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Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
 		2018-05-07 09:34:12 -04:00
..
bdm Coding Style cleanup: replace leading SPACEs by TABs 2013-10-14 16:06:54 -04:00
Kconfig kconfig: remove redundant "string" type in arch and board Kconfigs 2014-09-13 16:43:55 -04:00
MAINTAINERS MAINTAINERS: comment out blank M: field 2014-09-24 18:30:28 -04:00
Makefile SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
README doc: cleanup - move board READMEs into respective board directories 2012-07-29 15:42:02 +02:00
cobra5272.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
flash.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00

README 

File:		README.COBRA5272
Author:		Florian Schlote for Sentec elektronik (linux@sentec-elektronik.de)
Contents:	This is the README of u-boot (Universal bootloader) for our
		COBRA5272 board.
Version:	v01.00
Date:		Tue Mar 30 00:28:33 CEST 2004
License:	This document is published under the GNU GPL
______________________________________________________________________

CHANGES
040330   v01.00 Creation

______________________________________________________________________


CONFIGURING
-----------

1. Modify include/configs/cobra5272.h acc. to your prefs

2. If necessary, modify board/cobra5272/config.mk (see below)

3.

> make cobra5272_config

> make


Please refer to u-boot README (general info, u-boot-x-x-x/README),
to u-boot-x-x-x/doc/README.COBRA5272 and
to the comments in u-boot-x-x-x/include/configs/cobra5272.h

Configuring u-boot is done by commenting/uncommenting preprocessor defines.

Default configuration is

	FLASH version (for further info see subsection below)
	link address 0xffe00000

	16 MB RAM

	network enabled
	no default IP address for target, host set, no MACaddress set

	bootdelay for autoboot 5 sec.
	autoboot disabled


#-----------------------------------
# u-boot FLASH version & RAM version
#-----------------------------------

The u-boot bootloader for Coldfire processors can be configured

	1. as a standalone bootloader residing in flash & relocating itself to RAM on
	startup automatically => "FLASH version"

	2. as a RAM version which will not load from flash automatically as it needs a
	prestage bootloader ("chainloading") & is running only from the RAM address it
	is linked to => "RAM version"

	This version may be very helpful when installing u-boot for the first time
	since it can be used to make available s. th. like a "bootstrap
	mechanism".


How to build the different images:

------------------------------
Flash version
------------------------------

Compile u-boot

in dir ./u-boot-x-x-x/

please first check:

	in ./include/configs/cobra5272.h

		CONFIG_MONITOR_IS_IN_RAM has to be undefined, e. g. as follows:

		#if 0
			#define CONFIG_MONITOR_IS_IN_RAM
			/* define if monitor is started from a pre-loader */
		#endif

	=> u-boot as single bootloader starting from flash


	in board/cobra5272/config.mk CONFIG_SYS_TEXT_BASE should be

		CONFIG_SYS_TEXT_BASE = 0xffe00000

	=> linking address for u-boot as single bootloader stored in flash

then:

	host> make cobra5272_config
		rm -f include/config.h include/config.mk
		Configuring for cobra5272 board...
	host> make
		[...]

	host> cp u-boot.bin /tftpboot/u-boot_flash.bin


------------------------------
RAM version
------------------------------

in dir ./u-boot-x-x-x/

	host> make distclean

please modify the settings:

	in ./include/configs/cobra5272.h

		CONFIG_MONITOR_IS_IN_RAM now has to be defined, e. g. as follows:

		#if 1
			#define CONFIG_MONITOR_IS_IN_RAM
			/*define if monitor is started from a pre-loader */
		#endif

	=> u-boot as RAM version, chainloaded by another bootloader or using bdm cable


	in board/cobra5272/config.mk CONFIG_SYS_TEXT_BASE should be

		CONFIG_SYS_TEXT_BASE = 0x00020000

	=> target linking address for RAM


then:

	host> make cobra5272_config
		rm -f include/config.h include/config.mk
		Configuring for cobra5272 board...
	host> make
		[...]

	host> cp u-boot.bin /tftpboot/u-boot_ram.bin


----
HINT
----

If the m68k-elf-toolchain & the m68k-bdm-gdb is installed you can run the RAM
version by typing (in dir ./u-boot-x-x-x/)
"board/cobra5272/bdm/load-cobra_uboot" ,
in ./u-boot-x-x-x/ the RAM version u-boot (elf format) has to be available.