From: Fabio Estevam fabio.estevam@nxp.com
mx6sabresd only supports SPL mode now, so update the README file accordingly.
Signed-off-by: Fabio Estevam fabio.estevam@nxp.com --- board/freescale/mx6sabresd/README | 84 +++++++++++++-------------------------- 1 file changed, 28 insertions(+), 56 deletions(-)
diff --git a/board/freescale/mx6sabresd/README b/board/freescale/mx6sabresd/README index bc0c0d0..4b4df06 100644 --- a/board/freescale/mx6sabresd/README +++ b/board/freescale/mx6sabresd/README @@ -1,56 +1,47 @@ -How to use and build U-Boot on mx6sabresd: ----------------------------------- - -Currently there are four methods for booting mx6sabresd boards: +How to use and build U-Boot on mx6sabresd +-----------------------------------------
-1. Booting from SD card via normal U-Boot (u-boot.imx) +The following methods can be used for booting mx6sabresd boards:
-2. Booting from eMMC via normal U-Boot +1. Booting from SD card
-3. Booting via SPL (SPL and u-boot.img) +2. Booting from eMMC
-4. Booting via Falcon mode (SPL launches the kernel directly) +3. Booting via Falcon mode (SPL launches the kernel directly)
-1. Booting from SD card via normal U-Boot ------------------------------------------ +1. Booting from SD card via SPL +-------------------------------
-$ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd) +mx6sabresd_defconfig target supports mx6q/mx6dl/mx6qp sabresd variants.
-or +In order to build it:
-$ make mx6dlsabresd_defconfig (If you want to build for mx6dlsabresd) +$ make mx6sabresd_defconfig
$ make
-This will generate the image called u-boot.imx. +This will generate the SPL and u-boot.img binaries.
-- Flash the u-boot.imx binary into the SD card: +- Flash the SPL binary into the SD card:
-$ sudo dd if=u-boot.imx of=/dev/sdb bs=1K seek=1 && sync +$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 && sync
+- Flash the u-boot.img binary into the SD card:
-2. Booting from eMMC via normal U-Boot --------------------------------------- +$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 && sync
-$ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd)
-or +2. Booting from eMMC +--------------------
-$ make mx6dlsabresd_defconfig (If you want to build for mx6dlsabresd) +$ make mx6sabresd_defconfig
$ make
-This will generate the image called u-boot.imx. - -- Flash the u-boot.imx binary into the eMMC: - -Set SW6 to download mode: 00001100 +This will generate the SPL and u-boot.img binaries.
-Plug a usb cable to USB-OTG and load the u-boot image using the imx_usb_loader -tool (https://github.com/boundarydevices/imx_usb_loader): - -$ sudo ./imx_usb u-boot.imx +- Boot first from SD card as shown in the previous section
In U-boot change the eMMC partition config:
@@ -60,48 +51,29 @@ Mount the eMMC in the host PC:
=> ums 0 mmc 2
-Flash the u-boot.imx binary +- Flash SPL and u-boot.img binaries into the eMMC:
-$ sudo dd if=u-boot.imx of=/dev/sdX bs=1K seek=1 && sync +$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 && sync +$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 && sync
Set SW6 to eMMC 8-bit boot: 11010110
-3. Booting via SPL ------------------- - -Other method for building U-Boot on mx6qsabresd and mx6qpsabresd is -through SPL. In order to do so: - -$ make mx6sabresd_spl_defconfig -$ make - -This will generate the SPL image called SPL and the u-boot.img. - -- Flash the SPL image into the SD card: - -$ sudo dd if=SPL of=/dev/sdb bs=1K seek=1 && sync - -- Flash the u-boot.img image into the SD card: - -$ sudo dd if=u-boot.img of=/dev/sdbbs=1K seek=69 && sync - - -4. Booting via Falcon mode +3. Booting via Falcon mode --------------------------
-$ make mx6sabresd_spl_defconfig +$ make mx6sabresd_defconfig $ make
This will generate the SPL image called SPL and the u-boot.img.
- Flash the SPL image into the SD card:
-$ sudo dd if=SPL of=/dev/sdb bs=1K seek=1 oflag=sync status=none && sync +$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1 oflag=sync status=none && sync
- Flash the u-boot.img image into the SD card:
-$ sudo dd if=u-boot.img of=/dev/sdbbs=1K seek=69 oflag=sync status=none && sync +$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69 oflag=sync status=none && sync
Create a partition for root file system and extract it there: