wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2001 |
| 3 | * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * I2C Functions similar to the standard memory functions. |
| 26 | * |
| 27 | * There are several parameters in many of the commands that bear further |
| 28 | * explanations: |
| 29 | * |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 30 | * {i2c_chip} is the I2C chip address (the first byte sent on the bus). |
| 31 | * Each I2C chip on the bus has a unique address. On the I2C data bus, |
| 32 | * the address is the upper seven bits and the LSB is the "read/write" |
| 33 | * bit. Note that the {i2c_chip} address specified on the command |
| 34 | * line is not shifted up: e.g. a typical EEPROM memory chip may have |
| 35 | * an I2C address of 0x50, but the data put on the bus will be 0xA0 |
| 36 | * for write and 0xA1 for read. This "non shifted" address notation |
| 37 | * matches at least half of the data sheets :-/. |
| 38 | * |
| 39 | * {addr} is the address (or offset) within the chip. Small memory |
| 40 | * chips have 8 bit addresses. Large memory chips have 16 bit |
| 41 | * addresses. Other memory chips have 9, 10, or 11 bit addresses. |
| 42 | * Many non-memory chips have multiple registers and {addr} is used |
| 43 | * as the register index. Some non-memory chips have only one register |
| 44 | * and therefore don't need any {addr} parameter. |
| 45 | * |
| 46 | * The default {addr} parameter is one byte (.1) which works well for |
| 47 | * memories and registers with 8 bits of address space. |
| 48 | * |
| 49 | * You can specify the length of the {addr} field with the optional .0, |
| 50 | * .1, or .2 modifier (similar to the .b, .w, .l modifier). If you are |
| 51 | * manipulating a single register device which doesn't use an address |
| 52 | * field, use "0.0" for the address and the ".0" length field will |
| 53 | * suppress the address in the I2C data stream. This also works for |
| 54 | * successive reads using the I2C auto-incrementing memory pointer. |
| 55 | * |
| 56 | * If you are manipulating a large memory with 2-byte addresses, use |
| 57 | * the .2 address modifier, e.g. 210.2 addresses location 528 (decimal). |
| 58 | * |
| 59 | * Then there are the unfortunate memory chips that spill the most |
| 60 | * significant 1, 2, or 3 bits of address into the chip address byte. |
| 61 | * This effectively makes one chip (logically) look like 2, 4, or |
| 62 | * 8 chips. This is handled (awkwardly) by #defining |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 63 | * CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW and using the .1 modifier on the |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 64 | * {addr} field (since .1 is the default, it doesn't actually have to |
| 65 | * be specified). Examples: given a memory chip at I2C chip address |
| 66 | * 0x50, the following would happen... |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 67 | * i2c md 50 0 10 display 16 bytes starting at 0x000 |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 68 | * On the bus: <S> A0 00 <E> <S> A1 <rd> ... <rd> |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 69 | * i2c md 50 100 10 display 16 bytes starting at 0x100 |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 70 | * On the bus: <S> A2 00 <E> <S> A3 <rd> ... <rd> |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 71 | * i2c md 50 210 10 display 16 bytes starting at 0x210 |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 72 | * On the bus: <S> A4 10 <E> <S> A5 <rd> ... <rd> |
| 73 | * This is awfully ugly. It would be nice if someone would think up |
| 74 | * a better way of handling this. |
| 75 | * |
| 76 | * Adapted from cmd_mem.c which is copyright Wolfgang Denk (wd@denx.de). |
| 77 | */ |
| 78 | |
| 79 | #include <common.h> |
| 80 | #include <command.h> |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 81 | #include <environment.h> |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 82 | #include <i2c.h> |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 83 | #include <malloc.h> |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 84 | #include <asm/byteorder.h> |
Marek Vasut | 2515d84 | 2012-11-12 14:34:25 +0000 | [diff] [blame^] | 85 | #include <linux/compiler.h> |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 86 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 87 | /* Display values from last command. |
| 88 | * Memory modify remembered values are different from display memory. |
| 89 | */ |
| 90 | static uchar i2c_dp_last_chip; |
| 91 | static uint i2c_dp_last_addr; |
| 92 | static uint i2c_dp_last_alen; |
| 93 | static uint i2c_dp_last_length = 0x10; |
| 94 | |
| 95 | static uchar i2c_mm_last_chip; |
| 96 | static uint i2c_mm_last_addr; |
| 97 | static uint i2c_mm_last_alen; |
| 98 | |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 99 | /* If only one I2C bus is present, the list of devices to ignore when |
| 100 | * the probe command is issued is represented by a 1D array of addresses. |
| 101 | * When multiple buses are present, the list is an array of bus-address |
| 102 | * pairs. The following macros take care of this */ |
| 103 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 104 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 105 | #if defined(CONFIG_I2C_MULTI_BUS) |
| 106 | static struct |
| 107 | { |
| 108 | uchar bus; |
| 109 | uchar addr; |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 110 | } i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES; |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 111 | #define GET_BUS_NUM i2c_get_bus_num() |
| 112 | #define COMPARE_BUS(b,i) (i2c_no_probes[(i)].bus == (b)) |
| 113 | #define COMPARE_ADDR(a,i) (i2c_no_probes[(i)].addr == (a)) |
| 114 | #define NO_PROBE_ADDR(i) i2c_no_probes[(i)].addr |
| 115 | #else /* single bus */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 116 | static uchar i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES; |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 117 | #define GET_BUS_NUM 0 |
| 118 | #define COMPARE_BUS(b,i) ((b) == 0) /* Make compiler happy */ |
| 119 | #define COMPARE_ADDR(a,i) (i2c_no_probes[(i)] == (a)) |
| 120 | #define NO_PROBE_ADDR(i) i2c_no_probes[(i)] |
| 121 | #endif /* CONFIG_MULTI_BUS */ |
| 122 | |
| 123 | #define NUM_ELEMENTS_NOPROBE (sizeof(i2c_no_probes)/sizeof(i2c_no_probes[0])) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 124 | #endif |
| 125 | |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 126 | #if defined(CONFIG_I2C_MUX) |
| 127 | static I2C_MUX_DEVICE *i2c_mux_devices = NULL; |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 128 | static int i2c_mux_busid = CONFIG_SYS_MAX_I2C_BUS; |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 129 | |
| 130 | DECLARE_GLOBAL_DATA_PTR; |
| 131 | |
| 132 | #endif |
| 133 | |
Frans Meulenbroeks | a266fe9 | 2010-03-26 09:46:40 +0100 | [diff] [blame] | 134 | #define DISP_LINE_LEN 16 |
| 135 | |
Stefan Bigler | c649dda | 2011-04-08 16:24:08 +0200 | [diff] [blame] | 136 | /* implement possible board specific board init */ |
Marek Vasut | 2515d84 | 2012-11-12 14:34:25 +0000 | [diff] [blame^] | 137 | __weak |
| 138 | void i2c_init_board(void) |
Stefan Bigler | c649dda | 2011-04-08 16:24:08 +0200 | [diff] [blame] | 139 | { |
| 140 | return; |
| 141 | } |
Stefan Bigler | c649dda | 2011-04-08 16:24:08 +0200 | [diff] [blame] | 142 | |
Peter Tyser | 655b34a | 2009-04-18 22:34:01 -0500 | [diff] [blame] | 143 | /* TODO: Implement architecture-specific get/set functions */ |
Marek Vasut | 2515d84 | 2012-11-12 14:34:25 +0000 | [diff] [blame^] | 144 | __weak |
| 145 | unsigned int i2c_get_bus_speed(void) |
Peter Tyser | 655b34a | 2009-04-18 22:34:01 -0500 | [diff] [blame] | 146 | { |
| 147 | return CONFIG_SYS_I2C_SPEED; |
| 148 | } |
Peter Tyser | 655b34a | 2009-04-18 22:34:01 -0500 | [diff] [blame] | 149 | |
Marek Vasut | 2515d84 | 2012-11-12 14:34:25 +0000 | [diff] [blame^] | 150 | __weak |
| 151 | int i2c_set_bus_speed(unsigned int speed) |
Peter Tyser | 655b34a | 2009-04-18 22:34:01 -0500 | [diff] [blame] | 152 | { |
| 153 | if (speed != CONFIG_SYS_I2C_SPEED) |
| 154 | return -1; |
| 155 | |
| 156 | return 0; |
| 157 | } |
Peter Tyser | 655b34a | 2009-04-18 22:34:01 -0500 | [diff] [blame] | 158 | |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 159 | /* |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 160 | * get_alen: small parser helper function to get address length |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 161 | * returns the address length |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 162 | */ |
| 163 | static uint get_alen(char *arg) |
| 164 | { |
| 165 | int j; |
| 166 | int alen; |
| 167 | |
| 168 | alen = 1; |
| 169 | for (j = 0; j < 8; j++) { |
| 170 | if (arg[j] == '.') { |
| 171 | alen = arg[j+1] - '0'; |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 172 | break; |
| 173 | } else if (arg[j] == '\0') |
| 174 | break; |
| 175 | } |
| 176 | return alen; |
| 177 | } |
| 178 | |
| 179 | /* |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 180 | * Syntax: |
| 181 | * i2c read {i2c_chip} {devaddr}{.0, .1, .2} {len} {memaddr} |
| 182 | */ |
| 183 | |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 184 | static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 185 | { |
| 186 | u_char chip; |
| 187 | uint devaddr, alen, length; |
