blob: 1455953078b8b6b43d6f127cba4ac0afe2415409 [file] [log] [blame]
dzu@denx.de6ca24c62006-04-21 18:30:47 +02001/*
2 * (C) Copyright 2005
3 * Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.de
4 *
5 * (C) Copyright 2005
6 * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27#include <common.h>
28#include <command.h>
29
Wolfgang Denk610cf362006-05-03 01:24:04 +020030/*
dzu@denx.de6ca24c62006-04-21 18:30:47 +020031 * BC3450 specific commands
32 */
Jon Loeligerfcec2eb2007-07-09 18:19:09 -050033#if defined(CONFIG_CMD_BSP)
dzu@denx.de6ca24c62006-04-21 18:30:47 +020034
35#undef DEBUG
36#ifdef DEBUG
37# define dprintf(fmt,args...) printf(fmt, ##args)
38#else
39# define dprintf(fmt,args...)
40#endif
41
Wolfgang Denk610cf362006-05-03 01:24:04 +020042/*
dzu@denx.de6ca24c62006-04-21 18:30:47 +020043 * Definitions for DS1620 chip
44 */
45#define THERM_START_CONVERT 0xee
46#define THERM_RESET 0xaf
47#define THERM_READ_CONFIG 0xac
48#define THERM_READ_TEMP 0xaa
49#define THERM_READ_TL 0xa2
50#define THERM_READ_TH 0xa1
51#define THERM_WRITE_CONFIG 0x0c
52#define THERM_WRITE_TL 0x02
53#define THERM_WRITE_TH 0x01
54
55#define CFG_CPU 2
56#define CFG_1SHOT 1
57#define CFG_STANDALONE 0
58
59struct therm {
Wolfgang Denk610cf362006-05-03 01:24:04 +020060 int hi;
61 int lo;
dzu@denx.de6ca24c62006-04-21 18:30:47 +020062};
63
64/*
65 * SM501 Register
66 */
67#define SM501_GPIO_CTRL_LOW 0x00000008UL /* gpio pins 0..31 */
68#define SM501_GPIO_CTRL_HIGH 0x0000000CUL /* gpio pins 32..63 */
69#define SM501_POWER_MODE0_GATE 0x00000040UL
70#define SM501_POWER_MODE1_GATE 0x00000048UL
71#define POWER_MODE_GATE_GPIO_PWM_I2C 0x00000040UL
72#define SM501_GPIO_DATA_LOW 0x00010000UL
73#define SM501_GPIO_DATA_HIGH 0x00010004UL
74#define SM501_GPIO_DATA_DIR_LOW 0x00010008UL
75#define SM501_GPIO_DATA_DIR_HIGH 0x0001000CUL
76#define SM501_PANEL_DISPLAY_CONTROL 0x00080000UL
77#define SM501_CRT_DISPLAY_CONTROL 0x00080200UL
78
79/* SM501 CRT Display Control Bits */
80#define SM501_CDC_SEL (1 << 9)
81#define SM501_CDC_TE (1 << 8)
82#define SM501_CDC_E (1 << 2)
83
84/* SM501 Panel Display Control Bits */
85#define SM501_PDC_FPEN (1 << 27)
86#define SM501_PDC_BIAS (1 << 26)
87#define SM501_PDC_DATA (1 << 25)
88#define SM501_PDC_VDDEN (1 << 24)
89
90/* SM501 GPIO Data LOW Bits */
91#define SM501_GPIO24 0x01000000
92#define SM501_GPIO25 0x02000000
93#define SM501_GPIO26 0x04000000
94#define SM501_GPIO27 0x08000000
95#define SM501_GPIO28 0x10000000
96#define SM501_GPIO29 0x20000000
97#define SM501_GPIO30 0x40000000
98#define SM501_GPIO31 0x80000000
99
100/* SM501 GPIO Data HIGH Bits */
101#define SM501_GPIO46 0x00004000
102#define SM501_GPIO47 0x00008000
103#define SM501_GPIO48 0x00010000
104#define SM501_GPIO49 0x00020000
105#define SM501_GPIO50 0x00040000
106#define SM501_GPIO51 0x00080000
107
108/* BC3450 GPIOs @ SM501 Data LOW */
109#define DIP (SM501_GPIO24 | SM501_GPIO25 | SM501_GPIO26 | SM501_GPIO27)
110#define DS1620_DQ SM501_GPIO29 /* I/O */
111#define DS1620_CLK SM501_GPIO30 /* High active O/P */
112#define DS1620_RES SM501_GPIO31 /* Low active O/P */
113/* BC3450 GPIOs @ SM501 Data HIGH */
114#define BUZZER SM501_GPIO47 /* Low active O/P */
115#define DS1620_TLOW SM501_GPIO48 /* High active I/P */
116#define PWR_OFF SM501_GPIO49 /* Low active O/P */
117#define FP_DATA_TRI SM501_GPIO50 /* High active O/P */
118
119
120/*
121 * Initialise GPIO on SM501
122 *
123 * This function may be called from several other functions.
124 * Yet, the initialisation sequence is executed only the first
125 * time the function is called.
126 */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200127int sm501_gpio_init (void)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200128{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200129 static int init_done = 0;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200130
Wolfgang Denk610cf362006-05-03 01:24:04 +0200131 if (init_done) {
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200132/* dprintf("sm501_gpio_init: nothing to be done.\n"); */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200133 return 1;
134 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200135
Wolfgang Denk610cf362006-05-03 01:24:04 +0200136 /* enable SM501 GPIO control (in both power modes) */
137 *(vu_long *) (SM501_MMIO_BASE + SM501_POWER_MODE0_GATE) |=
138 POWER_MODE_GATE_GPIO_PWM_I2C;
139 *(vu_long *) (SM501_MMIO_BASE + SM501_POWER_MODE1_GATE) |=
140 POWER_MODE_GATE_GPIO_PWM_I2C;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200141
Wolfgang Denk610cf362006-05-03 01:24:04 +0200142 /* set up default O/Ps */
143 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
144 ~(DS1620_RES | DS1620_CLK);
145 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_DQ;
146 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
147 ~(FP_DATA_TRI);
148 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
149 (BUZZER | PWR_OFF);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200150
Wolfgang Denk610cf362006-05-03 01:24:04 +0200151 /* configure directions for SM501 GPIO pins */
152 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_LOW) &= ~(0xFF << 24);
153 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_HIGH) &=
154 ~(0x3F << 14);
155 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &=
156 ~(DIP | DS1620_DQ);
157 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |=
158 (DS1620_RES | DS1620_CLK);
159 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) &=
160 ~DS1620_TLOW;
161 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) |=
162 (PWR_OFF | BUZZER | FP_DATA_TRI);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200163
Wolfgang Denk610cf362006-05-03 01:24:04 +0200164 init_done = 1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200165/* dprintf("sm501_gpio_init: done.\n"); */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200166 return 0;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200167}
168
169
170/*
171 * dip - read Config Inputs
172 *
173 * read and prints the dip switch
174 * and/or external config inputs (4bits) 0...0x0F
175 */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200176int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200177{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200178 vu_long rc = 0;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200179
Wolfgang Denk610cf362006-05-03 01:24:04 +0200180 sm501_gpio_init ();
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200181
Wolfgang Denk610cf362006-05-03 01:24:04 +0200182 /* read dip switch */
183 rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
184 rc = ~rc;
185 rc &= DIP;
186 rc = (int) (rc >> 24);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200187
Wolfgang Denk610cf362006-05-03 01:24:04 +0200188 /* plausibility check */
189 if (rc > 0x0F)
190 return -1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200191
Wolfgang Denk610cf362006-05-03 01:24:04 +0200192 printf ("0x%x\n", rc);
193 return 0;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200194}
195
Wolfgang Denk610cf362006-05-03 01:24:04 +0200196U_BOOT_CMD (dip, 1, 1, cmd_dip,
197 "dip - read dip switch and config inputs\n",
198 "\n"
199 " - prints the state of the dip switch and/or\n"
200 " external configuration inputs as hex value.\n"
201 " - \"Config 1\" is the LSB\n");
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200202
203
204/*
205 * buz - turns Buzzer on/off
206 */
207#ifdef CONFIG_BC3450_BUZZER
Wolfgang Denk610cf362006-05-03 01:24:04 +0200208static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200209{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200210 if (argc != 2) {
