79 lines
2.3 KiB
Diff
79 lines
2.3 KiB
Diff
From 4c7a8e9e40d915c61df188d6b9f82836b616bd4f Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Tue, 16 Jan 2024 16:05:18 +0000
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Subject: [PATCH 1259/1295] ARM: dts: rp1: Add I2C timings
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Add SCL rise and fall times, to allow the derivation of timings at
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arbitrary speeds.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/rp1.dtsi | 14 ++++++++++++++
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1 file changed, 14 insertions(+)
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--- a/arch/arm/boot/dts/rp1.dtsi
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+++ b/arch/arm/boot/dts/rp1.dtsi
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@@ -305,6 +305,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C0 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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@@ -313,6 +315,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C1 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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@@ -321,6 +325,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C2 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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@@ -329,6 +335,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C3 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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@@ -337,6 +345,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C4 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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@@ -345,6 +355,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C5 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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@@ -353,6 +365,8 @@
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compatible = "snps,designware-i2c";
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interrupts = <RP1_INT_I2C6 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rp1_clocks RP1_CLK_SYS>;
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+ i2c-scl-rising-time-ns = <65>;
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+ i2c-scl-falling-time-ns = <100>;
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status = "disabled";
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};
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