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Heiko Schocherf7264c32011-11-29 02:33:47 +00001/*
2 * (C) Copyright 2011
3 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
4 *
5 * Based on:
6 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
7 *
8 * Based on da830evm.c. Original Copyrights follow:
9 *
10 * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
11 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
12 *
Wolfgang Denk1a459662013-07-08 09:37:19 +020013 * SPDX-License-Identifier: GPL-2.0+
Heiko Schocherf7264c32011-11-29 02:33:47 +000014 */
15
16#include <common.h>
17#include <command.h>
18#include <environment.h>
19#include <hwconfig.h>
20#include <i2c.h>
21#include <malloc.h>
22#include <miiphy.h>
23#include <mmc.h>
24#include <net.h>
25#include <netdev.h>
Heiko Schocher14b9f162012-05-14 20:24:14 +000026#include <spi.h>
27#include <linux/ctype.h>
Heiko Schocherf7264c32011-11-29 02:33:47 +000028#include <asm/gpio.h>
29#include <asm/io.h>
30#include <asm/arch/da850_lowlevel.h>
31#include <asm/arch/davinci_misc.h>
Khoronzhuk, Ivan3e01ed02014-06-07 04:22:52 +030032#include <asm/ti-common/davinci_nand.h>
Heiko Schocherf7264c32011-11-29 02:33:47 +000033#include <asm/arch/emac_defs.h>
34#include <asm/arch/gpio.h>
35#include <asm/arch/pinmux_defs.h>
36#include <asm/arch/hardware.h>
37#include <asm/arch/sdmmc_defs.h>
38#include <asm/arch/timer_defs.h>
Tom Rini155d4242013-08-28 09:00:28 -040039#include <asm/davinci_rtc.h>
Heiko Schocherf7264c32011-11-29 02:33:47 +000040
41DECLARE_GLOBAL_DATA_PTR;
42
Sughosh Ganu6b873dc2012-02-02 00:44:41 +000043const struct lpsc_resource lpsc[] = {
Heiko Schocherf7264c32011-11-29 02:33:47 +000044 { DAVINCI_LPSC_AEMIF },
45 { DAVINCI_LPSC_SPI1 },
46 { DAVINCI_LPSC_ARM_RAM_ROM },
47 { DAVINCI_LPSC_UART0 },
48 { DAVINCI_LPSC_EMAC },
49 { DAVINCI_LPSC_UART0 },
50 { DAVINCI_LPSC_GPIO },
51 { DAVINCI_LPSC_DDR_EMIF },
52 { DAVINCI_LPSC_UART1 },
53 { DAVINCI_LPSC_UART2 },
54 { DAVINCI_LPSC_MMC_SD1 },
55 { DAVINCI_LPSC_USB20 },
56 { DAVINCI_LPSC_USB11 },
57};
58
Sughosh Ganu6b873dc2012-02-02 00:44:41 +000059const int lpsc_size = ARRAY_SIZE(lpsc);
60
Heiko Schocherf7264c32011-11-29 02:33:47 +000061static const struct pinmux_config enbw_pins[] = {
62 { pinmux(0), 8, 0 },
63 { pinmux(0), 8, 1 },
64 { pinmux(0), 8, 2 },
65 { pinmux(0), 8, 3 },
66 { pinmux(0), 8, 4 },
67 { pinmux(0), 8, 5 },
68 { pinmux(1), 4, 0 },
69 { pinmux(1), 8, 1 },
70 { pinmux(1), 8, 2 },
71 { pinmux(1), 8, 3 },
72 { pinmux(1), 8, 4 },
73 { pinmux(1), 8, 5 },
74 { pinmux(1), 8, 6 },
75 { pinmux(1), 4, 7 },
76 { pinmux(2), 8, 0 },
77 { pinmux(5), 1, 0 },
78 { pinmux(5), 1, 3 },
79 { pinmux(5), 1, 7 },
Heiko Schocher14b9f162012-05-14 20:24:14 +000080 { pinmux(5), 1, 5 },
81 { pinmux(5), 1, 4 },
82 { pinmux(5), 1, 3 },
83 { pinmux(5), 1, 2 },
84 { pinmux(5), 1, 1 },
85 { pinmux(5), 1, 0 },
86 { pinmux(6), 8, 0 },
87 { pinmux(6), 8, 1 },
Heiko Schocherf7264c32011-11-29 02:33:47 +000088 { pinmux(6), 8, 2 },
89 { pinmux(6), 8, 3 },
