doc: ti-secure: Add ULO info for AM57xx/DRA7xx secure devices from TI

Booting from UART and USB on HS devices is now supported for this
platform. Update documentation for the same.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/doc/README.ti-secure b/doc/README.ti-secure
index 4b5380c..7695025 100644 (file)
--- a/doc/README.ti-secure
+++ b/doc/README.ti-secure
@@ -108,7 +108,8 @@ Booting of U-Boot SPL
        Invoking the script for DRA7xx/AM57xx Secure Devices
        ====================================================
 
-       create-boot-image.sh <IMAGE_TYPE> <INPUT_FILE> <OUTPUT_FILE>
+       create-boot-image.sh \
+               <IMAGE_TYPE> <INPUT_FILE> <OUTPUT_FILE> <SPL_LOAD_ADDR>
 
        <IMAGE_TYPE> is a value that specifies the type of the image to
        generate OR the action the image generation tool will take. Valid
@@ -116,7 +117,6 @@ Booting of U-Boot SPL
                X-LOADER - Generates an image for NOR or QSPI boot modes
                MLO - Generates an image for SD/MMC/eMMC boot modes
                ULO - Generates an image for USB/UART peripheral boot modes
-               Note: ULO is not yet used by the u-boot build process
 
        <INPUT_FILE> is the full path and filename of the public world boot
        loader binary file (for this platform, this is always u-boot-spl.bin).
@@ -130,9 +130,13 @@ Booting of U-Boot SPL
                the device ROM bootloader requires for loading from
                the FAT partition of an SD card (same as on
                non-secure devices)
+       u-boot-spl_HS_ULO - boot image for USB/UART peripheral boot modes
        u-boot-spl_HS_X-LOADER - boot image for all other flash memories
                including QSPI and NOR flash
 
+       <SPL_LOAD_ADDR> is the address at which SOC ROM should load the
+       <INPUT_FILE>
+
        Invoking the script for Keystone2 Secure Devices
        =============================================