summaryrefslogtreecommitdiffstats
path: root/drivers/serial
Commit message (Collapse)AuthorAgeFilesLines
* serial: ns16550: provide big-endian supportOleksij Rempel2017-09-081-2/+17
| | | | | | | we need it at least for QCA AR9344 Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: ns16550: emit an error message if getting the clock failsUwe Kleine-König2017-06-191-0/+1
| | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* sandbox: fix registering multiple consolesAleksander Morgado2017-06-011-0/+3
| | | | | | | | | | | | | | | | | | Consoles need to be registered with the "console" device name so that they are probed by the correct driver. The barebox_register_console() was already forcing this as it was overwriting the name that was being passed as argument, but it was failing to provide a unique id for each new console, so the underlying register_device() would just return an error when wanting to re-register a device with device name "console" and id 0. We remove the unused name parameter from barebox_register_console() as it is really nowhere used, and also specify DEVICE_ID_DYNAMIC as id, so that a new unique device id is given to each newly registered console device. Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: atmel: Add DT compatibility tableAndrey Smirnov2017-03-301-0/+7
| | | | | | Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/efi'Sascha Hauer2017-03-134-2/+228
|\
| * efi: add serial driver supportJean-Christophe PLAGNIOL-VILLARD2017-03-093-0/+226
| | | | | | | | | | | | | | | | | | | | | | | | | | | | So now we can stop to use the efi-stdio as this driver print on the Framebuffer and the serial at the same time. This is specially usefull if we want to use the framebuffer via efi-gop for something else. Do not forget to disable the efi-stdio device before enabling the console otherwise you will get double printing. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * efi: move x86 efi boot support to x86 archJean-Christophe PLAGNIOL-VILLARD2017-02-271-1/+1
| | | | | | | | | | | | | | prepare to drop the efi arch as efi boot up is not arch sepecific Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * efi: move bus driver to driver/efiJean-Christophe PLAGNIOL-VILLARD2017-02-241-1/+1
| | | | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | serial: atmel: Check result of clk_get()Andrey Smirnov2017-03-091-0/+5
|/ | | | | Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/imx'Sascha Hauer2017-02-131-0/+4
|\
| * 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>
* | Merge branch 'for-next/efi'Sascha Hauer2017-02-131-1/+2
|\ \
| * | serial: efi: improve input handlingMichael Olbrich2017-01-241-1/+2
| |/ | | | | | | | | | | | | | | | | 0x08 is the scan-code for 'backspace' not 'delete'. 0x17 indicates the start of an escape sequence, such as "[3~" for 'delete'. Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / serial: ns16550: Set read/write functions depending on reg-io-widthWadim Egorov2017-02-101-0/+19
|/ | | | | | | | Set proper register read/write functions depending on reg-io-width device tree property. Signed-off-by: Wadim Egorov <w.egorov@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX: Add 'lpuart' serial driverAndrey Smirnov2017-01-113-0/+223
| | | | | | | Add 'lpuart' serial driver, based on analogous driver from U-Boot Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> 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>
* serial: arm_dcc: depend on !CPU_V8Lucas Stach2016-10-041-1/+1
| | | | | | | | The DCC console uses coprocessor registers registers accesses, the implementation of those for ARMv8 is currently missing. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/include-pdata'Sascha Hauer2016-05-091-1/+1
|\
| * include: Move ns16550 serial platform_data to include/platform_dataSascha Hauer2016-04-151-1/+1
| | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | serial_auart: make dt awareUwe Kleine-König2016-04-271-0/+9
|/ | | | | | | | This allows to instantiate devices from an oftree and so allows to select the console using /chosen/stdout-path. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/driver'Sascha Hauer2016-03-1114-26/+70
|\
| * driver: replace dev_request_mem_region with dev_request_mem_resourceSascha Hauer2016-03-0714-26/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: ns16550: Set linux_console_nameSascha Hauer2015-08-261-0/+2
| | | | | | | The regular ns16450/ns16550 devices get the console name "ttyS" under Linux. Add this to the driver data. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* PPC/MPC52xx: unify header file name for clock APIJuergen Borleis2015-08-031-1/+1
| | | | | | | | In preparation to re-use the i.MX I2C driver for the MPC5200 SoC use clock.h instead of clocks.h for the clock API. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* serial: ns16550: Fix reading clock-frequency propertySascha Hauer2015-06-261-7/+2
| | | | | | | | | The clock-frequency property is never read because the driver bails out earlier when it is unable to clk_get the clk. Move the clock-frequency read out to the dt setup code which is executed before the driver bails out due to the missing clk. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2015-06-091-2/+2
|\
| * Abolish cpu_read* and cpu_write* accessorsMasahiro Yamada2015-05-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 2e6a88f2101d (add cpu native ordered io accessors) introduced these macros and then commit be57f20cdd7d (Fix big endian MMIO primitives) figured out they are equivalent to __raw_{read,write}*. They turned out unnecessary after all. Anyway, most source files use __raw_read* and __raw_write*. Let's replace a few remaining references and abolish them. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 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 Pavlov2015-04-303-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Merge branch 'for-next/raspberry-pi'Sascha Hauer2015-02-041-0/+11
|\
| * amba: pl011: add support for regulatorJean-Christophe PLAGNIOL-VILLARD2015-02-041-0/+11
| | | | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/mxs'Sascha Hauer2015-02-041-0/+9
|\ \
| * | serial: stm_serial: Add devicetree supportSascha Hauer2015-01-281-0/+9
| |/ | | | | | | | | | | | | | | | | | | This adds device tree support for the stm serial driver. This driver really is a AMBA primecell, so the amba-pl011 could be used. However, the current code tries to get the apb_pclk before the clocks are registered, so this does not work. Use the stm driver instead until a solution is found. 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>
* Merge branch 'for-next/mxs'Sascha Hauer2015-01-092-2/+0
|\
| * drivers: remove unnecessary mach/imx-regs.h includeSascha Hauer2015-01-052-2/+0
| | | | | | | | | | | | And replace the ones needed with the SoC specific header. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | driver: workaroud resource request that conflicts with errno PTRJean-Christophe PLAGNIOL-VILLARD2015-01-081-3/+3
|/ | | | | | | | | | | | | | | | broken since commit ed6e965824303255cacc1c1a195d3684caa26bce Author: Sascha Hauer <s.hauer@pengutronix.de> resource: Let dev_request_mem_region return an error pointer Introduce dev_request_mem_region_err_null only used on platform like at91 where the resource address conflicts with errno PTR. 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>
* Merge branch 'for-next/tegra'Sascha Hauer2014-11-051-0/+12
|\
| * serial: ns16550: add Tegra supportLucas Stach2014-11-041-0/+11
| | | | | | | | | | Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * serial: ns16550: enable clock if availableLucas Stach2014-11-041-0/+1
| | | | | | | | | | Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | serial: ns16550: Remove unused fields from NS16550_plat structureAlexander Shiyan2014-11-031-4/+1
|/ | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* resource: Let request_ioport_region return an error pointerSascha Hauer2014-09-161-2/+2
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* resource: Let dev_request_mem_region return an error pointerSascha Hauer2014-09-167-2/+17
| | | | | | For all users fix or add the error check. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* resource: Let dev_get_mem_region return an error pointerSascha Hauer2014-09-161-0/+2
| | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
* resource: Let dev_get_resource return an error pointerSascha Hauer2014-09-161-4/+4
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 22:25:47 +0000