Commit graph

63 commits

Author SHA1 Message Date
trem
e71c39def6 gpio: add gpio api support to mx27 (v4)
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>
2012-09-01 14:58:29 +02:00
Benoît Thébaudeau
5dafa4543c mxc: Make gpio_get_value() use PSR
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>
2012-09-01 14:58:28 +02:00
Allen Martin
00a2749d7b tegra20: rename tegra2 -> tegra20
This is make naming consistent with the kernel and devicetree and in
preparation of pulling out the common tegra20 code.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-09-01 14:58:21 +02:00
Stephen Warren
efad6cf881 ARM: add basic support for the Broadcom BCM2835 SoC
This SoC is used in the Raspberry Pi, for example.

For more details, see:
http://www.broadcom.com/products/BCM2835
http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf.

Initial support is enough to boot to a serial console, execute a minimal
set of U-Boot commands, download data over a serial port, and boot a
Linux kernel. No storage or network drivers are implemented.

GPIO driver originally by Vikram Narayanan <vikram186@gmail.com>
with many fixes from myself.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2012-09-01 14:58:21 +02:00
Mathieu J. Poirier
84dee301c3 snowball: Add support for ux500 based snowball board
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Acked-by: Tom Rini <trini@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

Conflicts:

	drivers/gpio/Makefile
2012-09-01 14:58:19 +02:00
Otavio Salvador
ddcf13b152 mxs: prefix register acessor macros with 'mxs' prefix
As the register accessing mode is the same for all i.MXS SoCs we ought
to use 'mxs' prefix intead of 'mx28'.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2012-09-01 14:58:17 +02:00
Marek Vasut
308252adaf dm: Move OMAP GPIO driver to drivers/gpio/
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: U-Boot DM <u-boot-dm@lists.denx.de>
Cc: Tom Rini <trini@ti.com>
Acked-by: Tom Rini <trini@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
2012-09-01 14:58:13 +02:00
Nobuhiro Iwamatsu
d764c5043d sh: Add support pin function control using GPIO
Renesas SH and R-Mobile set up device using PFC.
This provide the framework. Most codes were brought from linux kernel.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2012-08-08 10:24:41 +09:00
Stefan Roese
2cb06a4fda GPIO: Add SPEAr GPIO driver
Tested on x600 (SPEAr600).

Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:42 +02:00
Bo Shen
2b3b1c668b ATMEL/PIO: Enable new feature of PIO on Atmel device
Enable new PIO feature supported by Atmel SoC.
Using CPU_HAS_PIO3 micro to enable PIO new feature.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-07-07 14:07:30 +02:00
Tom Warren
52a8b82074 gpio: tegra2: rename tegra2_gpio.* to tegra_gpio.*
In anticipation of Tegra3 support, continue removing/renaming
Tegra2-specific files. No functional changes (yet).
Updated copyrights to 2012.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-07-07 14:07:20 +02:00
Timo Ketola
eba1868be4 i.MX25: This architecture has a GPIO4 too
Signed-off-by: Timo Ketola <timo@exertus.fi>
Acked-by: Stefano Babic <sbabic@denx.de>
2012-05-15 08:31:33 +02:00
Vikram Narayanan
d71c9c9fc0 imx: Return gpio_set_value in gpio_direction_output
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>
2012-04-16 14:53:59 +02:00
Vikram Narayanan
be28255462 imx: Use GPIO_TO_PORT macro in the gpio driver instead of (gpio >> 5)
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>
2012-04-16 14:53:59 +02:00
Vikram Narayanan
8d28c211f3 imx: Add GPIO_TO_PORT macro in the mxc_gpio driver
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>
2012-04-16 14:53:59 +02:00
Robert Delien
b228e14e96 Renamed mx28_register to mx28_register_32 to prepare for mx28_register_8
This patch renames mx28_register to mx28_register_32 in order to
prepare for the introduction of an 8-bit register, mx28_register_8.

Signed-off-by: Robert Delien <robert@delien.nl>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>
2012-03-26 23:09:24 +02:00
Simon Glass
8d30fcd9a1 sandbox: gpio: add basic driver for simulating GPIOs
This provides a way of simulating GPIOs by setting values which are seen
by the normal gpio_get/set_value() calls.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-12 11:03:42 -04:00
Joe Hershberger
4b56579388 mpc83xx: Add a GPIO driver for the MPC83XX family
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2012-01-09 20:10:33 -06:00
Joe Hershberger
365d607033 gpio: Replace ARM gpio.h with the common API in include/asm-generic
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>
2012-01-09 20:10:32 -06:00
Jason Liu
c8bfe24fec i.mx: mxc_gpio: add the i.mx6q support
Signed-off-by: Jason Liu <jason.hui@linaro.org>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
2011-12-09 17:30:10 +01:00
Stephen Warren
5fac236a97 tegra2: Use new GPIO APIs in gpio_config_uart()
... rather than open-coding the register accesses.

