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mx6sabresd: README: Add eMMC boot configuration

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Explain how to flash the eMMC and how to boot from it.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
This commit is contained in:
Breno Lima 2017-04-10 09:45:29 -03:00 • committed by Stefano Babic
parent 52526ba42e
commit ce2f9def82
1 changed files with 47 additions and 8 deletions
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55
board/freescale/mx6sabresd/README
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@ -1,17 +1,19 @@
How to use and build U-Boot on mx6sabresd: How to use and build U-Boot on mx6sabresd:
---------------------------------- ----------------------------------
Currently there are three methods for booting mx6sabresd boards: Currently there are four methods for booting mx6sabresd boards:
1. Booting via Normal U-Boot (u-boot.imx) 1. Booting from SD card via normal U-Boot (u-boot.imx)
2. Booting via SPL (SPL and u-boot.img) 2. Booting from eMMC via normal U-Boot
3. Booting via Falcon mode (SPL launches the kernel directly) 3. Booting via SPL (SPL and u-boot.img)
4. Booting via Falcon mode (SPL launches the kernel directly)
1. Booting via Normal U-Boot 1. Booting from SD card via normal U-Boot
---------------------------- -----------------------------------------
$ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd) $ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd)
@ -28,7 +30,44 @@ This will generate the image called u-boot.imx.
$ sudo dd if=u-boot.imx of=/dev/sdb bs=1K seek=1 && sync $ sudo dd if=u-boot.imx of=/dev/sdb bs=1K seek=1 && sync
2. Booting via SPL 2. Booting from eMMC via normal U-Boot
--------------------------------------
$ make mx6qsabresd_defconfig (If you want to build for mx6qsabresd)
or
$ make mx6dlsabresd_defconfig (If you want to build for mx6dlsabresd)
$ 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
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
In U-boot change the eMMC partition config:
=> mmc partconf 2 1 0 0
Mount the eMMC in the host PC:
=> ums 0 mmc 2
Flash the u-boot.imx binary
$ sudo dd if=u-boot.imx of=/dev/sdX bs=1K seek=1 && sync
Set SW6 to eMMC 8-bit boot: 11010110
3. Booting via SPL
------------------ ------------------
Other method for building U-Boot on mx6qsabresd and mx6qpsabresd is Other method for building U-Boot on mx6qsabresd and mx6qpsabresd is
@ -48,7 +87,7 @@ $ sudo dd if=SPL of=/dev/sdb bs=1K seek=1 && sync
$ sudo dd if=u-boot.img of=/dev/sdbbs=1K seek=69 && sync $ sudo dd if=u-boot.img of=/dev/sdbbs=1K seek=69 && sync
3. Booting via Falcon mode 4. Booting via Falcon mode
-------------------------- --------------------------
$ make mx6sabresd_spl_defconfig $ make mx6sabresd_spl_defconfig