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Date:	Sun, 3 Apr 2016 23:53:53 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Florian Fainelli <f.fainelli@...il.com>
Cc:	linux-mtd@...ts.infradead.org, Kamal Dasu <kdasu.kdev@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Simon Arlott <simon@...e.lp0.eu>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>,
	"open list:BROADCOM STB NAND FLASH DRIVER" 
	<bcm-kernel-feedback-list@...adcom.com>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Richard Weinberger <richard@....at>
Subject: Re: [PATCH] mtd: brcmnand: Add support for v6.2 controllers

+ Boris, Richard

On Thu, Mar 10, 2016 at 03:34:16PM -0800, Florian Fainelli wrote:
> Document and match the brcm,brcmnand-v6.2 compatible string, the controller has
> a register layout identical to the v6.0 version and supports prefetch. Update the
> command shift logic to account for v6.2 controller which are the first ones to
> use a shift of 0 (6.1 used a shift of 24).

Ah yes, another blip in the ever-shifting register layout of this
controller. Fun!

> Signed-off-by: Kamal Dasu <kdasu.kdev@...il.com>
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>

Acked-by: Brian Norris <computersforpeace@...il.com>

> ---
>  Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt | 1 +
>  drivers/mtd/nand/brcmnand/brcmnand.c                    | 3 ++-
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
> index c2546ced9c02..deb24cbdda82 100644
> --- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
> +++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
> @@ -24,6 +24,7 @@ Required properties:
>                           brcm,brcmnand-v5.0
>                           brcm,brcmnand-v6.0
>                           brcm,brcmnand-v6.1
> +                         brcm,brcmnand-v6.2
>                           brcm,brcmnand-v7.0
>                           brcm,brcmnand-v7.1
>                           brcm,brcmnand
> diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
> index e0528397306a..0b7a698cc233 100644
> --- a/drivers/mtd/nand/brcmnand/brcmnand.c
> +++ b/drivers/mtd/nand/brcmnand/brcmnand.c
> @@ -601,7 +601,7 @@ static void brcmnand_wr_corr_thresh(struct brcmnand_host *host, u8 val)
>  
>  static inline int brcmnand_cmd_shift(struct brcmnand_controller *ctrl)
>  {
> -	if (ctrl->nand_version < 0x0700)
> +	if (ctrl->nand_version < 0x0602)
>  		return 24;
>  	return 0;
>  }
> @@ -2115,6 +2115,7 @@ static const struct of_device_id brcmnand_of_match[] = {
>  	{ .compatible = "brcm,brcmnand-v5.0" },
>  	{ .compatible = "brcm,brcmnand-v6.0" },
>  	{ .compatible = "brcm,brcmnand-v6.1" },
> +	{ .compatible = "brcm,brcmnand-v6.2" },
>  	{ .compatible = "brcm,brcmnand-v7.0" },
>  	{ .compatible = "brcm,brcmnand-v7.1" },
>  	{},
> -- 
> 2.1.0
> 

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