+++ /dev/null
-/*
- * File: Documentation/blackfin/Filesystems
- * Based on:
- * Author:
- *
- * Created:
- * Description: This file contains the simple DMA Implementation for Blackfin
- *
- * Rev: $Id: Filesystems 2384 2006-11-01 04:12:43Z magicyang $
- *
- * Modified:
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- */
-
- How to mount the root file system in uClinux/Blackfin
- -----------------------------------------------------
-
-1 Mounting EXT3 File system.
- ------------------------
-
- Creating an EXT3 File system for uClinux/Blackfin:
-
-
-Please follow the steps to form the EXT3 File system and mount the same as root
-file system.
-
-a Make an ext3 file system as large as you want the final root file
- system.
-
- mkfs.ext3 /dev/ram0 <your-rootfs-size-in-1k-blocks>
-
-b Mount this Empty file system on a free directory as:
-
- mount -t ext3 /dev/ram0 ./test
- where ./test is the empty directory.
-
-c Copy your root fs directory that you have so carefully made over.
-
- cp -af /tmp/my_final_rootfs_files/* ./test
-
- (For ex: cp -af uClinux-dist/romfs/* ./test)
-
-d If you have done everything right till now you should be able to see
- the required "root" dir's (that's etc, root, bin, lib, sbin...)
-
-e Now unmount the file system
-
- umount ./test
-
-f Create the root file system image.
-
- dd if=/dev/ram0 bs=1k count=<your-rootfs-size-in-1k-blocks> \
- > ext3fs.img
-
-
-Now you have to tell the kernel that will be mounting this file system as
-rootfs.
-So do a make menuconfig under kernel and select the Ext3 journaling file system
-support under File system --> submenu.
-
-
-2. Mounting EXT2 File system.
- -------------------------
-
-By default the ext2 file system image will be created if you invoke make from
-the top uClinux-dist directory.
-
-
-3. Mounting CRAMFS File System
- ----------------------------
-
-To create a CRAMFS file system image execute the command
-
- mkfs.cramfs ./test cramfs.img
-
- where ./test is the target directory.
-
-
-4. Mounting ROMFS File System
- --------------------------
-
-To create a ROMFS file system image execute the command
-
- genromfs -v -V "ROMdisk" -f romfs.img -d ./test
-
- where ./test is the target directory
-
-
-5. Mounting the JFFS2 Filesystem
- -----------------------------
-
-To create a compressed JFFS filesystem (JFFS2), please execute the command
-
- mkfs.jffs2 -d ./test -o jffs2.img
-
- where ./test is the target directory.
-
-However, please make sure the following is in your kernel config.
-
-/*
- * RAM/ROM/Flash chip drivers
- */
-#define CONFIG_MTD_CFI 1
-#define CONFIG_MTD_ROM 1
-/*
- * Mapping drivers for chip access
- */
-#define CONFIG_MTD_COMPLEX_MAPPINGS 1
-#define CONFIG_MTD_BF533 1
-#undef CONFIG_MTD_UCLINUX
-
-Through the u-boot boot loader, use the jffs2.img in the corresponding
-partition made in linux-2.6.x/drivers/mtd/maps/bf533_flash.c.
-
-NOTE - Currently the Flash driver is available only for EZKIT. Watch out for a
- STAMP driver soon.
-
-
-6. Mounting the NFS File system
- -----------------------------
-
- For mounting the NFS please do the following in the kernel config.
-
- In Networking Support --> Networking options --> TCP/IP networking -->
- IP: kernel level autoconfiguration
-
- Enable BOOTP Support.
-
- In Kernel hacking --> Compiled-in kernel boot parameter add the following
-
- root=/dev/nfs rw ip=bootp
-
- In File system --> Network File system, Enable
-
- NFS file system support --> NFSv3 client support
- Root File system on NFS
-
- in uClibc menuconfig, do the following
- In Networking Support
- enable Remote Procedure Call (RPC) support
- Full RPC Support
-
- On the Host side, ensure that /etc/dhcpd.conf looks something like this
-
- ddns-update-style ad-hoc;
- allow bootp;
- subnet 10.100.4.0 netmask 255.255.255.0 {
- default-lease-time 122209600;
- max-lease-time 31557600;
- group {
- host bf533 {
- hardware ethernet 00:CF:52:49:C3:01;
- fixed-address 10.100.4.50;
- option root-path "/home/nfsmount";
- }
- }
-
- ensure that /etc/exports looks something like this
- /home/nfsmount *(rw,no_root_squash,no_all_squash)
-
- run the following commands as root (may differ depending on your
- distribution) :
- - service nfs start
- - service portmap start
- - service dhcpd start
- - /usr/sbin/exportfs
+++ /dev/null
-/*
- * File: Documentation/blackfin/cachefeatures.txt
- * Based on:
- * Author:
- *
- * Created:
- * Description: This file contains the simple DMA Implementation for Blackfin
- *
- * Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
- *
- * Modified:
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- */
-
- - Instruction and Data cache initialization.
- icache_init();
- dcache_init();
-
- - Instruction and Data cache Invalidation Routines, when flushing the
- same is not required.
- _icache_invalidate();
- _dcache_invalidate();
-
- Also, for invalidating the entire instruction and data cache, the below
- routines are provided (another method for invalidation, refer page no 267 and 287 of
- ADSP-BF533 Hardware Reference manual)
-
- invalidate_entire_dcache();
- invalidate_entire_icache();
-
- -External Flushing of Instruction and data cache routines.
-
- flush_instruction_cache();
- flush_data_cache();
-
- - Internal Flushing of Instruction and Data Cache.
-
- icplb_flush();
- dcplb_flush();
-
- - Miscellaneous cache functions.
-
- flush_cache_all();
- flush_cache_mm();
- invalidate_dcache_range();
- flush_dcache_range();
- flush_dcache_page();
- flush_cache_range();
- flush_cache_page();
- invalidate_dcache_range();
- flush_page_to_ram();
-
projects / deliverable / linux.git / commitdiff
