arch/arm/mach-davinci/include/mach/common.h

   1 /*
   2  * Header for code common to all DaVinci machines.
   3  *
   4  * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
   5  *
   6  * 2007 (c) MontaVista Software, Inc. This file is licensed under
   7  * the terms of the GNU General Public License version 2. This program
   8  * is licensed "as is" without any warranty of any kind, whether express
   9  * or implied.
  10  */
  11
  12 #ifndef __ARCH_ARM_MACH_DAVINCI_COMMON_H
  13 #define __ARCH_ARM_MACH_DAVINCI_COMMON_H
  14
  15 #include <linux/compiler.h>
  16 #include <linux/types.h>
  17
  18 extern void davinci_timer_init(void);
  19
  20 extern void davinci_irq_init(void);
  21 extern void __iomem *davinci_intc_base;
  22 extern int davinci_intc_type;
  23
  24 struct davinci_timer_instance {
  25         u32             base;
  26         u32             bottom_irq;
  27         u32             top_irq;
  28         unsigned long   cmp_off;
  29         unsigned int    cmp_irq;
  30 };
  31
  32 struct davinci_timer_info {
  33         struct davinci_timer_instance   *timers;
  34         unsigned int                    clockevent_id;
  35         unsigned int                    clocksource_id;
  36 };
  37
  38 struct davinci_gpio_controller;
  39
  40 /*
  41  * SoC info passed into common davinci modules.
  42  *
  43  * Base addresses in this structure should be physical and not virtual.
  44  * Modules that take such base addresses, should internally ioremap() them to
  45  * use.
  46  */
  47 struct davinci_soc_info {
  48         struct map_desc                 *io_desc;
  49         unsigned long                   io_desc_num;
  50         u32                             cpu_id;
  51         u32                             jtag_id;
  52         u32                             jtag_id_reg;
  53         struct davinci_id               *ids;
  54         unsigned long                   ids_num;
  55         struct clk_lookup               *cpu_clks;
  56         u32                             *psc_bases;
  57         unsigned long                   psc_bases_num;
  58         u32                             pinmux_base;
  59         const struct mux_config         *pinmux_pins;
  60         unsigned long                   pinmux_pins_num;
  61         u32                             intc_base;
  62         int                             intc_type;
  63         u8                              *intc_irq_prios;
  64         unsigned long                   intc_irq_num;
  65         u32                             *intc_host_map;
  66         struct davinci_timer_info       *timer_info;
  67         int                             gpio_type;
  68         u32                             gpio_base;
  69         unsigned                        gpio_num;
  70         unsigned                        gpio_irq;
  71         unsigned                        gpio_unbanked;
  72         struct davinci_gpio_controller  *gpio_ctlrs;
  73         int                             gpio_ctlrs_num;
  74         struct platform_device          *serial_dev;
  75         struct emac_platform_data       *emac_pdata;
  76         dma_addr_t                      sram_dma;
  77         unsigned                        sram_len;
  78 };
  79
  80 extern struct davinci_soc_info davinci_soc_info;
  81
  82 extern void davinci_common_init(struct davinci_soc_info *soc_info);
  83 extern void davinci_init_ide(void);
  84 void davinci_restart(char mode, const char *cmd);
  85 void davinci_init_late(void);
  86
  87 #ifdef CONFIG_DAVINCI_RESET_CLOCKS
  88 int davinci_clk_disable_unused(void);
  89 #else
  90 static inline int davinci_clk_disable_unused(void) { return 0; }
  91 #endif
  92
  93 #ifdef CONFIG_CPU_FREQ
  94 int davinci_cpufreq_init(void);
  95 #else
  96 static inline int davinci_cpufreq_init(void) { return 0; }
  97 #endif
  98
  99 #ifdef CONFIG_SUSPEND
 100 int davinci_pm_init(void);
 101 #else
 102 static inline int davinci_pm_init(void) { return 0; }
 103 #endif
 104
 105 #define SRAM_SIZE       SZ_128K
 106
 107 #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */