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From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/2] omapl138_lcdk: Set uboot raw mmc sector to 0x41
Date: Mon, 13 Feb 2017 08:23:59 -0500	[thread overview]
Message-ID: <20170213132359.GW26129@bill-the-cat> (raw)
In-Reply-To: <20170213104457.28125-3-ahaslam@baylibre.com>

On Mon, Feb 13, 2017 at 11:44:57AM +0100, Axel Haslam wrote:
> The uboot binary on the AIS file starts at offset 0x8000.
> This would be sector 0x40 on a mmc card with 512 bytes per
> sector: 0x8000/0x200 = 0x40.
> 
> But because we usually skip the first mmc sector to preserve
> the partition table, the ais image is written starting
> on sector 0x1, and the u-boot binary ends up at sector 0x41.
> 
> Set the address of the u-boot binary to 0x41 so that spl
> can correctly jump to it.
> 
> Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
> ---
>  configs/omapl138_lcdk_defconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/configs/omapl138_lcdk_defconfig b/configs/omapl138_lcdk_defconfig
> index d20af19..a249ebd 100644
> --- a/configs/omapl138_lcdk_defconfig
> +++ b/configs/omapl138_lcdk_defconfig
> @@ -12,7 +12,7 @@ CONFIG_VERSION_VARIABLE=y
>  # CONFIG_DISPLAY_BOARDINFO is not set
>  CONFIG_BOARD_EARLY_INIT_F=y
>  CONFIG_SPL=y
> -CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0xb5
> +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x41

Since we're changing a default here, and one that will lead to
non-booting boards if you don't notice, where did the old value come
from, and is it actually in use anywhere?  Thanks!

-- 
Tom
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  reply	other threads:[~2017-02-13 13:23 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-13 10:44 [U-Boot] [PATCH 0/2] omapl: mmc boot help Axel Haslam
2017-02-13 10:44 ` [U-Boot] [PATCH 1/2] da850: Add instructions to copy AIS image to an MMC card Axel Haslam
2017-02-13 10:44 ` [U-Boot] [PATCH 2/2] omapl138_lcdk: Set uboot raw mmc sector to 0x41 Axel Haslam
2017-02-13 13:23   ` Tom Rini [this message]
2017-02-13 14:14     ` Axel Haslam
2017-02-13 14:17       ` Tom Rini
2017-02-13 14:23         ` Axel Haslam
2017-02-13 16:11           ` Axel Haslam
2017-02-13 17:07             ` Tom Rini

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