[coreboot-gerrit] New patch to review for coreboot: 408e261 cpu/amd/pi: Enable early decode of the UART on LPC

[Dave Frodin (dave.frodin@se-eng.com)]

Dave Frodin (dave.frodin at se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8661

-gerrit

commit 408e261d555e25c170986bac47d961513a6d9bb6
Author: Dave Frodin <dave.frodin at se-eng.com>
Date:   Thu Mar 12 16:14:01 2015 -0600

    cpu/amd/pi: Enable early decode of the UART on LPC
    
    The decode of UART address down to the LPC bus needs
    to occur early to allow romstage console messages to
    be seen.
    
    Change-Id: I6636946af4ad5320a5a46c2920b4f06345b5f806
    Signed-off-by: Dave Frodin <dave.frodin at se-eng.com>
---
 src/cpu/amd/pi/00630F01/fixme.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/cpu/amd/pi/00630F01/fixme.c b/src/cpu/amd/pi/00630F01/fixme.c
index f032f02..ccd3b8e 100644
--- a/src/cpu/amd/pi/00630F01/fixme.c
+++ b/src/cpu/amd/pi/00630F01/fixme.c
@@ -67,6 +67,8 @@ void amd_initcpuio(void)
 void amd_initmmio(void)
 {
 	UINT64                        MsrReg;
+	UINT32                        PciData;
+	PCI_ADDR                      PciAddress;
 	AMD_CONFIG_PARAMS             StdHeader;
 
 	/*
@@ -83,6 +85,11 @@ void amd_initmmio(void)
 	MsrReg = MsrReg | 0x0000400000000000;
 	LibAmdMsrWrite (0xC001001F, &MsrReg, &StdHeader);
 
+	/* For serial port */
+	PciData = 0xFF03FFD5;
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x14, 0x3, 0x44);
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+
 	/* Set ROM cache onto WP to decrease post time */
 	MsrReg = (0x0100000000ull - CACHE_ROM_SIZE) | 5ull;
 	LibAmdMsrWrite (0x20C, &MsrReg, &StdHeader);