On 12/26/2011 08:34 AM, Dirk Behme wrote:
From: Jason Liu jason.hui@linaro.org
Add the initial support for Freescale i.MX6Q Sabre Lite board
Signed-off-by: Dirk Behme dirk.behme@de.bosch.com CC: Jason Liu jason.hui@linaro.org CC: Eric Nelson eric.nelson@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 usefull size SD cards.+This information is taken from
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.