| f7f4f4dd6948e3bca0e04e5217c825052ad88f5a |
|
10-Dec-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
cramfs: take headers to fs/cramfs
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 24a70cf2b28e24aa31c4f9bc310cc274c0a90183 |
|
12-Sep-2013 |
Steven Miao <realmz6@gmail.com> |
blackfin: scb: Add system crossbar init code.
If SCB exists in select blackfin cpu, developer can change the SCB
priority in kernel configuration.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
|
| 13dff62d80e93f1cc65b4ad2dddedd12de720272 |
|
18-Jun-2013 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
blackfin: delete __cpuinit usage from all blackfin files
The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications. For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.
After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out. Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.
Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
are flagged as __cpuinit -- so if we remove the __cpuinit from
arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
content into no-ops as early as possible, since that will get rid
of these warnings. In any case, they are temporary and harmless.
This removes all the arch/blackfin uses of the __cpuinit macros from
all C files. Currently blackfin does not have any __CPUINIT used in
assembly files.
[1] https://lkml.org/lkml/2013/5/20/589
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Bob Liu <lliubbo@gmail.com>
Cc: Sonic Zhang <sonic.zhang@analog.com>
Cc: uclinux-dist-devel@blackfin.uclinux.org
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
| 352030530c4b6906a30a8d7dba13bfbf7fbdbdd1 |
|
24-Jul-2012 |
James Cosin <jkosin@intcomgrp.com> |
blackfin: fix bootup core clock and system clock display
From: James Cosin <jkosin@intcomgrp.com>
fixes the number of digits to 6 after the decimal point to regain the
significant 0s in the frequency after the decimal point.
Signed-off-by: Steven Miao <realmz6@gmail.com>
|
| 363737d66427c18edb321a06933ac999d9ce5d7f |
|
31-May-2012 |
Geert Uytterhoeven <geert@linux-m68k.org> |
mtd/uclinux: Use generic __bss_stop instead of _ebss
The standard (see BSS_SECTION() in <asm-generic/vmlinux.lds.h> and
<asm-generic/sections.h>) symbol for the end of BSS is __bss_stop.
This allows to remove all local declarations that have been added to
several architectures just to please CONFIG_MTD_UCLINUX.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Greg Ungerer <gerg@uclinux.org>
|
| 672552adb3197c5db3acc8800c7917bcff180461 |
|
16-May-2012 |
Steven Miao <realmz6@gmail.com> |
blackfin: fix build after add bf60x mach/pm.h
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| 8bf7135fff46f6ac28baf28a8e4144f685b456a0 |
|
15-May-2012 |
Sonic Zhang <sonic.zhang@analog.com> |
blackfin: bf60x: Rename the DDR controller macro
Rename the DDR controller macro from DDR0 to DMC0 to avoid confustion for
bf60x.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| 1d3dbda6ed0216971291a48531e7b2578ddf7642 |
|
17-May-2012 |
Sonic Zhang <sonic.zhang@analog.com> |
blackfin: bf60x: cleanup get clock code
Remove redundance code for get clock.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| 7c141c1c5c148419eef8972688e86e2e3115ea13 |
|
17-May-2012 |
Bob Liu <lliubbo@gmail.com> |
blackfin: bf60x: make clock changeable in kernel menuconfig
Add clock changeable support in kernel menuconfig for bf60x.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| 592b8785b966ef2841e34a7691026d3aec1ce382 |
|
01-May-2012 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: fix unused clk var warning
This is only used on BF60x code (so this patch should get squashed into
the original one that added it).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| b5affb0147cee0ea05d909396f8e389092729236 |
|
16-May-2012 |
Bob Liu <lliubbo@gmail.com> |
blackfin: add bf60x to current framework
This patch added bf60x to current blackfin kernel framework.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| 39429c5e4a2c56a39c9a1c9bdad54431c63104b0 |
|
23-Mar-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
new helper: ext2_image_size()
... implemented that way since the next commit will leave it
almost alone in ext2_fs.h - most of the file (including
struct ext2_super_block) is going to move to fs/ext2/ext2.h.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
| 3bed8d67469cc7129b0babc0211c32fa68408ce0 |
|
13-Mar-2012 |
David Howells <dhowells@redhat.com> |
Disintegrate asm/system.h for Blackfin [ver #2]
Disintegrate asm/system.h for Blackfin.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: uclinux-dist-devel@blackfin.uclinux.org
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| 4dbeccdf7b7573e90b442b6bd896c10c1608e72d |
|
30-Nov-2011 |
Steven Miao <realmz6@gmail.com> |
bf54x: get mem size: missing break in switch
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
|
| fb1d9be5967fff0a3c93b06304fd992e3c438b7f |
|
30-May-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: optimize double fault boot checking
This moves the double fault data used at boot time into a single struct
which can then easily be addressed with indexed loads rather than having
to explicitly load multiple addresses.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| fecedc807116ed820ca6f3138d6d47a3bc6c5a60 |
|
26-Apr-2011 |
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> |
Blackfin: convert old cpumask API to new one
old cpu_xxx() APIs is planned to removed later. then, converted.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 00b5c50e47dacd4d288c6b265e00f85711b9ac64 |
|
19-Apr-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: optimize MMR reads during startup a bit
Since the value of these MMRs aren't changing, store the value in a local
variable and work off of that. This avoids multiple MMR reads which are
implicitly forced by the volatile markings.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 6327a574f9ce85f0daab8693913003a456f27f1f |
|
15-Apr-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: move internal irq prototypes out of global namespace
These are only used in a few internal Blackfin places, so move the irq
prototypes out of the global header and into the internal irq one. No
functional changes other than shuffling locales.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 3086fd2768fd9276b309722c8f935301e14e8c17 |
|
14-Apr-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: bf51x/bf52x: fix typo in hysteresis MMR names
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 2951acba8510a37c6b56f8481906a809c5eb3b0e |
|
14-Apr-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: SMP: drop unused blackfin_cpudata.idle pointer
Not sure when we stopped using this field, but nothing in the tree uses
this now, so punt it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 44491fbc5a228f3c2e61d842fd9fee0bfb839373 |
|
14-Apr-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: SMP: fix cpudata cache setup
After some cache setup reordering changesets, the blackfin_cpudata init
was left behind. While cpu0's data was correct, cpu1's data was not.
