mfp.h
1.15 KB
/* SPDX-License-Identifier: GPL-2.0 */
#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 */