include/asm-arm/arch-omap/tc.h

   1 /*
   2  * linux/include/asm-arm/arch-omap/tc.h
   3  *
   4  * OMAP Traffic Controller
   5  *
   6  * Copyright (C) 2004 Nokia Corporation
   7  * Author: Imre Deak <imre.deak@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2 of the License, or (at your
  12  * option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #ifndef __ASM_ARCH_TC_H
  25 #define __ASM_ARCH_TC_H
  26
  27 #define TCMIF_BASE              0xfffecc00
  28 #define OMAP_TC_OCPT1_PRIOR     (TCMIF_BASE + 0x00)
  29 #define OMAP_TC_EMIFS_PRIOR     (TCMIF_BASE + 0x04)
  30 #define OMAP_TC_EMIFF_PRIOR     (TCMIF_BASE + 0x08)
  31 #define EMIFS_CONFIG            (TCMIF_BASE + 0x0c)
  32 #define EMIFS_CS0_CONFIG        (TCMIF_BASE + 0x10)
  33 #define EMIFS_CS1_CONFIG        (TCMIF_BASE + 0x14)
  34 #define EMIFS_CS2_CONFIG        (TCMIF_BASE + 0x18)
  35 #define EMIFS_CS3_CONFIG        (TCMIF_BASE + 0x1c)
  36 #define EMIFF_SDRAM_CONFIG      (TCMIF_BASE + 0x20)
  37 #define EMIFF_MRS               (TCMIF_BASE + 0x24)
  38 #define TC_TIMEOUT1             (TCMIF_BASE + 0x28)
  39 #define TC_TIMEOUT2             (TCMIF_BASE + 0x2c)
  40 #define TC_TIMEOUT3             (TCMIF_BASE + 0x30)
  41 #define TC_ENDIANISM            (TCMIF_BASE + 0x34)
  42 #define EMIFF_SDRAM_CONFIG_2    (TCMIF_BASE + 0x3c)
  43 #define EMIF_CFG_DYNAMIC_WS     (TCMIF_BASE + 0x40)
  44 #define EMIFS_ACS0              (TCMIF_BASE + 0x50)
  45 #define EMIFS_ACS1              (TCMIF_BASE + 0x54)
  46 #define EMIFS_ACS2              (TCMIF_BASE + 0x58)
  47 #define EMIFS_ACS3              (TCMIF_BASE + 0x5c)
  48 #define OMAP_TC_OCPT2_PRIOR     (TCMIF_BASE + 0xd0)
  49
  50 /* external EMIFS chipselect regions */
  51 #define OMAP_CS0_PHYS           0x00000000
  52 #define OMAP_CS0_SIZE           SZ_64M
  53
  54 #define OMAP_CS1_PHYS           0x04000000
  55 #define OMAP_CS1_SIZE           SZ_64M
  56
  57 #define OMAP_CS1A_PHYS          OMAP_CS1_PHYS
  58 #define OMAP_CS1A_SIZE          SZ_32M
  59
  60 #define OMAP_CS1B_PHYS          (OMAP_CS1A_PHYS + OMAP_CS1A_SIZE)
  61 #define OMAP_CS1B_SIZE          SZ_32M
  62
  63 #define OMAP_CS2_PHYS           0x08000000
  64 #define OMAP_CS2_SIZE           SZ_64M
  65
  66 #define OMAP_CS2A_PHYS          OMAP_CS2_PHYS
  67 #define OMAP_CS2A_SIZE          SZ_32M
  68
  69 #define OMAP_CS2B_PHYS          (OMAP_CS2A_PHYS + OMAP_CS2A_SIZE)
  70 #define OMAP_CS2B_SIZE          SZ_32M
  71
  72 #define OMAP_CS3_PHYS           0x0c000000
  73 #define OMAP_CS3_SIZE           SZ_64M
  74
  75 #ifndef __ASSEMBLER__
  76
  77 /* EMIF Slow Interface Configuration Register */
  78 #define OMAP_EMIFS_CONFIG_REG   __REG32(EMIFS_CONFIG)
  79
  80 #define OMAP_EMIFS_CONFIG_FR            (1 << 4)
  81 #define OMAP_EMIFS_CONFIG_PDE           (1 << 3)
  82 #define OMAP_EMIFS_CONFIG_PWD_EN        (1 << 2)
  83 #define OMAP_EMIFS_CONFIG_BM            (1 << 1)
  84 #define OMAP_EMIFS_CONFIG_WP            (1 << 0)
  85
  86 #define EMIFS_CCS(n)            __REG32(EMIFS_CS0_CONFIG + (4 * (n)))
  87 #define EMIFS_ACS(n)            __REG32(EMIFS_ACS0 + (4 * (n)))
  88
  89 /* Almost all documentation for chip and board memory maps assumes
  90  * BM is clear.  Most devel boards have a switch to control booting
  91  * from NOR flash (using external chipselect 3) rather than mask ROM,
  92  * which uses BM to interchange the physical CS0 and CS3 addresses.
  93  */
  94 static inline u32 omap_cs0_phys(void)
  95 {
  96         return (OMAP_EMIFS_CONFIG_REG & OMAP_EMIFS_CONFIG_BM)
  97                         ?  OMAP_CS3_PHYS : 0;
  98 }
  99
 100 static inline u32 omap_cs3_phys(void)
 101 {
 102         return (OMAP_EMIFS_CONFIG_REG & OMAP_EMIFS_CONFIG_BM)
 103                         ? 0 : OMAP_CS3_PHYS;
 104 }
 105
 106 #endif  /* __ASSEMBLER__ */
 107
 108 #endif  /* __ASM_ARCH_TC_H */