Not that big of a deal as these are only used in the cpuinfo output, but
should still be fixed. So move the setup of these fields to the common
cache setup function to avoid this happening again in the future.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 8d011f70b08f563b007743fd446a6022f0329cd4 |
|
13-Apr-2011 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: clean up /proc/cpuinfo output
The smp flush lines are too long and have too many newlines, so scale
them back to match the other lines.
The %p modifier shows "(null)" for 0, so use %08x instead.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| c6345ab1a3d17f4b6c80ac79d7fb0f006b32fdaa |
|
05-Aug-2010 |
Sonic Zhang <sonic.zhang@analog.com> |
Blackfin: SMP: work around anomaly 05000491
In order to safely work around anomaly 05000491, we have to execute IFLUSH
from L1 instruction sram. The trouble with multi-core systems is that all
L1 sram is visible only to the active core. So we can't just place the
functions into L1 and call it directly. We need to setup a jump table and
place the entry point in external memory. This will call the right func
based on the active core.
In the process, convert from the manual relocation of a small bit of code
into Core B's L1 to the more general framework we already have in place
for loading arbitrary pieces of code into L1.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 7a4a207e74d6aeb63a38e9a3f0cfc40223d5c40e |
|
05-Jul-2010 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin: BF51x/BF52x: support GPIO Hysteresis/Schmitt Trigger options
Newer parts have optional Hysteresis/Schmitt Trigger options to help with
dirty signals. So add some kconfig options for tuning this and enable it
by default for people.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| be1577e3787536290cc17afaeb2cd58bbcc7ed6c |
|
10-May-2010 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: another year of changes (update copyright in boot log)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 718340f62900ed44046d2b0f74d0dec7cf844194 |
|
01-Feb-2010 |
Graf Yang <graf.yang@analog.com> |
Blackfin: rewrite resync_core_{i,d}cache() SMP logic to avoid per_cpu data
This functions are implicitly called by core functions like cpu_relax(),
and since those functions may be called early on before common code has
initialized the per-cpu data area, we need to tweak the stats gathering.
Now the statistics are maintained in common bss which makes these funcs
safe to use as soon as the C runtime env is setup.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| d86bfb1600db38e8387beee0aaab4263cfd728a2 |
|
07-Jan-2010 |
Barry Song <barry.song@analog.com> |
Blackfin: initial XIP support
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 6feda3a6530204ad73a2dc1713c051462a1d9c49 |
|
05-Jan-2010 |
Barry Song <barry.song@analog.com> |
Blackfin: replace harcoded define with proper THREAD_SIZE macro
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| e18e7dd33454f277b9438af66d25984362278021 |
|
07-Dec-2009 |
Barry Song <barry.song@analog.com> |
Blackfin: fix MPU page permission masks overflow when dealing with async memory
Attempting to use the MPU while doing XIP out of parallel flash hooked up
to the async memory bus would often result in random crashes as the MPU
slowly corrupted memory.
The fallout here is that the async banks gain MPU protection from user
space too. So any accesses have to go through the mmap() interface rather
than just using hardcoded pointers.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| b635f1912da764c960c044ffd58ba27157aa2c85 |
|
23-Sep-2009 |
Sonic Zhang <sonic.zhang@analog.com> |
Blackfin: allow boards to register early devices
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| d45e8db1b20c510a189d769d877af2e8e9df985f |
|
27-Nov-2009 |
Barry Song <barry.song@analog.com> |
Blackfin: drop 4KB reserve at end of memory
The point of this small chunk was to avoid anomaly 05000310. This never
really seemed to do what it was intended though -- no valid CPLBs exist
over the reserved memory, and there is often memory before it anyways (due
to the uClinux MTD and/or reserved DMA region). Plus, it doesn't address
the L1 instruction case.
So drop this chunk as it wastes memory and is affront to humanity.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 7a1a8cc1902af3a2a19636da3674008b2f1246db |
|
20-Oct-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: announce current cpu rev when booting
User reports rarely include full information, so include this important
tidbit up front. It's also good to know at a glance in general.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 5cd82a6d58cb14c3a5d08ed171229de7adc3deac |
|
23-Sep-2009 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: calculate on-chip lengths at link time rather than run time
Since the link sizes never change at runtime, push the calculation out to
the linker script to save some useless calculation costs.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 96f1050d3df105c9ae6c6ac224f370199ea82fcd |
|
24-Sep-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: mass clean up of copyright/licensing info
Bill Gatliff & David Brownell pointed out we were missing some
copyrights, and licensing terms in some of the files in
./arch/blackfin, so this fixes things, and cleans them up.
It also removes:
- verbose GPL text(refer to the top level ./COPYING file)
- file names (you are looking at the file)
- bug url (it's in the ./MAINTAINERS file)
- "or later" on GPL-2, when we did not have that right
It also allows some Blackfin-specific assembly files to be under a BSD
like license (for people to use them outside of Linux).