Heiko Schocher14b9f162012-05-14 20:24:14 +000090 { pinmux(6), 8, 4 },
Heiko Schocherf7264c32011-11-29 02:33:47 +000091 { pinmux(6), 8, 5 },
92 { pinmux(6), 1, 7 },
93 { pinmux(7), 8, 2 },
94 { pinmux(7), 1, 3 },
Heiko Schocher14b9f162012-05-14 20:24:14 +000095 { pinmux(7), 8, 6 },
Heiko Schocherf7264c32011-11-29 02:33:47 +000096 { pinmux(7), 1, 7 },
97 { pinmux(13), 8, 2 },
98 { pinmux(13), 8, 3 },
99 { pinmux(13), 8, 4 },
100 { pinmux(13), 8, 5 },
101 { pinmux(13), 8, 6 },
102 { pinmux(13), 8, 7 },
103 { pinmux(14), 8, 0 },
104 { pinmux(14), 8, 1 },
105 { pinmux(16), 8, 1 },
106 { pinmux(16), 8, 2 },
107 { pinmux(16), 8, 3 },
108 { pinmux(16), 8, 4 },
109 { pinmux(16), 8, 5 },
110 { pinmux(16), 8, 6 },
111 { pinmux(16), 8, 7 },
112 { pinmux(17), 1, 0 },
113 { pinmux(17), 1, 1 },
114 { pinmux(17), 1, 2 },
115 { pinmux(17), 8, 3 },
116 { pinmux(17), 8, 4 },
117 { pinmux(17), 8, 5 },
118 { pinmux(17), 8, 6 },
119 { pinmux(17), 8, 7 },
120 { pinmux(18), 8, 0 },
121 { pinmux(18), 8, 1 },
122 { pinmux(18), 2, 2 },
123 { pinmux(18), 2, 3 },
124 { pinmux(18), 2, 4 },
125 { pinmux(18), 8, 6 },
126 { pinmux(18), 8, 7 },
127 { pinmux(19), 8, 0 },
128 { pinmux(19), 2, 1 },
129 { pinmux(19), 2, 2 },
130 { pinmux(19), 2, 3 },
131 { pinmux(19), 2, 4 },
132 { pinmux(19), 8, 5 },
133 { pinmux(19), 8, 6 },
134};
135
136const struct pinmux_resource pinmuxes[] = {
137 PINMUX_ITEM(emac_pins_mii),
138 PINMUX_ITEM(emac_pins_mdio),
139 PINMUX_ITEM(i2c0_pins),
140 PINMUX_ITEM(emifa_pins_cs2),
141 PINMUX_ITEM(emifa_pins_cs3),
142 PINMUX_ITEM(emifa_pins_cs4),
143 PINMUX_ITEM(emifa_pins_nand),
144 PINMUX_ITEM(emifa_pins_nor),
145 PINMUX_ITEM(spi1_pins_base),
146 PINMUX_ITEM(spi1_pins_scs0),
147 PINMUX_ITEM(uart1_pins_txrx),
148 PINMUX_ITEM(uart2_pins_txrx),
149 PINMUX_ITEM(uart2_pins_rtscts),
150 PINMUX_ITEM(enbw_pins),
151};
152
153const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
154
155struct gpio_config {
156 char name[GPIO_NAME_SIZE];
157 unsigned char bank;
158 unsigned char gpio;
159 unsigned char out;
160 unsigned char value;
161};
162
Heiko Schocher14b9f162012-05-14 20:24:14 +0000163static const struct gpio_config enbw_gpio_config_hut[] = {
164 { "RS485 enable", 8, 11, 1, 0 },
165 { "RS485 iso", 8, 10, 1, 1 },
166 { "W2HUT RS485 Rx ena", 8, 9, 1, 0 },
167 { "W2HUT RS485 iso", 8, 8, 1, 1 },
168};
169
170static const struct gpio_config enbw_gpio_config_w[] = {
Heiko Schocherf7264c32011-11-29 02:33:47 +0000171 { "RS485 enable", 8, 11, 1, 0 },
172 { "RS485 iso", 8, 10, 1, 0 },
173 { "W2HUT RS485 Rx ena", 8, 9, 1, 0 },
174 { "W2HUT RS485 iso", 8, 8, 1, 0 },
Heiko Schocher14b9f162012-05-14 20:24:14 +0000175};
176
177static const struct gpio_config enbw_gpio_config[] = {
Heiko Schocherf7264c32011-11-29 02:33:47 +0000178 { "LAN reset", 7, 15, 1, 1 },
179 { "ena 11V PLC", 7, 14, 1, 0 },
180 { "ena 1.5V PLC", 7, 13, 1, 0 },
181 { "disable VBUS", 7, 12, 1, 1 },
Heiko Schocher14b9f162012-05-14 20:24:14 +0000182 { "PLC reset", 6, 13, 1, 0 },
