arch/ppc/platforms/4xx/oak.h

   1 /*
   2  *
   3  *    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
   4  *
   5  *    Module name: oak.h
   6  *
   7  *    Description:
   8  *      Macros, definitions, and data structures specific to the IBM PowerPC
   9  *      403G{A,B,C,CX} "Oak" evaluation board. Anything specific to the pro-
  10  *      cessor itself is defined elsewhere.
  11  *
  12  */
  13
  14 #ifdef __KERNEL__
  15 #ifndef __ASM_OAK_H__
  16 #define __ASM_OAK_H__
  17
  18 /* We have an IBM 403G{A,B,C,CX} core */
  19 #include <asm/ibm403.h>
  20
  21 #define _IO_BASE        0
  22 #define _ISA_MEM_BASE   0
  23 #define PCI_DRAM_OFFSET 0
  24
  25 /* Memory map for the "Oak" evaluation board */
  26
  27 #define PPC403SPU_IO_BASE       0x40000000      /* 403 On-chip serial port */
  28 #define PPC403SPU_IO_SIZE       0x00000008
  29 #define OAKSERIAL_IO_BASE       0x7E000000      /* NS16550DV serial port */
  30 #define OAKSERIAL_IO_SIZE       0x00000008
  31 #define OAKNET_IO_BASE          0xF4000000      /* NS83902AV Ethernet */
  32 #define OAKNET_IO_SIZE          0x00000040
  33 #define OAKPROM_IO_BASE         0xFFFE0000      /* AMD 29F010 Flash ROM */
  34 #define OAKPROM_IO_SIZE         0x00020000
  35
  36
  37 /* Interrupt assignments fixed by the hardware implementation */
  38
  39 /* This is annoying kbuild-2.4 problem. -- Tom */
  40
  41 #define PPC403SPU_RX_INT        4       /* AIC_INT4 */
  42 #define PPC403SPU_TX_INT        5       /* AIC_INT5 */
  43 #define OAKNET_INT              27      /* AIC_INT27 */
  44 #define OAKSERIAL_INT           28      /* AIC_INT28 */
  45
  46 #ifndef __ASSEMBLY__
  47 /*
  48  * Data structure defining board information maintained by the boot
  49  * ROM on IBM's "Oak" evaluation board. An effort has been made to
  50  * keep the field names consistent with the 8xx 'bd_t' board info
  51  * structures.
  52  */
  53
  54 typedef struct board_info {
  55         unsigned char    bi_s_version[4];       /* Version of this structure */
  56         unsigned char    bi_r_version[30];      /* Version of the IBM ROM */
  57         unsigned int     bi_memsize;            /* DRAM installed, in bytes */
  58         unsigned char    bi_enetaddr[6];        /* Ethernet MAC address */
  59         unsigned int     bi_intfreq;            /* Processor speed, in Hz */
  60         unsigned int     bi_busfreq;            /* Bus speed, in Hz */
  61 } bd_t;
  62
  63 #ifdef __cplusplus
  64 extern "C" {
  65 #endif
  66
  67 extern void              oak_init(unsigned long r3,
  68                                   unsigned long ird_start,
  69                                   unsigned long ird_end,
  70                                   unsigned long cline_start,
  71                                   unsigned long cline_end);
  72 extern void              oak_setup_arch(void);
  73 extern int               oak_setup_residual(char *buffer);
  74 extern void              oak_init_IRQ(void);
  75 extern int               oak_get_irq(struct pt_regs *regs);
  76 extern void              oak_restart(char *cmd);
  77 extern void              oak_power_off(void);
  78 extern void              oak_halt(void);
  79 extern void              oak_time_init(void);
  80 extern int               oak_set_rtc_time(unsigned long now);
  81 extern unsigned long     oak_get_rtc_time(void);
  82 extern void              oak_calibrate_decr(void);
  83
  84 #ifdef __cplusplus
  85 }
  86 #endif
  87
  88 /* Some 4xx parts use a different timebase frequency from the internal clock.
  89 */
  90 #define bi_tbfreq bi_intfreq
  91
  92 #define PPC4xx_MACHINE_NAME     "IBM Oak"
  93
  94 #endif /* !__ASSEMBLY__ */
  95 #endif /* __ASM_OAK_H__ */
  96 #endif /* __KERNEL__ */