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 05d17dfaab6671def3fcdcd95c39fd49924dbb3b |
|
21-Aug-2009 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin: fix spelling in a few comments
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 3aa670419a02b19a2168894f7edbb5e4b9e4e607 |
|
14-Aug-2009 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: punt dead cache locking code
No one uses these functions, and some are duplicate of existing C code. So
just punt the whole thing.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 837ec2d56c41640d1f1238e52c350b2a516d29ba |
|
07-Jul-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: catch hardware errors earlier during booting
Allow hardware errors to be caught during early portions of booting, and
leave something in the shadow console that people can use to debug their
system with (to be printed out by the bootloader on next reset).
This enables the hardare error interrupts in head.S, allowing us to find
hardware errors when they happen (well, as much as you can with a hardware
error) and prints out the trace if it is enabled. This will catch errors
(like booting the wrong image on a 533) which previously resulted in a
infinite loop/hang, as well as random hardware errors before before
setup_arch().
To disable this debug only feature - turn off EARLY_PRINTK.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 3f871feaf3390c6d6e578818f867917c2e4738a2 |
|
06-Jul-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: add an early shadow console
Add a memory based shadow console to keep a copy of the printk buffer in a
location which can be found externally. This allows bootloaders to locate
and utilize the log buffer in case of silent (early/resume/etc...) crashes.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 2f812c0bd5ee1d9c145fb1c3523ecdf45e05f8ce |
|
26-Jun-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: clean up early memory setup code
Remove code duplication, and only print out memory warnings when they are
an actual problem.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| c70c754ff916cedd969a73549799d2167ffefcd6 |
|
09-Jul-2009 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin: drop per-cpu loops_per_jiffy tracking
On Blackfin SMP, a per-cpu loops_per_jiffy is pointless since both cores
always run at the same CCLK. In addition, the current implementation has
flaws since the main consumer for loops_per_jiffy (asm/delay.h) uses the
global kernel loops_per_jiffy and not the per_cpu one. So punt all of the
per-cpu handling and go back to the global shared one.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 3a920accbb5f88d753ab5a6a47d0dd48b6269f84 |
|
06-Jul-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: drop duplicate runtime checking of anomaly 05000448
We already catch this anomaly at compile time, and the runtime version is
such that it ends up checking on all parts rather than just the ones that
might actually have it.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| dc437b1b596e310bb583de3868c3d61a6798c81c |
|
26-Jun-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: fix silent crash when no uClinux MTD filesystem exists
Since we need to relocate the attached filesystem with the uClinux MTD map
(to handle some anomalies), we need to know its real filesize. If we boot
a kernel without a filesystem actually attached, we end up blindly reading
and copying garbage (since there is no magic value to detect validity).
Often times this results in an early crash and no output. So add a few
basic sanity checks before operating on things to catch the majority of
cases.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| b2dc0a08845af9d6ea990a1a28d4545998707570 |
|
20-Jun-2009 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: drop dead flash_probe call
There are no CONFIG_{BLK,CHR}_DEV_FLASH Kconfig options, and there is no
flash_probe() function, so not really sure what this code is all about.
Seems to be dead code that stretches way back to the start of the Blackfin
port.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| ad361c9884e809340f6daca80d56a9e9c871690a |
|
06-Jul-2009 |
Joe Perches <joe@perches.com> |
Remove multiple KERN_ prefixes from printk formats
Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up
handling of log-levels and newlines") changed printk semantics. printk
lines with multiple KERN_<level> prefixes are no longer emitted as
before the patch.
<level> is now included in the output on each additional use.
Remove all uses of multiple KERN_<level>s in formats.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| bd854c077e660b5f44b5049219645042bcba61ac |
|
19-Jun-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: fix early crash when booting on wrong cpu
Make sure we process the kernel command line before poking the hardware,
so that we can process early printk. This helps ensure that if you boot
a kernel configured for a different processor, something will be left in
the log buffer.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 41ba653f24a39a0e6a4afe9b2763a95a57e042c2 |
|
16-Jun-2009 |
Jie Zhang <jie.zhang@analog.com> |
Blackfin: decouple unrelated cache settings to get exact behavior
The current cache options don't really represent the hardware features.
They end up setting different aspects of the hardware so that the end
result is to turn on/off the cache. Unfortunately, when we hit cache
problems with the hardware, it's difficult to test different settings to
root cause the problem. The current settings also don't cleanly allow for
different caching behaviors with different regions of memory.
So split the configure options such that they properly reflect the settings
that are applied to the hardware.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 0de4adfb8c9674fa1572b0ff1371acc94b0be901 |
|
15-Jun-2009 |
Sonic Zhang <sonic.zhang@analog.com> |
Blackfin: fix accidental reset in some boot modes
We read the SWRST (Software Reset) register to get at the last reset
state, and then we may configure the DOUBLE_FAULT bit to control behavior
when a double fault occurs. But if the lower bits of the register is
already set (like UART boot mode on a BF54x), we inadvertently make the
system reset by writing to the SYSTEM_RESET field at the same time. So
make sure the lower 4 bits are always cleared.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 47e9dedb720364e0adff0e99960fa294c6161f71 |
|
10-Jun-2009 |
Sonic Zhang <sonic.zhang@analog.com> |
Blackfin: add blackfin_invalidate_entire_icache for SMP systems
The KGDB code uses this when switching processors to make sure the icache
is in a valid state.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 2466ac65560ee8b7506eea3987aba9519355fd02 |
|
08-Jun-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: include the cpu compiled version in /proc/cpuinfo
Since the compiled-for cpu revision can be significant, include it in the
cpuinfo output along side the cpu revision we're currently running on.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 79df1b69471b5ea4be8285c9dc6ab05cdf5a85d7 |
|
27-May-2009 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: override default uClinux MTD addr/size
Due to a processor anomaly (05000263 to be exact), most Blackfin parts
cannot keep the embedded filesystem image directly after the kernel in
RAM. Instead, the filesystem needs to be relocated to the end of memory.
