linux/arch/arm/mach-imx/lluart.c
Dirk Behme 785d7fab3e ARM: imx6: Add UART2 for low-level debug
To be able to enable early debugging on boards using the UART2 for the
console, add the option for early debugging on UART2.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-11 15:17:57 +08:00

38 lines
1,016 B
C

/*
* Copyright 2011 Freescale Semiconductor, Inc.
* Copyright 2011 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/init.h>
#include <asm/page.h>
#include <asm/sizes.h>
#include <asm/mach/map.h>
#include <mach/hardware.h>
static struct map_desc imx_lluart_desc = {
#ifdef CONFIG_DEBUG_IMX6Q_UART2
.virtual = MX6Q_IO_P2V(MX6Q_UART2_BASE_ADDR),
.pfn = __phys_to_pfn(MX6Q_UART2_BASE_ADDR),
.length = MX6Q_UART2_SIZE,
.type = MT_DEVICE,
#endif
#ifdef CONFIG_DEBUG_IMX6Q_UART4
.virtual = MX6Q_IO_P2V(MX6Q_UART4_BASE_ADDR),
.pfn = __phys_to_pfn(MX6Q_UART4_BASE_ADDR),
.length = MX6Q_UART4_SIZE,
.type = MT_DEVICE,
#endif
};
void __init imx_lluart_map_io(void)
{
if (imx_lluart_desc.virtual)
iotable_init(&imx_lluart_desc, 1);
}