Hello Kevin, These are the changes that would be necessary in uboot mainline for SPL:
arch/arm/cpu/armv7/exynos/Kconfig - select OF_CONTROL + select SUPPORT_SPL + select OF_CONTROL if !SPL_BUILD configs/odroid-xu3_defconfig +CONFIG_SPL=y include/configs/odroid_xu3.h #undef CONFIG_SPL_TEXT_BASE #define CONFIG_SPL_TEXT_BASE 0x02027000 #undef CONFIG_SEC_FW_SIZE #define CONFIG_SEC_FW_SIZE (15 << 10) /* 15 KB */ FWICT, mainline uboot does not have code to handle secure firmware. For instance when secure firmware is present the address to poke a jump address for the CPU is different (nsram +1c etc). This stems from lowlevel_init.S being moved over to the NS area. This is also missing in uboot mainline or so I think. I hope this helps you out. The ddr init functions seem to be not correct for the 5422 (or so I think). I do not have access to any of the Samsung docs, hence, one solution was to copy over HKs ddr init function, and then the mainline SPL runs. Regards - Suriyan On Tue, Jan 20, 2015 at 1:30 PM, Kevin Hilman <khil...@kernel.org> wrote: > Hello Suriyan, > > Suriyan Ramasami <suriya...@gmail.com> writes: > >> Hello Sjoerd Simons, >> A signed BL2 which allows unsigned BL2 chain load is already >> available for experimentation. Refer this link: >> http://forum.odroid.com/viewtopic.php?f=98&t=6147#p58984 >> The suriyan.bl2-hkxu3.1212.5422.zip blob contains a signed BL2 which >> allows the same. >> The layout of SD card is as follows: >> >> BL1 (1 to 30) 15K >> BL2 (31 to 62) 16K >> indicator block (63 to 64) 1K >> uboot (65 to 2112) 1M >> tzsw (2113 to 2624) 256K >> unsigned BL2 (2625 to 2656) 16K >> >> A non zero in the first byte of the indicator block instructs the >> signed BL2 to load the unsigned BL2 @ offset 2625. > > I'm currently running mainline u-boot, and hoping to test the series > that powers down secondary cores on the odroid-xu3. That series applies > and builds with mainline u-boot (v2015.01-rc3), but for it to work > correctly, IIUC, I'll also need to build an SPL from mainline. > > Can you share your changes to mainline u-boot that enable the building > of SPL? > > I'd like to try that using your BL2 that will load an unsigned BL2. > > Thanks, > > Kevin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
