From 6fcaaef6140aca68603f57d1c684c3381d472ac4 Mon Sep 17 00:00:00 2001 From: Marc Jones Date: Thu, 20 Apr 2017 16:48:42 -0600 Subject: amd/pi/hudson: Add TPM decode to SPI function Add a function to send the TPM decode to the SPI interface. Enables use of SPI TPMs on Hudson mainboards. Change-Id: I0e85ed92163e38eca6a55456708ab322d6a90d4c Signed-off-by: Marc Jones Reviewed-on: https://review.coreboot.org/19402 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/southbridge/amd/pi/hudson/early_setup.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'src/southbridge/amd/pi/hudson/early_setup.c') diff --git a/src/southbridge/amd/pi/hudson/early_setup.c b/src/southbridge/amd/pi/hudson/early_setup.c index 5f3f0ee858..b5e753d222 100644 --- a/src/southbridge/amd/pi/hudson/early_setup.c +++ b/src/southbridge/amd/pi/hudson/early_setup.c @@ -327,4 +327,13 @@ void hudson_read_mode(u32 mode) & ~SPI_READ_MODE_MASK) | mode); } +void hudson_tpm_decode_spi(void) +{ + device_t dev = PCI_DEV(0, 0x14, 3); /* LPC device */ + + u32 spibase = pci_read_config32(dev, SPIROM_BASE_ADDRESS_REGISTER); + pci_write_config32(dev, SPIROM_BASE_ADDRESS_REGISTER, spibase + | ROUTE_TPM_2_SPI); +} + #endif -- cgit v1.2.3