_eeprom()) { | |
214 | printf("I2C EEPROM read failed.\n"); | |
215 | return -1; | |
216 | } | |
217 | ||
218 | if (!eeprom_is_valid) { | |
219 | printf("I2C EEPROM content not valid\n"); | |
220 | return -1; | |
221 | } | |
222 | ||
223 | mac = NULL; | |
224 | switch (eeprom_version) { | |
225 | case 1: | |
226 | case 2: | |
227 | mac = (const u8 *)&eeprom_content.macaddress; | |
228 | break; | |
229 | } | |
230 | ||
231 | if (mac && is_valid_ether_addr(mac)) { | |
232 | eth_setenv_enetaddr("ethaddr", mac); | |
233 | printf("DIAG: %s() MAC value [%s]\n", | |
234 | __func__, getenv("ethaddr")); | |
235 | } | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | /* | |
241 | * BEWARE! | |
242 | * this board uses DDR1(!) Micron SDRAM, *NOT* the DDR2 | |
243 | * which the ADS, Aria or PDM360NG boards are using | |
244 | * (the steps outlined here refer to the Micron datasheet) | |
245 | */ | |
246 | u32 sdram_init_seq[] = { | |
247 | /* item 6, at least one NOP after CKE went high */ | |
248 | CONFIG_SYS_DDRCMD_NOP, | |
249 | CONFIG_SYS_DDRCMD_NOP, | |
250 | CONFIG_SYS_DDRCMD_NOP, | |
251 | CONFIG_SYS_DDRCMD_NOP, | |
252 | CONFIG_SYS_DDRCMD_NOP, | |
253 | CONFIG_SYS_DDRCMD_NOP, | |
254 | CONFIG_SYS_DDRCMD_NOP, | |
255 | CONFIG_SYS_DDRCMD_NOP, | |
256 | CONFIG_SYS_DDRCMD_NOP, | |
257 | CONFIG_SYS_DDRCMD_NOP, | |
258 | /* item 7, precharge all; item 8, tRP (20ns) */ | |
259 | CONFIG_SYS_DDRCMD_PCHG_ALL, | |
260 | CONFIG_SYS_DDRCMD_NOP, | |
261 | /* item 9, extended mode register; item 10, tMRD 10ns) */ | |
262 | CONFIG_SYS_MICRON_EMODE | CONFIG_SYS_MICRON_EMODE_PARAM, | |
263 | CONFIG_SYS_DDRCMD_NOP, | |
264 | /* | |
265 | * item 11, (base) mode register _with_ reset DLL; | |
266 | * item 12, tMRD (10ns) | |
267 | */ | |
268 | CONFIG_SYS_MICRON_BMODE | CONFIG_SYS_MICRON_BMODE_RSTDLL | | |
269 | CONFIG_SYS_MICRON_BMODE_PARAM, | |
270 | CONFIG_SYS_DDRCMD_NOP, | |
271 | /* item 13, precharge all; item 14, tRP (20ns) */ | |
272 | CONFIG_SYS_DDRCMD_PCHG_ALL, | |
273 | CONFIG_SYS_DDRCMD_NOP, | |
274 | /* | |
275 | * item 15, auto refresh (i.e. refresh with CKE held high); | |
276 | * item 16, tRFC (70ns) | |
277 | */ | |
278 | CONFIG_SYS_DDRCMD_RFSH, | |
279 | CONFIG_SYS_DDRCMD_NOP, | |
280 | CONFIG_SYS_DDRCMD_NOP, | |
281 | CONFIG_SYS_DDRCMD_NOP, | |
282 | CONFIG_SYS_DDRCMD_NOP, | |
283 | CONFIG_SYS_DDRCMD_NOP, | |
284 | CONFIG_SYS_DDRCMD_NOP, | |
285 | CONFIG_SYS_DDRCMD_NOP, | |
286 | CONFIG_SYS_DDRCMD_NOP, | |
287 | /* | |
288 | * item 17, auto refresh (i.e. refresh with CKE held high); | |
289 | * item 18, tRFC (70ns) | |
290 | */ | |
291 | CONFIG_SYS_DDRCMD_RFSH, | |
292 | CONFIG_SYS_DDRCMD_NOP, | |
293 | CONFIG_SYS_DDRCMD_NOP, | |
294 | CONFIG_SYS_DDRCMD_NOP, | |
295 | CONFIG_SYS_DDRCMD_NOP, | |
296 | CONFIG_SYS_DDRCMD_NOP, | |
297 | CONFIG_SYS_DDRCMD_NOP, | |
298 | CONFIG_SYS_DDRCMD_NOP, | |
299 | CONFIG_SYS_DDRCMD_NOP, | |
