diff options
Diffstat (limited to 'src/soc/intel/skylake/finalize.c')
| -rw-r--r-- | src/soc/intel/skylake/finalize.c | 46 |
1 files changed, 3 insertions, 43 deletions
diff --git a/src/soc/intel/skylake/finalize.c b/src/soc/intel/skylake/finalize.c index e640ceb40a..12dbab4814 100644 --- a/src/soc/intel/skylake/finalize.c +++ b/src/soc/intel/skylake/finalize.c @@ -40,40 +40,9 @@ #define PCR_PSFX_T0_SHDW_PCIEN 0x1C #define PCR_PSFX_T0_SHDW_PCIEN_FUNDIS (1 << 8) -static void pch_configure_endpoints(struct device *dev, int epmask_id, - uint32_t mask) +static void disable_sideband_access(void) { - uint32_t reg32; - - reg32 = pci_read_config32(dev, PCH_P2SB_EPMASK(epmask_id)); - pci_write_config32(dev, PCH_P2SB_EPMASK(epmask_id), reg32 | mask); -} - -static void disable_sideband_access(struct device *dev) -{ - u8 reg8; - uint32_t mask; - - /* - * Set p2sb PCI offset EPMASK5 C4h [29, 28, 27, 26] to disable Sideband - * access for PCI Root Bridge. - * Set p2sb PCI offset EPMASK5 C4h [17, 16,10, 1] to disable Sideband - * access for MIPI controller. - */ - mask = (1 << 29) | (1 << 28) | (1 << 27) | (1 << 26) | (1 << 17) | - (1 << 16) | (1 << 10) | (1 << 1); - pch_configure_endpoints(dev, 5, mask); - - /* - * Set p2sb PCI offset EPMASK7 CCh ports E6, E5 (bits 6, 5) - * to disable Sideband access for XHCI controller. - */ - mask = (1 << 6) | (1 << 5); - pch_configure_endpoints(dev, 7, mask); - - /* Set the "Endpoint Mask Lock!", P2SB PCI offset E2h bit[1] to 1. */ - reg8 = pci_read_config8(dev, PCH_P2SB_E0 + 2); - pci_write_config8(dev, PCH_P2SB_E0 + 2, reg8 | (1 << 1)); + p2sb_disable_sideband_access(); /* hide p2sb device */ p2sb_hide(); @@ -81,15 +50,6 @@ static void disable_sideband_access(struct device *dev) static void pch_disable_heci(void) { - struct device *dev = PCH_DEV_P2SB; - - /* - * if p2sb device 1f.1 is not present or hidden in devicetree - * p2sb device becomes NULL - */ - if (!dev) - return; - /* unhide p2sb device */ p2sb_unhide(); @@ -97,7 +57,7 @@ static void pch_disable_heci(void) pcr_or32(PID_PSF1, PSF_BASE_ADDRESS + PCR_PSFX_T0_SHDW_PCIEN, PCR_PSFX_T0_SHDW_PCIEN_FUNDIS); - disable_sideband_access(dev); + disable_sideband_access(); } static void pch_finalize_script(struct device *dev) |