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board: phytec: common: Move API v2 init to new function

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Move the entire initialization code for API v2 into a dedicated
function. This rework will allow to easily integrate the API v3
as next step during init.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
This commit is contained in:
Daniel Schultz
2024-05-21 23:18:24 -07:00
committed by Tom Rini
parent 38b96407f6
commit 2c3afb76d7
1 changed files with 23 additions and 15 deletions
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38
board/phytec/common/phytec_som_detection.c
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@@ -72,11 +72,29 @@ int phytec_eeprom_read(u8 *data, int bus_num, int addr, int size, int offset)
return ret;
}
int phytec_eeprom_data_init_v2(struct phytec_eeprom_data *data)
{
unsigned int crc;
if (!data)
return -1;
crc = crc8(0, (const unsigned char *)&data->payload, PHYTEC_API2_DATA_LEN);
debug("%s: crc: %x\n", __func__, crc);
if (crc) {
pr_err("%s: CRC mismatch. EEPROM data is not usable.\n",
__func__);
return -EINVAL;
}
return 0;
}
int phytec_eeprom_data_init(struct phytec_eeprom_data *data,
int bus_num, int addr)
{
int ret, i;
unsigned int crc;
u8 *ptr;
if (!data)
@@ -104,20 +122,10 @@ int phytec_eeprom_data_init(struct phytec_eeprom_data *data,
goto err;
}
/* We are done here for early revisions */
if (data->payload.api_rev <= PHYTEC_API_REV1) {
data->valid = true;
return 0;
}
crc = crc8(0, (const unsigned char *)&data->payload, PHYTEC_API2_DATA_LEN);
debug("%s: crc: %x\n", __func__, crc);
if (crc) {
pr_err("%s: CRC mismatch. EEPROM data is not usable.\n",
__func__);
ret = -EINVAL;
goto err;
if (data->payload.api_rev >= PHYTEC_API_REV2) {
ret = phytec_eeprom_data_init_v2(data);
if (ret)
goto err;
}
data->valid = true;