Commit graph

743 commits

Author SHA1 Message Date
Mike Frysinger
8f1cc23388 Blackfin arch: set_dma_callback: do not store .irq
set_dma_callback: do not store .irq if request_irq() failed so we dont
turn around and attempt to free_irq() it later on in free_dma()

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
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
259fea42e6 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>
2009-01-07 23:14:39 +08:00
Mike Frysinger
98946574a4 Blackfin arch: enable DEBUG_KERNEL for ADI boards
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
49946e7329 Blackfin arch: check pointers in safe_dma_memcpy
Check pointers in safe_dma_memcpy as this is the entry point for user-space code

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
c9e0020d49 Blackfin arch: push bf561 PERIPHERAL_MAP oddity into bf561-specific code
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
Michael Hennerich
51ed9ad7d2 Blackfin arch: ADP5588 QWERTY I2C Keyboard Input device driver
Add BF537-STAMP platform Support

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +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
f768a0eb90 Blackfin arch: Set TWI/I2C Clock to 100kHz
All slaves I'm aware of should support at least 100kHz

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
bdc17a1bf2 Blackfin arch: dma_memcpy() - do not return NULL when transferring a multiple of 65k
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
85a192e92d Blackfin arch: Add BF537-STAMP platform support for ENC28J60 SPI Ethernet MAC
This device shouldn't be considered as an alternative to a Memory Mapped
or built-in Ethernet MAC. Throughput is slow (~460kByte/s) while generating
a very high system load (~60%).

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:38 +08:00
Mike Frysinger
8f362f8d7b Blackfin arch: remove #if check on L2_LENGTH
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
Yi Li
0c720da35c Blackfin arch: Retire old spi_mmc driver
Turn to use the mmc_spi driver in mainline kernel.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Yi Li
f79ea4cba0 Blackfin arch: add mmc_spi support to BF537-STAMP
Signed-off-by: Yi Li <yi.li@analog.com>
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
Michael Hennerich
3e706cfcce Blackfin arch: fix bug - kernel build fails with undefined reference to pm_overflow_handler
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
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
d642a8ad55 Blackfin arch: implement support for /proc/dma
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
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
Graf Yang
f994607a2e Blackfin arch: get oprofile work for user space
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
Bernd Schmidt
6f985294f7 Blackfin arch: fix bugs in linker script when using upstream binutils
Fix a few problems I discovered when building a kernel with upstream CVS
binutils.

We have to add the NOTES macro to our linker script, since a kernel
built with --build-id is otherwise unable to boot.  Last time NOTES was
added, it broke things, but the definition of the macro has changed not
to rely on parts of the linker script that aren't present on Blackfin.

I also noticed that _l2_lma_start does not point into the kernel image,
but rather somewhere in L1/L2 space, which seems unintended.  Also, when
the L2 section was added to the linker script, the part following it which
computes then length of the init section was not updated.

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
Bernd Schmidt
d1a853057a Blackfin arch: Remove all traces of the relocation stack
Remove all traces of the relocation stack.  It's been removed from
binutils for years now.

Add a sanity overflow check to pcrel24 relocations to catch modules that
were built without -mlong-calls.

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
2eddbadaeb Blackfin arch: tweak the BUG_ON() check to allow for equal values
Tweak the BUG_ON() check to allow for equal values since the way pos is
handled ... it is always indexed and post incremented

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
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
Mike Frysinger
a024d41bfe Blackfin arch: rewrite cplbinfo to use seq files
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
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
Mike Frysinger
c97618d3b7 Blackfin arch: add simple-gpio resources to all adi/tinyboards
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
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
94106e0fb6 Blackfin arch: do not allow L2 to be cached on BF561 SMP
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
Michael Hennerich
a5f0717e51 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>
2008-11-18 18:04:31 +08:00
Graf Yang
8eb3e3bfd5 Blackfin arch: Request the gpio resource when making it as an irq pin, avoiding override it.
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
30af6d4904 Blackfin arch: Add code to free gpio when shutdown irq
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-11-18 17:48:21 +08:00
Mike Frysinger
b7e11293a4 Blackfin arch: fix bug - reboot fails on BF527
add ANOMALY_05000435 to handle SIC_IWR1 workaround for rebooting

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
94b28211d8 Blackfin arch: add ANOMALY_05000435 to our headers
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
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
dce783c5e4 Blackfin arch: add BUG_ON() checks to make sure we dont overflow the cplb tables
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
8624991187 Blackfin arch: make ROM_BASE depend on ROMKERNEL
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
cb15e57cc7 Blackfin arch: noMMU CPLB lookup tables can be in L1 SRAM
- unify duplicate page_size_table definitions
 - make sure it is placed alongside the other cplb switching code

Pointed-out-by: Michael McTernan <mmcternan@airvana.com>
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
05a717fbc8 Blackfin arch: do not include init sections in the kernel lock down as it gets released afterwards
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
3831638260 Blackfin arch: change return value
change return of close_cplbtab() and fill_cplbtab() to void since we
always return 0 and nowhere do we check this

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
ff4c02e4be Blackfin arch: unify cplbinfo files
Merge MPU and noMPU version of CPLB info code to one common version.

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
55e359a825 Blackfin arch: remove BFIN_DMA_5XX option
Do not make BFIN_DMA_5XX optional since a large portion of our code
relies on dma functions existing

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