summaryrefslogtreecommitdiff
path: root/src/soc/ti/am335x
AgeCommit message (Collapse)Author
2020-11-22soc/ti/am335x: Fix timer implementationSam Lewis
Implements the monotonic timer using the am335x dmtimer peripheral. Change-Id: I4736b6d3b6e26370be9e8f369fc02285ad519223 Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44383 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-22soc/ti/am335x: Enable MMU in bootblockSam Lewis
Enables the MMU primarily to allow the unaligned word reads that the FMAP code requires. Without enabling this, the chip gets data access exceptions. Enabling the MMU also gives some advantages in allowing the icache and dcache to be enabled, so is probably worth doing regardless. Change-Id: Ic571570cc44b0696ea61cc76e3bce7167a3256cf Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44382 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2020-09-12include/console/uart: make index parameter unsignedFelix Held
The UART index is never negative, so make it unsigned and drop the checks for the index to be non-negative. Change-Id: I64bd60bd2a3b82552cb3ac6524792b9ac6c09a94 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45294 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-09-09soc/ti/am335x: Fix MLO buildSam Lewis
Allows the AM335X to boot from the coreboot generated MLO by: - Fixing the load address in the MLO header to be the start of SRAM - Fixing the way that the bootblock size is calculated (which is embedded into the MLO so that the MLO knows how much to load into SRAM). The previous method relied on parsing cbfstool output - the output has changed format since this was originally written so this no longer works. Directly using the filesize of the built binary is probably a more stable way of doing this. As part of this, the start addresses of SRAM and DRAM were fixed to be consistent with the AM335x Technical Reference Manual (spruh73, rev Q). TEST: Booted Beaglebone Black from MLO placed at offset 0x00 on an SD card Change-Id: I514d7cda65ddcbf27e78286dc6857c9e81ce6f9e Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44381 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-19cpu/ti/am335x: Move from cpu to soc in treeSam Lewis
The AM335X is a SoC, so should be in the soc tree. This moves all the existing am335x code to soc/ and updates any references. It also adds a soc.c file as required for the ramstage. Change-Id: Ic1ccb0e9b9c24a8b211b723b5f4cc26cdd0eaaab Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44378 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>