All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.
The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.
New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time. Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.
The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.
Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.
Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.
===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
// but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}
@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}
@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
*off = E
|
*off += E
|
func(..., off, ...)
|
E = *off
)
...+>
}
@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}
@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
*off = E
|
*off += E
|
func(..., off, ...)
|
E = *off
)
...+>
}
@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}
@ fops0 @
identifier fops;
@@
struct file_operations fops = {
...
};
@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
.llseek = llseek_f,
...
};
@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
.read = read_f,
...
};
@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
.write = write_f,
...
};
@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
.open = open_f,
...
};
// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
... .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};
@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
... .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};
// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
... .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};
// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};
// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};
@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+ .llseek = default_llseek, /* write accesses f_pos */
};
// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////
@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
.write = write_f,
.read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};
@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};
@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};
@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Rename h/w IRQ flags handling functions to be in line with what is expected for
the irq renaming patch. This renames local_*_hw() to hard_local_*() using the
following perl command:
perl -pi -e 's/local_irq_(restore|enable|disable)_hw/hard_local_irq_\1/ or s/local_irq_save_hw([_a-z]*)[(]flags[)]/flags = hard_local_irq_save\1()/' `find arch/blackfin/ -name "*.[ch]"`
and then fixing up asm/irqflags.h manually.
Additionally, arch/hard_local_save_flags() and arch/hard_local_irq_save() both
return the flags rather than passing it through the argument list.
Signed-off-by: David Howells <dhowells@redhat.com>
Split the PLL control code from the Blackfin machine-specific cdef headers so
that the irqflags functions can be renamed without incurring a header loop.
Signed-off-by: David Howells <dhowells@redhat.com>
The common bfin_sport.h header now has unified definitions of these, so
stop polluting the global namespace.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
These two platforms didn't properly fill nr_chips in gen_nand
registration and therefore depended on gen_nand bug fixed by by commit
81cbb0b177 ("mtd: gen_nand: fix support for
multiple chips")
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This is parallel to the existing P_DEFAULT_BOOT_SPI_CS, but in terms of
the GPIO value so it can be used with the normal gpio API.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The timeout value is in jiffies, so it should be using HZ, not a plain
number. As '10000' is ambiguous, 1HZ is used as conservative default.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Valentin Yakovenkov <yakovenkov@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The ASoC codec driver was generalized and renamed, so update the board
resources accordingly.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This makes room for off-chip IRQ controllers.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
SMP systems require per-cpu local clock event devices in order to enable
HRT support. One a BF561, we can use local core timer for this purpose.
Originally, there was one global core-timer clock event device set up for
core A.
To accomplish this feat, we need to split the gptimer0/core timer logic
so that each is a standalone clock event. There is no requirement that
we only have one clock event source anyways. Once we have this, we just
define per-cpu clock event devices for each local core timer.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Common API already provides functions for managing online CPUs.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This lets people easily select the UART/SPORT consoles for early printk
while leveraging the pins declared in the boards file.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Rather than keeping the pins in the actual driver and worrying about a
mess of Kconfig options, declare all the desired pin resources in the
boards file. This lets people easily select the specific pins/ports for
the normal UART as well as GPIOs for CTS/RTS.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When testing PREEMPT_RT kernel on BF561-EZKit, the kernel blocks while
booting. When the kernel initializes the ethernet driver, it sleeps and
never wakes up.
The issue happens when the kernel waits for a timer for Core B to timeout
(the timers are per-cpu based: static DEFINE_PER_CPU(struct tvec_base *,
tvec_bases) = &boot_tvec_bases).
However, the ksoftirqd thread for Core B (note, the ksoftirqd thread is
also per-cpu based) cannot work properly, and the timers for Core B never
times out.
When ksoftirqd() for the first time runs on core B, it is possible core A
is still initializing core B (see smp_init() -> cpu_up() -> __cpu_up()).
So the "cpu_is_offline()" check may return true and ksoftirqd moves to
"wait_to_die".
