imx-atf.git - Reference implementation of ARM secure world software for i.MX

Age	Commit message (Collapse)	Author
2018-01-19	coreboot: Add support for CBMEM console	Julius Werner
	coreboot supports an in-memory console to store firmware logs even when no serial console is available. It is widely supported by coreboot-compatible bootloaders (including SeaBIOS and GRUB) and can be read by the Linux kernel. This patch allows BL31 to add its own log messages to this console. The driver will be registered automatically if coreboot support is compiled in and detects the presence of a console buffer in the coreboot tables. Change-Id: I31254dfa0c2fdeb7454634134b5707b4b4154907 Signed-off-by: Julius Werner <jwerner@chromium.org>
2018-01-19	Add platform-independent coreboot support library	Julius Werner
	This patch adds the foundation for a platform-independent coreboot support library that can be shared by all platforms that boot BL31 from coreboot (acting as BL2). It adds code to parse the "coreboot table", a data structure that coreboot uses to communicate different kinds of information to later-stage firmware and certain OS drivers. As a first small use case for this information, allow platforms to access the serial console configuration used by coreboot, removing the need to hardcode base address and divisors and allowing Trusted Firmware to benefit from coreboot's user configuration (e.g. which UART to pick and which baud rate to use). Change-Id: I2bfb39cd2609ce6640b844ab68df6c9ae3f28e9e Signed-off-by: Julius Werner <jwerner@chromium.org>