As per datasheet (section 4.6 p. 147) accessing EEPROM on i210 requires software to hold a corresponding lock bit in SW_FW_SYNC register.
Signed-off-by: Andrey Smirnov <[email protected]> --- drivers/net/e1000/eeprom.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/net/e1000/eeprom.c b/drivers/net/e1000/eeprom.c index c3677c5..aca16f7 100644 --- a/drivers/net/e1000/eeprom.c +++ b/drivers/net/e1000/eeprom.c @@ -16,7 +16,8 @@ static int32_t e1000_read_eeprom_eerd(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data); static int32_t e1000_spi_eeprom_ready(struct e1000_hw *hw); static void e1000_release_eeprom(struct e1000_hw *hw); - +static int32_t e1000_acquire_eeprom_flash(struct e1000_hw *hw); +static void e1000_release_eeprom_flash(struct e1000_hw *hw); /****************************************************************************** @@ -290,6 +291,11 @@ static int32_t e1000_acquire_eeprom_microwire(struct e1000_hw *hw) return E1000_SUCCESS; } +static int32_t e1000_acquire_eeprom_flash(struct e1000_hw *hw) +{ + return e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM); +} + static int32_t e1000_acquire_eeprom(struct e1000_hw *hw) { if (hw->eeprom.acquire) @@ -403,6 +409,9 @@ int32_t e1000_init_eeprom_params(struct e1000_hw *hw) if (eecd & E1000_EECD_I210_FLASH_DETECTED) { eeprom->type = e1000_eeprom_flash; eeprom->word_size = 2048; + + eeprom->acquire = e1000_acquire_eeprom_flash; + eeprom->release = e1000_release_eeprom_flash; } else { eeprom->type = e1000_eeprom_invm; } @@ -621,6 +630,14 @@ static void e1000_release_eeprom_spi(struct e1000_hw *hw) e1000_release_eeprom_spi_microwire_epilogue(hw); } +static void e1000_release_eeprom_flash(struct e1000_hw *hw) +{ + if (e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM) < 0) + dev_warn(hw->dev, + "Timeout while releasing SWFW_SYNC bits (0x%08x)\n", + E1000_SWFW_EEP_SM); +} + static void e1000_release_eeprom(struct e1000_hw *hw) { if (hw->eeprom.release) -- 2.5.0 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
