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 }; 37 38 static inline void pmc_lock(struct at91_pmc *pmc) 39 { 40 spin_lock(&pmc->lock); 41 } 42 43 static inline void pmc_unlock(struct at91_pmc *pmc) 44 { 45 spin_unlock(&pmc->lock); 46 } 47 48 static inline u32 pmc_read(struct at91_pmc *pmc, int offset) 49 { 50 return readl(pmc->regbase + offset); 51 } 52 53 static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value) 54 { 55 writel(value, pmc->regbase + offset); 56 } 57 58 int of_at91_get_clk_range(struct device_node *np, const char *propname, 59 struct clk_range *range); 60 61 extern void __init of_at91sam9260_clk_slow_setup(struct device_node *np, 62 struct at91_pmc *pmc); 63 64 extern void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np, 65 struct at91_pmc *pmc); 66 extern void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np, 67 struct at91_pmc *pmc); 68 extern void __init of_at91rm9200_clk_main_setup(struct device_node *np, 69 struct at91_pmc *pmc); 70 extern void __init of_at91sam9x5_clk_main_setup(struct device_node *np, 71 struct at91_pmc *pmc); 72 73 extern void __init of_at91rm9200_clk_pll_setup(struct device_node *np, 74 struct at91_pmc *pmc); 75 extern void __init of_at91sam9g45_clk_pll_setup(struct device_node *np, 76 struct at91_pmc *pmc); 77 extern void __init of_at91sam9g20_clk_pllb_setup(struct device_node *np, 78 struct at91_pmc *pmc); 79 extern void __init of_sama5d3_clk_pll_setup(struct device_node *np, 80 struct at91_pmc *pmc); 81 extern void __init of_at91sam9x5_clk_plldiv_setup(struct device_node *np, 82 struct at91_pmc *pmc); 83 84 extern void __init of_at91rm9200_clk_master_setup(struct device_node *np, 85 struct at91_pmc *pmc); 86 extern void __init of_at91sam9x5_clk_master_setup(struct device_node *np, 87 struct at91_pmc *pmc); 88 89 extern void __init of_at91rm9200_clk_sys_setup(struct device_node *np, 90 struct at91_pmc *pmc); 91 92 extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np, 93 struct at91_pmc *pmc); 94 extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np, 95 struct at91_pmc *pmc); 96 97 extern void __init of_at91rm9200_clk_prog_setup(struct device_node *np, 98 struct at91_pmc *pmc); 99 extern void __init of_at91sam9g45_clk_prog_setup(struct device_node *np, 100 struct at91_pmc *pmc); 101 extern void __init of_at91sam9x5_clk_prog_setup(struct device_node *np, 102 struct at91_pmc *pmc); 103 104 #if defined(CONFIG_HAVE_AT91_UTMI) 105 extern void __init of_at91sam9x5_clk_utmi_setup(struct device_node *np, 106 struct at91_pmc *pmc); 107 #endif 108 109 #if defined(CONFIG_HAVE_AT91_USB_CLK) 110 extern void __init of_at91rm9200_clk_usb_setup(struct device_node *np, 111 struct at91_pmc *pmc); 112 extern void __init of_at91sam9x5_clk_usb_setup(struct device_node *np, 113 struct at91_pmc *pmc); 114 extern void __init of_at91sam9n12_clk_usb_setup(struct device_node *np, 115 struct at91_pmc *pmc); 116 #endif 117 118 #if defined(CONFIG_HAVE_AT91_SMD) 119 extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, 120 struct at91_pmc *pmc); 121 #endif 122 123 #if defined(CONFIG_HAVE_AT91_SMD) 124 extern void __init of_sama5d4_clk_h32mx_setup(struct device_node *np, 125 struct at91_pmc *pmc); 126 #endif 127 128 #endif /* __PMC_H_ */ 129