mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-10-21 15:08:15 +02:00
7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
43 lines
1.6 KiB
Diff
43 lines
1.6 KiB
Diff
From cce15c51f1afbb1aa9d5f7779c9f7c0a17b39701 Mon Sep 17 00:00:00 2001
|
|
From: Lukas Wunner <lukas@wunner.de>
|
|
Date: Thu, 9 May 2019 19:03:00 +0200
|
|
Subject: [PATCH] ARM: bcm283x: Enable DMA support for SPI controller
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Without this, the driver for the BCM2835 SPI controller uses interrupt
|
|
mode instead of DMA mode, incurring a significant performance penalty.
|
|
The Foundation's device tree has had these attributes for years, but for
|
|
some reason they were never upstreamed.
|
|
|
|
They were originally contributed by Noralf Trønnes and Martin Sperl:
|
|
https://github.com/raspberrypi/linux/commit/25f3e064afc8
|
|
https://github.com/raspberrypi/linux/commit/e0edb52b47e6
|
|
|
|
The DREQ numbers 6 and 7 are documented in section 4.2.1.3 of:
|
|
https://www.raspberrypi.org/app/uploads/2012/02/BCM2835-ARM-Peripherals.pdf
|
|
|
|
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
|
|
Signed-off-by: Lukas Wunner <lukas@wunner.de>
|
|
Reviewed-by: Eric Anholt <eric@anholt.net>
|
|
Reviewed-by: Martin Sperl <kernel@martin.sperl.org>
|
|
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
|
|
Cc: Martin Sperl <kernel@martin.sperl.org>
|
|
Cc: Noralf Trønnes <noralf@tronnes.org>
|
|
---
|
|
arch/arm/boot/dts/bcm283x.dtsi | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
--- a/arch/arm/boot/dts/bcm283x.dtsi
|
|
+++ b/arch/arm/boot/dts/bcm283x.dtsi
|
|
@@ -403,6 +403,8 @@
|
|
reg = <0x7e204000 0x200>;
|
|
interrupts = <2 22>;
|
|
clocks = <&clocks BCM2835_CLOCK_VPU>;
|
|
+ dmas = <&dma 6>, <&dma 7>;
|
|
+ dma-names = "tx", "rx";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
status = "disabled";
|