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AMD RS780 uma graphics. Tested with frame buffer sizes 64m through 1GB
by running dxdiag and Windows media player at 1600x1200 true color.
Additional changes needed to boot Win7 on Mahogany_fam10 will follow.
-- Enable and program the debug bar as required by the ATI graphics driver.
First, make the debug bar writable and allow resource allocation code
to program it. Once programmed, enable its operation.
-- Disable the family 10h processor mmconf while the RS780 mmconf is in use.
-- Make strap programming more closely follow the reference BIOS.
-- Disable PCIe bar 3 after using it.
-- UMA size is no longer hardcoded.
-- Disable write combining for all steppings to eliminate stability problem.
-- Correct task file data.
-- Improve the accuracy of the Atom table that passes information to the driver.
Signed-off-by: Scott Duplichan <scott@notabs.org>
Acked-by: Rudolf Marek <r.marek@assembler.cz>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6120 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5272 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5266 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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* PCIe initialization.
* Internal Graphics initialization.
* HT Link initialization. It works in HT1 or HT3 mode.
Note:
1. I tried to add the description of every step to the code. For example,
if it is made based on rpr, section 2.4.5, I will pasted the words
from 2.4.5 to the c code. But the document I worked with might be
different with the most updated one. A new section has been added and
the 2.4.5 might be changed to 2.5.5. That migh lead to confusing. I
correct every comment if I met one. But I have to confess that I am so
reluctant to find out everyone. I believe it will be correct in the long
run.
2. The interanl graphics part is done by Libo Feng <libo.feng@amd.com>.
3. There is a conflict between RPR and our CIM code. Please see the comment in
switching_gppsb_configurations in rs780_pcie.c.
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Acked-by: Marc Jones <marcj303@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5219 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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