[openwrt/openwrt] ipq40xx: fritzbox-7530.dts: increase dma coherent pool size

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/bc205a34a48d2455a011cd65fbad7430a02ff8e4

commit bc205a34a48d2455a011cd65fbad7430a02ff8e4
Author: Martin Schiller <ms.3headeddevs at gmail.com>
AuthorDate: Wed Aug 21 08:39:30 2019 +0200

    ipq40xx: fritzbox-7530.dts: increase dma coherent pool size
    
    This is needed by the mei driver to be able to download the firmware.
    
    Signed-off-by: Martin Schiller <ms.3headeddevs at gmail.com>
    Signed-off-by: Andre Heider <a.heider at gmail.com>
---
 .../ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts
index a0ceb299b4..71166231a9 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts
@@ -9,6 +9,10 @@
 	model = "AVM FRITZ!Box 7530";
 	compatible = "avm,fritzbox-7530";
 
+	chosen {
+		bootargs-append = " coherent_pool=4M";
+	};
+
 	aliases {
 		led-boot = &power_green;
 		led-failsafe = &info_red;