From 4cf56ec07f673f99c87862dbb7e72bc077685474 Mon Sep 17 00:00:00 2001 From: Suneel Garapati Date: Sat, 19 Oct 2019 17:10:20 -0700 Subject: pci: pci-uclass: Add multi entry support for memory regions Enable PCI memory regions in ranges property to be of multiple entry. This helps to add support for SoC's like OcteonTX/TX2 where every peripheral is on PCI bus. Signed-off-by: Suneel Garapati Cc: Simon Glass Cc: Bin Meng --- drivers/pci/Kconfig | 10 ++++++++++ drivers/pci/pci-uclass.c | 9 ++++++--- 2 files changed, 16 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 5e0a39396bb..1c47a21101d 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -43,6 +43,16 @@ config PCI_PNP help Enable PCI memory and I/O space resource allocation and assignment. +config PCI_REGION_MULTI_ENTRY + bool "Enable Multiple entries of region type MEMORY in ranges for PCI" + depends on PCI || DM_PCI + default n + help + Enable PCI memory regions to be of multiple entry. Multiple entry + here refers to allow more than one count of address ranges for MEMORY + region type. This helps to add support for SoC's like OcteonTX/TX2 + where every peripheral is on the PCI bus. + config PCIE_ECAM_GENERIC bool "Generic ECAM-based PCI host controller support" default n diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index cf1bbccbba3..19ea3ae9c1e 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -936,10 +936,13 @@ static void decode_regions(struct pci_controller *hose, ofnode parent_node, } pos = -1; - for (i = 0; i < hose->region_count; i++) { - if (hose->regions[i].flags == type) - pos = i; + if (!IS_ENABLED(CONFIG_PCI_REGION_MULTI_ENTRY)) { + for (i = 0; i < hose->region_count; i++) { + if (hose->regions[i].flags == type) + pos = i; + } } + if (pos == -1) pos = hose->region_count++; debug(" - type=%d, pos=%d\n", type, pos); -- cgit v1.3.1