-Fix plic driver to handle machine vs supervisor mode
-Add switch to scripts/do-qemuriscv to run in supervisor mode (with OpenSBI)
-Use the FDT to detect the number of cpus and size of memory
Very little needed to port except to conditionalize some assembly in the
context switch and exception code. Mostly needed to move build system
stuff around and add a new project.
The virt machine is a generic target, much like the arm virt machine.
Intended to be simple to use and a good target to run large systems like
linux on. At the moment simply support booting and simple uart and timer
support.
-added support for bringing up the clocks and setting up the gpio bits
before starting the uart.
-add a proper target init routine
-add scripts to flash board via openocd
-fixed bug in riscv interrupt save state where it wasn't saving mstatus
on irq entry.
-comment out cycle enabling, not implemented on this core
-Add support for x86 legacy mode, designed for 386+ instead of pentium+
-Fixup uart driver to support com2
-Stub out PCI driver properly
-Fixup IDE driver to detect legacy disks
Currently targets qemu's sifive_e machine, which is a split flash/ram
machine, much like the Sifive HiFive1. Untested as of yet on a real
HiFive1.
Basic support including interrupts and architectural timers in place.
From scratch simple binning heap. Complexity wise in the middle
between miniheap and dlmalloc. Generally much faster than miniheap
with a small amount of memory overhead. Performs similarly to
dlmalloc.
-Bump the kernel forward by 64K
-Look for the FDT that qemu leaves around in the space just before the kernel
-Pick out the 'memory' node, parse the base/length values and patch the main
pmm arena before adding it
Github provides travis continuous integration service. This change makes
it possible to utilize travis with prebuilt toolchains. The build matrix
is defined in .travis.yml file.
-Not optimized yet, but should be pretty complete. Tested against qemu.
-Add switches to qemu script to allow running with a tap interface.
-Enable minip by default on vexpress-a9 platform
Make use of the -j level which was computed in the script instead of
hardcoding to -j4
Change-Id: I99bf175709d1a2c8757fe73a7ddbb6361d431e69
Signed-off-by: John Grossman <johngro@google.com>
Punched out a version of the microblaze on a ZYBO dev board, which required
a few tweaks an additions to run on real hardware.
Refactored the qemu and zybo microblaze target.
