ARM: keystone2: keystone_nav: make it dependent on keystone driver

[people/ms/u-boot.git] / README

diff --git a/README b/README
index fe5cacbaa55a86450838b0cc129b538732a8daea..55c3fcdca4820794dd21e19394b91bd56a9f6131 100644 (file)
--- a/README
+++ b/README
@@ -4676,6 +4676,33 @@ within that device.
        window->master inbound window->master LAW->the ucode address in
        master's memory space.
 
+Freescale Layerscape Management Complex Firmware Support:
+---------------------------------------------------------
+The Freescale Layerscape Management Complex (MC) supports the loading of
+"firmware".
+This firmware often needs to be loaded during U-Boot booting, so macros
+are used to identify the storage device (NOR flash, SPI, etc) and the address
+within that device.
+
+- CONFIG_FSL_MC_ENET
+       Enable the MC driver for Layerscape SoCs.
+
+- CONFIG_SYS_LS_MC_FW_ADDR
+       The address in the storage device where the firmware is located.  The
+       meaning of this address depends on which CONFIG_SYS_LS_MC_FW_IN_xxx macro
+       is also specified.
+
+- CONFIG_SYS_LS_MC_FW_LENGTH
+       The maximum possible size of the firmware.  The firmware binary format
+       has a field that specifies the actual size of the firmware, but it
+       might not be possible to read any part of the firmware unless some
+       local storage is allocated to hold the entire firmware first.
+
+- CONFIG_SYS_LS_MC_FW_IN_NOR
+       Specifies that MC firmware is located in NOR flash, mapped as
+       normal addressable memory via the LBC. CONFIG_SYS_LS_MC_FW_ADDR is the
+       virtual address in NOR flash.
+
 Building the Software:
 ======================