arm, da850evm: Add an SPL for SPI boot
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Heiko Schocher <hs@denx.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Tom Rini <trini@ti.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
diff --git a/doc/README.davinci b/doc/README.davinci
index 5f1bdc8..aa7c850 100644
--- a/doc/README.davinci
+++ b/doc/README.davinci
@@ -95,6 +95,15 @@
The programmers and UBL are always released as part of any standard TI
software release associated with an SOC.
+Alternative boot method (DA850 EVM only):
+For the DA850 EVM an SPL (secondary program loader, see doc/README.SPL)
+is provided to load U-Boot directly from SPI flash. In this case, the
+SPL does the low level initialization that is otherwise done by the SPL.
+To build U-Boot with this SPL, do
+make da850evm_config
+make u-boot.ais
+and program the resulting u-boot.ais file to the SPI flash of the DA850 EVM.
+
Environment Variables
=====================