bee98e2c8c
commit d45e3c1a5979efd40dbbac9a5c3586f4fa41f734 upstream. R-Car PCIe controller has support to map multiple memory regions for mapping the outbound memory in local system also the controller limits single allocation for each region (that is, once a chunk is used from the region it cannot be used to allocate a new one). This features inspires to add support for handling multiple memory bases in endpoint framework. With this patch pci_epc_mem_init() initializes address space for endpoint controller which support single window and pci_epc_multi_mem_init() initializes multiple windows supported by endpoint controller. Link: https://lore.kernel.org/r/1588854799-13710-6-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> [PL: manually applied changes to pcie-designware-ep.c] Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Pavel Machek <pavel@denx.de>