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| author | Zhang Jiejing <jiejing.zhang@freescale.com> | 2012-05-18 11:08:05 +0800 |
|---|---|---|
| committer | Zhang Jiejing <jiejing.zhang@freescale.com> | 2012-05-21 09:50:11 +0800 |
| commit | 500e69df9073a8bc2773274c1139bb036b1a4195 (patch) | |
| tree | 0aa8fd108e80d33af583382948c3a8fc774d3c92 /drivers/gpio | |
| parent | 9b6dfc4b6f0d30b7284511a962e64e83c426b854 (diff) | |
| download | u-boot-imx-500e69df9073a8bc2773274c1139bb036b1a4195.zip u-boot-imx-500e69df9073a8bc2773274c1139bb036b1a4195.tar.gz u-boot-imx-500e69df9073a8bc2773274c1139bb036b1a4195.tar.bz2 | |
ENGR00209899-1 mx6x: add generic gpio interface.
Add generic gpio interface in uboot.
Seems more and more gpio operation invoke in uboot,
without RAW register operation, we should
use generic gpio interface.
you should define the CONFIG_MXC_GPIO
use generic gpio interface:
gpio_request,
gpio_direction_output,
gpio_direction_input,
gpio_set_value,
gpio_get_value, etc.
Test on MX6Q, MX6DL.
Other MX6X should also define this config.
Signed-off-by: Zhang Jiejing <jiejing.zhang@freescale.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpio/mxc_gpio.c | 10 |
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index acba56c..d07225d 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -28,6 +28,7 @@ LIB := $(obj)libgpio.a COBJS-$(CONFIG_KIRKWOOD_GPIO) += kw_gpio.o COBJS-$(CONFIG_MX31_GPIO) += mx31_gpio.o COBJS-$(CONFIG_PCA953X) += pca953x.o +COBJS-$(CONFIG_MXC_GPIO) += mxc_gpio.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c index a7f36b2..dde079f 100644 --- a/drivers/gpio/mxc_gpio.c +++ b/drivers/gpio/mxc_gpio.c @@ -25,9 +25,9 @@ */ #include <common.h> #include <asm/arch/imx-regs.h> -#include <asm/gpio.h> +#include <asm/arch/gpio.h> #include <asm/io.h> -#include <errno.h> +#include <asm/errno.h> enum mxc_gpio_direction { MXC_GPIO_DIRECTION_IN, @@ -40,14 +40,14 @@ static unsigned long gpio_ports[] = { [0] = GPIO1_BASE_ADDR, [1] = GPIO2_BASE_ADDR, [2] = GPIO3_BASE_ADDR, -#if defined(CONFIG_MX51) || defined(CONFIG_MX53) +#if defined(CONFIG_MX51) || defined(CONFIG_MX53) || defined(CONFIG_MX6Q) || defined(CONFIG_MX6DL) [3] = GPIO4_BASE_ADDR, -#endif -#if defined(CONFIG_MX53) +#if !defined(CONFIG_MX51) [4] = GPIO5_BASE_ADDR, [5] = GPIO6_BASE_ADDR, [6] = GPIO7_BASE_ADDR, #endif +#endif }; static int mxc_gpio_direction(unsigned int gpio, |