bsp.h

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/*
 *  Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 *
 *  (C) S. Kate Feng 2003-2007 : Modified it to support the mvme5500 BSP.
 */

#ifndef LIBBSP_POWERPC_MVME5500_BSP_H
#define LIBBSP_POWERPC_MVME5500_BSP_H

#ifndef ASM

#include <bspopts.h>
#include <bsp/default-initial-extension.h>

#include <rtems.h>
#include <libcpu/io.h>
#include <bsp/vectors.h>

/* Board type */
typedef enum {
  undefined = 0,
  MVME5500,
  MVME6100
} BSP_BoardTypes;

BSP_BoardTypes BSP_getBoardType(void);

/* Board type */
typedef enum {
  Undefined,
  UNIVERSE2,
  TSI148,
} BSP_VMEchipTypes;

BSP_VMEchipTypes BSP_getVMEchipType(void);

/* The version of Discovery system controller */

typedef enum {
  notdefined,
  GT64260A,
  GT64260B,
  MV64360,
} DiscoveryChipVersion;

DiscoveryChipVersion BSP_getDiscoveryChipVersion(void);

#define _256M           0x10000000
#define _512M           0x20000000

#define GT64x60_REG_BASE        0xf1000000  /* Base of GT64260 Reg Space */
#define GT64x60_REG_SPACE_SIZE  0x10000     /* 64Kb Internal Reg Space */

#define GT64x60_DEV1_BASE       0xf1100000  /* Device bank1(chip select 1) base
                                             */
#define GT64260_DEV1_SIZE       0x00100000 /* Device bank size */

/* fundamental addresses for this BSP (PREPxxx are from libcpu/io.h) */
#define _IO_BASE GT64x60_REG_BASE

#define BSP_NVRAM_BASE_ADDR     0xf1110000

#define BSP_RTC_INTA_REG        0x7ff0
#define BSP_RTC_SECOND          0x7ff2
#define BSP_RTC_MINUTE          0x7ff3
#define BSP_RTC_HOUR            0x7ff4
#define BSP_RTC_DATE            0x7ff5
#define BSP_RTC_INTERRUPTS      0x7ff6
#define BSP_RTC_WATCHDOG        0x7ff7

/* PCI0 Domain I/O space */
#define PCI0_IO_BASE            0xf0000000
#define PCI1_IO_BASE            0xf0800000

/* PCI 0 memory space as seen from the CPU */
#define PCI0_MEM_BASE                  0x80000000
#define PCI_MEM_BASE                   0  /* glue for vmeUniverse */
#define PCI_MEM_BASE_ADJUSTMENT        0

/* address of our ram on the PCI bus */
#define  PCI_DRAM_OFFSET          0

/* PCI 1 memory space as seen from the CPU */
#define PCI1_MEM_BASE           0xe0000000
#define PCI1_MEM_SIZE           0x10000000

/* Needed for hot adding via PMCspan on the PCI0 local bus.
 * This is board dependent, only because mvme5500
 * supports hot adding and has more than one local PCI
 * bus.
 */
#define BSP_MAX_PCI_BUS_ON_PCI0 8
#define BSP_MAX_PCI_BUS_ON_PCI1 2
#define BSP_MAX_PCI_BUS  (BSP_MAX_PCI_BUS_ON_PCI0+BSP_MAX_PCI_BUS_ON_PCI1)


/* The glues to Till's vmeUniverse, although the name does not
 * actually reflect the relevant architect of the MVME5500.
 */
#define BSP_PCI_IRQ0 BSP_GPP_IRQ_LOWEST_OFFSET

/*
 *  confdefs.h overrides for this BSP:
 *   - Interrupt stack space is not minimum if defined.
 */
#define BSP_INTERRUPT_STACK_SIZE  (16 * 1024) /* <skf> 2/09 wants it to be adjustable by BSP */

/* uart.c uses out_8 instead of outb  */
#define BSP_UART_IOBASE_COM1  GT64x60_DEV1_BASE + 0x20000
#define BSP_UART_IOBASE_COM2  GT64x60_DEV1_BASE + 0x21000

#define BSP_CONSOLE_PORT    BSP_UART_COM1  /* console */
#define BSP_UART_BAUD_BASE    115200

/*
 * Total memory using RESIDUAL DATA
 */
extern unsigned int BSP_mem_size;
/*
 * PCI Bus Frequency
 */
extern unsigned int BSP_bus_frequency;
/*
 * processor clock frequency
 */
extern unsigned int BSP_processor_frequency;
/*
 * Time base divisior (how many tick for 1 second).
 */
extern unsigned int BSP_time_base_divisor;

#define BSP_Convert_decrementer( _value ) \
  ((unsigned long long) ((((unsigned long long)BSP_time_base_divisor) * 1000000ULL) /((unsigned long long) BSP_bus_frequency)) * ((unsigned long long) (_value)))

extern void bsp_reset(void);
/* extern int printk(const char *, ...) __attribute__((format(printf, 1, 2))); */
extern int BSP_disconnect_clock_handler(void);
extern int BSP_connect_clock_handler(void);

unsigned long _BSP_clear_hostbridge_errors(int enableMCP, int quiet);

/*
 * Prototypes for methods called only from .S for dependency tracking
 */
char *save_boot_params(
  void *r3,
  void *r4,
  void *r5,
  char *cmdline_start,
  char *cmdline_end
);
void zero_bss(void);

/*
 * Prototypes for methods in the BSP that cross file boundaries
 */
uint32_t probeMemoryEnd(void);
void     pci_interface(void);
void     BSP_printPicIsrTbl(void);
int I2Cread_eeprom(
  unsigned char  I2cBusAddr,
  uint32_t       devA2A1A0,
  uint32_t       AddrBytes,
  unsigned char *pBuff,
  uint32_t       numBytes
);

#if 0
#define RTEMS_BSP_NETWORK_DRIVER_NAME  "gt1"
#define RTEMS_BSP_NETWORK_DRIVER_ATTACH  rtems_GT64260eth_driver_attach
#else
#define RTEMS_BSP_NETWORK_DRIVER_NAME  "wmG1"
#define RTEMS_BSP_NETWORK_DRIVER_ATTACH  rtems_i82544EI_driver_attach
#endif

struct rtems_bsdnet_ifconfig;

extern int RTEMS_BSP_NETWORK_DRIVER_ATTACH(struct rtems_bsdnet_ifconfig *, int);

#define gccMemBar() RTEMS_COMPILER_MEMORY_BARRIER()

static inline void lwmemBar(void)
{
    __asm__ volatile("lwsync":::"memory");
}

static inline void io_flush(void)
{
    __asm__ volatile("isync":::"memory");
}

static inline void memBar(void)
{
    __asm__ volatile("sync":::"memory");
}

static inline void ioBar(void)
{
    __asm__ volatile("eieio":::"memory");
}

#endif

#endif /* !ASM */