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Anatolij Gustschind6398902013-02-08 00:03:48 +00001/*
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 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Anatolij Gustschind6398902013-02-08 00:03:48 +00007 */
8
9#include <common.h>
10#include <asm/bitops.h>
11#include <command.h>
12#include <asm/io.h>
13#include <asm/processor.h>
14#include <asm/mpc512x.h>
15#include <fdt_support.h>
16#ifdef CONFIG_MISC_INIT_R
17#include <i2c.h>
18#endif
19
Gerhard Sittig68bf0d42013-06-05 14:51:07 +020020static int eeprom_diag;
21static int mac_diag;
22static int gpio_diag;
23
Anatolij Gustschind6398902013-02-08 00:03:48 +000024DECLARE_GLOBAL_DATA_PTR;
25
26static void gpio_configure(void)
27{
28 immap_t *im;
29 gpio512x_t *gpioregs;
30
31 im = (immap_t *) CONFIG_SYS_IMMR;
32 gpioregs = &im->gpio;
33 out_be32(&gpioregs->gpodr, 0x00290000); /* open drain */
34 out_be32(&gpioregs->gpdat, 0x80001040); /* data (when output) */
35
36 /*
37 * out_be32(&gpioregs->gpdir, 0xC2293020);
Gerhard Sittig7214cf12013-06-05 14:51:06 +020038 * workaround for a hardware effect: configure direction in pieces,
Anatolij Gustschind6398902013-02-08 00:03:48 +000039 * setting all outputs at once drops the reset line too low and
40 * makes us lose the MII connection (breaks ethernet for us)
41 */
42 out_be32(&gpioregs->gpdir, 0x02003060); /* direction */
43 setbits_be32(&gpioregs->gpdir, 0x00200000); /* += reset asi */
44 udelay(10);
45 setbits_be32(&gpioregs->gpdir, 0x00080000); /* += reset safety */
46 udelay(10);
47 setbits_be32(&gpioregs->gpdir, 0x00010000); /* += reset comm */
48 udelay(10);
49 setbits_be32(&gpioregs->gpdir, 0xC0000000); /* += backlight, KB sel */
50
51 /* to turn from red to yellow when U-Boot runs */
52 setbits_be32(&gpioregs->gpdat, 0x00002020);
53 out_be32(&gpioregs->gpimr, 0x00000000); /* interrupt mask */
54 out_be32(&gpioregs->gpicr1, 0x00000004); /* interrupt sense part 1 */
55 out_be32(&gpioregs->gpicr2, 0x00A80000); /* interrupt sense part 2 */
56 out_be32(&gpioregs->gpier, 0xFFFFFFFF); /* interrupt events, clear */
57}
58
59/* the physical location of the pins */
60#define GPIOKEY_ROW_BITMASK 0x40000000
61#define GPIOKEY_ROW_UPPER 0
62#define GPIOKEY_ROW_LOWER 1
63
64#define GPIOKEY_COL0_BITMASK 0x20000000
65#define GPIOKEY_COL1_BITMASK 0x10000000
66#define GPIOKEY_COL2_BITMASK 0x08000000
67
68/* the logical presentation of pressed keys */
69#define GPIOKEY_BIT_FNLEFT (1 << 5)
70#define GPIOKEY_BIT_FNRIGHT (1 << 4)
71#define GPIOKEY_BIT_DIRUP (1 << 3)
72#define GPIOKEY_BIT_DIRLEFT (1 << 2)
73#define GPIOKEY_BIT_DIRRIGHT (1 << 1)
74#define GPIOKEY_BIT_DIRDOWN (1 << 0)
75
76/* the hotkey combination which starts recovery */
77#define GPIOKEY_BITS_RECOVERY (GPIOKEY_BIT_FNLEFT | GPIOKEY_BIT_DIRUP | \
78 GPIOKEY_BIT_DIRDOWN)
79
80static void gpio_selectrow(gpio512x_t *gpioregs, u32 row)
81{
82
83 if (row)
84 setbits_be32(&gpioregs->gpdat, GPIOKEY_ROW_BITMASK);
85 else
86 clrbits_be32(&gpioregs->gpdat, GPIOKEY_ROW_BITMASK);
87 udelay(10);
88}
89
90static u32 gpio_querykbd(void)
91{
92 immap_t *im;
93 gpio512x_t *gpioregs;
94 u32 keybits;
95 u32 input;
96
97 im = (immap_t *)CONFIG_SYS_IMMR;
98 gpioregs = &im->gpio;
99 keybits = 0;
100
101 /* query upper row */
102 gpio_selectrow(gpioregs, GPIOKEY_ROW_UPPER);
103 input = in_be32(&gpioregs->gpdat);
104 if ((input & GPIOKEY_COL0_BITMASK) == 0)
105 keybits |= GPIOKEY_BIT_FNLEFT;
106 if ((input & GPIOKEY_COL1_BITMASK) == 0)
107 keybits |= GPIOKEY_BIT_DIRUP;
108 if ((input & GPIOKEY_COL2_BITMASK) == 0)
109 keybits |= GPIOKEY_BIT_FNRIGHT;
110
111 /* query lower row */
112 gpio_selectrow(gpioregs, GPIOKEY_ROW_LOWER);
