[PATCH 08/17] ARM: dts: Add missing hsi node for omap4

Tony Lindgren
2017-08-30T15:19:44Z

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 <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Signed-off-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
---
Documentation/devicetree/bindings/hsi/omap-ssi.txt | 7 ++++-
arch/arm/boot/dts/omap4.dtsi | 34 ++++++++++++++++++++++
2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt
--- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt
+++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt
@@ -4,7 +4,7 @@ OMAP Synchronous Serial Interface (SSI) controller implements a legacy
variant of MIPI's High Speed Synchronous Serial Interface (HSI).

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 +27,7 @@ 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-ssi-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 +39,10 @@ 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
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -632,6 +632,40 @@
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 = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ 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 = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ hsi_port2: hsi-port@3000 {
+ compatible = "ti,omap4-hsi-port";
+ reg = <0x3000 0x800>,
+ <0x3800 0x800>;
+ reg-names = "tx", "rx";
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
mmu_dsp: mmu@4a066000 {
compatible = "ti,omap4-iommu";
reg = <0x4a066000 0x100>;