diff options
Diffstat (limited to 'arch/arm/include/asm/mach-imx/iomux-v3.h')
| -rw-r--r-- | arch/arm/include/asm/mach-imx/iomux-v3.h | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach-imx/iomux-v3.h b/arch/arm/include/asm/mach-imx/iomux-v3.h new file mode 100644 index 0000000000..ad35e0109e --- /dev/null +++ b/arch/arm/include/asm/mach-imx/iomux-v3.h @@ -0,0 +1,270 @@ +/* + * 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 + LPSR: 36..41 (6) + * PAD_CTRL + NO_PAD_CTRL: 42..59 (18) + * SEL_INP: 60..63 (4) +*/ + +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)0x3f << MUX_MODE_SHIFT) +#define MUX_PAD_CTRL_SHIFT 42 +#define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT) +#define MUX_SEL_INPUT_SHIFT 60 +#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) + +#define IOMUX_CONFIG_LPSR 0x20 +#define MUX_MODE_LPSR ((iomux_v3_cfg_t)IOMUX_CONFIG_LPSR << \ + MUX_MODE_SHIFT) +#ifdef CONFIG_MX7 + +#define IOMUX_LPSR_SEL_INPUT_OFS 0x70000 + +#define PAD_CTL_DSE_1P8V_140OHM (0x0<<0) +#define PAD_CTL_DSE_1P8V_35OHM (0x1<<0) +#define PAD_CTL_DSE_1P8V_70OHM (0x2<<0) +#define PAD_CTL_DSE_1P8V_23OHM (0x3<<0) + +#define PAD_CTL_DSE_3P3V_196OHM (0x0<<0) +#define PAD_CTL_DSE_3P3V_49OHM (0x1<<0) +#define PAD_CTL_DSE_3P3V_98OHM (0x2<<0) +#define PAD_CTL_DSE_3P3V_32OHM (0x3<<0) + +#define PAD_CTL_SRE_FAST (0 << 2) +#define PAD_CTL_SRE_SLOW (0x1 << 2) + +#define PAD_CTL_HYS (0x1 << 3) +#define PAD_CTL_PUE (0x1 << 4) + +#define PAD_CTL_PUS_PD100KOHM ((0x0 << 5) | PAD_CTL_PUE) +#define PAD_CTL_PUS_PU5KOHM ((0x1 << 5) | PAD_CTL_PUE) +#define PAD_CTL_PUS_PU47KOHM ((0x2 << 5) | PAD_CTL_PUE) +#define PAD_CTL_PUS_PU100KOHM ((0x3 << 5) | PAD_CTL_PUE) + +#else + +#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) + +/* i.MX6SL/SLL */ +#define PAD_CTL_LVE (1 << 1) +#define PAD_CTL_LVE_BIT (1 << 22) + +/* i.MX6SLL */ +#define PAD_CTL_IPD_BIT (1 << 27) + +#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_75ohm (2 << 6) +#define PAD_CTL_DSE_50ohm (3 << 6) +#define PAD_CTL_DSE_37ohm (4 << 6) +#define PAD_CTL_DSE_30ohm (5 << 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) + +#endif + +#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) || is_cpu_type(MXC_CPU_MX6D)) { \ + 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)) +#elif defined(CONFIG_MX6UL) +#define IOMUX_PADS(x) MX6_##x +#define SETUP_IOMUX_PAD(def) \ + imx_iomux_v3_setup_pad(MX6_##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__*/ |