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path: root/drivers/gpio/mxc_gpio.c
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2019-01-01imx: rename mx8m,MX8M to imx8m,IMX8MPeng Fan1-9/+9
Rename mx8m,MX8M to imx8m,IMX8M Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Jon Nettleton <jon@solid-run.com>
2018-10-22gpio: mxc_gpio: add support for i.MX8Peng Fan1-9/+21
Add i.MX8 support, there are 8 GPIO banks. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Anatolij Gustschin <agust@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini1-2/+1
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini1-2/+0
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-02-04gpio: mxc: add i.MX8M supportPeng Fan1-7/+15
Add i.MX8M GPIO support. There are 4 GPIO banks on i.MX8M. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2018-01-04mx6ull: Handle the CONFIG_MX6ULL cases correctlyFabio Estevam1-2/+2
Since commit 051ba9e082f7 ("Kconfig: mx6ull: Deselect MX6UL from CONFIG_MX6ULL") CONFIG_MX6ULL does not select CONFIG_MX6UL anymore, so take this into consideration in all the checks for CONFIG_MX6UL. This fixes a boot regression. Reported-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Stefan Agner <stefan@agner.ch> Tested-by: Breno Lima <breno.lima@nxp.com> Tested-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de> Tested-by: Jörg Krause <joerg.krause@embedded.rocks>
2017-10-09dm: gpio: Correct use of -ENODEV in driversSimon Glass1-1/+1
In U-Boot -ENODEV means that there is no device. When there is a problem with the device, drivers should return an error like -ENXIO or -EREMOTEIO. When the device tree properties cannot be read correct , they should return -EINVAL. Update various GPIO drivers to follow this rule, to help with consistency for future driver writers. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Adam Ford <aford173@gmail.com>
2017-10-09dm: gpio: Add a comment about not copying some driversSimon Glass1-0/+5
These three drivers all use U_BOOT_DEVICE rather than device tree to create devices, so have to do manual allocation of platform data. This is not true for new platforms. Add a more explicit comment so that people do not copy this approach with new boards. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Adam Ford <aford173@gmail.com>
2017-06-01dm: Rename dev_addr..() functionsSimon Glass1-1/+1
These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02imx: mxc_gpio: add support for imx7d SoCAdrian Alonso1-3/+5
* Add mxc_gpio support for imx7d SoC * Use CONFIG_MX7 to extend mxc gpio driver support for imx7d Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Signed-off-by: Adrian Alonso <aalonso@freescale.com>
2015-08-18of: clean up OF_CONTROL ifdef conditionalsMasahiro Yamada1-1/+1
We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear away the ugly logic in include/fdtdec.h: #ifdef CONFIG_OF_CONTROL # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL) # define OF_CONTROL 0 # else # define OF_CONTROL 1 # endif #else # define OF_CONTROL 0 #endif Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for SPL. Also, we no longer have to cancel CONFIG_OF_CONTROL in include/config_uncmd_spl.h and scripts/Makefile.spl. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-02mxc: gpio add i.MX6UL supportPeng Fan1-0/+4
i.MX6UL does not have GPIO6/7, so do not include them for i.MX6UL. Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
2015-04-17dm: core: Add dev_get_uclass_priv() to access uclass private dataSimon Glass1-1/+1
Add a convenience function to access the private data that a uclass stores for each of its devices. Convert over most existing uses for consistency and to provide an example for others. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-02-13dm:gpio:mxc add DT supportPeng Fan1-17/+64
This patch add DT support for mxc gpio driver. There are one place using CONFIG_OF_CONTROL macro. 1. The U_BOOT_DEVICES and mxc_plat array are complied out. To DT, platdata is alloced using calloc, so there is no need to use mxc_plat. The following situations are tested, and all work fine: 1. with DM, without DT 2. with DM and DT 3. without DM Since device tree has not been upstreamed, if want to test this patch. The followings need to be done. + pieces of code does not gpio_request when using gpio_direction_xxx and etc, need to request gpio. + move the gpio settings from board_early_init_f to board_init + define CONFIG_DM ,CONFIG_DM_GPIO and CONFIG_OF_CONTROL + Add device tree file and do related configuration in `make ARCH=arm menuconfig` These will be done in future patches by step. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Simon Glass <sjg@chromium.org>
2015-02-13dm:gpio:mxc add a bank_index entry in platdataPeng Fan1-8/+9
Add a new entry in platdata structure and intialize bank_index in mxc_plat array. This new entry can avoid using `plat - mxc_plat` by using `plat->bank_index`. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Simon Glass <sjg@chromium.org>
2014-10-24dm: gpio: imx: Drop request()/free() in the driverSimon Glass1-116/+0
Now that the uclass supports gpio_request/free() there is no need for the driver to implement it too. Drop this unnecessary code. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22dm: imx: gpio: Support driver model in MXC gpio driverSimon Glass1-1/+303
