LXR linux/drivers/pinctrl/sirf/pinctrl-sirf.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * pinmux driver shared headfile for CSR SiRFsoc
   4 *
   5 * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
   6 */
   7
   8#ifndef __PINMUX_SIRF_H__
   9#define __PINMUX_SIRF_H__
  10
  11#define SIRFSOC_NUM_PADS                622
  12#define SIRFSOC_RSC_USB_UART_SHARE      0
  13#define SIRFSOC_RSC_PIN_MUX             0x4
  14
  15#define SIRFSOC_GPIO_PAD_EN(g)          ((g)*0x100 + 0x84)
  16#define SIRFSOC_GPIO_PAD_EN_CLR(g)      ((g)*0x100 + 0x90)
  17#define SIRFSOC_GPIO_CTRL(g, i)                 ((g)*0x100 + (i)*4)
  18#define SIRFSOC_GPIO_DSP_EN0                    (0x80)
  19#define SIRFSOC_GPIO_INT_STATUS(g)              ((g)*0x100 + 0x8C)
  20
  21#define SIRFSOC_GPIO_CTL_INTR_LOW_MASK          0x1
  22#define SIRFSOC_GPIO_CTL_INTR_HIGH_MASK         0x2
  23#define SIRFSOC_GPIO_CTL_INTR_TYPE_MASK         0x4
  24#define SIRFSOC_GPIO_CTL_INTR_EN_MASK           0x8
  25#define SIRFSOC_GPIO_CTL_INTR_STS_MASK          0x10
  26#define SIRFSOC_GPIO_CTL_OUT_EN_MASK            0x20
  27#define SIRFSOC_GPIO_CTL_DATAOUT_MASK           0x40
  28#define SIRFSOC_GPIO_CTL_DATAIN_MASK            0x80
  29#define SIRFSOC_GPIO_CTL_PULL_MASK              0x100
  30#define SIRFSOC_GPIO_CTL_PULL_HIGH              0x200
  31#define SIRFSOC_GPIO_CTL_DSP_INT                0x400
  32
  33#define SIRFSOC_GPIO_NO_OF_BANKS        5
  34#define SIRFSOC_GPIO_BANK_SIZE          32
  35#define SIRFSOC_GPIO_NUM(bank, index)   (((bank)*(32)) + (index))
  36
  37/**
  38 * @dev: a pointer back to containing device
  39 * @virtbase: the offset to the controller in virtual memory
  40 */
  41struct sirfsoc_pmx {
  42        struct device *dev;
  43        struct pinctrl_dev *pmx;
  44        void __iomem *gpio_virtbase;
  45        void __iomem *rsc_virtbase;
  46        u32 gpio_regs[SIRFSOC_GPIO_NO_OF_BANKS][SIRFSOC_GPIO_BANK_SIZE];
  47        u32 ints_regs[SIRFSOC_GPIO_NO_OF_BANKS];
  48        u32 paden_regs[SIRFSOC_GPIO_NO_OF_BANKS];
  49        u32 dspen_regs;
  50        u32 rsc_regs[3];
  51};
  52
  53/* SIRFSOC_GPIO_PAD_EN set */
  54struct sirfsoc_muxmask {
  55        unsigned long group;
  56        unsigned long mask;
  57};
  58
  59struct sirfsoc_padmux {
  60        unsigned long muxmask_counts;
  61        const struct sirfsoc_muxmask *muxmask;
  62        /* RSC_PIN_MUX set */
  63        unsigned long ctrlreg;
  64        unsigned long funcmask;
  65        unsigned long funcval;
  66};
  67
  68 /**
  69 * struct sirfsoc_pin_group - describes a SiRFprimaII pin group
  70 * @name: the name of this specific pin group
  71 * @pins: an array of discrete physical pins used in this group, taken
  72 *      from the driver-local pin enumeration space
  73 * @num_pins: the number of pins in this group array, i.e. the number of
  74 *      elements in .pins so we can iterate over that array
  75 */
  76struct sirfsoc_pin_group {
  77        const char *name;
  78        const unsigned int *pins;
  79        const unsigned num_pins;
  80};
  81
  82#define SIRFSOC_PIN_GROUP(n, p)  \
  83        {                       \
  84                .name = n,      \
  85                .pins = p,      \
  86                .num_pins = ARRAY_SIZE(p),      \
  87        }
  88
  89struct sirfsoc_pmx_func {
  90        const char *name;
  91        const char * const *groups;
  92        const unsigned num_groups;
  93        const struct sirfsoc_padmux *padmux;
  94};
  95
  96#define SIRFSOC_PMX_FUNCTION(n, g, m)           \
  97        {                                       \
  98                .name = n,                      \
  99                .groups = g,                    \
 100                .num_groups = ARRAY_SIZE(g),    \
 101                .padmux = &m,                   \
 102        }
 103
 104struct sirfsoc_pinctrl_data {
 105        struct pinctrl_pin_desc *pads;
 106        int pads_cnt;
 107        struct sirfsoc_pin_group *grps;
 108        int grps_cnt;
 109        struct sirfsoc_pmx_func *funcs;
 110        int funcs_cnt;
 111};
 112
 113extern struct sirfsoc_pinctrl_data prima2_pinctrl_data;
 114extern struct sirfsoc_pinctrl_data atlas6_pinctrl_data;
 115
 116#endif
 117