From 54d63bb1ad4fbf95e7136a4fef819e4631adbc39 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 18 May 2017 08:15:04 -0300 Subject: [PATCH] mx6sabresd: Update to SPL only mode mx6sabresd only supports SPL mode now, so update the README file accordingly. Signed-off-by: Fabio Estevam --- 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: -- 2.7.4