mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-10 05:13:31 +00:00
53677ef18e
This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
104 lines
3 KiB
Text
104 lines
3 KiB
Text
Freescale MPC837xEMDS Board
|
|
-----------------------------------------
|
|
1. Board Switches and Jumpers
|
|
1.0 There are four Dual-In-Line Packages(DIP) Switches on MPC837xEMDS board
|
|
For some reason, the HW designers describe the switch settings
|
|
in terms of 0 and 1, and then map that to physical switches where
|
|
the label "On" refers to logic 0 and "Off" is logic 1.
|
|
|
|
Switch bits are numbered 1 through, like, 4 6 8 or 10, but the
|
|
bits may contribute to signals that are numbered based at 0,
|
|
and some of those signals may be high-bit-number-0 too. Heed
|
|
well the names and labels and do not get confused.
|
|
|
|
"Off" == 1
|
|
"On" == 0
|
|
|
|
SW4[8] is the bit labled 8 on Switch 4.
|
|
SW2[1:6] refers to bits labeled 1 through 6 in order on switch 2.
|
|
SW2[1:8]= 0000_0001 refers to bits labeled 1 through 7 is set as "On"
|
|
and bits labeled 8 is set as "Off".
|
|
|
|
1.1 For the MPC837xEMDS Processor Board
|
|
|
|
First, make sure the board default setting is consistent with the
|
|
document shipped with your board. Then apply the following setting:
|
|
SW3[1-8]= 0011_0000 (BOOTSEQ, ROMLOC setting)
|
|
SW4[1-8]= 0000_0110 (core PLL setting)
|
|
SW5[1-8]= 1001_1000 (system PLL, boot up from low end of flash)
|
|
SW6[1-8]= 0000_1000 (HRCW is read from NOR FLASH)
|
|
SW7[1-8]= 0110_1101 (TSEC1/2 interface setting - RGMII)
|
|
J3 2-3, TSEC1 LVDD1 with 2.5V
|
|
J6 2-3, TSEC2 LVDD2 with 2.5V
|
|
J9 2-3, CLKIN from osc on board
|
|
J10 removed, CS0 connect to NOR flash; when mounted, CS0 connect to NAND
|
|
J11 removed, Hardware Reset Configuration Word load from FLASH(NOR or NAND)
|
|
mounted, HRCW load from BCSR.
|
|
|
|
on board Oscillator: 66M
|
|
|
|
2. Memory Map
|
|
|
|
2.1. The memory map should look pretty much like this:
|
|
|
|
0x0000_0000 0x7fff_ffff DDR 2G
|
|
0x8000_0000 0x8fff_ffff PCI MEM prefetch 256M
|
|
0x9000_0000 0x9fff_ffff PCI MEM non-prefetch 256M
|
|
0xc000_0000 0xdfff_ffff Empty 512M
|
|
0xe000_0000 0xe00f_ffff Int Mem Reg Space 1M
|
|
0xe010_0000 0xe02f_ffff Empty 2M
|
|
0xe030_0000 0xe03f_ffff PCI IO 1M
|
|
0xe040_0000 0xe05f_ffff Empty 2M
|
|
0xe060_0000 0xe060_7fff NAND Flash 32K
|
|
0xf400_0000 0xf7ff_ffff Empty 64M
|
|
0xf800_0000 0xf800_7fff BCSR on CS1 32K
|
|
0xfe00_0000 0xffff_ffff NOR Flash on CS0 32M
|
|
|
|
3. Definitions
|
|
|
|
3.1 Explanation of NEW definitions in:
|
|
|
|
include/configs/MPC837XEMDS.h
|
|
|
|
CONFIG_MPC83XX MPC83xx family for both MPC837x and MPC8360
|
|
CONFIG_MPC837X MPC837x specific
|
|
CONFIG_MPC837XEMDS MPC837XEMDS board specific
|
|
|
|
4. Compilation
|
|
|
|
Assuming you're using BASH shell:
|
|
|
|
export CROSS_COMPILE=your-cross-compile-prefix
|
|
cd u-boot
|
|
make distclean
|
|
make MPC837XEMDS_config
|
|
make
|
|
|
|
5. Downloading and Flashing Images
|
|
|
|
5.0 Download over serial line using Kermit:
|
|
|
|
loadb
|
|
[Drop to kermit:
|
|
^\c
|
|
send <u-boot-bin-image>
|
|
c
|
|
]
|
|
|
|
|
|
Or via tftp:
|
|
|
|
tftp 40000 u-boot.bin
|
|
|
|
5.1 Reflash U-boot Image using U-boot
|
|
|
|
tftp 40000 u-boot.bin
|
|
protect off fe000000 fe1fffff
|
|
erase fe000000 fe1fffff
|
|
|
|
cp.b 40000 fe000000 xxxx
|
|
|
|
You have to supply the correct byte count with 'xxxx' from the TFTP result log.
|
|
|
|
6. Notes
|
|
1) The console baudrate for MPC837XEMDS is 115200bps.
|