113 input = in_be32(&gpioregs->gpdat);
114 if ((input & GPIOKEY_COL0_BITMASK) == 0)
115 keybits |= GPIOKEY_BIT_DIRLEFT;
116 if ((input & GPIOKEY_COL1_BITMASK) == 0)
117 keybits |= GPIOKEY_BIT_DIRRIGHT;
118 if ((input & GPIOKEY_COL2_BITMASK) == 0)
119 keybits |= GPIOKEY_BIT_DIRDOWN;
120
121 /* return bit pattern for keys */
122 return keybits;
123}
124
125/* excerpt from the recovery's hw_info.h */
126
Anatolij Gustschind6398902013-02-08 00:03:48 +0000127struct __attribute__ ((__packed__)) eeprom_layout {
128 char magic[3]; /** 'ifm' */
129 u8 len[2]; /** content length without magic/len fields */
130 u8 version[3]; /** structure version */
131 u8 type; /** type of PCB */
132 u8 reserved[0x37]; /** padding up to offset 0x40 */
133 u8 macaddress[6]; /** ethernet MAC (for the mainboard) @0x40 */
134};
135
136#define HW_COMP_MAINCPU 2
137
138static struct eeprom_layout eeprom_content;
139static int eeprom_was_read; /* has_been_read */
140static int eeprom_is_valid;
141static int eeprom_version;
142
143#define get_eeprom_field_int(name) ({ \
144 int value; \
145 int idx; \
146 value = 0; \
147 for (idx = 0; idx < sizeof(name); idx++) { \
148 value <<= 8; \
149 value |= name[idx]; \
150 } \
151 value; \
152})
153
154static int read_eeprom(void)
155{
156 int eeprom_datalen;
157 int ret;
158
159 if (eeprom_was_read)
160 return 0;
161
162 eeprom_is_valid = 0;
163 ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
164 CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
165 (uchar *)&eeprom_content, sizeof(eeprom_content));
166 if (eeprom_diag) {
167 printf("DIAG: %s() read rc[%d], size[%d]\n",
168 __func__, ret, sizeof(eeprom_content));
169 }
170
171 if (ret != 0)
172 return -1;
173
174 eeprom_was_read = 1;
175
176 /*
177 * check validity of EEPROM content
178 * (check version, length, optionally checksum)
179 */
180 eeprom_is_valid = 1;
181 eeprom_datalen = get_eeprom_field_int(eeprom_content.len);
182 eeprom_version = get_eeprom_field_int(eeprom_content.version);
183
184 if (eeprom_diag) {
185 printf("DIAG: %s() magic[%c%c%c] len[%d] ver[%d] type[%d]\n",
186 __func__, eeprom_content.magic[0],
187 eeprom_content.magic[1], eeprom_content.magic[2],
188 eeprom_datalen, eeprom_version, eeprom_content.type);
189 }
190 if (strncmp(eeprom_content.magic, "ifm", strlen("ifm")) != 0)
191 eeprom_is_valid = 0;
192 if (eeprom_datalen < sizeof(struct eeprom_layout) - 5)
193 eeprom_is_valid = 0;
194 if ((eeprom_version != 1) && (eeprom_version != 2))
195 eeprom_is_valid = 0;
196 if (eeprom_content.type != HW_COMP_MAINCPU)
197 eeprom_is_valid = 0;
198
199 if (eeprom_diag)
200 printf("DIAG: %s() valid[%d]\n", __func__, eeprom_is_valid);
201
202 return ret;
203}
204
205int mac_read_from_eeprom(void)
206{
207 const u8 *mac;
Gerhard Sittigeb5107d2013-06-05 14:51:05 +0200208 const char *mac_txt;
Anatolij Gustschind6398902013-02-08 00:03:48 +0000209
210 if (read_eeprom()) {
211 printf("I2C EEPROM read failed.\n");
212 return -1;
213 }
214
215 if (!eeprom_is_valid) {
216 printf("I2C EEPROM content not valid\n");
217 return -1;
218 }
219
220 mac = NULL;
221 switch (eeprom_version) {
222 case 1:
223 case 2:
224 mac = (const u8 *)&eeprom_content.macaddress;
225 break;
226 }
227
228 if (mac && is_valid_ether_addr(mac)) {
229 eth_setenv_enetaddr("ethaddr", mac);
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200230 if (mac_diag) {
231 mac_txt = getenv("ethaddr");
232 if (mac_txt)
233 printf("DIAG: MAC value [%s]\n", mac_txt);
234 else
235 printf("DIAG: failed to setup MAC env\n");
236 }
Anatolij Gustschind6398902013-02-08 00:03:48 +0000237 }
238
239 return 0;
240}
241
242/*
243 * BEWARE!