211 printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
212 return 1;
213 }
214
215 sm501_gpio_init ();
216
217 if (strncmp (argv[1], "on", 2) == 0) {
218 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
219 ~(BUZZER);
220 return 0;
221 } else if (strncmp (argv[1], "off", 3) == 0) {
222 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
223 BUZZER;
224 return 0;
225 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200226 printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
227 return 1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200228}
229
Wolfgang Denk610cf362006-05-03 01:24:04 +0200230U_BOOT_CMD (buz, 2, 1, cmd_buz,
231 "buz - turns buzzer on/off\n",
232 "\n" "buz <on/off>\n" " - turns the buzzer on or off\n");
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200233#endif /* CONFIG_BC3450_BUZZER */
234
235
236/*
237 * fp - front panel commands
238 */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200239static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200240{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200241 sm501_gpio_init ();
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200242
Wolfgang Denk610cf362006-05-03 01:24:04 +0200243 if (strncmp (argv[1], "on", 2) == 0) {
244 /* turn on VDD first */
245 *(vu_long *) (SM501_MMIO_BASE +
246 SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_VDDEN;
247 udelay (1000);
248 /* then put data on */
249 *(vu_long *) (SM501_MMIO_BASE +
250 SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_DATA;
251 /* wait some time and enable backlight */
252 udelay (1000);
253 *(vu_long *) (SM501_MMIO_BASE +
254 SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_BIAS;
255 udelay (1000);
256 *(vu_long *) (SM501_MMIO_BASE +
257 SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_FPEN;
258 return 0;
259 } else if (strncmp (argv[1], "off", 3) == 0) {
260 /* turn off the backlight first */
261 *(vu_long *) (SM501_MMIO_BASE +
262 SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_FPEN;
263 udelay (1000);
264 *(vu_long *) (SM501_MMIO_BASE +
265 SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_BIAS;
266 udelay (200000);
267 /* wait some time, then remove data */
268 *(vu_long *) (SM501_MMIO_BASE +
269 SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_DATA;
270 udelay (1000);
271 /* and remove VDD last */
272 *(vu_long *) (SM501_MMIO_BASE +
273 SM501_PANEL_DISPLAY_CONTROL) &=
274 ~SM501_PDC_VDDEN;
275 return 0;
276 } else if (strncmp (argv[1], "bl", 2) == 0) {
277 /* turn on/off backlight only */
278 if (strncmp (argv[2], "on", 2) == 0) {
279 *(vu_long *) (SM501_MMIO_BASE +
280 SM501_PANEL_DISPLAY_CONTROL) |=
281 SM501_PDC_BIAS;
282 udelay (1000);
283 *(vu_long *) (SM501_MMIO_BASE +
284 SM501_PANEL_DISPLAY_CONTROL) |=
285 SM501_PDC_FPEN;
286 return 0;
287 } else if (strncmp (argv[2], "off", 3) == 0) {
288 *(vu_long *) (SM501_MMIO_BASE +
289 SM501_PANEL_DISPLAY_CONTROL) &=
290 ~SM501_PDC_FPEN;
291 udelay (1000);
292 *(vu_long *) (SM501_MMIO_BASE +
293 SM501_PANEL_DISPLAY_CONTROL) &=
294 ~SM501_PDC_BIAS;
295 return 0;
296 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200297 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200298#ifdef CONFIG_BC3450_CRT
Wolfgang Denk610cf362006-05-03 01:24:04 +0200299 else if (strncmp (argv[1], "crt", 3) == 0) {
300 /* enables/disables the crt output (debug only) */
301 if (strncmp (argv[2], "on", 2) == 0) {
302 *(vu_long *) (SM501_MMIO_BASE +
303 SM501_CRT_DISPLAY_CONTROL) |=
304 (SM501_CDC_TE | SM501_CDC_E);
305 *(vu_long *) (SM501_MMIO_BASE +
306 SM501_CRT_DISPLAY_CONTROL) &=
307 ~SM501_CDC_SEL;
308 return 0;
309 } else if (strncmp (argv[2], "off", 3) == 0) {
310 *(vu_long *) (SM501_MMIO_BASE +
311 SM501_CRT_DISPLAY_CONTROL) &=
312 ~(SM501_CDC_TE | SM501_CDC_E);
313 *(vu_long *) (SM501_MMIO_BASE +
314 SM501_CRT_DISPLAY_CONTROL) |=
315 SM501_CDC_SEL;
316 return 0;