So delay the core b start up until the per-cpu timers have been set up
fully.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Every Blackfin variant has the same DMA bit masks, so avoid duplicating
them over and over in each mach header.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The driver changed from "isp1760-hcd" to "isp1760", so update resources
to match.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Ironically, the atomic testset instruction cannot be interrupted else it
will produce incorrect results. So disable interrupts to help it out.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Add some recently documented anomalies (473, 474, 475, 477). Also stick
a "do not edit" notice in here so people know these are copies of some
master version.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The simple-gpio has been replaced by the gpio sysfs interface, so drop the
unused simple-gpio resources from all Blackfin boards.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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>
The ASoC drivers have dropped the redundant "-spi" suffix in the driver
name, so update the board resources accordingly.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
These hardware devices are dead and the drivers never cleaned up/merged,
so punt the useless board resource info.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The handling of updating the [DI]MEM_CONTROL MMRs does not follow proper
sync procedures as laid out in the Blackfin programming manual. So rather
than audit/fix every call location, create helper functions that do the
right things in order to safely update these MMRs. Then convert all call
sites to use these new helper functions.
While we're fixing the code, drop the workaround for anomaly 05000125 as
that anomaly applies to old versions of silicon that we do not support.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Latest smc91x driver allows you to specify settings in board resources
rather than needing CONFIG_BLACKFIN in the drivers/net/smc91x.h header.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since the hardware only provides reporting for the last exception handled,
and the values are valid only when executing the exception handler, we
need to save the context for reporting at a later point. While we do this
for one exception, it doesn't work properly when handling a second one as
the original exception is clobbered by the double fault. So when double
fault debugging is enabled, create a dedicated shadow of these values and
save/restore out of there. Now the crash report properly displays the
first exception as well as the second one.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The Blackfin serial headers were inverting the CTS value leading to wrong
handling of the CTS line which broke CTS/RTS handling completely.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Rather than assume Core B is always run with caches turned on, let people
load into any of the on-chip memory regions. It is their business how the
SRAM/Cache regions are utilized, so don't prevent them from being able to
load into them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Many aspects of the Blackfin memory map is exactly the same across all
variants. Rather than copy and paste all of these duplicated values in
each header, unify all of these into the common Blackfin memory map header
file. In the process, push down BF561 SMP specific stuff to the BF561
specific header to keep the noise down.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The Blackfin SPI driver can be driven by an IRQ now, so declare it in
the board resources.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Try to keep the naming conventions consistent, so:
SPI_ADC_BF533 -> BFIN_SPI_ADC
TWI_LCD -> BFIN_TWI_LCD
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
For systems where the core cycles are not a usable tick source (like SMP
or cycles gets updated), enable gptimer0 as an alternative.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Add some defines to make the BF538/BF561 look like most other Blackfin
parts in that it has a MDMA0 channel available for low level init.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since 90% of this driver can be handled in user space, move it to the
corebld user space application.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Both software emulated and hardware based CTS and RTS are enabled in
serial driver.
The CTS RTS PIN connection on BF548 UART port is defined as a modem
device not as a host device. In order to test it under Linux, please
nake a cross UART cable to exchange CTS and RTS signal.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Only the CTS bit is affected.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I have a system where UART0 is configured with hardware flow control, but UART1
doesn't have it enabled. Attempting to access UART1 in this configuration
results in the following error in dmesg:
<3>bfin-gpio: GPIO 0 is already reserved as Peripheral by bfin-uart !
<5>Stack from 0082bc7c:
<5> 0082bc88 00404dd6 00000003 00000000 0054051e 004079da 0082bcb4
00000000
<5> 00000003 00000000 0052686c 0113f2a0 005fa3f0 00000032 20515249
00003035
<5> 00427228 00526e50 0113f2e0 005fa3f0 00000032 0113f2e0 0054b748
0000ffff
<5> 22222222 22222222 004e1628 00427304 00000000 00000032 00000023
0054b748
<5> 00487a94 0054b7e8 0054b748 0000000b 00487fb8 0054b748 0054b748
00000001
<5> 0000000a 005fa3f0 009d4fe8 0101e3c0 0054b748 005fa3f0 0050b134
0054b748
<5>
<5>Call Trace:
<4>[<00485c16>] _uart_startup+0x56/0x178
<4>[<004865c8>] _uart_open+0x40/0x3e0
<4>[<0048661c>] _uart_open+0x94/0x3e0
<4>[<0047f1ce>] _init_dev+0x1fa/0x450
<4>[<004e1628>] ___mutex_unlock_slowpath+0x30/0xe8
<4>[<004815da>] _tty_open+0xf6/0x21c
<4>[<0043dab0>] ___path_lookup_intent_open+0x34/0x7c
<4>[<004375e4>] _chrdev_open+0x7c/0x134
<4>[<0043dc2c>] _open_namei+0x60/0x568
<4>[<00433fa2>] ___dentry_open+0x9e/0x188
<4>[<00437568>] _chrdev_open+0x0/0x134
<4>[<0043410c>] _nameidata_to_filp+0x30/0x3c
<4>[<00434152>] _do_filp_open+0x3a/0x44
<4>[<00408826>] _task_running_tick+0x102/0x278
<4>[<0043418e>] _do_sys_open+0x32/0xac
<4>[<0043ede4>] _sys_ioctl+0x28/0x50
<4>[<0043edbc>] _sys_ioctl+0x0/0x50
<4>[<00434224>] _sys_open+0x18/0x20
<4>[<0043420c>] _sys_open+0x0/0x20
<4>[<00418174>] _sys_setuid+0x0/0xc8
This is because the #ifdef's in bfin_serial_5xx.h are messed up. More
specifically, they add/remove the uart_{rts,cts}_pin fields in
bfin_serial_resources based on whether the particular port has rts/cts enabled,
as opposed to when either port has it enabled.
