diff options
Diffstat (limited to 'src/soc/intel/broadwell/pcie.c')
| -rw-r--r-- | src/soc/intel/broadwell/pcie.c | 55 |
1 files changed, 29 insertions, 26 deletions
diff --git a/src/soc/intel/broadwell/pcie.c b/src/soc/intel/broadwell/pcie.c index 3fb60e82b9..aff66a3e09 100644 --- a/src/soc/intel/broadwell/pcie.c +++ b/src/soc/intel/broadwell/pcie.c @@ -266,7 +266,8 @@ static void pcie_enable_clock_gating(void) * In addition to D28Fx PCICFG 420h[30:29] = 11b, * set 420h[17] = 0b and 420[0] = 1b for L1 SubState. */ - pci_update_config32(dev, 0x420, ~0x20000, (3 << 29) | 1); + pci_update_config32(dev, 0x420, ~0x20000, + (3 << 29) | 1); /* Configure shared resource clock gating. */ if (rp == 1 || rp == 5 || rp == 6) @@ -385,29 +386,29 @@ static void root_port_check_disable(device_t dev) /* Check Root Port Configuration. */ switch (rp) { - case 2: - /* Root Port 2 is disabled for all lane configurations - * but config 00b (4x1 links). */ - if ((rpc.strpfusecfg1 >> 14) & 0x3) { - root_port_mark_disable(dev); - return; - } - break; - case 3: - /* Root Port 3 is disabled in config 11b (1x4 links). */ - if (((rpc.strpfusecfg1 >> 14) & 0x3) == 0x3) { - root_port_mark_disable(dev); - return; - } - break; - case 4: - /* Root Port 4 is disabled in configs 11b (1x4 links) - * and 10b (2x2 links). */ - if ((rpc.strpfusecfg1 >> 14) & 0x2) { - root_port_mark_disable(dev); - return; - } - break; + case 2: + /* Root Port 2 is disabled for all lane configurations + * but config 00b (4x1 links). */ + if ((rpc.strpfusecfg1 >> 14) & 0x3) { + root_port_mark_disable(dev); + return; + } + break; + case 3: + /* Root Port 3 is disabled in config 11b (1x4 links). */ + if (((rpc.strpfusecfg1 >> 14) & 0x3) == 0x3) { + root_port_mark_disable(dev); + return; + } + break; + case 4: + /* Root Port 4 is disabled in configs 11b (1x4 links) + * and 10b (2x2 links). */ + if ((rpc.strpfusecfg1 >> 14) & 0x2) { + root_port_mark_disable(dev); + return; + } + break; } /* Check Pin Ownership. */ @@ -487,7 +488,8 @@ static void pch_pcie_early(struct device *dev) if (do_aspm) { /* Set ASPM bits in MPC2 register. */ - pci_update_config32(dev, 0xd4, ~(0x3 << 2), (1 << 4) | (0x2 << 2)); + pci_update_config32(dev, 0xd4, ~(0x3 << 2), + (1 << 4) | (0x2 << 2)); /* Set unique clock exit latency in MPC register. */ pci_update_config32(dev, 0xd8, ~(0x7 << 18), (0x7 << 18)); @@ -552,7 +554,8 @@ static void pch_pcie_early(struct device *dev) pci_update_config8(dev, 0xf5, 0x0f, 0); /* Set AER Extended Cap ID to 01h and Next Cap Pointer to 200h. */ - pci_update_config32(dev, 0x100, ~(1 << 29) & ~0xfffff, (1 << 29) | 0x10001); + pci_update_config32(dev, 0x100, ~(1 << 29) & ~0xfffff, + (1 << 29) | 0x10001); /* Set L1 Sub-State Cap ID to 1Eh and Next Cap Pointer to None. */ pci_update_config32(dev, 0x200, ~0xffff, 0x001e); |