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* serial: i.MX: add i.MX7 supportJuergen Borleis2017-01-191-0/+3
| | | | | Signed-off-by Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: i.MX: Enable clockSascha Hauer2017-01-191-0/+1
| | | | | | For architectures which do not enable all clocks during initialization. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: i.MX: Add i.MX6ul supportSascha Hauer2016-11-081-0/+3
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/driver'Sascha Hauer2016-03-111-1/+5
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| * driver: replace dev_request_mem_region with dev_request_mem_resourceSascha Hauer2016-03-071-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_request_mem_region doesn't work properly one some SoCs on which PTR_ERR() values clash with valid return values from dev_request_mem_region. Replace them with dev_request_mem_resource where possible. This patch has been generated with the following semantic patch: // <smpl> @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) { ... - return PTR_ERR(io); -} + return PTR_ERR(iores); +} +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) - return PTR_ERR(io); -} + return PTR_ERR(iores); +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { - ret = PTR_ERR(io); +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) { + ret = PTR_ERR(iores); ... } +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) + return PTR_ERR(iores); +io = IOMEM(iores->start); ...+> } @@ identifier func; @@ func(...) { <+... struct resource *iores; -struct resource *iores; ...+> } // </smpl> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | serial: imx: Support DTE modeSascha Hauer2016-02-261-2/+9
|/ | | | | | Based on Kernel commit 20ff2fe60a: serial: imx: add support for DTE mode Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: i.MX: Write settings to a correct registerAndrey Smirnov2015-05-151-2/+2
| | | | | | | | Fix what looks like a copy and past error, where settings for USR1 register were being written to USR2. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX: serial: Add baud rate calculation convenience functionsAndrey Smirnov2015-05-071-2/+2
| | | | | | | | | | Add two functions to calculate values for UBMR and UBIR registers. This way both early serial initalization code and serial_imx.c can use them and not duplicate the code. Singed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX: Move UART definitions into a separate fileAndrey Smirnov2015-05-071-107/+1
| | | | | | | | | Move UART definitions into a separate file to avoid redefinition in <mach/debug_ll.h> and magical constants in low level UART initialization code. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* of: use 'const void *' for struct of_device_id.dataAntony Pavlov2015-04-301-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since 2011 barebox' of_device_id struct uses unsigned long type for data field: struct of_device_id { char *compatible; unsigned long data; }; Almost always struct of_device_id.data field are used as pointer and need 'unsigned long' casting. E.g. see 'git grep -A 4 of_device_id drivers/' output: drivers/ata/sata-imx.c:static __maybe_unused struct of_device_id imx_sata_dt_ids[] = { drivers/ata/sata-imx.c- { drivers/ata/sata-imx.c- .compatible = "fsl,imx6q-ahci", drivers/ata/sata-imx.c- .data = (unsigned long)&data_imx6, drivers/ata/sata-imx.c- }, { Here is of_device_id struct in linux kernel v4.0: struct of_device_id { char name[32]; char type[32]; char compatible[128]; const void *data; }; Changing of_device_id.data type to 'const void *data' will increase barebox' linux kernel compatibility and decrease number of 'unsigned long' casts. Part of the patch was done using the 'coccinelle' tool with the following semantic patch: @rule1@ identifier dev; identifier type; identifier func; @@ func(...) { <... - dev_get_drvdata(dev, (unsigned long *)&type) + dev_get_drvdata(dev, (const void **)&type) ...> } @rule2@ identifier dev; identifier type; identifier func; identifier data; @@ func(...) { <... - dev_get_drvdata(dev, (unsigned long *)&type->data) + dev_get_drvdata(dev, (const void **)&type->data) ...> } Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* console: allow to specify the device idJean-Christophe PLAGNIOL-VILLARD2015-01-131-1/+3
| | | | | | | so we can use dynamic number id with specific devname Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: i.MX: Use "per" clkSascha Hauer2014-11-271-1/+1
| | | | | | Which is the correct clock for the baud rate. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: imx: Fix for non-devicetree boardsPhilipp Zabel2014-09-051-3/+5
| | | | | | | | | | | Commit 3843bfd0ab77eaf125ca617922927b61fc8ded74 "serial: imx: Determine device name from device tree" broke this driver for non-devicetree boards, since of_alias_get may not be called with a NULL pointer as first argument. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: imx: Determine device name from device treeSascha Hauer2014-07-111-0/+4
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: imx: Fix buggy transmissions when baudrate mismatchesFabio Estevam2014-06-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bit 7 of UCR3 is described in the i.MX reference manuals (with the exception of i.MX1) as follows: ADNIMP: Autobaud Detection Not Improved-. Disables new features of autobaud detection (See Baud Rate Automatic Detection Protocol, for more details). 0 Autobaud detection new features selected 1 Keep old autobaud detection mechanism The "new features" mechanism occasionally causes the receiver to get out of sync and continuously produces received characters of '0xff'. In order to reproduce the problem: $ cs0.baudrate=19200 - Change the terminal baudrate to 19200 - Type in the console and it should look good - Change the terminal baudrate back to 115200 - Type 'b' in the console, then a stream of '0xff' is transmitted in loop Setting the ADNIMP bit avoids the transmission of '0xff' in loop. Also rename the bit definition as per the reference manual. Tested on mx6q. Based on a patch from Eric Nelson for U-boot. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* console: Set Linux console parameter automaticallySascha Hauer2014-01-221-0/+1
| | | | | | | | | | | | | | | | | | | | | Linux specifies the linux,stdout-path property in the /chosen node in the devicetree. Unfortunately this is ignored in most cases. For cases in which barebox uses this property for its own use we translate this into a Linux boot arg with: - the console name provided by the serial driver - the the instance from the 'serial' alias - the baudrate from the actual baudrate. So with this it's for devicetee enabled boards no longer necessary to manually assign a console= parameter. Should a user not want to use the automatically assigned parameter it should do: global.linux.bootargs.console= in the environment. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: Add missing includesSascha Hauer2013-11-081-0/+1