As such, we need to tweak the map addr/size during boot for Blackfin
systems.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 7f3aee3c187641ec7c7e260d9cabb71ac4ac9f7c |
|
07-May-2009 |
Sonic Zhang <sonic.zhang@analog.com> |
Blackfin: detect anomaly 05000274
Detect and reject operating conditions for anomaly 05000274 since the
problem cannot be worked around in software.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| d8804adf52f5991388fa9af77428e4cc7768059d |
|
29-Apr-2009 |
Mike Frysinger <vapier@gentoo.org> |
Blackfin: do not append newlines to panic() messages
The panic() function already handles newlines for us.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| fecbd7366bf5a39eaae2c03541f0b412f319534f |
|
23-Apr-2009 |
Robin Getz <robin.getz@analog.com> |
Blackfin: fix early L1 relocation crash
Our early L1 relocate code may implicitly call code which lives in L1
memory. This is due to the dma_memcpy() rewrite that made the DMA code
lockless and safe to be used by multiple processes. If we start the
early DMA memcpy to relocate things into L1 instruction but then our
DMA memcpy code calls a function that lives in L1, things fall apart.
As such, create a small dedicated DMA memcpy routine that we can assume
sanity at boot time.
Reported-by: Filip Van Rillaer <filip.vanrillaer@oneaccess-net.com>
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
| 27276ba21fe590edc43305f483565aa02010bbbb |
|
05-Mar-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: remove spurious dash when dcache is off
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 00049522425e8390d1815e1579733644ad2bb0c7 |
|
05-Mar-2009 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: Random read/write errors are a bad thing
Random read/write errors are a bad thing - so don't let anyone
(including the test bench) run on something we know is bad.
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 972de7d9292439c9429c301cf377fbf56b6e654e |
|
04-Feb-2009 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin arch: Update Copyright information
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| af4c7d4b4eddc297bbb516abdd6154bffc8e05e5 |
|
04-Feb-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: define bfin_memmap as static since it is only used here
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| ed1fb6048c3eef68df5fe19e9022fdad6e53357d |
|
04-Feb-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: read SYSCR on newer parts that mirror the bits of SWRST in it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 76e8fe4da652b020e08089415c684a365bb5b6a9 |
|
04-Feb-2009 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: Print out where the bootmode is coming from (for easier debugging).
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| e32f55d9dbffd2ca16e0bb4ea7156b56741b78cd |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: rewrite get_sclk()/get_vco()
rewrite get_sclk()/get_vco() based on the assumption sclk/vco never
changes (since today it cannot)
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| dbdf20db537a5369c65330f878ad4905020a8bfa |
|
07-Jan-2009 |
Bernd Schmidt <bernds_cb1@t-online.de> |
Blackfin arch: Faster C implementation of no-MPU CPLB handler
This is a mixture ofcMichael McTernan's patch and the existing cplb-mpu code.
We ditch the old cplb-nompu implementation, which is a good example of
why a good algorithm in a HLL is preferrable to a bad algorithm written in
assembly. Rather than try to construct a table of all posible CPLBs and
search it, we just create a (smaller) table of memory regions and
their attributes. Some of the data structures are now unified for both
the mpu and nompu cases. A lot of needless complexity in cplbinit.c is
removed.
Further optimizations:
* compile cplbmgr.c with a lot of -ffixed-reg options, and omit saving
these registers on the stack when entering a CPLB exception.
* lose cli/nop/nop/sti sequences for some workarounds - these don't
* make
sense in an exception context
Additional code unification should be possible after this.
[Mike Frysinger <vapier.adi@gmail.com>:
- convert CPP if statements to C if statements
- remove redundant statements
- use a do...while loop rather than a for loop to get slightly better
optimization and to avoid gcc "may be used uninitialized" warnings ...
we know that the [id]cplb_nr_bounds variables will never be 0, so this
is OK
- the no-mpu code was the last user of MAX_MEM_SIZE and with that rewritten,
we can punt it
- add some BUG_ON() checks to make sure we dont overflow the small
cplb_bounds array
- add i/d cplb entries for the bootrom because there is functions/data in
there we want to access
- we do not need a NULL trailing entry as any time we access the bounds
arrays, we use the nr_bounds variable
]
Signed-off-by: Michael McTernan <mmcternan@airvana.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 7419a327f6264bef869b195497aaf03b72ca17b7 |
|
07-Jan-2009 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: panic when running on a chip rev below what we are compiled for
If we are running on a chip revision below what we are compiled for,
there will be missing anomaly workarounds, and a panic is inevitable. Do
is sooner, rather than later, so people don't look for bugs that already
have workarounds (that they turned off).
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 508808cda6c39819f51b58e95ba5c6222acea222 |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: do not allow people to pass in a diff clkin_hz value
do not allow people to pass in a diff clkin_hz value when
reprogramming clocks -- it is too late currently
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 7f1e2f98bd29f51edd64e0c15b10d9a18a7af4e1 |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: allow clkin_hz to be specified on the command line
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 275123e8ab59ee6379dcccbd05c5fcc418801b64 |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: show_cpuinfo - consolidate ugly casts
rather than use *(unsigned int *)v everywhere, do this once with a local
cpu_num variable
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 259fea42e66e62226c310a6646049b99912af7cc |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: include linux/mm.h since we use PAGE_ALIGN and such
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| dd3dd384df7f9f77fba6875a606e5a663510cd1d |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: rewrite dma_memcpy() and dma in/out functions
- unify all dma in/out functions (takes ~35 lines of code now)
- unify dma_memcpy with dma in/out functions (1 place that touches MDMA0
registers)
- add support for 32bit transfers
- cleanup dma_memcpy code to be much more readable
- irqs are disabled only while programming MDMA registers rather than
the entire transaction
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 1ea9925553caad6ea5068b4652596f149e0be9c3 |
|
07-Jan-2009 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: delete now unused "cclk" member of blackfin_cpudata
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| a5f0717e51c5fe6cdaf885b7f621ba48ae745bfb |
|
18-Nov-2008 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin arch: Fix bug - change cpufreq doesn't take effect on bf537 now
CCLK is variable: get current CCLK in show_cpuinfo
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 8f65873e47784a390949f0d61e5692dbf2a8253e |
|
18-Nov-2008 |
Graf Yang <graf.yang@analog.com> |
Blackfin arch: SMP supporting patchset: Blackfin kernel and memory management code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to Blackfin kernel and memory management code
Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| da986b9ffff79224417b69cf43506192bd9c29dc |
|
28-Oct-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: dont warn when running a kernel on the oldest supported silicon
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 3b1f26a50a2bfbd2825345b49b1d7f78432a7a4c |
|
27-Oct-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: don't copy bss when copying L1
when copying L1 regions, go to the start of bss rather
than end since we have code to zero it out already
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 58c35bd31f8b577e03d904c214b55b3d91369a85 |
|
13-Oct-2008 |
Vitja Makarov <vitja.makarov@gmail.com> |
Blackfin arch: introducing bfin_addr_dcachable
This patch introduces bfin_addr_dcachable() predicate, that simply tests is
address in cachable region or not.
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 3094c981f2d567f0a442687ced24a5340aa10b6c |
|
10-Oct-2008 |
Bryan Wu <cooloney@kernel.org> |
Blackfin arch: fix a typo in comments
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| e482cad241c0b7108cbc94959307a73d19ba17d5 |
|
10-Oct-2008 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: print out error/warning if you are running on the incorrect CPU type
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 0c0497c257c12c9ecb8825490a339bfce8a0532f |
|
09-Oct-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: Move all the silicon rev handling to one place
Move all the silicon rev handling to one place (Kconfig) and
make sure we warn if you are running on silicon that has not been tested on
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 55f2feae3a1e075d9b4b0e73a6024f3e25717878 |
|
09-Oct-2008 |
Graf Yang <graf.yang@analog.com> |
Blackfin arch: correct icache size in show_cpuinfo(), let c_start() return proper pointer
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 5b04f271fe49bb7adb061de454d383c027a18de0 |
|
08-Oct-2008 |
Graf Yang <graf.yang@analog.com> |
Blackfin arch: Modify some funtion names to more genernal ones
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 0c7a6b2135c1bcb5139ca9ca87f292caafcb9410 |
|
08-Oct-2008 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: add supporting for double fault debug handling
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| c991dd92ab150c0b4ba531105aad5612bb0dafba |
|
14-Aug-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: use %pF when printing out the double fault address so we get symbol names
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| cd8fb8df1458df7f3b99fd112e722b05f42c64d9 |
|
14-Aug-2008 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: Print out doublefault addresses, so debug can occur
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 0e06b50dda5965e0f8a15b0be14b759ead54fd2a |
|
14-Aug-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: cleanup cache lock code
- remove cheesy read_iloc() function
- move invalidate_entire_icache function to lock.S
- export proper prototypes for functions in lock.S
- only build lock.S when BFIN_ICACHE_LOCK is enabled
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 07aa7be5708afb3d9afa68f6f853c98e51bc64b3 |
|
13-Aug-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: convert L2 defines to be the same as the L1 defines
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 7e64acabfdb530b1b7d3db2592d75d102827baf3 |
|
06-Aug-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: move async memory programming into common setup_arch() as the banks dont really need to be setup fully as early as head.S
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 2d2009806dd843f3adc0cbbb5d2204980f28111a |
|
26-Jul-2008 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: If we double fault, rather than hang forever, reset
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 9de3a0b6979a4839d67ca840e386ea06acaabe39 |
|
26-Jul-2008 |
Robin Getz <rgetz@blackfin.uclinux.org> |
Blackfin arch: When icache is off, make sure people know it
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 3a2521fa75359450f5ec7e6b76847f933b7ee680 |
|
26-Jul-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: cache the values of vco/sclk/cclk as the overhead of doing so (~24 bytes) is worth avoiding the software mult/div routines
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| b1b154e503a0e590eb9e189586783dc8750f910e |
|
26-Jul-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
Blackfin arch: check the EXTBANKS field of the DDRCTL1 register to see if we are using both memory banks
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 262c3825a9f3eb0f4f30ebb4b1ee57397bcb3ffc |
|
19-Jul-2008 |
Sonic Zhang <sonic.zhang@analog.com> |
Blackfin arch: Extend sram malloc to handle L2 SRAM.
Extend system call to alloc L2 SRAM in application.
Automatically move following sections to L2 SRAM:
1. kernel built-in l2 attribute section
2. kernel module l2 attribute section
3. elf-fdpic application l2 attribute section
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 99d95bbd48f43dafdcd0540eb0da26c5655d7f33 |
|
14-Jul-2008 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin arch: Remove redundant kernel option
use kernel command line mem and max_mem bootargs to limit
availabe memory instead.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 1e78042c77dcc255abd456398981549269c63238 |
|
24-Apr-2008 |
Michael Hennerich <michael.hennerich@analog.com> |
[Blackfin] arch: take DDR DEVWD into consideration as well for BF548
Pointed-out-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 37b6972ad8fb08d438fd600888aff212b1b193b0 |
|
24-Apr-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: BF54x memsizes are in mbits, not mbytes
Pointed-out-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| a086ee2268abcfcbf80a114f4602e5b26aa80bf0 |
|
24-Apr-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: detect the memory available in the system on the fly by default
detect the memory available in the system on the fly by default
rather than forcing people to set this manually in the kconfig
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 9f8e895d6cc2f871bca6df2ad6791671de2adeae |
|
24-Apr-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: now that we can panic() early, dont need the delayed L1 overflow check
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| b85b82d980526d683dc3b39f2ac1f447fa84a105 |
|
24-Apr-2008 |
Sonic Zhang <sonic.zhang@analog.com> |
[Blackfin] arch: fix bug - Section data_l1_cacheline_aligned should be defined in link script of kernel
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3978
Section data_l1_cacheline_aligned should be defined in
link script of kernel, when L1 data sram bank A is not available.
In bf536 with all data cache is enabled, there is no L1 data sram.
Current link script won't define section data_l1.cacheline_aligned in
this case. But, if user select put cacheline_aligned data into l1 sram
in kernel menuconfig, these data will be dropped and access to these
data will trigger data CPLB exception.
Do panic in l1 relocation code as well.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 253bcf4f9b6dde1cfa169bc29655cf177d6a903b |
|
23-Apr-2008 |
Robin Getz <rgetz@blackfin.uclinux.org> |
[Blackfin] arch: Add a little bit more runtime info for MPU
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 3132b58679261ee0edfda3a846539bb1b0750705 |
|
23-Apr-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: theres no need to declare ram{end,start,base} in the head.S files
theres no need to declare ram{end,start,base} in the head.S files
when declaring them with the other memory related variables in setup.c
is so much simpler/nicer
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 2e8d7965e69a4879f9331d35b13ce234a3df4a04 |
|
26-Mar-2008 |
Yi Li <yi.li@analog.com> |
[Blackfin] arch: add code to initialize globals declared in linux/bootmem.h: max_pfn, max_low_pfn, min_low_pfn.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 03a44825be987d720df854f63b2f7bd30e46bdde |
|
08-Feb-2008 |
Jan Engelhardt <jengelh@computergmbh.de> |
procfs: constify function pointer tables
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-By: David Howells <dhowells@redhat.com>
Acked-by: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 72a7fe3967dbf86cb34e24fbf1d957fe24d2f246 |
|
07-Feb-2008 |
Bernhard Walle <bwalle@suse.de> |
Introduce flags for reserve_bootmem()
This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.
This patch:
Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past. This is to avoid conflicts.
Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| c0eab3b784ffdd3912450c7654c75bbcc0270ee8 |
|
02-Feb-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: fix building with mtd uclinux by putting the mtd_phys option into the function it actually gets used in
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 550d553838b5369efba9e51520c85dbd03371cc8 |
|
02-Feb-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: simpler header and update dates
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| b7627acc432a36072253bb1288f56e78c7d9423e |
|
02-Feb-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: move the init sections to the end of memory
Move the init sections to the end of memory so that after they
are free, run time memory is all continugous - this should help decrease
memory fragementation.
When doing this, we also pack some of the other sections a little closer
together, to make sure we don't waste memory. To make this happen,
we need to rename the .data.init_task section to .init_task.data, so
it doesn't get picked up by the linker script glob.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 6cda2e90588ba2f70543abf68b4815e10c86aef1 |
|
02-Feb-2008 |
Michael Hennerich <michael.hennerich@analog.com> |
[Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561
This fixes a bug (zero pointer access) only seen on BF561, during USB
Mass Storage/SCSI Host initialization.
It appears to be related to registering a none existing CPU
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 856783b37a958086c83ea44544d366affd0c2c4b |
|
08-Feb-2008 |
Yi Li <yi.li@analog.com> |
[Blackfin] arch: add "memmap=nn[KMG]@ss[KMG]" and "memmap=nn[KMG]$ss[KMG]" options to blackfin, based on arch/i386/kernel/e820.c
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| d45118b14bf04e124e4d875b136d5c1c4df97d57 |
|
24-Feb-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: make sure we export the _bfin_swrst symbol as modules (like the watchdog) need it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| 8929ecf84df529338d258f0ad9c1e553dfc921bc |
|
22-Feb-2008 |
Mike Frysinger <vapier.adi@gmail.com> |
[Blackfin] arch: add fixed code to the memory map output
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
|
| af8a5af3ff73055f7554a3a66307ad58792f09d5 |
|
17-Nov-2007 |
Bernd Schmidt <bernd.schmidt@analog.com> |
Blackfin arch: fix bug kernel not to boot up with mtd filesystems
Revert this patch:
move the init sections to the end of memory, so that after they
are free, run time memory is all continugous - this should help decrease
memory fragementation. When doing this, we also pack some of the other
sections a little closer together, to make sure we don't waste memory.
To make this happen, we need to rename the .data.init_task section to
.init_task.data, so it doesn't get picked up by the linker script glob.
Since it causes the kernel not to boot up with mtd filesystems.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 1754a5d9f97f16f729066b8f125351af4951d6fe |
|
23-Nov-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: use do_div() for the 64bit division as pointed out by Bernd
If you need a 64 bit divide in the kernel, use asm/div64.h.
Revert the addition of udivdi3.
