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Fri, 31 Mar 2023 03:56:11 -0700 (PDT) Message-ID: <82091587-3d4a-eec2-b3d0-7635dc9ef7b0@gmail.com> Date: Fri, 31 Mar 2023 12:56:10 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [PATCH net-next 07/10] arm64: dts: mt7986: move ilm in a dedicated node Content-Language: en-US To: Lorenzo Bianconi , netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-mediatek@lists.infradead.org, nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, lorenzo.bianconi@redhat.com, daniel@makrotopia.org, krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org, devicetree@vger.kernel.org References: <5e1168bc8fd29f4871f81d8e4a9fd43a2c3be146.1679330630.git.lorenzo@kernel.org> From: Matthias Brugger In-Reply-To: <5e1168bc8fd29f4871f81d8e4a9fd43a2c3be146.1679330630.git.lorenzo@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230331_035618_403317_053FD480 X-CRM114-Status: GOOD ( 13.89 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 20/03/2023 17:58, Lorenzo Bianconi wrote: > Since the ilm memory region is not part of the RAM SoC, move ilm in a > deidicated syscon node. > This patch helps to keep backward-compatibility with older version of > uboot codebase where we have a limit of 8 reserved-memory dts child > nodes. > > Signed-off-by: Lorenzo Bianconi Acked-by: Matthias Brugger > --- > arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 34 +++++++++++------------ > 1 file changed, 16 insertions(+), 18 deletions(-) > > diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi > index 668b6cfa6a3d..a0d96d232ee5 100644 > --- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi > +++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi > @@ -89,16 +89,6 @@ wo_emi1: wo-emi@4fd40000 { > no-map; > }; > > - wo_ilm0: wo-ilm@151e0000 { > - reg = <0 0x151e0000 0 0x8000>; > - no-map; > - }; > - > - wo_ilm1: wo-ilm@151f0000 { > - reg = <0 0x151f0000 0 0x8000>; > - no-map; > - }; > - > wo_data: wo-data@4fd80000 { > reg = <0 0x4fd80000 0 0x240000>; > no-map; > @@ -454,11 +444,10 @@ wed0: wed@15010000 { > reg = <0 0x15010000 0 0x1000>; > interrupt-parent = <&gic>; > interrupts = ; > - memory-region = <&wo_emi0>, <&wo_ilm0>, <&wo_dlm0>, > - <&wo_data>; > - memory-region-names = "wo-emi", "wo-ilm", "wo-dlm", > - "wo-data"; > + memory-region = <&wo_emi0>, <&wo_dlm0>, <&wo_data>; > + memory-region-names = "wo-emi", "wo-dlm", "wo-data"; > mediatek,wo-ccif = <&wo_ccif0>; > + mediatek,wo-ilm = <&wo_ilm0>; > mediatek,wo-cpuboot = <&wo_cpuboot>; > }; > > @@ -468,11 +457,10 @@ wed1: wed@15011000 { > reg = <0 0x15011000 0 0x1000>; > interrupt-parent = <&gic>; > interrupts = ; > - memory-region = <&wo_emi1>, <&wo_ilm1>, <&wo_dlm1>, > - <&wo_data>; > - memory-region-names = "wo-emi", "wo-ilm", "wo-dlm", > - "wo-data"; > + memory-region = <&wo_emi1>, <&wo_dlm1>, <&wo_data>; > + memory-region-names = "wo-emi", "wo-dlm", "wo-data"; > mediatek,wo-ccif = <&wo_ccif1>; > + mediatek,wo-ilm = <&wo_ilm1>; > mediatek,wo-cpuboot = <&wo_cpuboot>; > }; > > @@ -490,6 +478,16 @@ wo_ccif1: syscon@151ad000 { > interrupts = ; > }; > > + wo_ilm0: syscon@151e0000 { > + compatible = "mediatek,mt7986-wo-ilm", "syscon"; > + reg = <0 0x151e0000 0 0x8000>; > + }; > + > + wo_ilm1: syscon@151f0000 { > + compatible = "mediatek,mt7986-wo-ilm", "syscon"; > + reg = <0 0x151f0000 0 0x8000>; > + }; > + > wo_cpuboot: syscon@15194000 { > compatible = "mediatek,mt7986-wo-cpuboot", "syscon"; > reg = <0 0x15194000 0 0x1000>;