LXR linux/arch/mips/include/asm/netlogic/xlr/xlr.h

   1/*
   2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
   3 * reserved.
   4 *
   5 * This software is available to you under a choice of one of two
   6 * licenses.  You may choose to be licensed under the terms of the GNU
   7 * General Public License (GPL) Version 2, available from the file
   8 * COPYING in the main directory of this source tree, or the NetLogic
   9 * license below:
  10 *
  11 * Redistribution and use in source and binary forms, with or without
  12 * modification, are permitted provided that the following conditions
  13 * are met:
  14 *
  15 * 1. Redistributions of source code must retain the above copyright
  16 *    notice, this list of conditions and the following disclaimer.
  17 * 2. Redistributions in binary form must reproduce the above copyright
  18 *    notice, this list of conditions and the following disclaimer in
  19 *    the documentation and/or other materials provided with the
  20 *    distribution.
  21 *
  22 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
  23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
  26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33 */
  34
  35#ifndef _ASM_NLM_XLR_H
  36#define _ASM_NLM_XLR_H
  37
  38/* Platform UART functions */
  39struct uart_port;
  40unsigned int nlm_xlr_uart_in(struct uart_port *, int);
  41void nlm_xlr_uart_out(struct uart_port *, int, int);
  42
  43/* SMP helpers */
  44void xlr_wakeup_secondary_cpus(void);
  45
  46/* XLS B silicon "Rook" */
  47static inline unsigned int nlm_chip_is_xls_b(void)
  48{
  49        uint32_t prid = read_c0_prid();
  50
  51        return ((prid & 0xf000) == 0x4000);
  52}
  53
  54/*
  55 *  XLR chip types
  56 */
  57 /* The XLS product line has chip versions 0x[48c]? */
  58static inline unsigned int nlm_chip_is_xls(void)
  59{
  60        uint32_t prid = read_c0_prid();
  61
  62        return ((prid & 0xf000) == 0x8000 || (prid & 0xf000) == 0x4000 ||
  63                (prid & 0xf000) == 0xc000);
  64}
  65
  66#endif /* _ASM_NLM_XLR_H */
  67