doc: board: xilinx: zynq.rst: add description how to flash a SD card

Add a short description in the ZYNQ documentation how to prepare a SD card and
copy the related images to SD card.

Signed-off-by: Johannes Krottmayer <krjdev@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/doc/board/xilinx/zynq.rst b/doc/board/xilinx/zynq.rst
index 6a09df1d15f8e094561e020ca684c6de6f20b2a2..f564434b69c4a9446bbae32f4087e259a825ddae 100644 (file)
--- a/doc/board/xilinx/zynq.rst
+++ b/doc/board/xilinx/zynq.rst
@@ -60,6 +60,25 @@ SLCR bootmode register Bit[3:0] values
 "modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot"
 bootmode strings at runtime.
 
+Flashing
+--------
+
+SD Card
+^^^^^^^
+
+To write an image that boots from a SD card first create a FAT32 partition
+and a FAT32 filesystem on the SD card::
+
+        sudo fdisk /dev/sdx
+        sudo mkfs.vfat -F 32 /dev/sdx1
+
+Mount the SD card and copy the SPL and U-Boot to the root directory of the
+SD card::
+
+        sudo mount -t vfat /dev/sdx1 /mnt
+        sudo cp spl/boot.bin /mnt
+        sudo cp u-boot.img /mnt
+
 Mainline status
 ---------------