diff options
Diffstat (limited to 'drivers/pinctrl/actions/pinctrl-owl.h')
| -rw-r--r-- | drivers/pinctrl/actions/pinctrl-owl.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/drivers/pinctrl/actions/pinctrl-owl.h b/drivers/pinctrl/actions/pinctrl-owl.h new file mode 100644 index 000000000..dae2e8363 --- /dev/null +++ b/drivers/pinctrl/actions/pinctrl-owl.h @@ -0,0 +1,312 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * OWL SoC's Pinctrl definitions + * + * Copyright (c) 2014 Actions Semi Inc. + * Author: David Liu <liuwei@actions-semi.com> + * + * Copyright (c) 2018 Linaro Ltd. + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> + */ + +#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__ */ |