| 188 | u_char *memaddr; |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 189 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 190 | if (argc != 5) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 191 | return CMD_RET_USAGE; |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 192 | |
| 193 | /* |
| 194 | * I2C chip address |
| 195 | */ |
| 196 | chip = simple_strtoul(argv[1], NULL, 16); |
| 197 | |
| 198 | /* |
| 199 | * I2C data address within the chip. This can be 1 or |
| 200 | * 2 bytes long. Some day it might be 3 bytes long :-). |
| 201 | */ |
| 202 | devaddr = simple_strtoul(argv[2], NULL, 16); |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 203 | alen = get_alen(argv[2]); |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 204 | if (alen > 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 205 | return CMD_RET_USAGE; |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 206 | |
| 207 | /* |
| 208 | * Length is the number of objects, not number of bytes. |
| 209 | */ |
| 210 | length = simple_strtoul(argv[3], NULL, 16); |
| 211 | |
| 212 | /* |
| 213 | * memaddr is the address where to store things in memory |
| 214 | */ |
| 215 | memaddr = (u_char *)simple_strtoul(argv[4], NULL, 16); |
| 216 | |
| 217 | if (i2c_read(chip, devaddr, alen, memaddr, length) != 0) { |
| 218 | puts ("Error reading the chip.\n"); |
| 219 | return 1; |
| 220 | } |
| 221 | return 0; |
| 222 | } |
| 223 | |
York Sun | ff5d2dc | 2012-09-16 08:02:30 +0000 | [diff] [blame] | 224 | static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| 225 | { |
| 226 | u_char chip; |
| 227 | uint devaddr, alen, length; |
| 228 | u_char *memaddr; |
| 229 | |
| 230 | if (argc != 5) |
| 231 | return cmd_usage(cmdtp); |
| 232 | |
| 233 | /* |
| 234 | * memaddr is the address where to store things in memory |
| 235 | */ |
| 236 | memaddr = (u_char *)simple_strtoul(argv[1], NULL, 16); |
| 237 | |
| 238 | /* |
| 239 | * I2C chip address |
| 240 | */ |
| 241 | chip = simple_strtoul(argv[2], NULL, 16); |
| 242 | |
| 243 | /* |
| 244 | * I2C data address within the chip. This can be 1 or |
| 245 | * 2 bytes long. Some day it might be 3 bytes long :-). |
| 246 | */ |
| 247 | devaddr = simple_strtoul(argv[3], NULL, 16); |
| 248 | alen = get_alen(argv[3]); |
| 249 | if (alen > 3) |
| 250 | return cmd_usage(cmdtp); |
| 251 | |
| 252 | /* |
| 253 | * Length is the number of objects, not number of bytes. |
| 254 | */ |
| 255 | length = simple_strtoul(argv[4], NULL, 16); |
| 256 | |
| 257 | while (length-- > 0) { |
| 258 | if (i2c_write(chip, devaddr++, alen, memaddr++, 1) != 0) { |
| 259 | puts("Error writing to the chip.\n"); |
| 260 | return 1; |
| 261 | } |
| 262 | /* |
| 263 | * No write delay with FRAM devices. |
| 264 | */ |
| 265 | #if !defined(CONFIG_SYS_I2C_FRAM) |
| 266 | udelay(11000); |
| 267 | #endif |
| 268 | } |
| 269 | return 0; |
| 270 | } |
| 271 | |
Frans Meulenbroeks | 4a8cf33 | 2010-03-26 09:46:39 +0100 | [diff] [blame] | 272 | /* |
| 273 | * Syntax: |
| 274 | * i2c md {i2c_chip} {addr}{.0, .1, .2} {len} |
| 275 | */ |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 276 | static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 277 | { |
| 278 | u_char chip; |
| 279 | uint addr, alen, length; |
| 280 | int j, nbytes, linebytes; |
| 281 | |
| 282 | /* We use the last specified parameters, unless new ones are |
| 283 | * entered. |
| 284 | */ |
| 285 | chip = i2c_dp_last_chip; |
| 286 | addr = i2c_dp_last_addr; |
| 287 | alen = i2c_dp_last_alen; |
| 288 | length = i2c_dp_last_length; |
| 289 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 290 | if (argc < 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 291 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 292 | |
| 293 | if ((flag & CMD_FLAG_REPEAT) == 0) { |
| 294 | /* |
| 295 | * New command specified. |
| 296 | */ |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 297 | |
| 298 | /* |
| 299 | * I2C chip address |
| 300 | */ |
| 301 | chip = simple_strtoul(argv[1], NULL, 16); |
| 302 | |
| 303 | /* |
| 304 | * I2C data address within the chip. This can be 1 or |
| 305 | * 2 bytes long. Some day it might be 3 bytes long :-). |
| 306 | */ |
| 307 | addr = simple_strtoul(argv[2], NULL, 16); |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 308 | alen = get_alen(argv[2]); |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 309 | if (alen > 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 310 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 311 | |
| 312 | /* |
| 313 | * If another parameter, it is the length to display. |
| 314 | * Length is the number of objects, not number of bytes. |
| 315 | */ |
| 316 | if (argc > 3) |
| 317 | length = simple_strtoul(argv[3], NULL, 16); |
| 318 | } |
| 319 | |
| 320 | /* |
| 321 | * Print the lines. |
| 322 | * |
| 323 | * We buffer all read data, so we can make sure data is read only |
| 324 | * once. |
| 325 | */ |
| 326 | nbytes = length; |
| 327 | do { |
| 328 | unsigned char linebuf[DISP_LINE_LEN]; |
| 329 | unsigned char *cp; |
| 330 | |
| 331 | linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes; |
| 332 | |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 333 | if (i2c_read(chip, addr, alen, linebuf, linebytes) != 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 334 | puts ("Error reading the chip.\n"); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 335 | else { |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 336 | printf("%04x:", addr); |
| 337 | cp = linebuf; |
| 338 | for (j=0; j<linebytes; j++) { |
| 339 | printf(" %02x", *cp++); |
| 340 | addr++; |
| 341 | } |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 342 | puts (" "); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 343 | cp = linebuf; |
| 344 | for (j=0; j<linebytes; j++) { |
| 345 | if ((*cp < 0x20) || (*cp > 0x7e)) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 346 | puts ("."); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 347 | else |
| 348 | printf("%c", *cp); |
| 349 | cp++; |
| 350 | } |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 351 | putc ('\n'); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 352 | } |
| 353 | nbytes -= linebytes; |
| 354 | } while (nbytes > 0); |
| 355 | |
| 356 | i2c_dp_last_chip = chip; |
| 357 | i2c_dp_last_addr = addr; |
| 358 | i2c_dp_last_alen = alen; |
| 359 | i2c_dp_last_length = length; |
| 360 | |
| 361 | return 0; |
| 362 | } |
| 363 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 364 | |
| 365 | /* Write (fill) memory |
| 366 | * |
| 367 | * Syntax: |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 368 | * i2c mw {i2c_chip} {addr}{.0, .1, .2} {data} [{count}] |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 369 | */ |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 370 | static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 371 | { |
| 372 | uchar chip; |
| 373 | ulong addr; |
| 374 | uint alen; |
| 375 | uchar byte; |
| 376 | int count; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 377 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 378 | if ((argc < 4) || (argc > 5)) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 379 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 380 | |
| 381 | /* |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 382 | * Chip is always specified. |
| 383 | */ |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 384 | chip = simple_strtoul(argv[1], NULL, 16); |
| 385 | |
| 386 | /* |
| 387 | * Address is always specified. |
| 388 | */ |
| 389 | addr = simple_strtoul(argv[2], NULL, 16); |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 390 | alen = get_alen(argv[2]); |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 391 | if (alen > 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 392 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 393 | |
| 394 | /* |
| 395 | * Value to write is always specified. |
| 396 | */ |
| 397 | byte = simple_strtoul(argv[3], NULL, 16); |
| 398 | |
| 399 | /* |
| 400 | * Optional count |
| 401 | */ |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 402 | if (argc == 5) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 403 | count = simple_strtoul(argv[4], NULL, 16); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 404 | else |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 405 | count = 1; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 406 | |
| 407 | while (count-- > 0) { |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 408 | if (i2c_write(chip, addr++, alen, &byte, 1) != 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 409 | puts ("Error writing the chip.\n"); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 410 | /* |
| 411 | * Wait for the write to complete. The write can take |
| 412 | * up to 10mSec (we allow a little more time). |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 413 | */ |
| d4f5c72 | 2005-08-12 21:16:13 +0200 | [diff] [blame] | 414 | /* |
| 415 | * No write delay with FRAM devices. |
| 416 | */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 417 | #if !defined(CONFIG_SYS_I2C_FRAM) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 418 | udelay(11000); |
| d4f5c72 | 2005-08-12 21:16:13 +0200 | [diff] [blame] | 419 | #endif |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | return (0); |
| 423 | } |
| 424 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 425 | /* Calculate a CRC on memory |
| 426 | * |
| 427 | * Syntax: |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 428 | * i2c crc32 {i2c_chip} {addr}{.0, .1, .2} {count} |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 429 | */ |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 430 | static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 431 | { |
| 432 | uchar chip; |
| 433 | ulong addr; |
| 434 | uint alen; |
| 435 | int count; |
| 436 | uchar byte; |
| 437 | ulong crc; |
| 438 | ulong err; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 439 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 440 | if (argc < 4) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 441 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 442 | |
| 443 | /* |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 444 | * Chip is always specified. |
| 445 | */ |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 446 | chip = simple_strtoul(argv[1], NULL, 16); |
| 447 | |
| 448 | /* |
| 449 | * Address is always specified. |
| 450 | */ |
| 451 | addr = simple_strtoul(argv[2], NULL, 16); |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 452 | alen = get_alen(argv[2]); |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 453 | if (alen > 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 454 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 455 | |
| 456 | /* |
| 457 | * Count is always specified |
| 458 | */ |
| 459 | count = simple_strtoul(argv[3], NULL, 16); |
| 460 | |
| 461 | printf ("CRC32 for %08lx ... %08lx ==> ", addr, addr + count - 1); |
| 462 | /* |
| 463 | * CRC a byte at a time. This is going to be slooow, but hey, the |
| 464 | * memories are small and slow too so hopefully nobody notices. |
| 465 | */ |
| 466 | crc = 0; |
| 467 | err = 0; |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 468 | while (count-- > 0) { |
| 469 | if (i2c_read(chip, addr, alen, &byte, 1) != 0) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 470 | err++; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 471 | crc = crc32 (crc, &byte, 1); |
| 472 | addr++; |
| 473 | } |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 474 | if (err > 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 475 | puts ("Error reading the chip,\n"); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 476 | else |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 477 | printf ("%08lx\n", crc); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 478 | |
| 479 | return 0; |
| 480 | } |
| 481 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 482 | /* Modify memory. |
| 483 | * |
| 484 | * Syntax: |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 485 | * i2c mm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2} |
| 486 | * i2c nm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2} |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 487 | */ |
| 488 | |
| 489 | static int |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 490 | mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 491 | { |
| 492 | uchar chip; |
| 493 | ulong addr; |
| 494 | uint alen; |
| 495 | ulong data; |
| 496 | int size = 1; |
| 497 | int nbytes; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 498 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 499 | if (argc != 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 500 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 501 | |
| 502 | #ifdef CONFIG_BOOT_RETRY_TIME |
| 503 | reset_cmd_timeout(); /* got a good command to get here */ |
| 504 | #endif |
| 505 | /* |
| 506 | * We use the last specified parameters, unless new ones are |
| 507 | * entered. |
| 508 | */ |
| 509 | chip = i2c_mm_last_chip; |
| 510 | addr = i2c_mm_last_addr; |
| 511 | alen = i2c_mm_last_alen; |
| 512 | |
| 513 | if ((flag & CMD_FLAG_REPEAT) == 0) { |
| 514 | /* |
| 515 | * New command specified. Check for a size specification. |
| 516 | * Defaults to byte if no or incorrect specification. |
| 517 | */ |
| 518 | size = cmd_get_data_size(argv[0], 1); |
| 519 | |
| 520 | /* |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 521 | * Chip is always specified. |
| 522 | */ |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 523 | chip = simple_strtoul(argv[1], NULL, 16); |
| 524 | |
| 525 | /* |
| 526 | * Address is always specified. |
| 527 | */ |
| 528 | addr = simple_strtoul(argv[2], NULL, 16); |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 529 | alen = get_alen(argv[2]); |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 530 | if (alen > 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 531 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 532 | } |
| 533 | |
| 534 | /* |
| 535 | * Print the address, followed by value. Then accept input for |
| 536 | * the next value. A non-converted value exits. |
| 537 | */ |
| 538 | do { |
| 539 | printf("%08lx:", addr); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 540 | if (i2c_read(chip, addr, alen, (uchar *)&data, size) != 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 541 | puts ("\nError reading the chip,\n"); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 542 | else { |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 543 | data = cpu_to_be32(data); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 544 | if (size == 1) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 545 | printf(" %02lx", (data >> 24) & 0x000000FF); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 546 | else if (size == 2) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 547 | printf(" %04lx", (data >> 16) & 0x0000FFFF); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 548 | else |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 549 | printf(" %08lx", data); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | nbytes = readline (" ? "); |
| 553 | if (nbytes == 0) { |
| 554 | /* |
| 555 | * <CR> pressed as only input, don't modify current |
| 556 | * location and move to next. |
| 557 | */ |
| 558 | if (incrflag) |
| 559 | addr += size; |
| 560 | nbytes = size; |
| 561 | #ifdef CONFIG_BOOT_RETRY_TIME |
| 562 | reset_cmd_timeout(); /* good enough to not time out */ |
| 563 | #endif |
| 564 | } |
| 565 | #ifdef CONFIG_BOOT_RETRY_TIME |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 566 | else if (nbytes == -2) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 567 | break; /* timed out, exit the command */ |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 568 | #endif |
| 569 | else { |
| 570 | char *endp; |
| 571 | |
| 572 | data = simple_strtoul(console_buffer, &endp, 16); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 573 | if (size == 1) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 574 | data = data << 24; |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 575 | else if (size == 2) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 576 | data = data << 16; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 577 | data = be32_to_cpu(data); |
| 578 | nbytes = endp - console_buffer; |
| 579 | if (nbytes) { |
| 580 | #ifdef CONFIG_BOOT_RETRY_TIME |
| 581 | /* |
| 582 | * good enough to not time out |
| 583 | */ |
| 584 | reset_cmd_timeout(); |
| 585 | #endif |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 586 | if (i2c_write(chip, addr, alen, (uchar *)&data, size) != 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 587 | puts ("Error writing the chip.\n"); |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 588 | #ifdef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS |
| 589 | udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000); |
wdenk | 2535d60 | 2003-07-17 23:16:40 +0000 | [diff] [blame] | 590 | #endif |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 591 | if (incrflag) |
| 592 | addr += size; |
| 593 | } |
| 594 | } |
| 595 | } while (nbytes); |
| 596 | |
Peter Tyser | 0800707 | 2008-08-15 14:36:32 -0500 | [diff] [blame] | 597 | i2c_mm_last_chip = chip; |
| 598 | i2c_mm_last_addr = addr; |
| 599 | i2c_mm_last_alen = alen; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 600 | |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | /* |
| 605 | * Syntax: |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 606 | * i2c probe {addr} |
| 607 | * |
| 608 | * Returns zero (success) if one or more I2C devices was found |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 609 | */ |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 610 | static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 611 | { |
| 612 | int j; |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 613 | int addr = -1; |
| 614 | int found = 0; |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 615 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 616 | int k, skip; |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 617 | uchar bus = GET_BUS_NUM; |
| 618 | #endif /* NOPROBES */ |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 619 | |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 620 | if (argc == 2) |
| 621 | addr = simple_strtol(argv[1], 0, 16); |
| 622 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 623 | puts ("Valid chip addresses:"); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 624 | for (j = 0; j < 128; j++) { |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 625 | if ((0 <= addr) && (j != addr)) |
| 626 | continue; |
| 627 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 628 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 629 | skip = 0; |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 630 | for (k=0; k < NUM_ELEMENTS_NOPROBE; k++) { |
| 631 | if (COMPARE_BUS(bus, k) && COMPARE_ADDR(j, k)) { |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 632 | skip = 1; |
| 633 | break; |
| 634 | } |
| 635 | } |
| 636 | if (skip) |
| 637 | continue; |
| 638 | #endif |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 639 | if (i2c_probe(j) == 0) { |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 640 | printf(" %02X", j); |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 641 | found++; |
| 642 | } |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 643 | } |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 644 | putc ('\n'); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 645 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 646 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 647 | puts ("Excluded chip addresses:"); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 648 | for (k=0; k < NUM_ELEMENTS_NOPROBE; k++) { |
| 649 | if (COMPARE_BUS(bus,k)) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 650 | printf(" %02X", NO_PROBE_ADDR(k)); |
| 651 | } |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 652 | putc ('\n'); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 653 | #endif |
| 654 | |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 655 | return (0 == found); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 656 | } |
| 657 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 658 | /* |
| 659 | * Syntax: |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 660 | * i2c loop {i2c_chip} {addr}{.0, .1, .2} [{length}] [{delay}] |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 661 | * {length} - Number of bytes to read |
| 662 | * {delay} - A DECIMAL number and defaults to 1000 uSec |
| 663 | */ |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 664 | static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 665 | { |
| 666 | u_char chip; |
| 667 | ulong alen; |
| 668 | uint addr; |
| 669 | uint length; |
| 670 | u_char bytes[16]; |
| 671 | int delay; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 672 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 673 | if (argc < 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 674 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 675 | |
| 676 | /* |
| 677 | * Chip is always specified. |
| 678 | */ |
| 679 | chip = simple_strtoul(argv[1], NULL, 16); |
| 680 | |
| 681 | /* |
| 682 | * Address is always specified. |
| 683 | */ |
| 684 | addr = simple_strtoul(argv[2], NULL, 16); |
Frans Meulenbroeks | 2c0dc99 | 2010-03-26 09:46:41 +0100 | [diff] [blame] | 685 | alen = get_alen(argv[2]); |
Reinhard Meyer | 7a92e53 | 2010-08-25 14:41:16 +0200 | [diff] [blame] | 686 | if (alen > 3) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 687 | return CMD_RET_USAGE; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 688 | |
| 689 | /* |
| 690 | * Length is the number of objects, not number of bytes. |
| 691 | */ |
| 692 | length = 1; |
| 693 | length = simple_strtoul(argv[3], NULL, 16); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 694 | if (length > sizeof(bytes)) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 695 | length = sizeof(bytes); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 696 | |
| 697 | /* |
| 698 | * The delay time (uSec) is optional. |
| 699 | */ |
| 700 | delay = 1000; |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 701 | if (argc > 3) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 702 | delay = simple_strtoul(argv[4], NULL, 10); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 703 | /* |
| 704 | * Run the loop... |
| 705 | */ |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 706 | while (1) { |
| 707 | if (i2c_read(chip, addr, alen, bytes, length) != 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 708 | puts ("Error reading the chip.\n"); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 709 | udelay(delay); |
| 710 | } |
| 711 | |
| 712 | /* NOTREACHED */ |
| 713 | return 0; |
| 714 | } |
| 715 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 716 | /* |
| 717 | * The SDRAM command is separately configured because many |
| 718 | * (most?) embedded boards don't use SDRAM DIMMs. |
| 719 | */ |
Jon Loeliger | c76fe47 | 2007-07-08 18:02:23 -0500 | [diff] [blame] | 720 | #if defined(CONFIG_CMD_SDRAM) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 721 | static void print_ddr2_tcyc (u_char const b) |
| 722 | { |
| 723 | printf ("%d.", (b >> 4) & 0x0F); |
| 724 | switch (b & 0x0F) { |
| 725 | case 0x0: |
| 726 | case 0x1: |
| 727 | case 0x2: |
| 728 | case 0x3: |
| 729 | case 0x4: |
| 730 | case 0x5: |
| 731 | case 0x6: |
| 732 | case 0x7: |
| 733 | case 0x8: |
| 734 | case 0x9: |
| 735 | printf ("%d ns\n", b & 0x0F); |
| 736 | break; |
| 737 | case 0xA: |
| 738 | puts ("25 ns\n"); |
| 739 | break; |
| 740 | case 0xB: |
| 741 | puts ("33 ns\n"); |
| 742 | break; |
| 743 | case 0xC: |
| 744 | puts ("66 ns\n"); |
| 745 | break; |
| 746 | case 0xD: |
| 747 | puts ("75 ns\n"); |
| 748 | break; |
| 749 | default: |
| 750 | puts ("?? ns\n"); |
| 751 | break; |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | static void decode_bits (u_char const b, char const *str[], int const do_once) |
| 756 | { |
| 757 | u_char mask; |
| 758 | |
| 759 | for (mask = 0x80; mask != 0x00; mask >>= 1, ++str) { |
| 760 | if (b & mask) { |
| 761 | puts (*str); |
| 762 | if (do_once) |
| 763 | return; |
| 764 | } |
| 765 | } |
| 766 | } |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 767 | |
| 768 | /* |
| 769 | * Syntax: |
Peter Tyser | 0f89c54 | 2009-04-18 22:34:03 -0500 | [diff] [blame] | 770 | * i2c sdram {i2c_chip} |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 771 | */ |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 772 | static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 773 | { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 774 | enum { unknown, EDO, SDRAM, DDR2 } type; |
| 775 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 776 | u_char chip; |
| 777 | u_char data[128]; |
| 778 | u_char cksum; |
| 779 | int j; |
| 780 | |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 781 | static const char *decode_CAS_DDR2[] = { |
| 782 | " TBD", " 6", " 5", " 4", " 3", " 2", " TBD", " TBD" |
| 783 | }; |
| 784 | |
| 785 | static const char *decode_CAS_default[] = { |
| 786 | " TBD", " 7", " 6", " 5", " 4", " 3", " 2", " 1" |
| 787 | }; |
| 788 | |
| 789 | static const char *decode_CS_WE_default[] = { |
| 790 | " TBD", " 6", " 5", " 4", " 3", " 2", " 1", " 0" |
| 791 | }; |
| 792 | |
| 793 | static const char *decode_byte21_default[] = { |
| 794 | " TBD (bit 7)\n", |
| 795 | " Redundant row address\n", |
| 796 | " Differential clock input\n", |
| 797 | " Registerd DQMB inputs\n", |
| 798 | " Buffered DQMB inputs\n", |
| 799 | " On-card PLL\n", |
| 800 | " Registered address/control lines\n", |
| 801 | " Buffered address/control lines\n" |
| 802 | }; |
| 803 | |
| 804 | static const char *decode_byte22_DDR2[] = { |
| 805 | " TBD (bit 7)\n", |
| 806 | " TBD (bit 6)\n", |
| 807 | " TBD (bit 5)\n", |
| 808 | " TBD (bit 4)\n", |
| 809 | " TBD (bit 3)\n", |
| 810 | " Supports partial array self refresh\n", |
| 811 | " Supports 50 ohm ODT\n", |
| 812 | " Supports weak driver\n" |
| 813 | }; |
| 814 | |
| 815 | static const char *decode_row_density_DDR2[] = { |
| 816 | "512 MiB", "256 MiB", "128 MiB", "16 GiB", |
| 817 | "8 GiB", "4 GiB", "2 GiB", "1 GiB" |
| 818 | }; |
| 819 | |
| 820 | static const char *decode_row_density_default[] = { |
| 821 | "512 MiB", "256 MiB", "128 MiB", "64 MiB", |
| 822 | "32 MiB", "16 MiB", "8 MiB", "4 MiB" |
| 823 | }; |
| 824 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 825 | if (argc < 2) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 826 | return CMD_RET_USAGE; |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 827 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 828 | /* |
| 829 | * Chip is always specified. |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 830 | */ |
| 831 | chip = simple_strtoul (argv[1], NULL, 16); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 832 | |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 833 | if (i2c_read (chip, 0, 1, data, sizeof (data)) != 0) { |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 834 | puts ("No SDRAM Serial Presence Detect found.\n"); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 835 | return 1; |
| 836 | } |
| 837 | |
| 838 | cksum = 0; |
| 839 | for (j = 0; j < 63; j++) { |
| 840 | cksum += data[j]; |
| 841 | } |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 842 | if (cksum != data[63]) { |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 843 | printf ("WARNING: Configuration data checksum failure:\n" |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 844 | " is 0x%02x, calculated 0x%02x\n", data[63], cksum); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 845 | } |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 846 | printf ("SPD data revision %d.%d\n", |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 847 | (data[62] >> 4) & 0x0F, data[62] & 0x0F); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 848 | printf ("Bytes used 0x%02X\n", data[0]); |
| 849 | printf ("Serial memory size 0x%02X\n", 1 << data[1]); |
| 850 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 851 | puts ("Memory type "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 852 | switch (data[2]) { |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 853 | case 2: |
| 854 | type = EDO; |
| 855 | puts ("EDO\n"); |
| 856 | break; |
| 857 | case 4: |
| 858 | type = SDRAM; |
| 859 | puts ("SDRAM\n"); |
| 860 | break; |
| 861 | case 8: |
| 862 | type = DDR2; |
| 863 | puts ("DDR2\n"); |
| 864 | break; |
| 865 | default: |
| 866 | type = unknown; |
| 867 | puts ("unknown\n"); |
| 868 | break; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 869 | } |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 870 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 871 | puts ("Row address bits "); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 872 | if ((data[3] & 0x00F0) == 0) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 873 | printf ("%d\n", data[3] & 0x0F); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 874 | else |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 875 | printf ("%d/%d\n", data[3] & 0x0F, (data[3] >> 4) & 0x0F); |
| 876 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 877 | puts ("Column address bits "); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 878 | if ((data[4] & 0x00F0) == 0) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 879 | printf ("%d\n", data[4] & 0x0F); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 880 | else |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 881 | printf ("%d/%d\n", data[4] & 0x0F, (data[4] >> 4) & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 882 | |
| 883 | switch (type) { |
| 884 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 885 | printf ("Number of ranks %d\n", |
| 886 | (data[5] & 0x07) + 1); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 887 | break; |
| 888 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 889 | printf ("Module rows %d\n", data[5]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 890 | break; |
| 891 | } |
| 892 | |
| 893 | switch (type) { |
| 894 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 895 | printf ("Module data width %d bits\n", data[6]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 896 | break; |
| 897 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 898 | printf ("Module data width %d bits\n", |
| 899 | (data[7] << 8) | data[6]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 900 | break; |
| 901 | } |
| 902 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 903 | puts ("Interface signal levels "); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 904 | switch(data[8]) { |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 905 | case 0: puts ("TTL 5.0 V\n"); break; |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 906 | case 1: puts ("LVTTL\n"); break; |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 907 | case 2: puts ("HSTL 1.5 V\n"); break; |
| 908 | case 3: puts ("SSTL 3.3 V\n"); break; |
| 909 | case 4: puts ("SSTL 2.5 V\n"); break; |
| 910 | case 5: puts ("SSTL 1.8 V\n"); break; |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 911 | default: puts ("unknown\n"); break; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 912 | } |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 913 | |
| 914 | switch (type) { |
| 915 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 916 | printf ("SDRAM cycle time "); |
| 917 | print_ddr2_tcyc (data[9]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 918 | break; |
| 919 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 920 | printf ("SDRAM cycle time %d.%d ns\n", |
| 921 | (data[9] >> 4) & 0x0F, data[9] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 922 | break; |
| 923 | } |
| 924 | |
| 925 | switch (type) { |
| 926 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 927 | printf ("SDRAM access time 0.%d%d ns\n", |
| 928 | (data[10] >> 4) & 0x0F, data[10] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 929 | break; |
| 930 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 931 | printf ("SDRAM access time %d.%d ns\n", |
| 932 | (data[10] >> 4) & 0x0F, data[10] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 933 | break; |
| 934 | } |
| 935 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 936 | puts ("EDC configuration "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 937 | switch (data[11]) { |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 938 | case 0: puts ("None\n"); break; |
| 939 | case 1: puts ("Parity\n"); break; |
| 940 | case 2: puts ("ECC\n"); break; |
| 941 | default: puts ("unknown\n"); break; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 942 | } |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 943 | |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 944 | if ((data[12] & 0x80) == 0) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 945 | puts ("No self refresh, rate "); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 946 | else |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 947 | puts ("Self refresh, rate "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 948 | |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 949 | switch(data[12] & 0x7F) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 950 | case 0: puts ("15.625 us\n"); break; |
| 951 | case 1: puts ("3.9 us\n"); break; |
| 952 | case 2: puts ("7.8 us\n"); break; |
| 953 | case 3: puts ("31.3 us\n"); break; |
| 954 | case 4: puts ("62.5 us\n"); break; |
| 955 | case 5: puts ("125 us\n"); break; |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 956 | default: puts ("unknown\n"); break; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 957 | } |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 958 | |
| 959 | switch (type) { |
| 960 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 961 | printf ("SDRAM width (primary) %d\n", data[13]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 962 | break; |
| 963 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 964 | printf ("SDRAM width (primary) %d\n", data[13] & 0x7F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 965 | if ((data[13] & 0x80) != 0) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 966 | printf (" (second bank) %d\n", |
| 967 | 2 * (data[13] & 0x7F)); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 968 | } |
| 969 | break; |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 970 | } |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 971 | |
| 972 | switch (type) { |
| 973 | case DDR2: |
| 974 | if (data[14] != 0) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 975 | printf ("EDC width %d\n", data[14]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 976 | break; |
| 977 | default: |
| 978 | if (data[14] != 0) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 979 | printf ("EDC width %d\n", |
| 980 | data[14] & 0x7F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 981 | |
| 982 | if ((data[14] & 0x80) != 0) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 983 | printf (" (second bank) %d\n", |
| 984 | 2 * (data[14] & 0x7F)); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 985 | } |
| 986 | } |
| 987 | break; |
| 988 | } |
| 989 | |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 990 | if (DDR2 != type) { |
| 991 | printf ("Min clock delay, back-to-back random column addresses " |
| 992 | "%d\n", data[15]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 993 | } |
| 994 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 995 | puts ("Burst length(s) "); |
| 996 | if (data[16] & 0x80) puts (" Page"); |
| 997 | if (data[16] & 0x08) puts (" 8"); |
| 998 | if (data[16] & 0x04) puts (" 4"); |
| 999 | if (data[16] & 0x02) puts (" 2"); |
| 1000 | if (data[16] & 0x01) puts (" 1"); |
| 1001 | putc ('\n'); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1002 | printf ("Number of banks %d\n", data[17]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1003 | |
| 1004 | switch (type) { |
| 1005 | case DDR2: |
| 1006 | puts ("CAS latency(s) "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1007 | decode_bits (data[18], decode_CAS_DDR2, 0); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1008 | putc ('\n'); |
| 1009 | break; |
| 1010 | default: |
| 1011 | puts ("CAS latency(s) "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1012 | decode_bits (data[18], decode_CAS_default, 0); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1013 | putc ('\n'); |
| 1014 | break; |
| 1015 | } |
| 1016 | |
| 1017 | if (DDR2 != type) { |
| 1018 | puts ("CS latency(s) "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1019 | decode_bits (data[19], decode_CS_WE_default, 0); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1020 | putc ('\n'); |
| 1021 | } |
| 1022 | |
| 1023 | if (DDR2 != type) { |
| 1024 | puts ("WE latency(s) "); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1025 | decode_bits (data[20], decode_CS_WE_default, 0); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1026 | putc ('\n'); |
| 1027 | } |
| 1028 | |
| 1029 | switch (type) { |
| 1030 | case DDR2: |
| 1031 | puts ("Module attributes:\n"); |
| 1032 | if (data[21] & 0x80) |
| 1033 | puts (" TBD (bit 7)\n"); |
| 1034 | if (data[21] & 0x40) |
| 1035 | puts (" Analysis probe installed\n"); |
| 1036 | if (data[21] & 0x20) |
| 1037 | puts (" TBD (bit 5)\n"); |
| 1038 | if (data[21] & 0x10) |
| 1039 | puts (" FET switch external enable\n"); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1040 | printf (" %d PLLs on DIMM\n", (data[21] >> 2) & 0x03); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1041 | if (data[20] & 0x11) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1042 | printf (" %d active registers on DIMM\n", |
| 1043 | (data[21] & 0x03) + 1); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1044 | } |
| 1045 | break; |
| 1046 | default: |
| 1047 | puts ("Module attributes:\n"); |
| 1048 | if (!data[21]) |
| 1049 | puts (" (none)\n"); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1050 | else |
| 1051 | decode_bits (data[21], decode_byte21_default, 0); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1052 | break; |
| 1053 | } |
| 1054 | |
| 1055 | switch (type) { |
| 1056 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1057 | decode_bits (data[22], decode_byte22_DDR2, 0); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1058 | break; |
| 1059 | default: |
| 1060 | puts ("Device attributes:\n"); |
| 1061 | if (data[22] & 0x80) puts (" TBD (bit 7)\n"); |
| 1062 | if (data[22] & 0x40) puts (" TBD (bit 6)\n"); |
| 1063 | if (data[22] & 0x20) puts (" Upper Vcc tolerance 5%\n"); |
| 1064 | else puts (" Upper Vcc tolerance 10%\n"); |
| 1065 | if (data[22] & 0x10) puts (" Lower Vcc tolerance 5%\n"); |
| 1066 | else puts (" Lower Vcc tolerance 10%\n"); |
| 1067 | if (data[22] & 0x08) puts (" Supports write1/read burst\n"); |
| 1068 | if (data[22] & 0x04) puts (" Supports precharge all\n"); |
| 1069 | if (data[22] & 0x02) puts (" Supports auto precharge\n"); |
| 1070 | if (data[22] & 0x01) puts (" Supports early RAS# precharge\n"); |
| 1071 | break; |
| 1072 | } |
| 1073 | |
| 1074 | switch (type) { |
| 1075 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1076 | printf ("SDRAM cycle time (2nd highest CAS latency) "); |
| 1077 | print_ddr2_tcyc (data[23]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1078 | break; |
| 1079 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1080 | printf ("SDRAM cycle time (2nd highest CAS latency) %d." |
| 1081 | "%d ns\n", (data[23] >> 4) & 0x0F, data[23] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1082 | break; |
| 1083 | } |
| 1084 | |
| 1085 | switch (type) { |
| 1086 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1087 | printf ("SDRAM access from clock (2nd highest CAS latency) 0." |
| 1088 | "%d%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1089 | break; |
| 1090 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1091 | printf ("SDRAM access from clock (2nd highest CAS latency) %d." |
| 1092 | "%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1093 | break; |
| 1094 | } |
| 1095 | |
| 1096 | switch (type) { |
| 1097 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1098 | printf ("SDRAM cycle time (3rd highest CAS latency) "); |
| 1099 | print_ddr2_tcyc (data[25]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1100 | break; |
| 1101 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1102 | printf ("SDRAM cycle time (3rd highest CAS latency) %d." |
| 1103 | "%d ns\n", (data[25] >> 4) & 0x0F, data[25] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1104 | break; |
| 1105 | } |
| 1106 | |
| 1107 | switch (type) { |
| 1108 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1109 | printf ("SDRAM access from clock (3rd highest CAS latency) 0." |
| 1110 | "%d%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1111 | break; |
| 1112 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1113 | printf ("SDRAM access from clock (3rd highest CAS latency) %d." |
| 1114 | "%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1115 | break; |
| 1116 | } |
| 1117 | |
| 1118 | switch (type) { |
| 1119 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1120 | printf ("Minimum row precharge %d.%02d ns\n", |
| 1121 | (data[27] >> 2) & 0x3F, 25 * (data[27] & 0x03)); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1122 | break; |
| 1123 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1124 | printf ("Minimum row precharge %d ns\n", data[27]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1125 | break; |
| 1126 | } |
| 1127 | |
| 1128 | switch (type) { |
| 1129 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1130 | printf ("Row active to row active min %d.%02d ns\n", |
| 1131 | (data[28] >> 2) & 0x3F, 25 * (data[28] & 0x03)); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1132 | break; |
| 1133 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1134 | printf ("Row active to row active min %d ns\n", data[28]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1135 | break; |
| 1136 | } |
| 1137 | |
| 1138 | switch (type) { |
| 1139 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1140 | printf ("RAS to CAS delay min %d.%02d ns\n", |
| 1141 | (data[29] >> 2) & 0x3F, 25 * (data[29] & 0x03)); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1142 | break; |
| 1143 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1144 | printf ("RAS to CAS delay min %d ns\n", data[29]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1145 | break; |
| 1146 | } |
| 1147 | |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1148 | printf ("Minimum RAS pulse width %d ns\n", data[30]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1149 | |
| 1150 | switch (type) { |
| 1151 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1152 | puts ("Density of each row "); |
| 1153 | decode_bits (data[31], decode_row_density_DDR2, 1); |
| 1154 | putc ('\n'); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1155 | break; |
| 1156 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1157 | puts ("Density of each row "); |
| 1158 | decode_bits (data[31], decode_row_density_default, 1); |
| 1159 | putc ('\n'); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1160 | break; |
| 1161 | } |
| 1162 | |
| 1163 | switch (type) { |
| 1164 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1165 | puts ("Command and Address setup "); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1166 | if (data[32] >= 0xA0) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1167 | printf ("1.%d%d ns\n", |
| 1168 | ((data[32] >> 4) & 0x0F) - 10, data[32] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1169 | } else { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1170 | printf ("0.%d%d ns\n", |
| 1171 | ((data[32] >> 4) & 0x0F), data[32] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1172 | } |
| 1173 | break; |
| 1174 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1175 | printf ("Command and Address setup %c%d.%d ns\n", |
| 1176 | (data[32] & 0x80) ? '-' : '+', |
| 1177 | (data[32] >> 4) & 0x07, data[32] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1178 | break; |
| 1179 | } |
| 1180 | |
| 1181 | switch (type) { |
| 1182 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1183 | puts ("Command and Address hold "); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1184 | if (data[33] >= 0xA0) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1185 | printf ("1.%d%d ns\n", |
| 1186 | ((data[33] >> 4) & 0x0F) - 10, data[33] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1187 | } else { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1188 | printf ("0.%d%d ns\n", |
| 1189 | ((data[33] >> 4) & 0x0F), data[33] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1190 | } |
| 1191 | break; |
| 1192 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1193 | printf ("Command and Address hold %c%d.%d ns\n", |
| 1194 | (data[33] & 0x80) ? '-' : '+', |
| 1195 | (data[33] >> 4) & 0x07, data[33] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1196 | break; |
| 1197 | } |
| 1198 | |
| 1199 | switch (type) { |
| 1200 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1201 | printf ("Data signal input setup 0.%d%d ns\n", |
| 1202 | (data[34] >> 4) & 0x0F, data[34] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1203 | break; |
| 1204 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1205 | printf ("Data signal input setup %c%d.%d ns\n", |
| 1206 | (data[34] & 0x80) ? '-' : '+', |
| 1207 | (data[34] >> 4) & 0x07, data[34] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1208 | break; |
| 1209 | } |
| 1210 | |
| 1211 | switch (type) { |
| 1212 | case DDR2: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1213 | printf ("Data signal input hold 0.%d%d ns\n", |
| 1214 | (data[35] >> 4) & 0x0F, data[35] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1215 | break; |
| 1216 | default: |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1217 | printf ("Data signal input hold %c%d.%d ns\n", |
| 1218 | (data[35] & 0x80) ? '-' : '+', |
| 1219 | (data[35] >> 4) & 0x07, data[35] & 0x0F); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1220 | break; |
| 1221 | } |
| 1222 | |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1223 | puts ("Manufacturer's JEDEC ID "); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1224 | for (j = 64; j <= 71; j++) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1225 | printf ("%02X ", data[j]); |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1226 | putc ('\n'); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1227 | printf ("Manufacturing Location %02X\n", data[72]); |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1228 | puts ("Manufacturer's Part Number "); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1229 | for (j = 73; j <= 90; j++) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1230 | printf ("%02X ", data[j]); |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1231 | putc ('\n'); |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1232 | printf ("Revision Code %02X %02X\n", data[91], data[92]); |
| 1233 | printf ("Manufacturing Date %02X %02X\n", data[93], data[94]); |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1234 | puts ("Assembly Serial Number "); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1235 | for (j = 95; j <= 98; j++) |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1236 | printf ("%02X ", data[j]); |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1237 | putc ('\n'); |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 1238 | |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1239 | if (DDR2 != type) { |
Larry Johnson | 632de06 | 2008-01-11 23:26:18 -0500 | [diff] [blame] | 1240 | printf ("Speed rating PC%d\n", |
| 1241 | data[126] == 0x66 ? 66 : data[126]); |
Larry Johnson | 0df6b84 | 2008-01-10 22:23:39 -0500 | [diff] [blame] | 1242 | } |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 1243 | return 0; |
| 1244 | } |
Jon Loeliger | 9025317 | 2007-07-10 11:02:44 -0500 | [diff] [blame] | 1245 | #endif |
wdenk | 81a8824 | 2002-10-26 15:22:42 +0000 | [diff] [blame] | 1246 | |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1247 | #if defined(CONFIG_I2C_MUX) |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1248 | static int do_i2c_add_bus(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1249 | { |
| 1250 | int ret=0; |
| 1251 | |
| 1252 | if (argc == 1) { |
| 1253 | /* show all busses */ |
| 1254 | I2C_MUX *mux; |
| 1255 | I2C_MUX_DEVICE *device = i2c_mux_devices; |
| 1256 | |
| 1257 | printf ("Busses reached over muxes:\n"); |
| 1258 | while (device != NULL) { |
| 1259 | printf ("Bus ID: %x\n", device->busid); |
| 1260 | printf (" reached over Mux(es):\n"); |
| 1261 | mux = device->mux; |
| 1262 | while (mux != NULL) { |
| 1263 | printf (" %s@%x ch: %x\n", mux->name, mux->chip, mux->channel); |
| 1264 | mux = mux->next; |
| 1265 | } |
| 1266 | device = device->next; |
| 1267 | } |
| 1268 | } else { |
Wolfgang Denk | e8260cb | 2011-11-04 15:55:54 +0000 | [diff] [blame] | 1269 | (void)i2c_mux_ident_muxstring ((uchar *)argv[1]); |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1270 | ret = 0; |
| 1271 | } |
| 1272 | return ret; |
| 1273 | } |
| 1274 | #endif /* CONFIG_I2C_MUX */ |
| 1275 | |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1276 | #if defined(CONFIG_I2C_MULTI_BUS) |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1277 | static int do_i2c_bus_num(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1278 | { |
| 1279 | int bus_idx, ret=0; |
| 1280 | |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1281 | if (argc == 1) |
| 1282 | /* querying current setting */ |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1283 | printf("Current bus is %d\n", i2c_get_bus_num()); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1284 | else { |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1285 | bus_idx = simple_strtoul(argv[1], NULL, 10); |
| 1286 | printf("Setting bus to %d\n", bus_idx); |
| 1287 | ret = i2c_set_bus_num(bus_idx); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1288 | if (ret) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1289 | printf("Failure changing bus number (%d)\n", ret); |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1290 | } |
| 1291 | return ret; |
| 1292 | } |
| 1293 | #endif /* CONFIG_I2C_MULTI_BUS */ |
| 1294 | |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1295 | static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1296 | { |
| 1297 | int speed, ret=0; |
| 1298 | |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1299 | if (argc == 1) |
| 1300 | /* querying current speed */ |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1301 | printf("Current bus speed=%d\n", i2c_get_bus_speed()); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1302 | else { |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1303 | speed = simple_strtoul(argv[1], NULL, 10); |
| 1304 | printf("Setting bus speed to %d Hz\n", speed); |
| 1305 | ret = i2c_set_bus_speed(speed); |
Timur Tabi | e857a5b | 2006-11-28 12:09:35 -0600 | [diff] [blame] | 1306 | if (ret) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1307 | printf("Failure changing bus speed (%d)\n", ret); |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1308 | } |
| 1309 | return ret; |
| 1310 | } |
| 1311 | |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1312 | static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Frans Meulenbroeks | bfc3b77 | 2010-02-25 10:12:14 +0100 | [diff] [blame] | 1313 | { |
| 1314 | return mod_i2c_mem (cmdtp, 1, flag, argc, argv); |
| 1315 | } |
| 1316 | |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1317 | static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Frans Meulenbroeks | bfc3b77 | 2010-02-25 10:12:14 +0100 | [diff] [blame] | 1318 | { |
| 1319 | return mod_i2c_mem (cmdtp, 0, flag, argc, argv); |
| 1320 | } |
| 1321 | |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1322 | static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Frans Meulenbroeks | bfc3b77 | 2010-02-25 10:12:14 +0100 | [diff] [blame] | 1323 | { |
| 1324 | i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
| 1325 | return 0; |
| 1326 | } |
| 1327 | |
| 1328 | static cmd_tbl_t cmd_i2c_sub[] = { |
| 1329 | #if defined(CONFIG_I2C_MUX) |
| 1330 | U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_add_bus, "", ""), |
| 1331 | #endif /* CONFIG_I2C_MUX */ |
| 1332 | U_BOOT_CMD_MKENT(crc32, 3, 1, do_i2c_crc, "", ""), |
| 1333 | #if defined(CONFIG_I2C_MULTI_BUS) |
| 1334 | U_BOOT_CMD_MKENT(dev, 1, 1, do_i2c_bus_num, "", ""), |
| 1335 | #endif /* CONFIG_I2C_MULTI_BUS */ |
| 1336 | U_BOOT_CMD_MKENT(loop, 3, 1, do_i2c_loop, "", ""), |
| 1337 | U_BOOT_CMD_MKENT(md, 3, 1, do_i2c_md, "", ""), |
| 1338 | U_BOOT_CMD_MKENT(mm, 2, 1, do_i2c_mm, "", ""), |
| 1339 | U_BOOT_CMD_MKENT(mw, 3, 1, do_i2c_mw, "", ""), |
| 1340 | U_BOOT_CMD_MKENT(nm, 2, 1, do_i2c_nm, "", ""), |
| 1341 | U_BOOT_CMD_MKENT(probe, 0, 1, do_i2c_probe, "", ""), |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 1342 | U_BOOT_CMD_MKENT(read, 5, 1, do_i2c_read, "", ""), |
York Sun | ff5d2dc | 2012-09-16 08:02:30 +0000 | [diff] [blame] | 1343 | U_BOOT_CMD_MKENT(write, 5, 0, do_i2c_write, "", ""), |
Frans Meulenbroeks | bfc3b77 | 2010-02-25 10:12:14 +0100 | [diff] [blame] | 1344 | U_BOOT_CMD_MKENT(reset, 0, 1, do_i2c_reset, "", ""), |
| 1345 | #if defined(CONFIG_CMD_SDRAM) |
| 1346 | U_BOOT_CMD_MKENT(sdram, 1, 1, do_sdram, "", ""), |
| 1347 | #endif |
| 1348 | U_BOOT_CMD_MKENT(speed, 1, 1, do_i2c_bus_speed, "", ""), |
| 1349 | }; |
| 1350 | |
Wolfgang Denk | 2e5167c | 2010-10-28 20:00:11 +0200 | [diff] [blame] | 1351 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
Heiko Schocher | f1d2b31 | 2010-09-17 13:10:39 +0200 | [diff] [blame] | 1352 | void i2c_reloc(void) { |
| 1353 | fixup_cmdtable(cmd_i2c_sub, ARRAY_SIZE(cmd_i2c_sub)); |
| 1354 | } |
| 1355 | #endif |
| 1356 | |
Wolfgang Denk | 54841ab | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 1357 | static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1358 | { |
Frans Meulenbroeks | bfc3b77 | 2010-02-25 10:12:14 +0100 | [diff] [blame] | 1359 | cmd_tbl_t *c; |
| 1360 | |
Heiko Schocher | 4444b22 | 2010-09-17 13:10:35 +0200 | [diff] [blame] | 1361 | if (argc < 2) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 1362 | return CMD_RET_USAGE; |
Heiko Schocher | 4444b22 | 2010-09-17 13:10:35 +0200 | [diff] [blame] | 1363 | |
Peter Tyser | e96ad5d | 2009-04-18 22:34:04 -0500 | [diff] [blame] | 1364 | /* Strip off leading 'i2c' command argument */ |
| 1365 | argc--; |
| 1366 | argv++; |
| 1367 | |
Frans Meulenbroeks | bfc3b77 | 2010-02-25 10:12:14 +0100 | [diff] [blame] | 1368 | c = find_cmd_tbl(argv[0], &cmd_i2c_sub[0], ARRAY_SIZE(cmd_i2c_sub)); |
| 1369 | |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 1370 | if (c) |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 1371 | return c->cmd(cmdtp, flag, argc, argv); |
Wolfgang Denk | 47e26b1 | 2010-07-17 01:06:04 +0200 | [diff] [blame] | 1372 | else |
Simon Glass | 4c12eeb | 2011-12-10 08:44:01 +0000 | [diff] [blame] | 1373 | return CMD_RET_USAGE; |
Ben Warren | bb99ad6 | 2006-09-07 16:50:54 -0400 | [diff] [blame] | 1374 | } |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 1375 | |
| 1376 | /***************************************************/ |
Kim Phillips | 088f1b1 | 2012-10-29 13:34:31 +0000 | [diff] [blame] | 1377 | #ifdef CONFIG_SYS_LONGHELP |
| 1378 | static char i2c_help_text[] = |
Peter Tyser | 9166b77 | 2009-04-18 22:34:06 -0500 | [diff] [blame] | 1379 | #if defined(CONFIG_I2C_MUX) |
Frans Meulenbroeks | fb0070e | 2010-02-25 10:12:15 +0100 | [diff] [blame] | 1380 | "bus [muxtype:muxaddr:muxchannel] - add a new bus reached over muxes\ni2c " |
Peter Tyser | 9166b77 | 2009-04-18 22:34:06 -0500 | [diff] [blame] | 1381 | #endif /* CONFIG_I2C_MUX */ |
Frans Meulenbroeks | fb0070e | 2010-02-25 10:12:15 +0100 | [diff] [blame] | 1382 | "crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n" |
Matthias Fuchs | d9fc703 | 2007-03-08 16:25:47 +0100 | [diff] [blame] | 1383 | #if defined(CONFIG_I2C_MULTI_BUS) |
Peter Tyser | 9bc2e4e | 2008-10-01 12:25:04 -0500 | [diff] [blame] | 1384 | "i2c dev [dev] - show or set current I2C bus\n" |
Matthias Fuchs | d9fc703 | 2007-03-08 16:25:47 +0100 | [diff] [blame] | 1385 | #endif /* CONFIG_I2C_MULTI_BUS */ |
Frans Meulenbroeks | fb0070e | 2010-02-25 10:12:15 +0100 | [diff] [blame] | 1386 | "i2c loop chip address[.0, .1, .2] [# of objects] - looping read of device\n" |
Matthias Fuchs | d9fc703 | 2007-03-08 16:25:47 +0100 | [diff] [blame] | 1387 | "i2c md chip address[.0, .1, .2] [# of objects] - read from I2C device\n" |
| 1388 | "i2c mm chip address[.0, .1, .2] - write to I2C device (auto-incrementing)\n" |
| 1389 | "i2c mw chip address[.0, .1, .2] value [count] - write to I2C device (fill)\n" |
| 1390 | "i2c nm chip address[.0, .1, .2] - write to I2C device (constant address)\n" |
Eric Nelson | 54b99e5 | 2012-09-23 10:12:56 +0000 | [diff] [blame] | 1391 | "i2c probe [address] - test for and show device(s) on the I2C bus\n" |
Frans Meulenbroeks | 652e535 | 2010-02-25 10:12:16 +0100 | [diff] [blame] | 1392 | "i2c read chip address[.0, .1, .2] length memaddress - read to memory \n" |
York Sun | ff5d2dc | 2012-09-16 08:02:30 +0000 | [diff] [blame] | 1393 | "i2c write memaddress chip address[.0, .1, .2] length - write memory to i2c\n" |
Heiko Schocher | e43a27c | 2008-10-15 09:33:30 +0200 | [diff] [blame] | 1394 | "i2c reset - re-init the I2C Controller\n" |
Jon Loeliger | c76fe47 | 2007-07-08 18:02:23 -0500 | [diff] [blame] | 1395 | #if defined(CONFIG_CMD_SDRAM) |
Frans Meulenbroeks | fb0070e | 2010-02-25 10:12:15 +0100 | [diff] [blame] | 1396 | "i2c sdram chip - print SDRAM configuration information\n" |
Jon Loeliger | 9025317 | 2007-07-10 11:02:44 -0500 | [diff] [blame] | 1397 | #endif |
Kim Phillips | 088f1b1 | 2012-10-29 13:34:31 +0000 | [diff] [blame] | 1398 | "i2c speed [speed] - show or set I2C bus speed"; |
| 1399 | #endif |
| 1400 | |
| 1401 | U_BOOT_CMD( |
| 1402 | i2c, 6, 1, do_i2c, |
| 1403 | "I2C sub-system", |
| 1404 | i2c_help_text |
Matthias Fuchs | d9fc703 | 2007-03-08 16:25:47 +0100 | [diff] [blame] | 1405 | ); |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1406 | |
| 1407 | #if defined(CONFIG_I2C_MUX) |
Frans Meulenbroeks | fd03ea8 | 2010-03-26 09:46:42 +0100 | [diff] [blame] | 1408 | static int i2c_mux_add_device(I2C_MUX_DEVICE *dev) |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1409 | { |
| 1410 | I2C_MUX_DEVICE *devtmp = i2c_mux_devices; |
| 1411 | |
| 1412 | if (i2c_mux_devices == NULL) { |
| 1413 | i2c_mux_devices = dev; |
| 1414 | return 0; |
| 1415 | } |
| 1416 | while (devtmp->next != NULL) |
| 1417 | devtmp = devtmp->next; |
| 1418 | |
| 1419 | devtmp->next = dev; |
| 1420 | return 0; |
| 1421 | } |
| 1422 | |
| 1423 | I2C_MUX_DEVICE *i2c_mux_search_device(int id) |
| 1424 | { |
| 1425 | I2C_MUX_DEVICE *device = i2c_mux_devices; |
| 1426 | |
| 1427 | while (device != NULL) { |
| 1428 | if (device->busid == id) |
| 1429 | return device; |
| 1430 | device = device->next; |
| 1431 | } |
| 1432 | return NULL; |
| 1433 | } |
| 1434 | |
| 1435 | /* searches in the buf from *pos the next ':'. |
| 1436 | * returns: |
| 1437 | * 0 if found (with *pos = where) |
| 1438 | * < 0 if an error occured |
| 1439 | * > 0 if the end of buf is reached |
| 1440 | */ |
| 1441 | static int i2c_mux_search_next (int *pos, uchar *buf, int len) |
| 1442 | { |
| 1443 | while ((buf[*pos] != ':') && (*pos < len)) { |
| 1444 | *pos += 1; |
| 1445 | } |
| 1446 | if (*pos >= len) |
| 1447 | return 1; |
| 1448 | if (buf[*pos] != ':') |
| 1449 | return -1; |
| 1450 | return 0; |
| 1451 | } |
| 1452 | |
| 1453 | static int i2c_mux_get_busid (void) |
| 1454 | { |
| 1455 | int tmp = i2c_mux_busid; |
| 1456 | |
| 1457 | i2c_mux_busid ++; |
| 1458 | return tmp; |
| 1459 | } |
| 1460 | |
Michael Jones | f9a78b8 | 2011-07-14 22:09:28 +0000 | [diff] [blame] | 1461 | /* Analyses a Muxstring and immediately sends the |
| 1462 | commands to the muxes. Runs from flash. |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1463 | */ |
| 1464 | int i2c_mux_ident_muxstring_f (uchar *buf) |
| 1465 | { |
| 1466 | int pos = 0; |
| 1467 | int oldpos; |
| 1468 | int ret = 0; |
| 1469 | int len = strlen((char *)buf); |
| 1470 | int chip; |
| 1471 | uchar channel; |
| 1472 | int was = 0; |
| 1473 | |
| 1474 | while (ret == 0) { |
| 1475 | oldpos = pos; |
| 1476 | /* search name */ |
| 1477 | ret = i2c_mux_search_next(&pos, buf, len); |
| 1478 | if (ret != 0) |
| 1479 | printf ("ERROR\n"); |
| 1480 | /* search address */ |
| 1481 | pos ++; |
| 1482 | oldpos = pos; |
| 1483 | ret = i2c_mux_search_next(&pos, buf, len); |
| 1484 | if (ret != 0) |
| 1485 | printf ("ERROR\n"); |
| 1486 | buf[pos] = 0; |
| 1487 | chip = simple_strtoul((char *)&buf[oldpos], NULL, 16); |
| 1488 | buf[pos] = ':'; |
| 1489 | /* search channel */ |
| 1490 | pos ++; |
| 1491 | oldpos = pos; |
| 1492 | ret = i2c_mux_search_next(&pos, buf, len); |
| 1493 | if (ret < 0) |
| 1494 | printf ("ERROR\n"); |
| 1495 | was = 0; |
| 1496 | if (buf[pos] != 0) { |
| 1497 | buf[pos] = 0; |
| 1498 | was = 1; |
| 1499 | } |
| 1500 | channel = simple_strtoul((char *)&buf[oldpos], NULL, 16); |
| 1501 | if (was) |
| 1502 | buf[pos] = ':'; |
| 1503 | if (i2c_write(chip, 0, 0, &channel, 1) != 0) { |
| 1504 | printf ("Error setting Mux: chip:%x channel: \ |
| 1505 | %x\n", chip, channel); |
| 1506 | return -1; |
| 1507 | } |
| 1508 | pos ++; |
| 1509 | oldpos = pos; |
| 1510 | |
| 1511 | } |
Holger Brunck | 8ec038a | 2012-06-28 04:30:22 +0000 | [diff] [blame] | 1512 | i2c_init_board(); |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1513 | |
| 1514 | return 0; |
| 1515 | } |
| 1516 | |
| 1517 | /* Analyses a Muxstring and if this String is correct |
| 1518 | * adds a new I2C Bus. |
| 1519 | */ |
| 1520 | I2C_MUX_DEVICE *i2c_mux_ident_muxstring (uchar *buf) |
| 1521 | { |
| 1522 | I2C_MUX_DEVICE *device; |
| 1523 | I2C_MUX *mux; |
| 1524 | int pos = 0; |
| 1525 | int oldpos; |
| 1526 | int ret = 0; |
| 1527 | int len = strlen((char *)buf); |
| 1528 | int was = 0; |
| 1529 | |
| 1530 | device = (I2C_MUX_DEVICE *)malloc (sizeof(I2C_MUX_DEVICE)); |
| 1531 | device->mux = NULL; |
| 1532 | device->busid = i2c_mux_get_busid (); |
| 1533 | device->next = NULL; |
| 1534 | while (ret == 0) { |
| 1535 | mux = (I2C_MUX *)malloc (sizeof(I2C_MUX)); |
| 1536 | mux->next = NULL; |
| 1537 | /* search name of mux */ |
| 1538 | oldpos = pos; |
| 1539 | ret = i2c_mux_search_next(&pos, buf, len); |
| 1540 | if (ret != 0) |
| 1541 | printf ("%s no name.\n", __FUNCTION__); |
| 1542 | mux->name = (char *)malloc (pos - oldpos + 1); |
| 1543 | memcpy (mux->name, &buf[oldpos], pos - oldpos); |
| 1544 | mux->name[pos - oldpos] = 0; |
| 1545 | /* search address */ |
| 1546 | pos ++; |
| 1547 | oldpos = pos; |
| 1548 | ret = i2c_mux_search_next(&pos, buf, len); |
| 1549 | if (ret != 0) |
| 1550 | printf ("%s no mux address.\n", __FUNCTION__); |
| 1551 | buf[pos] = 0; |
| 1552 | mux->chip = simple_strtoul((char *)&buf[oldpos], NULL, 16); |
| 1553 | buf[pos] = ':'; |
| 1554 | /* search channel */ |
| 1555 | pos ++; |
| 1556 | oldpos = pos; |
| 1557 | ret = i2c_mux_search_next(&pos, buf, len); |
| 1558 | if (ret < 0) |
| 1559 | printf ("%s no mux channel.\n", __FUNCTION__); |
| 1560 | was = 0; |
| 1561 | if (buf[pos] != 0) { |
| 1562 | buf[pos] = 0; |
| 1563 | was = 1; |
| 1564 | } |
| 1565 | mux->channel = simple_strtoul((char *)&buf[oldpos], NULL, 16); |
| 1566 | if (was) |
| 1567 | buf[pos] = ':'; |
| 1568 | if (device->mux == NULL) |
| 1569 | device->mux = mux; |
| 1570 | else { |
| 1571 | I2C_MUX *muxtmp = device->mux; |
| 1572 | while (muxtmp->next != NULL) { |
| 1573 | muxtmp = muxtmp->next; |
| 1574 | } |
| 1575 | muxtmp->next = mux; |
| 1576 | } |
| 1577 | pos ++; |
| 1578 | oldpos = pos; |
| 1579 | } |
| 1580 | if (ret > 0) { |
| 1581 | /* Add Device */ |
| 1582 | i2c_mux_add_device (device); |
| 1583 | return device; |
| 1584 | } |
| 1585 | |
| 1586 | return NULL; |
| 1587 | } |
| 1588 | |
| 1589 | int i2x_mux_select_mux(int bus) |
| 1590 | { |
| 1591 | I2C_MUX_DEVICE *dev; |
| 1592 | I2C_MUX *mux; |
| 1593 | |
| 1594 | if ((gd->flags & GD_FLG_RELOC) != GD_FLG_RELOC) { |
| 1595 | /* select Default Mux Bus */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1596 | #if defined(CONFIG_SYS_I2C_IVM_BUS) |
| 1597 | i2c_mux_ident_muxstring_f ((uchar *)CONFIG_SYS_I2C_IVM_BUS); |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1598 | #else |
| 1599 | { |
| 1600 | unsigned char *buf; |
| 1601 | buf = (unsigned char *) getenv("EEprom_ivm"); |
| 1602 | if (buf != NULL) |
| 1603 | i2c_mux_ident_muxstring_f (buf); |
| 1604 | } |
| 1605 | #endif |
| 1606 | return 0; |
| 1607 | } |
| 1608 | dev = i2c_mux_search_device(bus); |
| 1609 | if (dev == NULL) |
| 1610 | return -1; |
| 1611 | |
| 1612 | mux = dev->mux; |
| 1613 | while (mux != NULL) { |
Stefan Bigler | c649dda | 2011-04-08 16:24:08 +0200 | [diff] [blame] | 1614 | /* do deblocking on each level of mux, before mux config */ |
| 1615 | i2c_init_board(); |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1616 | if (i2c_write(mux->chip, 0, 0, &mux->channel, 1) != 0) { |
| 1617 | printf ("Error setting Mux: chip:%x channel: \ |
| 1618 | %x\n", mux->chip, mux->channel); |
| 1619 | return -1; |
| 1620 | } |
| 1621 | mux = mux->next; |
| 1622 | } |
Stefan Bigler | c649dda | 2011-04-08 16:24:08 +0200 | [diff] [blame] | 1623 | /* do deblocking on each level of mux and after mux config */ |
| 1624 | i2c_init_board(); |
Heiko Schocher | 67b23a3 | 2008-10-15 09:39:47 +0200 | [diff] [blame] | 1625 | return 0; |
| 1626 | } |
| 1627 | #endif /* CONFIG_I2C_MUX */ |