300 | /* item 19, optional, unassert DLL reset; item 20, tMRD (20ns) */ | |
301 | CONFIG_SYS_MICRON_BMODE | CONFIG_SYS_MICRON_BMODE_PARAM, | |
302 | CONFIG_SYS_DDRCMD_NOP, | |
303 | /* | |
304 | * item 21, "actually done", but make sure 200 DRAM clock cycles | |
305 | * have passed after DLL reset before READ requests are issued | |
306 | * (200 cycles at 160MHz -> 1.25 usec) | |
307 | */ | |
308 | /* EMPTY, optional, we don't do it */ | |
309 | }; | |
310 | ||
311 | phys_size_t initdram(int board_type) | |
312 | { | |
313 | return fixed_sdram(NULL, sdram_init_seq, ARRAY_SIZE(sdram_init_seq)); | |
314 | } | |
315 | ||
316 | int misc_init_r(void) | |
317 | { | |
318 | u32 keys; | |
319 | char *s; | |
320 | int want_recovery; | |
321 | ||
322 | /* we use bus I2C-0 for the on-board eeprom */ | |
323 | i2c_set_bus_num(0); | |
324 | ||
325 | /* setup GPIO directions and initial values */ | |
326 | gpio_configure(); | |
327 | ||
328 | /* | |
329 | * check the GPIO keyboard, | |
330 | * enforced start of the recovery when | |
331 | * - the appropriate keys were pressed | |
332 | * - a previous installation was aborted or has failed | |
333 | * - "some" external software told us to | |
334 | */ | |
335 | want_recovery = 0; | |
336 | keys = gpio_querykbd(); | |
337 | printf("GPIO keyboard status [0x%08X]\n", keys); | |
338 | /* XXX insist in the _exact_ combination? */ | |
339 | if ((keys & GPIOKEY_BITS_RECOVERY) == GPIOKEY_BITS_RECOVERY) { | |
340 | printf("GPIO keyboard requested RECOVERY\n"); | |
341 | /* XXX TODO | |
342 | * refine the logic to detect the first keypress, and | |
343 | * wait to recheck IF it was the recovery combination? | |
344 | */ | |
345 | want_recovery = 1; | |
346 | } | |
347 | s = getenv("install_in_progress"); | |
348 | if ((s != NULL) && (*s != '\0')) { | |
349 | printf("previous installation aborted, running RECOVERY\n"); | |
350 | want_recovery = 1; | |
351 | } | |
352 | s = getenv("install_failed"); | |
353 | if ((s != NULL) && (*s != '\0')) { | |
354 | printf("previous installation FAILED, running RECOVERY\n"); | |
355 | want_recovery = 1; | |
356 | } | |
357 | s = getenv("want_recovery"); | |
358 | if ((s != NULL) && (*s != '\0')) { | |
359 | printf("running RECOVERY according to the request\n"); | |
360 | want_recovery = 1; | |
361 | } | |
362 | ||
363 | if (want_recovery) | |
364 | setenv("bootcmd", "run recovery"); | |
365 | ||
366 | /* | |
367 | * boot the recovery system without waiting; boot the | |
368 | * production system without waiting by default, only | |
369 | * insert a pause (to provide a chance to get a prompt) | |
370 | * when GPIO keys were pressed during power on | |
371 | */ | |
372 | if (want_recovery) | |
373 | setenv("bootdelay", "0"); | |
374 | else if (!keys) | |
375 | setenv("bootdelay", "0"); | |
376 | else | |
377 | setenv("bootdelay", "2"); | |
378 | ||
379 | /* get the ethernet MAC from I2C EEPROM */ | |
