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Mass erase new mtd2 #828

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merged 1 commit into from
Nov 29, 2024
Merged

Mass erase new mtd2 #828

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44 changes: 19 additions & 25 deletions platforms/nuttx/src/px4/common/px4_24xxxx_mtd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -603,34 +603,28 @@ int px4_at24c_initialize(FAR struct i2c_master_s *dev,
priv->perf_errors = perf_alloc(PC_COUNT, "[at24c] eeprom errors");
}

/* attempt to read to validate device is present */
unsigned char buf[5];
uint8_t addrbuf[2] = {0, 0};
/* attempt to read last page to validate device is present */

struct i2c_msg_s msgv[2] = {
{
.frequency = 400000,
.addr = priv->addr,
.flags = 0,
.buffer = &addrbuf[0],
.length = sizeof(addrbuf),
},
{
.frequency = 400000,
.addr = priv->addr,
.flags = I2C_M_READ,
.buffer = &buf[0],
.length = sizeof(buf),
}
};
uint8_t buf[AT24XX_PAGESIZE];
int ret = at24c_bread((FAR struct mtd_dev_s *)priv,
AT24XX_NPAGES - 1,
1,
buf);

BOARD_EEPROM_WP_CTRL(true);
if (ret != 1) {
ferr("Read failed, mass erase, ret %d\n", ret);

at24c_eraseall(&g_at24c[number_of_instances]);

perf_begin(priv->perf_transfers);
int ret = I2C_TRANSFER(priv->dev, &msgv[0], 2);
perf_end(priv->perf_transfers);
/* Try to read again */

ret = at24c_bread((FAR struct mtd_dev_s *)priv,
AT24XX_NPAGES - 1,
1,
buf);
}

if (ret < 0) {
if (ret != 1) {
perf_free(priv->perf_transfers);
perf_free(priv->perf_resets_retries);
perf_free(priv->perf_errors);
Expand All @@ -639,7 +633,7 @@ int px4_at24c_initialize(FAR struct i2c_master_s *dev,
priv->perf_resets_retries = NULL;
priv->perf_errors = NULL;

return ret;
return -1;
}

*mtd_dev = (FAR struct mtd_dev_s *)priv;
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