summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/ata
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 09:41:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 09:41:58 -0700
commit109a5db5042c035ded330b948a710b9a0c20934d (patch)
tree5ebd38a4e36ea740a3de6edbc7b6a3250a776ef5 /Documentation/devicetree/bindings/ata
parenta4c20b9a574b9720acf6c647eaff5e7e1e688086 (diff)
parentd80210f25ff0050245556bb8ce84d280d8fa4ca7 (diff)
Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo: - Christoph added support for TCG OPAL self encrypting disks - Minwoo added support for ATA PASS-THROUGH(32) - Linus Walleij removed spurious drvdata assignments in some drivers - Support for a few new device and other fixes * 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (33 commits) sd: add support for TCG OPAL self encrypting disks libata: fix build warning from unused goto label libata: Support for an ATA PASS-THROUGH(32) command. ahci: Add Device ID for ASMedia 1061R and 1062R sata_via: Enable optional hotplug on VT6420 ata: ahci_brcm: Avoid writing to read-only registers libata: Add the AHCI_HFLAG_NO_WRITE_TO_RO flag libata: Add the AHCI_HFLAG_YES_ALPM flag ata: ftide010: fix resource printing libata: make the function name in comment match the actual function ata: sata_rcar: make of_device_ids const. ata: pata_octeon_cf: make of_device_ids const. libata: Convert bare printks to pr_cont libahci: wrong comments in ahci_do_softreset() ata: declare ata_port_info structures as const ata: Add driver for Faraday Technology FTIDE010 ata: Add DT bindings for the Gemini SATA bridge ata: Add DT bindings for Faraday Technology FTIDE010 libata: implement SECURITY PROTOCOL IN/OUT libata: factor out a ata_identify_page_supported helper ...
Diffstat (limited to 'Documentation/devicetree/bindings/ata')
-rw-r--r--Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt55
-rw-r--r--Documentation/devicetree/bindings/ata/faraday,ftide010.txt38
2 files changed, 93 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
new file mode 100644
index 000000000000..1c3d3cc70051
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
@@ -0,0 +1,55 @@
+* Cortina Systems Gemini SATA Bridge
+
+The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
+takes two Faraday Technology FTIDE010 PATA controllers and bridges
+them in different configurations to two SATA ports.
+
+Required properties:
+- compatible: should be
+ "cortina,gemini-sata-bridge"
+- reg: registers and size for the block
+- resets: phandles to the reset lines for both SATA bridges
+- reset-names: must be "sata0", "sata1"
+- clocks: phandles to the compulsory peripheral clocks
+- clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
+- syscon: a phandle to the global Gemini system controller
+- cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
+ the ATA controller and SATA bridges. Values 0..3:
+ Mode 0: ata0 master <-> sata0
+ ata1 master <-> sata1
+ ata0 slave interface brought out on IDE pads
+ Mode 1: ata0 master <-> sata0
+ ata1 master <-> sata1
+ ata1 slave interface brought out on IDE pads
+ Mode 2: ata1 master <-> sata1
+ ata1 slave <-> sata0
+ ata0 master and slave interfaces brought out
+ on IDE pads
+ Mode 3: ata0 master <-> sata0
+ ata0 slave <-> sata1
+ ata1 master and slave interfaces brought out
+ on IDE pads
+
+Optional boolean properties:
+- cortina,gemini-enable-ide-pins: enables the PATA to IDE connection.
+ The muxmode setting decides whether ATA0 or ATA1 is brought out,
+ and whether master, slave or both interfaces get brought out.
+- cortina,gemini-enable-sata-bridge: enables the PATA to SATA bridge
+ inside the Gemnini SoC. The Muxmode decides what PATA blocks will
+ be muxed out and how.
+
+Example:
+
+sata: sata@46000000 {
+ compatible = "cortina,gemini-sata-bridge";
+ reg = <0x46000000 0x100>;
+ resets = <&rcon 26>, <&rcon 27>;
+ reset-names = "sata0", "sata1";
+ clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
+ <&gcc GEMINI_CLK_GATE_SATA1>;
+ clock-names = "SATA0_PCLK", "SATA1_PCLK";
+ syscon = <&syscon>;
+ cortina,gemini-ata-muxmode = <3>;
+ cortina,gemini-enable-ide-pins;
+ cortina,gemini-enable-sata-bridge;
+};
diff --git a/Documentation/devicetree/bindings/ata/faraday,ftide010.txt b/Documentation/devicetree/bindings/ata/faraday,ftide010.txt
new file mode 100644
index 000000000000..a0c64a29104d
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/faraday,ftide010.txt
@@ -0,0 +1,38 @@
+* Faraday Technology FTIDE010 PATA controller
+
+This controller is the first Faraday IDE interface block, used in the
+StorLink SL2312 and SL3516, later known as the Cortina Systems Gemini
+platform. The controller can do PIO modes 0 through 4, Multi-word DMA
+(MWDM)modes 0 through 2 and Ultra DMA modes 0 through 6.
+
+On the Gemini platform, this PATA block is accompanied by a PATA to
+SATA bridge in order to support SATA. This is why a phandle to that
+controller is compulsory on that platform.
+
+The timing properties are unique per-SoC, not per-board.
+
+Required properties:
+- compatible: should be one of
+ "cortina,gemini-pata", "faraday,ftide010"
+ "faraday,ftide010"
+- interrupts: interrupt for the block
+- reg: registers and size for the block
+
+Optional properties:
+- clocks: a SoC clock running the peripheral.
+- clock-names: should be set to "PCLK" for the peripheral clock.
+
+Required properties for "cortina,gemini-pata" compatible:
+- sata: a phande to the Gemini PATA to SATA bridge, see
+ cortina,gemini-sata-bridge.txt for details.
+
+Example:
+
+ata@63000000 {
+ compatible = "cortina,gemini-pata", "faraday,ftide010";
+ reg = <0x63000000 0x100>;
+ interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&gcc GEMINI_CLK_GATE_IDE>;
+ clock-names = "PCLK";
+ sata = <&sata>;
+};