Add four main boot methods to developer build

include/configs/chromeos/developer.h

 /*
  * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef __configs_chromeos_developer_h__
 #define __configs_chromeos_developer_h__
 
 #include <configs/chromeos/common.h>
@@ skipping 26 matching lines @@
 
 /*
  * The following make using the console nicer.
  */
 #define CONFIG_DISPLAY_CPUINFO          1
 
 #define CONFIG_SYS_LONGHELP             1
 #define CONFIG_CMDLINE_EDITING          1
 #define CONFIG_COMMAND_HISTORY          1
 #define CONFIG_AUTOCOMPLETE             1
+#define CONFIG_SYS_HUSH_PARSER          1
+#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
 
 /*
  * Recovery, normal and stub configs define CONFIG_ENV_IS_NOWHERE, but this
  * developer config requires a saved environment. The developer header file
  * in include/config/chromeos/<arch>/developer.h should define where the
  * environment is, for example CONFIG_ENV_IS_IN_SPI_FLASH for SPI flash.
  * If a saved environment is not available for a particular architecture or
  * board, you can define CONFIG_ENV_IS_NOWHERE in that header file instead.
  */
 #define CONFIG_CMD_SAVEENV
@@ skipping 11 matching lines @@
 #define CONFIG_CMD_DHCP
 
 /*
  * BOOTP options
  */
 #define CONFIG_BOOTP_SUBNETMASK
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_HOSTNAME
 #define CONFIG_BOOTP_BOOTPATH
 
+#define CONFIG_IPADDR           10.0.0.2

[vb, 2011/02/17 18:00:20]

why is this default setting required? You mention some DHCP server problems
without much elaborating, but giving out ip addreses/masks/dns/gateway configs
are very basic features of pretty much any DHCP server.

It is going to be a mess when several targets on the same network try using the
default IP config.

[sjg, 2011/02/17 18:55:47]

The problem is not DHCP server support, but access to it. For example at many
companies it is difficult to get the DHCP server to do what we want. It can
provide an IP address but everything else it sends is bogus.

I agree this is horrible, but we do have to work in this situation.

[vb, 2011/02/17 19:07:24]

I am almost splitting hairs here, but it could be a config flag for places where
the DHCP server is so deficient, all others should just work without any static
config. It sure would work just fine here.

[sjg, 2011/02/17 19:35:51]

Sadly it doesn't work here.

It is pretty common for a DHCP server to be set up for pxelinux for example. In
any case we typically want our local workstation to be the tfto and NFS server,
which the DHCP will not know about.

+#define CONFIG_SERVERIP         10.0.0.1
+#define CONFIG_BOOTFILE         uImage
+
+/*
+ * We decorate the nfsroot name so that multiple users / boards can easily
+ * share an NFS server:
+ *   user - username, e.g. 'frank'
+ *   board - board, e.g. 'seaboard'
+ *   serial - serial number, e.g. '1234'
+ */
+#define CONFIG_ROOTPATH         "/export/nfsroot-${user}-${board}-${serial#}"

[vb, 2011/02/17 18:00:20]

how about pulling these from build environment? 

[sjg, 2011/02/17 18:55:47]

Can you explain that, please? Not sure what you mean. I am wanting a standard
format for this root path which serve multiple users at a site.

[vb, 2011/02/17 19:07:24]

What I mean to say is that ${user} could be ${USER} from the build environment
and ${board} could be CONFIG_IMAGE_NAME generated by mkconfig. This way even a
default env would point at a specific directory.
 
Of course it should be possible to overwrite these with explicit environment
settings.

[sjg, 2011/02/17 19:35:51]

OK I see. I think this is a good idea. However U-Boot doesn't have USER or BOARD
in its config - CONFIG_IMAGE_NAME is 'chromeos/tegra2/seaboard/developer' which
is not suitable as a tftp filename (we just want 'seaboard'.

Do you want to add these things to U-Boot's mkconfig? If so I am happy to come
back later and move to using it. But I am a little concerned about what upstream
might think.

+
+
+
 #endif //__configs_chromeos_developer_h__