From 96b8a05432f346f36493535c85320b70ec9c7c1b Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 16 Apr 2007 14:54:15 -0500 Subject: mpc83xx: Add MPC8313ERDB support. Signed-off-by: Scott Wood --- doc/README.mpc8313erdb | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 doc/README.mpc8313erdb (limited to 'doc') diff --git a/doc/README.mpc8313erdb b/doc/README.mpc8313erdb new file mode 100644 index 0000000..7ad4cc7 --- /dev/null +++ b/doc/README.mpc8313erdb @@ -0,0 +1,83 @@ +Freescale MPC8313ERDB Board +----------------------------------------- + +1. Board Switches and Jumpers + + SW3 is used to set CFG_RESET_SOURCE. + + To boot the image at 0xFE000000 in NOR flash, use these DIP + switche settings for SW3 SW4: + + +------+ +------+ + | | | **** | + | **** | | | + +------+ ON +------+ ON + 4321 4321 + (where the '*' indicates the position of the tab of the switch.) + +2. Memory Map + The memory map looks like this: + + 0x0000_0000 0x07ff_ffff DDR 128M + 0x8000_0000 0x8fff_ffff PCI MEM 256M + 0x9000_0000 0x9fff_ffff PCI_MMIO 256M + 0xe000_0000 0xe00f_ffff IMMR 1M + 0xe200_0000 0xe20f_ffff PCI IO 16M + 0xe280_0000 0xe280_7fff NAND FLASH (CS1) 32K + 0xf000_0000 0xf001_ffff VSC7385 (CS2) 128K + 0xfa00_0000 0xfa00_7fff Board Status/ 32K + LED Control (CS3) + 0xfe00_0000 0xfe7f_ffff NOR FLASH (CS0) 8M + +3. Definitions + +3.1 Explanation of NEW definitions in: + + include/configs/MPC8313ERDB.h + + CONFIG_MPC83xx MPC83xx family + CONFIG_MPC831x MPC831x specific + CONFIG_MPC8313ERDB MPC8313ERDB board specific + +4. Compilation + + Assuming you're using BASH (or similar) as your shell: + + export CROSS_COMPILE=your-cross-compiler-prefix- + make distclean + make MPC8313ERDB_33_config + (or make MPC8313ERDB_66_config, depending on the speed of + the oscillator on your board) + make + +5. Downloading and Flashing Images + +5.1 Reflash U-boot Image using U-boot + + =>run tftpflash + + You may want to try + =>tftpboot $loadaddr $uboot + first, to make sure that the TFTP load will succeed before it + goes ahead and wipes out your current firmware. And of course, + have an alternate means of programming the flash available + if the new u-boot doesn't boot. + +5.2 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 + +6 Notes + + Booting from NAND flash is not yet supported. + The console baudrate for MPC8313ERDB is 115200bps. -- cgit v1.1