J742S2 SOC is derivative of J784S4, most of build infra of j784s4 is used to build u-boot for J742S2 EVM board.
Add guide users on how to build for that board. Signed-off-by: Udit Kumar <[email protected]> --- Test logs https://gist.github.com/uditkumarti/28d9d698f7f74cbb9da76047ce1ce60f Changelog: Chnages in v3: - Moved defconfig into AM69 block - Moved GP information note just after GP Images Changes in v2: - Removed extra = Patch link v2: https://lore.kernel.org/all/[email protected]/ v1: https://lore.kernel.org/all/[email protected]/ doc/board/ti/j784s4_evm.rst | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/doc/board/ti/j784s4_evm.rst b/doc/board/ti/j784s4_evm.rst index 22442874110..d858dc7cdbb 100644 --- a/doc/board/ti/j784s4_evm.rst +++ b/doc/board/ti/j784s4_evm.rst @@ -1,8 +1,8 @@ .. SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause .. sectionauthor:: Apurva Nandan <[email protected]> -J784S4 and AM69 Platforms -========================= +J742S2, J784S4 and AM69 Platforms +================================= Introduction ------------ @@ -37,6 +37,11 @@ Platform information: * https://www.ti.com/tool/J784S4XEVM * https://www.ti.com/tool/SK-AM69 +J742S2 is derivative of J784S24 SOC, More info can be found in + +* TRM : https://www.ti.com/lit/ug/spruje3/spruje3.pdf +* Platform Information : https://www.ti.com/tool/J742S2XH01EVM + Boot Flow --------- Below is the pictorial representation of boot flow: @@ -99,6 +104,13 @@ Set the variables corresponding to this platform: export UBOOT_CFG_CORTEXR=am69_sk_r5_defconfig export UBOOT_CFG_CORTEXA=am69_sk_a72_defconfig + For J742S2-EVM, use the following U_BOOT_CFG instead: + + .. prompt:: bash + + export UBOOT_CFG_CORTEXR=j742s2_evm_r5_defconfig + export UBOOT_CFG_CORTEXA=j742s2_evm_a72_defconfig + .. j784s4_evm_rst_include_start_build_steps 1. Trusted Firmware-A @@ -143,14 +155,21 @@ variant (GP, HS-FS, HS-SE) requires a different source for these files. * tiboot3-j784s4-gp-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>` * tispl.bin_unsigned, u-boot.img_unsigned from :ref:`step 3.2 <j784s4_evm_rst_u_boot_a72>` + .. note:: + + For J742S2, GP variant is not available. + + - HS-FS * tiboot3-j784s4-hs-fs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>` + * tiboot3-j742s2-hs-fs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>` * tispl.bin, u-boot.img from :ref:`step 3.2 <j784s4_evm_rst_u_boot_a72>` - HS-SE * tiboot3-j784s4-hs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>` + * tiboot3-j742s2-hs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>` * tispl.bin, u-boot.img from :ref:`step 3.2 <j784s4_evm_rst_u_boot_a72>` Image formats -- 2.34.1