317 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200318 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200319#endif /* CONFIG_BC3450_CRT */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200320 printf ("Usage:%s\n", cmdtp->help);
321 return 1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200322}
323
Wolfgang Denk610cf362006-05-03 01:24:04 +0200324U_BOOT_CMD (fp, 3, 1, cmd_fp,
325 "fp - front panes access functions\n",
326 "\n"
327 "fp bl <on/off>\n"
328 " - turns the CCFL backlight of the display on/off\n"
329 "fp <on/off>\n" " - turns the whole display on/off\n"
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200330#ifdef CONFIG_BC3450_CRT
Wolfgang Denk610cf362006-05-03 01:24:04 +0200331 "fp crt <on/off>\n"
332 " - enables/disables the crt output (debug only)\n"
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200333#endif /* CONFIG_BC3450_CRT */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200334 );
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200335
336
337/*
338 * temp - DS1620 thermometer
339 */
340/* GERSYS BC3450 specific functions */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200341static inline void bc_ds1620_set_clk (int clk)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200342{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200343 if (clk)
344 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
345 DS1620_CLK;
346 else
347 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
348 ~DS1620_CLK;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200349}
350
Wolfgang Denk610cf362006-05-03 01:24:04 +0200351static inline void bc_ds1620_set_data (int dat)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200352{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200353 if (dat)
354 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
355 DS1620_DQ;
356 else
357 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
358 ~DS1620_DQ;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200359}
360
Wolfgang Denk610cf362006-05-03 01:24:04 +0200361static inline int bc_ds1620_get_data (void)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200362{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200363 vu_long rc;
364
365 rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
366 rc &= DS1620_DQ;
367 if (rc != 0)
368 rc = 1;
369 return (int) rc;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200370}
371
Wolfgang Denk610cf362006-05-03 01:24:04 +0200372static inline void bc_ds1620_set_data_dir (int dir)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200373{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200374 if (dir) /* in */
375 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &= ~DS1620_DQ;
376 else /* out */
377 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |= DS1620_DQ;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200378}
379
Wolfgang Denk610cf362006-05-03 01:24:04 +0200380static inline void bc_ds1620_set_reset (int res)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200381{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200382 if (res)
383 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_RES;
384 else
385 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &= ~DS1620_RES;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200386}
387
388/* hardware independent functions */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200389static void ds1620_send_bits (int nr, int value)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200390{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200391 int i;
392
393 for (i = 0; i < nr; i++) {
394 bc_ds1620_set_data (value & 1);
395 bc_ds1620_set_clk (0);
396 udelay (1);
397 bc_ds1620_set_clk (1);
398 udelay (1);
399
400 value >>= 1;
401 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200402}
403
Wolfgang Denk610cf362006-05-03 01:24:04 +0200404static unsigned int ds1620_recv_bits (int nr)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200405{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200406 unsigned int value = 0, mask = 1;
407 int i;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200408
