u-boot/board/ti/j721e/Kconfig
Andreas Dannenberg 643eb6ea07 board: ti: j721e: Use EEPROM-based board detection
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>
2020-01-20 10:10:28 +05:30

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# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
# Lokesh Vutla <lokeshvutla@ti.com>
choice
prompt "K3 J721E based boards"
optional
config TARGET_J721E_A72_EVM
bool "TI K3 based J721E EVM running on A72"
select ARM64
select SOC_K3_J721E
select BOARD_LATE_INIT
imply TI_I2C_BOARD_DETECT
select SYS_DISABLE_DCACHE_OPS
config TARGET_J721E_R5_EVM
bool "TI K3 based J721E EVM running on R5"
select CPU_V7R
select SYS_THUMB_BUILD
select SOC_K3_J721E
select K3_LOAD_SYSFW
select RAM
select SPL_RAM
select K3_J721E_DDRSS
imply SYS_K3_SPL_ATF
imply TI_I2C_BOARD_DETECT
endchoice
if TARGET_J721E_A72_EVM
config SYS_BOARD
default "j721e"
config SYS_VENDOR
default "ti"
config SYS_CONFIG_NAME
default "j721e_evm"
source "board/ti/common/Kconfig"
endif
if TARGET_J721E_R5_EVM
config SYS_BOARD
default "j721e"
config SYS_VENDOR
default "ti"
config SYS_CONFIG_NAME
default "j721e_evm"
config SPL_LDSCRIPT
default "arch/arm/mach-omap2/u-boot-spl.lds"
source "board/ti/common/Kconfig"
endif