On Mon, Aug 26, 2019 at 2:18 AM Stefan Roese sr@denx.de wrote:
With commit c6d07bf440bc ("net/macb: increase RX buffer size for GEM") ethernet support does not work any more with d-cache enabled on the AT91SAM. The reason is, that MACB_RX_BUFFER_SIZE was changed from 4096 to 128 but this change was not refected in the rx_buffer flush and invalidate functions, as these also use this macro.
This patch now fixes this by calculating the rx buffer size correctly again in those functions. With this change, ethernet works again reliably on my AT91SAM board.
Signed-off-by: Stefan Roese sr@denx.de Fixes: c6d07bf440bc ("net/macb: increase RX buffer size for GEM") Cc: Ramon Fried rfried.dev@gmail.com Cc: Eugen Hristev eugen.hristev@microchip.com Cc: Anup Patel anup.patel@wdc.com Cc: Bin Meng bmeng.cn@gmail.com Cc: Joe Hershberger joe.hershberger@ni.com
Acked-by: Joe Hershberger joe.hershberger@ni.com