Wolfgang Denk610cf362006-05-03 01:24:04 +0200409 bc_ds1620_set_data (0);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200410
Wolfgang Denk610cf362006-05-03 01:24:04 +0200411 for (i = 0; i < nr; i++) {
412 bc_ds1620_set_clk (0);
413 udelay (1);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200414
Wolfgang Denk610cf362006-05-03 01:24:04 +0200415 if (bc_ds1620_get_data ())
416 value |= mask;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200417
Wolfgang Denk610cf362006-05-03 01:24:04 +0200418 mask <<= 1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200419
Wolfgang Denk610cf362006-05-03 01:24:04 +0200420 bc_ds1620_set_clk (1);
421 udelay (1);
422 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200423
Wolfgang Denk610cf362006-05-03 01:24:04 +0200424 return value;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200425}
426
Wolfgang Denk610cf362006-05-03 01:24:04 +0200427static void ds1620_out (int cmd, int bits, int value)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200428{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200429 bc_ds1620_set_clk (1);
430 bc_ds1620_set_data_dir (0);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200431
Wolfgang Denk610cf362006-05-03 01:24:04 +0200432 bc_ds1620_set_reset (0);
433 udelay (1);
434 bc_ds1620_set_reset (1);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200435
Wolfgang Denk610cf362006-05-03 01:24:04 +0200436 udelay (1);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200437
Wolfgang Denk610cf362006-05-03 01:24:04 +0200438 ds1620_send_bits (8, cmd);
439 if (bits)
440 ds1620_send_bits (bits, value);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200441
Wolfgang Denk610cf362006-05-03 01:24:04 +0200442 udelay (1);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200443
Wolfgang Denk610cf362006-05-03 01:24:04 +0200444 /* go stand alone */
445 bc_ds1620_set_data_dir (1);
446 bc_ds1620_set_reset (0);
447 bc_ds1620_set_clk (0);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200448
Wolfgang Denk610cf362006-05-03 01:24:04 +0200449 udelay (10000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200450}
451
Wolfgang Denk610cf362006-05-03 01:24:04 +0200452static unsigned int ds1620_in (int cmd, int bits)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200453{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200454 unsigned int value;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200455
Wolfgang Denk610cf362006-05-03 01:24:04 +0200456 bc_ds1620_set_clk (1);
457 bc_ds1620_set_data_dir (0);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200458
Wolfgang Denk610cf362006-05-03 01:24:04 +0200459 bc_ds1620_set_reset (0);
460 udelay (1);
461 bc_ds1620_set_reset (1);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200462
Wolfgang Denk610cf362006-05-03 01:24:04 +0200463 udelay (1);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200464
Wolfgang Denk610cf362006-05-03 01:24:04 +0200465 ds1620_send_bits (8, cmd);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200466
Wolfgang Denk610cf362006-05-03 01:24:04 +0200467 bc_ds1620_set_data_dir (1);
468 value = ds1620_recv_bits (bits);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200469
Wolfgang Denk610cf362006-05-03 01:24:04 +0200470 /* go stand alone */
471 bc_ds1620_set_data_dir (1);
472 bc_ds1620_set_reset (0);
473 bc_ds1620_set_clk (0);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200474
Wolfgang Denk610cf362006-05-03 01:24:04 +0200475 return value;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200476}
477
Wolfgang Denk610cf362006-05-03 01:24:04 +0200478static int cvt_9_to_int (unsigned int val)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200479{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200480 if (val & 0x100)
481 val |= 0xfffffe00;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200482
Wolfgang Denk610cf362006-05-03 01:24:04 +0200483 return val;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200484}
485
486/* set thermostate thresholds */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200487static void ds1620_write_state (struct therm *therm)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200488{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200489 ds1620_out (THERM_WRITE_TL, 9, therm->lo);
