Hello,
Attached patches fixes a video BIOS freeze with 128MB UMA. It looks like the
internal address 0xc0000000 - 0xcfffffff was hardcoded. The change just takes
the fb size to account resulting in - 0xc7ffffff for 128MB UMA.
Signed-off-by: Rudolf Marek <[email protected]>
Yes it took some hours to find this out...
Thanks,
Rudolf
Index: src/southbridge/amd/rs780/rs780_gfx.c
===================================================================
--- src/southbridge/amd/rs780/rs780_gfx.c (revision 5695)
+++ src/southbridge/amd/rs780/rs780_gfx.c (working copy)
@@ -660,8 +660,10 @@
/* Set UMA in the 780 side. */
/* UMA start address, size. */
- /* The same value in spite of system memory size. */
- nbmc_write_index(nb_dev, 0x10, 0xcfffc000);
+ /* The UMA starts at 0xC0000000 of internal RS780 address space
+ [31:16] addr of last byte | [31:16] addr of first byte
+ */
+ nbmc_write_index(nb_dev, 0x10, ((uma_memory_size - 1 + 0xC0000000) & (~0xffff)) | 0xc000);
nbmc_write_index(nb_dev, 0x11, uma_memory_base);
nbmc_write_index(nb_dev, 0x12, 0);
nbmc_write_index(nb_dev, 0xf0, 256);
--
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