244 * this board uses DDR1(!) Micron SDRAM, *NOT* the DDR2
245 * which the ADS, Aria or PDM360NG boards are using
246 * (the steps outlined here refer to the Micron datasheet)
247 */
248u32 sdram_init_seq[] = {
249 /* item 6, at least one NOP after CKE went high */
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 CONFIG_SYS_DDRCMD_NOP,
259 CONFIG_SYS_DDRCMD_NOP,
260 /* item 7, precharge all; item 8, tRP (20ns) */
261 CONFIG_SYS_DDRCMD_PCHG_ALL,
262 CONFIG_SYS_DDRCMD_NOP,
263 /* item 9, extended mode register; item 10, tMRD 10ns) */
264 CONFIG_SYS_MICRON_EMODE | CONFIG_SYS_MICRON_EMODE_PARAM,
265 CONFIG_SYS_DDRCMD_NOP,
266 /*
267 * item 11, (base) mode register _with_ reset DLL;
268 * item 12, tMRD (10ns)
269 */
270 CONFIG_SYS_MICRON_BMODE | CONFIG_SYS_MICRON_BMODE_RSTDLL |
271 CONFIG_SYS_MICRON_BMODE_PARAM,
272 CONFIG_SYS_DDRCMD_NOP,
273 /* item 13, precharge all; item 14, tRP (20ns) */
274 CONFIG_SYS_DDRCMD_PCHG_ALL,
275 CONFIG_SYS_DDRCMD_NOP,
276 /*
277 * item 15, auto refresh (i.e. refresh with CKE held high);
278 * item 16, tRFC (70ns)
279 */
280 CONFIG_SYS_DDRCMD_RFSH,
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 CONFIG_SYS_DDRCMD_NOP,
288 CONFIG_SYS_DDRCMD_NOP,
289 /*
290 * item 17, auto refresh (i.e. refresh with CKE held high);
291 * item 18, tRFC (70ns)
292 */
293 CONFIG_SYS_DDRCMD_RFSH,
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 CONFIG_SYS_DDRCMD_NOP,
301 CONFIG_SYS_DDRCMD_NOP,
302 /* item 19, optional, unassert DLL reset; item 20, tMRD (20ns) */
303 CONFIG_SYS_MICRON_BMODE | CONFIG_SYS_MICRON_BMODE_PARAM,
304 CONFIG_SYS_DDRCMD_NOP,
305 /*
306 * item 21, "actually done", but make sure 200 DRAM clock cycles
307 * have passed after DLL reset before READ requests are issued
308 * (200 cycles at 160MHz -> 1.25 usec)
309 */
310 /* EMPTY, optional, we don't do it */
311};
312
313phys_size_t initdram(int board_type)
314{
315 return fixed_sdram(NULL, sdram_init_seq, ARRAY_SIZE(sdram_init_seq));
316}
317
318int misc_init_r(void)
319{
320 u32 keys;
321 char *s;
322 int want_recovery;
323
324 /* we use bus I2C-0 for the on-board eeprom */
325 i2c_set_bus_num(0);
326
327 /* setup GPIO directions and initial values */
328 gpio_configure();
329
330 /*
Gerhard Sittig7214cf12013-06-05 14:51:06 +0200331 * enforce the start of the recovery system when
Anatolij Gustschind6398902013-02-08 00:03:48 +0000332 * - the appropriate keys were pressed
Anatolij Gustschind6398902013-02-08 00:03:48 +0000333 * - "some" external software told us to
Gerhard Sittig0545c2d2013-06-05 14:51:08 +0200334 * - a previous installation was aborted or has failed
Anatolij Gustschind6398902013-02-08 00:03:48 +0000335 */
336 want_recovery = 0;
337 keys = gpio_querykbd();
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200338 if (gpio_diag)
339 printf("GPIO keyboard status [0x%02X]\n", keys);
Anatolij Gustschind6398902013-02-08 00:03:48 +0000340 if ((keys & GPIOKEY_BITS_RECOVERY) == GPIOKEY_BITS_RECOVERY) {
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200341 printf("detected recovery request (keyboard)\n");
Anatolij Gustschind6398902013-02-08 00:03:48 +0000342 want_recovery = 1;
343 }
Gerhard Sittig0545c2d2013-06-05 14:51:08 +0200344 s = getenv("want_recovery");
345 if ((s != NULL) && (*s != '\0')) {
346 printf("detected recovery request (environment)\n");
347 want_recovery = 1;
348 }
Anatolij Gustschind6398902013-02-08 00:03:48 +0000349 s = getenv("install_in_progress");
350 if ((s != NULL) && (*s != '\0')) {
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200351 printf("previous installation has not completed\n");
Anatolij Gustschind6398902013-02-08 00:03:48 +0000352 want_recovery = 1;
353 }
354 s = getenv("install_failed");
355 if ((s != NULL) && (*s != '\0')) {
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200356 printf("previous installation has failed\n");
Anatolij Gustschind6398902013-02-08 00:03:48 +0000357 want_recovery = 1;
358 }
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200359 if (want_recovery) {
360 printf("enforced start of the recovery system\n");
Anatolij Gustschind6398902013-02-08 00:03:48 +0000361 setenv("bootcmd", "run recovery");
Gerhard Sittig68bf0d42013-06-05 14:51:07 +0200362 }
Anatolij Gustschind6398902013-02-08 00:03:48 +0000363
364 /*
365 * boot the recovery system without waiting; boot the
366 * production system without waiting by default, only
367 * insert a pause (to provide a chance to get a prompt)
368 * when GPIO keys were pressed during power on
369 */
370 if (want_recovery)
371 setenv("bootdelay", "0");
372 else if (!keys)
373 setenv("bootdelay", "0");
374 else
375 setenv("bootdelay", "2");
376
377 /* get the ethernet MAC from I2C EEPROM */
378 mac_read_from_eeprom();
379
380 return 0;
381}
382
383/* setup specific IO pad configuration */
384static iopin_t ioregs_init[] = {
385 { /* LPC CS3 */
386 offsetof(struct ioctrl512x, io_control_nfc_ce0), 1,
387 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
388 IO_PIN_FMUX(1) | IO_PIN_DS(2),
389 },
390 { /* LPC CS1 */
391 offsetof(struct ioctrl512x, io_control_lpc_cs1), 1,
392 IO_PIN_OVER_DRVSTR,
393 IO_PIN_DS(2),
394 },
395 { /* LPC CS2 */
396 offsetof(struct ioctrl512x, io_control_lpc_cs2), 1,
397 IO_PIN_OVER_DRVSTR,
398 IO_PIN_DS(2),
399 },
400 { /* LPC CS4, CS5 */
401 offsetof(struct ioctrl512x, io_control_pata_ce1), 2,
402 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
403 IO_PIN_FMUX(1) | IO_PIN_DS(2),
404 },
405 { /* SDHC CLK, CMD, D0, D1, D2, D3 */
406 offsetof(struct ioctrl512x, io_control_pata_ior), 6,
407 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
408 IO_PIN_FMUX(1) | IO_PIN_DS(2),
409 },
410 { /* GPIO keyboard */
411 offsetof(struct ioctrl512x, io_control_pci_ad30), 4,
412 IO_PIN_OVER_FMUX,
413 IO_PIN_FMUX(3),
414 },
415 { /* GPIO DN1 PF, LCD power, DN2 PF */
416 offsetof(struct ioctrl512x, io_control_pci_ad26), 3,
417 IO_PIN_OVER_FMUX,
418 IO_PIN_FMUX(3),
419 },
420 { /* GPIO reset AS-i */
