target/linux/mediatek/patches-4.4/0057-mtd-mediatek-device-tree-docs-for-MTK-Smart-Device-G.patch

   1 From 5f0a1fa77e5d53b8dbb751fcfc59c7ef3d78ddf2 Mon Sep 17 00:00:00 2001
   2 From: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
   3 Date: Wed, 2 Mar 2016 12:00:11 -0500
   4 Subject: [PATCH 57/81] mtd: mediatek: device tree docs for MTK Smart Device
   5  Gen1 NAND
   6
   7 This patch adds documentation support for Smart Device Gen1 type of
   8 NAND controllers.
   9
  10 Mediatek's SoC 2701 is one of the SoCs that implements this controller.
  11
  12 Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
  13 ---
  14  .../devicetree/bindings/mtd/mtksdg1-nand.txt       |   38 ++++++++++++++++++++
  15  1 file changed, 38 insertions(+)
  16  create mode 100644 Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt
  17
  18 --- /dev/null
  19 +++ b/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt
  20 @@ -0,0 +1,38 @@
  21 +MTK Smart Device SoCs NAND controller DT binding
  22 +
  23 +Required properties:
  24 +- compatible:          Should be "mediatek,mt2701-nfc".
  25 +- reg:                 The first contains base physical address and size of
  26 +                       NAND controller's registers. The second contains base
  27 +                       physical address and size of NAND ECC engine.
  28 +- interrupts:          the NFC NFI interrupt, and the NFC ECC interrupt
  29 +- clocks:              NAND controller clocks.
  30 +- clock-names:         NAND controller clocks internal name.
  31 +- vmch-supply:         NAND power supply.
  32 +- #address-cells:      Partition address, should be set 1.
  33 +- #size-cells:         Partition size, should be set 1.
  34 +
  35 +Optional properties:
  36 +
  37 +nand-on-flash-bbt:  Use a flash based bad block table.
  38 +
  39 +Optional subnodes:
  40 +- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
  41 +
  42 +Example:
  43 +
  44 +       nand: nand@1100d000 {
  45 +               compatible = "mediatek,mt2701-nfc";
  46 +               reg = <0 0x1100d000 0 0x1000>, <0 0x1100e000 0 0x1000>;
  47 +               interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>,
  48 +                       <GIC_SPI 55 IRQ_TYPE_LEVEL_LOW>;
  49 +               clocks = <&pericfg CLK_PERI_NFI>, <&pericfg CLK_PERI_NFI_ECC>,
  50 +                       <&pericfg CLK_PERI_NFI_PAD>;
  51 +               clock-names = "nfi_ck", "nfi_ecc_ck", "nfi_pad_ck";
  52 +               vmch-supply = <&mt6323_vmch_reg>;
  53 +               status = "disabled";
  54 +               #address-cells = <1>;
  55 +               #size-cells = <1>;
  56 +
  57 +               ...
  58 +       };