Cc: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| ee7883b7466e721a72edacbcba2fe9cf449d82b2 |
|
27-Jan-2008 |
Yi Li <yi.li@analog.com> |
[Blackfin] arch: fix bug kernel boot message: memory information is not reasonable
Some of the information in kernel boot message is not reasonable.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3846
- use _rambase as the start of kernel image.
kernel is in the region [_rambase, _ramstart]
- count in pages in per-cpu-page list as available memory
- reserved memory now include: [0 - 4K] for bad pointer catching,
memory reserved for abnormaly 05000263, memory reserved by kernel itself.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| b97b8a998397e8c64699559099fa9febffae2b4d |
|
27-Jan-2008 |
Bernd Schmidt <bernd.schmidt@analog.com> |
[Blackfin] arch: Initial checkin of the memory protection support.
Enable it with CONFIG_MPU.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 54a1668ce53fe701f1d36651b591ced388e97275 |
|
24-Dec-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
[Blackfin] arch: scrub dead alive/idle LED code
if it does get re-added, it needs to be in the boards directory,
not common code ... or it needs a re-implementation
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 839e01c2bfba34f97ec36d0d355801e94254ffd5 |
|
15-Nov-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: move the init sections to the end of memory to help decrease memory fragementation
move the init sections to the end of memory, so that after they
are free, run time memory is all continugous - this should help decrease
memory fragementation. When doing this, we also pack some of the other
sections a little closer together, to make sure we don't waste memory.
To make this happen, we need to rename the .data.init_task section to
.init_task.data, so it doesn't get picked up by the linker script glob.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 9f336a53266f43ae1002f4aaad5373944589c828 |
|
29-Oct-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: ensure that speculative loads of bad pointers don't cause us to do bad things.
Fix/change formatting of a few more things.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 7728ec33faf88605fb871b9b0ecf8e45d4359678 |
|
29-Oct-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: fix bug: tell users if the kernel is recovering from a fault condition
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| da27abb79970e80904818e3866703ed02953a174 |
|
22-Oct-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: Javier Herrer writes: fix building when icache and dcache is disabled
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 2f6cf7bfc64c44d760d53caf4b547e7729392e78 |
|
21-Oct-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: add functions for converting between sclks and usecs
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 066954a3891d32198edad3b319792d8db6a6a575 |
|
21-Oct-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: use "char bfin_board_name[]" rather than "char *bfin_board_name" per discussion on lkml as the former uses less storage
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 73b0c0b0c1fa06acc3a02a58f301b0db0818d3d0 |
|
21-Oct-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: Fix up /proc/cpuinfo so it is like everyone else
Fix up /proc/cpuinfo so it is like everyone else, and gets
parsed by various applications properly. Still needs some tweaking on
parts without full L1 sram, like 532, 531, so it doesn't print out L1
bank info that doesn't exist.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| ce3afa1c043ab3d4125671441a57353d80f5f6f7 |
|
09-Oct-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: Enable earlyprintk earlier - so any error after our interrupt tables are set up will print out
Also ensure that the traps_c code doesn't cause a double fault, by
sending a signal to a faulting kernel before the memory subsystem
is fully initialized, by printing out the error message before sending
the signal.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| b5c0e2e8068ca31eb2547f2e2e677516ce9d8800 |
|
12-Sep-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: fix typo pointed out by David Rowe (Mhz -> MHz)
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 02f13f9d5c1d3104c5c4e7f4ae30c43d595d1d75 |
|
27-Aug-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT didn't work that well with DEBUG_KERNEL_START
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 3bebca2d20796dd3dc62c5d3e74148087c7ce5bd |
|
10-Oct-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: to do some consolidation of common code and common name spaces
now all BLKFIN should be BFIN, should be no functional changes.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 1aafd9091226a02b481298315f959f777294684e |
|
25-Jul-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: revise anomaly handling by basing things on the compiler not the kconfig defines
revise anomaly handling by basing things on the compiler not the kconfig defines,
so the header is stable and usable outside of the kernel. This also allows us to
move some code from preprocessing to compiling (gcc culls dead code)
which should help with code quality (readability, catch minor bugs, etc...).
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 8be80ed3f74a60e1af5a30e6b4fa4f744911676e |
|
25-Jul-2007 |
Bernd Schmidt <bernd.schmidt@analog.com> |
Blackfin arch: Initialize the exception vectors early in the boot process
Initialize the exception vectors early in the boot process, so that CPLB faults
can be handled when memory protection is enabled.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| e5b6bd61f2b38fbadf72ea7835ee1b1de6d7530b |
|
24-Jul-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: use bfin_read_SWRST() now that BF561 provides it
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 34e0fc89bdc1e6f50032dc43ed23167f5dbad6da |
|
12-Jul-2007 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin arch: Enable BF54x PIN/GPIO interrupts
Signed-off-bu: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 1f83b8f148a1eb967d2a628cbb741cd56fb54572 |
|
12-Jul-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: cleanup warnings from checkpatch -- no functional changes
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| de3025f4e2bc063c274f561f9daf2b696910ad3b |
|
25-Jun-2007 |
Jie Zhang <jie.zhang@analog.com> |
Blackfin arch: Add proper -mcpu option according to the cpu and silicon revision configuration
Add silicon revision "any" and "none". Add proper -mcpu option according
to the cpu and silicon revision configuration.
Need update to use latest Blackfin cross compile toolchain.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 669b792c77bbc30e9f4d9c95dbc918dc348c49c2 |
|
21-Jun-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: Clean up trace buffer handling, No major functional changes.
Turns on trace earlier, so crashes at kernel start should print out a
trace, making things easier to debug.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 29440a2b4cd37e32dfe0fa60ef1665775b24dab1 |
|
12-Jul-2007 |
Bernd Schmidt <bernd.schmidt@analog.com> |
Blackfin arch: Start untangling the CPLB handling code.
- Move cache initialization to C from assembly.
