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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
wdenk81a88242002-10-26 15:22:42 +00002/*
Heiko Schocher3f4978c2012-01-16 21:12:24 +00003 * (C) Copyright 2009
4 * Sergey Kubushyn, himself, ksi@koi8.net
5 *
6 * Changes for unified multibus/multiadapter I2C support.
7 *
wdenk81a88242002-10-26 15:22:42 +00008 * (C) Copyright 2001
9 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
wdenk81a88242002-10-26 15:22:42 +000010 */
11
12/*
13 * I2C Functions similar to the standard memory functions.
14 *
15 * There are several parameters in many of the commands that bear further
16 * explanations:
17 *
wdenk81a88242002-10-26 15:22:42 +000018 * {i2c_chip} is the I2C chip address (the first byte sent on the bus).
19 * Each I2C chip on the bus has a unique address. On the I2C data bus,
20 * the address is the upper seven bits and the LSB is the "read/write"
21 * bit. Note that the {i2c_chip} address specified on the command
22 * line is not shifted up: e.g. a typical EEPROM memory chip may have
23 * an I2C address of 0x50, but the data put on the bus will be 0xA0
24 * for write and 0xA1 for read. This "non shifted" address notation
25 * matches at least half of the data sheets :-/.
26 *
27 * {addr} is the address (or offset) within the chip. Small memory
28 * chips have 8 bit addresses. Large memory chips have 16 bit
29 * addresses. Other memory chips have 9, 10, or 11 bit addresses.
30 * Many non-memory chips have multiple registers and {addr} is used
31 * as the register index. Some non-memory chips have only one register
32 * and therefore don't need any {addr} parameter.
33 *
34 * The default {addr} parameter is one byte (.1) which works well for
35 * memories and registers with 8 bits of address space.
36 *
37 * You can specify the length of the {addr} field with the optional .0,
38 * .1, or .2 modifier (similar to the .b, .w, .l modifier). If you are
39 * manipulating a single register device which doesn't use an address
40 * field, use "0.0" for the address and the ".0" length field will
41 * suppress the address in the I2C data stream. This also works for
42 * successive reads using the I2C auto-incrementing memory pointer.
43 *
44 * If you are manipulating a large memory with 2-byte addresses, use
45 * the .2 address modifier, e.g. 210.2 addresses location 528 (decimal).
46 *
47 * Then there are the unfortunate memory chips that spill the most
48 * significant 1, 2, or 3 bits of address into the chip address byte.
49 * This effectively makes one chip (logically) look like 2, 4, or
50 * 8 chips. This is handled (awkwardly) by #defining
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020051 * CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW and using the .1 modifier on the
wdenk81a88242002-10-26 15:22:42 +000052 * {addr} field (since .1 is the default, it doesn't actually have to
53 * be specified). Examples: given a memory chip at I2C chip address
54 * 0x50, the following would happen...
Peter Tyser0f89c542009-04-18 22:34:03 -050055 * i2c md 50 0 10 display 16 bytes starting at 0x000
wdenk81a88242002-10-26 15:22:42 +000056 * On the bus: <S> A0 00 <E> <S> A1 <rd> ... <rd>
Peter Tyser0f89c542009-04-18 22:34:03 -050057 * i2c md 50 100 10 display 16 bytes starting at 0x100
wdenk81a88242002-10-26 15:22:42 +000058 * On the bus: <S> A2 00 <E> <S> A3 <rd> ... <rd>
Peter Tyser0f89c542009-04-18 22:34:03 -050059 * i2c md 50 210 10 display 16 bytes starting at 0x210
wdenk81a88242002-10-26 15:22:42 +000060 * On the bus: <S> A4 10 <E> <S> A5 <rd> ... <rd>
61 * This is awfully ugly. It would be nice if someone would think up
62 * a better way of handling this.
63 *
64 * Adapted from cmd_mem.c which is copyright Wolfgang Denk (wd@denx.de).
65 */
66
67#include <common.h>
Simon Glass0098e172014-04-10 20:01:30 -060068#include <bootretry.h>
Simon Glass18d66532014-04-10 20:01:25 -060069#include <cli.h>
wdenk81a88242002-10-26 15:22:42 +000070#include <command.h>
Simon Glass24b852a2015-11-08 23:47:45 -070071#include <console.h>
Simon Glass63656b72014-12-10 08:55:48 -070072#include <dm.h>
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +000073#include <edid.h>
Heiko Schocher67b23a32008-10-15 09:39:47 +020074#include <environment.h>
Simon Glass63656b72014-12-10 08:55:48 -070075#include <errno.h>
wdenk81a88242002-10-26 15:22:42 +000076#include <i2c.h>
Heiko Schocher67b23a32008-10-15 09:39:47 +020077#include <malloc.h>
wdenk81a88242002-10-26 15:22:42 +000078#include <asm/byteorder.h>
Marek Vasut2515d842012-11-12 14:34:25 +000079#include <linux/compiler.h>
wdenk81a88242002-10-26 15:22:42 +000080
wdenk81a88242002-10-26 15:22:42 +000081/* Display values from last command.
82 * Memory modify remembered values are different from display memory.
83 */
Masahiro Yamada54684612014-12-20 03:34:23 +090084static uint i2c_dp_last_chip;
wdenk81a88242002-10-26 15:22:42 +000085static uint i2c_dp_last_addr;
86static uint i2c_dp_last_alen;
87static uint i2c_dp_last_length = 0x10;
88
Masahiro Yamada54684612014-12-20 03:34:23 +090089static uint i2c_mm_last_chip;
wdenk81a88242002-10-26 15:22:42 +000090static uint i2c_mm_last_addr;
91static uint i2c_mm_last_alen;
92
Ben Warrenbb99ad62006-09-07 16:50:54 -040093/* If only one I2C bus is present, the list of devices to ignore when
94 * the probe command is issued is represented by a 1D array of addresses.
95 * When multiple buses are present, the list is an array of bus-address
96 * pairs. The following macros take care of this */
97
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020098#if defined(CONFIG_SYS_I2C_NOPROBES)
Heiko Schocher9a2accb2012-10-25 10:32:14 +020099#if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS)
Ben Warrenbb99ad62006-09-07 16:50:54 -0400100static struct
101{
102 uchar bus;
103 uchar addr;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200104} i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES;
Ben Warrenbb99ad62006-09-07 16:50:54 -0400105#define GET_BUS_NUM i2c_get_bus_num()
106#define COMPARE_BUS(b,i) (i2c_no_probes[(i)].bus == (b))
107#define COMPARE_ADDR(a,i) (i2c_no_probes[(i)].addr == (a))
108#define NO_PROBE_ADDR(i) i2c_no_probes[(i)].addr
109#else /* single bus */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200110static uchar i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES;
Ben Warrenbb99ad62006-09-07 16:50:54 -0400111#define GET_BUS_NUM 0
112#define COMPARE_BUS(b,i) ((b) == 0) /* Make compiler happy */
113#define COMPARE_ADDR(a,i) (i2c_no_probes[(i)] == (a))
114#define NO_PROBE_ADDR(i) i2c_no_probes[(i)]
Heiko Schocher3f4978c2012-01-16 21:12:24 +0000115#endif /* defined(CONFIG_SYS_I2C) */
Heiko Schocher67b23a32008-10-15 09:39:47 +0200116#endif
117
Frans Meulenbroeksa266fe92010-03-26 09:46:40 +0100118#define DISP_LINE_LEN 16
119
Simon Glass63656b72014-12-10 08:55:48 -0700120/*
121 * Default for driver model is to use the chip's existing address length.
122 * For legacy code, this is not stored, so we need to use a suitable
123 * default.
124 */
125#ifdef CONFIG_DM_I2C
126#define DEFAULT_ADDR_LEN (-1)
127#else
128#define DEFAULT_ADDR_LEN 1
129#endif
130
131#ifdef CONFIG_DM_I2C
132static struct udevice *i2c_cur_bus;
133
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700134static int cmd_i2c_set_bus_num(unsigned int busnum)
Simon Glass63656b72014-12-10 08:55:48 -0700135{
136 struct udevice *bus;
137 int ret;
138
139 ret = uclass_get_device_by_seq(UCLASS_I2C, busnum, &bus);
140 if (ret) {
141 debug("%s: No bus %d\n", __func__, busnum);
142 return ret;
143 }
144 i2c_cur_bus = bus;
145
146 return 0;
147}
148
149static int i2c_get_cur_bus(struct udevice **busp)
150{
Lukasz Majewskie46f8a32017-03-21 12:08:25 +0100151#ifdef CONFIG_I2C_SET_DEFAULT_BUS_NUM
152 if (!i2c_cur_bus) {
153 if (cmd_i2c_set_bus_num(CONFIG_I2C_DEFAULT_BUS_NUMBER)) {
154 printf("Default I2C bus %d not found\n",
155 CONFIG_I2C_DEFAULT_BUS_NUMBER);
156 return -ENODEV;
157 }
158 }
159#endif
160
Simon Glass63656b72014-12-10 08:55:48 -0700161 if (!i2c_cur_bus) {
162 puts("No I2C bus selected\n");
163 return -ENODEV;
164 }
165 *busp = i2c_cur_bus;
166
167 return 0;
168}
169
170static int i2c_get_cur_bus_chip(uint chip_addr, struct udevice **devp)
171{
172 struct udevice *bus;
173 int ret;
174
175 ret = i2c_get_cur_bus(&bus);
176 if (ret)
177 return ret;
178
Simon Glass25ab4b02015-01-25 08:26:55 -0700179 return i2c_get_chip(bus, chip_addr, 1, devp);
Simon Glass63656b72014-12-10 08:55:48 -0700180}
181
182#endif
183
Marek Vasut06afa382012-11-12 14:34:27 +0000184/**
185 * i2c_init_board() - Board-specific I2C bus init
186 *
187 * This function is the default no-op implementation of I2C bus
Robert P. J. Day62a3b7d2016-07-15 13:44:45 -0400188 * initialization. This function can be overridden by board-specific
Marek Vasut06afa382012-11-12 14:34:27 +0000189 * implementation if needed.
190 */
Marek Vasut2515d842012-11-12 14:34:25 +0000191__weak
192void i2c_init_board(void)
Stefan Biglerc649dda2011-04-08 16:24:08 +0200193{
Stefan Biglerc649dda2011-04-08 16:24:08 +0200194}
Stefan Biglerc649dda2011-04-08 16:24:08 +0200195
Peter Tyser655b34a2009-04-18 22:34:01 -0500196/* TODO: Implement architecture-specific get/set functions */
Marek Vasut06afa382012-11-12 14:34:27 +0000197
198/**
199 * i2c_get_bus_speed() - Return I2C bus speed
200 *
201 * This function is the default implementation of function for retrieveing
202 * the current I2C bus speed in Hz.
203 *
204 * A driver implementing runtime switching of I2C bus speed must override
205 * this function to report the speed correctly. Simple or legacy drivers
206 * can use this fallback.
207 *
208 * Returns I2C bus speed in Hz.
209 */
Simon Glass63656b72014-12-10 08:55:48 -0700210#if !defined(CONFIG_SYS_I2C) && !defined(CONFIG_DM_I2C)
Heiko Schocher3f4978c2012-01-16 21:12:24 +0000211/*
212 * TODO: Implement architecture-specific get/set functions
213 * Should go away, if we switched completely to new multibus support
214 */
Marek Vasut2515d842012-11-12 14:34:25 +0000215__weak
216unsigned int i2c_get_bus_speed(void)
Peter Tyser655b34a2009-04-18 22:34:01 -0500217{
218 return CONFIG_SYS_I2C_SPEED;
219}
Peter Tyser655b34a2009-04-18 22:34:01 -0500220
Marek Vasut06afa382012-11-12 14:34:27 +0000221/**
222 * i2c_set_bus_speed() - Configure I2C bus speed
223 * @speed: Newly set speed of the I2C bus in Hz
224 *
225 * This function is the default implementation of function for setting
226 * the I2C bus speed in Hz.
227 *
228 * A driver implementing runtime switching of I2C bus speed must override
229 * this function to report the speed correctly. Simple or legacy drivers
230 * can use this fallback.
231 *
232 * Returns zero on success, negative value on error.
233 */
Marek Vasut2515d842012-11-12 14:34:25 +0000234__weak
235int i2c_set_bus_speed(unsigned int speed)
Peter Tyser655b34a2009-04-18 22:34:01 -0500236{
237 if (speed != CONFIG_SYS_I2C_SPEED)
238 return -1;
239
240 return 0;
241}
Heiko Schocher3f4978c2012-01-16 21:12:24 +0000242#endif
Peter Tyser655b34a2009-04-18 22:34:01 -0500243
Marek Vasut06afa382012-11-12 14:34:27 +0000244/**
245 * get_alen() - Small parser helper function to get address length
246 *
247 * Returns the address length.
Frans Meulenbroeks2c0dc992010-03-26 09:46:41 +0100248 */
Simon Glass63656b72014-12-10 08:55:48 -0700249static uint get_alen(char *arg, int default_len)
Frans Meulenbroeks2c0dc992010-03-26 09:46:41 +0100250{
251 int j;
252 int alen;
253
Simon Glass63656b72014-12-10 08:55:48 -0700254 alen = default_len;
Frans Meulenbroeks2c0dc992010-03-26 09:46:41 +0100255 for (j = 0; j < 8; j++) {
256 if (arg[j] == '.') {
257 alen = arg[j+1] - '0';
Frans Meulenbroeks2c0dc992010-03-26 09:46:41 +0100258 break;
259 } else if (arg[j] == '\0')
260 break;
261 }
262 return alen;
263}
264
Simon Glassc1a6f372014-11-11 10:46:17 -0700265enum i2c_err_op {
266 I2C_ERR_READ,
267 I2C_ERR_WRITE,
268};
269
270static int i2c_report_err(int ret, enum i2c_err_op op)
271{
272 printf("Error %s the chip: %d\n",
273 op == I2C_ERR_READ ? "reading" : "writing", ret);
274
275 return CMD_RET_FAILURE;
276}
277
Marek Vasut06afa382012-11-12 14:34:27 +0000278/**
279 * do_i2c_read() - Handle the "i2c read" command-line command
280 * @cmdtp: Command data struct pointer
281 * @flag: Command flag
282 * @argc: Command-line argument count
283 * @argv: Array of command-line arguments
284 *
285 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
286 * on error.
287 *
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100288 * Syntax:
289 * i2c read {i2c_chip} {devaddr}{.0, .1, .2} {len} {memaddr}
290 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200291static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100292{
Masahiro Yamada54684612014-12-20 03:34:23 +0900293 uint chip;
Simon Glass63656b72014-12-10 08:55:48 -0700294 uint devaddr, length;
295 int alen;
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100296 u_char *memaddr;
Simon Glass63656b72014-12-10 08:55:48 -0700297 int ret;
298#ifdef CONFIG_DM_I2C
299 struct udevice *dev;
300#endif
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100301
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200302 if (argc != 5)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000303 return CMD_RET_USAGE;
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100304
305 /*
306 * I2C chip address
307 */
308 chip = simple_strtoul(argv[1], NULL, 16);
309
310 /*
311 * I2C data address within the chip. This can be 1 or
312 * 2 bytes long. Some day it might be 3 bytes long :-).
313 */
314 devaddr = simple_strtoul(argv[2], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -0700315 alen = get_alen(argv[2], DEFAULT_ADDR_LEN);
Reinhard Meyer7a92e532010-08-25 14:41:16 +0200316 if (alen > 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000317 return CMD_RET_USAGE;
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100318
319 /*
320 * Length is the number of objects, not number of bytes.
321 */
322 length = simple_strtoul(argv[3], NULL, 16);
323
324 /*
325 * memaddr is the address where to store things in memory
326 */
327 memaddr = (u_char *)simple_strtoul(argv[4], NULL, 16);
328
Simon Glass63656b72014-12-10 08:55:48 -0700329#ifdef CONFIG_DM_I2C
330 ret = i2c_get_cur_bus_chip(chip, &dev);
331 if (!ret && alen != -1)
332 ret = i2c_set_chip_offset_len(dev, alen);
333 if (!ret)
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700334 ret = dm_i2c_read(dev, devaddr, memaddr, length);
Simon Glass63656b72014-12-10 08:55:48 -0700335#else
336 ret = i2c_read(chip, devaddr, alen, memaddr, length);
337#endif
338 if (ret)
339 return i2c_report_err(ret, I2C_ERR_READ);
340
Frans Meulenbroeks652e5352010-02-25 10:12:16 +0100341 return 0;
342}
343
York Sunff5d2dc2012-09-16 08:02:30 +0000344static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
345{
Masahiro Yamada54684612014-12-20 03:34:23 +0900346 uint chip;
Simon Glass63656b72014-12-10 08:55:48 -0700347 uint devaddr, length;
348 int alen;
York Sunff5d2dc2012-09-16 08:02:30 +0000349 u_char *memaddr;
Simon Glass63656b72014-12-10 08:55:48 -0700350 int ret;
351#ifdef CONFIG_DM_I2C
352 struct udevice *dev;
Lubomir Popoved16f142015-01-30 19:56:04 +0200353 struct dm_i2c_chip *i2c_chip;
Simon Glass63656b72014-12-10 08:55:48 -0700354#endif
York Sunff5d2dc2012-09-16 08:02:30 +0000355
Lubomir Popoved16f142015-01-30 19:56:04 +0200356 if ((argc < 5) || (argc > 6))
York Sunff5d2dc2012-09-16 08:02:30 +0000357 return cmd_usage(cmdtp);
358
359 /*
360 * memaddr is the address where to store things in memory
361 */
362 memaddr = (u_char *)simple_strtoul(argv[1], NULL, 16);
363
364 /*
365 * I2C chip address
366 */
367 chip = simple_strtoul(argv[2], NULL, 16);
368
369 /*
370 * I2C data address within the chip. This can be 1 or
371 * 2 bytes long. Some day it might be 3 bytes long :-).
372 */
373 devaddr = simple_strtoul(argv[3], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -0700374 alen = get_alen(argv[3], DEFAULT_ADDR_LEN);
York Sunff5d2dc2012-09-16 08:02:30 +0000375 if (alen > 3)
376 return cmd_usage(cmdtp);
377
378 /*
Lubomir Popoved16f142015-01-30 19:56:04 +0200379 * Length is the number of bytes.
York Sunff5d2dc2012-09-16 08:02:30 +0000380 */
381 length = simple_strtoul(argv[4], NULL, 16);
382
Simon Glass63656b72014-12-10 08:55:48 -0700383#ifdef CONFIG_DM_I2C
384 ret = i2c_get_cur_bus_chip(chip, &dev);
385 if (!ret && alen != -1)
386 ret = i2c_set_chip_offset_len(dev, alen);
387 if (ret)
388 return i2c_report_err(ret, I2C_ERR_WRITE);
Lubomir Popoved16f142015-01-30 19:56:04 +0200389 i2c_chip = dev_get_parent_platdata(dev);
390 if (!i2c_chip)
391 return i2c_report_err(ret, I2C_ERR_WRITE);
Simon Glass63656b72014-12-10 08:55:48 -0700392#endif
393
Lubomir Popoved16f142015-01-30 19:56:04 +0200394 if (argc == 6 && !strcmp(argv[5], "-s")) {
395 /*
396 * Write all bytes in a single I2C transaction. If the target
397 * device is an EEPROM, it is your responsibility to not cross
398 * a page boundary. No write delay upon completion, take this
399 * into account if linking commands.
400 */
Simon Glass63656b72014-12-10 08:55:48 -0700401#ifdef CONFIG_DM_I2C
Lubomir Popoved16f142015-01-30 19:56:04 +0200402 i2c_chip->flags &= ~DM_I2C_CHIP_WR_ADDRESS;
403 ret = dm_i2c_write(dev, devaddr, memaddr, length);
Simon Glass63656b72014-12-10 08:55:48 -0700404#else
Lubomir Popoved16f142015-01-30 19:56:04 +0200405 ret = i2c_write(chip, devaddr, alen, memaddr, length);
Simon Glass63656b72014-12-10 08:55:48 -0700406#endif
407 if (ret)
408 return i2c_report_err(ret, I2C_ERR_WRITE);
Lubomir Popoved16f142015-01-30 19:56:04 +0200409 } else {
410 /*
411 * Repeated addressing - perform <length> separate
412 * write transactions of one byte each
413 */
414 while (length-- > 0) {
415#ifdef CONFIG_DM_I2C
416 i2c_chip->flags |= DM_I2C_CHIP_WR_ADDRESS;
417 ret = dm_i2c_write(dev, devaddr++, memaddr++, 1);
418#else
419 ret = i2c_write(chip, devaddr++, alen, memaddr++, 1);
420#endif
421 if (ret)
422 return i2c_report_err(ret, I2C_ERR_WRITE);
York Sunff5d2dc2012-09-16 08:02:30 +0000423/*
424 * No write delay with FRAM devices.
425 */
426#if !defined(CONFIG_SYS_I2C_FRAM)
Lubomir Popoved16f142015-01-30 19:56:04 +0200427 udelay(11000);
York Sunff5d2dc2012-09-16 08:02:30 +0000428#endif
Lubomir Popoved16f142015-01-30 19:56:04 +0200429 }
York Sunff5d2dc2012-09-16 08:02:30 +0000430 }
431 return 0;
432}
433
Simon Glass63656b72014-12-10 08:55:48 -0700434#ifdef CONFIG_DM_I2C
435static int do_i2c_flags(cmd_tbl_t *cmdtp, int flag, int argc,
436 char *const argv[])
437{
438 struct udevice *dev;
439 uint flags;
440 int chip;
441 int ret;
442
443 if (argc < 2)
444 return CMD_RET_USAGE;
445
446 chip = simple_strtoul(argv[1], NULL, 16);
447 ret = i2c_get_cur_bus_chip(chip, &dev);
448 if (ret)
449 return i2c_report_err(ret, I2C_ERR_READ);
450
451 if (argc > 2) {
452 flags = simple_strtoul(argv[2], NULL, 16);
453 ret = i2c_set_chip_flags(dev, flags);
454 } else {
455 ret = i2c_get_chip_flags(dev, &flags);
456 if (!ret)
457 printf("%x\n", flags);
458 }
459 if (ret)
460 return i2c_report_err(ret, I2C_ERR_READ);
461
462 return 0;
463}
Simon Glassc10c8e32015-08-22 18:31:33 -0600464
465static int do_i2c_olen(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
466{
467 struct udevice *dev;
468 uint olen;
469 int chip;
470 int ret;
471
472 if (argc < 2)
473 return CMD_RET_USAGE;
474
475 chip = simple_strtoul(argv[1], NULL, 16);
476 ret = i2c_get_cur_bus_chip(chip, &dev);
477 if (ret)
478 return i2c_report_err(ret, I2C_ERR_READ);
479
480 if (argc > 2) {
481 olen = simple_strtoul(argv[2], NULL, 16);
482 ret = i2c_set_chip_offset_len(dev, olen);
483 } else {
484 ret = i2c_get_chip_offset_len(dev);
485 if (ret >= 0) {
486 printf("%x\n", ret);
487 ret = 0;
488 }
489 }
490 if (ret)
491 return i2c_report_err(ret, I2C_ERR_READ);
492
493 return 0;
494}
Simon Glass63656b72014-12-10 08:55:48 -0700495#endif
496
Marek Vasut06afa382012-11-12 14:34:27 +0000497/**
498 * do_i2c_md() - Handle the "i2c md" command-line command
499 * @cmdtp: Command data struct pointer
500 * @flag: Command flag
501 * @argc: Command-line argument count
502 * @argv: Array of command-line arguments
503 *
504 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
505 * on error.
506 *
Frans Meulenbroeks4a8cf332010-03-26 09:46:39 +0100507 * Syntax:
508 * i2c md {i2c_chip} {addr}{.0, .1, .2} {len}
509 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200510static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +0000511{
Masahiro Yamada54684612014-12-20 03:34:23 +0900512 uint chip;
Simon Glass63656b72014-12-10 08:55:48 -0700513 uint addr, length;
514 int alen;
wdenk81a88242002-10-26 15:22:42 +0000515 int j, nbytes, linebytes;
Simon Glass63656b72014-12-10 08:55:48 -0700516 int ret;
517#ifdef CONFIG_DM_I2C
518 struct udevice *dev;
519#endif
wdenk81a88242002-10-26 15:22:42 +0000520
521 /* We use the last specified parameters, unless new ones are
522 * entered.
523 */
524 chip = i2c_dp_last_chip;
525 addr = i2c_dp_last_addr;
526 alen = i2c_dp_last_alen;
527 length = i2c_dp_last_length;
528
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200529 if (argc < 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000530 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000531
532 if ((flag & CMD_FLAG_REPEAT) == 0) {
533 /*
534 * New command specified.
535 */
wdenk81a88242002-10-26 15:22:42 +0000536
537 /*
538 * I2C chip address
539 */
540 chip = simple_strtoul(argv[1], NULL, 16);
541
542 /*
543 * I2C data address within the chip. This can be 1 or
544 * 2 bytes long. Some day it might be 3 bytes long :-).
545 */
546 addr = simple_strtoul(argv[2], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -0700547 alen = get_alen(argv[2], DEFAULT_ADDR_LEN);
Reinhard Meyer7a92e532010-08-25 14:41:16 +0200548 if (alen > 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000549 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000550
551 /*
552 * If another parameter, it is the length to display.
553 * Length is the number of objects, not number of bytes.
