arch/arm/mach-bcmring/clock.h

   1 /*****************************************************************************
   2 * Copyright 2001 - 2009 Broadcom Corporation.  All rights reserved.
   3 *
   4 * Unless you and Broadcom execute a separate written software license
   5 * agreement governing use of this software, this software is licensed to you
   6 * under the terms of the GNU General Public License version 2, available at
   7 * http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
   8 *
   9 * Notwithstanding the above, under no circumstances may you combine this
  10 * software in any way with any other Broadcom software provided under a
  11 * license other than the GPL, without Broadcom's express prior written
  12 * consent.
  13 *****************************************************************************/
  14 #include <mach/csp/chipcHw_def.h>
  15
  16 #define CLK_TYPE_PRIMARY         1      /* primary clock must NOT have a parent */
  17 #define CLK_TYPE_PLL1            2      /* PPL1 */
  18 #define CLK_TYPE_PLL2            4      /* PPL2 */
  19 #define CLK_TYPE_PROGRAMMABLE    8      /* programmable clock rate */
  20 #define CLK_TYPE_BYPASSABLE      16     /* parent can be changed */
  21
  22 #define CLK_MODE_XTAL            1      /* clock source is from crystal */
  23
  24 struct clk {
  25         const char *name;       /* clock name */
  26         unsigned int type;      /* clock type */
  27         unsigned int mode;      /* current mode */
  28         volatile int use_bypass;        /* indicate if it's in bypass mode */
  29         chipcHw_CLOCK_e csp_id; /* clock ID for CSP CHIPC */
  30         unsigned long rate_hz;  /* clock rate in Hz */
  31         unsigned int use_cnt;   /* usage count */
  32         struct clk *parent;     /* parent clock */
  33 };