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domenico
2025-06-24 14:35:53 +02:00
commit c06fb25d1f
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81
target/linux/pistachio/patches-6.6/903-MIPS-DTS-img-marduk-Add-NXP-SC16IS752IPW.patch Normal file
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@@ -0,0 +1,81 @@
From ad4eba0c36ce8af6ab9ea1bc163e4c1ac7c271c3 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 15 Aug 2020 16:09:02 +0200
Subject: [PATCH 903/904] MIPS: DTS: img: marduk: Add NXP SC16IS752IPW
Add NXP SC16IS752IPW SPI-UART controller to device tree.
This controller drives 2 UARTs and 7 LEDs on the board.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
arch/mips/boot/dts/img/pistachio_marduk.dts | 51 +++++++++++++++++++++
1 file changed, 51 insertions(+)
--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
@@ -46,6 +46,46 @@
regulator-max-microvolt = <1800000>;
};
+ /* EXT clock from ca8210 is fed to sc16is752 */
+ ca8210_ext_clk: ca8210-ext-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <16000000>;
+ clock-output-names = "ca8210_ext_clock";
+ };
+
+ gpioleds {
+ compatible = "gpio-leds";
+ user1 {
+ label = "marduk:red:user1";
+ gpios = <&sc16is752 0 GPIO_ACTIVE_LOW>;
+ };
+ user2 {
+ label = "marduk:red:user2";
+ gpios = <&sc16is752 1 GPIO_ACTIVE_LOW>;
+ };
+ user3 {
+ label = "marduk:red:user3";
+ gpios = <&sc16is752 2 GPIO_ACTIVE_LOW>;
+ };
+ user4 {
+ label = "marduk:red:user4";
+ gpios = <&sc16is752 3 GPIO_ACTIVE_LOW>;
+ };
+ user5 {
+ label = "marduk:red:user5";
+ gpios = <&sc16is752 4 GPIO_ACTIVE_LOW>;
+ };
+ user6 {
+ label = "marduk:red:user6";
+ gpios = <&sc16is752 5 GPIO_ACTIVE_LOW>;
+ };
+ user7 {
+ label = "marduk:red:user7";
+ gpios = <&sc16is752 6 GPIO_ACTIVE_LOW>;
+ };
+ };
+
led-controller {
compatible = "pwm-leds";
@@ -96,6 +136,17 @@
extclock-freq = <16000000>;
extclock-gpio = <2>;
};
+
+ sc16is752: sc16is752@1 {
+ compatible = "nxp,sc16is752";
+ reg = <1>;
+ clocks = <&ca8210_ext_clk>;
+ spi-max-frequency = <4000000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
};
&spfi1 {