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https://github.com/AsahiLinux/u-boot
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9e759ce904
Add Falcon mode support to boot Linux directly after SPL. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
124 lines
2.8 KiB
Text
124 lines
2.8 KiB
Text
BTicino Mamoj board:
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===================
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Build:
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$ make mrproper
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$ make imx6dl_mamoj_defconfig
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$ make
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This will generate the SPL image called SPL and the u-boot-dtb.img.
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The following methods can be used for booting Mamoj boards:
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1. USB SDP boot
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2. eMMC boot (via DFU)
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3. Falcon mode
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1. USB SDP boot:
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---------------
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- Build imx_usb_loader
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$ git clone git://github.com/boundarydevices/imx_usb_loader.git
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$ cd imx_usb_loader
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$ make
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- Build the BSP and copy SPL, u-boot-dtb.img in imx_usb_loader directory
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- Put the board in "Serial Download Mode"
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- Plug-in USB-to-Serial, Open minicom 1152008N1 and USB OTG cables to Host
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- Turn-on board
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- Identify VID/PID using lsusb
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Bus 001 Device 010: ID 15a2:0061 Freescale Semiconductor, Inc. i.MX 6Solo/6DualLite SystemOnChip in RecoveryMode
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- Update the conf files
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imx_usb.conf
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0x15a2:0x0061, mx6_usb_rom.conf, 0x0525:0xb4a4, mx6_usb_sdp_spl.conf
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mx6_usb_rom.conf
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mx6_usb
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hid,1024,0x910000,0x10000000,512M,0x00900000,0x40000
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SPL:jump header2
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mx6_usb_sdp_spl.conf
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mx6_spl_sdp
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hid,uboot_header,1024,0x910000,0x10000000,512M,0x00900000,0x40000
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u-boot-dtb.img:jump header2
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- Launch the loader
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$ ./imx_usb
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We can see U-Boot boot from USB SDP on minicom
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2. eMMC boot via DFU:
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--------------------
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Once booted from USB SDP, program the eMMC as below(make sure to connect USB OTG)
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- Change eMMC partition config
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=> mmc partconf 2 1 0 0
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- Partition eMMC on host
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=> ums 0 mmc 2
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Host will able to detect the eMMC disk as UMS, partition the same.
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- Program SPL
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=> setenv dfu_alt_info $dfu_alt_info_spl
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=> dfu 0 mmc 2
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At Host
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# dfu-util -D SPL -a spl
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- Program u-boot-dtb.img
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=> setenv dfu_alt_info $dfu_alt_info_uboot
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=> dfu 0 mmc 2
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At Host
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# dfu-util -D u-boot-dtb.img -a u-boot
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Poweroff and Poweron the board and see U-Boot booting from eMMC.
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3. Falcon mode:
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--------------
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- Skip 10M space and create dual partitions for eMMC, start sector is 20480
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Partition Map for MMC device 2 -- Partition Type: DOS
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Part Start Sector Num Sectors UUID Type
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1 20480 131072 c52e78be-01 83
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2 151552 7581696 c52e78be-02 83
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- Write uImage
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=> fatload mmc 2:1 $kernel_addr_r uImage
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=> mmc write $kernel_addr_r 0x1000 0x4000
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- Write dtb and args
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=> setenv bootargs console=ttymxc2,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait rw quiet
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=> fatload mmc 2:1 $fdt_addr_r imx6dl-mamoj.dtb
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=> spl export fdt $kernel_addr_r - $fdt_addr_r
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=> mmc write 0x13000000 0x800 0x800
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Poweroff and Poweron the board and see Linux booting directly after SPL.
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--
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Jagan Teki <jagan@amarulasolutions.com>
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03/12/18
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