Timothy Pearson (tpearson@raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8272
-gerrit
commit 2d5320401109767dfa9e3afc436711c710d69ef4 Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Sat Jan 24 13:46:46 2015 -0600
nvidia/ck804: Add ability to bypass register 0x78 initialization
On the ASUS KFSN4-DRE initializing CK804 0x78 causes an almost immediate soft reset. Leaving the register at its power-on default value appears to have no ill effect on that same board.
Change-Id: I833603adea580cb3f4441e35044d1e17d2d67852 Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- src/southbridge/nvidia/ck804/early_setup_car.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/src/southbridge/nvidia/ck804/early_setup_car.c b/src/southbridge/nvidia/ck804/early_setup_car.c index 09cbc58..8c7a308 100644 --- a/src/southbridge/nvidia/ck804/early_setup_car.c +++ b/src/southbridge/nvidia/ck804/early_setup_car.c @@ -154,7 +154,9 @@ static void ck804_early_setup(unsigned ck804_num, unsigned *busn, CK804_MB_SETUP #endif
+#ifndef CK804_SKIP_PCI_REG_78_INIT RES_PCI_IO, PCI_ADDR(0, 1, 0, 0x78), 0xc0ffffff, 0x19000000, +#endif RES_PCI_IO, PCI_ADDR(0, 1, 0, 0xe0), 0xfffffeff, 0x00000100,
RES_PORT_IO_32, ANACTRL_IO_BASE + 0x20, 0xe00fffff, 0x11000000,