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

   1 From 0fe612b501f1d56d76b2858d2ae779c1e766d064 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 57/91] 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 diff --git a/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt b/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt
  19 new file mode 100644
  20 index 0000000..129d17b
  21 --- /dev/null
  22 +++ b/Documentation/devicetree/bindings/mtd/mtksdg1-nand.txt
  23 @@ -0,0 +1,38 @@
  24 +MTK Smart Device SoCs NAND controller DT binding
  25 +
  26 +Required properties:
  27 +- compatible:          Should be "mediatek,mt2701-nfc".
  28 +- reg:                 The first contains base physical address and size of
  29 +                       NAND controller's registers. The second contains base
  30 +                       physical address and size of NAND ECC engine.
  31 +- interrupts:          the NFC NFI interrupt, and the NFC ECC interrupt
  32 +- clocks:              NAND controller clocks.
  33 +- clock-names:         NAND controller clocks internal name.
  34 +- vmch-supply:         NAND power supply.
  35 +- #address-cells:      Partition address, should be set 1.
  36 +- #size-cells:         Partition size, should be set 1.
  37 +
  38 +Optional properties:
  39 +
  40 +nand-on-flash-bbt:  Use a flash based bad block table.
  41 +
  42 +Optional subnodes:
  43 +- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt
  44 +
  45 +Example:
  46 +
  47 +       nand: nand@1100d000 {
  48 +               compatible = "mediatek,mt2701-nfc";
  49 +               reg = <0 0x1100d000 0 0x1000>, <0 0x1100e000 0 0x1000>;
  50 +               interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>,
  51 +                       <GIC_SPI 55 IRQ_TYPE_LEVEL_LOW>;
  52 +               clocks = <&pericfg CLK_PERI_NFI>, <&pericfg CLK_PERI_NFI_ECC>,
  53 +                       <&pericfg CLK_PERI_NFI_PAD>;
  54 +               clock-names = "nfi_ck", "nfi_ecc_ck", "nfi_pad_ck";
  55 +               vmch-supply = <&mt6323_vmch_reg>;
  56 +               status = "disabled";
  57 +               #address-cells = <1>;
  58 +               #size-cells = <1>;
  59 +
  60 +               ...
  61 +       };
  62 --
  63 1.7.10.4
  64