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/*
* Based on Linux i.MX iomux-v3.h file:
* Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
* <armlinux@phytec.de>
*
* Copyright (C) 2011 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MACH_IOMUX_V3_H__
#define __MACH_IOMUX_V3_H__
#include <common.h>
/*
* build IOMUX_PAD structure
*
* This iomux scheme is based around pads, which are the physical balls
* on the processor.
*
* - Each pad has a pad control register (IOMUXC_SW_PAD_CTRL_x) which controls
* things like driving strength and pullup/pulldown.
* - Each pad can have but not necessarily does have an output routing register
* (IOMUXC_SW_MUX_CTL_PAD_x).
* - Each pad can have but not necessarily does have an input routing register
* (IOMUXC_x_SELECT_INPUT)
*
* The three register sets do not have a fixed offset to each other,
* hence we order this table by pad control registers (which all pads
* have) and put the optional i/o routing registers into additional
* fields.
*
* The naming convention for the pad modes is SOC_PAD_<padname>__<padmode>
* If <padname> or <padmode> refers to a GPIO, it is named GPIO_<unit>_<num>
*
* IOMUX/PAD Bit field definitions
*
* MUX_CTRL_OFS: 0..11 (12)
* PAD_CTRL_OFS: 12..23 (12)
* SEL_INPUT_OFS: 24..35 (12)
* MUX_MODE + SION: 36..40 (5)
* PAD_CTRL + NO_PAD_CTRL: 41..58 (18)
* SEL_INP: 59..62 (4)
* reserved: 63 (1)
*/
typedef u64 iomux_v3_cfg_t;
#define MUX_CTRL_OFS_SHIFT 0
#define MUX_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT)
#define MUX_PAD_CTRL_OFS_SHIFT 12
#define MUX_PAD_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << \
MUX_PAD_CTRL_OFS_SHIFT)
#define MUX_SEL_INPUT_OFS_SHIFT 24
#define MUX_SEL_INPUT_OFS_MASK ((iomux_v3_cfg_t)0xfff << \
MUX_SEL_INPUT_OFS_SHIFT)
#define MUX_MODE_SHIFT 36
#define MUX_MODE_MASK ((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT)
#define MUX_PAD_CTRL_SHIFT 41
#define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT)
#define MUX_SEL_INPUT_SHIFT 59
#define MUX_SEL_INPUT_MASK ((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT)
#define MUX_MODE_SION ((iomux_v3_cfg_t)IOMUX_CONFIG_SION << \
MUX_MODE_SHIFT)
#define MUX_PAD_CTRL(x) ((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT)
#define IOMUX_PAD(pad_ctrl_ofs, mux_ctrl_ofs, mux_mode, sel_input_ofs, \
sel_input, pad_ctrl) \
(((iomux_v3_cfg_t)(mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) | \
((iomux_v3_cfg_t)(mux_mode) << MUX_MODE_SHIFT) | \
((iomux_v3_cfg_t)(pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \
((iomux_v3_cfg_t)(pad_ctrl) << MUX_PAD_CTRL_SHIFT) | \
((iomux_v3_cfg_t)(sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT)| \
((iomux_v3_cfg_t)(sel_input) << MUX_SEL_INPUT_SHIFT))
#define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | \
MUX_PAD_CTRL(pad))
#define __NA_ 0x000
#define NO_MUX_I 0
#define NO_PAD_I 0
#define NO_PAD_CTRL (1 << 17)
#ifdef CONFIG_MX6
#define PAD_CTL_HYS (1 << 16)
#define PAD_CTL_PUS_100K_DOWN (0 << 14 | PAD_CTL_PUE)
#define PAD_CTL_PUS_47K_UP (1 << 14 | PAD_CTL_PUE)
#define PAD_CTL_PUS_100K_UP (2 << 14 | PAD_CTL_PUE)
#define PAD_CTL_PUS_22K_UP (3 << 14 | PAD_CTL_PUE)
#define PAD_CTL_PUE (1 << 13 | PAD_CTL_PKE)
#define PAD_CTL_PKE (1 << 12)
#define PAD_CTL_ODE (1 << 11)
#if defined(CONFIG_MX6SX) || defined(CONFIG_MX6UL)
#define PAD_CTL_SPEED_LOW (0 << 6)
#else
#define PAD_CTL_SPEED_LOW (1 << 6)
#endif
#define PAD_CTL_SPEED_MED (2 << 6)
#define PAD_CTL_SPEED_HIGH (3 << 6)