Heiko Schocherf7264c32011-11-29 02:33:47 +0000183 { "LCM RS", 6, 12, 1, 0 },
184 { "LCM R/W", 6, 11, 1, 0 },
185 { "PLC pairing", 6, 10, 1, 1 },
186 { "PLC MDIO CLK", 6, 9, 1, 0 },
187 { "HK218", 6, 8, 1, 0 },
188 { "HK218 Rx", 6, 1, 1, 1 },
Heiko Schocher14b9f162012-05-14 20:24:14 +0000189 { "TPM reset", 6, 0, 1, 0 },
190 { "Board-Type", 3, 9, 0, 0 },
191 { "HW-ID0", 2, 7, 0, 0 },
192 { "HW-ID1", 2, 6, 0, 0 },
193 { "HW-ID2", 2, 3, 0, 0 },
Heiko Schocherf7264c32011-11-29 02:33:47 +0000194 { "PV-IF RxD ena", 0, 15, 1, 1 },
195 { "LED1", 1, 15, 1, 1 },
196 { "LED2", 0, 1, 1, 1 },
197 { "LED3", 0, 2, 1, 1 },
198 { "LED4", 0, 3, 1, 1 },
199 { "LED5", 0, 4, 1, 1 },
200 { "LED6", 0, 5, 1, 0 },
201 { "LED7", 0, 6, 1, 0 },
202 { "LED8", 0, 14, 1, 0 },
203 { "USER1", 0, 12, 0, 0 },
204 { "USER2", 0, 13, 0, 0 },
205};
206
207#define PHY_POWER 0x0800
208
209static void enbw_cmc_switch(int port, int on)
210{
211 const char *devname;
212 unsigned char phyaddr = 3;
213 unsigned char reg = 0;
214 unsigned short data;
215
216 if (port == 1)
217 phyaddr = 2;
218
219 devname = miiphy_get_current_dev();
220 if (!devname) {
221 printf("Error: no mii device\n");
222 return;
223 }
224 if (miiphy_read(devname, phyaddr, reg, &data) != 0) {
225 printf("Error reading from the PHY addr=%02x reg=%02x\n",
226 phyaddr, reg);
227 return;
228 }
229
230 if (on)
231 data &= ~PHY_POWER;
232 else
233 data |= PHY_POWER;
234
235 if (miiphy_write(devname, phyaddr, reg, data) != 0) {
236 printf("Error writing to the PHY addr=%02x reg=%02x\n",
237 phyaddr, reg);
238 return;
239 }
240}
241
Heiko Schocher14b9f162012-05-14 20:24:14 +0000242static int enbw_cmc_init_gpio(const struct gpio_config *conf, int sz)
Heiko Schocherf7264c32011-11-29 02:33:47 +0000243{
244 int i, ret;
245
Heiko Schocher14b9f162012-05-14 20:24:14 +0000246 for (i = 0; i < sz; i++) {
247 int gpio = conf[i].bank * 16 +
248 conf[i].gpio;
249
250 ret = gpio_request(gpio, conf[i].name);
251 if (ret) {
252 printf("%s: Could not get %s gpio\n", __func__,
253 conf[i].name);
254 return ret;
255 }
256
257 if (conf[i].out)
258 gpio_direction_output(gpio,
259 conf[i].value);
260 else
261 gpio_direction_input(gpio);
262 }
263
264 return 0;
265}
266
267int board_init(void)
268{
269 int board_type, hw_id;
270
Heiko Schocherf7264c32011-11-29 02:33:47 +0000271#ifndef CONFIG_USE_IRQ
272 irq_init();
273#endif
274 /* address of boot parameters, not used as booting with DTT */
275 gd->bd->bi_boot_params = 0;
276
Heiko Schocher14b9f162012-05-14 20:24:14 +0000277 enbw_cmc_init_gpio(enbw_gpio_config, ARRAY_SIZE(enbw_gpio_config));
Heiko Schocherf7264c32011-11-29 02:33:47 +0000278
Heiko Schocher14b9f162012-05-14 20:24:14 +0000279 /* detect HW version */
280 board_type = gpio_get_value(CONFIG_ENBW_CMC_BOARD_TYPE);
281 hw_id = gpio_get_value(CONFIG_ENBW_CMC_HW_ID_BIT0) +
282 (gpio_get_value(CONFIG_ENBW_CMC_HW_ID_BIT1) << 1) +
283 (gpio_get_value(CONFIG_ENBW_CMC_HW_ID_BIT2) << 2);
284 printf("BOARD: CMC-%s hw id: %d\n", (board_type ? "w2" : "hut"),
