u-boot.git/drivers/gpio/Makefile, branch v2020.07

gpio/mpc83xx_spisel_boot.c: gpio driver for SPISEL_BOOT signal

2020-03-31T14:06:52Z

Some SoCs in the mpc83xx family, e.g. mpc8309, have a dedicated spi chip select, SPISEL_BOOT, that is used by the boot code to boot from flash. This chip select will typically be used to select a SPI boot flash. The SPISEL_BOOT signal is controlled by a single bit in the SPI_CS register. Implement a gpio driver for the spi chip select register. This allows a spi driver capable of using gpios as chip select, to bind a chip select to SPISEL_BOOT. It may be a little odd to do this as a GPIO driver, since the signal is neither GP or I, but it is quite convenient to present it to the spi driver that way. The alternative it to teach mpc8xxx_spi to handle the SPISEL_BOOT signal itself (that is how it's done in the linux kernel, see commit 69b921acae8a) Signed-off-by: Klaus H. Sorensen Signed-off-by: Rasmus Villemoes

gpio: Let DM_74X164 be built without CONFIG_SPL_GPIO

2020-02-09T13:52:39Z

Since commit bcee8d6764f9 ("dm: gpio: Allow control of GPIO uclass in SPL") CONFIG_DM_74X164 is no longer built for mx7dsabresd_defconfig, as this target does not use CONFIG_SPL_GPIO. Remove such dependency and let the the 74X164 GPIO driver be built again. This restores Ethernet functionality on the imx7-sdb board as the Ethernet reset PHY comes from a GPIO driven by a 74LV595PW I/O expander. Fixes: bcee8d6764f9 ("dm: gpio: Allow control of GPIO uclass in SPL") Signed-off-by: Fabio Estevam Reviewed-by: Tom Rini Tested-by: Alifer Moraes

gpio: cortina_gpio: add DM_GPIO driver for CAxxxx SoCs

2020-02-07T19:01:21Z

DM_GPIO based GPIO controller driver for CAxxxx SoCs. This driver support multiple CPU architectures and Cortina Access SoC platforms. Reviewed-by: Daniel Schwierzeck Signed-off-by: Jason Li Signed-off-by: Alex Nemirovsky

x86: Add a generic Intel GPIO driver

2019-12-15T03:44:25Z

Add a GPIO driver which uses the pinctrl driver to access the pad information. This driver relies on the GPIO nodes being subnodes to the pinctrl device. Signed-off-by: Simon Glass Reviewed-by: Bin Meng

dm: gpio: Allow control of GPIO uclass in SPL

2019-12-15T00:52:29Z

At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass is included in SPL/TPL without any control for boards. Some boards may want to disable this to reduce code size where GPIOs are not needed in SPL or TPL. Add a new Kconfig option to permit this. Default it to 'y' so that existing boards work correctly. Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to preserve the current behaviour. Also update the 74x164 GPIO driver since it cannot build with SPL. This allows us to remove the hacks in config_uncmd_spl.h and Makefile.uncmd_spl (eventually those files should be removed). Signed-off-by: Simon Glass Reviewed-by: Bin Meng

gpio: sifive: add support for DM based gpio driver for FU540-SoC

2019-10-18T01:04:01Z

This patch adds a DM based driver model for gpio controller present in FU540-C000 SoC on HiFive Unleashed A00 board. This SoC has one GPIO bank and 16 GPIO lines in total, out of which GPIO0 to GPIO9 and GPIO15 are routed to the J1 header on the board. This implementation is ported from linux based gpio driver submitted for review by Wesley W. Terpstra and/or Atish Patra (many thanks !!). The linux driver can be referred here [1] [1]: https://lkml.org/lkml/2018/10/9/1103 Signed-off-by: Sagar Shrikant Kadam Reviewed-by: Bin Meng

gpio: stm32: Rename stm32f7_gpio to stm32_gpio

2019-07-12T09:50:58Z

As this driver is used on stm32f4/f7/h7 and stm32mp1 SoCs, rename it with a more generic name. Signed-off-by: Patrice Chotard Reviewed-by: Patrick Delaunay

gpio: renesas: Add RZ/A1 R7S72100 GPIO driver

2019-05-07T03:41:32Z

Add GPIO driver for RZ/A1 SoC. The IP is very different from the R-Car Gen2/Gen3 one already present in the tree, hence a custom driver. Signed-off-by: Marek Vasut Cc: Chris Brandt Cc: Nobuhiro Iwamatsu

gpio: introduce CONFIG_SPL_DM_PCA953X

2019-01-28T19:35:47Z

Introduce CONFIG_SPL_DM_PCA953X for SPL usage. Signed-off-by: Peng Fan

mips: gpio: mscc: Obsoleted gpio-mscc-bitbang-spi.c

2019-01-16T12:56:43Z

With the new mscc_bb_spi.c driver, there is no longer use for the gpio-mscc-bitbang-spi.c driver. Signed-off-by: Lars Povlsen Reviewed-by: Daniel Schwierzeck