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 <andrew.smirnov@xxxxxxxxx>
---
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
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