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https://github.com/brain-hackers/u-boot-brain
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643eb6ea07
The TI J721E EVM system on module (SOM), the common processor board, and
the associated daughtercards have on-board I2C-based EEPROMs containing
board config data. Use the board detection infrastructure to do the
following:
1) Parse the J721E SOM EEPROM and populate items like board name, board
HW and SW revision as well as board serial number into the TI common
EEPROM data structure residing in SRAM scratch space
2) Check for presence of daughter card(s) by probing associated I2C
addresses used for on-board EEPROMs containing daughter card-specific
data. If such a card is found, parse the EEPROM data such as for
additional Ethernet MAC addresses and populate those into U-Boot
accordingly
3) Dynamically apply daughter card DTB overlays to the U-Boot (proper)
DTB during SPL execution
4) Dynamically create an U-Boot ENV variable called name_overlays
during U-Boot execution containing a list of daugherboard-specific
DTB overlays based on daughercards found to be used during Kernel
boot.
This patch adds support for the J721E system on module boards containing
the actual SoC ("J721EX-PM2-SOM", accessed via CONFIG_EEPROM_CHIP_ADDRESS),
the common processor board ("J7X-BASE-CPB"), the Quad-Port Ethernet
Expansion Board ("J7X-VSC8514-ETH"), the infotainment board
("J7X-INFOTAN-EXP") as well as for the gateway/Ethernet switch/industrial
expansion board ("J7X-GESI-EXP").
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
64 lines
1.1 KiB
Plaintext
64 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0+
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#
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# Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
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# Lokesh Vutla <lokeshvutla@ti.com>
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choice
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prompt "K3 J721E based boards"
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optional
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config TARGET_J721E_A72_EVM
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bool "TI K3 based J721E EVM running on A72"
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select ARM64
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select SOC_K3_J721E
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select BOARD_LATE_INIT
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imply TI_I2C_BOARD_DETECT
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select SYS_DISABLE_DCACHE_OPS
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config TARGET_J721E_R5_EVM
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bool "TI K3 based J721E EVM running on R5"
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select CPU_V7R
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select SYS_THUMB_BUILD
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select SOC_K3_J721E
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select K3_LOAD_SYSFW
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select RAM
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select SPL_RAM
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select K3_J721E_DDRSS
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imply SYS_K3_SPL_ATF
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imply TI_I2C_BOARD_DETECT
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endchoice
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if TARGET_J721E_A72_EVM
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config SYS_BOARD
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default "j721e"
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config SYS_VENDOR
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default "ti"
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config SYS_CONFIG_NAME
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default "j721e_evm"
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source "board/ti/common/Kconfig"
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endif
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if TARGET_J721E_R5_EVM
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config SYS_BOARD
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default "j721e"
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config SYS_VENDOR
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default "ti"
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config SYS_CONFIG_NAME
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default "j721e_evm"
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config SPL_LDSCRIPT
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default "arch/arm/mach-omap2/u-boot-spl.lds"
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source "board/ti/common/Kconfig"
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endif
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