Commit e317872a authored by dmitry pervushin's avatar dmitry pervushin Committed by Russell King
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[ARM] 5466/1: Freescale STMP platform support [5/10] 



Shared (platform) headers

Signed-off-by: default avatardmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 07d97143

arch/arm/plat-stmp3xxx/include/mach/clkdev.h

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/*

 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.

 *

 * 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

 */

#ifndef __ASM_MACH_CLKDEV_H

#define __ASM_MACH_CLKDEV_H



#define __clk_get(clk) ({ 1; })

#define __clk_put(clk) do { } while (0)



#endif

arch/arm/plat-stmp3xxx/include/mach/cputype.h

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/*

 * Freescale STMP37XX/STMP378X CPU type detection

 *

 * Embedded Alley Solutions, Inc <source@embeddedalley.com>

 *

 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.

 */



/*

 * 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

 */

#ifndef __ASM_PLAT_CPU_H

#define __ASM_PLAT_CPU_H



#ifdef CONFIG_ARCH_STMP37XX

#define cpu_is_stmp37xx()	(1)

#else

#define cpu_is_stmp37xx()	(0)

#endif



#ifdef CONFIG_ARCH_STMP378X

#define cpu_is_stmp378x()	(1)

#else

#define cpu_is_stmp378x()	(0)

#endif



#endif /* __ASM_PLAT_CPU_H */

arch/arm/plat-stmp3xxx/include/mach/debug-macro.S

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/*

 * Debugging macro include header

 *

 * Embedded Alley Solutions, Inc <source@embeddedalley.com>

 *

 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.

 */



/*

 * 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

 */



		.macro	addruart,rx

		mrc	p15, 0, \rx, c1, c0

		tst	\rx, #1			@ MMU enabled?

		moveq	\rx, #0x80000000	@ physical base address

		addeq	\rx, \rx, #0x00070000

		movne	\rx, #0xf0000000	@ virtual base

		addne	\rx, \rx, #0x00070000

		.endm



		.macro	senduart,rd,rx

		strb	\rd, [\rx, #0]		@ data register at 0

		.endm



		.macro	waituart,rd,rx

1001:		ldr	\rd, [\rx, #0x18]	@ UARTFLG

		tst	\rd, #1 << 5		@ UARTFLGUTXFF - 1 when full

		bne	1001b

		.endm



		.macro	busyuart,rd,rx

1001:		ldr	\rd, [\rx, #0x18]	@ UARTFLG

		tst	\rd, #1 << 3		@ UARTFLGUBUSY - 1 when busy

		bne	1001b

		.endm

arch/arm/plat-stmp3xxx/include/mach/dma.h

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/*

 * Freescale STMP37XX/STMP378X DMA helper interface

 *

 * Embedded Alley Solutions, Inc <source@embeddedalley.com>

 *

 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.

 */



/*

 * 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

 */

#ifndef __ASM_PLAT_STMP3XXX_DMA_H

#define __ASM_PLAT_STMP3XXX_DMA_H



#include <linux/platform_device.h>

#include <linux/dmapool.h>



#if !defined(MAX_PIO_WORDS)

#define MAX_PIO_WORDS   (15)

#endif



#define STMP3XXX_BUS_APBH	0

#define STMP3XXX_BUS_APBX	1

#define STMP3XXX_DMA_MAX_CHANNEL	16





#define STMP3xxx_DMA(channel, bus)  ((bus) * 16 + (channel))



#define MAX_DMA_ADDRESS		0xffffffff



#define MAX_DMA_CHANNELS	32



struct stmp3xxx_dma_command {

	u32 next;

	u32 cmd;

	union {

		u32 buf_ptr;

		u32 alternate;

	};

	u32 pio_words[MAX_PIO_WORDS];

};



struct stmp3xxx_dma_descriptor {

	struct stmp3xxx_dma_command *command;

	dma_addr_t handle;



	/* The virtual address of the buffer pointer */

	void *virtual_buf_ptr;

	/* The next descriptor in a the DMA chain (optional) */

	struct stmp3xxx_dma_descriptor *next_descr;

};



struct stmp37xx_circ_dma_chain {

	unsigned total_count;

	struct stmp3xxx_dma_descriptor *chain;



	unsigned free_index;

	unsigned free_count;

	unsigned active_index;

	unsigned active_count;

	unsigned cooked_index;

	unsigned cooked_count;



	int bus;

	unsigned channel;

