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board: phytec: common: Move eeprom read to new function

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We need to read multiple times from different offsets in API v3.
Move the EEPROM read logic into a dedicated function to make it
usable multiple times.

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 23:18:22 -07:00
committed by Tom Rini
parent 03de305ec4
commit 0329547377
1 changed files with 28 additions and 18 deletions
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46
board/phytec/common/phytec_som_detection.c
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@@ -47,6 +47,31 @@ int phytec_eeprom_data_setup(struct phytec_eeprom_data *data,
return ret;
}
int phytec_eeprom_read(u8 *data, int bus_num, int addr, int size, int offset)
{
int ret;
#if CONFIG_IS_ENABLED(DM_I2C)
struct udevice *dev;
ret = i2c_get_chip_for_busnum(bus_num, addr, 2, &dev);
if (ret) {
pr_err("%s: i2c EEPROM not found: %i.\n", __func__, ret);
return ret;
}
ret = dm_i2c_read(dev, offset, (uint8_t *)data, size);
if (ret) {
pr_err("%s: Unable to read EEPROM data: %i\n", __func__, ret);
return ret;
}
#else
i2c_set_bus_num(bus_num);
ret = i2c_read(addr, offset, 2, (uint8_t *)data, size);
#endif
return ret;
}
int phytec_eeprom_data_init(struct phytec_eeprom_data *data,
int bus_num, int addr)
{
@@ -58,25 +83,10 @@ int phytec_eeprom_data_init(struct phytec_eeprom_data *data,
if (!data)
data = &eeprom_data;
#if CONFIG_IS_ENABLED(DM_I2C)
struct udevice *dev;
ret = i2c_get_chip_for_busnum(bus_num, addr, 2, &dev);
if (ret) {
pr_err("%s: i2c EEPROM not found: %i.\n", __func__, ret);
ret = phytec_eeprom_read((u8 *)data, bus_num, addr,
payload_size, 0);
if (ret)
goto err;
}
ret = dm_i2c_read(dev, 0, (uint8_t *)data, payload_size);
if (ret) {
pr_err("%s: Unable to read EEPROM data: %i\n", __func__, ret);
goto err;
}
#else
i2c_set_bus_num(bus_num);
ret = i2c_read(addr, 0, 2, (uint8_t *)data,
sizeof(struct phytec_eeprom_data));
#endif
if (data->payload.api_rev == 0xff) {
pr_err("%s: EEPROM is not flashed. Prototype?\n", __func__);