Blame - board/ti/am65x/README - filogic/uboot

$ make CROSS_COMPILE=aarch64-linux-gnu- ATF=<path to ATF dir>/build/k3/generic/release/bl31.bin TEE=<path to OPTEE OS dir>/out/arm-plat-k3/core/tee-pager_v2.bin O=/tmp/a53

Lokesh Vutla

029f921

2018-08-27 15:59:06 +0530

[diff] [blame]

Target Images

--------------

Copy the below images to an SD card and boot:

Lokesh Vutla

60f9c28

2018-11-02 19:51:11 +0530

[diff] [blame]

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- sysfw.itb from step 1

Lokesh Vutla

029f921

2018-08-27 15:59:06 +0530

[diff] [blame]

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- tiboot3.bin from step 4.1

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- tispl.bin, u-boot.img from 4.2

Lokesh Vutla

60f9c28

2018-11-02 19:51:11 +0530

[diff] [blame]

Image formats:

--------------

- tiboot3.bin:

+-----------------------+

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| X.509 |

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| Certificate |

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| +-------------------+ |

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| | | |

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| | R5 | |

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| | u-boot-spl.bin | |

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| | | |

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| +-------------------+ |

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| | | |

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| | FIT header | |

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| | +---------------+ | |

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| | | | | |

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| | +---------------+ | |

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| +-------------------+ |

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+-----------------------+

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- tispl.bin

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+-----------------------+

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| |

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| FIT HEADER |

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| +-------------------+ |

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| | | |

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| | A53 ATF | |

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| +-------------------+ |

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| | | |

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| | A53 OPTEE | |

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| +-------------------+ |

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| | | |

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| | A53 SPL | |

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| +-------------------+ |

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| | | |

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| | SPL DTB 1...N | |

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| +-------------------+ |

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+-----------------------+

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- sysfw.itb

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+-----------------------+

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| |

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| FIT HEADER |

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| +-------------------+ |

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| | | |

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| | sysfw.bin | |

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| +-------------------+ |

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| | | |

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| | board config | |

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| +-------------------+ |

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| | | |

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| | PM config | |

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| +-------------------+ |

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| | | |

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| | RM config | |

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| +-------------------+ |

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| | | |

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| | Secure config | |

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| +-------------------+ |

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+-----------------------+

Faiz Abbas

216a0d7

2019-06-04 17:55:55 -0500

[diff] [blame]

eMMC:

-----

ROM supports booting from eMMC from boot0 partition offset 0x0

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Flashing images to eMMC:

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The following commands can be used to download tiboot3.bin, tispl.bin,

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u-boot.img, and sysfw.itb from an SD card and write them to the eMMC boot0

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partition at respective addresses.

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=> mmc dev 0 1

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=> fatload mmc 1 ${loadaddr} tiboot3.bin

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=> mmc write ${loadaddr} 0x0 0x400

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=> fatload mmc 1 ${loadaddr} tispl.bin

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=> mmc write ${loadaddr} 0x400 0x1000

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=> fatload mmc 1 ${loadaddr} u-boot.img

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=> mmc write ${loadaddr} 0x1400 0x2000

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=> fatload mmc 1 ${loadaddr} sysfw.itb

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=> mmc write ${loadaddr} 0x3600 0x800

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To give the ROM access to the boot partition, the following commands must be

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used for the first time:

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=> mmc partconf 0 1 1 1

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=> mmc bootbus 0 1 0 0

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To create a software partition for the rootfs, the following command can be

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used:

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=> gpt write mmc 0 ${partitions}

eMMC layout:

boot0 partition (8 MB) user partition

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0x0+----------------------------------+ 0x0+-------------------------+

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| tiboot3.bin (512 KB) | | |

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0x400+----------------------------------+ | |

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| tispl.bin (2 MB) | | |

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0x1400+----------------------------------+ | rootfs |

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| u-boot.img (4 MB) | | |

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0x3400+----------------------------------+ | |

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| environment (128 KB) | | |

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0x3500+----------------------------------+ | |

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| backup environment (128 KB) | | |

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0x3600+----------------------------------+ | |

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| sysfw (1 MB) | | |

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0x3E00+----------------------------------+ +-------------------------+

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Kernel image and DT are expected to be present in the /boot folder of rootfs.

