[deliverable/linux.git] / arch / arm / mach-mmp / mfp.h

#ifndef __ASM_MACH_MFP_H
#define __ASM_MACH_MFP_H

#include <plat/mfp.h>

/*
 * NOTE: the MFPR register bit definitions on PXA168 processor lines are a
 * bit different from those on PXA3xx.  Bit [7:10] are now reserved, which
 * were SLEEP_OE_N, SLEEP_DATA, SLEEP_SEL and the LSB of DRIVE bits.
 *
 * To cope with this difference and re-use the pxa3xx mfp code as much as
 * possible, we make the following compromise:
 *
 * 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)
 * 2. DRIVE strength definitions redefined to include the reserved bit
 *    - the reserved bit differs between pxa168 and pxa910, and the
 *      MFP_DRIVE_* macros are individually defined in mfp-pxa{168,910}.h
 * 3. Override MFP_CFG() and MFP_CFG_DRV()
 * 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()
 */

#undef MFP_CFG
#undef MFP_CFG_DRV
#undef MFP_CFG_LPM
#undef MFP_CFG_X
#undef MFP_CFG_DEFAULT

#define MFP_CFG(pin, af)		\
	(MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)

#define MFP_CFG_DRV(pin, af, drv)	\
	(MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)

#endif /* __ASM_MACH_MFP_H */
Commit	Line	Data
a7a89d96 EM	1	#ifndef __ASM_MACH_MFP_H
	2	#define __ASM_MACH_MFP_H
	3
	4	#include <plat/mfp.h>
	5
	6	/*
	7	* NOTE: the MFPR register bit definitions on PXA168 processor lines are a
	8	* bit different from those on PXA3xx. Bit [7:10] are now reserved, which
	9	* were SLEEP_OE_N, SLEEP_DATA, SLEEP_SEL and the LSB of DRIVE bits.
	10	*
	11	* To cope with this difference and re-use the pxa3xx mfp code as much as
	12	* possible, we make the following compromise:
	13	*
	14	* 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)
0e1b74df MW	15	* 2. DRIVE strength definitions redefined to include the reserved bit
	16	* - the reserved bit differs between pxa168 and pxa910, and the
	17	* MFP_DRIVE_* macros are individually defined in mfp-pxa{168,910}.h
a7a89d96 EM	18	* 3. Override MFP_CFG() and MFP_CFG_DRV()
	19	* 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()
	20	*/
	21
a7a89d96 EM	22	#undef MFP_CFG
	23	#undef MFP_CFG_DRV
	24	#undef MFP_CFG_LPM
	25	#undef MFP_CFG_X
	26	#undef MFP_CFG_DEFAULT
	27
	28	#define MFP_CFG(pin, af) \
	29	(MFP_LPM_FLOAT \| MFP_PIN(MFP_PIN_##pin) \| MFP_##af \| MFP_DRIVE_MEDIUM)
	30
	31	#define MFP_CFG_DRV(pin, af, drv) \
	32	(MFP_LPM_FLOAT \| MFP_PIN(MFP_PIN_##pin) \| MFP_##af \| MFP_DRIVE_##drv)
	33
	34	#endif /* __ASM_MACH_MFP_H */