[PATCH v2 6/8] arm64: dts: marvell: use aliases for SPI busses on Armada 7K/8K
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Tue Jan 2 06:55:56 PST 2018
We are currently using the cell-index DT property to assign SPI bus
numbers. This property is specific to the spi-orion driver, and
requires each SPI controller to have a unique ID defined in the Device
Tree.
As we are about to merge armada-cp110-master.dtsi and
armada-cp110-slave.dtsi into a single file, those cell-index
properties that differ between the master CP110 and the slave CP110
are a difference that would have to be handled.
In order to avoid this, we switch to using the "aliases" DT node to
assign a unique number to each SPI controller. This is more generic,
and directly handled by the SPI core.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
arch/arm64/boot/dts/marvell/armada-70x0.dtsi | 2 ++
arch/arm64/boot/dts/marvell/armada-80x0.dtsi | 4 ++++
arch/arm64/boot/dts/marvell/armada-ap806.dtsi | 2 +-
arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi | 2 --
arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi | 2 --
5 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/marvell/armada-70x0.dtsi b/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
index 0e1a1e5be399..815e64b3a874 100644
--- a/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
@@ -50,6 +50,8 @@
aliases {
gpio1 = &cpm_gpio1;
gpio2 = &cpm_gpio2;
+ spi1 = &cpm_spi0;
+ spi2 = &cpm_spi1;
};
};
diff --git a/arch/arm64/boot/dts/marvell/armada-80x0.dtsi b/arch/arm64/boot/dts/marvell/armada-80x0.dtsi
index b280ddd3c397..de9c34333cd4 100644
--- a/arch/arm64/boot/dts/marvell/armada-80x0.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-80x0.dtsi
@@ -51,6 +51,10 @@
aliases {
gpio1 = &cps_gpio1;
gpio2 = &cpm_gpio2;
+ spi1 = &cpm_spi0;
+ spi2 = &cpm_spi1;
+ spi3 = &cps_spi0;
+ spi4 = &cps_spi1;
};
};
diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
index 0575207cafee..f9b66b81f9fc 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
@@ -58,6 +58,7 @@
serial0 = &uart0;
serial1 = &uart1;
gpio0 = &ap_gpio;
+ spi0 = &spi0;
};
psci {
@@ -203,7 +204,6 @@
reg = <0x510600 0x50>;
#address-cells = <1>;
#size-cells = <0>;
- cell-index = <0>;
interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ap_clk 3>;
status = "disabled";
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index f89053577bcc..162e6c228bd9 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -280,7 +280,6 @@
reg = <0x700600 0x50>;
#address-cells = <0x1>;
#size-cells = <0x0>;
- cell-index = <1>;
clocks = <&cpm_clk 1 21>;
status = "disabled";
};
@@ -290,7 +289,6 @@
reg = <0x700680 0x50>;
#address-cells = <1>;
#size-cells = <0>;
- cell-index = <2>;
clocks = <&cpm_clk 1 21>;
status = "disabled";
};
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index a658b72b0229..207b6f444e24 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -281,7 +281,6 @@
reg = <0x700600 0x50>;
#address-cells = <0x1>;
#size-cells = <0x0>;
- cell-index = <3>;
clocks = <&cps_clk 1 21>;
status = "disabled";
};
@@ -291,7 +290,6 @@
reg = <0x700680 0x50>;
#address-cells = <1>;
#size-cells = <0>;
- cell-index = <4>;
clocks = <&cps_clk 1 21>;
status = "disabled";
};
--
2.14.3
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