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To boot kernel from eMMC, use the following commands:

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=> setenv mmcdev 0

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=> setenv bootpart 0

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=> boot

Andreas Dannenberg

57a7ee3

2019-08-15 15:55:32 -0500

[diff] [blame]

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Vignesh Raghavendra

5868527

2020-02-04 11:09:57 +0530

[diff] [blame]

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OSPI:

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-----

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ROM supports booting from OSPI from offset 0x0.

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Flashing images to OSPI:

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Below commands can be used to download tiboot3.bin, tispl.bin, u-boot.img,

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and sysfw.itb over tftp and then flash those to OSPI at their respective

addresses.

=> sf probe

=> tftp ${loadaddr} tiboot3.bin

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=> sf update $loadaddr 0x0 $filesize

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=> tftp ${loadaddr} tispl.bin

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=> sf update $loadaddr 0x80000 $filesize

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=> tftp ${loadaddr} u-boot.img

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=> sf update $loadaddr 0x280000 $filesize

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=> tftp ${loadaddr} sysfw.itb

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=> sf update $loadaddr 0x6C0000 $filesize

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Flash layout for OSPI:

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0x0 +----------------------------+

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| ospi.tiboot3(512K) |

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| |

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0x80000 +----------------------------+

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| ospi.tispl(2M) |

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| |

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0x280000 +----------------------------+

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| ospi.u-boot(4M) |

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| |

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0x680000 +----------------------------+

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| ospi.env(128K) |

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| |

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0x6A0000 +----------------------------+

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| ospi.env.backup (128K) |

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| |

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0x6C0000 +----------------------------+

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| ospi.sysfw(1M) |

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| |

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0x7C0000 +----------------------------+

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| padding (256k) |

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0x800000 +----------------------------+

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| ospi.rootfs(UBIFS) |

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| |

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+----------------------------+

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Kernel Image and DT are expected to be present in the /boot folder of UBIFS

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ospi.rootfs just like in SD card case. U-Boot looks for UBI volume named

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"rootfs" for rootfs.

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To boot kernel from OSPI, at the U-Boot prompt:

=> setenv boot ubi

=> boot

Andreas Dannenberg

2019-08-15 15:55:32 -0500

[diff] [blame]

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UART:

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-----

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ROM supports booting from MCU_UART0 via X-Modem protocol. The entire UART-based

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boot process up to U-Boot (proper) prompt goes through different stages and uses

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different UART peripherals as follows:

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WHO | Loading WHAT | HW Module | Protocol

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----------+---------------+-------------+------------

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Boot ROM | tiboot3.bin | MCU_UART0 | X-Modem(*)

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R5 SPL | sysfw.itb | MCU_UART0 | Y-Modem(*)

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R5 SPL | tispl.bin | MAIN_UART0 | Y-Modem

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A53 SPL | u-boot.img | MAIN_UART0 | Y-Modem

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(*) Note that in addition to X/Y-Modem related protocol timeouts the DMSC

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watchdog timeout of 3min (typ.) needs to be observed until System Firmware

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is fully loaded (from sysfw.itb) and started.

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Example bash script sequence for running on a Linux host PC feeding all boot

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artifacts needed to the device:

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MCU_DEV=/dev/ttyUSB1

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MAIN_DEV=/dev/ttyUSB0

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stty -F $MCU_DEV 115200 cs8 -cstopb -parenb

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stty -F $MAIN_DEV 115200 cs8 -cstopb -parenb

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sb --xmodem tiboot3.bin > $MCU_DEV < $MCU_DEV

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sb --ymodem sysfw.itb > $MCU_DEV < $MCU_DEV

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sb --ymodem tispl.bin > $MAIN_DEV < $MAIN_DEV

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sleep 1

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sb --xmodem u-boot.img > $MAIN_DEV < $MAIN_DEV