From mboxrd@z Thu Jan 1 00:00:00 1970 From: kernel@martin.sperl.org (kernel at martin.sperl.org) Date: Fri, 4 Sep 2015 09:41:46 +0000 Subject: [PATCH v5 2/6] ARM: bcm2835: add DT for the bcm2835 auxiliar devices In-Reply-To: <1441359711-2800-1-git-send-email-kernel@martin.sperl.org> References: <1441359711-2800-1-git-send-email-kernel@martin.sperl.org> Message-ID: <1441359711-2800-3-git-send-email-kernel@martin.sperl.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Martin Sperl 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 --- 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 at 0x7e215004 { + compatible = "brcm,bcm2835-aux"; + reg = <0x7e215004 0x04>; + #address-cells = <1>; + #size-cells = <0>; + }; + + uart1: uart at 7e215040 { + compatible = "brcm,bcm2835-aux-uart"; + reg = <0x7e215040 0x40>; + interrupts = <1 29>; + brcm,aux-enable = <&aux_enable 1>; + status = "disabled"; + }; + + spi1: spi at 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 at 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