diff options
Diffstat (limited to 'drivers/pci/pcie_layerscape_fixup_common.c')
| -rw-r--r-- | drivers/pci/pcie_layerscape_fixup_common.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/pci/pcie_layerscape_fixup_common.c b/drivers/pci/pcie_layerscape_fixup_common.c index b32236e5f8..828dfff03f 100644 --- a/drivers/pci/pcie_layerscape_fixup_common.c +++ b/drivers/pci/pcie_layerscape_fixup_common.c @@ -25,3 +25,27 @@ void ft_pci_setup(void *blob, bd_t *bd) #endif /* CONFIG_PCIE_LAYERSCAPE_GEN4 */ ft_pci_setup_ls(blob, bd); } + +#if defined(CONFIG_FSL_LAYERSCAPE) +#ifdef CONFIG_ARCH_LX2160A +/* returns the next available streamid for pcie, -errno if failed */ +int pcie_next_streamid(int currentid, int idx) +{ + if (currentid > FSL_PEX_STREAM_ID_END) + return -EINVAL; + + return currentid | ((idx + 1) << 11); +} +#else +/* returns the next available streamid for pcie, -errno if failed */ +int pcie_next_streamid(int currentid, int idx) +{ + static int next_stream_id = FSL_PEX_STREAM_ID_START; + + if (next_stream_id > FSL_PEX_STREAM_ID_END) + return -EINVAL; + + return next_stream_id++; +} +#endif +#endif /* CONFIG_FSL_LAYERSCAPE */ |