drivers/clk/at91/pmc.h

   1 /*
   2  * drivers/clk/at91/pmc.h
   3  *
   4  *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #ifndef __PMC_H_
  13 #define __PMC_H_
  14
  15 #include <linux/io.h>
  16 #include <linux/irqdomain.h>
  17 #include <linux/spinlock.h>
  18
  19 struct clk_range {
  20         unsigned long min;
  21         unsigned long max;
  22 };
  23
  24 #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,}
  25
  26 struct at91_pmc_caps {
  27         u32 available_irqs;
  28 };
  29
  30 struct at91_pmc {
  31         void __iomem *regbase;
  32         int virq;
  33         spinlock_t lock;
  34         const struct at91_pmc_caps *caps;
  35         struct irq_domain *irqdomain;
  36         u32 imr;
  37 };
  38
  39 static inline void pmc_lock(struct at91_pmc *pmc)
  40 {
  41         spin_lock(&pmc->lock);
  42 }
  43
  44 static inline void pmc_unlock(struct at91_pmc *pmc)
  45 {
  46         spin_unlock(&pmc->lock);
  47 }
  48
  49 static inline u32 pmc_read(struct at91_pmc *pmc, int offset)
  50 {
  51         return readl(pmc->regbase + offset);
  52 }
  53
  54 static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value)
  55 {
  56         writel(value, pmc->regbase + offset);
  57 }
  58
  59 int of_at91_get_clk_range(struct device_node *np, const char *propname,
  60                           struct clk_range *range);
  61
  62 extern void __init of_at91sam9260_clk_slow_setup(struct device_node *np,
  63                                                  struct at91_pmc *pmc);
  64
  65 extern void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np,
  66                                                     struct at91_pmc *pmc);
  67 extern void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np,
  68                                                        struct at91_pmc *pmc);
  69 extern void __init of_at91rm9200_clk_main_setup(struct device_node *np,
  70                                                 struct at91_pmc *pmc);
  71 extern void __init of_at91sam9x5_clk_main_setup(struct device_node *np,
  72                                                 struct at91_pmc *pmc);
  73
  74 extern void __init of_at91rm9200_clk_pll_setup(struct device_node *np,
  75                                                struct at91_pmc *pmc);
  76 extern void __init of_at91sam9g45_clk_pll_setup(struct device_node *np,
  77                                                 struct at91_pmc *pmc);
  78 extern void __init of_at91sam9g20_clk_pllb_setup(struct device_node *np,
  79                                                  struct at91_pmc *pmc);
  80 extern void __init of_sama5d3_clk_pll_setup(struct device_node *np,
  81                                             struct at91_pmc *pmc);
  82 extern void __init of_at91sam9x5_clk_plldiv_setup(struct device_node *np,
  83                                                   struct at91_pmc *pmc);
  84
  85 extern void __init of_at91rm9200_clk_master_setup(struct device_node *np,
  86                                                   struct at91_pmc *pmc);
  87 extern void __init of_at91sam9x5_clk_master_setup(struct device_node *np,
  88                                                   struct at91_pmc *pmc);
  89
  90 extern void __init of_at91rm9200_clk_sys_setup(struct device_node *np,
  91                                                struct at91_pmc *pmc);
  92
  93 extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np,
  94                                                   struct at91_pmc *pmc);
  95 extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np,
  96                                                   struct at91_pmc *pmc);
  97
  98 extern void __init of_at91rm9200_clk_prog_setup(struct device_node *np,
  99                                                 struct at91_pmc *pmc);
 100 extern void __init of_at91sam9g45_clk_prog_setup(struct device_node *np,
 101                                                  struct at91_pmc *pmc);
 102 extern void __init of_at91sam9x5_clk_prog_setup(struct device_node *np,
 103                                                 struct at91_pmc *pmc);
 104
 105 #if defined(CONFIG_HAVE_AT91_UTMI)
 106 extern void __init of_at91sam9x5_clk_utmi_setup(struct device_node *np,
 107                                                 struct at91_pmc *pmc);
 108 #endif
 109
 110 #if defined(CONFIG_HAVE_AT91_USB_CLK)
 111 extern void __init of_at91rm9200_clk_usb_setup(struct device_node *np,
 112                                                struct at91_pmc *pmc);
 113 extern void __init of_at91sam9x5_clk_usb_setup(struct device_node *np,
 114                                                struct at91_pmc *pmc);
 115 extern void __init of_at91sam9n12_clk_usb_setup(struct device_node *np,
 116                                                 struct at91_pmc *pmc);
 117 #endif
 118
 119 #if defined(CONFIG_HAVE_AT91_SMD)
 120 extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np,
 121                                                struct at91_pmc *pmc);
 122 #endif
 123
 124 #if defined(CONFIG_HAVE_AT91_H32MX)
 125 extern void __init of_sama5d4_clk_h32mx_setup(struct device_node *np,
 126                                               struct at91_pmc *pmc);
 127 #endif
 128
 129 #endif /* __PMC_H_ */