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soc/amd/common/block/lpc: Set LPC_IO_PORT_DECODE_ENABLE to 0 when disabling decodes 

This change sets LPC_IO_PORT_DECODE_ENABLE to 0 as part of
lpc_disable_decodes() to ensure that the I/O port decodes are also disabled.

Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I1474f561997f2ee1231bd0fcaab4d4d4e98ff923
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Furquan Shaikh 2020-05-09 14:46:09 -07:00
parent 13b8158672
commit ca892fe44b
1 changed files with 1 additions and 0 deletions
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1
src/soc/amd/common/block/lpc/lpc_util.c
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@ -182,6 +182,7 @@ void lpc_disable_decodes(void)
reg = pci_read_config32(_LPCB_DEV, LPC_IO_OR_MEM_DECODE_ENABLE);
reg &= LPC_SYNC_TIMEOUT_COUNT_MASK | LPC_SYNC_TIMEOUT_COUNT_ENABLE;
pci_write_config32(_LPCB_DEV, LPC_IO_OR_MEM_DECODE_ENABLE, reg);
pci_write_config32(_LPCB_DEV, LPC_IO_PORT_DECODE_ENABLE, 0);
/* D14F3x48 enables ranges configured in additional registers */
pci_write_config32(_LPCB_DEV, LPC_MEM_PORT1, 0);