Message ID | 20161005161811.GA17211@vaio-ubuntu |
---|---|
State | New |
Headers | show
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[83.6.141.11]) by smtp.gmail.com with ESMTPSA id vh6sm9801898wjb.0.2016.10.05.09.17.03 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 05 Oct 2016 09:17:03 -0700 (PDT) Date: Wed, 5 Oct 2016 18:18:11 +0200 From: =?us-ascii?B?PT9VVEYtOD9xP1Bhd2U9QzU9ODI9MjBKYXJvc3o/PQ==?= <paweljarosz3691@gmail.com> To: huangtao@rock-chips.com, heiko@sntech.de, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: [PATCH v2] ARM: dts: rockchip: Reserve unusable memory region on rk3066 Message-ID: <20161005161811.GA17211@vaio-ubuntu> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161005_091727_210238_128BED46 X-CRM114-Status: UNSURE ( 8.98 ) X-CRM114-Notice: Please train this message. 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diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi index 0d0dae3..44c8956 100644 --- a/arch/arm/boot/dts/rk3066a.dtsi +++ b/arch/arm/boot/dts/rk3066a.dtsi @@ -93,6 +93,19 @@ }; }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + /* + * The rk3066 cannot use the memory area above 0x9F000000 + * for some unknown reason. + */ + unusable@9F000000 { + reg = <0x9F000000 0x1000000>; + }; + }; + i2s0: i2s@10118000 { compatible = "rockchip,rk3066-i2s"; reg = <0x10118000 0x2000>;
For some reason accessing memory region above 0x9F000000 freezes system on rk3066. There is similiar bug on later rockchip soc (rk3288) solved same way. Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com> --- Changes in v2: - updated commit message. arch/arm/boot/dts/rk3066a.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+)