Change in coreboot[master]: sb/amd/sb700/bootblock.c: Configure TPM decoding

[Michał Żygowski (Code Review)]

Michał Żygowski has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/62109 )

Change subject: sb/amd/sb700/bootblock.c: Configure TPM decoding
......................................................................

sb/amd/sb700/bootblock.c: Configure TPM decoding

Signed-off-by: Michał Żygowski 
Change-Id: I5979cb09f9ebdfc161090775a638a024daaba4c0
---
M src/southbridge/amd/sb700/bootblock.c
1 file changed, 14 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/62109/1

diff --git a/src/southbridge/amd/sb700/bootblock.c b/src/southbridge/amd/sb700/bootblock.c
index be64c23..9d74e13 100644
--- a/src/southbridge/amd/sb700/bootblock.c
+++ b/src/southbridge/amd/sb700/bootblock.c
@@ -184,6 +184,18 @@
    pci_write_config8(dev, 0x4a, byte);
 }

+static void sb700_enable_tpm_decoding(void)
+{
+	u8 reg8;
+	pci_devfn_t dev;
+
+	dev = PCI_DEV(0, 0x14, 3);
+
+	reg8 = pci_read_config8(dev, 0x7c);
+	reg8 |= 1;	/* Tpm12_en */
+	pci_write_config8(dev, 0x7c, reg8);
+}
+
 void bootblock_early_southbridge_init(void)
 {
    sb700_enable_rom();
@@ -194,4 +206,6 @@
    	sb7xx_51xx_lpc_port80();
    if (CONFIG(POST_DEVICE_PCI_PCIE))
    	sb7xx_51xx_pci_port80();
+
+	sb700_enable_tpm_decoding();
 }