421 offsetof(struct ioctrl512x, io_control_pci_ad21), 1,
422 IO_PIN_OVER_FMUX,
423 IO_PIN_FMUX(3),
424 },
425 { /* GPIO reset safety */
426 offsetof(struct ioctrl512x, io_control_pci_ad19), 1,
427 IO_PIN_OVER_FMUX,
428 IO_PIN_FMUX(3),
429 },
430 { /* GPIO reset netX */
431 offsetof(struct ioctrl512x, io_control_pci_ad16), 1,
432 IO_PIN_OVER_FMUX,
433 IO_PIN_FMUX(3),
434 },
435 { /* GPIO ma2 en */
436 offsetof(struct ioctrl512x, io_control_pci_ad15), 1,
437 IO_PIN_OVER_FMUX,
438 IO_PIN_FMUX(3),
439 },
440 { /* GPIO SD CD, SD WP */
441 offsetof(struct ioctrl512x, io_control_pci_ad08), 2,
442 IO_PIN_OVER_FMUX,
443 IO_PIN_FMUX(3),
444 },
445 { /* FEC RX DV */
446 offsetof(struct ioctrl512x, io_control_pci_ad06), 1,
447 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
448 IO_PIN_FMUX(2) | IO_PIN_DS(2),
449 },
450 { /* GPIO AS-i prog, AS-i done, LCD backlight */
451 offsetof(struct ioctrl512x, io_control_pci_ad05), 3,
452 IO_PIN_OVER_FMUX,
453 IO_PIN_FMUX(3),
454 },
455 { /* GPIO AS-i wdg */
456 offsetof(struct ioctrl512x, io_control_pci_req2), 1,
457 IO_PIN_OVER_FMUX,
458 IO_PIN_FMUX(3),
459 },
460 { /* GPIO safety wdg */
461 offsetof(struct ioctrl512x, io_control_pci_req1), 1,
462 IO_PIN_OVER_FMUX,
463 IO_PIN_FMUX(3),
464 },
465 { /* GPIO netX wdg */
466 offsetof(struct ioctrl512x, io_control_pci_req0), 1,
467 IO_PIN_OVER_FMUX,
468 IO_PIN_FMUX(3),
469 },
470 { /* GPIO IRQ powerfail */
471 offsetof(struct ioctrl512x, io_control_pci_inta), 1,
472 IO_PIN_OVER_FMUX,
473 IO_PIN_FMUX(3),
474 },
475 { /* GPIO AS-i PWRD */
476 offsetof(struct ioctrl512x, io_control_pci_frame), 1,
477 IO_PIN_OVER_FMUX,
478 IO_PIN_FMUX(3),
479 },
480 { /* GPIO LED0, LED1 */
481 offsetof(struct ioctrl512x, io_control_pci_idsel), 2,
482 IO_PIN_OVER_FMUX,
483 IO_PIN_FMUX(3),
484 },
485 { /* GPIO IRQ AS-i 1, IRQ AS-i 2, IRQ safety */
486 offsetof(struct ioctrl512x, io_control_pci_irdy), 3,
487 IO_PIN_OVER_FMUX,
488 IO_PIN_FMUX(3),
489 },
490 { /* DIU clk */
491 offsetof(struct ioctrl512x, io_control_spdif_txclk), 1,
492 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
493 IO_PIN_FMUX(2) | IO_PIN_DS(2),
494 },
495 { /* FEC TX ER, CRS */
496 offsetof(struct ioctrl512x, io_control_spdif_tx), 2,
497 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
498 IO_PIN_FMUX(1) | IO_PIN_DS(2),
499 },
500 { /* GPIO/GPT */ /* to *NOT* have the EXT IRQ0 float */
501 offsetof(struct ioctrl512x, io_control_irq0), 1,
502 IO_PIN_OVER_FMUX,
503 IO_PIN_FMUX(3),
504 },
505 { /*
506 * FEC col, tx en, tx clk, txd 0-3, mdc, rx er,
507 * rdx 3-0, mdio, rx clk
508 */
509 offsetof(struct ioctrl512x, io_control_psc0_0), 15,
510 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
511 IO_PIN_FMUX(1) | IO_PIN_DS(2),
512 },
513 /* optional: make sure PSC3 remains the serial console */
514 { /* LPC CS6 */
515 offsetof(struct ioctrl512x, io_control_psc3_4), 1,
516 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
517 IO_PIN_FMUX(1) | IO_PIN_DS(2),
518 },
