From 8be8576fcf2d90a8bc679bfb25a4121d0eebe0de Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 30 Aug 2017 13:25:20 -0700 Subject: [PATCH] ARM: dts: Add missing hsi node for omap4 On omap4 we're missing the hsi node with it's related "ti,hwmods" property that the SoC interconnect code needs. Note that this will only show up as a bug with "doesn't have mpu register target base" boot errors when the legacy platform data is removed. Let's also update the binding accrodingly while at it. Cc: Mark Rutland Cc: Rob Herring Reviewed-by: Sebastian Reichel Acked-by: Rob Herring Signed-off-by: Tony Lindgren --- .../devicetree/bindings/hsi/omap-ssi.txt | 13 +++++-- arch/arm/boot/dts/omap4.dtsi | 34 +++++++++++++++++++ 2 files changed, 44 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt index b8eca3c7810d..955e335e7e56 100644 --- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt +++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt @@ -1,10 +1,12 @@ OMAP SSI controller bindings -OMAP Synchronous Serial Interface (SSI) controller implements a legacy -variant of MIPI's High Speed Synchronous Serial Interface (HSI). +OMAP3's Synchronous Serial Interface (SSI) controller implements a +legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI), +while the controller found inside OMAP4 is supposed to be fully compliant +with the HSI standard. Required properties: -- compatible: Should include "ti,omap3-ssi". +- compatible: Should include "ti,omap3-ssi" or "ti,omap4-hsi" - reg-names: Contains the values "sys" and "gdd" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. @@ -27,6 +29,7 @@ Each port is represented as a sub-node of the ti,omap3-ssi device. Required Port sub-node properties: - compatible: Should be set to the following value ti,omap3-ssi-port (applicable to OMAP34xx devices) + ti,omap4-hsi-port (applicable to OMAP44xx devices) - reg-names: Contains the values "tx" and "rx" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. @@ -38,6 +41,10 @@ Required Port sub-node properties: property. If it's missing the port will not be enabled. +Optional properties: +- ti,hwmods: Shall contain TI interconnect module name if needed + by the SoC + Example for Nokia N900: ssi-controller@48058000 { diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi index 69d129b420e0..a3c4d3541e3d 100644 --- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -624,6 +624,40 @@ mmc5: mmc@480d5000 { dma-names = "tx", "rx"; }; + hsi: hsi@4a058000 { + compatible = "ti,omap4-hsi"; + reg = <0x4a058000 0x4000>, + <0x4a05c000 0x1000>; + reg-names = "sys", "gdd"; + ti,hwmods = "hsi"; + + clocks = <&hsi_fck>; + clock-names = "hsi_fck"; + + interrupts = ; + interrupt-names = "gdd_mpu"; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x4a058000 0x4000>; + + hsi_port1: hsi-port@2000 { + compatible = "ti,omap4-hsi-port"; + reg = <0x2000 0x800>, + <0x2800 0x800>; + reg-names = "tx", "rx"; + interrupts = ; + }; + + hsi_port2: hsi-port@3000 { + compatible = "ti,omap4-hsi-port"; + reg = <0x3000 0x800>, + <0x3800 0x800>; + reg-names = "tx", "rx"; + interrupts = ; + }; + }; + mmu_dsp: mmu@4a066000 { compatible = "ti,omap4-iommu"; reg = <0x4a066000 0x100>;