bsp.h

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/* SPDX-License-Identifier: GPL-2.0+-with-RTEMS-exception */
 
/*
 * Copyright (c) 1998 Eric Valette <eric.valette@free.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.
 *
 * S. Kate Feng 2003-2007 : Modified it to support the mvme5500 BSP.
 *
 * Modified for the 'beatnik' BSP by T. Straumann, 2005-2007.
 */
 
#ifndef LIBBSP_BEATNIK_BSP_H
#define LIBBSP_BEATNIK_BSP_H
 
#ifndef ASM
 
#include <bspopts.h>
#include <bsp/default-initial-extension.h>
 
#include <rtems.h>
#include <libcpu/io.h>
#include <bsp/vectors.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* Board type */
typedef enum {
  Unknown = 0,
  MVME5500,
  MVME6100
} BSP_BoardType;
 
BSP_BoardType BSP_getBoardType(void);
 
/* Discovery Version */
 
typedef enum {
  unknown    = 0,
  GT_64260_A,      /* Revision 0x10 */
  GT_64260_B,      /* Revision 0x20 */
  MV_64360,
} DiscoveryVersion;
 
/* Determine the type of discovery chip on this board; info
 * is cached and repeated calls just return the cached value.
 *
 * If a non-zero argument is passed, the routine panics
 * (rtems_panic) if no recognized bridge is found;
 */
DiscoveryVersion BSP_getDiscoveryVersion(int assertion);
 
/*
 *  confdefs.h overrides for this BSP:
 *   - Interrupt stack space is not minimum if defined.
 */
#define BSP_INTERRUPT_STACK_SIZE          (16 * 1024)
 
/*
 *  base address definitions for several devices
 */
#define BSP_MV64x60_BASE        (0xf1000000)
#define BSP_MV64x60_DEV1_BASE   (0xf1100000)
#define BSP_UART_IOBASE_COM1    ((BSP_MV64x60_DEV1_BASE)+0x20000)
#define BSP_UART_IOBASE_COM2    ((BSP_MV64x60_DEV1_BASE)+0x21000)
#define BSP_UART_USE_SHARED_IRQS
 
#define BSP_NVRAM_BASE_ADDR      (0xf1110000)
#define BSP_NVRAM_END_ADDR       (0xf1117fff)
#define BSP_NVRAM_RTC_START      (0xf1117ff8)
 
#define BSP_NVRAM_BOOTPARMS_START  (0xf1111000)
#define BSP_NVRAM_BOOTPARMS_END    (0xf1111fff)
 
 
/* This is only active/used during early init. It defines
 * the hose0 base for the shared/generic pci code.
 * Our own BSP specific pci initialization will then
 * override the PCI configuration (see gt_pci_init.c:BSP_pci_initialize)
 */
 
#define PCI_CONFIG_ADDR        (BSP_MV64x60_BASE + 0xcf8)
#define PCI_CONFIG_DATA        (BSP_MV64x60_BASE + 0xcfc)
 
/* our wonderful PCI initialization remaps everything to CPU addresses
 * - before calling BSP_pci_initialize() this is NOT VALID, however
 * and the deprecated inl()/outl() etc won't work!
 */
#define _IO_BASE          0x00000000
/* wonderful MotLoad has the base address as seen from the
 * CPU programmed into config space :-)
 */
#define PCI_MEM_BASE               0
#define PCI_MEM_BASE_ADJUSTMENT    0
#define PCI_DRAM_OFFSET            0
 
extern void BSP_motload_pci_fixup(void);
 
/* PCI <-> local address mapping - no sophisticated windows
 * (i.e., no support for cached regions etc. you read a BAR
 * from config space and that's 1:1 where the CPU sees it).
 * Our memory is mapped 1:1 to PCI also.
 */
#define BSP_PCI2LOCAL_ADDR(a) ((uint32_t)(a))
#define BSP_LOCAL2PCI_ADDR(a) ((uint32_t)(a))
 
#define BSP_CONFIG_NUM_PCI_CACHE_SLOTS  32
 
#define BSP_CONSOLE_PORT      BSP_UART_COM1
#define BSP_UART_BAUD_BASE    115200
 
/* I2C Devices */
/* Note that the i2c addresses stated in the manual are
 * left-shifted by one bit.
 */
#define BSP_VPD_I2C_ADDR      (0xA8>>1)    /* the VPD EEPROM  */
#define BSP_USR_I2C_ADDR      (0xAA>>1)    /* the user EEPROM */
#define BSP_THM_I2C_ADDR      (0x90>>1)    /* the DS1621 temperature sensor & thermostat */
 
#define BSP_I2C_BUS_DESCRIPTOR    gt64260_i2c_bus_descriptor
 
#define BSP_I2C_BUS0_NAME             "/dev/i2c0"
 
#define BSP_I2C_VPD_EEPROM_NAME       "vpd-eeprom"
#define BSP_I2C_USR_EEPROM_NAME       "usr-eeprom"
#define BSP_I2C_DS1621_NAME           "ds1621"
#define BSP_I2C_THM_NAME              BSP_I2C_DS1621_NAME
#define BSP_I2C_DS1621_RAW_NAME       "ds1621-raw"
 
#define  BSP_I2C_VPD_EEPROM_DEV_NAME      (BSP_I2C_BUS0_NAME "." BSP_I2C_VPD_EEPROM_NAME)
#define  BSP_I2C_USR_EEPROM_DEV_NAME      (BSP_I2C_BUS0_NAME "." BSP_I2C_USR_EEPROM_NAME)
#define  BSP_I2C_DS1621_DEV_NAME          (BSP_I2C_BUS0_NAME "." BSP_I2C_DS1621_NAME)
#define BSP_I2C_THM_DEV_NAME              BSP_I2C_DS1621_DEV_NAME
#define  BSP_I2C_DS1621_RAW_DEV_NAME      (BSP_I2C_BUS0_NAME "." BSP_I2C_DS1621_RAW_NAME)
 
 
/* Initialize the I2C driver and register all devices
 * RETURNS 0 on success, -1 on error.
 *
 * Access to the VPD and user EEPROMS as well
 * as the ds1621 temperature sensor is possible
 * by means of file nodes
 *
 *   /dev/i2c0.vpd-eeprom   (read-only)
 *   /dev/i2c0.usr-eeprom   (read-write)
 *   /dev/i2c0.ds1621       (read-only; one byte: board-temp in degC)
 *   /dev/i2c0.ds1621-raw   (read-write; transfer bytes to/from the ds1621)
 */
int BSP_i2c_initialize(void);
 
/* Networking; */
#include <bsp/bsp_bsdnet_attach.h>
int rtems_em_attach(struct rtems_bsdnet_ifconfig *, int);
int rtems_dec21140_driver_attach(struct rtems_bsdnet_ifconfig *, int);
int rtems_dc_driver_attach(struct rtems_bsdnet_ifconfig *, int);
 
/* NOT FOR PUBLIC USE BELOW HERE */
#define BSP_PCI_HOSE0_MEM_BASE    0x80000000  /* must be aligned to size */
#define BSP_PCI_HOSE0_MEM_SIZE    0x20000000
 
#define BSP_PCI_HOSE1_MEM_BASE    0xe0000000
 
#define BSP_DEV_AND_PCI_IO_BASE   0xf0000000
#define BSP_DEV_AND_PCI_IO_SIZE   0x10000000
 
/* maintain coherency between CPU and GT64340 Ethernet
 * (andpossibly other Discovery components).
 */
#define BSP_RW_PAGE_ATTRIBUTES  TRIV121_ATTR_M
 
extern unsigned BSP_pci_hose1_bus_base;
 
void BSP_pci_initialize(void);
 
/* Exception Handling */
 
/* Use a task notepad to attach user exception handler info;
 * may be changed by application startup code (EPICS uses 11)
 */
#define BSP_EXCEPTION_NOTEPAD    14
 
#ifndef ASM
 
#if 0
/*
 * These definitions are wrong because the in/out methods assume that
 * the port is a real address. The shared drivers using the inport_
 * and outport_ functions pass in IO Space offset values. These values
 * can not and should not be cast to memory space pointers.
 *
 * If these turn out to be needed in the future, the Beatnick IO
 * space base address will need to be added.
 */
#define outport_byte(port,value) outb(value,port)
#define outport_word(port,value) outw(value,port)
#define outport_long(port,value) outl(value,port)
 
#define inport_byte(port,value) (value = inb(port))
#define inport_word(port,value) (value = inw(port))
#define inport_long(port,value) (value = inl(port))
#endif
 
/*
 * Vital Board data Start using DATA RESIDUAL
 */
/*
 * Total memory using RESIDUAL DATA
 */
extern unsigned int BSP_mem_size;
/*
 * Start of the heap
 */
extern unsigned int BSP_heap_start;
/*
 * 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;
 
extern char BSP_productIdent[20];
extern char BSP_serialNumber[20];
 
extern char BSP_enetAddr0[7];
extern char BSP_enetAddr1[7];
 
/*
 * The commandline as passed from the bootloader.
 */
extern char *BSP_commandline_string;
 
 
#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 int BSP_disconnect_clock_handler (void);
extern int BSP_connect_clock_handler (void);
 
/* clear hostbridge errors
 *
 * enableMCP: whether to enable MCP checkstop / machine check interrupts
 *            on the hostbridge and in HID0.
 *
 *            NOTE: The 5500 and 6100 boards have NO PHYSICAL CONNECTION
 *                  to MCP so 'enableMCP' will always fail!
 *
 * quiet    : be silent
 *
 * RETURNS  : PCI status (hose 0 in byte 0, host 1 in byte 1) and
 *            VME bridge status (upper 16 bits).
 *            Zero if no errors were found.
 */
extern unsigned long _BSP_clear_hostbridge_errors(int enableMCP, int quiet);
 
/* clear vme bridge errors and return (bridge-dependent) 16-bit status
 *
 * quiet    : be silent
 *
 * RETURNS  : 0 if there were no errors, non-zero, bridge-dependent
 *            16-bit error status on error.
 *
 */
extern unsigned short (*_BSP_clear_vmebridge_errors)(int);
 
/*
 * Prototypes for debug helpers
 */
void discovery_pic_set_debug_irq(int on);
void discovery_pic_install_debug_irq(void);
 
/*
 * 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);
 
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif /* !ASM */
 
#endif