15 Dec
2020
15 Dec
'20
9 a.m.
On Mon, Dec 14, 2020 at 7:08 PM Padmarao Begari padmarao.begari@microchip.com wrote:
Enable 32-bit or 64-bit DMA in the macb driver based on the macb hardware compatibility and it is configured with structure macb_config in the driver.
The Microchip PolarFire SoC Memory Protection Unit(MPU) gives the 64-bit DMA access with the GEM, the MPU transactions on the AXI bus is 64-bit not 32-bit So 64-bit DMA is enabled for the Microchip PolarFire SoC GEM.
Signed-off-by: Padmarao Begari padmarao.begari@microchip.com Reviewed-by: Anup Patel anup.patel@wdc.com
drivers/net/macb.c | 131 +++++++++++++++++++++++++++++++++++++++------ drivers/net/macb.h | 6 +++ 2 files changed, 120 insertions(+), 17 deletions(-)
Tested-by: Bin Meng bin.meng@windriver.com