fpga: zynqmp: Fix the nonsecure bitstream loading issue

Xilfpga library expects the size of bitstream in a pointer
but currenly we are passing the size as a value. This patch
fixes this issue.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

drivers/fpga/zynqmppl.c

@@ -11,6 +11,7 @@
 #include <zynqmppl.h>
 #include <linux/sizes.h>
 #include <asm/arch/sys_proto.h>
+#include <memalign.h>
 
 #define DUMMY_WORD	0xffffffff
 
@@ -195,6 +196,7 @@ static int zynqmp_validate_bitstream(xilinx_desc *desc, const void *buf,
 static int zynqmp_load(xilinx_desc *desc, const void *buf, size_t bsize,
 		     bitstream_type bstype)
 {
+	ALLOC_CACHE_ALIGN_BUFFER(u32, bsizeptr, 1);
 	u32 swap;
 	ulong bin_buf;
 	int ret;
@@ -205,15 +207,17 @@ static int zynqmp_load(xilinx_desc *desc, const void *buf, size_t bsize,
 		return FPGA_FAIL;
 
 	bin_buf = zynqmp_align_dma_buffer((u32 *)buf, bsize, swap);
+	bsizeptr = (u32 *)&bsize;
 
 	debug("%s called!\n", __func__);
 	flush_dcache_range(bin_buf, bin_buf + bsize);
+	flush_dcache_range((ulong)bsizeptr, (ulong)bsizeptr + sizeof(size_t));
 
 	buf_lo = (u32)bin_buf;
 	buf_hi = upper_32_bits(bin_buf);
 	bstype |= BIT(ZYNQMP_FPGA_BIT_NS);
-	ret = invoke_smc(ZYNQMP_SIP_SVC_PM_FPGA_LOAD, buf_lo, buf_hi, bsize,
-			 bstype, ret_payload);
+	ret = invoke_smc(ZYNQMP_SIP_SVC_PM_FPGA_LOAD, buf_lo, buf_hi,
+			 (u32)(uintptr_t)bsizeptr, bstype, ret_payload);
 	if (ret)
 		debug("PL FPGA LOAD fail\n");