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net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}
On a MIPS Malta board, tons of fifo underflow errors have been observed when using u-boot as bootloader instead of YAMON. The reason for that is that YAMON used to set the pcnet device to SRAM mode but u-boot does not. As a result, the default Tx threshold (64 bytes) is now too small to keep the fifo relatively used and it can result to Tx fifo underflow errors. As a result of which, it's best to setup the SRAM on supported controllers so we can always use the NOUFLO bit. Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: Don Fry <[email protected]> Signed-off-by: Markos Chandras <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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