285 hw_id);
286 if (board_type)
287 enbw_cmc_init_gpio(enbw_gpio_config_w,
288 ARRAY_SIZE(enbw_gpio_config_w));
289 else
290 enbw_cmc_init_gpio(enbw_gpio_config_hut,
291 ARRAY_SIZE(enbw_gpio_config_hut));
Heiko Schocherf7264c32011-11-29 02:33:47 +0000292
293 /* setup the SUSPSRC for ARM to control emulation suspend */
294 clrbits_le32(&davinci_syscfg_regs->suspsrc,
295 (DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
296 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
297 DAVINCI_SYSCFG_SUSPSRC_UART2));
298
299 return 0;
300}
301
302#ifdef CONFIG_DRIVER_TI_EMAC
Heiko Schocher14b9f162012-05-14 20:24:14 +0000303
304#define KSZ_CMD_READ 0x03
305#define KSZ_CMD_WRITE 0x02
306#define KSZ_ID 0x95
307
308static int enbw_cmc_switch_read(struct spi_slave *spi, u8 reg, u8 *val)
309{
310 unsigned long flags = SPI_XFER_BEGIN;
311 int ret;
312 int cmd_len;
313 u8 cmd[2];
314
315 cmd[0] = KSZ_CMD_READ;
316 cmd[1] = reg;
317 cmd_len = 2;
318
319 ret = spi_xfer(spi, cmd_len * 8, cmd, NULL, flags);
320 if (ret) {
321 debug("Failed to send command (%zu bytes): %d\n",
322 cmd_len, ret);
323 return -EINVAL;
324 }
325 flags |= SPI_XFER_END;
326 *val = 0;
327 cmd_len = 1;
328 ret = spi_xfer(spi, cmd_len * 8, NULL, val, flags);
329 if (ret) {
330 debug("Failed to read (%zu bytes): %d\n",
331 cmd_len, ret);
332 return -EINVAL;
333 }
334
335 return 0;
336}
337
338static int enbw_cmc_switch_read_ident(struct spi_slave *spi)
339{
340 int ret;
341 u8 val;
342
343 ret = enbw_cmc_switch_read(spi, 0, &val);
344 if (ret) {
345 debug("Failed to read\n");
346 return -EINVAL;
347 }
348
349 if (val != KSZ_ID)
350 return -EINVAL;
351
352 return 0;
353}
354
355static int enbw_cmc_switch_write(struct spi_slave *spi, unsigned long reg,
356 unsigned long val)
357{
358 unsigned long flags = SPI_XFER_BEGIN;
359 int ret;
360 int cmd_len;
361 u8 cmd[3];
362
363 cmd[0] = KSZ_CMD_WRITE;
364 cmd[1] = reg;
365 cmd[2] = val;
366 cmd_len = 3;
367 flags |= SPI_XFER_END;
368
369 ret = spi_xfer(spi, cmd_len * 8, cmd, NULL, flags);
370 if (ret) {
371 debug("Failed to send command (%zu bytes): %d\n",
372 cmd_len, ret);
373 return -EINVAL;
374 }
375
376 udelay(1000);
377 ret = enbw_cmc_switch_read(spi, reg, &cmd[0]);
378 if (ret) {
379 debug("Failed to read\n");
380 return -EINVAL;
381 }
382 if (val != cmd[0])
383 debug("warning: reg: %lx va: %x soll: %lx\n",
384 reg, cmd[0], val);
385
386 return 0;
387}
388
389static int enbw_cmc_eof(unsigned char *ptr)
390{
391 if (*ptr == 0xff)
392 return 1;
393
394 return 0;
395}
396
397static char *enbw_cmc_getnewline(char *ptr)
398{
399 while (*ptr != 0x0a) {
400 ptr++;
401 if (enbw_cmc_eof((unsigned char *)ptr))
402 return NULL;
403 }
404
405 ptr++;
406 return ptr;
407}
408
409static char *enbw_cmc_getvalue(char *ptr, int *value)
410{
411 int end = 0;
412
413 *value = -EINVAL;
414
415 if (!isxdigit(*ptr))
416 end = 1;
417
418 while (end) {
419 if ((*ptr == '#') || (*ptr == ';')) {
420 ptr = enbw_cmc_getnewline(ptr);
421 return ptr;
422 }
423 if (ptr != NULL) {
424 if (isxdigit(*ptr)) {
425 end = 0;
426 } else if (*ptr == 0x0a) {
427 ptr++;
428 return ptr;
429 } else {
430 ptr++;
431 if (enbw_cmc_eof((unsigned char *)ptr))
432 return NULL;
433 }
434 } else {
435 return NULL;
436 }
437 }
438 *value = (int)simple_strtoul((const char *)ptr, &ptr, 16);
439 ptr++;
440 return ptr;
441}
442
Heiko Schocher1bb09462012-08-13 23:51:04 +0000443static struct spi_slave *enbw_cmc_init_spi(void)
Heiko Schocher14b9f162012-05-14 20:24:14 +0000444{
445 struct spi_slave *spi;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000446 int ret;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000447
Heiko Schocher1bb09462012-08-13 23:51:04 +0000448 spi = spi_setup_slave(0, 0, 1000000, 0);
Heiko Schocher14b9f162012-05-14 20:24:14 +0000449 if (!spi) {
450 printf("Failed to set up slave\n");
Heiko Schocher1bb09462012-08-13 23:51:04 +0000451 return NULL;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000452 }
453
454 ret = spi_claim_bus(spi);
455 if (ret) {
456 debug("Failed to claim SPI bus: %d\n", ret);
457 goto err_claim_bus;
458 }
459
460 ret = enbw_cmc_switch_read_ident(spi);
461 if (ret)
Heiko Schocher1bb09462012-08-13 23:51:04 +0000462 goto err_read;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000463
Heiko Schocher1bb09462012-08-13 23:51:04 +0000464 return spi;
465err_read:
466 spi_release_bus(spi);
467err_claim_bus:
468 spi_free_slave(spi);
469 return NULL;
470}
471
472static int enbw_cmc_config_switch(unsigned long addr)
473{
474 struct spi_slave *spi;
475 char *ptr = (char *)addr;
476 int value, reg;
477 int ret = 0;
478
479 debug("configure switch with file on addr: 0x%lx\n", addr);
480
481 spi = enbw_cmc_init_spi();
482 if (!spi)
483 return -EINVAL;
484
Heiko Schocher14b9f162012-05-14 20:24:14 +0000485 while (ptr != NULL) {
486 ptr = enbw_cmc_getvalue(ptr, &reg);
487 if (ptr != NULL) {
488 ptr = enbw_cmc_getvalue(ptr, &value);
489 if ((ptr != NULL) && (value >= 0))
Heiko Schocher1bb09462012-08-13 23:51:04 +0000490 if (enbw_cmc_switch_write(spi, reg, value)) {
491 /* error writing to switch */
492 ptr = NULL;
493 ret = -EINVAL;
494 }
Heiko Schocher14b9f162012-05-14 20:24:14 +0000495 }
496 }
Heiko Schocher14b9f162012-05-14 20:24:14 +0000497
Heiko Schocher14b9f162012-05-14 20:24:14 +0000498 spi_release_bus(spi);
Heiko Schocher14b9f162012-05-14 20:24:14 +0000499 spi_free_slave(spi);
Heiko Schocher1bb09462012-08-13 23:51:04 +0000500 return ret;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000501}
502
503static int do_switch(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
504{
505 unsigned long addr;
506
507 if (argc < 2)
508 return cmd_usage(cmdtp);
509
510 addr = simple_strtoul(argv[1], NULL, 16);
511 enbw_cmc_config_switch(addr);
512
513 return 0;
514}
515
516U_BOOT_CMD(switch, 3, 1, do_switch,
517 "switch addr",
518 "[addr]"
519);
520
Heiko Schocherf7264c32011-11-29 02:33:47 +0000521/*
522 * Initializes on-board ethernet controllers.
