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Copied the GPIO configurator written for the Linux kernel.
The Nomadik db8500 GPIO driver. Purpose is to be able
to just cut-n-paste the GPIO config from Linux to U-boot.
Also at the same time remove the obsolete and old
gpio_alt_funcenable/disable methods.
Now all is configured using a table in u8500.c.
Now drivers doesn't have to worry about setting up the GPIO pins.
Actually no driver today uses GPIO pins directly, only via
hardware blocks within db8500. Functions are still added
to be able to interact directly with a GPIO pin. This also
cleaned up a lot of driver by not having to bit manipulate GPIO
registers them self.
The new driver is called db8500_gpio and placed in driver/gpio/.
Functions are in include/db8500_gpio.h:
void db8500_gpio_set_pull(unsigned gpio, enum db8500_gpio_pull pull);
void db8500_gpio_make_input(unsigned gpio);
int db8500_gpio_get_input(unsigned gpio);
void db8500_gpio_make_output(unsigned gpio, int val);
void db8500_gpio_set_output(unsigned gpio, int val);
And for the configurator in include/db8500_pincfg.h:
void db8500_gpio_config_pins(pin_cfg_t *cfgs, size_t num);
All in all the final binary size has decreased.
This is only done for db8500 nomadik GPIO. The code for gpio
expanders has not been touched.
All references to Nomadik has been removed in this driver.
Only db8500 is left.
ST-Ericsson ID: None
Signed-off-by: Joakim Axelsson <joakim.axelsson@stericsson.com>
Change-Id: I90aa1d46c813ffb5a777c3492b5751f5054f71cf
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/9904
Reviewed-by: QATOOLS
Reviewed-by: Michael BRANDT <michael.brandt@stericsson.com>
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Add a simple driver for the I2C-controlled TC35892 GPIO
expander.
Change-Id: I49389d808353ca6b43cc38e1c7518de38f14ef51
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/1047
Reviewed-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
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Signed-off-by: Dieter Kiermaier <dk-arm-linux@gmx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Tested-by: Heiko Schocher <hs@denx.de>
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Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.
Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.
This patch cleans this up - for example:
Before:
=> help dtt
dtt - Digital Thermometer and Thermostat
Usage:
dtt - Read temperature from digital thermometer and thermostat.
After:
=> help dtt
dtt - Read temperature from Digital Thermometer and Thermostat
Usage:
dtt
Signed-off-by: Wolfgang Denk <wd@denx.de>
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This is a minimal driver, so far only managing output. It will
be used by the mxc_spi.c driver.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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Initial support for NXP's 4 and 8 bit I2C gpio expanders
(eg pca9537, pca9557, etc). The CONFIG_PCA953X define
enables support for the devices while the CONFIG_CMD_PCA953X
define enables the pca953x command. The CONFIG_CMD_PCA953X_INFO
define enables an 'info' sub-command which provides summary
information for the given pca953x device.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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