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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2018 NXP
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*/
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#ifndef __ASM_ARCH_IMX8_IOMUX_H__
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#define __ASM_ARCH_IMX8_IOMUX_H__
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/*
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* We use 64bits value for iomux settings.
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* High 32bits are used for padring register value,
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* low 16bits are used for pin index.
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*/
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typedef u64 iomux_cfg_t;
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#define PADRING_IFMUX_EN_SHIFT 31
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#define PADRING_IFMUX_EN_MASK BIT(31)
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#define PADRING_GP_EN_SHIFT 30
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#define PADRING_GP_EN_MASK BIT(30)
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#define PADRING_IFMUX_SHIFT 27
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#define PADRING_IFMUX_MASK GENMASK(29, 27)
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#define PADRING_CONFIG_SHIFT 25
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#define PADRING_LPCONFIG_SHIFT 23
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#define PADRING_PULL_SHIFT 5
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#define PADRING_DSE_SHIFT 0
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#define MUX_PAD_CTRL_SHIFT 32
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#define MUX_PAD_CTRL_MASK ((iomux_cfg_t)0xFFFFFFFF << MUX_PAD_CTRL_SHIFT)
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#define MUX_PAD_CTRL(x) ((iomux_cfg_t)(x) << MUX_PAD_CTRL_SHIFT)
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#define MUX_MODE_SHIFT (PADRING_IFMUX_SHIFT + MUX_PAD_CTRL_SHIFT)
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#define MUX_MODE_MASK ((iomux_cfg_t)0x7 << MUX_MODE_SHIFT)
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#define PIN_ID_MASK ((iomux_cfg_t)0xFFFF)
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/* Valid mux alt0 to alt7 */
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#define MUX_MODE_ALT(x) (((iomux_cfg_t)(x) << MUX_MODE_SHIFT) & \
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MUX_MODE_MASK)
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void imx8_iomux_setup_pad(iomux_cfg_t pad);
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void imx8_iomux_setup_multiple_pads(iomux_cfg_t const *pad_list, u32 count);
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#endif /* __ASM_ARCH_IMX8_IOMUX_H__ */
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