doc: imx: Move SPD related info to the appropriate doc
Currently the Serial Download Protocol tools and procedure are
documented in two places:
- doc/imx/README.sdp
- doc/imx/README.imx6
It is better to consolidate all SDP related information into
README.sdp file, so move the content from README.imx6 to
README.sdp.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
diff --git a/doc/imx/README.sdp b/doc/imx/README.sdp
index 178ea68..6ea6e41 100644
--- a/doc/imx/README.sdp
+++ b/doc/imx/README.sdp
@@ -16,14 +16,19 @@
U-Boot implementation has primarly been tested using the open source
imx_loader utility (https://github.com/boundarydevices/imx_usb_loader).
+imx_usb_loader is a very nice tool by Boundary Devices that allow to
+install U-Boot without a JTAG debugger, using the USB boot mode as
+described in the manual. It is a replacement for Freescale's
+MFGTOOLS.
+
The host side utilities are typically capable to interpret the i.MX
specific image header (see doc/README.imximage). There are extensions
for imx_loader's imx_usb utility which allow to interpret the U-Boot
specific legacy image format (see mkimage(1)). Also the U-Boot side
support beside the i.MX specific header the U-Boot legacy header.
-Usage
------
+1. Using imx_usb_loader for first install with SPL
+--------------------------------------------------
This implementation can be started in U-Boot using the sdp command
(CONFIG_CMD_USB_SDP) or in SPL if Serial Downloader boot mode has been
@@ -98,3 +103,16 @@
of imx_usb without arguments:
# imx_usb
+
+2. Using imx_usb_loader non-SPL images
+---------------------------------------
+
+Booting in USB mode, the i.MX6 announces itself to the Linux Host as:
+
+Bus 001 Device 111: ID 15a2:0061 Freescale Semiconductor, Inc.
+
+imx_usb_loader is able to download a single file (u-boot.imx)
+to the board. For boards without SPL support, it is enough to
+issue the command:
+
+ sudo ../imx_usb_loader/imx_usb -v u-boot.imx