490 ds1620_out (THERM_WRITE_TH, 9, therm->hi);
491 ds1620_out (THERM_START_CONVERT, 0, 0);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200492}
493
Wolfgang Denk610cf362006-05-03 01:24:04 +0200494static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200495{
Wolfgang Denk610cf362006-05-03 01:24:04 +0200496 int i;
497 struct therm therm;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200498
Wolfgang Denk610cf362006-05-03 01:24:04 +0200499 sm501_gpio_init ();
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200500
Wolfgang Denk610cf362006-05-03 01:24:04 +0200501 /* print temperature */
502 if (argc == 1) {
503 i = cvt_9_to_int (ds1620_in (THERM_READ_TEMP, 9));
504 printf ("%d.%d C\n", i >> 1, i & 1 ? 5 : 0);
505 return 0;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200506 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200507
Wolfgang Denk610cf362006-05-03 01:24:04 +0200508 /* set to default operation */
509 if (strncmp (argv[1], "set", 3) == 0) {
510 if (strncmp (argv[2], "default", 3) == 0) {
511 therm.hi = +88;
512 therm.lo = -20;
513 therm.hi <<= 1;
514 therm.lo <<= 1;
515 ds1620_write_state (&therm);
516 ds1620_out (THERM_WRITE_CONFIG, 8, CFG_STANDALONE);
517 return 0;
518 }
519 }
520
521 printf ("Usage:%s\n", cmdtp->help);
522 return 1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200523}
524
Wolfgang Denk610cf362006-05-03 01:24:04 +0200525U_BOOT_CMD (temp, 3, 1, cmd_temp,
526 "temp - print current temperature\n",
527 "\n" "temp\n" " - print current temperature\n");
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200528
529#ifdef CONFIG_BC3450_CAN
530/*
531 * Initialise CAN interface
532 *
533 * return 1 on CAN initialization failure
534 * return 0 if no failure
535 */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200536int can_init (void)
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200537{
538 static int init_done = 0;
539 int i;
540 struct mpc5xxx_mscan *can1 =
Wolfgang Denk610cf362006-05-03 01:24:04 +0200541 (struct mpc5xxx_mscan *) (CFG_MBAR + 0x0900);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200542 struct mpc5xxx_mscan *can2 =
Wolfgang Denk610cf362006-05-03 01:24:04 +0200543 (struct mpc5xxx_mscan *) (CFG_MBAR + 0x0980);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200544
545 /* GPIO configuration of the CAN pins is done in BC3450.h */
546
547 if (!init_done) {
548 /* init CAN 1 */
549 can1->canctl1 |= 0x80; /* CAN enable */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200550 udelay (100);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200551
552 i = 0;
553 can1->canctl0 |= 0x02; /* sleep mode */
554 /* wait until sleep mode reached */
555 while (!(can1->canctl1 & 0x02)) {
Wolfgang Denk610cf362006-05-03 01:24:04 +0200556 udelay (10);
557 i++;
558 if (i == 10) {
559 printf ("%s: CAN1 initialize error, "
560 "can not enter sleep mode!\n",
561 __FUNCTION__);
562 return 1;
563 }
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200564 }
565 i = 0;
566 can1->canctl0 = 0x01; /* enter init mode */
567 /* wait until init mode reached */
568 while (!(can1->canctl1 & 0x01)) {
Wolfgang Denk610cf362006-05-03 01:24:04 +0200569 udelay (10);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200570 i++;
571 if (i == 10) {
572 printf ("%s: CAN1 initialize error, "
573 "can not enter init mode!\n",
574 __FUNCTION__);
575 return 1;
576 }
577 }
578 can1->canctl1 = 0x80;
579 can1->canctl1 |= 0x40;
580 can1->canbtr0 = 0x0F;
581 can1->canbtr1 = 0x7F;
582 can1->canidac &= ~(0x30);
583 can1->canidar1 = 0x00;
584 can1->canidar3 = 0x00;
585 can1->canidar5 = 0x00;
586 can1->canidar7 = 0x00;
587 can1->canidmr0 = 0xFF;
588 can1->canidmr1 = 0xFF;
589 can1->canidmr2 = 0xFF;
590 can1->canidmr3 = 0xFF;
591 can1->canidmr4 = 0xFF;
592 can1->canidmr5 = 0xFF;
593 can1->canidmr6 = 0xFF;
594 can1->canidmr7 = 0xFF;
595
596 i = 0;
597 can1->canctl0 &= ~(0x01); /* leave init mode */
598 can1->canctl0 &= ~(0x02);
599 /* wait until init and sleep mode left */
600 while ((can1->canctl1 & 0x01) || (can1->canctl1 & 0x02)) {
Wolfgang Denk610cf362006-05-03 01:24:04 +0200601 udelay (10);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200602 i++;
603 if (i == 10) {
604 printf ("%s: CAN1 initialize error, "
605 "can not leave init/sleep mode!\n",
606 __FUNCTION__);
607 return 1;
608 }
609 }
610
611 /* init CAN 2 */
612 can2->canctl1 |= 0x80; /* CAN enable */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200613 udelay (100);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200614
615 i = 0;
616 can2->canctl0 |= 0x02; /* sleep mode */
617 /* wait until sleep mode reached */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200618 while (!(can2->canctl1 & 0x02)) {
619 udelay (10);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200620 i++;
621 if (i == 10) {
622 printf ("%s: CAN2 initialize error, "
623 "can not enter sleep mode!\n",
624 __FUNCTION__);
625 return 1;
626 }
627 }
628 i = 0;
629 can2->canctl0 = 0x01; /* enter init mode */
630 /* wait until init mode reached */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200631 while (!(can2->canctl1 & 0x01)) {
632 udelay (10);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200633 i++;
634 if (i == 10) {
635 printf ("%s: CAN2 initialize error, "
636 "can not enter init mode!\n",
637 __FUNCTION__);
638 return 1;
639 }
640 }
641 can2->canctl1 = 0x80;
642 can2->canctl1 |= 0x40;
643 can2->canbtr0 = 0x0F;
644 can2->canbtr1 = 0x7F;
645 can2->canidac &= ~(0x30);
646 can2->canidar1 = 0x00;
647 can2->canidar3 = 0x00;
648 can2->canidar5 = 0x00;
649 can2->canidar7 = 0x00;
650 can2->canidmr0 = 0xFF;
651 can2->canidmr1 = 0xFF;
652 can2->canidmr2 = 0xFF;
653 can2->canidmr3 = 0xFF;
654 can2->canidmr4 = 0xFF;
655 can2->canidmr5 = 0xFF;
656 can2->canidmr6 = 0xFF;
657 can2->canidmr7 = 0xFF;
658 can2->canctl0 &= ~(0x01); /* leave init mode */
659 can2->canctl0 &= ~(0x02);
660
661 i = 0;
662 /* wait until init mode left */
663 while ((can2->canctl1 & 0x01) || (can2->canctl1 & 0x02)) {
Wolfgang Denk610cf362006-05-03 01:24:04 +0200664 udelay (10);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200665 i++;
666 if (i == 10) {
667 printf ("%s: CAN2 initialize error, "
668 "can not leave init/sleep mode!\n",
669 __FUNCTION__);
670 return 1;
671 }
672 }
673 init_done = 1;
674 }
675 return 0;
676}
677
678/*
679 * Do CAN test
680 * by sending message between CAN1 and CAN2
681 *
682 * return 1 on CAN failure
683 * return 0 if no failure
684 */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200685int do_can (char *argv[])
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200686{
687 int i;
Wolfgang Denk610cf362006-05-03 01:24:04 +0200688 struct mpc5xxx_mscan *can1 =
689 (struct mpc5xxx_mscan *) (CFG_MBAR + 0x0900);
690 struct mpc5xxx_mscan *can2 =
691 (struct mpc5xxx_mscan *) (CFG_MBAR + 0x0980);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200692
693 /* send a message on CAN1 */
694 can1->cantbsel = 0x01;
695 can1->cantxfg.idr[0] = 0x55;
696 can1->cantxfg.idr[1] = 0x00;
697 can1->cantxfg.idr[1] &= ~0x8;
698 can1->cantxfg.idr[1] &= ~0x10;
699 can1->cantxfg.dsr[0] = 0xCC;
700 can1->cantxfg.dlr = 1;
701 can1->cantxfg.tbpr = 0;
702 can1->cantflg = 0x01;
703
704 i = 0;
705 while ((can1->cantflg & 0x01) == 0) {
706 i++;
707 if (i == 10) {
708 printf ("%s: CAN1 send timeout, "
Wolfgang Denk610cf362006-05-03 01:24:04 +0200709 "can not send message!\n", __FUNCTION__);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200710 return 1;
711 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200712 udelay (1000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200713 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200714 udelay (1000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200715
716 i = 0;
Wolfgang Denk610cf362006-05-03 01:24:04 +0200717 while (!(can2->canrflg & 0x01)) {
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200718 i++;
719 if (i == 10) {
720 printf ("%s: CAN2 receive timeout, "