519 /* make sure PSC4 remains available for SPI,
520 *BUT* PSC4_1 is a GPIO kind of SS! */
521 { /* enforce drive strength on the SPI pin */
522 offsetof(struct ioctrl512x, io_control_psc4_0), 5,
523 IO_PIN_OVER_DRVSTR,
524 IO_PIN_DS(2),
525 },
526 {
527 offsetof(struct ioctrl512x, io_control_psc4_1), 1,
528 IO_PIN_OVER_FMUX,
529 IO_PIN_FMUX(3),
530 },
531 /* optional: make sure PSC5 remains available for SPI */
532 { /* enforce drive strength on the SPI pin */
533 offsetof(struct ioctrl512x, io_control_psc5_0), 5,
534 IO_PIN_OVER_DRVSTR,
535 IO_PIN_DS(1),
536 },
537 { /* LPC TSIZ1 */
538 offsetof(struct ioctrl512x, io_control_psc6_0), 1,
539 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
540 IO_PIN_FMUX(1) | IO_PIN_DS(2),
541 },
542 { /* DIU hsync */
543 offsetof(struct ioctrl512x, io_control_psc6_1), 1,
544 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
545 IO_PIN_FMUX(2) | IO_PIN_DS(1),
546 },
547 { /* DIU vsync */
548 offsetof(struct ioctrl512x, io_control_psc6_4), 1,
549 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
550 IO_PIN_FMUX(2) | IO_PIN_DS(1),
551 },
552 { /* PSC7, part of DIU RGB */
553 offsetof(struct ioctrl512x, io_control_psc7_0), 2,
554 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
555 IO_PIN_FMUX(2) | IO_PIN_DS(1),
556 },
557 { /* PSC7, safety UART */
558 offsetof(struct ioctrl512x, io_control_psc7_2), 2,
559 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
560 IO_PIN_FMUX(0) | IO_PIN_DS(1),
561 },
562 { /* DIU (part of) RGB[] */
563 offsetof(struct ioctrl512x, io_control_psc8_3), 16,
564 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
565 IO_PIN_FMUX(2) | IO_PIN_DS(1),
566 },
567 { /* DIU data enable */
568 offsetof(struct ioctrl512x, io_control_psc11_4), 1,
569 IO_PIN_OVER_FMUX | IO_PIN_OVER_DRVSTR,
570 IO_PIN_FMUX(2) | IO_PIN_DS(1),
571 },
572 /* reduce LPB drive strength for improved EMI */
573 { /* LPC OE, LPC RW */
574 offsetof(struct ioctrl512x, io_control_lpc_oe), 2,
575 IO_PIN_OVER_DRVSTR,
576 IO_PIN_DS(2),
577 },
578 { /* LPC AX03 through LPC AD00 */
579 offsetof(struct ioctrl512x, io_control_lpc_ax03), 36,
580 IO_PIN_OVER_DRVSTR,
581 IO_PIN_DS(2),
582 },
583 { /* LPC CS5 */
584 offsetof(struct ioctrl512x, io_control_pata_ce2), 1,
585 IO_PIN_OVER_DRVSTR,
586 IO_PIN_DS(2),
587 },
588 { /* SDHC CLK */
589 offsetof(struct ioctrl512x, io_control_nfc_wp), 1,
590 IO_PIN_OVER_DRVSTR,
591 IO_PIN_DS(2),
592 },
593 { /* SDHC DATA */
594 offsetof(struct ioctrl512x, io_control_nfc_ale), 4,
595 IO_PIN_OVER_DRVSTR,
596 IO_PIN_DS(2),
597 },
598};
599
600int checkboard(void)
601{
602 puts("Board: ifm AC14xx\n");
603
604 /* initialize function mux & slew rate IO inter alia on IO Pins */
605 iopin_initialize_bits(ioregs_init, ARRAY_SIZE(ioregs_init));
606
607 return 0;
608}
609
610#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
611void ft_board_setup(void *blob, bd_t *bd)
612{
613 ft_cpu_setup(blob, bd);
614}
615#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */