From mboxrd@z Thu Jan  1 00:00:00 1970
From: Max Krummenacher <max.krummenacher@toradex.com>
Date: Tue, 15 Nov 2016 09:59:22 +0000
Subject: [U-Boot] [PATCH] arm: mx6: specify SPL padding
In-Reply-To: <20161115020612.32725-1-stefan@agner.ch>
References: <20161115020612.32725-1-stefan@agner.ch>
Message-ID: <1479203961.1664.16.camel@toradex.com>
List-Id: <u-boot.lists.denx.de>
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To: u-boot@lists.denx.de

Hi Stefan

On Mon, 2016-11-14 at 18:06 -0800, Stefan Agner wrote:
> From: Stefan Agner <stefan.agner@toradex.com>
> 
> When building SPL with eMMC boot support, specify standard padding
> for payload to match the load sector during boot. This allows to
> use the u-boot-with-spl.imx build target to generate a direcly
> flashable image which can be flashed using:
> 
> ? dd if=u-boot-with-spl.imx of=/dev/mmcblk0 bs=512 skip=2
> 
> Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
> 
> ---
> 
> ?include/configs/imx6_spl.h | 6 ++++++
> ?1 file changed, 6 insertions(+)
> 
> diff --git a/include/configs/imx6_spl.h b/include/configs/imx6_spl.h
> index 76d1ca0..ca3ed19 100644
> --- a/include/configs/imx6_spl.h
> +++ b/include/configs/imx6_spl.h
> @@ -42,6 +42,12 @@
> ?#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION	1
> ?#define
> CONFIG_SYS_MONITOR_LEN??(CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS/2*1024)
> ?#define CONFIG_SPL_ABORT_ON_RAW_IMAGE
> +/*
> + * SPL starts at 1KB (ROM offset), hence we need to pad SPL up to
> 68KB so
> + * that payload (U-Boot) will be at 69KB (sector 138) on the eMMC/SD
> card.
> + * Required for targets such as u-boot-with-spl.imx.
> + */
> +#define CONFIG_SPL_PAD_TO			0x11000
> ?#endif
> ?
> ?/* SATA support */

This has been brought up already:
https://www.mail-archive.com/u-boot at lists.denx.de/msg228246.html
I agreed with Marek that this might disrupt other boot sources
(NOR/SPI/ ...) which may or may not decide to use another offset
between SPL and U-Boot.
Thus it is advisable to move that define to the individual board
configuration where one knows for what boot device one wants to
use the combined u-boot-with-spl.imx binary.

Max

P.S. Sorry for the noise to your individual mail addresses, I had
issues getting to the mailinglist through gmane.