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net/e1000: Fix EEPROM access error

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Commit 951860634f may have changed
the logic unintentially from "if (!(swfw_sync & (fwmask | swmask)))"
to "if ((swfw_sync & swmask) && !(swfw_sync & fwmask))". This change
breaks some e1000 NIC with a message "ERROR: Unable to read EEPROM!".

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Marek Vasut <marex@denx.de>
CC: Tim Harvey <tharvey@gateworks.com>
Acked-by: Marcel Ziswiler <marcel@ziswiler.com>
This commit is contained in:
York Sun 2014-10-17 13:44:06 -07:00 • committed by Tom Rini
parent 998194584e
commit 76f8cdb203
1 changed files with 1 additions and 1 deletions
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2
drivers/net/e1000.c
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@ -1113,7 +1113,7 @@ e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask)
return -E1000_ERR_SWFW_SYNC; return -E1000_ERR_SWFW_SYNC;
swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC);
if ((swfw_sync & swmask) && !(swfw_sync & fwmask)) if (!(swfw_sync & (fwmask | swmask)))
break; break;
/* firmware currently using resource (fwmask) */ /* firmware currently using resource (fwmask) */