554 */
555 if (argc > 3)
556 length = simple_strtoul(argv[3], NULL, 16);
557 }
558
Simon Glass63656b72014-12-10 08:55:48 -0700559#ifdef CONFIG_DM_I2C
560 ret = i2c_get_cur_bus_chip(chip, &dev);
561 if (!ret && alen != -1)
562 ret = i2c_set_chip_offset_len(dev, alen);
563 if (ret)
564 return i2c_report_err(ret, I2C_ERR_READ);
565#endif
566
wdenk81a88242002-10-26 15:22:42 +0000567 /*
568 * Print the lines.
569 *
570 * We buffer all read data, so we can make sure data is read only
571 * once.
572 */
573 nbytes = length;
574 do {
575 unsigned char linebuf[DISP_LINE_LEN];
576 unsigned char *cp;
577
578 linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
579
Simon Glass63656b72014-12-10 08:55:48 -0700580#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700581 ret = dm_i2c_read(dev, addr, linebuf, linebytes);
Simon Glass63656b72014-12-10 08:55:48 -0700582#else
583 ret = i2c_read(chip, addr, alen, linebuf, linebytes);
584#endif
585 if (ret)
Masahiro Yamada9e533cb2015-02-05 13:50:26 +0900586 return i2c_report_err(ret, I2C_ERR_READ);
Timur Tabie857a5b2006-11-28 12:09:35 -0600587 else {
wdenk81a88242002-10-26 15:22:42 +0000588 printf("%04x:", addr);
589 cp = linebuf;
590 for (j=0; j<linebytes; j++) {
591 printf(" %02x", *cp++);
592 addr++;
593 }
wdenk4b9206e2004-03-23 22:14:11 +0000594 puts (" ");
wdenk81a88242002-10-26 15:22:42 +0000595 cp = linebuf;
596 for (j=0; j<linebytes; j++) {
597 if ((*cp < 0x20) || (*cp > 0x7e))
wdenk4b9206e2004-03-23 22:14:11 +0000598 puts (".");
wdenk81a88242002-10-26 15:22:42 +0000599 else
600 printf("%c", *cp);
601 cp++;
602 }
wdenk4b9206e2004-03-23 22:14:11 +0000603 putc ('\n');
wdenk81a88242002-10-26 15:22:42 +0000604 }
605 nbytes -= linebytes;
606 } while (nbytes > 0);
607
608 i2c_dp_last_chip = chip;
609 i2c_dp_last_addr = addr;
610 i2c_dp_last_alen = alen;
611 i2c_dp_last_length = length;
612
613 return 0;
614}
615
Marek Vasut06afa382012-11-12 14:34:27 +0000616/**
617 * do_i2c_mw() - Handle the "i2c mw" command-line command
618 * @cmdtp: Command data struct pointer
619 * @flag: Command flag
620 * @argc: Command-line argument count
621 * @argv: Array of command-line arguments
622 *
623 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
624 * on error.
wdenk81a88242002-10-26 15:22:42 +0000625 *
626 * Syntax:
Peter Tyser0f89c542009-04-18 22:34:03 -0500627 * i2c mw {i2c_chip} {addr}{.0, .1, .2} {data} [{count}]
wdenk81a88242002-10-26 15:22:42 +0000628 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200629static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +0000630{
Masahiro Yamada54684612014-12-20 03:34:23 +0900631 uint chip;
wdenk81a88242002-10-26 15:22:42 +0000632 ulong addr;
Simon Glass63656b72014-12-10 08:55:48 -0700633 int alen;
wdenk81a88242002-10-26 15:22:42 +0000634 uchar byte;
635 int count;
Simon Glass63656b72014-12-10 08:55:48 -0700636 int ret;
637#ifdef CONFIG_DM_I2C
638 struct udevice *dev;
639#endif
wdenk81a88242002-10-26 15:22:42 +0000640
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200641 if ((argc < 4) || (argc > 5))
Simon Glass4c12eeb2011-12-10 08:44:01 +0000642 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000643
644 /*
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200645 * Chip is always specified.
646 */
wdenk81a88242002-10-26 15:22:42 +0000647 chip = simple_strtoul(argv[1], NULL, 16);
648
649 /*
650 * Address is always specified.
651 */
652 addr = simple_strtoul(argv[2], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -0700653 alen = get_alen(argv[2], DEFAULT_ADDR_LEN);
Reinhard Meyer7a92e532010-08-25 14:41:16 +0200654 if (alen > 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000655 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000656
Simon Glass63656b72014-12-10 08:55:48 -0700657#ifdef CONFIG_DM_I2C
658 ret = i2c_get_cur_bus_chip(chip, &dev);
659 if (!ret && alen != -1)
660 ret = i2c_set_chip_offset_len(dev, alen);
661 if (ret)
662 return i2c_report_err(ret, I2C_ERR_WRITE);
663#endif
wdenk81a88242002-10-26 15:22:42 +0000664 /*
665 * Value to write is always specified.
666 */
667 byte = simple_strtoul(argv[3], NULL, 16);
668
669 /*
670 * Optional count
671 */
Timur Tabie857a5b2006-11-28 12:09:35 -0600672 if (argc == 5)
wdenk81a88242002-10-26 15:22:42 +0000673 count = simple_strtoul(argv[4], NULL, 16);
Timur Tabie857a5b2006-11-28 12:09:35 -0600674 else
wdenk81a88242002-10-26 15:22:42 +0000675 count = 1;
wdenk81a88242002-10-26 15:22:42 +0000676
677 while (count-- > 0) {
Simon Glass63656b72014-12-10 08:55:48 -0700678#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700679 ret = dm_i2c_write(dev, addr++, &byte, 1);
Simon Glass63656b72014-12-10 08:55:48 -0700680#else
681 ret = i2c_write(chip, addr++, alen, &byte, 1);
682#endif
683 if (ret)
Masahiro Yamada9e533cb2015-02-05 13:50:26 +0900684 return i2c_report_err(ret, I2C_ERR_WRITE);
wdenk81a88242002-10-26 15:22:42 +0000685 /*
686 * Wait for the write to complete. The write can take
687 * up to 10mSec (we allow a little more time).
wdenk81a88242002-10-26 15:22:42 +0000688 */
d4f5c722005-08-12 21:16:13 +0200689/*
690 * No write delay with FRAM devices.
691 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200692#if !defined(CONFIG_SYS_I2C_FRAM)
wdenk81a88242002-10-26 15:22:42 +0000693 udelay(11000);
d4f5c722005-08-12 21:16:13 +0200694#endif
wdenk81a88242002-10-26 15:22:42 +0000695 }
696
Marek Vasut06afa382012-11-12 14:34:27 +0000697 return 0;
wdenk81a88242002-10-26 15:22:42 +0000698}
699
Marek Vasut06afa382012-11-12 14:34:27 +0000700/**
701 * do_i2c_crc() - Handle the "i2c crc32" command-line command
702 * @cmdtp: Command data struct pointer
703 * @flag: Command flag
704 * @argc: Command-line argument count
705 * @argv: Array of command-line arguments
706 *
707 * Calculate a CRC on memory
708 *
709 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
710 * on error.
wdenk81a88242002-10-26 15:22:42 +0000711 *
712 * Syntax:
Peter Tyser0f89c542009-04-18 22:34:03 -0500713 * i2c crc32 {i2c_chip} {addr}{.0, .1, .2} {count}
wdenk81a88242002-10-26 15:22:42 +0000714 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200715static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +0000716{
Masahiro Yamada54684612014-12-20 03:34:23 +0900717 uint chip;
wdenk81a88242002-10-26 15:22:42 +0000718 ulong addr;
Simon Glass63656b72014-12-10 08:55:48 -0700719 int alen;
wdenk81a88242002-10-26 15:22:42 +0000720 int count;
721 uchar byte;
722 ulong crc;
723 ulong err;
Simon Glass63656b72014-12-10 08:55:48 -0700724 int ret = 0;
725#ifdef CONFIG_DM_I2C
726 struct udevice *dev;
727#endif
wdenk81a88242002-10-26 15:22:42 +0000728
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200729 if (argc < 4)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000730 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000731
732 /*
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200733 * Chip is always specified.
734 */
wdenk81a88242002-10-26 15:22:42 +0000735 chip = simple_strtoul(argv[1], NULL, 16);
736
737 /*
738 * Address is always specified.
739 */
740 addr = simple_strtoul(argv[2], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -0700741 alen = get_alen(argv[2], DEFAULT_ADDR_LEN);
Reinhard Meyer7a92e532010-08-25 14:41:16 +0200742 if (alen > 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000743 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000744
Simon Glass63656b72014-12-10 08:55:48 -0700745#ifdef CONFIG_DM_I2C
746 ret = i2c_get_cur_bus_chip(chip, &dev);
747 if (!ret && alen != -1)
748 ret = i2c_set_chip_offset_len(dev, alen);
749 if (ret)
750 return i2c_report_err(ret, I2C_ERR_READ);
751#endif
wdenk81a88242002-10-26 15:22:42 +0000752 /*
753 * Count is always specified
754 */
755 count = simple_strtoul(argv[3], NULL, 16);
756
757 printf ("CRC32 for %08lx ... %08lx ==> ", addr, addr + count - 1);
758 /*
759 * CRC a byte at a time. This is going to be slooow, but hey, the
760 * memories are small and slow too so hopefully nobody notices.
761 */
762 crc = 0;
763 err = 0;
Timur Tabie857a5b2006-11-28 12:09:35 -0600764 while (count-- > 0) {
Simon Glass63656b72014-12-10 08:55:48 -0700765#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700766 ret = dm_i2c_read(dev, addr, &byte, 1);
Simon Glass63656b72014-12-10 08:55:48 -0700767#else
768 ret = i2c_read(chip, addr, alen, &byte, 1);
769#endif
770 if (ret)
wdenk81a88242002-10-26 15:22:42 +0000771 err++;
wdenk81a88242002-10-26 15:22:42 +0000772 crc = crc32 (crc, &byte, 1);
773 addr++;
774 }
Timur Tabie857a5b2006-11-28 12:09:35 -0600775 if (err > 0)
Simon Glass63656b72014-12-10 08:55:48 -0700776 i2c_report_err(ret, I2C_ERR_READ);
Timur Tabie857a5b2006-11-28 12:09:35 -0600777 else
wdenk81a88242002-10-26 15:22:42 +0000778 printf ("%08lx\n", crc);
wdenk81a88242002-10-26 15:22:42 +0000779
780 return 0;
781}
782
Marek Vasut06afa382012-11-12 14:34:27 +0000783/**
784 * mod_i2c_mem() - Handle the "i2c mm" and "i2c nm" command-line command
785 * @cmdtp: Command data struct pointer
786 * @flag: Command flag
787 * @argc: Command-line argument count
788 * @argv: Array of command-line arguments
789 *
790 * Modify memory.
791 *
792 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
793 * on error.
wdenk81a88242002-10-26 15:22:42 +0000794 *
795 * Syntax:
Peter Tyser0f89c542009-04-18 22:34:03 -0500796 * i2c mm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2}
797 * i2c nm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2}
wdenk81a88242002-10-26 15:22:42 +0000798 */
wdenk81a88242002-10-26 15:22:42 +0000799static int
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200800mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +0000801{
Masahiro Yamada54684612014-12-20 03:34:23 +0900802 uint chip;
wdenk81a88242002-10-26 15:22:42 +0000803 ulong addr;
Simon Glass63656b72014-12-10 08:55:48 -0700804 int alen;
wdenk81a88242002-10-26 15:22:42 +0000805 ulong data;
806 int size = 1;
807 int nbytes;
Simon Glass63656b72014-12-10 08:55:48 -0700808 int ret;
809#ifdef CONFIG_DM_I2C
810 struct udevice *dev;
811#endif
wdenk81a88242002-10-26 15:22:42 +0000812
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200813 if (argc != 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000814 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000815
Simon Glassb26440f2014-04-10 20:01:31 -0600816 bootretry_reset_cmd_timeout(); /* got a good command to get here */
wdenk81a88242002-10-26 15:22:42 +0000817 /*
818 * We use the last specified parameters, unless new ones are
819 * entered.
820 */
821 chip = i2c_mm_last_chip;
822 addr = i2c_mm_last_addr;
823 alen = i2c_mm_last_alen;
824
825 if ((flag & CMD_FLAG_REPEAT) == 0) {
826 /*
827 * New command specified. Check for a size specification.
828 * Defaults to byte if no or incorrect specification.
829 */
830 size = cmd_get_data_size(argv[0], 1);
831
832 /*
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200833 * Chip is always specified.
834 */
wdenk81a88242002-10-26 15:22:42 +0000835 chip = simple_strtoul(argv[1], NULL, 16);
836
837 /*
838 * Address is always specified.
839 */
840 addr = simple_strtoul(argv[2], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -0700841 alen = get_alen(argv[2], DEFAULT_ADDR_LEN);
Reinhard Meyer7a92e532010-08-25 14:41:16 +0200842 if (alen > 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000843 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +0000844 }
845
Simon Glass63656b72014-12-10 08:55:48 -0700846#ifdef CONFIG_DM_I2C
847 ret = i2c_get_cur_bus_chip(chip, &dev);
848 if (!ret && alen != -1)
849 ret = i2c_set_chip_offset_len(dev, alen);
850 if (ret)
851 return i2c_report_err(ret, I2C_ERR_WRITE);
852#endif
853
wdenk81a88242002-10-26 15:22:42 +0000854 /*
855 * Print the address, followed by value. Then accept input for
856 * the next value. A non-converted value exits.
857 */
858 do {
859 printf("%08lx:", addr);
Simon Glass63656b72014-12-10 08:55:48 -0700860#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700861 ret = dm_i2c_read(dev, addr, (uchar *)&data, size);
Simon Glass63656b72014-12-10 08:55:48 -0700862#else
863 ret = i2c_read(chip, addr, alen, (uchar *)&data, size);
864#endif
865 if (ret)
Masahiro Yamada9e533cb2015-02-05 13:50:26 +0900866 return i2c_report_err(ret, I2C_ERR_READ);
867
868 data = cpu_to_be32(data);
869 if (size == 1)
870 printf(" %02lx", (data >> 24) & 0x000000FF);
871 else if (size == 2)
872 printf(" %04lx", (data >> 16) & 0x0000FFFF);
873 else
874 printf(" %08lx", data);
wdenk81a88242002-10-26 15:22:42 +0000875
Simon Glasse1bf8242014-04-10 20:01:27 -0600876 nbytes = cli_readline(" ? ");
wdenk81a88242002-10-26 15:22:42 +0000877 if (nbytes == 0) {
878 /*
879 * <CR> pressed as only input, don't modify current
880 * location and move to next.
881 */
882 if (incrflag)
883 addr += size;
884 nbytes = size;
Simon Glassb26440f2014-04-10 20:01:31 -0600885 /* good enough to not time out */
886 bootretry_reset_cmd_timeout();
wdenk81a88242002-10-26 15:22:42 +0000887 }
888#ifdef CONFIG_BOOT_RETRY_TIME
Timur Tabie857a5b2006-11-28 12:09:35 -0600889 else if (nbytes == -2)
wdenk81a88242002-10-26 15:22:42 +0000890 break; /* timed out, exit the command */
wdenk81a88242002-10-26 15:22:42 +0000891#endif
892 else {
893 char *endp;
894
895 data = simple_strtoul(console_buffer, &endp, 16);
Timur Tabie857a5b2006-11-28 12:09:35 -0600896 if (size == 1)
wdenk81a88242002-10-26 15:22:42 +0000897 data = data << 24;
Timur Tabie857a5b2006-11-28 12:09:35 -0600898 else if (size == 2)
wdenk81a88242002-10-26 15:22:42 +0000899 data = data << 16;
wdenk81a88242002-10-26 15:22:42 +0000900 data = be32_to_cpu(data);
901 nbytes = endp - console_buffer;
902 if (nbytes) {
wdenk81a88242002-10-26 15:22:42 +0000903 /*
904 * good enough to not time out
905 */
Simon Glassb26440f2014-04-10 20:01:31 -0600906 bootretry_reset_cmd_timeout();
Simon Glass63656b72014-12-10 08:55:48 -0700907#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700908 ret = dm_i2c_write(dev, addr, (uchar *)&data,
909 size);
Simon Glass63656b72014-12-10 08:55:48 -0700910#else
911 ret = i2c_write(chip, addr, alen,
912 (uchar *)&data, size);
913#endif
914 if (ret)
Masahiro Yamada9e533cb2015-02-05 13:50:26 +0900915 return i2c_report_err(ret,
916 I2C_ERR_WRITE);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200917#ifdef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS
918 udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
wdenk2535d602003-07-17 23:16:40 +0000919#endif
wdenk81a88242002-10-26 15:22:42 +0000920 if (incrflag)
921 addr += size;
922 }
923 }
924 } while (nbytes);
925
Peter Tyser08007072008-08-15 14:36:32 -0500926 i2c_mm_last_chip = chip;
927 i2c_mm_last_addr = addr;
928 i2c_mm_last_alen = alen;
wdenk81a88242002-10-26 15:22:42 +0000929
930 return 0;
931}
932
Marek Vasut06afa382012-11-12 14:34:27 +0000933/**
934 * do_i2c_probe() - Handle the "i2c probe" command-line command
935 * @cmdtp: Command data struct pointer
936 * @flag: Command flag
937 * @argc: Command-line argument count
938 * @argv: Array of command-line arguments
939 *
940 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
941 * on error.
942 *
wdenk81a88242002-10-26 15:22:42 +0000943 * Syntax:
Eric Nelson54b99e52012-09-23 10:12:56 +0000944 * i2c probe {addr}
945 *
946 * Returns zero (success) if one or more I2C devices was found
wdenk81a88242002-10-26 15:22:42 +0000947 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200948static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +0000949{
950 int j;
Eric Nelson54b99e52012-09-23 10:12:56 +0000951 int addr = -1;
952 int found = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200953#if defined(CONFIG_SYS_I2C_NOPROBES)
wdenk81a88242002-10-26 15:22:42 +0000954 int k, skip;
Heiko Schocher3f4978c2012-01-16 21:12:24 +0000955 unsigned int bus = GET_BUS_NUM;
Ben Warrenbb99ad62006-09-07 16:50:54 -0400956#endif /* NOPROBES */
Simon Glass63656b72014-12-10 08:55:48 -0700957 int ret;
958#ifdef CONFIG_DM_I2C
959 struct udevice *bus, *dev;
960
961 if (i2c_get_cur_bus(&bus))
962 return CMD_RET_FAILURE;
963#endif
wdenk81a88242002-10-26 15:22:42 +0000964
Eric Nelson54b99e52012-09-23 10:12:56 +0000965 if (argc == 2)
966 addr = simple_strtol(argv[1], 0, 16);
967
wdenk4b9206e2004-03-23 22:14:11 +0000968 puts ("Valid chip addresses:");
Timur Tabie857a5b2006-11-28 12:09:35 -0600969 for (j = 0; j < 128; j++) {
Eric Nelson54b99e52012-09-23 10:12:56 +0000970 if ((0 <= addr) && (j != addr))
971 continue;
972
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200973#if defined(CONFIG_SYS_I2C_NOPROBES)
wdenk81a88242002-10-26 15:22:42 +0000974 skip = 0;
Axel Lincfb25cc2013-06-22 21:56:35 +0800975 for (k = 0; k < ARRAY_SIZE(i2c_no_probes); k++) {
Timur Tabie857a5b2006-11-28 12:09:35 -0600976 if (COMPARE_BUS(bus, k) && COMPARE_ADDR(j, k)) {
wdenk81a88242002-10-26 15:22:42 +0000977 skip = 1;
978 break;
979 }
980 }
981 if (skip)
982 continue;
983#endif
Simon Glass63656b72014-12-10 08:55:48 -0700984#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -0700985 ret = dm_i2c_probe(bus, j, 0, &dev);
Simon Glass63656b72014-12-10 08:55:48 -0700986#else
987 ret = i2c_probe(j);
988#endif
989 if (ret == 0) {
wdenk81a88242002-10-26 15:22:42 +0000990 printf(" %02X", j);
Eric Nelson54b99e52012-09-23 10:12:56 +0000991 found++;
992 }
wdenk81a88242002-10-26 15:22:42 +0000993 }
wdenk4b9206e2004-03-23 22:14:11 +0000994 putc ('\n');
wdenk81a88242002-10-26 15:22:42 +0000995
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200996#if defined(CONFIG_SYS_I2C_NOPROBES)
wdenk81a88242002-10-26 15:22:42 +0000997 puts ("Excluded chip addresses:");
Axel Lincfb25cc2013-06-22 21:56:35 +0800998 for (k = 0; k < ARRAY_SIZE(i2c_no_probes); k++) {
Timur Tabie857a5b2006-11-28 12:09:35 -0600999 if (COMPARE_BUS(bus,k))
Ben Warrenbb99ad62006-09-07 16:50:54 -04001000 printf(" %02X", NO_PROBE_ADDR(k));
1001 }
wdenk4b9206e2004-03-23 22:14:11 +00001002 putc ('\n');
wdenk81a88242002-10-26 15:22:42 +00001003#endif
1004
Eric Nelson54b99e52012-09-23 10:12:56 +00001005 return (0 == found);
wdenk81a88242002-10-26 15:22:42 +00001006}
1007
Marek Vasut06afa382012-11-12 14:34:27 +00001008/**
1009 * do_i2c_loop() - Handle the "i2c loop" command-line command
1010 * @cmdtp: Command data struct pointer
1011 * @flag: Command flag
1012 * @argc: Command-line argument count
1013 * @argv: Array of command-line arguments
1014 *
1015 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
1016 * on error.
1017 *
wdenk81a88242002-10-26 15:22:42 +00001018 * Syntax:
Peter Tyser0f89c542009-04-18 22:34:03 -05001019 * i2c loop {i2c_chip} {addr}{.0, .1, .2} [{length}] [{delay}]
wdenk81a88242002-10-26 15:22:42 +00001020 * {length} - Number of bytes to read
1021 * {delay} - A DECIMAL number and defaults to 1000 uSec
1022 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001023static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +00001024{
Masahiro Yamada54684612014-12-20 03:34:23 +09001025 uint chip;
Simon Glass63656b72014-12-10 08:55:48 -07001026 int alen;
wdenk81a88242002-10-26 15:22:42 +00001027 uint addr;
1028 uint length;
1029 u_char bytes[16];
1030 int delay;
Simon Glass63656b72014-12-10 08:55:48 -07001031 int ret;
1032#ifdef CONFIG_DM_I2C
1033 struct udevice *dev;
1034#endif
wdenk81a88242002-10-26 15:22:42 +00001035
Wolfgang Denk47e26b12010-07-17 01:06:04 +02001036 if (argc < 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001037 return CMD_RET_USAGE;
wdenk81a88242002-10-26 15:22:42 +00001038
1039 /*
1040 * Chip is always specified.
1041 */
1042 chip = simple_strtoul(argv[1], NULL, 16);
1043
1044 /*
1045 * Address is always specified.
1046 */
1047 addr = simple_strtoul(argv[2], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -07001048 alen = get_alen(argv[2], DEFAULT_ADDR_LEN);
Reinhard Meyer7a92e532010-08-25 14:41:16 +02001049 if (alen > 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001050 return CMD_RET_USAGE;
Simon Glass63656b72014-12-10 08:55:48 -07001051#ifdef CONFIG_DM_I2C
1052 ret = i2c_get_cur_bus_chip(chip, &dev);
1053 if (!ret && alen != -1)
1054 ret = i2c_set_chip_offset_len(dev, alen);
1055 if (ret)
1056 return i2c_report_err(ret, I2C_ERR_WRITE);
1057#endif
wdenk81a88242002-10-26 15:22:42 +00001058
1059 /*
1060 * Length is the number of objects, not number of bytes.
1061 */
1062 length = 1;
1063 length = simple_strtoul(argv[3], NULL, 16);
Timur Tabie857a5b2006-11-28 12:09:35 -06001064 if (length > sizeof(bytes))
wdenk81a88242002-10-26 15:22:42 +00001065 length = sizeof(bytes);
wdenk81a88242002-10-26 15:22:42 +00001066
1067 /*
1068 * The delay time (uSec) is optional.
1069 */
1070 delay = 1000;
Timur Tabie857a5b2006-11-28 12:09:35 -06001071 if (argc > 3)
wdenk81a88242002-10-26 15:22:42 +00001072 delay = simple_strtoul(argv[4], NULL, 10);
wdenk81a88242002-10-26 15:22:42 +00001073 /*
1074 * Run the loop...
1075 */
Timur Tabie857a5b2006-11-28 12:09:35 -06001076 while (1) {
Simon Glass63656b72014-12-10 08:55:48 -07001077#ifdef CONFIG_DM_I2C
Simon Glassf9a4c2d2015-01-12 18:02:07 -07001078 ret = dm_i2c_read(dev, addr, bytes, length);
Simon Glass63656b72014-12-10 08:55:48 -07001079#else
1080 ret = i2c_read(chip, addr, alen, bytes, length);
1081#endif
1082 if (ret)
1083 i2c_report_err(ret, I2C_ERR_READ);
wdenk81a88242002-10-26 15:22:42 +00001084 udelay(delay);
1085 }
1086
1087 /* NOTREACHED */
1088 return 0;
1089}
1090
wdenk81a88242002-10-26 15:22:42 +00001091/*
1092 * The SDRAM command is separately configured because many
1093 * (most?) embedded boards don't use SDRAM DIMMs.
Marek Vasut06afa382012-11-12 14:34:27 +00001094 *
1095 * FIXME: Document and probably move elsewhere!
wdenk81a88242002-10-26 15:22:42 +00001096 */
Jon Loeligerc76fe472007-07-08 18:02:23 -05001097#if defined(CONFIG_CMD_SDRAM)
Larry Johnson632de062008-01-11 23:26:18 -05001098static void print_ddr2_tcyc (u_char const b)
1099{
1100 printf ("%d.", (b >> 4) & 0x0F);
1101 switch (b & 0x0F) {
1102 case 0x0:
1103 case 0x1:
1104 case 0x2:
1105 case 0x3:
1106 case 0x4:
1107 case 0x5:
1108 case 0x6:
1109 case 0x7:
1110 case 0x8:
1111 case 0x9:
1112 printf ("%d ns\n", b & 0x0F);
1113 break;
1114 case 0xA:
1115 puts ("25 ns\n");
1116 break;
1117 case 0xB:
1118 puts ("33 ns\n");
1119 break;
1120 case 0xC:
1121 puts ("66 ns\n");
1122 break;
1123 case 0xD:
1124 puts ("75 ns\n");
1125 break;
1126 default:
1127 puts ("?? ns\n");
1128 break;
1129 }
1130}
1131
1132static void decode_bits (u_char const b, char const *str[], int const do_once)
1133{
1134 u_char mask;
1135
1136 for (mask = 0x80; mask != 0x00; mask >>= 1, ++str) {
1137 if (b & mask) {
1138 puts (*str);
1139 if (do_once)
1140 return;
1141 }
1142 }
1143}
wdenk81a88242002-10-26 15:22:42 +00001144
1145/*
1146 * Syntax:
Peter Tyser0f89c542009-04-18 22:34:03 -05001147 * i2c sdram {i2c_chip}
wdenk81a88242002-10-26 15:22:42 +00001148 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001149static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk81a88242002-10-26 15:22:42 +00001150{
Michal Simek18c4e7f2016-02-15 11:58:37 +01001151 enum { unknown, EDO, SDRAM, DDR, DDR2, DDR3, DDR4 } type;
Larry Johnson632de062008-01-11 23:26:18 -05001152
Masahiro Yamada54684612014-12-20 03:34:23 +09001153 uint chip;
wdenk81a88242002-10-26 15:22:42 +00001154 u_char data[128];
1155 u_char cksum;
Nobuhiro Iwamatsu28df8ed2017-12-01 14:39:40 +09001156 int j, ret;
1157#ifdef CONFIG_DM_I2C
1158 struct udevice *dev;
1159#endif
wdenk81a88242002-10-26 15:22:42 +00001160
Larry Johnson632de062008-01-11 23:26:18 -05001161 static const char *decode_CAS_DDR2[] = {
1162 " TBD", " 6", " 5", " 4", " 3", " 2", " TBD", " TBD"
1163 };
1164
1165 static const char *decode_CAS_default[] = {
1166 " TBD", " 7", " 6", " 5", " 4", " 3", " 2", " 1"
1167 };
1168
1169 static const char *decode_CS_WE_default[] = {
1170 " TBD", " 6", " 5", " 4", " 3", " 2", " 1", " 0"
1171 };
1172
1173 static const char *decode_byte21_default[] = {
1174 " TBD (bit 7)\n",
1175 " Redundant row address\n",
1176 " Differential clock input\n",
1177 " Registerd DQMB inputs\n",
1178 " Buffered DQMB inputs\n",
1179 " On-card PLL\n",
1180 " Registered address/control lines\n",
1181 " Buffered address/control lines\n"
1182 };
1183
1184 static const char *decode_byte22_DDR2[] = {
1185 " TBD (bit 7)\n",
1186 " TBD (bit 6)\n",
1187 " TBD (bit 5)\n",
1188 " TBD (bit 4)\n",
1189 " TBD (bit 3)\n",
1190 " Supports partial array self refresh\n",
1191 " Supports 50 ohm ODT\n",
1192 " Supports weak driver\n"
1193 };
1194
1195 static const char *decode_row_density_DDR2[] = {
1196 "512 MiB", "256 MiB", "128 MiB", "16 GiB",
1197 "8 GiB", "4 GiB", "2 GiB", "1 GiB"
1198 };
1199
1200 static const char *decode_row_density_default[] = {
1201 "512 MiB", "256 MiB", "128 MiB", "64 MiB",
1202 "32 MiB", "16 MiB", "8 MiB", "4 MiB"
1203 };
1204
Wolfgang Denk47e26b12010-07-17 01:06:04 +02001205 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001206 return CMD_RET_USAGE;
Wolfgang Denk47e26b12010-07-17 01:06:04 +02001207
wdenk81a88242002-10-26 15:22:42 +00001208 /*
1209 * Chip is always specified.
Larry Johnson632de062008-01-11 23:26:18 -05001210 */
1211 chip = simple_strtoul (argv[1], NULL, 16);
wdenk81a88242002-10-26 15:22:42 +00001212
Nobuhiro Iwamatsu28df8ed2017-12-01 14:39:40 +09001213#ifdef CONFIG_DM_I2C
1214 ret = i2c_get_cur_bus_chip(chip, &dev);
1215 if (!ret)
1216 ret = dm_i2c_read(dev, 0, data, sizeof(data));
1217#else
1218 ret = i2c_read(chip, 0, 1, data, sizeof(data));
1219#endif
1220 if (ret) {
wdenk4b9206e2004-03-23 22:14:11 +00001221 puts ("No SDRAM Serial Presence Detect found.\n");
wdenk81a88242002-10-26 15:22:42 +00001222 return 1;
1223 }
1224
1225 cksum = 0;
1226 for (j = 0; j < 63; j++) {
1227 cksum += data[j];
1228 }
Timur Tabie857a5b2006-11-28 12:09:35 -06001229 if (cksum != data[63]) {
wdenk81a88242002-10-26 15:22:42 +00001230 printf ("WARNING: Configuration data checksum failure:\n"
Larry Johnson632de062008-01-11 23:26:18 -05001231 " is 0x%02x, calculated 0x%02x\n", data[63], cksum);
wdenk81a88242002-10-26 15:22:42 +00001232 }
Larry Johnson632de062008-01-11 23:26:18 -05001233 printf ("SPD data revision %d.%d\n",
wdenk81a88242002-10-26 15:22:42 +00001234 (data[62] >> 4) & 0x0F, data[62] & 0x0F);
Larry Johnson632de062008-01-11 23:26:18 -05001235 printf ("Bytes used 0x%02X\n", data[0]);
1236 printf ("Serial memory size 0x%02X\n", 1 << data[1]);
1237
wdenk4b9206e2004-03-23 22:14:11 +00001238 puts ("Memory type ");
Larry Johnson632de062008-01-11 23:26:18 -05001239 switch (data[2]) {
Larry Johnson0df6b842008-01-10 22:23:39 -05001240 case 2:
1241 type = EDO;
1242 puts ("EDO\n");
1243 break;
1244 case 4:
1245 type = SDRAM;
1246 puts ("SDRAM\n");
1247 break;
Michal Simek18c4e7f2016-02-15 11:58:37 +01001248 case 7:
1249 type = DDR;
1250 puts("DDR\n");
1251 break;
Larry Johnson0df6b842008-01-10 22:23:39 -05001252 case 8:
1253 type = DDR2;
1254 puts ("DDR2\n");
1255 break;
Michal Simek18c4e7f2016-02-15 11:58:37 +01001256 case 11:
1257 type = DDR3;
1258 puts("DDR3\n");
1259 break;
1260 case 12:
1261 type = DDR4;
1262 puts("DDR4\n");
1263 break;
Larry Johnson0df6b842008-01-10 22:23:39 -05001264 default:
1265 type = unknown;
1266 puts ("unknown\n");
1267 break;
wdenk81a88242002-10-26 15:22:42 +00001268 }
Larry Johnson632de062008-01-11 23:26:18 -05001269
wdenk4b9206e2004-03-23 22:14:11 +00001270 puts ("Row address bits ");
Timur Tabie857a5b2006-11-28 12:09:35 -06001271 if ((data[3] & 0x00F0) == 0)
Larry Johnson632de062008-01-11 23:26:18 -05001272 printf ("%d\n", data[3] & 0x0F);
Timur Tabie857a5b2006-11-28 12:09:35 -06001273 else
Larry Johnson632de062008-01-11 23:26:18 -05001274 printf ("%d/%d\n", data[3] & 0x0F, (data[3] >> 4) & 0x0F);
1275
wdenk4b9206e2004-03-23 22:14:11 +00001276 puts ("Column address bits ");
Timur Tabie857a5b2006-11-28 12:09:35 -06001277 if ((data[4] & 0x00F0) == 0)
Larry Johnson632de062008-01-11 23:26:18 -05001278 printf ("%d\n", data[4] & 0x0F);
Timur Tabie857a5b2006-11-28 12:09:35 -06001279 else
Larry Johnson632de062008-01-11 23:26:18 -05001280 printf ("%d/%d\n", data[4] & 0x0F, (data[4] >> 4) & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001281
1282 switch (type) {
1283 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001284 printf ("Number of ranks %d\n",
1285 (data[5] & 0x07) + 1);
Larry Johnson0df6b842008-01-10 22:23:39 -05001286 break;
1287 default:
Larry Johnson632de062008-01-11 23:26:18 -05001288 printf ("Module rows %d\n", data[5]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001289 break;
1290 }
1291
1292 switch (type) {
1293 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001294 printf ("Module data width %d bits\n", data[6]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001295 break;
1296 default:
Larry Johnson632de062008-01-11 23:26:18 -05001297 printf ("Module data width %d bits\n",
1298 (data[7] << 8) | data[6]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001299 break;
1300 }
1301
wdenk4b9206e2004-03-23 22:14:11 +00001302 puts ("Interface signal levels ");
wdenk81a88242002-10-26 15:22:42 +00001303 switch(data[8]) {
Larry Johnson0df6b842008-01-10 22:23:39 -05001304 case 0: puts ("TTL 5.0 V\n"); break;
wdenk4b9206e2004-03-23 22:14:11 +00001305 case 1: puts ("LVTTL\n"); break;
Larry Johnson0df6b842008-01-10 22:23:39 -05001306 case 2: puts ("HSTL 1.5 V\n"); break;
1307 case 3: puts ("SSTL 3.3 V\n"); break;
1308 case 4: puts ("SSTL 2.5 V\n"); break;
1309 case 5: puts ("SSTL 1.8 V\n"); break;
wdenk4b9206e2004-03-23 22:14:11 +00001310 default: puts ("unknown\n"); break;
wdenk81a88242002-10-26 15:22:42 +00001311 }
Larry Johnson0df6b842008-01-10 22:23:39 -05001312
1313 switch (type) {
1314 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001315 printf ("SDRAM cycle time ");
1316 print_ddr2_tcyc (data[9]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001317 break;
1318 default:
Larry Johnson632de062008-01-11 23:26:18 -05001319 printf ("SDRAM cycle time %d.%d ns\n",
1320 (data[9] >> 4) & 0x0F, data[9] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001321 break;
1322 }
1323
1324 switch (type) {
1325 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001326 printf ("SDRAM access time 0.%d%d ns\n",
1327 (data[10] >> 4) & 0x0F, data[10] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001328 break;
1329 default:
Larry Johnson632de062008-01-11 23:26:18 -05001330 printf ("SDRAM access time %d.%d ns\n",
1331 (data[10] >> 4) & 0x0F, data[10] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001332 break;
1333 }
1334
wdenk4b9206e2004-03-23 22:14:11 +00001335 puts ("EDC configuration ");
Larry Johnson632de062008-01-11 23:26:18 -05001336 switch (data[11]) {
wdenk4b9206e2004-03-23 22:14:11 +00001337 case 0: puts ("None\n"); break;
1338 case 1: puts ("Parity\n"); break;
1339 case 2: puts ("ECC\n"); break;
1340 default: puts ("unknown\n"); break;
wdenk81a88242002-10-26 15:22:42 +00001341 }
Larry Johnson632de062008-01-11 23:26:18 -05001342
Timur Tabie857a5b2006-11-28 12:09:35 -06001343 if ((data[12] & 0x80) == 0)
wdenk4b9206e2004-03-23 22:14:11 +00001344 puts ("No self refresh, rate ");
Timur Tabie857a5b2006-11-28 12:09:35 -06001345 else
wdenk4b9206e2004-03-23 22:14:11 +00001346 puts ("Self refresh, rate ");
Larry Johnson632de062008-01-11 23:26:18 -05001347
wdenk81a88242002-10-26 15:22:42 +00001348 switch(data[12] & 0x7F) {
Larry Johnson632de062008-01-11 23:26:18 -05001349 case 0: puts ("15.625 us\n"); break;
1350 case 1: puts ("3.9 us\n"); break;
1351 case 2: puts ("7.8 us\n"); break;
1352 case 3: puts ("31.3 us\n"); break;
1353 case 4: puts ("62.5 us\n"); break;
1354 case 5: puts ("125 us\n"); break;
wdenk4b9206e2004-03-23 22:14:11 +00001355 default: puts ("unknown\n"); break;
wdenk81a88242002-10-26 15:22:42 +00001356 }
Larry Johnson0df6b842008-01-10 22:23:39 -05001357
1358 switch (type) {
1359 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001360 printf ("SDRAM width (primary) %d\n", data[13]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001361 break;
1362 default:
Larry Johnson632de062008-01-11 23:26:18 -05001363 printf ("SDRAM width (primary) %d\n", data[13] & 0x7F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001364 if ((data[13] & 0x80) != 0) {
Larry Johnson632de062008-01-11 23:26:18 -05001365 printf (" (second bank) %d\n",
1366 2 * (data[13] & 0x7F));
Larry Johnson0df6b842008-01-10 22:23:39 -05001367 }
1368 break;
wdenk81a88242002-10-26 15:22:42 +00001369 }
Larry Johnson0df6b842008-01-10 22:23:39 -05001370
1371 switch (type) {
1372 case DDR2:
1373 if (data[14] != 0)
Larry Johnson632de062008-01-11 23:26:18 -05001374 printf ("EDC width %d\n", data[14]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001375 break;
1376 default:
1377 if (data[14] != 0) {
Larry Johnson632de062008-01-11 23:26:18 -05001378 printf ("EDC width %d\n",
1379 data[14] & 0x7F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001380
1381 if ((data[14] & 0x80) != 0) {
Larry Johnson632de062008-01-11 23:26:18 -05001382 printf (" (second bank) %d\n",
1383 2 * (data[14] & 0x7F));
Larry Johnson0df6b842008-01-10 22:23:39 -05001384 }
1385 }
1386 break;
1387 }
1388
Larry Johnson632de062008-01-11 23:26:18 -05001389 if (DDR2 != type) {
1390 printf ("Min clock delay, back-to-back random column addresses "
1391 "%d\n", data[15]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001392 }
1393
wdenk4b9206e2004-03-23 22:14:11 +00001394 puts ("Burst length(s) ");
1395 if (data[16] & 0x80) puts (" Page");
1396 if (data[16] & 0x08) puts (" 8");
1397 if (data[16] & 0x04) puts (" 4");
1398 if (data[16] & 0x02) puts (" 2");
1399 if (data[16] & 0x01) puts (" 1");
1400 putc ('\n');
Larry Johnson632de062008-01-11 23:26:18 -05001401 printf ("Number of banks %d\n", data[17]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001402
1403 switch (type) {
1404 case DDR2:
1405 puts ("CAS latency(s) ");
Larry Johnson632de062008-01-11 23:26:18 -05001406 decode_bits (data[18], decode_CAS_DDR2, 0);
Larry Johnson0df6b842008-01-10 22:23:39 -05001407 putc ('\n');
1408 break;
1409 default:
1410 puts ("CAS latency(s) ");
Larry Johnson632de062008-01-11 23:26:18 -05001411 decode_bits (data[18], decode_CAS_default, 0);
Larry Johnson0df6b842008-01-10 22:23:39 -05001412 putc ('\n');
1413 break;
1414 }
1415
1416 if (DDR2 != type) {
1417 puts ("CS latency(s) ");
Larry Johnson632de062008-01-11 23:26:18 -05001418 decode_bits (data[19], decode_CS_WE_default, 0);
Larry Johnson0df6b842008-01-10 22:23:39 -05001419 putc ('\n');
1420 }
1421
1422 if (DDR2 != type) {
1423 puts ("WE latency(s) ");
Larry Johnson632de062008-01-11 23:26:18 -05001424 decode_bits (data[20], decode_CS_WE_default, 0);
Larry Johnson0df6b842008-01-10 22:23:39 -05001425 putc ('\n');
1426 }
1427
1428 switch (type) {
1429 case DDR2:
1430 puts ("Module attributes:\n");
1431 if (data[21] & 0x80)
1432 puts (" TBD (bit 7)\n");
1433 if (data[21] & 0x40)
1434 puts (" Analysis probe installed\n");
1435 if (data[21] & 0x20)
1436 puts (" TBD (bit 5)\n");
1437 if (data[21] & 0x10)
1438 puts (" FET switch external enable\n");
Larry Johnson632de062008-01-11 23:26:18 -05001439 printf (" %d PLLs on DIMM\n", (data[21] >> 2) & 0x03);
Larry Johnson0df6b842008-01-10 22:23:39 -05001440 if (data[20] & 0x11) {
Larry Johnson632de062008-01-11 23:26:18 -05001441 printf (" %d active registers on DIMM\n",
1442 (data[21] & 0x03) + 1);
Larry Johnson0df6b842008-01-10 22:23:39 -05001443 }
1444 break;
1445 default:
1446 puts ("Module attributes:\n");
1447 if (!data[21])
1448 puts (" (none)\n");
Larry Johnson632de062008-01-11 23:26:18 -05001449 else
1450 decode_bits (data[21], decode_byte21_default, 0);
Larry Johnson0df6b842008-01-10 22:23:39 -05001451 break;
1452 }
1453
1454 switch (type) {
1455 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001456 decode_bits (data[22], decode_byte22_DDR2, 0);
Larry Johnson0df6b842008-01-10 22:23:39 -05001457 break;
1458 default:
1459 puts ("Device attributes:\n");
1460 if (data[22] & 0x80) puts (" TBD (bit 7)\n");
1461 if (data[22] & 0x40) puts (" TBD (bit 6)\n");
1462 if (data[22] & 0x20) puts (" Upper Vcc tolerance 5%\n");
1463 else puts (" Upper Vcc tolerance 10%\n");
1464 if (data[22] & 0x10) puts (" Lower Vcc tolerance 5%\n");
1465 else puts (" Lower Vcc tolerance 10%\n");
1466 if (data[22] & 0x08) puts (" Supports write1/read burst\n");
1467 if (data[22] & 0x04) puts (" Supports precharge all\n");
1468 if (data[22] & 0x02) puts (" Supports auto precharge\n");
1469 if (data[22] & 0x01) puts (" Supports early RAS# precharge\n");
1470 break;
1471 }
1472
1473 switch (type) {
1474 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001475 printf ("SDRAM cycle time (2nd highest CAS latency) ");
1476 print_ddr2_tcyc (data[23]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001477 break;
1478 default:
Larry Johnson632de062008-01-11 23:26:18 -05001479 printf ("SDRAM cycle time (2nd highest CAS latency) %d."
1480 "%d ns\n", (data[23] >> 4) & 0x0F, data[23] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001481 break;
1482 }
1483
1484 switch (type) {
1485 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001486 printf ("SDRAM access from clock (2nd highest CAS latency) 0."
1487 "%d%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001488 break;
1489 default:
Larry Johnson632de062008-01-11 23:26:18 -05001490 printf ("SDRAM access from clock (2nd highest CAS latency) %d."
1491 "%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001492 break;
1493 }
1494
1495 switch (type) {
1496 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001497 printf ("SDRAM cycle time (3rd highest CAS latency) ");
1498 print_ddr2_tcyc (data[25]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001499 break;
1500 default:
Larry Johnson632de062008-01-11 23:26:18 -05001501 printf ("SDRAM cycle time (3rd highest CAS latency) %d."
1502 "%d ns\n", (data[25] >> 4) & 0x0F, data[25] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001503 break;
1504 }
1505
1506 switch (type) {
1507 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001508 printf ("SDRAM access from clock (3rd highest CAS latency) 0."
1509 "%d%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001510 break;
1511 default:
Larry Johnson632de062008-01-11 23:26:18 -05001512 printf ("SDRAM access from clock (3rd highest CAS latency) %d."
1513 "%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001514 break;
1515 }
1516
1517 switch (type) {
1518 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001519 printf ("Minimum row precharge %d.%02d ns\n",
1520 (data[27] >> 2) & 0x3F, 25 * (data[27] & 0x03));
Larry Johnson0df6b842008-01-10 22:23:39 -05001521 break;
1522 default:
Larry Johnson632de062008-01-11 23:26:18 -05001523 printf ("Minimum row precharge %d ns\n", data[27]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001524 break;
1525 }
1526
1527 switch (type) {
1528 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001529 printf ("Row active to row active min %d.%02d ns\n",
1530 (data[28] >> 2) & 0x3F, 25 * (data[28] & 0x03));
Larry Johnson0df6b842008-01-10 22:23:39 -05001531 break;
1532 default:
Larry Johnson632de062008-01-11 23:26:18 -05001533 printf ("Row active to row active min %d ns\n", data[28]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001534 break;
1535 }
1536
1537 switch (type) {
1538 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001539 printf ("RAS to CAS delay min %d.%02d ns\n",
1540 (data[29] >> 2) & 0x3F, 25 * (data[29] & 0x03));
Larry Johnson0df6b842008-01-10 22:23:39 -05001541 break;
1542 default:
Larry Johnson632de062008-01-11 23:26:18 -05001543 printf ("RAS to CAS delay min %d ns\n", data[29]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001544 break;
1545 }
1546
Larry Johnson632de062008-01-11 23:26:18 -05001547 printf ("Minimum RAS pulse width %d ns\n", data[30]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001548
1549 switch (type) {
1550 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001551 puts ("Density of each row ");
1552 decode_bits (data[31], decode_row_density_DDR2, 1);
1553 putc ('\n');
Larry Johnson0df6b842008-01-10 22:23:39 -05001554 break;
1555 default:
Larry Johnson632de062008-01-11 23:26:18 -05001556 puts ("Density of each row ");
1557 decode_bits (data[31], decode_row_density_default, 1);
1558 putc ('\n');
Larry Johnson0df6b842008-01-10 22:23:39 -05001559 break;
1560 }
1561
1562 switch (type) {
1563 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001564 puts ("Command and Address setup ");
Larry Johnson0df6b842008-01-10 22:23:39 -05001565 if (data[32] >= 0xA0) {
Larry Johnson632de062008-01-11 23:26:18 -05001566 printf ("1.%d%d ns\n",
1567 ((data[32] >> 4) & 0x0F) - 10, data[32] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001568 } else {
Larry Johnson632de062008-01-11 23:26:18 -05001569 printf ("0.%d%d ns\n",
1570 ((data[32] >> 4) & 0x0F), data[32] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001571 }
1572 break;
1573 default:
Larry Johnson632de062008-01-11 23:26:18 -05001574 printf ("Command and Address setup %c%d.%d ns\n",
1575 (data[32] & 0x80) ? '-' : '+',
1576 (data[32] >> 4) & 0x07, data[32] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001577 break;
1578 }
1579
1580 switch (type) {
1581 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001582 puts ("Command and Address hold ");
Larry Johnson0df6b842008-01-10 22:23:39 -05001583 if (data[33] >= 0xA0) {
Larry Johnson632de062008-01-11 23:26:18 -05001584 printf ("1.%d%d ns\n",
1585 ((data[33] >> 4) & 0x0F) - 10, data[33] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001586 } else {
Larry Johnson632de062008-01-11 23:26:18 -05001587 printf ("0.%d%d ns\n",
1588 ((data[33] >> 4) & 0x0F), data[33] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001589 }
1590 break;
1591 default:
Larry Johnson632de062008-01-11 23:26:18 -05001592 printf ("Command and Address hold %c%d.%d ns\n",
1593 (data[33] & 0x80) ? '-' : '+',
1594 (data[33] >> 4) & 0x07, data[33] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001595 break;
1596 }
1597
1598 switch (type) {
1599 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001600 printf ("Data signal input setup 0.%d%d ns\n",
1601 (data[34] >> 4) & 0x0F, data[34] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001602 break;
1603 default:
Larry Johnson632de062008-01-11 23:26:18 -05001604 printf ("Data signal input setup %c%d.%d ns\n",
1605 (data[34] & 0x80) ? '-' : '+',
1606 (data[34] >> 4) & 0x07, data[34] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001607 break;
1608 }
1609
1610 switch (type) {
1611 case DDR2:
Larry Johnson632de062008-01-11 23:26:18 -05001612 printf ("Data signal input hold 0.%d%d ns\n",
1613 (data[35] >> 4) & 0x0F, data[35] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001614 break;
1615 default:
Larry Johnson632de062008-01-11 23:26:18 -05001616 printf ("Data signal input hold %c%d.%d ns\n",
1617 (data[35] & 0x80) ? '-' : '+',
1618 (data[35] >> 4) & 0x07, data[35] & 0x0F);
Larry Johnson0df6b842008-01-10 22:23:39 -05001619 break;
1620 }
1621
wdenk4b9206e2004-03-23 22:14:11 +00001622 puts ("Manufacturer's JEDEC ID ");
Timur Tabie857a5b2006-11-28 12:09:35 -06001623 for (j = 64; j <= 71; j++)
Larry Johnson632de062008-01-11 23:26:18 -05001624 printf ("%02X ", data[j]);
wdenk4b9206e2004-03-23 22:14:11 +00001625 putc ('\n');
Larry Johnson632de062008-01-11 23:26:18 -05001626 printf ("Manufacturing Location %02X\n", data[72]);
wdenk4b9206e2004-03-23 22:14:11 +00001627 puts ("Manufacturer's Part Number ");
Timur Tabie857a5b2006-11-28 12:09:35 -06001628 for (j = 73; j <= 90; j++)
Larry Johnson632de062008-01-11 23:26:18 -05001629 printf ("%02X ", data[j]);
wdenk4b9206e2004-03-23 22:14:11 +00001630 putc ('\n');
Larry Johnson632de062008-01-11 23:26:18 -05001631 printf ("Revision Code %02X %02X\n", data[91], data[92]);
1632 printf ("Manufacturing Date %02X %02X\n", data[93], data[94]);
wdenk4b9206e2004-03-23 22:14:11 +00001633 puts ("Assembly Serial Number ");
Timur Tabie857a5b2006-11-28 12:09:35 -06001634 for (j = 95; j <= 98; j++)
Larry Johnson632de062008-01-11 23:26:18 -05001635 printf ("%02X ", data[j]);
wdenk4b9206e2004-03-23 22:14:11 +00001636 putc ('\n');
wdenk81a88242002-10-26 15:22:42 +00001637
Larry Johnson0df6b842008-01-10 22:23:39 -05001638 if (DDR2 != type) {
Larry Johnson632de062008-01-11 23:26:18 -05001639 printf ("Speed rating PC%d\n",
1640 data[126] == 0x66 ? 66 : data[126]);
Larry Johnson0df6b842008-01-10 22:23:39 -05001641 }
wdenk81a88242002-10-26 15:22:42 +00001642 return 0;
1643}
Jon Loeliger90253172007-07-10 11:02:44 -05001644#endif
wdenk81a88242002-10-26 15:22:42 +00001645
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +00001646/*
1647 * Syntax:
1648 * i2c edid {i2c_chip}
1649 */
1650#if defined(CONFIG_I2C_EDID)
1651int do_edid(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
1652{
Masahiro Yamada54684612014-12-20 03:34:23 +09001653 uint chip;
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +00001654 struct edid1_info edid;
Simon Glass63656b72014-12-10 08:55:48 -07001655 int ret;
1656#ifdef CONFIG_DM_I2C
1657 struct udevice *dev;
1658#endif
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +00001659
1660 if (argc < 2) {
1661 cmd_usage(cmdtp);
1662 return 1;
1663 }
1664
1665 chip = simple_strtoul(argv[1], NULL, 16);
Simon Glass63656b72014-12-10 08:55:48 -07001666#ifdef CONFIG_DM_I2C
1667 ret = i2c_get_cur_bus_chip(chip, &dev);
1668 if (!ret)
Simon Glassf9a4c2d2015-01-12 18:02:07 -07001669 ret = dm_i2c_read(dev, 0, (uchar *)&edid, sizeof(edid));
Simon Glass63656b72014-12-10 08:55:48 -07001670#else
1671 ret = i2c_read(chip, 0, 1, (uchar *)&edid, sizeof(edid));
1672#endif
1673 if (ret)
1674 return i2c_report_err(ret, I2C_ERR_READ);
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +00001675
1676 if (edid_check_info(&edid)) {
1677 puts("Content isn't valid EDID.\n");
1678 return 1;
1679 }
1680
1681 edid_print_info(&edid);
1682 return 0;
1683
1684}
1685#endif /* CONFIG_I2C_EDID */
1686
Simon Glass59aa9df2015-05-04 11:30:57 -06001687#ifdef CONFIG_DM_I2C
1688static void show_bus(struct udevice *bus)
1689{
1690 struct udevice *dev;
1691
1692 printf("Bus %d:\t%s", bus->req_seq, bus->name);
1693 if (device_active(bus))
1694 printf(" (active %d)", bus->seq);
1695 printf("\n");
1696 for (device_find_first_child(bus, &dev);
1697 dev;
1698 device_find_next_child(&dev)) {
1699 struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);
1700
1701 printf(" %02x: %s, offset len %x, flags %x\n",
1702 chip->chip_addr, dev->name, chip->offset_len,
1703 chip->flags);
1704 }
1705}
1706#endif
1707
Marek Vasut06afa382012-11-12 14:34:27 +00001708/**
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001709 * do_i2c_show_bus() - Handle the "i2c bus" command-line command
Marek Vasut06afa382012-11-12 14:34:27 +00001710 * @cmdtp: Command data struct pointer
1711 * @flag: Command flag
1712 * @argc: Command-line argument count
1713 * @argv: Array of command-line arguments
1714 *
1715 * Returns zero always.
1716 */
Simon Glass59aa9df2015-05-04 11:30:57 -06001717#if defined(CONFIG_SYS_I2C) || defined(CONFIG_DM_I2C)
Jeroen Hofstee0e350f82014-06-23 00:22:08 +02001718static int do_i2c_show_bus(cmd_tbl_t *cmdtp, int flag, int argc,
1719 char * const argv[])
Heiko Schocher67b23a32008-10-15 09:39:47 +02001720{
Heiko Schocher67b23a32008-10-15 09:39:47 +02001721 if (argc == 1) {
1722 /* show all busses */
Simon Glass59aa9df2015-05-04 11:30:57 -06001723#ifdef CONFIG_DM_I2C
1724 struct udevice *bus;
1725 struct uclass *uc;
1726 int ret;
1727
1728 ret = uclass_get(UCLASS_I2C, &uc);
1729 if (ret)
1730 return CMD_RET_FAILURE;
1731 uclass_foreach_dev(bus, uc)
1732 show_bus(bus);
1733#else
1734 int i;
1735
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001736 for (i = 0; i < CONFIG_SYS_NUM_I2C_BUSES; i++) {
1737 printf("Bus %d:\t%s", i, I2C_ADAP_NR(i)->name);
1738#ifndef CONFIG_SYS_I2C_DIRECT_BUS
Simon Glass59aa9df2015-05-04 11:30:57 -06001739 int j;
1740
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001741 for (j = 0; j < CONFIG_SYS_I2C_MAX_HOPS; j++) {
1742 if (i2c_bus[i].next_hop[j].chip == 0)
1743 break;
1744 printf("->%s@0x%2x:%d",
1745 i2c_bus[i].next_hop[j].mux.name,
1746 i2c_bus[i].next_hop[j].chip,
1747 i2c_bus[i].next_hop[j].channel);
Heiko Schocher67b23a32008-10-15 09:39:47 +02001748 }
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001749#endif
1750 printf("\n");
Heiko Schocher67b23a32008-10-15 09:39:47 +02001751 }
Simon Glass59aa9df2015-05-04 11:30:57 -06001752#endif
Heiko Schocher67b23a32008-10-15 09:39:47 +02001753 } else {
Simon Glass59aa9df2015-05-04 11:30:57 -06001754 int i;
1755
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001756 /* show specific bus */
1757 i = simple_strtoul(argv[1], NULL, 10);
Simon Glass59aa9df2015-05-04 11:30:57 -06001758#ifdef CONFIG_DM_I2C
1759 struct udevice *bus;
1760 int ret;
1761
1762 ret = uclass_get_device_by_seq(UCLASS_I2C, i, &bus);
1763 if (ret) {
1764 printf("Invalid bus %d: err=%d\n", i, ret);
1765 return CMD_RET_FAILURE;
1766 }
1767 show_bus(bus);
1768#else
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001769 if (i >= CONFIG_SYS_NUM_I2C_BUSES) {
1770 printf("Invalid bus %d\n", i);
1771 return -1;
1772 }
1773 printf("Bus %d:\t%s", i, I2C_ADAP_NR(i)->name);
1774#ifndef CONFIG_SYS_I2C_DIRECT_BUS
Simon Glass59aa9df2015-05-04 11:30:57 -06001775 int j;
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001776 for (j = 0; j < CONFIG_SYS_I2C_MAX_HOPS; j++) {
1777 if (i2c_bus[i].next_hop[j].chip == 0)
1778 break;
1779 printf("->%s@0x%2x:%d",
1780 i2c_bus[i].next_hop[j].mux.name,
1781 i2c_bus[i].next_hop[j].chip,
1782 i2c_bus[i].next_hop[j].channel);
1783 }
1784#endif
1785 printf("\n");
Simon Glass59aa9df2015-05-04 11:30:57 -06001786#endif
Heiko Schocher67b23a32008-10-15 09:39:47 +02001787 }
Heiko Schocher67b23a32008-10-15 09:39:47 +02001788
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001789 return 0;
1790}
1791#endif
1792
Marek Vasut06afa382012-11-12 14:34:27 +00001793/**
1794 * do_i2c_bus_num() - Handle the "i2c dev" command-line command
1795 * @cmdtp: Command data struct pointer
1796 * @flag: Command flag
1797 * @argc: Command-line argument count
1798 * @argv: Array of command-line arguments
1799 *
1800 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
1801 * on error.
1802 */
Simon Glass63656b72014-12-10 08:55:48 -07001803#if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS) || \
1804 defined(CONFIG_DM_I2C)
Jeroen Hofstee0e350f82014-06-23 00:22:08 +02001805static int do_i2c_bus_num(cmd_tbl_t *cmdtp, int flag, int argc,
1806 char * const argv[])
Ben Warrenbb99ad62006-09-07 16:50:54 -04001807{
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001808 int ret = 0;
Simon Glass63656b72014-12-10 08:55:48 -07001809 int bus_no;
Ben Warrenbb99ad62006-09-07 16:50:54 -04001810
Simon Glass63656b72014-12-10 08:55:48 -07001811 if (argc == 1) {
Timur Tabie857a5b2006-11-28 12:09:35 -06001812 /* querying current setting */
Simon Glass63656b72014-12-10 08:55:48 -07001813#ifdef CONFIG_DM_I2C
1814 struct udevice *bus;
1815
1816 if (!i2c_get_cur_bus(&bus))
1817 bus_no = bus->seq;
1818 else
1819 bus_no = -1;
1820#else
1821 bus_no = i2c_get_bus_num();
1822#endif
1823 printf("Current bus is %d\n", bus_no);
1824 } else {
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001825 bus_no = simple_strtoul(argv[1], NULL, 10);
Heiko Schocher880a4122013-08-23 09:39:16 +02001826#if defined(CONFIG_SYS_I2C)
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001827 if (bus_no >= CONFIG_SYS_NUM_I2C_BUSES) {
1828 printf("Invalid bus %d\n", bus_no);
1829 return -1;
1830 }
Heiko Schocher880a4122013-08-23 09:39:16 +02001831#endif
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001832 printf("Setting bus to %d\n", bus_no);
Simon Glassf9a4c2d2015-01-12 18:02:07 -07001833#ifdef CONFIG_DM_I2C
1834 ret = cmd_i2c_set_bus_num(bus_no);
1835#else
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001836 ret = i2c_set_bus_num(bus_no);
Simon Glassf9a4c2d2015-01-12 18:02:07 -07001837#endif
Timur Tabie857a5b2006-11-28 12:09:35 -06001838 if (ret)
Ben Warrenbb99ad62006-09-07 16:50:54 -04001839 printf("Failure changing bus number (%d)\n", ret);
Ben Warrenbb99ad62006-09-07 16:50:54 -04001840 }
Simon Glass4fbd2582015-12-29 05:22:50 -07001841
1842 return ret ? CMD_RET_FAILURE : 0;
Ben Warrenbb99ad62006-09-07 16:50:54 -04001843}
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001844#endif /* defined(CONFIG_SYS_I2C) */
Ben Warrenbb99ad62006-09-07 16:50:54 -04001845
Marek Vasut06afa382012-11-12 14:34:27 +00001846/**
1847 * do_i2c_bus_speed() - Handle the "i2c speed" command-line command
1848 * @cmdtp: Command data struct pointer
1849 * @flag: Command flag
1850 * @argc: Command-line argument count
1851 * @argv: Array of command-line arguments
1852 *
1853 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
1854 * on error.
1855 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001856static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Ben Warrenbb99ad62006-09-07 16:50:54 -04001857{
1858 int speed, ret=0;
1859
Simon Glass63656b72014-12-10 08:55:48 -07001860#ifdef CONFIG_DM_I2C
1861 struct udevice *bus;
1862
1863 if (i2c_get_cur_bus(&bus))
1864 return 1;
1865#endif
1866 if (argc == 1) {
1867#ifdef CONFIG_DM_I2C
Simon Glassca88b9b2015-02-05 21:41:32 -07001868 speed = dm_i2c_get_bus_speed(bus);
Simon Glass63656b72014-12-10 08:55:48 -07001869#else
1870 speed = i2c_get_bus_speed();
1871#endif
Timur Tabie857a5b2006-11-28 12:09:35 -06001872 /* querying current speed */
Simon Glass63656b72014-12-10 08:55:48 -07001873 printf("Current bus speed=%d\n", speed);
1874 } else {
Ben Warrenbb99ad62006-09-07 16:50:54 -04001875 speed = simple_strtoul(argv[1], NULL, 10);
1876 printf("Setting bus speed to %d Hz\n", speed);
Simon Glass63656b72014-12-10 08:55:48 -07001877#ifdef CONFIG_DM_I2C
Simon Glassca88b9b2015-02-05 21:41:32 -07001878 ret = dm_i2c_set_bus_speed(bus, speed);
Simon Glass63656b72014-12-10 08:55:48 -07001879#else
Ben Warrenbb99ad62006-09-07 16:50:54 -04001880 ret = i2c_set_bus_speed(speed);
Simon Glass63656b72014-12-10 08:55:48 -07001881#endif
Timur Tabie857a5b2006-11-28 12:09:35 -06001882 if (ret)
Ben Warrenbb99ad62006-09-07 16:50:54 -04001883 printf("Failure changing bus speed (%d)\n", ret);
Ben Warrenbb99ad62006-09-07 16:50:54 -04001884 }
Simon Glass4fbd2582015-12-29 05:22:50 -07001885
1886 return ret ? CMD_RET_FAILURE : 0;
Ben Warrenbb99ad62006-09-07 16:50:54 -04001887}
1888
Marek Vasut06afa382012-11-12 14:34:27 +00001889/**
1890 * do_i2c_mm() - Handle the "i2c mm" command-line command
1891 * @cmdtp: Command data struct pointer
1892 * @flag: Command flag
1893 * @argc: Command-line argument count
1894 * @argv: Array of command-line arguments
1895 *
1896 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
1897 * on error.
1898 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001899static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001900{
1901 return mod_i2c_mem (cmdtp, 1, flag, argc, argv);
1902}
1903
Marek Vasut06afa382012-11-12 14:34:27 +00001904/**
1905 * do_i2c_nm() - Handle the "i2c nm" command-line command
1906 * @cmdtp: Command data struct pointer
1907 * @flag: Command flag
1908 * @argc: Command-line argument count
1909 * @argv: Array of command-line arguments
1910 *
1911 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
1912 * on error.
1913 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001914static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001915{
1916 return mod_i2c_mem (cmdtp, 0, flag, argc, argv);
1917}
1918
Marek Vasut06afa382012-11-12 14:34:27 +00001919/**
1920 * do_i2c_reset() - Handle the "i2c reset" command-line command
1921 * @cmdtp: Command data struct pointer
1922 * @flag: Command flag
1923 * @argc: Command-line argument count
1924 * @argv: Array of command-line arguments
1925 *
1926 * Returns zero always.
1927 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001928static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001929{
Simon Glass63656b72014-12-10 08:55:48 -07001930#if defined(CONFIG_DM_I2C)
1931 struct udevice *bus;
1932
1933 if (i2c_get_cur_bus(&bus))
1934 return CMD_RET_FAILURE;
1935 if (i2c_deblock(bus)) {
1936 printf("Error: Not supported by the driver\n");
1937 return CMD_RET_FAILURE;
1938 }
1939#elif defined(CONFIG_SYS_I2C)
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001940 i2c_init(I2C_ADAP->speed, I2C_ADAP->slaveaddr);
1941#else
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001942 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001943#endif
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001944 return 0;
1945}
1946
1947static cmd_tbl_t cmd_i2c_sub[] = {
Simon Glass59aa9df2015-05-04 11:30:57 -06001948#if defined(CONFIG_SYS_I2C) || defined(CONFIG_DM_I2C)
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001949 U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_show_bus, "", ""),
Heiko Schocher9a2accb2012-10-25 10:32:14 +02001950#endif
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001951 U_BOOT_CMD_MKENT(crc32, 3, 1, do_i2c_crc, "", ""),
Heiko Schocher3f4978c2012-01-16 21:12:24 +00001952#if defined(CONFIG_SYS_I2C) || \
Simon Glass63656b72014-12-10 08:55:48 -07001953 defined(CONFIG_I2C_MULTI_BUS) || defined(CONFIG_DM_I2C)
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001954 U_BOOT_CMD_MKENT(dev, 1, 1, do_i2c_bus_num, "", ""),
1955#endif /* CONFIG_I2C_MULTI_BUS */
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +00001956#if defined(CONFIG_I2C_EDID)
1957 U_BOOT_CMD_MKENT(edid, 1, 1, do_edid, "", ""),
1958#endif /* CONFIG_I2C_EDID */
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001959 U_BOOT_CMD_MKENT(loop, 3, 1, do_i2c_loop, "", ""),
1960 U_BOOT_CMD_MKENT(md, 3, 1, do_i2c_md, "", ""),
1961 U_BOOT_CMD_MKENT(mm, 2, 1, do_i2c_mm, "", ""),
1962 U_BOOT_CMD_MKENT(mw, 3, 1, do_i2c_mw, "", ""),
1963 U_BOOT_CMD_MKENT(nm, 2, 1, do_i2c_nm, "", ""),
1964 U_BOOT_CMD_MKENT(probe, 0, 1, do_i2c_probe, "", ""),
Frans Meulenbroeks652e5352010-02-25 10:12:16 +01001965 U_BOOT_CMD_MKENT(read, 5, 1, do_i2c_read, "", ""),
Lubomir Popoved16f142015-01-30 19:56:04 +02001966 U_BOOT_CMD_MKENT(write, 6, 0, do_i2c_write, "", ""),
Simon Glass63656b72014-12-10 08:55:48 -07001967#ifdef CONFIG_DM_I2C
1968 U_BOOT_CMD_MKENT(flags, 2, 1, do_i2c_flags, "", ""),
Simon Glassc10c8e32015-08-22 18:31:33 -06001969 U_BOOT_CMD_MKENT(olen, 2, 1, do_i2c_olen, "", ""),
Simon Glass63656b72014-12-10 08:55:48 -07001970#endif
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01001971 U_BOOT_CMD_MKENT(reset, 0, 1, do_i2c_reset, "", ""),
1972#if defined(CONFIG_CMD_SDRAM)
1973 U_BOOT_CMD_MKENT(sdram, 1, 1, do_sdram, "", ""),
1974#endif
1975 U_BOOT_CMD_MKENT(speed, 1, 1, do_i2c_bus_speed, "", ""),
1976};
1977
Michal Simeke4099c82015-12-04 16:56:57 +01001978static __maybe_unused void i2c_reloc(void)
1979{
1980 static int relocated;
1981
1982 if (!relocated) {
1983 fixup_cmdtable(cmd_i2c_sub, ARRAY_SIZE(cmd_i2c_sub));
1984 relocated = 1;
1985 };
Heiko Schocherf1d2b312010-09-17 13:10:39 +02001986}
Heiko Schocherf1d2b312010-09-17 13:10:39 +02001987
Marek Vasut06afa382012-11-12 14:34:27 +00001988/**
1989 * do_i2c() - Handle the "i2c" command-line command
1990 * @cmdtp: Command data struct pointer
1991 * @flag: Command flag
1992 * @argc: Command-line argument count
1993 * @argv: Array of command-line arguments
1994 *
1995 * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
1996 * on error.
1997 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +02001998static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Ben Warrenbb99ad62006-09-07 16:50:54 -04001999{
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01002000 cmd_tbl_t *c;
2001
Michal Simeke4099c82015-12-04 16:56:57 +01002002#ifdef CONFIG_NEEDS_MANUAL_RELOC
2003 i2c_reloc();
2004#endif
2005
Heiko Schocher4444b222010-09-17 13:10:35 +02002006 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +00002007 return CMD_RET_USAGE;
Heiko Schocher4444b222010-09-17 13:10:35 +02002008
Peter Tysere96ad5d2009-04-18 22:34:04 -05002009 /* Strip off leading 'i2c' command argument */
2010 argc--;
2011 argv++;
2012
Frans Meulenbroeksbfc3b772010-02-25 10:12:14 +01002013 c = find_cmd_tbl(argv[0], &cmd_i2c_sub[0], ARRAY_SIZE(cmd_i2c_sub));
2014
Wolfgang Denk47e26b12010-07-17 01:06:04 +02002015 if (c)
Simon Glass4c12eeb2011-12-10 08:44:01 +00002016 return c->cmd(cmdtp, flag, argc, argv);
Wolfgang Denk47e26b12010-07-17 01:06:04 +02002017 else
Simon Glass4c12eeb2011-12-10 08:44:01 +00002018 return CMD_RET_USAGE;
Ben Warrenbb99ad62006-09-07 16:50:54 -04002019}
wdenk8bde7f72003-06-27 21:31:46 +00002020
2021/***************************************************/
Kim Phillips088f1b12012-10-29 13:34:31 +00002022#ifdef CONFIG_SYS_LONGHELP
2023static char i2c_help_text[] =
Simon Glass59aa9df2015-05-04 11:30:57 -06002024#if defined(CONFIG_SYS_I2C) || defined(CONFIG_DM_I2C)
Heiko Schocher3f4978c2012-01-16 21:12:24 +00002025 "bus [muxtype:muxaddr:muxchannel] - show I2C bus info\n"
Heiko Schocher9a2accb2012-10-25 10:32:14 +02002026#endif
Frans Meulenbroeksfb0070e2010-02-25 10:12:15 +01002027 "crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n"
Heiko Schocher3f4978c2012-01-16 21:12:24 +00002028#if defined(CONFIG_SYS_I2C) || \
Simon Glass63656b72014-12-10 08:55:48 -07002029 defined(CONFIG_I2C_MULTI_BUS) || defined(CONFIG_DM_I2C)
Peter Tyser9bc2e4e2008-10-01 12:25:04 -05002030 "i2c dev [dev] - show or set current I2C bus\n"
Matthias Fuchsd9fc7032007-03-08 16:25:47 +01002031#endif /* CONFIG_I2C_MULTI_BUS */
Tom Wai-Hong Tam735987c2012-12-05 14:46:40 +00002032#if defined(CONFIG_I2C_EDID)
2033 "i2c edid chip - print EDID configuration information\n"
2034#endif /* CONFIG_I2C_EDID */
Frans Meulenbroeksfb0070e2010-02-25 10:12:15 +01002035 "i2c loop chip address[.0, .1, .2] [# of objects] - looping read of device\n"
Matthias Fuchsd9fc7032007-03-08 16:25:47 +01002036 "i2c md chip address[.0, .1, .2] [# of objects] - read from I2C device\n"
2037 "i2c mm chip address[.0, .1, .2] - write to I2C device (auto-incrementing)\n"
2038 "i2c mw chip address[.0, .1, .2] value [count] - write to I2C device (fill)\n"
2039 "i2c nm chip address[.0, .1, .2] - write to I2C device (constant address)\n"
Eric Nelson54b99e52012-09-23 10:12:56 +00002040 "i2c probe [address] - test for and show device(s) on the I2C bus\n"
Simon Glass63656b72014-12-10 08:55:48 -07002041 "i2c read chip address[.0, .1, .2] length memaddress - read to memory\n"
Lubomir Popoved16f142015-01-30 19:56:04 +02002042 "i2c write memaddress chip address[.0, .1, .2] length [-s] - write memory\n"
2043 " to I2C; the -s option selects bulk write in a single transaction\n"
Simon Glass63656b72014-12-10 08:55:48 -07002044#ifdef CONFIG_DM_I2C
2045 "i2c flags chip [flags] - set or get chip flags\n"
Simon Glassc10c8e32015-08-22 18:31:33 -06002046 "i2c olen chip [offset_length] - set or get chip offset length\n"
Simon Glass63656b72014-12-10 08:55:48 -07002047#endif
Heiko Schochere43a27c2008-10-15 09:33:30 +02002048 "i2c reset - re-init the I2C Controller\n"
Jon Loeligerc76fe472007-07-08 18:02:23 -05002049#if defined(CONFIG_CMD_SDRAM)
Frans Meulenbroeksfb0070e2010-02-25 10:12:15 +01002050 "i2c sdram chip - print SDRAM configuration information\n"
Jon Loeliger90253172007-07-10 11:02:44 -05002051#endif
Kim Phillips088f1b12012-10-29 13:34:31 +00002052 "i2c speed [speed] - show or set I2C bus speed";
2053#endif
2054
2055U_BOOT_CMD(
Lubomir Popoved16f142015-01-30 19:56:04 +02002056 i2c, 7, 1, do_i2c,
Kim Phillips088f1b12012-10-29 13:34:31 +00002057 "I2C sub-system",
2058 i2c_help_text
Matthias Fuchsd9fc7032007-03-08 16:25:47 +01002059);