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-rw-r--r--Documentation/devicetree/bindings/net/stmmac.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index b95ff998ba73..8080038ff1b2 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -34,7 +34,11 @@ Optional properties:
platforms.
- tx-fifo-depth: See ethernet.txt file in the same directory
- rx-fifo-depth: See ethernet.txt file in the same directory
-- snps,pbl Programmable Burst Length
+- snps,pbl Programmable Burst Length (tx and rx)
+- snps,txpbl Tx Programmable Burst Length. Only for GMAC and newer.
+ If set, DMA tx will use this value rather than snps,pbl.
+- snps,rxpbl Rx Programmable Burst Length. Only for GMAC and newer.
+ If set, DMA rx will use this value rather than snps,pbl.
- snps,aal Address-Aligned Beats
- snps,fixed-burst Program the DMA to use the fixed burst mode
- snps,mixed-burst Program the DMA to use the mixed burst mode