sf: add Gigadevice gd25q16c entry

[u-boot] / doc / README.imx6

diff --git a/doc/README.imx6 b/doc/README.imx6
index 0e00968731f1d81a167c37aec35050b2430dc61e..b0644f8491f8ebe0f89c5742f77ec7822799aeb1 100644 (file)
--- a/doc/README.imx6
+++ b/doc/README.imx6
@@ -110,80 +110,6 @@ issue the command:
 
        sudo ../imx_usb_loader/imx_usb -v u-boot.imx
 
-Getting U-Boot when SPL support is active, it requires
-two downloads. imx_usb_loader downloads the SPL into
-OCRAM and starts it. SPL will check for a valid u-boot.img, and
-because it is not found, it will wait for it using the y-modem
-protocol via the console.
-
-A first install is then possible by combining imx_usb_loader with
-another tool such as kermit.
-
-sudo ../imx_usb_loader/imx_usb -v SPL
-kermit kermit_uboot
-
-and kermit_uboot contains something like this (set line should be adjusted):
-
-set line /dev/ttyUSB1
-set speed 115200
-SET CARRIER-WATCH OFF
-set flow-control none
-set handshake none
-set prefixing all
-set file type bin
-set protocol ymodem
-send u-boot.img
-c
-
-The last "c" command tells kermit (from ckermit package in most distros)
-to switch from command line mode to communication mode, and when the
-script is finished, the U-Boot prompt is shown in the same shell.
-
-3. Using Secure Boot on i.MX6 machines with SPL support
--------------------------------------------------------
-
-This version of U-Boot is able to build a signable version of the SPL
-as well as a signable version of the U-Boot image. The signature can
-be verified through High Assurance Boot (HAB).
-
-CONFIG_SECURE_BOOT is needed to build those two binaries.
-After building, you need to create a command sequence file and use
-Freescales Code Signing Tool to sign both binaries. After creation,
-the mkimage tool outputs the required information about the HAB Blocks
-parameter for the CSF. During the build, the information is preserved
-in log files named as the binaries. (SPL.log and u-boot-ivt.log).
-
-More information about the CSF and HAB can be found in the AN4581.
-https://cache.freescale.com/files/32bit/doc/app_note/AN4581.pdf
-
-We don't want to explain how to create a PKI tree or SRK table as
-this is well explained in the Application Note.
-
-Example Output of the SPL (imximage) creation:
- Image Type:   Freescale IMX Boot Image
- Image Ver:    2 (i.MX53/6/7 compatible)
- Mode:         DCD
- Data Size:    61440 Bytes = 60.00 kB = 0.06 MB
- Load Address: 00907420
- Entry Point:  00908000
- HAB Blocks:   00907400 00000000 0000cc00
-
-Example Output of the u-boot-ivt.img (firmware_ivt) creation:
- Image Name:   U-Boot 2016.11-rc1-31589-g2a4411
- Created:      Sat Nov  5 21:53:28 2016
- Image Type:   ARM U-Boot Firmware with HABv4 IVT (uncompressed)
- Data Size:    352192 Bytes = 343.94 kB = 0.34 MB
- Load Address: 17800000
- Entry Point:  00000000
- HAB Blocks:   0x177fffc0   0x0000   0x00054020
-
-The CST (Code Signing Tool) can be downloaded from NXP.
-# Compile CSF and create signature
-./cst --o csf-u-boot.bin < command_sequence_uboot.csf
-./cst --o csf-SPL.bin < command_sequence_spl.csf
-# Append compiled CSF to Binary
-cat SPL csf-SPL.bin > SPL-signed
-cat u-boot-ivt.img csf-u-boot.bin > u-boot-signed.img
-
-These two signed binaries can be used on an i.MX6 in closed
-configuration when the according SRK Table Hash has been flashed.
\ No newline at end of file
+In order to load SPL and u-boot.img via imx_usb_loader tool,
+please refer to doc/README.sdp.
+