powerpc: p1022ds: Enable P1022DS to boot from SD Card with SPL

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

diff --git a/README b/README
index d0aeb526209faa777254e495216a1171f0fb6f02..18f5233acecf535d6792b4e37ffab9f924b2a2d8 100644 (file)
--- a/README
+++ b/README
@@ -1,24 +1,8 @@
 #
-# (C) Copyright 2000 - 2012
+# (C) Copyright 2000 - 2013
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
+# SPDX-License-Identifier:     GPL-2.0+
 #
 
 Summary:
@@ -422,13 +406,25 @@ The following options need to be configured:
                This is the value to write into CCSR offset 0x18600
                according to the A004510 workaround.
 
+               CONFIG_SYS_FSL_DSP_DDR_ADDR
+               This value denotes start offset of DDR memory which is
+               connected exclusively to the DSP cores.
+
                CONFIG_SYS_FSL_DSP_M2_RAM_ADDR
                This value denotes start offset of M2 memory
                which is directly connected to the DSP core.
 
+               CONFIG_SYS_FSL_DSP_M3_RAM_ADDR
+               This value denotes start offset of M3 memory which is directly
+               connected to the DSP core.
+
                CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
                This value denotes start offset of DSP CCSR space.
 
+               CONFIG_SYS_FSL_DDR_EMU
+               Specify emulator support for DDR. Some DDR features such as
+               deskew training are not available.
+
 - Generic CPU options:
                CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 
@@ -2645,6 +2641,21 @@ CBFS (Coreboot Filesystem) support
                Note: There is also a sha1sum command, which should perhaps
                be deprecated in favour of 'hash sha1'.
 
+- Freescale i.MX specific commands:
+               CONFIG_CMD_HDMIDETECT
+               This enables 'hdmidet' command which returns true if an
+               HDMI monitor is detected.  This command is i.MX 6 specific.
+
+               CONFIG_CMD_BMODE
+               This enables the 'bmode' (bootmode) command for forcing
+               a boot from specific media.
+
+               This is useful for forcing the ROM's usb downloader to
+               activate upon a watchdog reset which is nice when iterating
+               on U-Boot.  Using the reset button or running bmode normal
+               will set it back to normal.  This command currently
+               supports i.MX53 and i.MX6.
+
 - Signing support:
                CONFIG_RSA
 
@@ -3079,6 +3090,14 @@ FIT uImage format:
                Support for NAND boot using simple NAND drivers that
                expose the cmd_ctrl() interface.
 
+               CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+               Set for the SPL on PPC mpc8xxx targets, support for
+               arch/powerpc/cpu/mpc8xxx/ddr/libddr.o in SPL binary.
+
+               CONFIG_SPL_COMMON_INIT_DDR
+               Set for common ddr init with serial presence detect in
+               SPL binary.
+
                CONFIG_SYS_NAND_5_ADDR_CYCLE, CONFIG_SYS_NAND_PAGE_COUNT,
                CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE,
                CONFIG_SYS_NAND_BLOCK_SIZE, CONFIG_SYS_NAND_BAD_BLOCK_POS,
@@ -4631,6 +4650,12 @@ List of environment variables (most likely not complete):
 
   npe_ucode    - set load address for the NPE microcode
 
+  silent_linux  - If set then linux will be told to boot silently, by
+                 changing the console to be empty. If "yes" it will be
+                 made silent. If "no" it will not be made silent. If
+                 unset, then it will be made silent if the U-Boot console
+                 is silent.
+
   tftpsrcport  - If this is set, the value is used for TFTP's
                  UDP source port.