1 /* SPDX-License-Identifier: GPL-2.0+ */
6 #ifndef __ASM_ARCH_IMX8_IOMUX_H__
7 #define __ASM_ARCH_IMX8_IOMUX_H__
10 #include <linux/bitops.h>
14 * We use 64bits value for iomux settings.
15 * High 32bits are used for padring register value,
16 * low 16bits are used for pin index.
18 typedef u64 iomux_cfg_t;
20 #define PADRING_IFMUX_EN_SHIFT 31
21 #define PADRING_IFMUX_EN_MASK BIT(31)
22 #define PADRING_GP_EN_SHIFT 30
23 #define PADRING_GP_EN_MASK BIT(30)
24 #define PADRING_IFMUX_SHIFT 27
25 #define PADRING_IFMUX_MASK GENMASK(29, 27)
26 #define PADRING_CONFIG_SHIFT 25
27 #define PADRING_LPCONFIG_SHIFT 23
28 #define PADRING_PULL_SHIFT 5
29 #define PADRING_DSE_SHIFT 0
31 #define MUX_PAD_CTRL_SHIFT 32
32 #define MUX_PAD_CTRL_MASK ((iomux_cfg_t)0xFFFFFFFF << MUX_PAD_CTRL_SHIFT)
33 #define MUX_PAD_CTRL(x) ((iomux_cfg_t)(x) << MUX_PAD_CTRL_SHIFT)
34 #define MUX_MODE_SHIFT (PADRING_IFMUX_SHIFT + MUX_PAD_CTRL_SHIFT)
35 #define MUX_MODE_MASK ((iomux_cfg_t)0x7 << MUX_MODE_SHIFT)
36 #define PIN_ID_MASK ((iomux_cfg_t)0xFFFF)
38 /* Valid mux alt0 to alt7 */
39 #define MUX_MODE_ALT(x) (((iomux_cfg_t)(x) << MUX_MODE_SHIFT) & \
42 void imx8_iomux_setup_pad(iomux_cfg_t pad);
43 void imx8_iomux_setup_multiple_pads(iomux_cfg_t const *pad_list, u32 count);
44 #endif /* __ASM_ARCH_IMX8_IOMUX_H__ */