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| author | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2017-02-07 16:19:18 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2017-02-10 11:05:57 +0100 |
| commit | 1db4135e32e03c0131301ed46d906a2bf8f08c9b (patch) | |
| tree | f1da4a38a5ee6d7337843d9528f7e21fa61a006f /target/linux/cns3xxx/patches-4.9/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch | |
| parent | b96566aad4340c5b790bdaea0514885857ea84bf (diff) | |
| download | upstream-1db4135e32e03c0131301ed46d906a2bf8f08c9b.tar.gz upstream-1db4135e32e03c0131301ed46d906a2bf8f08c9b.tar.bz2 upstream-1db4135e32e03c0131301ed46d906a2bf8f08c9b.zip | |
cns3xxx: add preliminary 4.9 support
Adds preliminary kernel 4.9 support for this target.
- Refreshed/Updated all patches
Added 3 new patches:
- 093 --> Add virtual PCI MMIO mapping
- 230 --> Remove deprecated code
- 240 --> Rework AT24 eeprom code to use the new NVMEM API
Compiled & tested on cns3xxx (gw2388)
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Diffstat (limited to 'target/linux/cns3xxx/patches-4.9/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch')
| -rw-r--r-- | target/linux/cns3xxx/patches-4.9/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/patches-4.9/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch b/target/linux/cns3xxx/patches-4.9/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch new file mode 100644 index 0000000000..cc78cb447a --- /dev/null +++ b/target/linux/cns3xxx/patches-4.9/130-Extend-PCIE_BUS_PEER2PEER-to-set-MRSS-128-to-fix-CNS3xxx-BM-DMA..patch @@ -0,0 +1,23 @@ +--- a/drivers/pci/probe.c ++++ b/drivers/pci/probe.c +@@ -2002,7 +2002,8 @@ static void pcie_write_mrrs(struct pci_d + /* In the "safe" case, do not configure the MRRS. There appear to be + * issues with setting MRRS to 0 on a number of devices. + */ +- if (pcie_bus_config != PCIE_BUS_PERFORMANCE) ++ if (pcie_bus_config != PCIE_BUS_PERFORMANCE && ++ pcie_bus_config != PCIE_BUS_PEER2PEER) + return; + + /* For Max performance, the MRRS must be set to the largest supported +--- a/include/linux/pci.h ++++ b/include/linux/pci.h +@@ -778,7 +778,7 @@ enum pcie_bus_config_types { + PCIE_BUS_DEFAULT, /* ensure MPS matches upstream bridge */ + PCIE_BUS_SAFE, /* use largest MPS boot-time devices support */ + PCIE_BUS_PERFORMANCE, /* use MPS and MRRS for best performance */ +- PCIE_BUS_PEER2PEER, /* set MPS = 128 for all devices */ ++ PCIE_BUS_PEER2PEER, /* set MPS and MRSS to 128 for all devices */ + }; + + extern enum pcie_bus_config_types pcie_bus_config; |