lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

MXC arch: Add gpio support for the whole platform

Browse Source 
This patch bases on the one from Daniel Mack. The most important change to
Daniel's patch is to be more generic. This gpio routine supports at least
the i.MX27 and i.MX31 processors.

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Acked-by: Daniel Mack <daniel@caiaq.de>
This commit is contained in:
Juergen Beisert
2008-07-05 10:02:49 +02:00
committed by Robert Schwebel
parent e3d13ff4b9
commit 07bd1a6cc7
8 changed files with 348 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
arch/arm/mach-mx3/devices.c
View File

@ -20,6 +20,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/gpio.h>
#include <asm/hardware.h>
#include <asm/arch/imx-uart.h>
@ -151,3 +152,29 @@ int __init imx_init_uart(int uart_no, struct imxuart_platform_data *pdata)
return 0;
}
/* GPIO port description */
static struct mxc_gpio_port imx_gpio_ports[] = {
[0] = {
.chip.label = "gpio-0",
.base = IO_ADDRESS(GPIO1_BASE_ADDR),
.irq = MXC_INT_GPIO1,
.virtual_irq_start = MXC_GPIO_INT_BASE
},
[1] = {
.chip.label = "gpio-1",
.base = IO_ADDRESS(GPIO2_BASE_ADDR),
.irq = MXC_INT_GPIO2,
.virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN
},
[2] = {
.chip.label = "gpio-2",
.base = IO_ADDRESS(GPIO3_BASE_ADDR),
.irq = MXC_INT_GPIO3,
.virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN * 2
}
};
int __init mxc_register_gpios(void)
{
return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
}