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Date:   Thu, 23 Feb 2017 10:37:07 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Steve Lin <steven.lin1@...adcom.com>, hauke@...ke-m.de,
        jon.mason@...adcom.com, robh+dt@...nel.org, mark.rutland@....com,
        linux@...linux.org.uk
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, bcm-kernel-feedback-list@...adcom.com
Subject: Re: [PATCH 1/1] ARM: dts: BCM953012HR: Initial Checkin

On 02/22/2017 10:14 PM, Steve Lin wrote:
> Initial version of DTS to support Broadcom BCM953012HR Northstar
> HR platform, similar to, but not the same as existing 953012K.
>
> Signed-off-by: Steve Lin <steven.lin1@...adcom.com>
> ---
>  arch/arm/boot/dts/Makefile        |   1 +
>  arch/arm/boot/dts/bcm953012hr.dts | 115 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 116 insertions(+)
>  create mode 100644 arch/arm/boot/dts/bcm953012hr.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 01d178a..c64ca3d 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -94,6 +94,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
>  	bcm94708.dtb \
>  	bcm94709.dtb \
>  	bcm953012er.dtb \
> +	bcm953012hr.dtb \
>  	bcm953012k.dtb
>  dtb-$(CONFIG_ARCH_BCM_53573) += \
>  	bcm47189-tenda-ac9.dtb
> diff --git a/arch/arm/boot/dts/bcm953012hr.dts b/arch/arm/boot/dts/bcm953012hr.dts
> new file mode 100644
> index 0000000..c332277
> --- /dev/null
> +++ b/arch/arm/boot/dts/bcm953012hr.dts
> @@ -0,0 +1,115 @@
> +/*
> + *  BSD LICENSE
> + *
> + *  Copyright(c) 2017 Broadcom
> + *
> + *  Redistribution and use in source and binary forms, with or without
> + *  modification, are permitted provided that the following conditions
> + *  are met:
> + *
> + *    * Redistributions of source code must retain the above copyright
> + *      notice, this list of conditions and the following disclaimer.
> + *    * Redistributions in binary form must reproduce the above copyright
> + *      notice, this list of conditions and the following disclaimer in
> + *      the documentation and/or other materials provided with the
> + *      distribution.
> + *    * Neither the name of Broadcom nor the names of its contributors
> + *      may be used to endorse or promote products derived from this
> + *      software without specific prior written permission.
> + *
> + *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +/dts-v1/;
> +
> +#include "bcm4708.dtsi"
> +
> +/ {
> +	model = "NorthStar HR (BCM953012HR)";
> +	compatible = "brcm,bcm953012hr", "brcm,brcm53012", "brcm,bcm4708";
> +
> +	aliases {
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	memory {
> +		reg = <0x80000000 0x10000000>;
> +	};
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};

You don't need this.
7b790d3b2943 ("ARM: dts: BCM5301X: Enable UART by default for BCM4708(1), BCM4709(4) & BCM53012")


> +&nand {
> +	nandcs@0 {
> +		compatible = "brcm,nandcs";
> +		reg = <0>;
> +		nand-on-flash-bbt;
> +
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		nand-ecc-strength = <4>;
> +		nand-ecc-step-size = <512>;

Can you just include bcm5301x-nand-cs0-bch4.dtsi?


> +
> +		partition@0 {
> +			label = "nboot";
> +			reg = <0x00000000 0x00200000>;
> +			read-only;
> +		};
> +		partition@...000 {
> +			label = "nenv";
> +			reg = <0x00200000 0x00400000>;
> +		};
> +		partition@...000 {
> +			label = "nsystem";
> +			reg = <0x00600000 0x00a00000>;
> +		};
> +		partition@...0000 {
> +			label = "nrootfs";
> +			reg = <0x01000000 0x07000000>;
> +		};

These could go to &nandcs with above dtsi include.


> +	};
> +};
> +
> +&spi_nor {
> +	status = "okay";
> +	spi-max-frequency = <62500000>;
> +	m25p,default-addr-width = <3>;
> +
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	partition@0 {
> +		label = "boot";
> +		reg = <0x00000000 0x000d0000>;
> +	};
> +	partition@...0 {
> +		label = "env";
> +		reg = <0x000d0000 0x00030000>;
> +	};
> +	partition@...000 {
> +		label = "system";
> +		reg = <0x00100000 0x00600000>;
> +	};
> +	partition@...000 {
> +		label = "rootfs";
> +		reg = <0x00700000 0x00900000>;
> +	};
> +};

This is a bit uncommon for me to have the same partitions on both flash device.
Can you provide some extra description of this setup, please?

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