This patch fixed this.
Signed-off-by: Tom Parker <blackfin@tevp.net>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
make sure ANOMALY_05000278/ANOMALY_05000380 is defined for all parts
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
[Mike Frysinger <vapier.adi@gmail.com>:
- setup P_DEFAULT_BOOT_SPI_CS for every arch based on
the default bootrom behavior and convert all our boards
to it
- revert previous anomaly change ... bf51x is not affected
by anomaly 05000353]
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
[Mike Frysinger <vapier.adi@gmail.com>:
- handle bf531/bf532/bf534/bf536 variants in ipipe.h
- cleanup IPIPE logic for bfin_set_irq_handler()
- cleanup ipipe asm code a bit and add missing ENDPROC()
- simplify IPIPE code in trap_c
- unify some of the IPIPE code and fix style
- simplify DO_IRQ_L1 handling with ipipe code
- revert IRQ_SW_INT# addition from ipipe merge
- remove duplicate get_{c,s}clk() prototypes
]
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
- 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>
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>
Delay PLL_CTL/VR_CTL wrappers as much as possible to avoid
the inter-dependency problems with cdef and common headers
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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 BF561 kernel code
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>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (60 commits)
Blackfin arch: make sure we include the fix for SPORT hysteresis when reprogramming clocks
Blackfin arch: Fix bogus str_ident check in gpio code
Blackfin arch: AD7879 Touchscreen driver
Blackfin arch: introducing bfin_addr_dcachable
Blackfin arch: fix a typo in comments
Blackfin arch: Remove useless head file
Blackfin arch: make sure L2 start and length are always defined (fixes building on BF542)
Blackfin arch: use the Blackfin on-chip ROM to do software reset when possible
Blackfin arch: update anomaly headers to match the latest sheet
Blackfin arch: bfin_reset() is an internal reboot function ... everyone should go through machine_restart()
Blackfin arch: print out error/warning if you are running on the incorrect CPU type
Blackfin arch: remove non-bf54x ifdef logic since this file is only compiled on bf54x parts
Blackfin arch: update board defconfigs
Blackfin arch: Add optional verbose debug
Blackfin arch: emulate a TTY over the EMUDAT/JTAG interface
Blackfin arch: have is_user_addr_valid() check for overflows (like when address is -1)
Blackfin arch: ptrace - fix off-by-one check on end of memory regions
Blackfin arch: Enable framebuffer support for the BF526-EZkit TFT LCD display
Blackfin arch: flash memory map and dm9000 resources updating
Blackfin arch: early prink code still use uart core console functions to parse and set configure option string
...
We now use the sir_dev/irtty_sir/uart/bfin_serial drivers framework
to monitor the TX status.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
move common variables out of serial headers and into the serial driver and
rename "nr_ports" to "nr_active_ports" so as to easily differentiate
between BFIN_UART_NR_PORTS (the # of available) and nr_ports (the # of enabled)
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As pointed out by Appalayagari Sreedhar, make sure we include the fix
for SPORT hysteresis when reprogramming clocks.
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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>
these are highly board specific, so putting into generic doesnt make much sense
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
