diff options
Diffstat (limited to 'drivers/pinctrl/nxp/pinctrl-mxs.h')
| -rw-r--r-- | drivers/pinctrl/nxp/pinctrl-mxs.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/pinctrl/nxp/pinctrl-mxs.h b/drivers/pinctrl/nxp/pinctrl-mxs.h new file mode 100644 index 0000000000..a398e43cbe --- /dev/null +++ b/drivers/pinctrl/nxp/pinctrl-mxs.h @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + */ + +#ifndef __PINCTRL_MXS_H +#define __PINCTRL_MXS_H + +#include <dm/pinctrl.h> + +#define SET 0x4 +#define CLR 0x8 +#define TOG 0xc + +#define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) +#define PINID(bank, pin) ((bank) * 32 + (pin)) + +/* + * pinmux-id bit field definitions + * + * bank: 15..12 (4) + * pin: 11..4 (8) + * muxsel: 3..0 (4) + */ +#define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff) +#define MUXID_TO_MUXSEL(m) ((m) & 0xf) + +#define PINID_TO_BANK(p) ((p) >> 5) +#define PINID_TO_PIN(p) ((p) % 32) + +/* + * pin config bit field definitions + * + * pull-up: 6..5 (2) + * voltage: 4..3 (2) + * mA: 2..0 (3) + * + * MSB of each field is presence bit for the config. + */ +#define PULL_PRESENT (1 << 6) +#define PULL_SHIFT 5 +#define VOL_PRESENT (1 << 4) +#define VOL_SHIFT 3 +#define MA_PRESENT (1 << 2) +#define MA_SHIFT 0 +#define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1) +#define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1) +#define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3) + +struct mxs_regs { + u16 muxsel; + u16 drive; + u16 pull; +}; + +static inline void mxs_pinctrl_rmwl(u32 value, u32 mask, u8 shift, + void __iomem *reg) +{ + clrsetbits_le32(reg, mask << shift, value << shift); +} +#endif /* __PINCTRL_MXS_H */ |