Commit 3ed6d3cb authored May 06, 2016 by Joachim Eastwood

ARM: dts: lpc18xx: configure dwmac properly



Configure the DWMAC FIFO sizes, burst length and threshold DMA mode on
LPC18xx/43xx SoCs. These parameters are needed for correct operation of
the Ethernet MAC. The DWMAC on LPC18xx/43xx does not support RSF DMA
mode and therefore must use threshold mode.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>

parent 143778eb

arch/arm/boot/dts/lpc18xx.dtsi

+4 −0

Original line number	Original line	Diff line number	Diff line
	@@ -186,6 +186,10 @@
	clock-names = "stmmaceth";		clock-names = "stmmaceth";
	resets = <&rgu 22>;		resets = <&rgu 22>;
	reset-names = "stmmaceth";		reset-names = "stmmaceth";
			rx-fifo-depth = <256>;
			tx-fifo-depth = <256>;
			snps,pbl = <4>; /* 32 (8x mode) */
			snps,force_thresh_dma_mode;
	status = "disabled";		status = "disabled";
	};		};