Wolfgang Denk610cf362006-05-03 01:24:04 +0200721 "no message received!\n", __FUNCTION__);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200722 return 1;
723 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200724 udelay (1000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200725 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200726
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200727 if (can2->canrxfg.dsr[0] != 0xCC) {
728 printf ("%s: CAN2 receive error, "
Wolfgang Denk610cf362006-05-03 01:24:04 +0200729 "data mismatch!\n", __FUNCTION__);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200730 return 1;
731 }
732
733 /* send a message on CAN2 */
734 can2->cantbsel = 0x01;
735 can2->cantxfg.idr[0] = 0x55;
736 can2->cantxfg.idr[1] = 0x00;
737 can2->cantxfg.idr[1] &= ~0x8;
738 can2->cantxfg.idr[1] &= ~0x10;
739 can2->cantxfg.dsr[0] = 0xCC;
740 can2->cantxfg.dlr = 1;
741 can2->cantxfg.tbpr = 0;
742 can2->cantflg = 0x01;
743
744 i = 0;
745 while ((can2->cantflg & 0x01) == 0) {
746 i++;
747 if (i == 10) {
748 printf ("%s: CAN2 send error, "
Wolfgang Denk610cf362006-05-03 01:24:04 +0200749 "can not send message!\n", __FUNCTION__);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200750 return 1;
751 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200752 udelay (1000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200753 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200754 udelay (1000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200755
756 i = 0;
Wolfgang Denk610cf362006-05-03 01:24:04 +0200757 while (!(can1->canrflg & 0x01)) {
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200758 i++;
759 if (i == 10) {
760 printf ("%s: CAN1 receive timeout, "
Wolfgang Denk610cf362006-05-03 01:24:04 +0200761 "no message received!\n", __FUNCTION__);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200762 return 1;
763 }
Wolfgang Denk610cf362006-05-03 01:24:04 +0200764 udelay (1000);
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200765 }
766
767 if (can1->canrxfg.dsr[0] != 0xCC) {
768 printf ("%s: CAN1 receive error 0x%02x\n",
769 __FUNCTION__, (can1->canrxfg.dsr[0]));
770 return 1;
771 }
772
773 return 0;
774}
775#endif /* CONFIG_BC3450_CAN */
776
777/*
778 * test - BC3450 HW test routines
779 */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200780int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200781{
782#ifdef CONFIG_BC3450_CAN
Wolfgang Denk610cf362006-05-03 01:24:04 +0200783 int rcode;
784
785 can_init ();
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200786#endif /* CONFIG_BC3450_CAN */
787
Wolfgang Denk610cf362006-05-03 01:24:04 +0200788 sm501_gpio_init ();
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200789
Wolfgang Denk610cf362006-05-03 01:24:04 +0200790 if (argc != 2) {
791 printf ("Usage:%s\n", cmdtp->help);
792 return 1;
793 }
794
795 if (strncmp (argv[1], "unit-off", 8) == 0) {
796 printf ("waiting 2 seconds...\n");
797 udelay (2000000);
798 *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
799 ~PWR_OFF;
800 return 0;
801 }
802#ifdef CONFIG_BC3450_CAN
803 else if (strncmp (argv[1], "can", 2) == 0) {
804 rcode = do_can (argv);
805 if (simple_strtoul (argv[2], NULL, 10) == 2) {
806 if (rcode == 0)
807 printf ("OK\n");
808 else
809 printf ("Error\n");
810 }
811 return rcode;
812 }
813#endif /* CONFIG_BC3450_CAN */
814
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200815 printf ("Usage:%s\n", cmdtp->help);
816 return 1;
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200817}
818
Wolfgang Denk610cf362006-05-03 01:24:04 +0200819U_BOOT_CMD (test, 2, 1, cmd_test, "test - unit test routines\n", "\n"
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200820#ifdef CONFIG_BC3450_CAN
Wolfgang Denk610cf362006-05-03 01:24:04 +0200821 "test can\n"
822 " - connect CAN1 (X8) with CAN2 (X9) for this test\n"
dzu@denx.de6ca24c62006-04-21 18:30:47 +0200823#endif /* CONFIG_BC3450_CAN */
Wolfgang Denk610cf362006-05-03 01:24:04 +0200824 "test unit-off\n"
825 " - turns off the BC3450 unit\n"
826 " WARNING: Unsaved environment variables will be lost!\n");
Jon Loeliger77a31852007-07-10 10:39:10 -0500827#endif