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>
This commit is contained in:
parent
05b8360599
commit
9053f4b985
|
@ -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;
|
||||
};
|
||||
|
|
Loading…
Reference in New Issue