// SPDX-License-Identifier: GPL-2.0+ /* * OWL SoC's Pinctrl definitions * * Copyright (c) 2014 Actions Semi Inc. * Author: David Liu * * Copyright (c) 2018 Linaro Ltd. * Author: Manivannan Sadhasivam */ #ifndef __PINCTRL_OWL_H__ #define __PINCTRL_OWL_H__ #define OWL_PINCONF_SLEW_SLOW 0 #define OWL_PINCONF_SLEW_FAST 1 #define MUX_PG(group_name, reg, shift, width) \ { \ .name = #group_name, \ .pads = group_name##_pads, \ .npads = ARRAY_SIZE(group_name##_pads), \ .funcs = group_name##_funcs, \ .nfuncs = ARRAY_SIZE(group_name##_funcs), \ .mfpctl_reg = MFCTL##reg, \ .mfpctl_shift = shift, \ .mfpctl_width = width, \ .drv_reg = -1, \ .drv_shift = -1, \ .drv_width = -1, \ .sr_reg = -1, \ .sr_shift = -1, \ .sr_width = -1, \ } #define DRV_PG(group_name, reg, shift, width) \ { \ .name = #group_name, \ .pads = group_name##_pads, \ .npads = ARRAY_SIZE(group_name##_pads), \ .mfpctl_reg = -1, \ .mfpctl_shift = -1, \ .mfpctl_width = -1, \ .drv_reg = PAD_DRV##reg, \ .drv_shift = shift, \ .drv_width = width, \ .sr_reg = -1, \ .sr_shift = -1, \ .sr_width = -1, \ } #define SR_PG(group_name, reg, shift, width) \ { \ .name = #group_name, \ .pads = group_name##_pads, \ .npads = ARRAY_SIZE(group_name##_pads), \ .mfpctl_reg = -1, \ .mfpctl_shift = -1, \ .mfpctl_width = -1, \ .drv_reg = -1, \ .drv_shift = -1, \ .drv_width = -1, \ .sr_reg = PAD_SR##reg, \ .sr_shift = shift, \ .sr_width = width, \ } #define FUNCTION(fname) \ { \ .name = #fname, \ .groups = fname##_groups, \ .ngroups = ARRAY_SIZE(fname##_groups), \ } /* PAD PULL UP/DOWN CONFIGURES */ #define PULLCTL_CONF(pull_reg, pull_sft, pull_wdt) \ { \ .reg = PAD_PULLCTL##pull_reg, \ .shift = pull_sft, \ .width = pull_wdt, \ } #define PAD_PULLCTL_CONF(pad_name, pull_reg, pull_sft, pull_wdt) \ struct owl_pullctl pad_name##_pullctl_conf \ = PULLCTL_CONF(pull_reg, pull_sft, pull_wdt) #define ST_CONF(st_reg, st_sft, st_wdt) \ { \ .reg = PAD_ST##st_reg, \ .shift = st_sft, \ .width = st_wdt, \ } #define PAD_ST_CONF(pad_name, st_reg, st_sft, st_wdt) \ struct owl_st pad_name##_st_conf \ = ST_CONF(st_reg, st_sft, st_wdt) #define PAD_INFO(name) \ { \ .pad = name, \ .pullctl = NULL, \ .st = NULL, \ } #define PAD_INFO_ST(name) \ { \ .pad = name, \ .pullctl = NULL, \ .st = &name##_st_conf, \ } #define PAD_INFO_PULLCTL(name) \ { \ .pad = name, \ .pullctl = &name##_pullctl_conf, \ .st = NULL, \ } #define PAD_INFO_PULLCTL_ST(name) \ { \ .pad = name, \ .pullctl = &name##_pullctl_conf, \ .st = &name##_st_conf, \ } #define OWL_GPIO_PORT_A 0 #define OWL_GPIO_PORT_B 1 #define OWL_GPIO_PORT_C 2 #define OWL_GPIO_PORT_D 3 #define OWL_GPIO_PORT_E 4 #define OWL_GPIO_PORT_F 5 #define OWL_GPIO_PORT(port, base, count, _outen, _inen, _dat, _intc_ctl,\ _intc_pd, _intc_msk, _intc_type, _share) \ [OWL_GPIO_PORT_##port] = { \ .offset = base, \ .pins = count, \ .outen = _outen, \ .inen = _inen, \ .dat = _dat, \ .intc_ctl = _intc_ctl, \ .intc_pd = _intc_pd, \ .intc_msk = _intc_msk, \ .intc_type = _intc_type, \ .shared_ctl_offset = _share, \ } enum owl_pinconf_drv { OWL_PINCONF_DRV_2MA, OWL_PINCONF_DRV_4MA, OWL_PINCONF_DRV_8MA, OWL_PINCONF_DRV_12MA, }; /* GPIO CTRL Bit Definition */ #define OWL_GPIO_CTLR_PENDING 0 #define OWL_GPIO_CTLR_ENABLE 1 #define OWL_GPIO_CTLR_SAMPLE_CLK_24M 2 /* GPIO TYPE Bit Definition */ #define OWL_GPIO_INT_LEVEL_HIGH 0 #define OWL_GPIO_INT_LEVEL_LOW 1 #define OWL_GPIO_INT_EDGE_RISING 2 #define OWL_GPIO_INT_EDGE_FALLING 3 #define OWL_GPIO_INT_MASK 3 /** * struct owl_pullctl - Actions pad pull control register * @reg: offset to the pull control register * @shift: shift value of the register * @width: width of the register */ struct owl_pullctl { int reg; unsigned int shift; unsigned int width; }; /** * struct owl_st - Actions pad