380 | mac_read_from_eeprom(); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | /* setup specific IO pad configuration */ | |
386 | static iopin_t ioregs_init[] = { | |
387 | { /* LPC CS3 */ | |
388 | offsetof(struct ioctrl512x, io_control_nfc_ce0), 1, | |
389 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
390 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
391 | }, | |
392 | { /* LPC CS1 */ | |
393 | offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, | |
394 | IO_PIN_OVER_DRVSTR, | |
395 | IO_PIN_DS(2), | |
396 | }, | |
397 | { /* LPC CS2 */ | |
398 | offsetof(struct ioctrl512x, io_control_lpc_cs2), 1, | |
399 | IO_PIN_OVER_DRVSTR, | |
400 | IO_PIN_DS(2), | |
401 | }, | |
402 | { /* LPC CS4, CS5 */ | |
403 | offsetof(struct ioctrl512x, io_control_pata_ce1), 2, | |
404 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
405 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
406 | }, | |
407 | { /* SDHC CLK, CMD, D0, D1, D2, D3 */ | |
408 | offsetof(struct ioctrl512x, io_control_pata_ior), 6, | |
409 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
410 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
411 | }, | |
412 | { /* GPIO keyboard */ | |
413 | offsetof(struct ioctrl512x, io_control_pci_ad30), 4, | |
414 | IO_PIN_OVER_FMUX, | |
415 | IO_PIN_FMUX(3), | |
416 | }, | |
417 | { /* GPIO DN1 PF, LCD power, DN2 PF */ | |
418 | offsetof(struct ioctrl512x, io_control_pci_ad26), 3, | |
419 | IO_PIN_OVER_FMUX, | |
420 | IO_PIN_FMUX(3), | |
421 | }, | |
422 | { /* GPIO reset AS-i */ | |
423 | offsetof(struct ioctrl512x, io_control_pci_ad21), 1, | |
424 | IO_PIN_OVER_FMUX, | |
425 | IO_PIN_FMUX(3), | |
426 | }, | |
427 | { /* GPIO reset safety */ | |
428 | offsetof(struct ioctrl512x, io_control_pci_ad19), 1, | |
429 | IO_PIN_OVER_FMUX, | |
430 | IO_PIN_FMUX(3), | |
431 | }, | |
432 | { /* GPIO reset netX */ | |
433 | offsetof(struct ioctrl512x, io_control_pci_ad16), 1, | |
434 | IO_PIN_OVER_FMUX, | |
435 | IO_PIN_FMUX(3), | |
436 | }, | |
437 | { /* GPIO ma2 en */ | |
438 | offsetof(struct ioctrl512x, io_control_pci_ad15), 1, | |
439 | IO_PIN_OVER_FMUX, | |
440 | IO_PIN_FMUX(3), | |
441 | }, | |
442 | { /* GPIO SD CD, SD WP */ | |
443 | offsetof(struct ioctrl512x, io_control_pci_ad08), 2, | |
444 | IO_PIN_OVER_FMUX, | |
445 | IO_PIN_FMUX(3), | |
446 | }, | |
447 | { /* FEC RX DV */ | |
448 | offsetof(struct ioctrl512x, io_control_pci_ad06), 1, | |
449 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
450 | IO_PIN_FMUX(2) | IO_PIN_DS(2), | |
451 | }, | |
452 | { /* GPIO AS-i prog, AS-i done, LCD backlight */ | |
453 | offsetof(struct ioctrl512x, io_control_pci_ad05), 3, | |
454 | IO_PIN_OVER_FMUX, | |
455 | IO_PIN_FMUX(3), | |
456 | }, | |
457 | { /* GPIO AS-i wdg */ | |
458 | offsetof(struct ioctrl512x, io_control_pci_req2), 1, | |
459 | IO_PIN_OVER_FMUX, | |
460 | IO_PIN_FMUX(3), | |
461 | }, | |
