diff options
| -rw-r--r-- | src/include/device/pciexp.h | 5 | ||||
| -rw-r--r-- | src/soc/intel/broadwell/pcie.c | 4 | ||||
| -rw-r--r-- | src/soc/intel/common/block/pcie/pcie.c | 8 |
3 files changed, 10 insertions, 7 deletions
diff --git a/src/include/device/pciexp.h b/src/include/device/pciexp.h index 0f1420a013..3a9825d871 100644 --- a/src/include/device/pciexp.h +++ b/src/include/device/pciexp.h @@ -14,6 +14,11 @@ enum aspm_type { #define ASPM_LTR_L12_THRESHOLD_SCALE_OFFSET 29 #define ASPM_LTR_L12_THRESHOLD_SCALE_MASK (0x7 << ASPM_LTR_L12_THRESHOLD_SCALE_OFFSET) +/* Latency tolerance reporting, max non-snoop latency value 3.14ms */ +#define PCIE_LTR_MAX_NO_SNOOP_LATENCY_3146US 0x1003 +/* Latency tolerance reporting, max snoop latency value 3.14ms */ +#define PCIE_LTR_MAX_SNOOP_LATENCY_3146US 0x1003 + void pciexp_scan_bus(struct bus *bus, unsigned int min_devfn, unsigned int max_devfn); diff --git a/src/soc/intel/broadwell/pcie.c b/src/soc/intel/broadwell/pcie.c index 472e8da465..dff4f8139f 100644 --- a/src/soc/intel/broadwell/pcie.c +++ b/src/soc/intel/broadwell/pcie.c @@ -652,7 +652,9 @@ static void pch_pcie_enable(struct device *dev) static void pcie_set_L1_ss_max_latency(struct device *dev, unsigned int off) { /* Set max snoop and non-snoop latency for Broadwell */ - pci_write_config32(dev, off, 0x10031003); + pci_write_config32(dev, off, + PCIE_LTR_MAX_NO_SNOOP_LATENCY_3146US << 16 | + PCIE_LTR_MAX_SNOOP_LATENCY_3146US); } static struct pci_operations pcie_ops = { diff --git a/src/soc/intel/common/block/pcie/pcie.c b/src/soc/intel/common/block/pcie/pcie.c index d74b09826c..e8b1050f4a 100644 --- a/src/soc/intel/common/block/pcie/pcie.c +++ b/src/soc/intel/common/block/pcie/pcie.c @@ -21,10 +21,6 @@ #include <device/pci_ops.h> #define CACHE_LINE_SIZE 0x10 -/* Latency tolerance reporting, max non-snoop latency value 3.14ms */ -#define PCIE_LTR_MAX_NO_SNOOP_LATENCY_VALUE 0x1003 -/* Latency tolerance reporting, max snoop latency value 3.14ms */ -#define PCIE_LTR_MAX_SNOOP_LATENCY_VALUE 0x1003 static void pch_pcie_init(struct device *dev) { @@ -66,8 +62,8 @@ static void pcie_set_L1_ss_max_latency(struct device *dev, unsigned int offset) { /* Set max snoop and non-snoop latency for the SOC */ pci_write_config32(dev, offset, - PCIE_LTR_MAX_NO_SNOOP_LATENCY_VALUE << 16 | - PCIE_LTR_MAX_SNOOP_LATENCY_VALUE); + PCIE_LTR_MAX_NO_SNOOP_LATENCY_3146US << 16 | + PCIE_LTR_MAX_SNOOP_LATENCY_3146US); } static struct pci_operations pcie_ops = { |