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 #include <linux/reboot.h>
  18
  19 extern void davinci_timer_init(void);
  20
  21 extern void davinci_irq_init(void);
  22 extern void __iomem *davinci_intc_base;
  23 extern int davinci_intc_type;
  24
  25 struct davinci_timer_instance {
  26         u32             base;
  27         u32             bottom_irq;
  28         u32             top_irq;
  29         unsigned long   cmp_off;
  30         unsigned int    cmp_irq;
  31 };
  32
  33 struct davinci_timer_info {
  34         struct davinci_timer_instance   *timers;
  35         unsigned int                    clockevent_id;
  36         unsigned int                    clocksource_id;
  37 };
  38
  39 struct davinci_gpio_controller;
  40
  41 /*
  42  * SoC info passed into common davinci modules.
  43  *
  44  * Base addresses in this structure should be physical and not virtual.
  45  * Modules that take such base addresses, should internally ioremap() them to
  46  * use.
  47  */
  48 struct davinci_soc_info {
  49         struct map_desc                 *io_desc;
  50         unsigned long                   io_desc_num;
  51         u32                             cpu_id;
  52         u32                             jtag_id;
  53         u32                             jtag_id_reg;
  54         struct davinci_id               *ids;
  55         unsigned long                   ids_num;
  56         struct clk_lookup               *cpu_clks;
  57         u32                             *psc_bases;
  58         unsigned long                   psc_bases_num;
  59         u32                             pinmux_base;
  60         const struct mux_config         *pinmux_pins;
  61         unsigned long                   pinmux_pins_num;
  62         u32                             intc_base;
  63         int                             intc_type;
  64         u8                              *intc_irq_prios;
  65         unsigned long                   intc_irq_num;
  66         u32                             *intc_host_map;
  67         struct davinci_timer_info       *timer_info;
  68         int                             gpio_type;
  69         u32                             gpio_base;
  70         unsigned                        gpio_num;
  71         unsigned                        gpio_irq;
  72         unsigned                        gpio_unbanked;
  73         struct davinci_gpio_controller  *gpio_ctlrs;
  74         int                             gpio_ctlrs_num;
  75         struct platform_device          *serial_dev;
  76         struct emac_platform_data       *emac_pdata;
  77         dma_addr_t                      sram_dma;
  78         unsigned                        sram_len;
  79 };
  80
  81 extern struct davinci_soc_info davinci_soc_info;
  82
  83 extern void davinci_common_init(struct davinci_soc_info *soc_info);
  84 extern void davinci_init_ide(void);
  85 void davinci_restart(enum reboot_mode mode, const char *cmd);
  86 void davinci_init_late(void);
  87
  88 #ifdef CONFIG_DAVINCI_RESET_CLOCKS
  89 int davinci_clk_disable_unused(void);
  90 #else
  91 static inline int davinci_clk_disable_unused(void) { return 0; }
  92 #endif
  93
  94 #ifdef CONFIG_CPU_FREQ
  95 int davinci_cpufreq_init(void);
  96 #else
  97 static inline int davinci_cpufreq_init(void) { return 0; }
  98 #endif
  99
 100 #ifdef CONFIG_SUSPEND
 101 int davinci_pm_init(void);
 102 #else
 103 static inline int davinci_pm_init(void) { return 0; }
 104 #endif
 105
 106 #define SRAM_SIZE       SZ_128K
 107
 108 #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */