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* 8250: fix boot hang with serial console when using with Serial Over Lan portMauro Carvalho Chehab2009-02-202-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel 8257x Ethernet boards have a feature called Serial Over Lan. This feature works by emulating a serial port, and it is detected by kernel as a normal 8250 port. However, this emulation is not perfect, as also noticed on changeset 7500b1f602aad75901774a67a687ee985d85893f. Before this patch, the kernel were trying to check if the serial TX is capable of work using IRQ's. This were done with a code similar this: serial_outp(up, UART_IER, UART_IER_THRI); lsr = serial_in(up, UART_LSR); iir = serial_in(up, UART_IIR); serial_outp(up, UART_IER, 0); if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) up->bugs |= UART_BUG_TXEN; This works fine for other 8250 ports, but, on 8250-emulated SoL port, the chip is a little lazy to down UART_IIR_NO_INT at UART_IIR register. Due to that, UART_BUG_TXEN is sometimes enabled. However, as TX IRQ keeps working, and the TX polling is now enabled, the driver miss-interprets the IRQ received later, hanging up the machine until a key is pressed at the serial console. This is the 6 version of this patch. Previous versions were trying to introduce a large enough delay between serial_outp and serial_in(up, UART_IIR), but not taking forever. However, the needed delay couldn't be safely determined. At the experimental tests, a delay of 1us solves most of the cases, but still hangs sometimes. Increasing the delay to 5us was better, but still doesn't solve. A very high delay of 50 ms seemed to work every time. However, poking around with delays and pray for it to be enough doesn't seem to be a good approach, even for a quirk. So, instead of playing with random large arbitrary delays, let's just disable UART_BUG_TXEN for all SoL ports. [akpm@linux-foundation.org: fix warnings] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* jsm: additional device supportAdam Lackorzynski2009-02-181-0/+3
| | | | | | | | | | | | | | I have a Digi Neo 8 PCI card (114f:00b1) Serial controller: Digi International Digi Neo 8 (rev 05) that works with the jsm driver after using the following patch. Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Cc: Scott H Kilau <Scott_Kilau@digi.com> Cc: Wendy Xiong <wendyx@us.ibm.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* atmel_serial might lose modem status changeAtsushi Nemoto2009-02-181-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I found a problem of handling of modem status of atmel_serial driver. With the commit 1ecc26 ("atmel_serial: split the interrupt handler"), handling of modem status signal was splitted into two parts. The atmel_tasklet_func() compares new status with irq_status_prev, but irq_status_prev is not correct if signal status was changed while the port is closed. Here is a sequence to cause problem: 1. Remote side sets CTS (and DSR). 2. Local side close the port. 3. Local side clears RTS and DTR. 4. Remote side clears CTS and DSR. 5. Local side reopen the port. hw_stopped becomes 1. 6. Local side sets RTS and DTR. 7. Remote side sets CTS and DSR. Then CTS change interrupt can be received, but since CTS bit in irq_status_prev and new status is same, uart_handle_cts_change() will not be called (so hw_stopped will not be cleared, i.e. cannot send any data). I suppose irq_status_prev should be initialized at somewhere in open sequence. Itai Levi pointed out that we need to initialize atmel_port->irq_status as well here. His analysis is as follows: > Regarding the second part of the patch (which resets irq_status_prev), > it turns out that both versions of the patch (mine and Atsushi's) > still leave enough room for faulty behavior when opening the port. > > This is because we are not resetting both irq_status_prev and > irq_status in atmel_startup() to CSR, which leads faulty behavior in > the following sequences: > > First case: > 1. closing the port while CTS line = 1 (TX not allowed) > 2. setting CTS line = 0 (TX allowed) > 3. opening the port > 4. transmitting one char > 5. Cannot transmit more chars, although CTS line is 0 > > Second case: > 1. closing the port while CTS line = 0 (TX allowed) > 2. setting CTS line = 1 (TX not allowed) > 3. opening the port > 4. receiving some chars > 5. Now we can transmit, although CTS line is 1 > > This reason for this is that the tasklet is scheduled as a result of > TX or RX interrupts (not a status change!), in steps 4 above. Inside > the tasklet, the atmel_port->irq_status (which holds the value from > the previous session) is compared to atmel_port->irq_status_prev. > Hence, a status-change of the CTS line is faultily detected. > > Both cases were verified on 9260 hardware. [haavard.skinnemoen@atmel.com: folded with patch from Itai Levi] Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Remy Bohmer <linux@bohmer.net> Cc: Marc Pignat <marc.pignat@hevs.ch> Cc: Itai Levi <itai.levi.devel@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Add enable_ms to jsm driverPaul Larson2009-01-301-0/+6
| | | | | | | | | This fixes a crash observed when non-existant enable_ms function is called for jsm driver. Signed-off-by: Scott Kilau <Scott.Kilau@digi.com> Signed-off-by: Paul Larson <pl@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-01-281-0/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: fix 5329 ColdFire periphal addressing uclinux: add process name to allocation error message m68knommu: correct the mii calculations for 532x ColdFire FEC m68knommu: add ColdFire M532x to the FEC configuration options m68knommu: fix syscall restarting m68knommu: remove the obsolete and long unused comempci chip support m68knommu: remove the no longer used PCI support option m68knommu: remove obsolete and unused eLIA board m68knommu: set NO_DMA m68knommu: fix cache flushing for the 527x ColdFire processors m68knommu: fix ColdFire 5272 serial baud rates in mcf.c m68knommu: use one exist from execption
| * m68knommu: fix ColdFire 5272 serial baud rates in mcf.cJohn Adamson2009-01-271-0/+11
| | | | | | | | | | | | | | | | I noticed (the hard way) that the mcf.c driver doesn't support the fractional precision register on the MCF5272. This makes the console dicey at 115200 baud and a system clock of 66.0 MHz. On the other hand, if your hardware is running at 66.666 MHz, it probably isn't a problem. Patch submitted by John Adamson <jadamson@allen-organ.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
* | Add support for '8-port RS-232 MIC-3620 from advantech'Michael Bramer2009-01-271-0/+6
| | | | | | | | | | | | | | | | | | This Patch add the device information for the MIC-3620 8-port RS-232 cPCI card from Advantech Co. Ltd. Signed-off-by: Michael Bramer <grisu@deb-support.de> Signed-off-by: Alan Cox <number6@the-village.bc.nu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Move jsm_remove_one to .devexit.textUwe Kleine-König2009-01-271-1/+1
| | | | | | | | | | | | | | | | | | The function jsm_remove_one is used only wrapped by __devexit_p so define it using __devexit. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Alan Cox <number6@the-village.bc.nu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | MIPS: enable serial UART support on PNX833X devices.Ihar Hrachyshka2009-01-271-1/+1
|/ | | | | | | | Enabled serial UART driver for PNX833X devices. Signed-off-by: Ihar Hrachyshka <ihar.hrachyshka@gmail.com> Signed-off-by: Alan Cox <number6@the-village.bc.nu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: fix sh-sci / early printk build on sh7723Magnus Damm2009-01-211-0/+1
| | | | | | | | This patch adds the SCSPTR register to the sh-sci driver in the case of sh7723 to make sure early printk builds properly. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* serial: sh-sci: Fix up SH7720/SH7721 SCI build.Paul Mundt2009-01-211-1/+3
| | | | | | Missing definitions for PORT_xxx defs. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* serial: Add 16850 uart type support to OF uart driverMatthias Fuchs2009-01-161-0/+1
| | | | | | | | | | | This patch adds support for "ns16850" as supported value of the compatible node in flat device tree uart descriptions. This is needed for example when you have a XR16C2850 uart connected to a PPC405's external bus controller. Signed-off-by: Matthias Fuchs <mfuchs@ma-fu.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* atmel_serial: fix flow control bugItai Levi2009-01-151-1/+1
| | | | | | | | | | | | | | | Fix the following problem, related to hardware flow control (CTS/RTS): Transmitting while CTS line is asserted in DMA mode, due to not checking for tx-stopped condition. We found these problems while testing the UARTs with hardware flow-control. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: "Andrew Victor" <avictor.za@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* When a break signal is detected, the next character should be ignored.Mischa Jonker2009-01-151-11/+12
| | | | | | | | | | | | | | | | | | | This was not implemented correctly for the pnx8xxx_uart driver. [From further discussion: Correct, you can look to it as two separate bugs: a) the next character is not ignored while it should; b) the status bits 31-8 are copied to the 'ch' variable while they shouldn't. Both bugs prevent correct break signal handling (and therefore correct behaviour of the magic SysRq key). Bug b didn't cause too much trouble earlier because in most situations the status bits are all zero; for this case they unfortunately aren't. ] Signed-off-by: Mischa Jonker <mischa.jonker@nxp.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: Add SupraExpress 336i PnP Voice ModemDaniel Gagnon2009-01-151-0/+2
| | | | | | | | | | | | | | Add SupraExpress 336i PnP Voice Modem Tested and working with the following device: (output from lspnp -v) 01:01.00 SUP1381 (unknown) state = active io 0x2f8-0x2ff irq 3 Signed-off-by: Daniel Gagnon <daniel.gagnon@yahoo.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 8250_pci: add support for netmos 9835 IBM devicesJiri Slaby2009-01-151-0/+8
| | | | | | | | | | | | | Most of netmos 9835 hardware is handled by parport-serial. IBM introduces a device which doesn't have any parallel ports and have screwed subdevice PCI id (not corresponding to port numbers). Handle this device (9710:9835 1014:0299) properly. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fix early_serial_setup() regressionHelge Deller2009-01-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Commit b430428a188e8a434325e251d0704af4b88b4711 ("8250: Don't clobber spinlocks.") introduced a regression on the parisc architecture, which broke the handover to the serial port at boottime. early_serial_setup() was changed to only copy a subset of the uart_port fields, and sadly the "type" and "line" fields were forgotten and thus the serial port was not initialized and could not be used for a handover. This patch fixes this by copying the missing fields. As this change to early_serial_setup() doesn't need an initialized spinlock in the uart_port struct any longer, we can drop the spinlock initialization in the superio driver. Cc: David Daney <ddaney@caviumnetworks.com> Cc: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Cc: linux-parisc@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* neo: Remove a bogus NULL checkAlan Cox2009-01-121-3/+0
| | | | | | | | | Julia Lawall found an un-needed check in the neo driver. Her patch moves the check to cover the code dereferencing it, however it cannot be NULL anyway so remove the NULL check instead. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2009-01-081-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: (23 commits) [ARM] fix pxa930_trkball build errors [ARM] fix netx [ARM] fix pnx4008 [ARM] fix pxa [ARM] remove missed CLPS7500 defconfig [ARM] clps711x: fix warning in edb7211-mm.c [ARM] clps711x: fix warning in fortunet [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c [ARM] Fix realview build [ARM] 5357/1: Kirkwood: add missing ge01 tclk initialization [ARM] 5358/1: AT2440EVB: Use new include path of mci.h [ARM] 5361/1: mv78xx0: fix compilation error [ARM] 5360/1: Orion: fix compilation error [ARM] 5359/1: Kirkwood: fix compilation error [ARM] S3C64XX: Fix EINT group macro definition [ARM] Ensure CONFIG_SERIAL_SAMSUNG_UARTS is always set. [ARM] S3C24XX: Add gpio_to_irq implementation [ARM] S3C24XX: Add gpio_to_irq() facility [ARM] footbridge: dc21285.c warning fixes [ARM] footbridge: add isa_init_irq() to common header ...
| * [ARM] Ensure CONFIG_SERIAL_SAMSUNG_UARTS is always set.Ben Dooks2009-01-081-1/+1
| | | | | | | | | | | | | | | | | | | | Always set CONFIG_SERIAL_SAMSUNG_UARTS when building any of the S3C platforms as even if the driver is not selected there it is still the facility for the machine files to register configuration data for the possibility of the driver being built. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | serial: Add driver for the Cell Network Processor serial port NWP deviceBenjamin Krill2009-01-084-1/+513
|/ | | | | | | | | | | | | | | | | Add support for the nwp serial device which is connected to a DCR bus. It uses the of_serial device driver to determine necessary properties from the device tree. The supported device is added as serial port number 85. NWP stands for network processor and it is part of the QPACE - Quantum Chromodynamics Parallel Computing on the Cell Broadband Engine project. The implementation is a lightweight uart implementation with the focus to consume as little resources as possible and it is connected to a DCR bus. Signed-off-by: Benjamin Krill <ben@codiert.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-01-072-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits) trivial: chack -> check typo fix in main Makefile trivial: Add a space (and a comma) to a printk in 8250 driver trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx trivial: Fix misspelling of "firmware" in powerpc Makefile trivial: Fix misspelling of "firmware" in usb.c trivial: Fix misspelling of "firmware" in qla1280.c trivial: Fix misspelling of "firmware" in a100u2w.c trivial: Fix misspelling of "firmware" in megaraid.c trivial: Fix misspelling of "firmware" in ql4_mbx.c trivial: Fix misspelling of "firmware" in acpi_memhotplug.c trivial: Fix misspelling of "firmware" in ipw2100.c trivial: Fix misspelling of "firmware" in atmel.c trivial: Fix misspelled firmware in Kconfig trivial: fix an -> a typos in documentation and comments trivial: fix then -> than typos in comments and documentation trivial: update Jesper Juhl CREDITS entry with new email trivial: fix singal -> signal typo trivial: Fix incorrect use of "loose" in event.c trivial: printk: fix indentation of new_text_line declaration trivial: rtc-stk17ta8: fix sparse warning ...
