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it8380dev: util: fix iteflash

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Add support for flash the ite ec from usb gpio port

Signed-off-by: Donald Huang <donald.huang@ite.com.tw>

BRANCH=none
BUG=none
TEST=Test OK on ITE8390CX from both GPIO PORT (C1,C2) (H5,H6)
     You can run "make -j BOARD=it8380dev" to build ec.bin
     and flash the ec.bin via
     "sudo ./build/it8380dev/util/iteflash -w ./build/it8380dev/ec.bin"

/* ==SNAPSHOT START== */
(cr) (br-iteflash) donald@donald-nb ~/trunk/src/platform/ec $ sudo ./build/it8380dev/util/iteflash -w ./build/it8380dev/ec.bin
Waiting for the EC power-on sequence ...CHIPID 8390, CHIPVER 82, Flash size 256 kB
Done.
CHIPID 8390, CHIPVER 82, Flash size 256 kB
Erasing chip...
/100%
Writing 262144 bytes at 0x00000000
Done.

/* ==SNAPSHOT END== */

Change-Id: I422db6f7007622f8be624a534a482e24d53a061a
Reviewed-on: https://chromium-review.googlesource.com/311205
Commit-Ready: Donald Huang <donald.huang@ite.com.tw>
Tested-by: Donald Huang <donald.huang@ite.com.tw>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Donald Huang <donald.huang@ite.com.tw>
This commit is contained in:
Donald Huang
2015-11-06 16:34:31 +08:00
committed by chrome-bot
parent 62691cac03
commit dbc3f1dad5
1 changed files with 27 additions and 5 deletions
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32
util/iteflash.c
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@@ -447,10 +447,16 @@ static int config_i2c(struct ftdi_context *ftdi)
}
/* Special waveform definition */
#define SPECIAL_LEN_USEC 50000ULL /* us */
#define SPECIAL_FREQ 400000ULL
#define SPECIAL_LEN_USEC 50000ULL /* us */
#define SPECIAL_FREQ 400000ULL
#define SPECIAL_PATTERN 0x0000020301010302ULL
#define SPECIAL_PATTERN_SDA_L_SCL_L 0x0000000000000000ULL
#define SPECIAL_PATTERN_SDA_H_SCL_L 0x0202020202020202ULL
#define SPECIAL_PATTERN_SDA_L_SCL_H 0x0101010101010101ULL
#define SPECIAL_PATTERN_SDA_H_SCL_H 0x0303030303030303ULL
#define TICK_COUNT 24
#define MSEC 1000
#define USEC 1000000
@@ -495,8 +501,23 @@ retry:
goto special_failed;
}
/* do usb special waveform */
wave[0] = 0x0;
ftdi_write_data(ftdi, (uint8_t *)wave, 1);
usleep(5000);
/* program each special tick */
for (i = 0; i < TICK_COUNT; ) {
wave[i++] = SPECIAL_PATTERN_SDA_L_SCL_L;
wave[i++] = SPECIAL_PATTERN_SDA_H_SCL_L;
wave[i++] = SPECIAL_PATTERN_SDA_L_SCL_L;
}
wave[19] = SPECIAL_PATTERN_SDA_H_SCL_H;
/* fill the buffer with the waveform pattern */
for (i = 0; i < SPECIAL_BUFFER_SIZE / sizeof(uint64_t); i++)
for (i = TICK_COUNT; i < SPECIAL_BUFFER_SIZE / sizeof(uint64_t); i++)
wave[i] = SPECIAL_PATTERN;
ret = ftdi_write_data(ftdi, (uint8_t *)wave, SPECIAL_BUFFER_SIZE);
@@ -513,9 +534,10 @@ retry:
usleep(10 * MSEC);
/* if we cannot communicate, retry the sequence */
if (check_chipid(ftdi) < 0)
if (check_chipid(ftdi) < 0) {
sleep(1);
goto retry;
}
special_failed:
printf("Done.\n");
free(wave);