firmware: zynqmp: Swap addr_hi/low when PM_FPGA_LOAD is called

Don't know reason but in regular flow addr_hi/low are swapped in ATF. It
means when fpga load is done from EL3 there is a need to swap it for PMUFW
to load bitstream.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c
index 7583f24..d4dc856 100644 (file)
--- a/drivers/firmware/firmware-zynqmp.c
+++ b/drivers/firmware/firmware-zynqmp.c
@@ -165,6 +165,14 @@ int __maybe_unused xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2,
                 */
                u32 regs[] = {api_id, arg0, arg1, arg2, arg3};
 
+               if (api_id == PM_FPGA_LOAD) {
+                       /* Swap addr_hi/low because of incompatibility */
+                       u32 temp = regs[1];
+
+                       regs[1] = regs[2];
+                       regs[2] = temp;
+               }
+
                ipi_req(regs, PAYLOAD_ARG_CNT, ret_payload, PAYLOAD_ARG_CNT);
 #else
                return -EPERM;