spi: Add Qualcomm QUP SPI controller driver
This patch adds support for the Qualcomm QUP SPI controller that is commonly found in most of Qualcomm SoC-s.
Driver currently supports v1.1.1, v2.1.1 and v2.2.1 HW.
FIFO and Block modes are supported, no support for DMA mode is planned.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Luka Kovacic <luka.kovacic@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 5df97c8..f7a9852 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -271,6 +271,16 @@
controller. If you have an embedded system with an AMBA(R)
bus and a PL022 controller, say Y or M here.
+config SPI_QUP
+ bool "Qualcomm SPI controller with QUP interface"
+ depends on ARCH_IPQ40XX
+ help
+ Qualcomm Universal Peripheral (QUP) core is an AHB slave that
+ provides a common data path (an output FIFO and an input FIFO)
+ for serial peripheral interface (SPI) mini-core. SPI in master
+ mode supports up to 50MHz, up to four chip selects, programmable
+ data path from 4 bits to 32 bits and numerous protocol variants.
+
config RENESAS_RPC_SPI
bool "Renesas RPC SPI driver"
depends on RCAR_GEN3 || RZA1