diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.19/0304-dt-bindings-ARM-MediaTek-Document-devicetree-binding.patch')
| -rwxr-xr-x | target/linux/mediatek/patches-4.19/0304-dt-bindings-ARM-MediaTek-Document-devicetree-binding.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.19/0304-dt-bindings-ARM-MediaTek-Document-devicetree-binding.patch b/target/linux/mediatek/patches-4.19/0304-dt-bindings-ARM-MediaTek-Document-devicetree-binding.patch new file mode 100755 index 0000000000..a605fd1190 --- /dev/null +++ b/target/linux/mediatek/patches-4.19/0304-dt-bindings-ARM-MediaTek-Document-devicetree-binding.patch @@ -0,0 +1,66 @@ +From 28ec0b7e48bb27435a8b3134019b88628faf497f Mon Sep 17 00:00:00 2001 +From: Xiangsheng Hou <xiangsheng.hou@mediatek.com> +Date: Tue, 11 Dec 2018 17:37:28 +0800 +Subject: [PATCH 4/6] dt-bindings: ARM: MediaTek: Document devicetree bindings + for SPI NAND interface + +Change-Id: I9ece142055ae27100da95826fb3ea1960c2994e6 +Signed-off-by: Xiangsheng Hou <xiangsheng.hou@mediatek.com> +--- + .../devicetree/bindings/spi/spi-mtk-snfi.txt | 44 +++++++++++++++++++ + 1 file changed, 44 insertions(+) + create mode 100644 Documentation/devicetree/bindings/spi/spi-mtk-snfi.txt + +diff --git a/Documentation/devicetree/bindings/spi/spi-mtk-snfi.txt b/Documentation/devicetree/bindings/spi/spi-mtk-snfi.txt +new file mode 100644 +index 000000000000..a09c476c5289 +--- /dev/null ++++ b/Documentation/devicetree/bindings/spi/spi-mtk-snfi.txt +@@ -0,0 +1,44 @@ ++MediaTek SoCs SPI NAND FLASH interface (SNFI) DT binding ++ ++This file documents the device tree bindings for MTK SoCs SPI NAND controller. ++Note that Parallel Nand and SPI NAND is alternative on MTK SoCs. ++ ++Required properties: ++- compatible: should be "mediatek,mt7622-snfi" ++- reg: base physical address and size of SNFI. ++- interrupts: interrupts of SNFI. ++- clocks: SNFI required clocks. ++- clock-names: SNFI clocks internal names. ++- #address-cells: NAND chip index, should be 1. ++- #size-cells: Should be 0. ++ ++Example: ++ snfi: spi@1100d000 { ++ compatible = "mediatek,mt7622-snfi"; ++ reg = <0 0x1100d000 0 0x1000>; ++ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>; ++ clocks = <&pericfg CLK_PERI_NFI_PD>, ++ <&pericfg CLK_PERI_SNFI_PD>; ++ clock-names = "nfi_clk", "spi_clk"; ++ ecc-engine = <&bch>; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ }; ++ ++Subnodes properties: ++- Should use spi-nand framework, see Documentation/devicetree/bindings/mtd/spi-nand.txt ++ ++Example: ++&snfi { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&serial_nand_pins>; ++ status = "okay"; ++ ++ spi_nand@0 { ++ #address-cells = <1>; ++ #size-cells = <1>; ++ compatible = "spi-nand"; ++ spi-max-frequency = <104000000>; ++ reg = <0>; ++ }; ++}; +-- +2.20.1 + |