Summary ======= This README is about U-Boot support for Renesas's ARM Cortex-A9 based RMOBILE[1] and Cortex-A9/A53/A57 based R-Car[2] family of SoCs. Renesas's RMOBILE/R-Car SoC family contains an ARM Cortex-A9/A53/A57. Currently the following boards are supported: | SoC | Board | defconfig |===============+========================================+=================== | R8A73A0 | KMC KZM-A9-GT [3] | kzm9g_config | R8A7734 | Atmark-Techno Armadillo-800-EVA [4] | armadillo-800eva_config |===============+========================================+=================== | R8A7790 H2 | Renesas Electronics Lager | lager_defconfig | | Renesas Electronics Stout | stout_defconfig |---------------+----------------------------------------+------------------- | R8A7791 M2-W | Renesas Electronics Koelsch | koelsch_defconfig | | Renesas Electronics Porter | porter_defconfig |---------------+----------------------------------------+------------------- | R8A7792 V2H | Renesas Electronics Blanche | blanche_defconfig |---------------+----------------------------------------+------------------- | R8A7793 M2-N | Renesas Electronics Gose | gose_defconfig |---------------+----------------------------------------+------------------- | R8A7794 E2 | Renesas Electronics Alt | alt_defconfig | | Renesas Electronics Silk | silk_defconfig |===============+========================================+=================== | R8A7795 H3 | Renesas Electronics Salvator-XS ES2.0+ | r8a7795_salvator-x_defconfig | R8A7795 H3 | Renesas Electronics ULCB ES2.0+ | r8a7795_ulcb |---------------+----------------------------------------+------------------- | R8A7796 M3-W | Renesas Electronics Salvator-X | r8a7796_salvator-x_defconfig | R8A7796 M3-W | Renesas Electronics ULCB | r8a7796_ulcb |---------------+----------------------------------------+------------------- | R8A77965 M3-N | Renesas Electronics Salvator-XS | r8a77965_salvator-x_defconfig | R8A77965 M3-N | Renesas Electronics ULCB | r8a77965_ulcb |---------------+----------------------------------------+------------------- | R8A77970 V3M | Renesas Electronics Eagle | r8a77970_eagle_defconfig | R8A77970 V3M | Renesas Electronics V3MSK | r8a77970_v3msk_defconfig |---------------+----------------------------------------+------------------- | R8A77995 D3 | Renesas Electronics Draak | r8a77995_draak_defconfig '===============+========================================+=================== Toolchain ========= Either ARMv7 toolchain for 32bit Cortex-A9 systems or ARMv8 (aarch64) toolchain for 64bit Cortex-A53/A57 systems. Currently we compile the 32bit systems with -march=armv5 to allow more compilers to work. (For U-Boot code this has no performance impact.) Currently, ELDK[5], Linaro[6], CodeSourcery[7] and Emdebian[8] supports ARMv7. Modern distributions also contain ARMv7 and ARMv8 crosstoolchains in their package feeds. Build ===== Locate defconfig in the table above. Then apply standard build procedure: make _defconfig make Note: Armadillo-800-EVA's U-Boot supports booting from SDcard only. Please see "B.2 Appendix B Boot Specifications" in hardware manual. Links ===== [1] Renesas RMOBILE: http://am.renesas.com/products/soc/assp/mobile/r_mobile/index.jsp [2] Renesas R-Car: http://am.renesas.com/products/soc/assp/automotive/index.jsp [3] KZM-A9-GT http://www.kmckk.co.jp/kzma9-gt/index.html [4] Armadillo-800-EVA http://armadillo.atmark-techno.com/armadillo-800-EVA [5] ELDK http://www.denx.de/wiki/view/ELDK-5/WebHome#Section_1.6. [6] Linaro http://www.linaro.org/downloads/ [7] CodeSourcey http://www.mentor.com/embedded-software/codesourcery [8] Emdebian http://www.emdebian.org/crosstools.html