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 struct sys_timer;
  19
  20 extern struct sys_timer davinci_timer;
  21
  22 extern void davinci_irq_init(void);
  23 extern void __iomem *davinci_intc_base;
  24 extern int davinci_intc_type;
  25
  26 struct davinci_timer_instance {
  27         u32             base;
  28         u32             bottom_irq;
  29         u32             top_irq;
  30         unsigned long   cmp_off;
  31         unsigned int    cmp_irq;
  32 };
  33
  34 struct davinci_timer_info {
  35         struct davinci_timer_instance   *timers;
  36         unsigned int                    clockevent_id;
  37         unsigned int                    clocksource_id;
  38 };
  39
  40 struct davinci_gpio_controller;
  41
  42 /*
  43  * SoC info passed into common davinci modules.
  44  *
  45  * Base addresses in this structure should be physical and not virtual.
  46  * Modules that take such base addresses, should internally ioremap() them to
  47  * use.
  48  */
  49 struct davinci_soc_info {
  50         struct map_desc                 *io_desc;
  51         unsigned long                   io_desc_num;
  52         u32                             cpu_id;
  53         u32                             jtag_id;
  54         u32                             jtag_id_reg;
  55         struct davinci_id               *ids;
  56         unsigned long                   ids_num;
  57         struct clk_lookup               *cpu_clks;
  58         u32                             *psc_bases;
  59         unsigned long                   psc_bases_num;
  60         u32                             pinmux_base;
  61         const struct mux_config         *pinmux_pins;
  62         unsigned long                   pinmux_pins_num;
  63         u32                             intc_base;
  64         int                             intc_type;
  65         u8                              *intc_irq_prios;
  66         unsigned long                   intc_irq_num;
  67         u32                             *intc_host_map;
  68         struct davinci_timer_info       *timer_info;
  69         int                             gpio_type;
  70         u32                             gpio_base;
  71         unsigned                        gpio_num;
  72         unsigned                        gpio_irq;
  73         unsigned                        gpio_unbanked;
  74         struct davinci_gpio_controller  *gpio_ctlrs;
  75         int                             gpio_ctlrs_num;
  76         struct platform_device          *serial_dev;
  77         struct emac_platform_data       *emac_pdata;
  78         dma_addr_t                      sram_dma;
  79         unsigned                        sram_len;
  80 };
  81
  82 extern struct davinci_soc_info davinci_soc_info;
  83
  84 extern void davinci_common_init(struct davinci_soc_info *soc_info);
  85 extern void davinci_init_ide(void);
  86 void davinci_restart(char mode, const char *cmd);
  87
  88 /* standard place to map on-chip SRAMs; they *may* support DMA */
  89 #define SRAM_VIRT       0xfffe0000
  90 #define SRAM_SIZE       SZ_128K
  91
  92 #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */