[PATCH 1/3] mtd: mediatek: device tree docs for MTK Smart Device Gen1 NAND

Jorge Ramirez-Ortiz
2016-03-02T17:00:55Z

This patch adds documentation support for Smart Device Gen1 type of
NAND controllers.

Mediatek's SoC 2701 is one of the SoCs that implements this controller.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
---
.../devicetree/bindings/mtd/mtksdg1-nand.txt | 38 ++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt

diff --git a/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt b/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt
new file mode 100644
index 0000000..129d17b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt
@@ -0,0 +1,38 @@
+MTK Smart Device SoCs NAND controller DT binding
+
+Required properties:
+- compatible: Should be "mediatek,mt2701-nfc".
+- reg: The first contains base physical address and size of
+ NAND controller's registers. The second contains base
+ physical address and size of NAND ECC engine.
+- interrupts: the NFC NFI interrupt, and the NFC ECC interrupt
+- clocks: NAND controller clocks.
+- clock-names: NAND controller clocks internal name.
+- vmch-supply: NAND power supply.
+- #address-cells: Partition address, should be set 1.
+- #size-cells: Partition size, should be set 1.
+
+Optional properties:
+
+nand-on-flash-bbt: Use a flash based bad block table.
+
+Optional subnodes:
+- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
+
+Example:
+
+ nand: nand@1100d000 {
+ compatible = "mediatek,mt2701-nfc";
+ reg = <0 0x1100d000 0 0x1000>, <0 0x1100e000 0 0x1000>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 55 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_NFI>, <&pericfg CLK_PERI_NFI_ECC>,
+ <&pericfg CLK_PERI_NFI_PAD>;
+ clock-names = "nfi_ck", "nfi_ecc_ck", "nfi_pad_ck";
+ vmch-supply = <&mt6323_vmch_reg>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ...
+ };
--
2.1.4