spi: cadence_qspi: Enable apb linear mode for apb read & write operations
On versal platform, enable apb linear mode for apb read and write
execute operations amd disable it when using dma reads. This is done by
xilinx_pm_request() secure calls when CONFIG_ZYNQMP_FIRMWARE is enabled,
else we use direct raw reads and writes in case of mini U-Boot.
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/20220512100535.16364-5-ashok.reddy.soma@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/drivers/spi/cadence_qspi.h b/drivers/spi/cadence_qspi.h
index 9d89e24..c8d16bb 100644
--- a/drivers/spi/cadence_qspi.h
+++ b/drivers/spi/cadence_qspi.h
@@ -284,5 +284,6 @@
int cadence_qspi_apb_wait_for_dma_cmplt(struct cadence_spi_plat *plat);
int cadence_qspi_apb_exec_flash_cmd(void *reg_base, unsigned int reg);
int cadence_qspi_versal_flash_reset(struct udevice *dev);
+void cadence_qspi_apb_enable_linear_mode(bool enable);
#endif /* __CADENCE_QSPI_H__ */