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ARM: imx: new Kconfig symbol and feature test macro for DMA on mx1 and mx2 

This should be used instead of hard coding the corresponding platforms.
The feature test macro is needed to support different SOCs in a single
kernel image.  While at it rename dma-mx1-mx2 to dma-v1 as mx25 doesn't
use it and so the mx2 part is wrong and move the header to
arch/arm/mach-imx.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2010-06-14 17:56:52 +02:00
parent e780d2392d
commit 9f72ffedc8
6 changed files with 26 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/mach-imx/Kconfig
View File

@ -1,7 +1,11 @@
config IMX_HAVE_DMA_V1
bool
if ARCH_MX1
config SOC_IMX1
select CPU_ARM920T
select IMX_HAVE_DMA_V1
select IMX_HAVE_IOMUX_V1
bool
@ -27,12 +31,14 @@ if ARCH_MX2
config SOC_IMX21
select CPU_ARM926T
select ARCH_MXC_AUDMUX_V1
select IMX_HAVE_DMA_V1
select IMX_HAVE_IOMUX_V1
bool
config SOC_IMX27
select CPU_ARM926T
select ARCH_MXC_AUDMUX_V1
select IMX_HAVE_DMA_V1
select IMX_HAVE_IOMUX_V1
bool

2
arch/arm/mach-imx/Makefile
View File

@ -6,6 +6,8 @@
obj-y := devices.o
obj-$(CONFIG_IMX_HAVE_DMA_V1) += dma-v1.o
obj-$(CONFIG_ARCH_MX1) += clock-imx1.o mm-imx1.o
obj-$(CONFIG_MACH_MX21) += clock-imx21.o mm-imx21.o

4
arch/arm/plat-mxc/dma-mx1-mx2.c → arch/arm/mach-imx/dma-v1.c
View File

@ -1,5 +1,5 @@
/*
* linux/arch/arm/plat-mxc/dma-mx1-mx2.c
* linux/arch/arm/plat-mxc/dma-v1.c
*
* i.MX DMA registration and IRQ dispatching
*
@ -34,7 +34,7 @@
#include <asm/system.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <mach/dma-mx1-mx2.h>
#include <mach/dma-v1.h>
#define DMA_DCR 0x00 /* Control Register */
#define DMA_DISR 0x04 /* Interrupt status Register */

10
arch/arm/mach-imx/include/mach/dma-mx1-mx2.h Normal file
View File

@ -0,0 +1,10 @@
#ifndef __MACH_DMA_MX1_MX2_H__
#define __MACH_DMA_MX1_MX2_H__
/*
* Don't use this header in new code, it will go away when all users are
* converted to mach/dma-v1.h
*/
#include <mach/dma-v1.h>
#endif /* ifndef __MACH_DMA_MX1_MX2_H__ */

10
arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h → arch/arm/mach-imx/include/mach/dma-v1.h
View File

@ -1,5 +1,5 @@
/*
* linux/arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h
* linux/arch/arm/mach-imx/include/mach/dma-v1.h
*
* i.MX DMA registration and IRQ dispatching
*
@ -22,8 +22,10 @@
* MA 02110-1301, USA.
*/
#ifndef __ASM_ARCH_MXC_DMA_H
#define __ASM_ARCH_MXC_DMA_H
#ifndef __MACH_DMA_V1_H__
#define __MACH_DMA_V1_H__
#define imx_has_dma_v1() (cpu_is_mx1() || cpu_is_mx21() || cpu_is_mx27())
#define IMX_DMA_CHANNELS 16
@ -102,4 +104,4 @@ enum imx_dma_prio {
int imx_dma_request_by_prio(const char *name, enum imx_dma_prio prio);
#endif /* _ASM_ARCH_MXC_DMA_H */
#endif /* __MACH_DMA_V1_H__ */

2
arch/arm/plat-mxc/Makefile
View File

@ -8,8 +8,6 @@ obj-y := irq.o clock.o gpio.o time.o devices.o cpu.o system.o
# MX51 uses the TZIC interrupt controller, older platforms use AVIC (irq.o)
obj-$(CONFIG_MXC_TZIC) += tzic.o
obj-$(CONFIG_ARCH_MX1) += dma-mx1-mx2.o
obj-$(CONFIG_ARCH_MX2) += dma-mx1-mx2.o
obj-$(CONFIG_IMX_HAVE_IOMUX_V1) += iomux-v1.o
obj-$(CONFIG_ARCH_MXC_IOMUX_V3) += iomux-v3.o
obj-$(CONFIG_MXC_PWM) += pwm.o