Hi Rob,
Thank you for the review comments.
On 1/10/2019 6:36 AM, Rob Herring wrote:
On Mon, Sep 16, 2019 at 03:38:42PM +0800, Ramuthevar,Vadivel MuruganX wrote:
From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthe...@linux.intel.com>
On Intel Lightening Mountain(LGM) SoCs QSPI controller support
to QSPI-NAND flash. This introduces to device tree binding
documentation for Cadence-QSPI controller and spi-nand flash.
Signed-off-by: Ramuthevar Vadivel Murugan
<vadivel.muruganx.ramuthe...@linux.intel.com>
---
.../devicetree/bindings/spi/cadence,qspi-nand.yaml | 84 ++++++++++++++++++++++
1 file changed, 84 insertions(+)
create mode 100644
Documentation/devicetree/bindings/spi/cadence,qspi-nand.yaml
diff --git a/Documentation/devicetree/bindings/spi/cadence,qspi-nand.yaml
b/Documentation/devicetree/bindings/spi/cadence,qspi-nand.yaml
new file mode 100644
index 000000000000..9aae4c1459cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/cadence,qspi-nand.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/spi/cadence,qspi-nand.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Cadence QSPI Flash Controller on Intel's SoC
+
+maintainers:
+ - Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthe...@linux.intel.com>
+
+allOf:
+ - $ref: "spi-controller.yaml#"
+
+description: |
+ The Cadence QSPI is a controller optimized for communication with SPI
+ FLASH memories, without DMA support on Intel's SoC.
+
+properties:
+ compatible:
+ const: cadence,lgm-qspi
Vendor here should be 'intel'. Perhaps the binding should be shared too
like the driver.
Plus the vendor prefix for Cadence is cdns.
Agreed!, will update.
+
+ reg:
+ maxItems: 1
+
+ fifo-depth:
+ maxItems: 1
+
This is vendor specific, so needs a vendor prefix, type, and
description.
agreed!
+ fifo-width:
+ maxItems: 1
Same
+
+ qspi-phyaddr:
+ maxItems: 1
Same
+
+ qspi-phymask:
+ maxItems: 1
Same
will update all the above.
+
+ clocks:
+ maxItems: 2
Need to define what each clock is when there is more than 1.
Sure, will update.
+
+ clocks-names:
+ maxItems: 2
Need to define the strings.
Noted, will update.
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - fifo-depth
+ - fifo-width
+ - qspi-phyaddr
+ - qspi-phymask
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+examples:
+ - |
+ qspi@ec000000 {
spi@...
Controller is qspi , so that have updated.
With Best Regards
Vadivel Murugan R
+ compatible = "cadence,qspi-nand";
+ reg = <0xec000000 0x100>;
+ fifo-depth = <128>;
+ fifo-width = <4>;
+ qspi-phyaddr = <0xf4000000>;
+ qspi-phymask = <0xffffffff>;
+ clocks = <&cgu0 LGM_CLK_QSPI>, <&cgu0 LGM_GCLK_QSPI>;
+ clock-names = "freq", "qspi";
+ resets = <&rcu0 0x10 1>;
+ reset-names = "qspi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ flash: flash@1 {
+ compatible = "spi-nand";
+ reg = <1>;
+ spi-max-frequency = <10000000>;
+ };
+ };
+
--
2.11.0