523 */
524int board_eth_init(bd_t *bis)
525{
Heiko Schocher1bb09462012-08-13 23:51:04 +0000526 struct spi_slave *spi;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000527 const char *s;
Heiko Schocher1bb09462012-08-13 23:51:04 +0000528 size_t len = 0;
529 int config = 1;
Heiko Schocher14b9f162012-05-14 20:24:14 +0000530
Heiko Schocherf7264c32011-11-29 02:33:47 +0000531 davinci_emac_mii_mode_sel(0);
Heiko Schocher14b9f162012-05-14 20:24:14 +0000532
533 /* send a config file to the switch */
534 s = hwconfig_subarg("switch", "config", &len);
535 if (len) {
536 unsigned long addr = simple_strtoul(s, NULL, 16);
537
Heiko Schocher1bb09462012-08-13 23:51:04 +0000538 config = enbw_cmc_config_switch(addr);
Heiko Schocher14b9f162012-05-14 20:24:14 +0000539 }
Heiko Schocherf7264c32011-11-29 02:33:47 +0000540
Heiko Schocher1bb09462012-08-13 23:51:04 +0000541 if (config) {
542 /*
543 * no valid config file -> do we have some args in
544 * hwconfig ?
545 */
546 if ((hwconfig_subarg("switch", "lan", &len)) ||
547 (hwconfig_subarg("switch", "lmn", &len))) {
548 /* If so start switch */
549 spi = enbw_cmc_init_spi();
550 if (spi) {
551 if (enbw_cmc_switch_write(spi, 1, 0))
552 config = 0;
553 udelay(10000);
554 if (enbw_cmc_switch_write(spi, 1, 1))
555 config = 0;
556 spi_release_bus(spi);
557 spi_free_slave(spi);
558 }
559 } else {
560 config = 0;
561 }
562 }
Heiko Schocherf7264c32011-11-29 02:33:47 +0000563 if (!davinci_emac_initialize()) {
564 printf("Error: Ethernet init failed!\n");
565 return -1;
566 }
567
Heiko Schocher1bb09462012-08-13 23:51:04 +0000568 if (config) {
569 if (hwconfig_subarg_cmp("switch", "lan", "on"))
570 /* Switch port lan on */
571 enbw_cmc_switch(1, 1);
572 else
573 enbw_cmc_switch(1, 0);
Heiko Schocherf7264c32011-11-29 02:33:47 +0000574
Heiko Schocher1bb09462012-08-13 23:51:04 +0000575 if (hwconfig_subarg_cmp("switch", "lmn", "on"))
576 /* Switch port pwl on */
577 enbw_cmc_switch(2, 1);
578 else
579 enbw_cmc_switch(2, 0);
580 }
Heiko Schocherf7264c32011-11-29 02:33:47 +0000581
582 return 0;
583}
584#endif /* CONFIG_DRIVER_TI_EMAC */
585
586#ifdef CONFIG_PREBOOT
587static uchar kbd_magic_prefix[] = "key_magic_";
588static uchar kbd_command_prefix[] = "key_cmd_";
589
590struct kbd_data_t {
591 char s1;
592};
593
594struct kbd_data_t *get_keys(struct kbd_data_t *kbd_data)
595{
596 /* read SW1 + SW2 */
597 kbd_data->s1 = gpio_get_value(12) +
598 (gpio_get_value(13) << 1);
599 return kbd_data;
600}
601
602static int compare_magic(const struct kbd_data_t *kbd_data, char *str)
603{
604 char s1 = str[0];
605
606 if (s1 >= '0' && s1 <= '9')
607 s1 -= '0';
608 else if (s1 >= 'a' && s1 <= 'f')
609 s1 = s1 - 'a' + 10;
610 else if (s1 >= 'A' && s1 <= 'F')
611 s1 = s1 - 'A' + 10;
612 else
613 return -1;
614
615 if (s1 != kbd_data->s1)
616 return -1;
617
618 return 0;
619}
620
621static char *key_match(const struct kbd_data_t *kbd_data)
622{
623 char magic[sizeof(kbd_magic_prefix) + 1];
624 char *suffix;
625 char *kbd_magic_keys;
626
627 /*
628 * The following string defines the characters that can be appended
629 * to "key_magic" to form the names of environment variables that
630 * hold "magic" key codes, i. e. such key codes that can cause
631 * pre-boot actions. If the string is empty (""), then only
632 * "key_magic" is checked (old behaviour); the string "125" causes
