From: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
Add device tree definitions for auxiliar bcm2835 devices:
* spi1
* spi2
* uart1
This also include a device to get used by the relevant
device-drivers (via a shared register) to enable/disable
the HW-block.
The aux-interrupt-register (0x7e21500) is intentionally left
out of scope, so that in the future it is still possible to
implement a separate interrupt-driver - if deemed necessary.
The spi (and also uart) drivers are able to use shared interrupts,
so there is no real need for an interrupt driver.
Signed-off-by: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/bcm2835.dtsi | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 301c73f..4e6fc61 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -158,6 +158,43 @@
arm-pmu {
compatible = "arm,arm1176-pmu";
};
+
+ aux_enable: aux_enable@0x7e215004 {
+ compatible = "brcm,bcm2835-aux";
+ reg = <0x7e215004 0x04>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ uart1: uart@7e215040 {
+ compatible = "brcm,bcm2835-aux-uart";
+ reg = <0x7e215040 0x40>;
+ interrupts = <1 29>;
+ brcm,aux-enable = <&aux_enable 1>;
+ status = "disabled";
+ };
+
+ spi1: spi@7e215080 {
+ compatible = "brcm,bcm2835-aux-spi";
+ reg = <0x7e215080 0x40>;
+ brcm,aux-enable = <&aux_enable 2>;
+ interrupts = <1 29>;
+ clocks = <&clk_spi>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ spi2: spi@7e2150c0 {
+ compatible = "brcm,bcm2835-aux-spi";
+ reg = <0x7e2150c0 0x40>;
+ brcm,aux-enable = <&aux_enable 4>;
+ interrupts = <1 29>;
+ clocks = <&clk_spi>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};
clocks {
--
1.7.10.4
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