[U-Boot] [PATCH v3] i.mx: i.mx6q: add the initial support for i.mx6q Sabre Lite board

[Wolfgang Grandegger]

On 12/26/2011 08:34 AM, Dirk Behme wrote:
> From: Jason Liu <jason.hui at linaro.org>
> 
> Add the initial support for Freescale i.MX6Q Sabre Lite board
> 
> Signed-off-by: Dirk Behme <dirk.behme at de.bosch.com>
> CC: Jason Liu <jason.hui at linaro.org>
> CC: Eric Nelson <eric.nelson at boundarydevices.com>
> ---

...

> Index: freescale-u-boot-imx.git/doc/README.mx6qsabrelite
> ===================================================================
> --- /dev/null
> +++ freescale-u-boot-imx.git/doc/README.mx6qsabrelite
> @@ -0,0 +1,67 @@
> +U-Boot for the Freescale i.MX6q SabreLite board
> +
> +This file contains information for the port of U-Boot to the Freescale
> +i.MX6q SabreLite board.
> +
> +1. Boot source, boot from SD card
> +---------------------------------
> +
> +The recent mainline U-Boot for the Freescale i.MX6q SabreLite board supports
> +boot from SD card only. However, by default, the early version of SabreLite
> +boards boot from the SPI NOR flash. These boards need to be reflashed with
> +a small SD card loader to support boot from SD card. This small SD card loader
> +will be flashed into the SPI NOR. The board will still boot from SPI NOR, but
> +the loader will in turn request the BootROM to load the U-Boot from SD card.
> +At the moment of writing, please check with Freescale on the availablity of
> +this small SD loader binary.
> +
> +To update the SPI-NOR on the SabreLite board without the Freescale
> +manufacturing tool use the following procedure:
> +
> +1. Write this SD card loader onto a large SD card using:
> +
> + sudo dd if=MX6_SPI_to_SD_loader.bin of=/dev/sXx
> +
> +Note: Replace sXx with the device representing the SD card in your system.
> +
> +Note: This writes SD card loader at address 0
> +
> +2. Put this SD card into the slot for the large SD card (SD3 on the bottom of
> +the board)
> +
> +3. Power-up the SabreLite, press 'space' to enter command mode in the U-Boot
> +(the default one the board is shipped with, starting from the SPI NOR) and
> +enter the following commands:
> +
> + MX6Q SABRELITE U-Boot > mmc dev 0
> + MX6Q SABRELITE U-Boot > mmc read 0x10800000 0 200
> + MX6Q SABRELITE U-Boot > sf probe 1
> + MX6Q SABRELITE U-Boot > sf erase 0 0x40000
> + MX6Q SABRELITE U-Boot > sf write 0x10800000 0 0x40000
> +
> +4. done.
> +
> +In case you somehow do not succeed with this procedure you will have to use
> +the Freescale manufacturing tool in order to reflash the SPI-NOR.
> +
> +Note: The board now boots from full size SD3 on the bottom of the board. NOT
> +      the micro SD4/BOOT slot on the top of the board. I.e. you have to use
> +      full size SD cards.
> +
> +This information is taken from
> +
> +https://wiki.linaro.org/Boards/MX6QSabreLite

Where can I find the "SPI_to_SD_loader.bin" image? What means early
version of SabreLite boards? How can I select boot from SD-Card on
newer versions? And will the u-boot.imx image also boot when loaded
to the SPI-NOR fash?

Wolfgang.