633 * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
634 */
635 kbd_magic_keys = getenv("magic_keys");
636 if (kbd_magic_keys == NULL)
637 kbd_magic_keys = "";
638
639 /*
640 * loop over all magic keys;
641 * use '\0' suffix in case of empty string
642 */
643 for (suffix = kbd_magic_keys; *suffix ||
644 suffix == kbd_magic_keys; ++suffix) {
645 sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
646
647 if (compare_magic(kbd_data, getenv(magic)) == 0) {
648 char cmd_name[sizeof(kbd_command_prefix) + 1];
649 char *cmd;
650
651 sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
652 cmd = getenv(cmd_name);
653
654 return cmd;
655 }
656 }
657
658 return NULL;
659}
660#endif /* CONFIG_PREBOOT */
661
662int misc_init_r(void)
663{
664 char *s, buf[32];
665#ifdef CONFIG_PREBOOT
666 struct kbd_data_t kbd_data;
667 /* Decode keys */
668 char *str = strdup(key_match(get_keys(&kbd_data)));
669 /* Set or delete definition */
670 setenv("preboot", str);
671 free(str);
672#endif /* CONFIG_PREBOOT */
673
674 /* count all restarts, and save this in an environment var */
675 s = getenv("restartcount");
676
677 if (s)
678 sprintf(buf, "%ld", simple_strtoul(s, NULL, 10) + 1);
679 else
680 strcpy(buf, "1");
681
682 setenv("restartcount", buf);
683 saveenv();
684
685#ifdef CONFIG_HW_WATCHDOG
686 davinci_hw_watchdog_enable();
687#endif
688
689 return 0;
690}
691
692struct cmc_led {
693 char name[20];
694 unsigned char bank;
695 unsigned char gpio;
696};
697
698struct cmc_led led_table[] = {
699 {"led1", 1, 15},
700 {"led2", 0, 1},
701 {"led3", 0, 2},
702 {"led4", 0, 3},
703 {"led5", 0, 4},
704 {"led6", 0, 5},
705 {"led7", 0, 6},
706 {"led8", 0, 14},
707};
708
709static int cmc_get_led_state(struct cmc_led *led)
710{
711 int value;
712 int gpio = led->bank * 16 + led->gpio;
713
714 value = gpio_get_value(gpio);
715
716 return value;
717}
718
719static int cmc_set_led_state(struct cmc_led *led, int state)
720{
721 int gpio = led->bank * 16 + led->gpio;
722
723 gpio_set_value(gpio, state);
724 return 0;
725}
726
727static int do_led(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
728{
729 struct cmc_led *led;
730 int found = 0;
731 int i = 0;
732 int only_print = 0;
733 int len = ARRAY_SIZE(led_table);
734
735 if (argc < 2)
736 return cmd_usage(cmdtp);
737
738 if (argc < 3)
739 only_print = 1;
740
741 led = led_table;
742 while ((!found) && (i < len)) {
743 if (strcmp(argv[1], led->name) == 0) {
744 found = 1;
745 } else {
746 led++;
747 i++;
748 }
749 }
750 if (!found)
751 return cmd_usage(cmdtp);
752
753 if (only_print) {
754 if (cmc_get_led_state(led))
755 printf("on\n");
756 else
757 printf("off\n");
758
759 return 0;
760 }
761 if (strcmp(argv[2], "on") == 0)
762 cmc_set_led_state(led, 1);
763 else
764 cmc_set_led_state(led, 0);
765
766 return 0;
767}
768
769U_BOOT_CMD(led, 3, 1, do_led,
770 "switch on/off board led",
771 "[name] [on/off]"
772);
773
774#ifdef CONFIG_HW_WATCHDOG
775void hw_watchdog_reset(void)
776{
777 davinci_hw_watchdog_reset();
778}
779#endif
780
781#if defined(CONFIG_POST)
782void arch_memory_failure_handle(void)
783{
784 struct davinci_gpio *gpio = davinci_gpio_bank01;
785 int state = 1;
786
787 /*
788 * if memor< failure blink with the LED 1,2 and 3
789 * as we running from flash, we cannot use the gpio
790 * api here, so access the gpio pin direct through
791 * the gpio register.
