[PATCH v3 8/8] arm64: dts: sparx5: Add spi-nand devices
From: Lars Povlsen <hidden>
Date: 2020-07-02 10:15:30
Also in:
linux-devicetree, linux-spi, lkml
Subsystem:
arm/microchip (arm64) soc support, arm/microchip sparx5 soc support, the rest · Maintainers:
Conor Dooley, Nicolas Ferre, Claudiu Beznea, Steen Hegelund, Daniel Machon, Linus Torvalds
This patch add spi-nand DT nodes to the applicable Sparx5 boards. Signed-off-by: Lars Povlsen <redacted> --- arch/arm64/boot/dts/microchip/sparx5.dtsi | 20 ++++++++++++ .../arm64/boot/dts/microchip/sparx5_nand.dtsi | 32 +++++++++++++++++++ .../boot/dts/microchip/sparx5_pcb125.dts | 7 ++++ .../boot/dts/microchip/sparx5_pcb134.dts | 1 + .../boot/dts/microchip/sparx5_pcb135.dts | 1 + 5 files changed, 61 insertions(+) create mode 100644 arch/arm64/boot/dts/microchip/sparx5_nand.dtsi
diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index 2831935a489e1..21a85359d3492 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi@@ -210,6 +210,26 @@ gpio: pinctrl@6110101e0 { interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>; #interrupt-cells = <2>; + cs1_pins: cs1-pins { + pins = "GPIO_16"; + function = "si"; + }; + + cs2_pins: cs2-pins { + pins = "GPIO_17"; + function = "si"; + }; + + cs3_pins: cs3-pins { + pins = "GPIO_18"; + function = "si"; + }; + + si2_pins: si2-pins { + pins = "GPIO_39", "GPIO_40", "GPIO_41"; + function = "si2"; + }; + uart_pins: uart-pins { pins = "GPIO_10", "GPIO_11"; function = "uart";
diff --git a/arch/arm64/boot/dts/microchip/sparx5_nand.dtsi b/arch/arm64/boot/dts/microchip/sparx5_nand.dtsi
new file mode 100644
index 0000000000000..fd9523d9efbe3
--- /dev/null
+++ b/arch/arm64/boot/dts/microchip/sparx5_nand.dtsi@@ -0,0 +1,32 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries. + */ + +&gpio { + cs14_pins: cs14-pins { + pins = "GPIO_44"; + function = "si"; + }; +}; + +&mux { + /* CS14 (NAND) is on SPI2 */ + mux@e { + reg = <14>; + microchip,bus-interface = <1>; + }; +}; + +&spi0 { + pinctrl-0 = <&si2_pins>; + pinctrl-names = "default"; + spi-flash@e { + compatible = "spi-nand"; + pinctrl-0 = <&cs14_pins>; + pinctrl-names = "default"; + spi-max-frequency = <42000000>; + reg = <14>; + snps,rx-sample-delay-ns = <7>; /* Tune for speed */ + }; +};
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
index d8b5d23abfab0..94c4c3fd5a786 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb125.dts@@ -46,6 +46,13 @@ spi-flash@0 { spi-max-frequency = <8000000>; /* input clock */ reg = <0>; /* CS0 */ }; + spi-flash@1 { + compatible = "spi-nand"; + pinctrl-0 = <&cs1_pins>; + pinctrl-names = "default"; + spi-max-frequency = <8000000>; + reg = <1>; /* CS1 */ + }; }; &i2c1 {
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts
index feee4e99ff57c..45ca1af7e8500 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb134.dts@@ -5,6 +5,7 @@ /dts-v1/; #include "sparx5_pcb134_board.dtsi" +#include "sparx5_nand.dtsi" / { model = "Sparx5 PCB134 Reference Board (NAND)";
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts b/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts
index 20e409a9be196..647cdb38b1130 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb135.dts@@ -5,6 +5,7 @@ /dts-v1/; #include "sparx5_pcb135_board.dtsi" +#include "sparx5_nand.dtsi" / { model = "Sparx5 PCB135 Reference Board (NAND)";
--
2.27.0
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