However, gpio_request() typically stores the "label" parameter in a global
data structure. This causes problems when called from gpio_config_uart(),
since the code is running before relocation. To solve this, pass a NULL
string to gpio_request(), and modify gpio_request() not to touch the string
if it's NULL.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-09 17:30:08 +01:00
Anatolij Gustschin
3da597dbde drivers/gpio/da8xx_gpio.c: Fix build warning
Fix:
da8xx_gpio.c: In function 'gpio_toggle_value':
da8xx_gpio.c:208:23: warning: variable 'bank' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-12-09 10:54:38 +01:00
Robert Deliën
5a42cd33d5 M28: Fix OB1 bug in GPIO driver
This patch fixes a small off-by-one bug in the GPIO driver for the mxs platform that allowed the selection gpio pins of one bank more than the SoC actually has.

Signed-off-by: Robert Deliën <robert at delien.nl>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-06 23:59:40 +01:00
Wolfgang Denk
f9342e2c3e Merge branch 'sr@denx.de' of git://git.denx.de/u-boot-staging
* 'sr@denx.de' of git://git.denx.de/u-boot-staging:
  Makefile: Add the missing dependency for spl target
  gpio: Adapt PCA9698 to standard GPIO API
2011-11-21 22:11:05 +01:00
Wolfgang Denk
c829ff2e3d Merge branch 'master' of git://git.denx.de/u-boot-nios
* 'master' of git://git.denx.de/u-boot-nios:
  nios2: Offer ft_board_setup() capability and call fdt_fixup_ethernet().
  board/nios2-generic: Use altera_pio driver and remove board specific driver
  gpio: Add driver for Altera's PIO core
  nios2: Pseudo implement dcache_status/enable/disable()
2011-11-21 22:00:37 +01:00
Dirk Eibach
042f9f1062 gpio: Adapt PCA9698 to standard GPIO API
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Stefan Roese <sr@denx.de>
2011-11-18 14:04:25 +01:00
Marek Vasut
6b6440def8 iMX28: Add GPIO control
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
2011-11-11 11:36:57 +01:00
Joachim Foerster
03d67e1276 gpio: Add driver for Altera's PIO core
This driver may handle multiple PIO cores and thus needs to be
setup by calling the altera_pio_init() function within the early
board setup routine.

The driver comes with some extras, see below the copyleft header.

Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>
Tested-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
2011-10-28 09:50:49 +08:00
Lei Wen
71f13a21dc gpio: mvmfp: reduce include platform file
Build pass with following config:
dkb_config
aspenite_config

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-27 21:56:33 +02:00
Lei Wen
a7efd719f4 ARM: kirkwood: reduce dependence of including platform file
For files like the drivers/serial/serial.c, it must include the
platform file, as the CONFIG_SYS_NS16550_COM1 must reference to the
definition in the platform definition files.

Include the platform definition file in the config file, so that it
would decouple the dependence for the driver files.

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-27 21:56:33 +02:00
Dirk Eibach
486cad03be gpio: Add PCA9698 40-bit I2C I/O port
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
2011-10-22 00:43:45 +02:00
Holger Brunck
e5afdf584c kw_gpio: fix error in kw_gpio_direction_input
The function kw_gpio_is_valid returns zero on success, so
adapt the error check accordingly.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Dieter Kiermaier <dk-arm-linux@gmx.de>
2011-10-17 22:25:33 +02:00
Ajay Bhargav
0c44229859 gpio: Add GPIO driver framework for Marvell SoCs
This patch adds generic GPIO driver framework support for Marvell SoCs.

To enable GPIO driver define CONFIG_MARVELL_GPIO and for GPIO commands
define CONFIG_CMD_GPIO in your board configuration file.

Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
2011-09-30 22:00:52 +02:00
Wolfgang Denk
04e5ae7931 Minor coding style cleanup.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-09-11 21:24:09 +02:00
Łukasz Majewski
9f15bc0c1c i2c:gpio:s5p: I2C GPIO Software implementation (via soft_i2c)
This patch adds support for software I2C for GONI and Universal C210 reference targets.
It adds support for access to GPIOs by number, not as it is present,
by bank and offset.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Cc: Heiko Schocher <hs@denx.de>
2011-09-04 11:36:15 +02:00
Stefano Babic
d8e0ca851b IMX: uniform GPIO interface using GPIO framework
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>
2011-09-04 11:36:11 +02:00
Łukasz Majewski
ef5d9eb925 gpio:samsung s5p_ suffix add for GPIO functions
This change is driven by need of general gpio_* functions,
which as their parameter are accepting the GPIO pin number, NOT
block and pin.

This makes the code alike to omap, and allows for using more
generic frameworks (e.g. software I2C).

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-09-03 22:40:47 +02:00
Laurence Withers
f517afd5df DA8xx: add generic GPIO driver
Add a generic GPIO driver for the DaVinci DA8xx processors. It is turned
on by defining CONFIG_DA8XX_GPIO and fulfills the generic GPIO interface
specified in <asm/gpio.h> . The driver has support for both manipulating
GPIO pins as well as automatically configuring the pin multiplexor
registers to set the pin function to GPIO.

Signed-off-by: Laurence Withers <lwithers@guralp.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-08-03 12:49:19 +02:00
Tom Warren
4e5ae09e56 GPIO: Tegra2: add GPIO driver for Tegra2
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-07-04 10:55:26 +02:00
Reinhard Meyer
86592f6059 AT91: change includes from asm/arch/io.h to asm/io.h
and remove the now unused asm/arch-at91/io.h

Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2011-05-18 07:56:51 +02:00
Reinhard Meyer
372f2783a7 AT91: fix related at91 driver files
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2011-05-18 07:56:51 +02:00
Fabio Estevam
e53bcd947d gpio: imx: Fix return value on error
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2011-05-11 23:03:15 +02:00
Stefano Babic
8627111543 IMX: MX31: Cleanup include files and drop nasty #ifdef in drivers
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>
2011-04-27 19:38:05 +02:00
Lei Wen
a03774ed88 mvmfp: add MFP configuration support for PANTHEON
This patch adds the Multiple Function Pin configuration support for
Marvell PANTHEON SoCs

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-02-21 08:30:55 +01:00
Liu Hui-R64343
01643ec180 mxc_gpio: add support for MX53 processor
This patch add mxc_gpio support for Freescale MX53 processor

Signed-off-by: Jason Liu <r64343@freescale.com>
2011-02-02 00:54:42 +01:00
Chris Packham
5dec49ca22 pca953x: support 16-pin devices
This adds support for for the PCA9535/PCA9539 family of gpio devices which
have 16 output pins.

To let the driver know which devices are 16-pin it is necessary to define
CONFIG_SYS_I2C_PCA953X_WIDTH in your board config file. This is used to
create an array of {chip, ngpio} tuples that are used to determine the
width of a particular chip. For backwards compatibility it is assumed that
any chip not defined in CONFIG_SYS_I2C_PCA953X_WIDTH has 8 pins.

Acked-by: Peter Tyser <ptyser@xes-inc.com>
Tested-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
2011-01-10 07:53:00 +01:00
Prafulla Wadaskar
e5f495d172 gpio: Add Multi-Function-Pin configuration driver for Marvell SoCs
Most of the Marvell SoCs has Multi Function Pin (MFP) configuration registers
For ex. ARMADA100.

These registers are programmed to expose the specific functionality
associated with respective SoC Pins

This driver provides configuration APIs,
using them, configuration need to be done in board specific code

for ex- following code configures MFPs 107 and 108 for UART_TX/RX functionality

int board_early_init_f(void)
{
        u32 mfp_cfg[] = {
                /* Console on UART1 */
                MFP107_UART1_RXD,
                MFP108_UART1_TXD,
                MFP_EOC         /*End of configureation*/
        };
        /* configure MFP's */
        mfp_config(mfp_cfg);
        return 0;
}

Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
2010-12-16 23:02:43 +01:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Stefano Babic
c4ea142424 Use common function to set GPIOs for MX3 and MX5
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>
2010-09-29 11:24:30 +02:00
Minkyu Kang
889a275d42 ARMV7: S5P: rename from CONFIG_S5PC1XX to CONFIG_S5P
Use the same configuration around S5P SoCs.
(s5pc100, s5pc110, s5pc210 and so on)

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2010-08-26 17:33:23 +09:00