Commit graph

68 commits

Author SHA1 Message Date
Mike Frysinger
d41e800999 Blackfin arch: dma code: cannot simply OR the ndsize
cannot simply OR the ndsize ... need to clear out the old value first

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Bernd Schmidt
b13120d23b Blackfin arch: fix bug - crashes in tcp_v4_send_reset
Michael says that some bugs are crashes in tcp_v4_send_reset.
There's a missing clobber of "CC" in our checksum assembly
statement; fixing this makes the generated code look much saner.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Mike Frysinger
6ab729d82f Blackfin arch: desc_ptr is a pointer, so declare it as such
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Mike Frysinger
9c417a4329 Blackfin arch: move most dma functions into static inlines
move most dma functions into static inlines since they are vastly 1
liners that get/set a value in a structure

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Mike Frysinger
4c1ed6a57b Blackfin arch: dma header file: strip down includes to only necessary ones
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Mike Frysinger
9b011407d6 Blackfin arch: drop irq_callback from struct dma_channel
the irq member already serves the same purpose

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Mike Frysinger
68532bdac3 Blackfin arch: drop custom dma_interrupt_t and just use irq_handler_t
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Mike Frysinger
dd3dd384df 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>
2009-01-07 23:14:39 +08:00
Mike Frysinger
b03f203986 Blackfin arch: cleanup - use scm for changelog, not file headers
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Robin Getz
a45d575f53 Blackfin arch: Add basic irq stack checking for Blackfin
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Mike Frysinger
211daf9d72 Blackfin arch: rename MAX_BLACKFIN_DMA_CHANNEL to MAX_DMA_CHANNELS to match everyone else
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Sonic Zhang
55e247e715 Blackfin arch: Use reads/writes instead of ins/outs directly
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Michael McTernan
99532fd2a0 Blackfin arch: add const to some function prototype and struct dma_channel
Signed-off-by: Michael McTernan <mmcternan@airvana.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Graf Yang
dbc895f955 Blackfin arch: smp patch cleanup from LKML review
1. Use inline get_l1_... functions instead of macro
2. Fix compile issue about smp barrier functions

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Michael Hennerich
983e101605 Blackfin arch: gpio.h split into machine subfolders like already done for BF54x
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Mike Frysinger
16daaf59c9 Blackfin arch: cleanup the header file comments
use scm changelog rather than comment blocks in files

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Michael Hennerich
73feb5c09d Blackfin arch: fix bugs and unify BFIN_KERNEL_CLOCK option
- remove duplicated code and headers
 - add option allowing arbitrary SDRAM/DDR Timing parameters.
 - mark automatically calculated timings as EXPERIMENTAL
 - fix comment header block

Related to BUGs:
 - kernel boot up fails with CONFIG_BFIN_KERNEL_CLOCK item on.
 - kernel does not boot if re-program clocks

[ Mike Frysinger <vapier.adi@gmail.com>
 - fix comment header
 - mark do_sync static
 - document the DMA shutdown
 - simplify SIC_IWR handling
 - fix ANOMALY_05000265 handling to work as intended ]

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Graf Yang
9570ff4af6 Blackfin arch: Allow a gpio pin be requested both as gpio and irq.
[Mike Frysinger <vapier.adi@gmail.com>:
 - use KERN_NOTICE when using gpios as both irq and non
   rather than KERN_ERR
 - embedded newlines in printk() does not fly]

Signed-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>
2009-01-07 23:14:38 +08:00
Mike Frysinger
1ea9925553 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>
2009-01-07 23:14:38 +08:00
Mike Frysinger
b5e986c468 Blackfin arch: only define HI/LO macros for assembly files
Only define HI/LO macros for assembly files since some common C files
use HI/LO as variable names

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
4c5b8a648f Blackfin arch: remove pointless define IN_KERNEL
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
4db557d4ae Blackfin arch: define BASE_BAUD like everyone else
define BASE_BAUD like everyone else, althought it is only used by 8250

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
ecdbfc1ac1 Blackfin arch: add mmiowb() as some drivers expect
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:21 +08:00
Mike Frysinger
9b78442fad Blackfin arch: rename cache_lock() to bfin_cache_lock()
rename cache_lock() to bfin_cache_lock() to avoid namespace collision
with common code

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
a3765e0cd5 Blackfin arch: use generic xor.h
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
4005978424 Blackfin arch: rename irq_flags to bfin_irq_flags
rename irq_flags to bfin_irq_flags to avoid namespace
collision with common code

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
b60705765a Blackfin arch: move out irq related functions
move irq related functions into asm/irq.h and out of the mondo asm/system.h

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
7beb7439ac Blackfin arch: move SIC_SYSIRQ() to the one file that actually uses it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
a638735b3d Blackfin arch: move ack_bad_irq() prototype to hardirq.h to match other arches
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
34616c8bbd Blackfin arch: delete old comments and NO_IRQ define
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Bryan Wu
2e8ca59147 Blackfin arch: Use GPIO_BANKSIZE macro to replace const number 16 for GPIO_BANK_NUM macro caculating
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Graf Yang
b8a989893c Blackfin arch: SMP supporting patchset: Blackfin CPLB related 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 CPLB related code

