drivers/clk/microchip/clk-core.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Purna Chandra Mandal,<purna.mandal@microchip.com>
   4  * Copyright (C) 2015 Microchip Technology Inc.  All rights reserved.
   5  */
   6 #ifndef __MICROCHIP_CLK_PIC32_H_
   7 #define __MICROCHIP_CLK_PIC32_H_
   8
   9 #include <linux/clk-provider.h>
  10
  11 /* PIC32 clock data */
  12 struct pic32_clk_common {
  13         struct device *dev;
  14         void __iomem *iobase;
  15         spinlock_t reg_lock; /* clock lock */
  16 };
  17
  18 /* System PLL clock */
  19 struct pic32_sys_pll_data {
  20         struct clk_init_data init_data;
  21         const u32 ctrl_reg;
  22         const u32 status_reg;
  23         const u32 lock_mask;
  24 };
  25
  26 /* System clock */
  27 struct pic32_sys_clk_data {
  28         struct clk_init_data init_data;
  29         const u32 mux_reg;
  30         const u32 slew_reg;
  31         const u32 *parent_map;
  32         const u32 slew_div;
  33 };
  34
  35 /* Reference Oscillator clock */
  36 struct pic32_ref_osc_data {
  37         struct clk_init_data init_data;
  38         const u32 ctrl_reg;
  39         const u32 *parent_map;
  40 };
  41
  42 /* Peripheral Bus clock */
  43 struct pic32_periph_clk_data {
  44         struct clk_init_data init_data;
  45         const u32 ctrl_reg;
  46 };
  47
  48 /* External Secondary Oscillator clock  */
  49 struct pic32_sec_osc_data {
  50         struct clk_init_data init_data;
  51         const u32 enable_reg;
  52         const u32 status_reg;
  53         const u32 enable_mask;
  54         const u32 status_mask;
  55         const unsigned long fixed_rate;
  56 };
  57
  58 extern const struct clk_ops pic32_pbclk_ops;
  59 extern const struct clk_ops pic32_sclk_ops;
  60 extern const struct clk_ops pic32_sclk_no_div_ops;
  61 extern const struct clk_ops pic32_spll_ops;
  62 extern const struct clk_ops pic32_roclk_ops;
  63 extern const struct clk_ops pic32_sosc_ops;
  64
  65 struct clk *pic32_periph_clk_register(const struct pic32_periph_clk_data *data,
  66                                       struct pic32_clk_common *core);
  67 struct clk *pic32_refo_clk_register(const struct pic32_ref_osc_data *data,
  68                                     struct pic32_clk_common *core);
  69 struct clk *pic32_sys_clk_register(const struct pic32_sys_clk_data *data,
  70                                    struct pic32_clk_common *core);
  71 struct clk *pic32_spll_clk_register(const struct pic32_sys_pll_data *data,
  72                                     struct pic32_clk_common *core);
  73 struct clk *pic32_sosc_clk_register(const struct pic32_sec_osc_data *data,
  74                                     struct pic32_clk_common *core);
  75
  76 #endif /* __MICROCHIP_CLK_PIC32_H_*/