Commit 13967f0c authored by Vince Bridgers's avatar Vince Bridgers Committed by David S. Miller
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stmmac: Add properties for transmit and receive fifo sizes



The Synopsys stmmac fifo sizes are configurable, and need to be known
in order to configure certain controller features. This patch adds
tx-fifo-depth and rx-fifo-depth properties to the stmmac document
file.
Signed-off-by: default avatarVince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e743471f
......@@ -19,6 +19,12 @@ The following properties are common to the Ethernet controllers:
- phy: the same as "phy-handle" property, not recommended for new bindings.
- phy-device: the same as "phy-handle" property, not recommended for new
bindings.
- rx-fifo-depth: the size of the controller's receive fifo in bytes. This
is used for components that can have configurable receive fifo sizes,
and is useful for determining certain configuration settings such as
flow control thresholds.
- tx-fifo-depth: the size of the controller's transmit fifo in bytes. This
is used for components that can have configurable fifo sizes.
Child nodes of the Ethernet controller are typically the individual PHY devices
connected via the MDIO bus (sometimes the MDIO bus controller is separate).
......
......@@ -45,6 +45,8 @@ Optional properties:
If not passed then the system clock will be used and this is fine on some
platforms.
- snps,burst_len: The AXI burst lenth value of the AXI BUS MODE register.
- tx-fifo-depth: See ethernet.txt file in the same directory
- rx-fifo-depth: See ethernet.txt file in the same directory
Examples:
......@@ -59,6 +61,8 @@ Examples:
phy-mode = "gmii";
snps,multicast-filter-bins = <256>;
snps,perfect-filter-entries = <128>;
rx-fifo-depth = <16384>;
tx-fifo-depth = <16384>;
clocks = <&clock>;
clock-names = "stmmaceth";
};
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