462 | { /* GPIO safety wdg */ | |
463 | offsetof(struct ioctrl512x, io_control_pci_req1), 1, | |
464 | IO_PIN_OVER_FMUX, | |
465 | IO_PIN_FMUX(3), | |
466 | }, | |
467 | { /* GPIO netX wdg */ | |
468 | offsetof(struct ioctrl512x, io_control_pci_req0), 1, | |
469 | IO_PIN_OVER_FMUX, | |
470 | IO_PIN_FMUX(3), | |
471 | }, | |
472 | { /* GPIO IRQ powerfail */ | |
473 | offsetof(struct ioctrl512x, io_control_pci_inta), 1, | |
474 | IO_PIN_OVER_FMUX, | |
475 | IO_PIN_FMUX(3), | |
476 | }, | |
477 | { /* GPIO AS-i PWRD */ | |
478 | offsetof(struct ioctrl512x, io_control_pci_frame), 1, | |
479 | IO_PIN_OVER_FMUX, | |
480 | IO_PIN_FMUX(3), | |
481 | }, | |
482 | { /* GPIO LED0, LED1 */ | |
483 | offsetof(struct ioctrl512x, io_control_pci_idsel), 2, | |
484 | IO_PIN_OVER_FMUX, | |
485 | IO_PIN_FMUX(3), | |
486 | }, | |
487 | { /* GPIO IRQ AS-i 1, IRQ AS-i 2, IRQ safety */ | |
488 | offsetof(struct ioctrl512x, io_control_pci_irdy), 3, | |
489 | IO_PIN_OVER_FMUX, | |
490 | IO_PIN_FMUX(3), | |
491 | }, | |
492 | { /* DIU clk */ | |
493 | offsetof(struct ioctrl512x, io_control_spdif_txclk), 1, | |
494 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
495 | IO_PIN_FMUX(2) | IO_PIN_DS(2), | |
496 | }, | |
497 | { /* FEC TX ER, CRS */ | |
498 | offsetof(struct ioctrl512x, io_control_spdif_tx), 2, | |
499 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
500 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
501 | }, | |
502 | { /* GPIO/GPT */ /* to *NOT* have the EXT IRQ0 float */ | |
503 | offsetof(struct ioctrl512x, io_control_irq0), 1, | |
504 | IO_PIN_OVER_FMUX, | |
505 | IO_PIN_FMUX(3), | |
506 | }, | |
507 | { /* | |
508 | * FEC col, tx en, tx clk, txd 0-3, mdc, rx er, | |
509 | * rdx 3-0, mdio, rx clk | |
510 | */ | |
511 | offsetof(struct ioctrl512x, io_control_psc0_0), 15, | |
512 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
513 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
514 | }, | |
515 | /* optional: make sure PSC3 remains the serial console */ | |
516 | { /* LPC CS6 */ | |
517 | offsetof(struct ioctrl512x, io_control_psc3_4), 1, | |
518 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
519 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
520 | }, | |
521 | /* make sure PSC4 remains available for SPI, | |
522 | *BUT* PSC4_1 is a GPIO kind of SS! */ | |
523 | { /* enforce drive strength on the SPI pin */ | |
524 | offsetof(struct ioctrl512x, io_control_psc4_0), 5, | |
525 | IO_PIN_OVER_DRVSTR, | |
526 | IO_PIN_DS(2), | |
527 | }, | |
528 | { | |
529 | offsetof(struct ioctrl512x, io_control_psc4_1), 1, | |
530 | IO_PIN_OVER_FMUX, | |
531 | IO_PIN_FMUX(3), | |
532 | }, | |
533 | /* optional: make sure PSC5 remains available for SPI */ | |
534 | { /* enforce drive strength on the SPI pin */ | |
535 | offsetof(struct ioctrl512x, io_control_psc5_0), 5, | |
536 | IO_PIN_OVER_DRVSTR, | |
537 | IO_PIN_DS(1), | |