| | | | | | | | A lot of files rely on include/driver.h including include/of.h (and this including include/errno.h. include the files explicitly so we can eventually get rid of including of.h from driver.h Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: do not set default baudrate at initJean-Christophe PLAGNIOL-VILLARD2013-09-221-1/+0
| | | | | | | this will be done at activation Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* console: drop f_caps and check the function pointer getc/putc insteadJean-Christophe PLAGNIOL-VILLARD2013-09-211-1/+0
| | | | | | | | | | None of the driver make the difference between STDOUT and STDERR. So we just need to check if putc or getc are filled in the console_device save 32 bytes on versatilepb Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Introduce console_platform_driver() macro and use it for serial driversAlexander Shiyan2013-03-141-8/+1
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial i.MX: Make locally used variables staticSascha Hauer2012-11-271-2/+2
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM i.MX: get rid of imx-regs.hSascha Hauer2012-10-171-1/+0
| | | | | | | | | - remove now unused __REG definitions - include individual SoC register files instead of imx-regs.h - move IMX_GPIO_NR to generic.h - finally remove imx-regs.h Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial i.MX: Use devtype data to determine uart versionSascha Hauer2012-10-051-43/+55
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/imx-clk'Sascha Hauer2012-10-041-6/+20
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| * ARM i.MX: Remove old clock supportSascha Hauer2012-10-041-1/+0
| | | | | | | | | | | | | | The old clock support is now unused. Remove it. The former i.MX clko command is superseeded by generic clock manipulation commands. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * serial i.MX: Switch to clk supportSascha Hauer2012-10-041-5/+20
| | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | switch all platform_bus device/driver registering to ↵Jean-Christophe PLAGNIOL-VILLARD2012-10-041-1/+1
|/ | | | | | | | platform_driver/device_register now register_driver and register_device are for bus only usage. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Merge branch 'for-next/remove-fsf-address'Sascha Hauer2012-10-031-3/+0
|\ | | | | | | | | | | Conflicts: drivers/net/miidev.c include/miidev.h
| * Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-171-3/+0
| | | | | | | | | | | | | | The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | serial i.MX: oftree supportSascha Hauer2012-09-171-2/+15
|/ | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial i.MX: i.MX6 supportSascha Hauer2012-04-241-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial imx: fix unregisterSascha Hauer2012-02-251-3/+5
| | | | | | | - Add missing console_unregister call - use dev->priv instead of dev->type_data Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* uart drivers: use xzalloc instead of xmallocSascha Hauer2011-12-231-1/+1
| | | | | | | | | | | | | | | | | | | The flags in struct console_device have to be initialized to zero. Otherwise the following can happen: - console_register sets the initial baudrate of a new console before we set the global console init state to CONSOLE_INIT_FULL. - In console_baudrate_set we test whether the current console is active which may be true because of unitialized flags. - we then call getc() to wait for the user to accept the new settings and we are stuck because of the CONSOLE_UNINITIALIZED state we will never get anything from getc(). Looking back this explains some cases for me when barebox refused to start and I really wonder why this did not become a more visible problem before. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* introduce io.hSascha Hauer2011-09-221-1/+1
| | | | | | | To allow for some generic io accessors introduce io.h and use this instead of asm/io.h throughout the tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: add support for the i.MX53Marc Kleine-Budde2011-07-291-1/+2
| | | | | Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial i.MX: convert to struct resourceSascha Hauer2011-07-191-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Fix error handling with malloc, memalign etc. Introduce xmemalign().Krzysztof Halasa2011-01-071-1/+1
| | | | | | | | | | | | | | The idea is to panic() when there is no memory available for normal operation. Exception: code which can consume arbitrary amount of RAM (example: files allocated in ramfs) must report error instead of panic(). This patch also fixes code which didn't check for NULL from malloc() etc. Usage: malloc(), memalign() return NULL when out of RAM. xmalloc(), xmemalign() always return non-NULL or panic(). Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX serial: sparse fixesSascha Hauer2010-10-211-42/+47
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* imx_serial: Add mx51 supportSascha Hauer2010-10-111-1/+2
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX serial: Use readl/writel instead of pointer derefSascha Hauer2010-06-241-66/+71
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machJean-Christophe PLAGNIOL-VILLARD2009-10-221-2/+2
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* imx serial: add mx25 supportSascha Hauer2009-09-081-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Get rid of DEVICE_TYPE_CONSOLE usageSascha Hauer2009-07-211-1/+0
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* imx serial driver: add input frequency change supportSascha Hauer2009-05-181-1/+28
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add Freescale i.MX21 supportIvo Clarysse2009-04-071-1/+1
| | | | | Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX serial driver: remove duplicated definesSascha Hauer2009-03-311-8/+3
| | | | | | | Also, the i.MX1 is the only one different, so change the #ifdef accordingly Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* imx serial driver: add flush supportSascha Hauer2009-03-191-3/+19
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX serial: Add mx35 supportSascha Hauer2009-02-061-3/+3
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX: introduce imx_get_uartclk functionSascha Hauer2009-01-131-1/+1
| | | | | | | | We need this function for MX35 support since the uart clock is not equal to perclk1 anymore. Uh, it's really time to implement some real clock API instead of this cruft. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* make it work with all current CPUsJuergen Beisert2007-10-181-2/+5
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