devicetree: bindings: Add sata port phy config parameters in ahci-ceva

This patch adds device tree bindings for sata port phy parameters
in the ahci-ceva.txt file.

Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/Documentation/devicetree/bindings/ata/ahci-ceva.txt b/Documentation/devicetree/bindings/ata/ahci-ceva.txt
index 7ca8b97..7561cc4 100644 (file)
--- a/Documentation/devicetree/bindings/ata/ahci-ceva.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-ceva.txt
@@ -5,6 +5,36 @@ Required properties:
   - compatible: Compatibility string. Must be 'ceva,ahci-1v84'.
   - clocks: Input clock specifier. Refer to common clock bindings.
   - interrupts: Interrupt specifier. Refer to interrupt binding.
+  - ceva,p0-cominit-params: OOB timing value for COMINIT parameter for port 0.
+  - ceva,p1-cominit-params: OOB timing value for COMINIT parameter for port 1.
+                       The fields for the above parameter must be as shown below:
+                       ceva,pN-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
+                       CINMP : COMINIT Negate Minimum Period.
+                       CIBGN : COMINIT Burst Gap Nominal.
+                       CIBGMX: COMINIT Burst Gap Maximum.
+                       CIBGMN: COMINIT Burst Gap Minimum.
+  - ceva,p0-comwake-params: OOB timing value for COMWAKE parameter for port 0.
+  - ceva,p1-comwake-params: OOB timing value for COMWAKE parameter for port 1.
+                       The fields for the above parameter must be as shown below:
+                       ceva,pN-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
+                       CWBGMN: COMWAKE Burst Gap Minimum.
+                       CWBGMX: COMWAKE Burst Gap Maximum.
+                       CWBGN: COMWAKE Burst Gap Nominal.
+                       CWNMP: COMWAKE Negate Minimum Period.
+  - ceva,p0-burst-params: Burst timing value for COM parameter for port 0.
+  - ceva,p1-burst-params: Burst timing value for COM parameter for port 1.
+                       The fields for the above parameter must be as shown below:
+                       ceva,pN-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
+                       BMX: COM Burst Maximum.
+                       BNM: COM Burst Nominal.
+                       SFD: Signal Failure Detection value.
+                       PTST: Partial to Slumber timer value.
+  - ceva,p0-retry-params: Retry interval timing value for port 0.
+  - ceva,p1-retry-params: Retry interval timing value for port 1.
+                       The fields for the above parameter must be as shown below:
+                       ceva,pN-retry-params = /bits/ 16 <RIT RCT>;
+                       RIT:  Retry Interval Timer.
+                       RCT:  Rate Change Timer.
 
 Optional properties:
   - ceva,broken-gen2: limit to gen1 speed instead of gen2.
@@ -16,5 +46,14 @@ Examples:
                interrupt-parent = <&gic>;
                interrupts = <0 133 4>;
                clocks = <&clkc SATA_CLK_ID>;
+               ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
+               ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
+               ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
+               ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>;
+
+               ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
+               ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
+               ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
+               ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>;
                ceva,broken-gen2;
        };