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linux-next/arch/arm/mach-s3c64xx/common.h
Tomasz Figa 1db0287ab1 ARM: s3c64xx: Add support for DMA using generic amba-pl08x driver
This patch adds all required platform-specific data and initialization
code to support the generic amba-pl08x driver on S3C64xx SoCs.

Also some compatibility definitions are added to make the transition
from legacy API to DMA engine easier. The biggest hack here is passing
const char * pointers through DMA resource, casted to unsigned long,
but this is how Samsung DMA wrappers (used to support both s3c-dma and
DMA engine in drivers) are designed.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-11-24 14:38:24 +00:00

67 lines
1.7 KiB
C

/*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* Common Header for S3C64XX machines
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ARCH_ARM_MACH_S3C64XX_COMMON_H
#define __ARCH_ARM_MACH_S3C64XX_COMMON_H
#include <linux/reboot.h>
void s3c64xx_init_irq(u32 vic0, u32 vic1);
void s3c64xx_init_io(struct map_desc *mach_desc, int size);
void s3c64xx_restart(enum reboot_mode mode, const char *cmd);
void s3c64xx_init_late(void);
void s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
unsigned long xusbxti_f, bool is_s3c6400, void __iomem *reg_base);
void s3c64xx_set_xtal_freq(unsigned long freq);
void s3c64xx_set_xusbxti_freq(unsigned long freq);
#ifdef CONFIG_CPU_S3C6400
extern int s3c6400_init(void);
extern void s3c6400_init_irq(void);
extern void s3c6400_map_io(void);
#else
#define s3c6400_map_io NULL
#define s3c6400_init NULL
#endif
#ifdef CONFIG_CPU_S3C6410
extern int s3c6410_init(void);
extern void s3c6410_init_irq(void);
extern void s3c6410_map_io(void);
#else
#define s3c6410_map_io NULL
#define s3c6410_init NULL
#endif
#ifdef CONFIG_PM
int __init s3c64xx_pm_late_initcall(void);
#else
static inline int s3c64xx_pm_late_initcall(void) { return 0; }
#endif
#ifdef CONFIG_S3C64XX_PL080
extern struct pl08x_platform_data s3c64xx_dma0_plat_data;
extern struct pl08x_platform_data s3c64xx_dma1_plat_data;
#endif
#endif /* __ARCH_ARM_MACH_S3C64XX_COMMON_H */