792 */
793 while (1) {
794 if (state) {
795 clrbits_le32(&gpio->out_data, 0x80000006);
796 state = 0;
797 } else {
798 setbits_le32(&gpio->out_data, 0x80000006);
799 state = 1;
800 }
801 udelay(500);
802 }
803}
804#endif
805
Heiko Schocher14b9f162012-05-14 20:24:14 +0000806ulong post_word_load(void)
807{
808 struct davinci_rtc *reg =
809 (struct davinci_rtc *)CONFIG_SYS_POST_WORD_ADDR;
810
811 return in_be32(&reg->scratch2);
812}
813
814void post_word_store(ulong value)
815{
816 struct davinci_rtc *reg =
817 (struct davinci_rtc *)CONFIG_SYS_POST_WORD_ADDR;
818
819 /*
820 * write RTC kick register to enable write
821 * for RTC Scratch registers. Cratch0 and 1 are
822 * used for bootcount values.
823 */
824 writel(RTC_KICK0R_WE, &reg->kick0r);
825 writel(RTC_KICK1R_WE, &reg->kick1r);
826 out_be32(&reg->scratch2, value);
827}
828
Heiko Schocherf7264c32011-11-29 02:33:47 +0000829void board_gpio_init(void)
830{
831 struct davinci_gpio *gpio = davinci_gpio_bank01;
832
833 /*
Heiko Schocherf7264c32011-11-29 02:33:47 +0000834 * set LED (gpio Interface not usable here)
835 * set LED pins to output and state 0
836 */
837 clrbits_le32(&gpio->dir, 0x8000407e);
838 clrbits_le32(&gpio->out_data, 0x8000407e);
839 /* set LED 1 - 5 to state on */
840 setbits_le32(&gpio->out_data, 0x8000001e);
Heiko Schocher14b9f162012-05-14 20:24:14 +0000841
842 /*
843 * set some gpio pins to low, this is needed early,
844 * so we have no gpio Interface here
845 * gpios:
846 * 8[8] Mode PV select low
847 * 8[9] Debug Rx Enable low
848 * 8[10] Mode Select PV low
849 * 8[11] Counter Interface RS485 Rx-Enable low
850 */
851 gpio = davinci_gpio_bank8;
852 clrbits_le32(&gpio->dir, 0x00000f00);
853 clrbits_le32(&gpio->out_data, 0x0f00);
Heiko Schocherf7264c32011-11-29 02:33:47 +0000854}
855
856int board_late_init(void)
857{
858 cmc_set_led_state(&led_table[4], 0);
859
860 return 0;
861}
862
863void show_boot_progress(int val)
864{
865 switch (val) {
866 case 1:
867 cmc_set_led_state(&led_table[4], 1);
868 break;
869 case 4:
870 cmc_set_led_state(&led_table[4], 0);
871 break;
872 case 15:
873 cmc_set_led_state(&led_table[4], 1);
874 break;
875 }
876}
877
878#ifdef CONFIG_DAVINCI_MMC
879static struct davinci_mmc mmc_sd1 = {
880 .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD1_BASE,
881 .input_clk = 228000000,
882 .host_caps = MMC_MODE_4BIT,
883 .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
884 .version = MMC_CTLR_VERSION_2,
885};
886
887int board_mmc_init(bd_t *bis)
888{
889 mmc_sd1.input_clk = clk_get(DAVINCI_MMC_CLKID);
890 /* Add slot-0 to mmc subsystem */
891 return davinci_mmc_init(bis, &mmc_sd1);
892}
893#endif