};



static inline struct stmp3xxx_dma_descriptor

    *stmp3xxx_dma_circ_get_free_head(struct stmp37xx_circ_dma_chain *chain)

{

	return &(chain->chain[chain->free_index]);

}



static inline struct stmp3xxx_dma_descriptor

    *stmp3xxx_dma_circ_get_cooked_head(struct stmp37xx_circ_dma_chain *chain)

{

	return &(chain->chain[chain->cooked_index]);

}



int stmp3xxx_dma_request(int ch, struct device *dev, const char *name);

int stmp3xxx_dma_release(int ch);

int stmp3xxx_dma_allocate_command(int ch,

				  struct stmp3xxx_dma_descriptor *descriptor);

int stmp3xxx_dma_free_command(int ch,

			      struct stmp3xxx_dma_descriptor *descriptor);

void stmp3xxx_dma_continue(int channel, u32 semaphore);

void stmp3xxx_dma_go(int ch, struct stmp3xxx_dma_descriptor *head,

		     u32 semaphore);

int stmp3xxx_dma_running(int ch);

int stmp3xxx_dma_make_chain(int ch, struct stmp37xx_circ_dma_chain *chain,

			    struct stmp3xxx_dma_descriptor descriptors[],

			    unsigned items);

void stmp3xxx_dma_free_chain(struct stmp37xx_circ_dma_chain *chain);

void stmp37xx_circ_clear_chain(struct stmp37xx_circ_dma_chain *chain);

void stmp37xx_circ_advance_free(struct stmp37xx_circ_dma_chain *chain,

		unsigned count);

void stmp37xx_circ_advance_active(struct stmp37xx_circ_dma_chain *chain,

		unsigned count);

unsigned stmp37xx_circ_advance_cooked(struct stmp37xx_circ_dma_chain *chain);

int stmp3xxx_dma_read_semaphore(int ch);

void stmp3xxx_dma_init(void);

void stmp3xxx_dma_set_alt_target(int ch, int target);

void stmp3xxx_dma_suspend(void);

void stmp3xxx_dma_resume(void);



/*

 * STMP37xx and STMP378x have different DMA control

 * registers layout

 */



void stmp3xxx_arch_dma_freeze(int ch);

void stmp3xxx_arch_dma_unfreeze(int ch);

void stmp3xxx_arch_dma_reset_channel(int ch);

void stmp3xxx_arch_dma_enable_interrupt(int ch);

void stmp3xxx_arch_dma_clear_interrupt(int ch);

int stmp3xxx_arch_dma_is_interrupt(int ch);



static inline void stmp3xxx_dma_reset_channel(int ch)

{

	stmp3xxx_arch_dma_reset_channel(ch);

}





static inline void stmp3xxx_dma_freeze(int ch)

{

	stmp3xxx_arch_dma_freeze(ch);

}



static inline void stmp3xxx_dma_unfreeze(int ch)

{

	stmp3xxx_arch_dma_unfreeze(ch);

}



static inline void stmp3xxx_dma_enable_interrupt(int ch)

{

	stmp3xxx_arch_dma_enable_interrupt(ch);

}



static inline void stmp3xxx_dma_clear_interrupt(int ch)

{

	stmp3xxx_arch_dma_clear_interrupt(ch);

}



static inline int stmp3xxx_dma_is_interrupt(int ch)

{

	return stmp3xxx_arch_dma_is_interrupt(ch);

}



#endif /* __ASM_PLAT_STMP3XXX_DMA_H */

arch/arm/plat-stmp3xxx/include/mach/gpio.h

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/*

 * Freescale STMP37XX/STMP378X GPIO interface

 *

 * Embedded Alley Solutions, Inc <source@embeddedalley.com>

 *

 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.

 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.

 */



/*

 * 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

 */

#ifndef __ASM_PLAT_GPIO_H

#define __ASM_PLAT_GPIO_H



#define ARCH_NR_GPIOS	(32 * 3)

#define gpio_to_irq(gpio) __gpio_to_irq(gpio)

#define gpio_get_value(gpio) __gpio_get_value(gpio)

#define gpio_set_value(gpio, value) __gpio_set_value(gpio, value)



#include <asm-generic/gpio.h>



#endif /* __ASM_PLAT_GPIO_H */