Add driver model support with this driver. In this case the platform data is in the driver. It would be better to put this into an SOC-specific file, but this is best attempted when more boards are moved over to use driver model. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2013-07-31Merge git://git.denx.de/u-boot-armStefano Babic1-17/+1
Conflicts: board/freescale/mx6qsabrelite/Makefile board/freescale/mx6qsabrelite/mx6qsabrelite.c include/configs/mx6qsabrelite.h Signed-off-by: Stefano Babic <sbabic@denx.de>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk1-17/+1
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24mxc_gpio: Correct the GPIO handling in gpio_direction_output()Dirk Behme1-2/+2
Setting the direction and an output value should be done by First, set the desired output value. Then, switch to output. If this is done in the inverse order, like at the moment, there can be a glitch on the GPIO line while switching first the old output value and aftwards the new one. Fix this by inverting the order of the direction/set_value calls. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Stefano Babic <sbabic@denx.de>
2012-11-10mx6: use CONFIG_MX6 instead of CONFIG_MX6QTroy Kisky1-3/+3
Use CONFIG_MX6 when the particular processor variant isn't important. Reserve the use of CONFIG_MX6Q to specifically test for quad cores variant. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
2012-09-01gpio: add gpio api support to mx27 (v4)trem1-3/+5
The gpio api has been tested on an armadeus apf27. Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr> Acked-by: Stefano Babic <sbabic@denx.de>
2012-09-01mxc: Make gpio_get_value() use PSRBenoît Thébaudeau1-1/+1
gpio_get_value() should use PSR like Linux, not DR, because DR does not always reflect the pin state, while PSR does. This is especially useful to detect a short circuit on a GPIO pin configured as output, or to read the level of a pin controlled by a non-GPIO IOMUX function. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
2012-05-15i.MX25: This architecture has a GPIO4 tooTimo Ketola1-1/+2
Signed-off-by: Timo Ketola <timo@exertus.fi> Acked-by: Stefano Babic <sbabic@denx.de>
2012-04-16imx: Return gpio_set_value in gpio_direction_outputVikram Narayanan1-2/+1
Return gpio_set_value in gpio_direction_output. Earlier it returned 0 and ignored gpio_set_value's return value. Signed-off-by: Vikram Narayanan <vikram186@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de>
2012-04-16imx: Use GPIO_TO_PORT macro in the gpio driver instead of (gpio >> 5)Vikram Narayanan1-4/+4
Use the defined GPIO_TO_PORT macro. Remove gpio >> 5 references. Signed-off-by: Vikram Narayanan <vikram186@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de>
2012-04-16imx: Add GPIO_TO_PORT macro in the mxc_gpio driverVikram Narayanan1-0/+1
Add GPIO_TO_PORT macro in the mxc_gpio.c driver Signed-off-by: Vikram Narayanan <vikram186@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de>
2012-01-10gpio: Replace ARM gpio.h with the common API in include/asm-genericJoe Hershberger1-22/+20
ARM boards should use the generic GPIO API This means changing gpio to unsigned type Remove the unused gpio_toggle() function which is not part of the API Comment that free should not modify pin state Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Cc: Joe Hershberger <joe.hershberger@gmail.com> fixed merge conflict in da8xx_gpio.c, tegra2_gpio.c, and extended to the new mxs_gpio.c. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-12-09i.mx: mxc_gpio: add the i.mx6q supportJason Liu1-2/+2
Signed-off-by: Jason Liu <jason.hui@linaro.org> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
2011-09-04IMX: uniform GPIO interface using GPIO frameworkStefano Babic1-4/+47
IMX processors has a slightly different interface to access GPIOs and do not make use of the provided GPIO framework. The patch substitutes mxc_ specific functions and make use of the API in asm/gpio.h Signed-off-by: Stefano Babic <sbabic@denx.de>
2011-05-12gpio: imx: Fix return value on errorFabio Estevam1-2/+3
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2011-04-27IMX: MX31: Cleanup include files and drop nasty #ifdef in driversStefano Babic1-5/+0
As exception among the i.MX processors, the i.MX31 has headers without general names (mx31-regs.h, mx31.h instead of imx-regs.h and clock.h). This requires several nasty #ifdef in the drivers to include the correct header. The patch cleans up the driver and renames the header files as for the other i.MX processors. Signed-off-by: Stefano Babic <sbabic@denx.de>
2011-02-02mxc_gpio: add support for MX53 processorLiu Hui-R643431-2/+7
This patch add mxc_gpio support for Freescale MX53 processor Signed-off-by: Jason Liu <r64343@freescale.com>
2010-09-29Use common function to set GPIOs for MX3 and MX5Stefano Babic1-0/+107
The patch adds support for setting gpios to the MX51 processor and change name to the corresponding functions for MX31. In this way, it is possible to get rid of nasty #ifdef switches related to the processor type. Signed-off-by: Stefano Babic <sbabic@denx.de>
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