schmitt trigger enable register * @reg: offset to the schmitt trigger enable register * @shift: shift value of the register * @width: width of the register */ struct owl_st { int reg; unsigned int shift; unsigned int width; }; /** * struct owl_pingroup - Actions pingroup definition * @name: name of the pin group * @pads: list of pins assigned to this pingroup * @npads: size of @pads array * @funcs: list of pinmux functions for this pingroup * @nfuncs: size of @funcs array * @mfpctl_reg: multiplexing control register offset * @mfpctl_shift: multiplexing control register bit mask * @mfpctl_width: multiplexing control register width * @drv_reg: drive control register offset * @drv_shift: drive control register bit mask * @drv_width: driver control register width * @sr_reg: slew rate control register offset * @sr_shift: slew rate control register bit mask * @sr_width: slew rate control register width */ struct owl_pingroup { const char *name; unsigned int *pads; unsigned int npads; unsigned int *funcs; unsigned int nfuncs; int mfpctl_reg; unsigned int mfpctl_shift; unsigned int mfpctl_width; int drv_reg; unsigned int drv_shift; unsigned int drv_width; int sr_reg; unsigned int sr_shift; unsigned int sr_width; }; /** * struct owl_padinfo - Actions pinctrl pad info * @pad: pad name of the SoC * @pullctl: pull control register info * @st: schmitt trigger register info */ struct owl_padinfo { int pad; struct owl_pullctl *pullctl; struct owl_st *st; }; /** * struct owl_pinmux_func - Actions pinctrl mux functions * @name: name of the pinmux function. * @groups: array of pin groups that may select this function. * @ngroups: number of entries in @groups. */ struct owl_pinmux_func { const char *name; const char * const *groups; unsigned int ngroups; }; /** * struct owl_gpio_port - Actions GPIO port info * @offset: offset of the GPIO port. * @pins: number of pins belongs to the GPIO port. * @outen: offset of the output enable register. * @inen: offset of the input enable register. * @dat: offset of the data register. * @intc_ctl: offset of the interrupt control register. * @intc_pd: offset of the interrupt pending register. * @intc_msk: offset of the interrupt mask register. * @intc_type: offset of the interrupt type register. */ struct owl_gpio_port { unsigned int offset; unsigned int pins; unsigned int outen; unsigned int inen; unsigned int dat; unsigned int intc_ctl; unsigned int intc_pd; unsigned int intc_msk; unsigned int intc_type; u8 shared_ctl_offset; }; /** * struct owl_pinctrl_soc_data - Actions pin controller driver configuration * @pins: array describing all pins of the pin controller. * @npins: number of entries in @pins. * @functions: array describing all mux functions of this SoC. * @nfunction: number of entries in @functions. * @groups: array describing all pin groups of this SoC. * @ngroups: number of entries in @groups. * @padinfo: array describing the pad info of this SoC. * @ngpios: number of pingroups the driver should expose as GPIOs. * @ports: array describing all GPIO ports of this SoC. * @nports: number of GPIO ports in this SoC. */ struct owl_pinctrl_soc_data { const struct pinctrl_pin_desc *pins; unsigned int npins; const struct owl_pinmux_func *functions; unsigned int nfunctions; const struct owl_pingroup *groups; unsigned int ngroups; const struct owl_padinfo *padinfo; unsigned int ngpios; const struct owl_gpio_port *ports; unsigned int nports; int (*padctl_val2arg)(const struct owl_padinfo *padinfo, unsigned int param, u32 *arg); int (*padctl_arg2val)(const struct owl_padinfo *info, unsigned int param, u32 *arg); }; int owl_pinctrl_probe(struct platform_device *pdev, struct owl_pinctrl_soc_data *soc_data); #endif /* __PINCTRL_OWL_H__ */