lkml.org 
[lkml]   [2015]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 1/3] doc: dt: add documentation for Mediatek spi-nor controller
Date
Add device tree binding documentation for serial flash with
Mediatek serial flash controller

Signed-off-by: Bayi Cheng <bayi.cheng@mediatek.com>
---
.../devicetree/bindings/mtd/mtk-quadspi.txt | 30 ++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/mtk-quadspi.txt

diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
new file mode 100644
index 0000000..8fff0ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
@@ -0,0 +1,30 @@
+* MTD SPI nor driver for MTK MT81xx (and similar) serial flash controller
+
+Required properties:
+- compatible: should be "mediatek,mt8173-nor";
+- reg: physical base address and length of the controller's register
+- clocks: the phandle of the clock needed by the nor controller
+- clock-names: the name of the clocks
+ the clocks needed "spi" and "sf". "spi" is used for spi bus,
+ and "sf" is used for controller, these are the clocks witch
+ hardware needs to enabling nor flash and nor flash controller.
+ See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
+- #address-cells: should be <1>
+- #size-cells: should be <0>
+
+Example:
+
+nor_flash: spi@1100d000 {
+ compatible = "mediatek,mt8173-nor";
+ reg = <0 0x1100d000 0 0xe0>;
+ clocks = <&pericfg CLK_PERI_SPI>,
+ <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
+ clock-names = "spi", "sf";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ flash@0 {
+ ....
+ };
+};
+
--
1.8.1.1.dirty


\
 
 \ /
  Last update: 2015-10-01 10:01    [W:0.060 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site