diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@st.com> | 2013-07-04 10:35:48 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-04 14:34:17 -0700 |
| commit | 0e0764715d8116484d808f5b3985ca043080788e (patch) | |
| tree | 9f486c6604183917901e5385e0391943d0999e1b /Documentation | |
| parent | 25c83b5c2e82560406d5265f42cd147f1eb441d0 (diff) | |
| download | linux-0e0764715d8116484d808f5b3985ca043080788e.tar.bz2 | |
dt:net:stmmac: Add dt specific phy reset callback support.
This patch adds phy reset callback support for stmmac driver via device
trees. It adds three new properties to gmac device tree bindings to
define the reset signal via gpio.
With this patch users can conveniently pass reset gpio number with pre,
pulse and post delay in micro secs via DTs.
active low:
_________ ____________
<pre-delay> |<pulse-delay> |<post-delay>
| |
|_______________|
active high:
________________
<pre-delay> |<pulse-delay> |<post-delay>
| |
________| |___________
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/stmmac.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt index e1ddfcc46a4e..261c563b5f06 100644 --- a/Documentation/devicetree/bindings/net/stmmac.txt +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -13,6 +13,12 @@ Required properties: - phy-mode: String, operation mode of the PHY interface. Supported values are: "mii", "rmii", "gmii", "rgmii". - snps,phy-addr phy address to connect to. +- snps,reset-gpio gpio number for phy reset. +- snps,reset-active-low boolean flag to indicate if phy reset is active low. +- snps,reset-delays-us is triplet of delays + The 1st cell is reset pre-delay in micro seconds. + The 2nd cell is reset pulse in micro seconds. + The 3rd cell is reset post-delay in micro seconds. - snps,pbl Programmable Burst Length - snps,fixed-burst Program the DMA to use the fixed burst mode - snps,mixed-burst Program the DMA to use the mixed burst mode |