release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/plat-brcm/include/mach/io_map.h

   1 #ifndef __MACH_IO_MAP_H
   2 #define __MACH_IO_MAP_H __FILE__
   3
   4 #include <asm/memory.h>
   5 #include <asm/page.h>
   6 #include <mach/vmalloc.h>
   7 #include <plat/plat-bcm5301x.h>
   8
   9 /*
  10  * This is the address of the UART used for low-level debug,
  11  * a.k.a. EARLY_PRINTK, and it must be known at compile time,
  12  * so it can be used in early uncompression and assembly code.
  13  * It is now defined in platform Kconfig, and verified in
  14  * SoC-level platform "C" file.
  15  */
  16 #ifdef  CONFIG_DEBUG_LL
  17 #ifdef  CONFIG_DEBUG_UART_ADDR
  18 #define PLAT_LLDEBUG_UART_PA    CONFIG_DEBUG_UART_ADDR
  19 #else
  20 #error  Define CONFIG_DEBUG_UART_ADDR in Kconfig to use EARLY_PRINTK
  21 #endif
  22 #endif
  23
  24 /*
  25  * There are only a few fixed virtual I/O mappings we need.
  26  * We shall place them after VMALLOC_END, and hope they do
  27  * not conflict with CONSISTENT_BASE, the start of mapping for
  28  * DMA memory.
  29  */
  30 #define PLAT_FIXMAP_BASE        (VMALLOC_END + (1<<20))
  31 #define IO_BASE_VA      0xf1000000      /* Temp - K.I.S.S. */
  32 #define IO_BASE_PA      (0xff000000 & PLAT_UART0_PA)
  33
  34 #define SOC_CHIPCOMON_A_BASE_VA (SOC_CHIPCOMON_A_BASE_PA-IO_BASE_PA+IO_BASE_VA)
  35 #define SOC_DMU_BASE_VA         (SOC_DMU_BASE_PA -IO_BASE_PA+IO_BASE_VA)
  36
  37 #define PLAT_UART0_OFF          (PLAT_UART0_PA-IO_BASE_PA)
  38 #define PLAT_UART1_OFF          (PLAT_UART1_PA-IO_BASE_PA)
  39 #define PLAT_UART2_OFF          (PLAT_UART2_PA-IO_BASE_PA)
  40
  41 #define PLAT_UART0_VA           (IO_BASE_VA + PLAT_UART0_OFF)
  42 #define PLAT_UART1_VA           (IO_BASE_VA + PLAT_UART1_OFF)
  43 #define PLAT_UART2_VA           (IO_BASE_VA + PLAT_UART2_OFF)
  44
  45 #ifdef  CONFIG_DEBUG_LL
  46 #if     PLAT_LLDEBUG_UART_PA==PLAT_UART0_PA
  47 #define PLAT_LLDEBUG_UART_VA            PLAT_UART0_VA
  48 #define PLAT_LLDEBUG_UART_SH            2
  49 #elif   PLAT_LLDEBUG_UART_PA==PLAT_UART1_PA
  50 #define PLAT_LLDEBUG_UART_VA            PLAT_UART1_VA
  51 #define PLAT_LLDEBUG_UART_SH            0
  52 #elif   PLAT_LLDEBUG_UART_PA==PLAT_UART2_PA
  53 #define PLAT_LLDEBUG_UART_VA            PLAT_UART2_VA
  54 #define PLAT_LLDEBUG_UART_SH            0
  55 #else
  56 #error  Configured debug UART address does not match known devices
  57 #endif
  58 #endif  /* CONFIG_DEBUG_LL */
  59
  60
  61
  62 /* Fixed virtual address for MPCORE registers
  63  * (SCU, Gtimer, Ptimer, GIC) : 2 pages
  64  */
  65 #define MPCORE_BASE_VA          (PLAT_FIXMAP_BASE + (0<<20))
  66
  67 /*
  68  * This is only used in entry-macros.S
  69  * Since we will map the MPCORE base at the same virtual address
  70  * on all supported SoCs, then it should be acceptable to use
  71  * the compile-time defined base address for the interrupt dispatcher
  72  * assembly code using the above macros.
  73  */
  74 #define MPCORE_GIC_CPUIF_VA     (MPCORE_BASE_VA+MPCORE_GIC_CPUIF_OFF)
  75
  76 #endif /*__MACH_IO_MAP_H */