[J-u-boot.git] / doc / README.mpc8323erdb

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.
Commit	Line	Data
1c274c4e KP	1	Freescale MPC8323ERDB Board
	2	-----------------------------------------
	3
	4	1. Memory Map
	5	The memory map looks like this:
	6
	7	0x0000_0000 0x03ff_ffff DDR 64M
	8	0x8000_0000 0x8fff_ffff PCI MEM 256M
	9	0x9000_0000 0x9fff_ffff PCI_MMIO 256M
	10	0xe000_0000 0xe00f_ffff IMMR 1M
	11	0xd000_0000 0xd3ff_ffff PCI IO 64M
	12	0xfe00_0000 0xfeff_ffff NOR FLASH (CS0) 16M
	13
	14	2. Compilation
	15
	16	Assuming you're using BASH (or similar) as your shell:
	17
	18	export CROSS_COMPILE=your-cross-compiler-prefix-
	19	make distclean
	20	make MPC8323ERDB_config
	21	make
	22
	23	3. Downloading and Flashing Images
	24
	25	3.1 Reflash U-boot Image using U-boot
	26
	27	N.b, have an alternate means of programming
	28	the flash available if the new u-boot doesn't boot.
	29
	30	First try a:
	31
	32	tftpboot $loadaddr $uboot
	33
	34	to make sure that the TFTP load will succeed before
	35	an erase goes ahead and wipes out your current firmware.
	36	Then do a:
	37
	38	run tftpflash
	39
	40	which is a shorter version of the manual sequence:
	41
	42	tftp $loadaddr u-boot.bin
	43	protect off fe000000 +$filesize
	44	erase fe000000 +$filesize
	45	cp.b $loadaddr fe000000 $filesize
	46
	47	To keep your old u-boot's environment variables, do a:
	48
	49	saveenv
	50
	51	prior to resetting the board.
	52
	53	3.2 Downloading and Booting Linux Kernel
	54
	55	Ensure that all networking-related environment variables are set
	56	properly (including ipaddr, serverip, gatewayip (if needed),
	57	netmask, ethaddr, eth1addr, rootpath (if using NFS root),
	58	fdtfile, and bootfile).
	59
	60	Then, do one of the following, depending on whether you
	61	want an NFS root or a ramdisk root:
	62
	63	run nfsboot
	64
65	or
66
67	run ramboot
68
69	4 Notes
70
71	The console baudrate for MPC8323ERDB is 115200bps.