drivers: pci: add pcie support for fu740
Add pcie driver for SiFive fu740, the driver depends on
fu740 gpio, clk and reset driver to do init. Force running at Gen1
for better capatible enumeration.
Several devices are tested:
a) M.2 NVMe SSD
b) USB-to-PCI adapter
c) Ethernet adapter (E1000 compatible)
Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index d5b6018..b2b7b25 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -97,6 +97,16 @@
Armada-8K SoCs. The PCIe controller on Armada-8K is based on
DesignWare hardware.
+config PCIE_DW_SIFIVE
+ bool "Enable SiFive FU740 PCIe"
+ depends on CLK_SIFIVE_PRCI
+ depends on RESET_SIFIVE
+ depends on SIFIVE_GPIO
+ select PCIE_DW_COMMON
+ help
+ Say Y here if you want to enable PCIe controller support on
+ FU740.
+
config PCIE_FSL
bool "FSL PowerPC PCIe support"
depends on DM_PCI