diff options
Diffstat (limited to 'drivers/pci/pcie_layerscape_fixup.c')
| -rw-r--r-- | drivers/pci/pcie_layerscape_fixup.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/drivers/pci/pcie_layerscape_fixup.c b/drivers/pci/pcie_layerscape_fixup.c index c30a3303c4..47e621f7b5 100644 --- a/drivers/pci/pcie_layerscape_fixup.c +++ b/drivers/pci/pcie_layerscape_fixup.c @@ -37,173 +37,7 @@ static int ls_pcie_next_streamid(void) return next_stream_id++; } -#endif - -#ifndef CONFIG_DM_PCI - -#ifdef CONFIG_FSL_LSCH3 -/* - * Program a single LUT entry - */ -static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid, - u32 streamid) -{ - void __iomem *lut; - - lut = pcie->dbi + PCIE_LUT_BASE; - - /* leave mask as all zeroes, want to match all bits */ - writel((devid << 16), lut + PCIE_LUT_UDR(index)); - writel(streamid | PCIE_LUT_ENABLE, lut + PCIE_LUT_LDR(index)); -} - -/* - * An msi-map is a property to be added to the pci controller - * node. It is a table, where each entry consists of 4 fields - * e.g.: - * - * msi-map = <[devid] [phandle-to-msi-ctrl] [stream-id] [count] - * [devid] [phandle-to-msi-ctrl] [stream-id] [count]>; - */ -static void fdt_pcie_set_msi_map_entry(void *blob, struct ls_pcie *pcie, - u32 devid, u32 streamid) -{ - char pcie_path[19]; - u32 *prop; - u32 phandle; - int nodeoffset; - - /* find pci controller node */ - snprintf(pcie_path, sizeof(pcie_path), "/soc/pcie@%llx", - (u64)pcie->dbi); - nodeoffset = fdt_path_offset(blob, pcie_path); - if (nodeoffset < 0) { - printf("\n%s: ERROR: unable to update PCIe node: %s\n", - __func__, pcie_path); - return; - } - - /* get phandle to MSI controller */ - prop = (u32 *)fdt_getprop(blob, nodeoffset, "msi-parent", 0); - if (prop == NULL) { - printf("\n%s: ERROR: missing msi-parent: %s\n", __func__, - pcie_path); - return; - } - phandle = fdt32_to_cpu(*prop); - - /* set one msi-map row */ - fdt_appendprop_u32(blob, nodeoffset, "msi-map", devid); - fdt_appendprop_u32(blob, nodeoffset, "msi-map", phandle); - fdt_appendprop_u32(blob, nodeoffset, "msi-map", streamid); - fdt_appendprop_u32(blob, nodeoffset, "msi-map", 1); -} -static void fdt_fixup_pcie(void *blob) -{ - unsigned int found_multi = 0; - unsigned char header_type; - int index; - u32 streamid; - pci_dev_t dev, bdf; - int bus; - unsigned short id; - struct pci_controller *hose; - struct ls_pcie *pcie; - int i; - - for (i = 0, hose = pci_get_hose_head(); hose; hose = hose->next, i++) { - pcie = hose->priv_data; - for (bus = hose->first_busno; bus <= hose->last_busno; bus++) { - - for (dev = PCI_BDF(bus, 0, 0); - dev < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, - PCI_MAX_PCI_FUNCTIONS - 1); - dev += PCI_BDF(0, 0, 1)) { - - if (PCI_FUNC(dev) && !found_multi) - continue; - - pci_read_config_word(dev, PCI_VENDOR_ID, &id); - - pci_read_config_byte(dev, PCI_HEADER_TYPE, - &header_type); - - if ((id == 0xFFFF) || (id == 0x0000)) - continue; - - if (!PCI_FUNC(dev)) - found_multi = header_type & 0x80; - - streamid = ls_pcie_next_streamid(); - if (streamid < 0) { - debug("ERROR: no stream ids free\n"); - continue; - } - - index = ls_pcie_next_lut_index(pcie); - if (index < 0) { - debug("ERROR: no LUT indexes free\n"); - continue; - } - - /* the DT fixup must be relative to the hose first_busno */ - bdf = dev - PCI_BDF(hose->first_busno, 0, 0); - - /* map PCI b.d.f to streamID in LUT */ - ls_pcie_lut_set_mapping(pcie, index, bdf >> 8, - streamid); - - /* update msi-map in device tree */ - fdt_pcie_set_msi_map_entry(blob, pcie, bdf >> 8, - streamid); - } - } - } -} -#endif - -static void ft_pcie_ls_setup(void *blob, const char *pci_compat, - unsigned long ctrl_addr, enum srds_prtcl dev) -{ - int off; - - off = fdt_node_offset_by_compat_reg(blob, pci_compat, - (phys_addr_t)ctrl_addr); - if (off < 0) - return; - - if (!is_serdes_configured(dev)) - fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0); -} - -/* Fixup Kernel DT for PCIe */ -void ft_pci_setup(void *blob, bd_t *bd) -{ -#ifdef CONFIG_PCIE1 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE1_ADDR, PCIE1); -#endif - -#ifdef CONFIG_PCIE2 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE2_ADDR, PCIE2); -#endif - -#ifdef CONFIG_PCIE3 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE3_ADDR, PCIE3); -#endif - -#ifdef CONFIG_PCIE4 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE4_ADDR, PCIE4); -#endif - -#ifdef CONFIG_FSL_LSCH3 - fdt_fixup_pcie(blob); -#endif -} - -#else /* CONFIG_DM_PCI */ - -#ifdef CONFIG_FSL_LSCH3 static void lut_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset) { @@ -345,7 +179,6 @@ void ft_pci_setup(void *blob, bd_t *bd) fdt_fixup_pcie(blob); #endif } -#endif /* CONFIG_DM_PCI */ #else /* !CONFIG_OF_BOARD_SETUP */ void ft_pci_setup(void *blob, bd_t *bd) |