Commit graph

414 commits

Author SHA1 Message Date
Jean Delvare
3760f73671 i2c: Convert most new-style drivers to use module aliasing
Based on earlier work by Jon Smirl and Jochen Friedrich.

Update most new-style i2c drivers to use standard module aliasing
instead of the old driver_name/type driver matching scheme. I've
left the video drivers apart (except for SoC camera drivers) as
they're a bit more diffcult to deal with, they'll have their own
patch later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jon Smirl <jonsmirl@gmail.com>
Cc: Jochen Friedrich <jochen@scram.de>
2008-04-29 23:11:40 +02:00
Christoph Lameter
5544b9ed81 blackfin: use kbuild.h instead of defining macros in asm-macros.c
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29 08:06:29 -07:00
WANG Cong
ecd0fa9825 Remove the macro get_personality
Remove the macro get_personality, use ->personality instead.

Cc: Christoph Hellwig <hch@infradead.org
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29 08:06:02 -07:00
Mike Frysinger
0c11700dbf [Blackfin] arch: add include/boot .gitignore files
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 08:29:11 +08:00
Michael Hennerich
e6c91b64dd [Blackfin] arch: Functional power management support: Add support for cpu frequency scaling
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 04:58:29 +08:00
Michael Hennerich
fe44193c55 [Blackfin] arch: Functional power management support: Remove broken cpu frequency scaling drivers
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 04:52:11 +08:00
Sonic Zhang
2fb6cb41ec [Blackfin] arch: Add a warning about the value of CLKIN.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 04:39:28 +08:00
Michael Hennerich
1e78042c77 [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>
2008-04-25 04:31:23 +08:00
Bernd Schmidt
5d750b9e4f [Blackfin] arch: Remove the circular buffering mechanism for exceptions
Remove the circular buffering mechanism for exceptions.  Instead, point RETX
at a safe location from which to fetch three NOPs.

This safe location is now in the fixed code area, and also used for certain
anomaly workarounds, to ensure that user space can find a valid ICPLB when
things are built with CONFIG_MPU.

Also, save I/DCPLB_FAULT_ADDRESS when lowering to level 5, since the hardware
reg is valid only at exception level.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 05:02:33 +08:00
Bernd Schmidt
00d205a1ce [Blackfin] arch: lose unnecessary dependency on CONFIG_BFIN_ICACHE for MPU
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 03:26:48 +08:00
Graf Yang
565c0d3ff4 [Blackfin] arch: fix bug - before assign new channel to the map register, need clear the bits first.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2445

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 03:10:04 +08:00
Graf Yang
5be36d22b2 [Blackfin] arch: add Blackfin on-chip SIR IrDA driver support
- add platform device resources in board files
 - add new bfin_sir.h to each machines

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 03:09:15 +08:00
Mike Frysinger
37b6972ad8 [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>
2008-04-25 02:19:17 +08:00
Robin Getz
7f1c906808 [Blackfin] arch: try to remove condition that causes double fault, by checking current before it gets dereferenced
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 03:36:31 +08:00
Michael Hennerich
8e9d5c7daf [Blackfin] arch: Add platform support for MTD DATAFLASH
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 08:46:19 +08:00
Mike Frysinger
5f004c2009 [Blackfin] arch: reorganize some of the board-customization options so that similar things are together and only available as needed
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 02:11:24 +08:00
Michael Hennerich
affee2b261 [Blackfin] arch: Allow concurrent use of GPIO and GPIO IRQ
The irq setup code no longer calls gpio request and free.
This patch also changes the default gpio_free behavior on Blackfin.
A freed GPIO keeps it's last state, and is not defaulted back to
an input. This is also what all other architectures do.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 08:10:10 +08:00
Mike Frysinger
a086ee2268 [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>
2008-04-25 02:04:05 +08:00
Mike Frysinger
4bea8b20fd [Blackfin] arch: add implicit icplb for the bootrom so we can use the utility functions in the kernel
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 07:23:36 +08:00
Grace Pan
ac76d889b5 [Blackfin] arch: Adjust the u-boot and kernel image partition size in mtd device.
Signed-off-by: Grace Pan <grace.pan@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 06:33:56 +08:00
Mike Frysinger
bc6e0fa159 [Blackfin] arch: use the same style for missing L1 sections
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 06:21:25 +08:00
Mike Frysinger
9f8e895d6c [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>
2008-04-24 06:20:11 +08:00
Sonic Zhang
b85b82d980 [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>
2008-04-24 06:13:37 +08:00
Robin Getz
253bcf4f9b [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>
2008-04-24 05:57:13 +08:00
Mike Frysinger
16428a4fa9 [Blackfin] arch: make the mask explicit rather than writing a negative number in hex
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:56:07 +08:00
Mike Frysinger
4e354b5499 [Blackfin] arch: cplb-mpu code clean up
- allow bootrom to be readable from supervisor mode
 - delete unused local variable "addr"
 - punt unused local defines of cplbinfo.c

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:44:32 +08:00
Bernd Schmidt
7795566495 [Blackfin] arch: Give the DMA base registers a more descriptive name
The DMA base registers are available in a global named "base_addr" for
every Blackfin variant. Give this a more descriptive name, and remove
duplicate tables from some drivers.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:31:18 +08:00
Bernd Schmidt
ac86a97853 [Blackfin] arch: Consistently export base_addr for all Blackfin variants.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:23:31 +08:00
Bernd Schmidt
37fa24212e [Blackfin] arch: Allow AD1836A board to be connected, either to SPORT2 or SPORT3.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:19:02 +08:00
Mike Frysinger
764cb81cdc [Blackfin] arch: actually implement get_cycles function
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:07:29 +08:00
Mike Frysinger
8cab0288c6 [Blackfin] arch: add boot messages to quickly distinguish between MPU/NOMPU settings
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:13:10 +08:00
Mike Frysinger
3132b58679 [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>
2008-04-24 05:12:09 +08:00
Mike Frysinger
8b6eb473c5 [Blackfin] arch: remove duplicated prototypes for internal cplb structures from the global blackfin header
remove duplicated prototypes for internal cplb structures from
the global blackfin header as nothing else should be accessing these

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:09:06 +08:00
Mike Frysinger
681793711a [Blackfin] arch: declare list of peripherals as const since we dont modify the incoming array
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:04:24 +08:00
Mike Frysinger
5d1617b247 [Blackfin] arch: merge ip0x-specific board changes
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:03:26 +08:00
Peter Korsgaard
f950f605b9 [Blackfin] arch: USB header files are now located under linux/usb/.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 03:34:13 +08:00
Graf Yang
6ed8394230 [Blackfin] arch: Resolve the clash issue of UART defines between blackfin headers and include/linux/serial_reg.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Cc: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 04:43:14 +08:00
Michael Hennerich
db68254f06 [Blackfin] arch: Apply Bluetechnix vendor patch
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 03:18:59 +08:00
Bernd Schmidt
d5adb029ef [Blackfin] arch: This allows XIP to work with FD-PIC.
Previously, init failed to do anything meaningful;
it turns out that the reason is that FD-PIC has a readonly data
section which can be located in the XIP filesystem, and various address checks
in the kernel reject such addresses for syscall arguments.  Hence, init's
  execve ("/bin/sh", ...)
failed with error code EFAULT.

There's room for improvement here: in case people want to have filesystems
on flash rather than in main memory, _access_ok should be modified to
allow this.

This bug fix is also dedicated to Michael Hennerich.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 03:06:15 +08:00
Bernd Schmidt
1ebc723cf0 [Blackfin] arch: support the reserved memory region in the MPU code
Pointed-out-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>
2008-04-24 02:58:26 +08:00
Bernd Schmidt
d56daae9be [Blackfin] arch: fix bug - a crash on bootup with CONFIG_MPU on the BF548
The function flush_switched_dcplbs was clearing the CPLB entries covering
the process permission bitmasks.  This means that the sequence

	flush_switched_dcplbs ();
        set_mask_dcplbs(mm->context.page_rwx_mask);

has a problem: if kernel code (such as an interrupt) causes a CPLB miss before
set_mask_dcplbs completes, the CPLB handler function causes a double fault,
with an instantaneous reboot.

This bug fix is dedicated to Michael Hennerich, the only person in the world
capable of providing working JTAG hardware.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 02:56:36 +08:00
Bernd Schmidt
697a9d65aa [Blackfin] arch: a rather old performance improvement for the signal handling code
This is a rather old performance improvement for the signal handling
code, which was originally only committed on the 2007R1 branch as a
workaround for what we suspected to be a hardware bug.

There's no point in constructing a sigreturn stub on the stack and
flushing caches; we can just make signal handlers return to a known
location in the fixed code area.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 02:51:36 +08:00
Mike Frysinger
5af29f5958 [Blackfin] arch: finish removing remnants of old BF537_PORT_H option of Blackfin EMAC driver
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
2008-04-24 02:37:27 +08:00
Mike Frysinger
7b8aa36e56 [Blackfin] arch: LARGE_ALLOCS was dropped along the way ... bring Blackfin in line
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 10:19:59 +08:00
Mike Frysinger
2973951c96 [Blackfin] arch: we no longer use BFIN_{SINGLE,DUAL}_CORE in our source
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 10:14:14 +08:00
Bryan Wu
1bee1a660a [Blackfin] arch: boards and machines defconfig updates
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 05:02:04 +08:00
Harvey Harrison
b85d858b40 [Blackfin] arch: __FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 09:39:01 +08:00
Meihui Fan
c5b50df8f0 [Blackfin] arch: fix bug - make sure we check the right L1 length
Signed-off-by: Meihui Fan <mhfan@hhcn.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 08:55:26 +08:00
Meihui Fan
6eceb0d4da [Blackfin] arch: add support for the rest of the gptimers on the BF54x
Signed-off-by: Meihui Fan <mhfan@hhcn.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 08:53:15 +08:00
Mike Frysinger
0e184c6b4f [Blackfin] arch: relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file where it actually gets used.
relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file
where it actually gets used.  this way when we change
CONFIG_MEM_SIZE in our kconfig, we only rebuild one or two files
rather than a whole bunch that implicitly include cplb.h.

this will also remove the ability to clear the swapcount on
the fly, but i really dont think that functionality is important.

ultimate goal is for CONFIG_MEM_SIZE to go away and calculate
this value on the fly based on what u-boot programmed for us.

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 08:23:51 +08:00