arm64: versal: Add versal specific cadence ospi driver
Add support for cadence ospi driver for Versal platform. This driver
provides support for DMA read operation which utilizes cadence qspi
driver.
If "cdns,is-dma" DT property is specified use dma for read operation
from cadence_qspi driver. As cadence_qspi_apb_dma_read() is defined in
cadence_ospi_versal driver add a weak function defination in
cadence_qspi driver.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Link: https://lore.kernel.org/r/20220512100535.16364-3-ashok.reddy.soma@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index e48d72d..766d563 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -136,6 +136,14 @@
int "Cadence QSPI reference clock value in Hz"
depends on HAS_CQSPI_REF_CLK
+config CADENCE_OSPI_VERSAL
+ bool "Configure Versal OSPI"
+ depends on ARCH_VERSAL && CADENCE_QSPI
+ imply DM_GPIO
+ help
+ This option is used to enable Versal OSPI DMA operations which
+ are used for ospi flash read using cadence qspi controller.
+
config CF_SPI
bool "ColdFire SPI driver"
help