Eric Lee / smarc-ti-linux-kernel | Embedian Git Server

Commit 58b0e22ab68d055a9563835daef10fbc9fe8f5ae

Authored by Michael Hennerich 2010-07-06 21:01:06 +0800

Committed by Mike Frysinger 2010-08-07 00:55:52 +0800

Blackfin: remove useless and outdated documentation

The filesystem and cache files duplicate existing & better documents, and
these contain outdated information.  So punt them.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Showing 3 changed files with 0 additions and 230 deletions Side-by-side Diff

Documentation/blackfin/00-INDEX
Documentation/blackfin/Filesystems
Documentation/blackfin/cachefeatures.txt

Documentation/blackfin/00-INDEX

Diff comments View file @ 58b0e22

1	1	00-INDEX
2	2	- This file
3	3
4		-cachefeatures.txt
5		- - Supported cache features.
6		-
7		-Filesystems
8		- - Requirements for mounting the root file system.
9		-
10	4	bfin-gpio-note.txt
11	5	- Notes in developing/using bfin-gpio driver.

Documentation/blackfin/Filesystems

View file @ 58b0e22

1		-/*
2		- * File: Documentation/blackfin/Filesystems
3		- * Based on:
4		- * Author:
5		- *
6		- * Created:
7		- * Description: This file contains the simple DMA Implementation for Blackfin
8		- *
9		- * Rev: $Id: Filesystems 2384 2006-11-01 04:12:43Z magicyang $
10		- *
11		- * Modified:
12		- * Copyright 2004-2006 Analog Devices Inc.
13		- *
14		- * Bugs: Enter bugs at http://blackfin.uclinux.org/
15		- *
16		- */
17		-
18		- How to mount the root file system in uClinux/Blackfin
19		- -----------------------------------------------------
20		-
21		-1 Mounting EXT3 File system.
22		- ------------------------
23		-
24		- Creating an EXT3 File system for uClinux/Blackfin:
25		-
26		-
27		-Please follow the steps to form the EXT3 File system and mount the same as root
28		-file system.
29		-
30		-a Make an ext3 file system as large as you want the final root file
31		- system.
32		-
33		- mkfs.ext3 /dev/ram0 <your-rootfs-size-in-1k-blocks>
34		-
35		-b Mount this Empty file system on a free directory as:
36		-
37		- mount -t ext3 /dev/ram0 ./test
38		- where ./test is the empty directory.
39		-
40		-c Copy your root fs directory that you have so carefully made over.
41		-
42		- cp -af /tmp/my_final_rootfs_files/* ./test
43		-
44		- (For ex: cp -af uClinux-dist/romfs/* ./test)
45		-
46		-d If you have done everything right till now you should be able to see
47		- the required "root" dir's (that's etc, root, bin, lib, sbin...)
48		-
49		-e Now unmount the file system
50		-
51		- umount ./test
52		-
53		-f Create the root file system image.
54		-
55		- dd if=/dev/ram0 bs=1k count=<your-rootfs-size-in-1k-blocks> \
56		- > ext3fs.img
57		-
58		-
59		-Now you have to tell the kernel that will be mounting this file system as
60		-rootfs.
61		-So do a make menuconfig under kernel and select the Ext3 journaling file system
62		-support under File system --> submenu.
63		-
64		-
65		-2. Mounting EXT2 File system.
66		- -------------------------
67		-
68		-By default the ext2 file system image will be created if you invoke make from
69		-the top uClinux-dist directory.
70		-
71		-
72		-3. Mounting CRAMFS File System
73		- ----------------------------
74		-
75		-To create a CRAMFS file system image execute the command
76		-
77		- mkfs.cramfs ./test cramfs.img
78		-
79		- where ./test is the target directory.
80		-
81		-
82		-4. Mounting ROMFS File System
83		- --------------------------
84		-
85		-To create a ROMFS file system image execute the command
86		-
87		- genromfs -v -V "ROMdisk" -f romfs.img -d ./test
88		-
89		- where ./test is the target directory
90		-
91		-
92		-5. Mounting the JFFS2 Filesystem
93		- -----------------------------
94		-
95		-To create a compressed JFFS filesystem (JFFS2), please execute the command
96		-
97		- mkfs.jffs2 -d ./test -o jffs2.img
98		-
99		- where ./test is the target directory.
100		-
101		-However, please make sure the following is in your kernel config.
102		-
103		-/*
104		- * RAM/ROM/Flash chip drivers
105		- */
106		-#define CONFIG_MTD_CFI 1
107		-#define CONFIG_MTD_ROM 1
108		-/*
109		- * Mapping drivers for chip access
110		- */
111		-#define CONFIG_MTD_COMPLEX_MAPPINGS 1
112		-#define CONFIG_MTD_BF533 1
113		-#undef CONFIG_MTD_UCLINUX
114		-
115		-Through the u-boot boot loader, use the jffs2.img in the corresponding
116		-partition made in linux-2.6.x/drivers/mtd/maps/bf533_flash.c.
117		-
118		-NOTE - Currently the Flash driver is available only for EZKIT. Watch out for a
119		- STAMP driver soon.
120		-
121		-
122		-6. Mounting the NFS File system
123		- -----------------------------
124		-
125		- For mounting the NFS please do the following in the kernel config.
126		-
127		- In Networking Support --> Networking options --> TCP/IP networking -->
128		- IP: kernel level autoconfiguration
129		-
130		- Enable BOOTP Support.
131		-
132		- In Kernel hacking --> Compiled-in kernel boot parameter add the following
133		-
134		- root=/dev/nfs rw ip=bootp
135		-
136		- In File system --> Network File system, Enable
137		-
138		- NFS file system support --> NFSv3 client support
139		- Root File system on NFS
140		-
141		- in uClibc menuconfig, do the following
142		- In Networking Support
143		- enable Remote Procedure Call (RPC) support
144		- Full RPC Support
145		-
146		- On the Host side, ensure that /etc/dhcpd.conf looks something like this
147		-
148		- ddns-update-style ad-hoc;
149		- allow bootp;
150		- subnet 10.100.4.0 netmask 255.255.255.0 {
151		- default-lease-time 122209600;
152		- max-lease-time 31557600;
153		- group {
154		- host bf533 {
155		- hardware ethernet 00:CF:52:49:C3:01;
156		- fixed-address 10.100.4.50;
157		- option root-path "/home/nfsmount";
158		- }
159		- }
160		-
161		- ensure that /etc/exports looks something like this
162		- /home/nfsmount *(rw,no_root_squash,no_all_squash)
163		-
164		- run the following commands as root (may differ depending on your
165		- distribution) :
166		- - service nfs start
167		- - service portmap start
168		- - service dhcpd start
169		- - /usr/sbin/exportfs

Documentation/blackfin/cachefeatures.txt

View file @ 58b0e22

1		-/*
2		- * File: Documentation/blackfin/cachefeatures.txt
3		- * Based on:
4		- * Author:
5		- *
6		- * Created:
7		- * Description: This file contains the simple DMA Implementation for Blackfin
8		- *
9		- * Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
10		- *
11		- * Modified:
12		- * Copyright 2004-2006 Analog Devices Inc.
13		- *
14		- * Bugs: Enter bugs at http://blackfin.uclinux.org/
15		- *
16		- */
17		-
18		- - Instruction and Data cache initialization.
19		- icache_init();
20		- dcache_init();
21		-
22		- - Instruction and Data cache Invalidation Routines, when flushing the
23		- same is not required.
24		- _icache_invalidate();
25		- _dcache_invalidate();
26		-
27		- Also, for invalidating the entire instruction and data cache, the below
28		- routines are provided (another method for invalidation, refer page no 267 and 287 of
29		- ADSP-BF533 Hardware Reference manual)
30		-
31		- invalidate_entire_dcache();
32		- invalidate_entire_icache();
33		-
34		- -External Flushing of Instruction and data cache routines.
35		-
36		- flush_instruction_cache();
37		- flush_data_cache();
38		-
39		- - Internal Flushing of Instruction and Data Cache.
40		-
41		- icplb_flush();
42		- dcplb_flush();
43		-
44		- - Miscellaneous cache functions.
45		-
46		- flush_cache_all();
47		- flush_cache_mm();
48		- invalidate_dcache_range();
49		- flush_dcache_range();
50		- flush_dcache_page();
51		- flush_cache_range();
52		- flush_cache_page();
53		- invalidate_dcache_range();
54		- flush_page_to_ram();