openwrt/target/linux/ipq806x/patches-3.18/157-ARM-DT-ipq8064-Add-ADM-device-node.patch
Felix Fietkau 6cc5919e8a ipq806x: disable DMA on the SPI flash
Previous patch 6f2905eeb6ce5ddec8d12d677e1f377a940b537b enabled ADM in
the kernel, which causes a kernel panic when accessing the SPI flash.

As a workaround, We'll disable DMA for the flash for now. It was not
enabled previously anyway so we'll just leave it as is.

Reported-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 46587
2015-08-13 19:02:16 +00:00

42 lines
1.1 KiB
Diff

From 1fb18acab2d71e7e4efd9c10492edb1baf84dcc0 Mon Sep 17 00:00:00 2001
From: Andy Gross <agross@codeaurora.org>
Date: Wed, 20 May 2015 15:41:07 +0530
Subject: [PATCH] ARM: DT: ipq8064: Add ADM device node
This patch adds support for the ADM DMA on the IPQ8064 SOC
Signed-off-by: Andy Gross <agross@codeaurora.org>
---
arch/arm/boot/dts/qcom-ipq8064-ap148.dts | 4 ++++
arch/arm/boot/dts/qcom-ipq8064.dtsi | 21 +++++++++++++++++++++
2 files changed, 25 insertions(+)
--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
@@ -657,5 +657,25 @@
};
};
+ adm_dma: dma@18300000 {
+ compatible = "qcom,adm";
+ reg = <0x18300000 0x100000>;
+ interrupts = <0 170 0>;
+ #dma-cells = <1>;
+
+ clocks = <&gcc ADM0_CLK>, <&gcc ADM0_PBUS_CLK>;
+ clock-names = "core", "iface";
+
+ resets = <&gcc ADM0_RESET>,
+ <&gcc ADM0_PBUS_RESET>,
+ <&gcc ADM0_C0_RESET>,
+ <&gcc ADM0_C1_RESET>,
+ <&gcc ADM0_C2_RESET>;
+ reset-names = "clk", "pbus", "c0", "c1", "c2";
+ qcom,ee = <0>;
+
+ status = "disabled";
+ };
+
};
};