Move streamId allocation to layerscape common device tree fixup. Calculate streamId based on SoC variant.
Signed-off-by: Wasim Khan wasim.khan@nxp.com --- Changes in v3:None
Changes in v2:None
drivers/pci/pcie_layerscape_fixup.c | 16 ++++------------ drivers/pci/pcie_layerscape_fixup_common.c | 24 ++++++++++++++++++++++++ drivers/pci/pcie_layerscape_fixup_common.h | 1 + drivers/pci/pcie_layerscape_gen4_fixup.c | 18 ++++-------------- 4 files changed, 33 insertions(+), 26 deletions(-)
diff --git a/drivers/pci/pcie_layerscape_fixup.c b/drivers/pci/pcie_layerscape_fixup.c index 7635df7..b1d2470 100644 --- a/drivers/pci/pcie_layerscape_fixup.c +++ b/drivers/pci/pcie_layerscape_fixup.c @@ -31,17 +31,6 @@ static int ls_pcie_next_lut_index(struct ls_pcie *pcie) return -ENOSPC; /* LUT is full */ }
-/* returns the next available streamid for pcie, -errno if failed */ -static int ls_pcie_next_streamid(void) -{ - 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++; -} - static void lut_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset) { @@ -192,10 +181,13 @@ static void fdt_fixup_pcie_ls(void *blob) bus = bus->parent; pcie = dev_get_priv(bus);
- streamid = ls_pcie_next_streamid(); + streamid = pcie_next_streamid(pcie->stream_id_cur, pcie->idx); + if (streamid < 0) { debug("ERROR: no stream ids free\n"); continue; + } else { + pcie->stream_id_cur++; }
index = ls_pcie_next_lut_index(pcie); diff --git a/drivers/pci/pcie_layerscape_fixup_common.c b/drivers/pci/pcie_layerscape_fixup_common.c index b953952..3458ae8 100644 --- a/drivers/pci/pcie_layerscape_fixup_common.c +++ b/drivers/pci/pcie_layerscape_fixup_common.c @@ -27,3 +27,27 @@ void ft_pci_setup(void *blob, bd_t *bd) ft_pci_setup_ls(blob, bd); #endif /* CONFIG_FSL_LAYERSCAPE */ } + +#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 */ diff --git a/drivers/pci/pcie_layerscape_fixup_common.h b/drivers/pci/pcie_layerscape_fixup_common.h index 5640406..e747396 100644 --- a/drivers/pci/pcie_layerscape_fixup_common.h +++ b/drivers/pci/pcie_layerscape_fixup_common.h @@ -22,5 +22,6 @@ static void ft_pci_setup_ls_gen4(void *blob, bd_t *bd) } #endif #endif /* CONFIG_FSL_LAYERSCAPE */ +int pcie_next_streamid(int currentid, int id);
#endif //_PCIE_LAYERSCAPE_FIXUP_COMMON_H_ diff --git a/drivers/pci/pcie_layerscape_gen4_fixup.c b/drivers/pci/pcie_layerscape_gen4_fixup.c index 480d242..28cfc9a 100644 --- a/drivers/pci/pcie_layerscape_gen4_fixup.c +++ b/drivers/pci/pcie_layerscape_gen4_fixup.c @@ -33,19 +33,6 @@ static int ls_pcie_g4_next_lut_index(struct ls_pcie_g4 *pcie) return -ENOSPC; /* LUT is full */ }
-/* returns the next available streamid for pcie, -errno if failed */ -static int ls_pcie_g4_next_streamid(struct ls_pcie_g4 *pcie) -{ - int stream_id = pcie->stream_id_cur; - - if (stream_id > FSL_PEX_STREAM_ID_END) - return -EINVAL; - - pcie->stream_id_cur++; - - return stream_id | ((pcie->idx + 1) << 11); -} - /* * Program a single LUT entry */ @@ -162,10 +149,13 @@ static void fdt_fixup_pcie_ls_gen4(void *blob) bus = bus->parent; pcie = dev_get_priv(bus);
- streamid = ls_pcie_g4_next_streamid(pcie); + streamid = pcie_next_streamid(pcie->stream_id_cur, pcie->idx); + if (streamid < 0) { debug("ERROR: no stream ids free\n"); continue; + } else { + pcie->stream_id_cur++; }
index = ls_pcie_g4_next_lut_index(pcie);