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Graf Yang
6b3087c64a Blackfin arch: SMP supporting patchset: Blackfin header files and machine common 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 header files
and machine common code

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Michael Hennerich
a4f0b32c33 Blackfin arch: Convert Blackfin GPIO driver to use common gpiolib/gpiochip infrastructure
- This patch adds support for ARCH_WANT_OPTIONAL_GPIOLIB.
 - It may be changed in future to ARCH_REQUIRE_GPIOLIB.
 - Change GPIO_BANK_NUM use DIV_ROUND_UP( , ) macro

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Bryan Wu
397861cd80 Blackfin arch: fix bug - gpio_bank() macros messed up bank number caculating with positioning a gpio
The whole story:

Before BF51x merged, all the MAX_BLACKFIN_GPIOS are integral multiple of GPIO_BANKSIZE (= 16).
But BF51x provides MAX_BLACKFIN_GPIOS = 40 which includes 3 banks and the 3rd bank has only 8
GPIO pins.

Therefore, gpio_bank() macros is correct when you try to find a GPIO in which bank (GPIO_35 is
in bank 2). But on BF51x gpio_bank(MAX_BLACKFIN_GPIOS) only gives out 2 banks instead of 3
banks for some static array initialization.

This patch add a new macros gpio_bank_n() and GPIO_BANK_NUM to do bank number caculating and
remain the gpio_bank() macros for positioning a gpio in which bank.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
5ff294fa00 Blackfin arch: fixup get_user() macros
- to avoid uninitialized errors
 - make invalid sizes a build error

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Michael Hennerich
a2ba8b1998 Blackfin arch: lookup channel2irq() only once
Add irq to struct dma_channel lookup channel2irq() only once,
since channel2irq() is fairly large on some Blackfin derivatives.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-28 18:19:29 +08:00
Bryan Wu
2f6f4bcdd6 Blackfin arch: add support for Blackfin latest processor family BF51x
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:21 +08:00
Michael Hennerich
dc26aec25d Blackfin arch: BF538/9 Linux kernel Support
Add supporing for Blackfin BF538 and BF539 processors.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Harvey Harrison
cfcac2f7dd blackfin: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 18:10:28 -08:00
Matthew Wilcox
ea43546750 atomic_t: unify all arch definitions
The atomic_t type cannot currently be used in some header files because it
would create an include loop with asm/atomic.h.  Move the type definition
to linux/types.h to break the loop.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.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>
2009-01-06 15:59:10 -08:00
Rusty Russell
ccec25ff69 blackfin: define __fls
Like fls, but can't be handed 0 and returns the bit number.

(I broke this arch in linux-next by using __fls in generic code).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2009-01-01 10:12:17 +10:30
Mike Frysinger
62273eeb6a Blackfin arch: fix a broken define in dma-mapping
dma_mapping_error is an actual function, so fix broken define with a
real inline stub

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:22 +08:00
Mike Frysinger
3b1f26a50a 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>
2008-10-27 18:21:43 +08:00
Linus Torvalds
1b821bfb03 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us
  Blackfin arch: disable CONFIG_HW_RANDOM and CONFIG_DAB in defconfig files
  Blackfin arch: update cache flush prototypes with argument names to make them less mysterious
  Blackfin arch: move bfin_addr_dcachable() and friends into the cacheflush header where it belongs
  Blackfin arch: use the new bfin_addr_dcachable() function
  Blackfin arch: fix bug - build kernel failed at head.S when reprogram clock on all platforms
  Blackfin arch: unify/cleanup cache code
  Blackfin arch: update AD7879 platform resources in board file
  Blackfin arch: Zero out bss region in L1/L2 memory.
  Blackfin arch: add read/write IO accessor functions to Blackfin
  Blackfin arch: fix bug - some serial header files set RTS to an input when they should all be outputs
2008-10-16 12:45:08 -07:00
Mike Frysinger
1390da4ee7 Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-16 23:55:41 +08:00
Mike Frysinger
8fb4f8f056 Blackfin arch: update cache flush prototypes with argument names to make them less mysterious
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-16 23:39:12 +08:00
Mike Frysinger
04be80ef0b Blackfin arch: move bfin_addr_dcachable() and friends into the cacheflush header where it belongs
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-16 23:33:53 +08:00
Bryan Wu
121e598f5d Blackfin arch: add read/write IO accessor functions to Blackfin
This is to kill some compiling warning on DM9000 netdev driver.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-16 22:31:56 +08:00
Martin Schwidefsky
0b59268285 [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
The SET_PERSONALITY macro is always called with a second argument of 0.
Remove the ibcs argument and the various tests to set the PER_SVR4
personality.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-16 15:40:05 +02:00