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Commit e1981680 authored by Ben Dooks's avatar Ben Dooks Committed by Russell King
Browse files

[ARM] 3326/1: H1940 - Control latches 



Patch from Ben Dooks

Define the bits for the two board control latches
that control various items on the H1940 iPAQ.

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
Signed-off-by: default avatarArnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent b514d319

arch/arm/mach-s3c2410/mach-h1940.c

+27 −2
Original line number Diff line number Diff line
@@ -46,10 +46,11 @@ 
#include <asm/irq.h>

#include <asm/mach-types.h>



//#include <asm/debug-ll.h>



#include <asm/arch/regs-serial.h>

#include <asm/arch/regs-lcd.h>



#include <asm/arch/h1940-latch.h>

#include <asm/arch/fb.h>



#include <linux/serial_core.h>
@@ -59,7 +60,12 @@ 
#include "cpu.h"



static struct map_desc h1940_iodesc[] __initdata = {

	/* nothing here yet */

	[0] = {

		.virtual	= (unsigned long)H1940_LATCH,

		.pfn		= __phys_to_pfn(H1940_PA_LATCH),

		.length		= SZ_16K,

		.type		= MT_DEVICE

	},

};



#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
@@ -92,6 +98,25 @@ static struct s3c2410_uartcfg h1940_uartcfgs[] = { 
	}

};



/* Board control latch control */



static unsigned int latch_state = H1940_LATCH_DEFAULT;



void h1940_latch_control(unsigned int clear, unsigned int set)

{

	unsigned long flags;



	local_irq_save(flags);



	latch_state &= ~clear;

	latch_state |= set;



	__raw_writel(latch_state, H1940_LATCH);



	local_irq_restore(flags);

}



EXPORT_SYMBOL_GPL(h1940_latch_control);





/**

include/asm-arm/arch-s3c2410/h1940-latch.h

0 → 100644
+64 −0
Original line number Diff line number Diff line 
/* linux/include/asm-arm/arch-s3c2410/h1940-latch.h

 *

 * (c) 2005 Simtec Electronics

 *	http://armlinux.simtec.co.uk/

 *	Ben Dooks <ben@simtec.co.uk>

 *

 *  iPAQ H1940 series - latch definitions

 *

 * 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 __ASM_ARCH_H1940_LATCH_H

#define __ASM_ARCH_H1940_LATCH_H





#ifndef __ASSEMBLY__

#define H1940_LATCH		((void __iomem *)0xF8000000)

#else

#define H1940_LATCH		0xF8000000

#endif



#define H1940_PA_LATCH		(S3C2410_CS2)



/* SD layer latch */



#define H1940_LATCH_SDQ1		(1<<16)

#define H1940_LATCH_LCD_P1		(1<<17)

#define H1940_LATCH_LCD_P2		(1<<18)

#define H1940_LATCH_LCD_P3		(1<<19)

#define H1940_LATCH_MAX1698_nSHUTDOWN	(1<<20)		/* LCD backlight */

#define H1940_LATCH_LED_RED		(1<<21)

#define H1940_LATCH_SDQ7		(1<<22)

#define H1940_LATCH_USB_DP		(1<<23)



/* CPU layer latch */



#define H1940_LATCH_UDA_POWER		(1<<24)

#define H1940_LATCH_AUDIO_POWER		(1<<25)

#define H1940_LATCH_SM803_ENABLE	(1<<26)

#define H1940_LATCH_LCD_P4		(1<<27)

#define H1940_LATCH_CPUQ5		(1<<28)		/* untraced */

#define H1940_LATCH_BLUETOOTH_POWER	(1<<29)		/* active high */

#define H1940_LATCH_LED_GREEN		(1<<30)

#define H1940_LATCH_LED_FLASH		(1<<31)



/* default settings */



#define H1940_LATCH_DEFAULT		\

	H1940_LATCH_LCD_P4		| \

	H1940_LATCH_SM803_ENABLE	| \

	H1940_LATCH_SDQ1		| \

	H1940_LATCH_LCD_P1		| \

	H1940_LATCH_LCD_P2		| \

	H1940_LATCH_LCD_P3		| \

	H1940_LATCH_MAX1698_nSHUTDOWN   | \

	H1940_LATCH_CPUQ5



/* control functions */



extern void h1940_latch_control(unsigned int clear, unsigned int set);



#endif /* __ASM_ARCH_H1940_LATCH_H */