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  */
  41 struct 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 */
  54 struct sirfsoc_muxmask {
  55         unsigned long group;
  56         unsigned long mask;
  57 };
  58
  59 struct 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  */
  76 struct 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
  89 struct 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
 104 struct 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
 113 extern struct sirfsoc_pinctrl_data prima2_pinctrl_data;
 114 extern struct sirfsoc_pinctrl_data atlas6_pinctrl_data;
 115
 116 #endif