From 3f2546b2ef55b661fd8dd69682b38992225e86f6 Mon Sep 17 00:00:00 2001 From: fishsoupisgood Date: Mon, 29 Apr 2019 01:17:54 +0100 Subject: Initial import of qemu-2.4.1 --- roms/u-boot/doc/README.mpc74xx | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 roms/u-boot/doc/README.mpc74xx (limited to 'roms/u-boot/doc/README.mpc74xx') diff --git a/roms/u-boot/doc/README.mpc74xx b/roms/u-boot/doc/README.mpc74xx new file mode 100644 index 00000000..f81f1c2e --- /dev/null +++ b/roms/u-boot/doc/README.mpc74xx @@ -0,0 +1,22 @@ +This file contains status information for the port of U-Boot to the +Motorola mpc74xx series of CPUs. + +Author: Josh Huber + Mission Critical Linux, Inc. + +Currently the support for these CPUs is pretty minimal, but enough to +get things going. (much like the support for the Galileo Eval Board) + +There is a framework in place to enable the L2 cache, and to program +the BATs. Currently, there are still problems with the code which +sets up the L2 cache, so it's not enabled. (IMHO, it shouldn't be +anyway). Additionally, there is support for enabling the MMU, which +we also don't do. The BATs are programmed just for the benefit of +jumping into Linux in a sane configuration. + +Most of the code was based on other cpus supported by U-Boot. + +If you find any errors in the CPU setup code, please send us a note. + +Thanks, +Josh -- cgit v1.2.3