drivers/clk/renesas/rcar-gen3-cpg.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * R-Car Gen3 Clock Pulse Generator
   4  *
   5  * Copyright (C) 2015-2018 Glider bvba
   6  * Copyright (C) 2018 Renesas Electronics Corp.
   7  *
   8  */
   9
  10 #ifndef __CLK_RENESAS_RCAR_GEN3_CPG_H__
  11 #define __CLK_RENESAS_RCAR_GEN3_CPG_H__
  12
  13 enum rcar_gen3_clk_types {
  14         CLK_TYPE_GEN3_MAIN = CLK_TYPE_CUSTOM,
  15         CLK_TYPE_GEN3_PLL0,
  16         CLK_TYPE_GEN3_PLL1,
  17         CLK_TYPE_GEN3_PLL2,
  18         CLK_TYPE_GEN3_PLL3,
  19         CLK_TYPE_GEN3_PLL4,
  20         CLK_TYPE_GEN3_SD,
  21         CLK_TYPE_GEN3_R,
  22         CLK_TYPE_GEN3_MDSEL,    /* Select parent/divider using mode pin */
  23         CLK_TYPE_GEN3_Z,
  24         CLK_TYPE_GEN3_OSC,      /* OSC EXTAL predivider and fixed divider */
  25         CLK_TYPE_GEN3_RCKSEL,   /* Select parent/divider using RCKCR.CKSEL */
  26         CLK_TYPE_GEN3_RPCSRC,
  27         CLK_TYPE_GEN3_RPC,
  28         CLK_TYPE_GEN3_RPCD2,
  29
  30         /* SoC specific definitions start here */
  31         CLK_TYPE_GEN3_SOC_BASE,
  32 };
  33
  34 #define DEF_GEN3_SD(_name, _id, _parent, _offset)       \
  35         DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
  36
  37 #define DEF_GEN3_MDSEL(_name, _id, _md, _parent0, _div0, _parent1, _div1) \
  38         DEF_BASE(_name, _id, CLK_TYPE_GEN3_MDSEL,       \
  39                  (_parent0) << 16 | (_parent1),         \
  40                  .div = (_div0) << 16 | (_div1), .offset = _md)
  41
  42 #define DEF_GEN3_PE(_name, _id, _parent_sscg, _div_sscg, _parent_clean, \
  43                     _div_clean) \
  44         DEF_GEN3_MDSEL(_name, _id, 12, _parent_sscg, _div_sscg, \
  45                        _parent_clean, _div_clean)
  46
  47 #define DEF_GEN3_OSC(_name, _id, _parent, _div)         \
  48         DEF_BASE(_name, _id, CLK_TYPE_GEN3_OSC, _parent, .div = _div)
  49
  50 #define DEF_GEN3_RCKSEL(_name, _id, _parent0, _div0, _parent1, _div1) \
  51         DEF_BASE(_name, _id, CLK_TYPE_GEN3_RCKSEL,      \
  52                  (_parent0) << 16 | (_parent1), .div = (_div0) << 16 | (_div1))
  53
  54 #define DEF_GEN3_Z(_name, _id, _type, _parent, _div, _offset)   \
  55         DEF_BASE(_name, _id, _type, _parent, .div = _div, .offset = _offset)
  56
  57 struct rcar_gen3_cpg_pll_config {
  58         u8 extal_div;
  59         u8 pll1_mult;
  60         u8 pll1_div;
  61         u8 pll3_mult;
  62         u8 pll3_div;
  63         u8 osc_prediv;
  64 };
  65
  66 #define CPG_RPCCKCR     0x238
  67 #define CPG_RCKCR       0x240
  68
  69 struct clk *rcar_gen3_cpg_clk_register(struct device *dev,
  70         const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
  71         struct clk **clks, void __iomem *base,
  72         struct raw_notifier_head *notifiers);
  73 int rcar_gen3_cpg_init(const struct rcar_gen3_cpg_pll_config *config,
  74                        unsigned int clk_extalr, u32 mode);
  75
  76 #endif