drivers/pinctrl/sirf/pinctrl-sirf.h

   1 /*
   2  * pinmux driver shared headfile for CSR SiRFsoc
   3  *
   4  * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
   5  *
   6  * Licensed under GPLv2 or later.
   7  */
   8
   9 #ifndef __PINMUX_SIRF_H__
  10 #define __PINMUX_SIRF_H__
  11
  12 #define SIRFSOC_NUM_PADS                622
  13 #define SIRFSOC_RSC_USB_UART_SHARE      0
  14 #define SIRFSOC_RSC_PIN_MUX             0x4
  15
  16 #define SIRFSOC_GPIO_PAD_EN(g)          ((g)*0x100 + 0x84)
  17 #define SIRFSOC_GPIO_PAD_EN_CLR(g)      ((g)*0x100 + 0x90)
  18 #define SIRFSOC_GPIO_CTRL(g, i)                 ((g)*0x100 + (i)*4)
  19 #define SIRFSOC_GPIO_DSP_EN0                    (0x80)
  20 #define SIRFSOC_GPIO_INT_STATUS(g)              ((g)*0x100 + 0x8C)
  21
  22 #define SIRFSOC_GPIO_CTL_INTR_LOW_MASK          0x1
  23 #define SIRFSOC_GPIO_CTL_INTR_HIGH_MASK         0x2
  24 #define SIRFSOC_GPIO_CTL_INTR_TYPE_MASK         0x4
  25 #define SIRFSOC_GPIO_CTL_INTR_EN_MASK           0x8
  26 #define SIRFSOC_GPIO_CTL_INTR_STS_MASK          0x10
  27 #define SIRFSOC_GPIO_CTL_OUT_EN_MASK            0x20
  28 #define SIRFSOC_GPIO_CTL_DATAOUT_MASK           0x40
  29 #define SIRFSOC_GPIO_CTL_DATAIN_MASK            0x80
  30 #define SIRFSOC_GPIO_CTL_PULL_MASK              0x100
  31 #define SIRFSOC_GPIO_CTL_PULL_HIGH              0x200
  32 #define SIRFSOC_GPIO_CTL_DSP_INT                0x400
  33
  34 #define SIRFSOC_GPIO_NO_OF_BANKS        5
  35 #define SIRFSOC_GPIO_BANK_SIZE          32
  36 #define SIRFSOC_GPIO_NUM(bank, index)   (((bank)*(32)) + (index))
  37
  38 /**
  39  * @dev: a pointer back to containing device
  40  * @virtbase: the offset to the controller in virtual memory
  41  */
  42 struct sirfsoc_pmx {
  43         struct device *dev;
  44         struct pinctrl_dev *pmx;
  45         void __iomem *gpio_virtbase;
  46         void __iomem *rsc_virtbase;
  47         u32 gpio_regs[SIRFSOC_GPIO_NO_OF_BANKS][SIRFSOC_GPIO_BANK_SIZE];
  48         u32 ints_regs[SIRFSOC_GPIO_NO_OF_BANKS];
  49         u32 paden_regs[SIRFSOC_GPIO_NO_OF_BANKS];
  50         u32 dspen_regs;
  51         u32 rsc_regs[3];
  52 };
  53
  54 /* SIRFSOC_GPIO_PAD_EN set */
  55 struct sirfsoc_muxmask {
  56         unsigned long group;
  57         unsigned long mask;
  58 };
  59
  60 struct sirfsoc_padmux {
  61         unsigned long muxmask_counts;
  62         const struct sirfsoc_muxmask *muxmask;
  63         /* RSC_PIN_MUX set */
  64         unsigned long ctrlreg;
  65         unsigned long funcmask;
  66         unsigned long funcval;
  67 };
  68
  69  /**
  70  * struct sirfsoc_pin_group - describes a SiRFprimaII pin group
  71  * @name: the name of this specific pin group
  72  * @pins: an array of discrete physical pins used in this group, taken
  73  *      from the driver-local pin enumeration space
  74  * @num_pins: the number of pins in this group array, i.e. the number of
  75  *      elements in .pins so we can iterate over that array
  76  */
  77 struct sirfsoc_pin_group {
  78         const char *name;
  79         const unsigned int *pins;
  80         const unsigned num_pins;
  81 };
  82
  83 #define SIRFSOC_PIN_GROUP(n, p)  \
  84         {                       \
  85                 .name = n,      \
  86                 .pins = p,      \
  87                 .num_pins = ARRAY_SIZE(p),      \
  88         }
  89
  90 struct sirfsoc_pmx_func {
  91         const char *name;
  92         const char * const *groups;
  93         const unsigned num_groups;
  94         const struct sirfsoc_padmux *padmux;
  95 };
  96
  97 #define SIRFSOC_PMX_FUNCTION(n, g, m)           \
  98         {                                       \
  99                 .name = n,                      \
 100                 .groups = g,                    \
 101                 .num_groups = ARRAY_SIZE(g),    \
 102                 .padmux = &m,                   \
 103         }
 104
 105 struct sirfsoc_pinctrl_data {
 106         struct pinctrl_pin_desc *pads;
 107         int pads_cnt;
 108         struct sirfsoc_pin_group *grps;
 109         int grps_cnt;
 110         struct sirfsoc_pmx_func *funcs;
 111         int funcs_cnt;
 112 };
 113
 114 extern struct sirfsoc_pinctrl_data prima2_pinctrl_data;
 115 extern struct sirfsoc_pinctrl_data atlas6_pinctrl_data;
 116
 117 #endif