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_ */ 130