1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_MACH_MFP_H
3 #define __ASM_MACH_MFP_H
4
5 #include <plat/mfp.h>
6
7 /*
8 * NOTE: the MFPR register bit definitions on PXA168 processor lines are a
9 * bit different from those on PXA3xx. Bit [7:10] are now reserved, which
10 * were SLEEP_OE_N, SLEEP_DATA, SLEEP_SEL and the LSB of DRIVE bits.
11 *
12 * To cope with this difference and re-use the pxa3xx mfp code as much as
13 * possible, we make the following compromise:
14 *
15 * 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)
16 * 2. DRIVE strength definitions redefined to include the reserved bit
17 * - the reserved bit differs between pxa168 and pxa910, and the
18 * MFP_DRIVE_* macros are individually defined in mfp-pxa{168,910}.h
19 * 3. Override MFP_CFG() and MFP_CFG_DRV()
20 * 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()
21 */
22
23 #undef MFP_CFG
24 #undef MFP_CFG_DRV
25 #undef MFP_CFG_LPM
26 #undef MFP_CFG_X
27 #undef MFP_CFG_DEFAULT
28
29 #define MFP_CFG(pin, af) \
30 (MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)
31
32 #define MFP_CFG_DRV(pin, af, drv) \
33 (MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)
34
35 #endif /* __ASM_MACH_MFP_H */