[U-Boot] [PATCH 2/3] fpga: zynqpl: Do not place bitstream below 1MB
Michal Simek
michal.simek at xilinx.com
Thu Oct 17 17:22:15 CEST 2013
DMA doesn't work when src is placed below 1MB limit.
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
Acked-by: Jagannadha Sutradharudu Teki <jaganna at xilinx.com>
---
drivers/fpga/zynqpl.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c
index f2f49b5..1effbad 100644
--- a/drivers/fpga/zynqpl.c
+++ b/drivers/fpga/zynqpl.c
@@ -10,6 +10,7 @@
#include <common.h>
#include <asm/io.h>
#include <zynqpl.h>
+#include <asm/sizes.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
@@ -177,6 +178,12 @@ int zynq_load(Xilinx_desc *desc, const void *buf, size_t bsize)
return FPGA_FAIL;
}
+ if ((u32)buf < SZ_1M) {
+ printf("%s: Bitstream has to be placed up to 1MB (%x)\n",
+ __func__, (u32)buf);
+ return FPGA_FAIL;
+ }
+
if ((u32)buf != ALIGN((u32)buf, ARCH_DMA_MINALIGN)) {
u32 *new_buf = (u32 *)ALIGN((u32)buf, ARCH_DMA_MINALIGN);
--
1.8.2.3
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