From 702e6014f15b307f144fa03ecaf83a8446c6802a Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Sun, 29 Apr 2012 23:57:39 +0000 Subject: doc: cleanup - move board READMEs into respective board directories Also drop a few files referring to no longer / not yet supported boards. Signed-off-by: Wolfgang Denk Cc: Prafulla Wadaskar Cc: Stefan Roese Cc: Kim Phillips Cc: Andy Fleming Cc: Jason Jin Cc: Stefano Babic Cc: Daniel Schwierzeck Acked-by: Stefano Babic Acked-by: Daniel Schwierzeck --- board/cmi/README | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 board/cmi/README (limited to 'board/cmi') diff --git a/board/cmi/README b/board/cmi/README new file mode 100644 index 0000000000..0edd50ad22 --- /dev/null +++ b/board/cmi/README @@ -0,0 +1,84 @@ + +Summary: +======== + +This file contains information about the cmi board configuration. +Please see cmi_mpc5xx_config for further details. The cmi board is +a customer specific board but should work with small modifications +on every board which has a MPC5xx and either a 28F128J3A, +28F320J3A or 28F640J3A Intel flash mounted. + +Board Discription: +================== + +* Motorola MPC555 +* RS232 connection +* Intel flash 28F640J3A +* Micron SRAM 1M +* Altera PLD + +Bootstrap: +========== + +In contrast to the usual boot sequence used in U-Boot, on the +cmi board we don't boot from the external flash directly. +Because of we use a 16-bit flash and don't sample a RCW +from the data bus to set the startup buswidth to 16-bit. +Unfortunatly the default width, sampled from the default RCW +is 32-bit. For this reason we burn the proper RCW into the +internal flash shadow location and boot after power-on or +reset from the internal flash and then branch to 0x02000100 +where the U-Boot reset vector handler is located. + +Memory Map: +=========== + +Memory Map after relocation: + + 0x0000 0000 CONFIG_SYS_SDRAM_BASE + : + 0x000F 9FFF + : + : + 0x0100 0000 CONFIG_SYS_IMMR (Internal memory map base adress) + : + 0x0130 7FFF + : + : + 0x0200 0000 CONFIG_SYS_FLASH_BASE + : + 0x027C FFFF + : + : + 0x0300 0000 PLD_BASE + +Flash Partition: + + 0x0200 0000 Block 0 and 1 contain U-Boot except + : environment + : + 0x0201 FFFF + 0x0202 0000 Block 2 contains environment (.ppcenv) + : + 0x0202 FFFF + +See README file for futher information about U-Boot relocation +and partitioning. + +Tested Features: +================ + +* U-Boot commands: go, loads, loadb, all memory features, printenv, + setenv, saveenv, protect, erase, fli, bdi, mtest, reset, version, + coninfo, help (see configuration file for available commands) + +* Blinking led to indicate boot process + +Added or Changed Files: +======================= + +u-boot-0.2.0/board/cmi/* +u-boot-0.2.0/include/configs/cmi_mpc5xx.h + +Regards, +Martin -- cgit v1.2.1