diff options
| author | Pali Rohár <pali@kernel.org> | 2022-01-13 16:28:04 +0300 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2022-01-20 13:35:29 +0300 |
| commit | 4364071362b5d2dd7949f0734e96ab9d18ce6322 (patch) | |
| tree | f4bdae743472b90b88746450884a05f20d827eb5 /drivers | |
| parent | e3f92093d71d12399d239d0e6321dfba7bd5fef7 (diff) | |
| download | u-boot-4364071362b5d2dd7949f0734e96ab9d18ce6322.tar.xz | |
pci: pci_mvebu: Add support for Kirkwood PCIe controllers
Kirkwood uses macros KW_DEFADR_PCI_MEM and KW_DEFADR_PCI_IO for base
address of PCIe mappings. Size of PCIe windows is not defined in any macro
yet, so export them in new KW_DEFADR_PCI_MEM_SIZE and KW_DEFADR_PCI_IO_SIZE
macros.
Kirkwood arch code already maps mbus windows for io and mem, so avoid
calling mvebu_mbus_add_window_by_id() function which would try to do
duplicate window mapping.
Kirkwood PCIe controllers already use "marvell,kirkwood-pcie" DT compatible
string, so mark pci_mvebu.c driver as compatible for it.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/pci/pci_mvebu.c | 16 |
2 files changed, 19 insertions, 3 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 630d6e6cc5..69141344c8 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -262,13 +262,13 @@ config PCIE_IPROC Say Y here if you want to enable Broadcom iProc PCIe controller, config PCI_MVEBU - bool "Enable Armada XP/38x PCIe driver" - depends on ARCH_MVEBU + bool "Enable Kirkwood / Armada 370/XP/375/38x PCIe driver" + depends on (ARCH_KIRKWOOD || ARCH_MVEBU) select MISC select DM_RESET help Say Y here if you want to enable PCIe controller support on - Armada XP/38x SoCs. + Kirkwood and Armada 370/XP/375/38x SoCs. config PCIE_DW_COMMON bool diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c index b3ea034a28..d99a99bae9 100644 --- a/drivers/pci/pci_mvebu.c +++ b/drivers/pci/pci_mvebu.c @@ -498,6 +498,13 @@ static int mvebu_pcie_probe(struct udevice *dev) mvebu_pcie_set_local_bus_nr(pcie, 0); mvebu_pcie_set_local_dev_nr(pcie, 1); + /* + * Kirkwood arch code already maps mbus windows for PCIe IO and MEM. + * So skip calling mvebu_mbus_add_window_by_id() function as it would + * fail on error "conflicts with another window" which means conflict + * with existing PCIe window mappings. + */ +#ifndef CONFIG_ARCH_KIRKWOOD if (resource_size(&pcie->mem) && mvebu_mbus_add_window_by_id(pcie->mem_target, pcie->mem_attr, (phys_addr_t)pcie->mem.start, @@ -519,6 +526,7 @@ static int mvebu_pcie_probe(struct udevice *dev) pcie->io.start = 0; pcie->io.end = -1; } +#endif /* Setup windows and configure host bridge */ mvebu_pcie_setup_wins(pcie); @@ -725,10 +733,17 @@ static int mvebu_pcie_bind(struct udevice *parent) } ports_count = 0; +#ifdef CONFIG_ARCH_KIRKWOOD + mem.start = KW_DEFADR_PCI_MEM; + mem.end = KW_DEFADR_PCI_MEM + KW_DEFADR_PCI_MEM_SIZE - 1; + io.start = KW_DEFADR_PCI_IO; + io.end = KW_DEFADR_PCI_IO + KW_DEFADR_PCI_IO_SIZE - 1; +#else mem.start = MBUS_PCI_MEM_BASE; mem.end = MBUS_PCI_MEM_BASE + MBUS_PCI_MEM_SIZE - 1; io.start = MBUS_PCI_IO_BASE; io.end = MBUS_PCI_IO_BASE + MBUS_PCI_IO_SIZE - 1; +#endif /* First phase: Fill mvebu_pcie struct for each port */ ofnode_for_each_subnode(subnode, dev_ofnode(parent)) { @@ -809,6 +824,7 @@ static int mvebu_pcie_bind(struct udevice *parent) static const struct udevice_id mvebu_pcie_ids[] = { { .compatible = "marvell,armada-xp-pcie" }, { .compatible = "marvell,armada-370-pcie" }, + { .compatible = "marvell,kirkwood-pcie" }, { } }; |