- Move anomaly workaround for writing [ID]MEM_CONTROL to assembly, so
that we don't have to mess around with .align directives in C source.
- Fix a bug where bfin_write_DMEM_CONTROL would write to IMEM_CONTROL
- Break out CPLB related code from kernel/setup.c into their own file.
- Don't define variables in header files, only declare them.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 7adfb58fbd0a27469d26536f99b66391c4c8e2a0 |
|
21-Jun-2007 |
Bernd Schmidt <bernd.schmidt@analog.com> |
Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses
This patch defines (and provides) entry points for certain user space functions
at fixed addresses. The Blackfin has no usable atomic instructions, but we can
ensure that these code sequences appear atomic from a user space point of view
by detecting when we're in the process of executing them during the interrupt
handler return path. This allows much more efficient pthread lock
implementations than the bfin_spinlock syscall we're currently using.
Also provided is a small sys_rt_sigreturn stub which can be used by the signal
handler setup code. The signal.c part will be committed separately.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 24a07a124198153540f8f43d9e91d16227aba66e |
|
12-Jul-2007 |
Roy Huang <roy.huang@analog.com> |
Blackfin arch: initial supporting for BF548-EZKIT
The ADSP-BF54x was specifically designed to meet the needs of convergent multimedia
applications where system performance and cost are essential ingredients. The
integration of multimedia, human interface, and connectivity peripherals combined
with increased system bandwidth and on-chip memory provides customers a platform to
design the most demanding applications.
Since now, ADSP-BF54x will be supported in the Linux kernel and bunch of related drivers
such as USB OTG, ATAPI, NAND flash controller, LCD framebuffer, sound, touch screen will
be submitted later.
Please enjoy the show.
Signed-off-by: Roy Huang <roy.huang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 86b73c8cfc8daeff554ae3e95e2a0ee77c45d499 |
|
21-Jun-2007 |
Robin Getz <robin.getz@analog.com> |
Blackfin arch: match kernel startup messaage with new linker script
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 5e10b4a653b9c7942fd1044fe5b592d544736897 |
|
11-Jun-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: add support for Alon Bar-Lev's dynamic kernel command-line
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 5af4c2b367c9c3dcc0cb02880df3a8581bb12a87 |
|
14-Jun-2007 |
Aubrey Li <aubrey.li@analog.com> |
Blackfin arch: try to split up functions like this into smaller units according to LKML review
Signed-off-by: Aubrey Li <aubrey.li@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| 52a078120c33b06a9abb721357adaafc3b55b7c1 |
|
11-Jun-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: move more of our startup code to .init so it can be freed once we are up and running
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
|
| a9c59c2746c7e773839d51027c0e16ccf41f8fef |
|
21-May-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: cache SWRST value at bootup so other things like watchdog can non-destructively query it
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| c0fc525dcc407a516132fc11af82375319ebdadb |
|
21-May-2007 |
Mike Frysinger <michael.frysinger@analog.com> |
Blackfin arch: move board specific setup out of common init code and into the board specific init code
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 6e537e9329d133526a576b741f85b3d48edc4ac1 |
|
21-May-2007 |
Michael Hennerich <michael.hennerich@analog.com> |
Blackfin arch: Fix bug using usb keyboard crashes kernel
Without conswitchp preset, we have the following situation:
- During initcalls: con_init is called, and returns because of
!display_desc.
- At this point there is no memory allocated for vc_cons[].d
A bit later vty_init calls kbd_init.
- From now on events are passed to kbd_event which will then call
kbd_keycode.
- kbd_keycode will oops on a NULL pointer dereference on vc->vc_tty
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
[ Added commit description based on email thread. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 1394f03221790a988afc3e4b3cb79f2e477246a9 |
|
06-May-2007 |
Bryan Wu <bryan.wu@analog.com> |
blackfin architecture
This adds support for the Analog Devices Blackfin processor architecture, and
currently supports the BF533, BF532, BF531, BF537, BF536, BF534, and BF561
(Dual Core) devices, with a variety of development platforms including those
avaliable from Analog Devices (BF533-EZKit, BF533-STAMP, BF537-STAMP,
BF561-EZKIT), and Bluetechnix! Tinyboards.
The Blackfin architecture was jointly developed by Intel and Analog Devices
Inc. (ADI) as the Micro Signal Architecture (MSA) core and introduced it in
December of 2000. Since then ADI has put this core into its Blackfin
processor family of devices. The Blackfin core has the advantages of a clean,
orthogonal,RISC-like microprocessor instruction set. It combines a dual-MAC
(Multiply/Accumulate), state-of-the-art signal processing engine and
single-instruction, multiple-data (SIMD) multimedia capabilities into a single
instruction-set architecture.
The Blackfin architecture, including the instruction set, is described by the
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
http://blackfin.uclinux.org/gf/download/frsrelease/29/2549/Blackfin_PRM.pdf
The Blackfin processor is already supported by major releases of gcc, and
there are binary and source rpms/tarballs for many architectures at:
http://blackfin.uclinux.org/gf/project/toolchain/frs There is complete
documentation, including "getting started" guides available at:
http://docs.blackfin.uclinux.org/ which provides links to the sources and
patches you will need in order to set up a cross-compiling environment for
bfin-linux-uclibc
This patch, as well as the other patches (toolchain, distribution,
uClibc) are actively supported by Analog Devices Inc, at:
http://blackfin.uclinux.org/
We have tested this on LTP, and our test plan (including pass/fails) can
be found at:
http://docs.blackfin.uclinux.org/doku.php?id=testing_the_linux_kernel
[m.kozlowski@tuxland.pl: balance parenthesis in blackfin header files]
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Aubrey Li <aubrey.li@analog.com>
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|