538 | }, | |
539 | { /* LPC TSIZ1 */ | |
540 | offsetof(struct ioctrl512x, io_control_psc6_0), 1, | |
541 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
542 | IO_PIN_FMUX(1) | IO_PIN_DS(2), | |
543 | }, | |
544 | { /* DIU hsync */ | |
545 | offsetof(struct ioctrl512x, io_control_psc6_1), 1, | |
546 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
547 | IO_PIN_FMUX(2) | IO_PIN_DS(1), | |
548 | }, | |
549 | { /* DIU vsync */ | |
550 | offsetof(struct ioctrl512x, io_control_psc6_4), 1, | |
551 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
552 | IO_PIN_FMUX(2) | IO_PIN_DS(1), | |
553 | }, | |
554 | { /* PSC7, part of DIU RGB */ | |
555 | offsetof(struct ioctrl512x, io_control_psc7_0), 2, | |
556 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
557 | IO_PIN_FMUX(2) | IO_PIN_DS(1), | |
558 | }, | |
559 | { /* PSC7, safety UART */ | |
560 | offsetof(struct ioctrl512x, io_control_psc7_2), 2, | |
561 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
562 | IO_PIN_FMUX(0) | IO_PIN_DS(1), | |
563 | }, | |
564 | { /* DIU (part of) RGB[] */ | |
565 | offsetof(struct ioctrl512x, io_control_psc8_3), 16, | |
566 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
567 | IO_PIN_FMUX(2) | IO_PIN_DS(1), | |
568 | }, | |
569 | { /* DIU data enable */ | |
570 | offsetof(struct ioctrl512x, io_control_psc11_4), 1, | |
571 | IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR, | |
572 | IO_PIN_FMUX(2) | IO_PIN_DS(1), | |
573 | }, | |
574 | /* reduce LPB drive strength for improved EMI */ | |
575 | { /* LPC OE, LPC RW */ | |
576 | offsetof(struct ioctrl512x, io_control_lpc_oe), 2, | |
577 | IO_PIN_OVER_DRVSTR, | |
578 | IO_PIN_DS(2), | |
579 | }, | |
580 | { /* LPC AX03 through LPC AD00 */ | |
581 | offsetof(struct ioctrl512x, io_control_lpc_ax03), 36, | |
582 | IO_PIN_OVER_DRVSTR, | |
583 | IO_PIN_DS(2), | |
584 | }, | |
585 | { /* LPC CS5 */ | |
586 | offsetof(struct ioctrl512x, io_control_pata_ce2), 1, | |
587 | IO_PIN_OVER_DRVSTR, | |
588 | IO_PIN_DS(2), | |
589 | }, | |
590 | { /* SDHC CLK */ | |
591 | offsetof(struct ioctrl512x, io_control_nfc_wp), 1, | |
592 | IO_PIN_OVER_DRVSTR, | |
593 | IO_PIN_DS(2), | |
594 | }, | |
595 | { /* SDHC DATA */ | |
596 | offsetof(struct ioctrl512x, io_control_nfc_ale), 4, | |
597 | IO_PIN_OVER_DRVSTR, | |
598 | IO_PIN_DS(2), | |
599 | }, | |
600 | }; | |
601 | ||
602 | int checkboard(void) | |
603 | { | |
604 | puts("Board: ifm AC14xx\n"); | |
605 | ||
606 | /* initialize function mux & slew rate IO inter alia on IO Pins */ | |
607 | iopin_initialize_bits(ioregs_init, ARRAY_SIZE(ioregs_init)); | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
612 | #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) | |
613 | void ft_board_setup(void *blob, bd_t *bd) | |
614 | { | |
615 | ft_cpu_setup(blob, bd); | |
616 | } | |
617 | #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ |