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eeprom: Add support for selecting i2c bus

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Add additional parameter into the eeprom command to select
the I2C bus on which the eeprom resides.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Marek Vasut 2015-11-10 20:53:32 +01:00 • committed by Tom Rini
parent 354e3ed754
commit d4fec4e988
1 changed files with 11 additions and 4 deletions
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15
common/cmd_eeprom.c
View file

@ -209,14 +209,21 @@ static int do_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
char * const *args = &argv[2]; char * const *args = &argv[2];
int rcode; int rcode;
ulong dev_addr, addr, off, cnt; ulong dev_addr, addr, off, cnt;
int bus_addr;
switch (argc) { switch (argc) {
#ifdef CONFIG_SYS_DEF_EEPROM_ADDR #ifdef CONFIG_SYS_DEF_EEPROM_ADDR
case 5: case 5:
bus_addr = -1;
dev_addr = CONFIG_SYS_DEF_EEPROM_ADDR; dev_addr = CONFIG_SYS_DEF_EEPROM_ADDR;
break; break;
#endif #endif
case 6: case 6:
bus_addr = -1;
dev_addr = simple_strtoul(*args++, NULL, 16);
break;
case 7:
bus_addr = simple_strtoul(*args++, NULL, 16);
dev_addr = simple_strtoul(*args++, NULL, 16); dev_addr = simple_strtoul(*args++, NULL, 16);
break; break;
default: default:
@ -227,7 +234,7 @@ static int do_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
off = simple_strtoul(*args++, NULL, 16); off = simple_strtoul(*args++, NULL, 16);
cnt = simple_strtoul(*args++, NULL, 16); cnt = simple_strtoul(*args++, NULL, 16);
eeprom_init(-1); eeprom_init(bus_addr);
if (strcmp (argv[1], "read") == 0) { if (strcmp (argv[1], "read") == 0) {
printf(fmt, dev_addr, argv[1], addr, off, cnt); printf(fmt, dev_addr, argv[1], addr, off, cnt);
@ -249,9 +256,9 @@ static int do_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
} }
U_BOOT_CMD( U_BOOT_CMD(
eeprom, 6, 1, do_eeprom, eeprom, 7, 1, do_eeprom,
"EEPROM sub-system", "EEPROM sub-system",
"read devaddr addr off cnt\n" "read <bus> <devaddr> addr off cnt\n"
"eeprom write devaddr addr off cnt\n" "eeprom write <bus> <devaddr> addr off cnt\n"
" - read/write `cnt' bytes from `devaddr` EEPROM at offset `off'" " - read/write `cnt' bytes from `devaddr` EEPROM at offset `off'"
) )