| * trivial: Add a space (and a comma) to a printk in 8250 driverPaul Bolle2009-01-061-1/+1
| | | | | | | | | | | | | | | | | | Commit d87a6d9 ("drivers/serial/: remove CVS keywords") removed one space too many in the printk in serial8250_init(). Put it back in (and add a comma for clarity). Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * trivial: fix then -> than typos in comments and documentationFrederik Schwarzer2009-01-061-2/+2
| | | | | | | | | | | | | | - (better, more, bigger ...) then -> (...) than Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | serial: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-01-061-2/+2
|/ | | | | Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* serial_8250: support for Sealevel Systems Model 7803 COMM+8Flavio Leitner2009-01-021-0/+3
| | | | | | | | Add support for Sealevel Systems Model 7803 COMM+8 Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Serial: UART driver changes for Cavium OCTEON.David Daney2009-01-021-0/+7
| | | | | | | | | | | Cavium UART implementation is not covered by existing uart_configS. Define a new uart_config (PORT_OCTEON) which is specified by OCTEON platform device registration code. Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Serial: Allow port type to be specified when calling serial8250_register_port.David Daney2009-01-022-2/+14
| | | | | | | | | | | | | | | | | | | Add flag value UPF_FIXED_TYPE which specifies that the UART type is known and should not be probed. For this case the UARTs properties are just copied out of the uart_config entry. This allows us to keep SOC specific 8250 probe code out of 8250.c. In this case we know the serial hardware will not be changing as it is on the same silicon as the CPU, and we can specify it with certainty in the board/cpu setup code. The alternative is to load up 8250.c with a bunch of OCTEON specific special cases in the probing code. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 8250: Serial driver changes to support future Cavium OCTEON serial patches.David Daney2009-01-021-58/+136
| | | | | | | | | | | | | | | | | | | In order to use Cavium OCTEON specific serial i/o drivers, we first patch the 8250 driver to use replaceable I/O functions. Compatible I/O functions are added for existing iotypeS. An added benefit of this change is that it makes it easy to factor some of the existing special cases out to board/SOC specific support code. The alternative is to load up 8250.c with a bunch of OCTEON specific iotype code and bug work-arounds. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 8250: Don't clobber spinlocks.David Daney2009-01-021-2/+13
| | | | | | | | | | | | | In serial8250_isa_init_ports(), the port's lock is initialized. We should not overwrite it. In early_serial_setup(), only copy in the fields we need. Since the early console code only uses a subset of the fields, these are sufficient. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fix for tty-serial-move-portAlexander Beregalov2009-01-021-3/+1
| | | | | | | | | | | | | | | | Hi Alan next-20081204 crashes with the following message: BUG: unable to handle kernel paging request at ffff88007d320248 IP: [<ffffffff803de934>] uart_remove_one_port+0xef/0x111 kfree(info); 393: 49 8d 7d 10 lea 0x10(%r13),%rdi 397: e8 00 00 00 00 callq 39c <uart_remove_one_port+0xef> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tty: We want the port object to be persistentAlan Cox2009-01-022-84/+62
| | | | | | | | | | | | | Move the tty_port and uart_info bits around a little. By embedding the uart_info into the uart_port we get rid of lots of corner case testing and also get the ability to go port<->state<->info which is a bit more elegant than the current data structures. Downsides - we allocate a tiny bit more memory for unused ports, upside we've removed as much code as it saved for most users.. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* __FUNCTION__ is gcc-specific, use __func__Harvey Harrison2009-01-021-30/+30
| | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* serial: set correct baud_base for Oxford Semiconductor Ltd EXSYS EX-41092 ↵Niels de Vos2009-01-021-0/+3
| | | | | | | | | | | | | Dual 16950 Serial adapter The PCI-card identified as "Oxford Semiconductor Ltd EXSYS EX-41092 Dual 16950 Serial adapter" is only usable with other devices (i.e. not the same card) after doing a "setserial /dev/ttyS<n> baud_base 115200". This baud_base should be default for this card. Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* And here's a patch (to be applied on top of the last) which preventsRussell King2009-01-021-16/+21
| | | | | | | | this happening again by making use of 'const'. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Convert the oxsemi tornado special cases to use the quirk interface and notRussell King2009-01-021-40/+51
| | | | | | | | scribble on its own reference structures. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Blackfin Serial Driver: Remove BI status for known_good_charSonic Zhang2009-01-021-0/+1
| | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@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>
* Blackfin Serial Driver: Fix bug - BF527-EZKIT unable to receive large files ↵Sonic Zhang2009-01-021-3/+8
| | | | | | | | | | | over UART in DMA mode Add spin_lock_irqsave() when receive and transfer data. Signed-off-by: Sonic Zhang <sonic.zhang@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>
* Blackfin Serial Driver: Clean serial console and early prink code.Sonic Zhang2009-01-021-12/+4
| | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@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>
* Blackfin Serial Driver: fix bug - SIR driver stop receiving randomlyGraf Yang2009-01-021-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | Bug description: The IRDA receiver may can't receiving any more after processed some signals. To duplicate this issue is put three IRDA devices together, one blackfin, two none blackfin, they will detect each other. Let one none blackfin devices irdaping the blackfin devices, when it stopped print out ping information, it is the time that blackfin stoped receiving, the time is random. The related register bit is OK, the other devices is sending data continuously. But no interrupt come. Fixing: I tried Michael's suggestion that request the UARTx error interrupt, and reset the IRDA when found FE error. This method helps much, but it can't completely avoid stop. Reset the IRDA before every time sending the data is more safe. 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>
* Blackfin Serial Driver: updates kgdb over Blackfin serial driver with kgdb ↵Sonic Zhang2009-01-021-98/+89
| | | | | | | | | framework Signed-off-by: Sonic Zhang <sonic.zhang@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>
* Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2008-12-3011-46/+461
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (407 commits) [ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices [ARM] pxafb: cleanup of the timing checking code [ARM] pxafb: cleanup of the color format manipulation code [ARM] pxafb: add palette format support for LCCR4_PAL_FOR_3 [ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching [ARM] pxafb: allow pxafb_set_par() to start from arbitrary yoffset [ARM] pxafb: allow video memory size to be configurable [ARM] pxa: add document on the MFP design and how to use it [ARM] sa1100_wdt: don't assume CLOCK_TICK_RATE to be a constant [ARM] rtc-sa1100: don't assume CLOCK_TICK_RATE to be a constant [ARM] pxa/tavorevb: update board support (smartpanel LCD + keypad) [ARM] pxa: Update eseries defconfig [ARM] 5352/1: add w90p910-plat config file [ARM] s3c: S3C options should depend on PLAT_S3C [ARM] mv78xx0: implement GPIO and GPIO interrupt support [ARM] Kirkwood: implement GPIO and GPIO interrupt support [ARM] Orion: share GPIO IRQ handling code [ARM] Orion: share GPIO handling code [ARM] s3c: define __io using the typesafe version [ARM] S3C64XX: Ensure CPU_V6 is selected ...
| * Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into develRussell King2008-12-181-1/+1
| |\
| | * [ARM] MXC: remove dependency to other include files from irqs.hSascha Hauer2008-12-181-1/+1
| | | | | | | | | | | | | | | | | | | | | This patch removes the inclusion of mach/hardware.h from mach/irqs.h and switches to more meaningful names for the irq related macros. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | Merge branch 'next-merged' of git://aeryn.fluff.org.uk/bjdooks/linux into develRussell King2008-12-186-38/+451
| |\ \ | | |/ | |/|
| | * [ARM] S3C: Remove cpufreq warnings for unset serial informationBen Dooks2008-12-181-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | As noted by Russell King, do not print any warnings if the uinfo or tty fields are not set when a CPU frequency change is sent. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * [ARM] S3C: Update CONFIG_SERIAL_SAMSUNG_UARTS handlingBen Dooks2008-12-181-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the usage of CONFIG_SERIAL_SAMSUNG_UARTS in several places in the kernel where it had been missed. This finishes fixing a long standing issue where S3C2443 and S3C64XX could not use the 4th UART Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * [ARM] S3C: Update number of serial portsBen Dooks2008-12-182-12/+28
| | | | | | | | | | | | | | | | | | | | | Update the serial driver to handle the 4 ports of the S3C2443 and S364XX series. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * [ARM] S3C: Update serial driver IRQ handlingBen Dooks2008-12-152-19/+29
| | | | | | | | | | | | | | | | | | | | | | | | The S3C64XX code changes the order of the serial interrupts, so change the registration process to pickup the extra IRQ resources. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * [ARM] S3C6400: serial support for S3C6400 and S3C6410 SoCsBen Dooks2008-12-154-4/+166
| | | | | | | | | | | | | | | | | | | | | Add support to the Samsung serial driver for the S3C6400 and S3C6410 serial ports. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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