#define PAD_CTL_DSE_DISABLE (0 << 3)
#define PAD_CTL_DSE_240ohm (1 << 3)
#define PAD_CTL_DSE_120ohm (2 << 3)
#define PAD_CTL_DSE_80ohm (3 << 3)
#define PAD_CTL_DSE_60ohm (4 << 3)
#define PAD_CTL_DSE_48ohm (5 << 3)
#define PAD_CTL_DSE_40ohm (6 << 3)
#define PAD_CTL_DSE_34ohm (7 << 3)
#if defined CONFIG_MX6SL
#define PAD_CTL_LVE (1 << 1)
#define PAD_CTL_LVE_BIT (1 << 22)
#endif
#elif defined(CONFIG_VF610)
#define PAD_MUX_MODE_SHIFT 20
#define PAD_CTL_INPUT_DIFFERENTIAL (1 << 16)
#define PAD_CTL_SPEED_MED (1 << 12)
#define PAD_CTL_SPEED_HIGH (3 << 12)
#define PAD_CTL_SRE (1 << 11)
#define PAD_CTL_ODE (1 << 10)
#define PAD_CTL_DSE_150ohm (1 << 6)
#define PAD_CTL_DSE_50ohm (3 << 6)
#define PAD_CTL_DSE_25ohm (6 << 6)
#define PAD_CTL_DSE_20ohm (7 << 6)
#define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE)
#define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE)
#define PAD_CTL_PUS_22K_UP (3 << 4 | PAD_CTL_PUE)
#define PAD_CTL_PKE (1 << 3)
#define PAD_CTL_PUE (1 << 2 | PAD_CTL_PKE)
#define PAD_CTL_OBE_IBE_ENABLE (3 << 0)
#define PAD_CTL_OBE_ENABLE (1 << 1)
#define PAD_CTL_IBE_ENABLE (1 << 0)
#else
#define PAD_CTL_DVS (1 << 13)
#define PAD_CTL_INPUT_DDR (1 << 9)
#define PAD_CTL_HYS (1 << 8)
#define PAD_CTL_PKE (1 << 7)
#define PAD_CTL_PUE (1 << 6 | PAD_CTL_PKE)
#define PAD_CTL_PUS_100K_DOWN (0 << 4 | PAD_CTL_PUE)
#define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE)
#define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE)
#define PAD_CTL_PUS_22K_UP (3 << 4 | PAD_CTL_PUE)
#define PAD_CTL_ODE (1 << 3)
#define PAD_CTL_DSE_LOW (0 << 1)
#define PAD_CTL_DSE_MED (1 << 1)
#define PAD_CTL_DSE_HIGH (2 << 1)
#define PAD_CTL_DSE_MAX (3 << 1)
#endif
#define PAD_CTL_SRE_SLOW (0 << 0)
#define PAD_CTL_SRE_FAST (1 << 0)
#define IOMUX_CONFIG_SION 0x10
#define GPIO_PIN_MASK 0x1f
#define GPIO_PORT_SHIFT 5
#define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)
#define GPIO_PORTA (0 << GPIO_PORT_SHIFT)
#define GPIO_PORTB (1 << GPIO_PORT_SHIFT)
#define GPIO_PORTC (2 << GPIO_PORT_SHIFT)
#define GPIO_PORTD (3 << GPIO_PORT_SHIFT)
#define GPIO_PORTE (4 << GPIO_PORT_SHIFT)
#define GPIO_PORTF (5 << GPIO_PORT_SHIFT)
void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
unsigned count);
/*
* Set bits for general purpose registers
*/
void imx_iomux_set_gpr_register(int group, int start_bit,
int num_bits, int value);
#ifdef CONFIG_IOMUX_SHARE_CONF_REG
void imx_iomux_gpio_set_direction(unsigned int gpio,
unsigned int direction);
void imx_iomux_gpio_get_function(unsigned int gpio,
u32 *gpio_state);
#endif
/* macros for declaring and using pinmux array */
#if defined(CONFIG_MX6QDL)
#define IOMUX_PADS(x) (MX6Q_##x), (MX6DL_##x)
#define SETUP_IOMUX_PAD(def) \
if (is_cpu_type(MXC_CPU_MX6Q)) { \
imx_iomux_v3_setup_pad(MX6Q_##def); \
} else { \
imx_iomux_v3_setup_pad(MX6DL_##def); \
}
#define SETUP_IOMUX_PADS(x) \
imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x)/2)
#elif defined(CONFIG_MX6Q) || defined(CONFIG_MX6D)
#define IOMUX_PADS(x) MX6Q_##x
#define SETUP_IOMUX_PAD(def) \
imx_iomux_v3_setup_pad(MX6Q_##def);
#define SETUP_IOMUX_PADS(x) \
imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
#else
#define IOMUX_PADS(x) MX6DL_##x
#define SETUP_IOMUX_PAD(def) \
imx_iomux_v3_setup_pad(MX6DL_##def);
#define SETUP_IOMUX_PADS(x) \
imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
#endif
#endif /* __MACH_IOMUX_V3_H__*/
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