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[2003:f1:33c1:f600:59a:26de:113a:463e]) by smtp.googlemail.com with ESMTPSA id u7sm4084858wrp.96.2019.08.12.10.50.23 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 12 Aug 2019 10:50:24 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, khilman@baylibre.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux.amoon@gmail.com, ottuzzi@gmail.com, narmstrong@baylibre.com, Martin Blumenstingl Subject: [PATCH 1/1] ARM: dts: meson8b: odroidc1: use the MAC address stored in the eFuse Date: Mon, 12 Aug 2019 19:50:04 +0200 Message-Id: <20190812175004.24943-2-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190812175004.24943-1-martin.blumenstingl@googlemail.com> References: <20190812175004.24943-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Odroid-C1 uses the MAC address stored in eFuse at offset 0x1b4 (which is defined as a "standard" offset for all Meson8 and Meson8b boards, but testing shows that MXQ doesn't have the eFuse values programmed and EC-100 stores it's MAC address in eMMC). Add the nvmem cell which points to the MAC address and asssign it to the Ethernet controller as "mac-address". As result of this the MAC address which is stored in the eFuse is now assigned to the Ethernet controller and consistent across reboots. Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson8b-odroidc1.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts index 90f66dc45115..a24eccc354b9 100644 --- a/arch/arm/boot/dts/meson8b-odroidc1.dts +++ b/arch/arm/boot/dts/meson8b-odroidc1.dts @@ -190,6 +190,12 @@ cpu-supply = <&vcck>; }; +&efuse { + ethernet_mac_address: mac@1b4 { + reg = <0x1b4 0x6>; + }; +}; + ðmac { status = "okay"; @@ -200,6 +206,9 @@ phy-handle = <ð_phy>; amlogic,tx-delay-ns = <4>; + nvmem-cells = <ðernet_mac_address>; + nvmem-cell-names = "mac-address"; + mdio { compatible = "snps,dwmac-mdio"; #address-cells = <1>; -- 2.22.0