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 */
  39 struct uart_port;
  40 unsigned int nlm_xlr_uart_in(struct uart_port *, int);
  41 void nlm_xlr_uart_out(struct uart_port *, int, int);
  42
  43 /* SMP support functions */
  44 struct irq_desc;
  45 void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc);
  46 void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc);
  47 int nlm_wakeup_secondary_cpus(u32 wakeup_mask);
  48 void nlm_smp_irq_init(void);
  49 void nlm_boot_smp_nmi(void);
  50 void prom_pre_boot_secondary_cpus(void);
  51
  52 extern struct plat_smp_ops nlm_smp_ops;
  53 extern unsigned long nlm_common_ebase;
  54
  55 /* XLS B silicon "Rook" */
  56 static inline unsigned int nlm_chip_is_xls_b(void)
  57 {
  58         uint32_t prid = read_c0_prid();
  59
  60         return ((prid & 0xf000) == 0x4000);
  61 }
  62
  63 /*
  64  *  XLR chip types
  65  */
  66  /* The XLS product line has chip versions 0x[48c]? */
  67 static inline unsigned int nlm_chip_is_xls(void)
  68 {
  69         uint32_t prid = read_c0_prid();
  70
  71         return ((prid & 0xf000) == 0x8000 || (prid & 0xf000) == 0x4000 ||
  72                 (prid & 0xf000) == 0xc000);
  73 }
  74
  75 #endif /* _ASM_NLM_XLR_H */