u-boot

History

Masahiro Yamada b75d8dc564 treewide: convert bd_t to struct bd_info by coccinelle The Linux coding style guide (Documentation/process/coding-style.rst) clearly says: It's a mistake to use typedef for structures and pointers. Besides, using typedef for structures is annoying when you try to make headers self-contained. Let's say you have the following function declaration in a header: void foo(bd_t bd); This is not self-contained since bd_t is not defined. To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h> #include <asm/u-boot.h> void foo(bd_t bd); Then, the include direcective pulls in more bloat needlessly. If you use 'struct bd_info' instead, it is enough to put a forward declaration as follows: struct bd_info; void foo(struct bd_info *bd); Right, typedef'ing bd_t is a mistake. I used coccinelle to generate this commit. The semantic patch that makes this change is as follows: <smpl> @@ typedef bd_t; @@ -bd_t +struct bd_info </smpl> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>		2020-07-17 09:30:13 -04:00
..
Kconfig	kconfig: remove redundant "string" type in arch and board Kconfigs	2014-09-13 16:43:55 -04:00
MAINTAINERS	board/freescale: Remove invalid fsl email addresses	2018-05-10 20:38:33 -04:00
Makefile	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
mpc8323erdb.c	treewide: convert bd_t to struct bd_info by coccinelle	2020-07-17 09:30:13 -04:00
README	Use correct spelling of "U-Boot"	2016-02-06 12:00:59 +01:00

README

Freescale MPC8323ERDB Board
-----------------------------------------

1.	Memory Map
	The memory map looks like this:

	0x0000_0000	0x03ff_ffff	DDR		 64M
	0x8000_0000	0x8fff_ffff	PCI MEM		 256M
	0x9000_0000	0x9fff_ffff	PCI_MMIO	 256M
	0xe000_0000	0xe00f_ffff	IMMR		 1M
	0xd000_0000	0xd3ff_ffff	PCI IO		 64M
	0xfe00_0000	0xfeff_ffff	NOR FLASH (CS0)	 16M

2.	Compilation

	Assuming you're using BASH (or similar) as your shell:

	export CROSS_COMPILE=your-cross-compiler-prefix-
	make distclean
	make MPC8323ERDB_config
	make

3.	Downloading and Flashing Images

3.1	Reflash U-Boot Image using U-Boot

	N.b, have an alternate means of programming
	the flash available if the new U-Boot doesn't boot.

	First try a:

	tftpboot $loadaddr $uboot

	to make sure that the TFTP load will succeed before
	an erase goes ahead and wipes out your current firmware.
	Then do a:

	run tftpflash

	which is a shorter version of the manual sequence:

	tftp $loadaddr u-boot.bin
	protect off fe000000 +$filesize
	erase fe000000 +$filesize
	cp.b $loadaddr fe000000 $filesize

	To keep your old U-Boot's environment variables, do a:

	saveenv

	prior to resetting the board.

3.2	Downloading and Booting Linux Kernel

	Ensure that all networking-related environment variables are set
	properly (including ipaddr, serverip, gatewayip (if needed),
	netmask, ethaddr, eth1addr, rootpath (if using NFS root),
	fdtfile, and bootfile).

	Then, do one of the following, depending on whether you
	want an NFS root or a ramdisk root:

	run nfsboot

	or

	run ramboot

4	Notes

	The console baudrate for MPC8323ERDB is 115200bps.