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authorAngel Pons <th3fanbus@gmail.com>2020-06-07 22:09:01 +0200
committerPatrick Georgi <pgeorgi@google.com>2020-06-10 18:48:32 +0000
commitc803f65206188ca74526054c54bce4f405a55850 (patch)
tree9ce8dd5df1ac5e56912bb0f72c19274bfcfd0acb /src/southbridge/intel/bd82x6x/me.c
parent7333ea91eae33a874cf5187bc04906f6d2f1e3bf (diff)
sb/intel/bd82x6x: Use PCI bitwise ops
Some cases could not be factored out while keeping reproducibility. Also mark some potential bugs with a FIXME comment, since fixing them while also keeping the binary unchanged is pretty much impossible. Tested with BUILD_TIMELESS=1, Asus P8Z77-V LX2 does not change. Change-Id: Iafe62d952a146bf53a28a1a83b87a3ae31f46720 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42152 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/southbridge/intel/bd82x6x/me.c')
-rw-r--r--src/southbridge/intel/bd82x6x/me.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/src/southbridge/intel/bd82x6x/me.c b/src/southbridge/intel/bd82x6x/me.c
index ebb9db93e5..40b0cc2bd8 100644
--- a/src/southbridge/intel/bd82x6x/me.c
+++ b/src/southbridge/intel/bd82x6x/me.c
@@ -438,7 +438,6 @@ static void intel_me7_finalize_smm(void)
{
struct me_hfs hfs;
u32 reg32;
- u16 reg16;
mei_base_address = (u32 *)
(pci_read_config32(PCH_ME_DEV, PCI_BASE_ADDRESS_0) & ~0xf);
@@ -461,10 +460,8 @@ static void intel_me7_finalize_smm(void)
mkhi_end_of_post();
/* Make sure IO is disabled */
- reg16 = pci_read_config16(PCH_ME_DEV, PCI_COMMAND);
- reg16 &= ~(PCI_COMMAND_MASTER |
- PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
- pci_write_config16(PCH_ME_DEV, PCI_COMMAND, reg16);
+ pci_and_config16(PCH_ME_DEV, PCI_COMMAND,
+ ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
/* Hide the PCI device */
RCBA32_OR(FD2, PCH_DISABLE_MEI1);