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1 #ifndef CYGONCE_HAL_ARM_XSCALE_GRG_GRG_H |
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2 #define CYGONCE_HAL_ARM_XSCALE_GRG_GRG_H |
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3 |
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4 /*============================================================================= |
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5 // |
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6 // grg.h |
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7 // |
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8 // Platform specific support (register layout, etc) |
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9 // |
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10 //============================================================================= |
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11 //####ECOSGPLCOPYRIGHTBEGIN#### |
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12 // ------------------------------------------- |
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13 // This file is part of eCos, the Embedded Configurable Operating System. |
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc. |
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15 // |
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16 // eCos is free software; you can redistribute it and/or modify it under |
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17 // the terms of the GNU General Public License as published by the Free |
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18 // Software Foundation; either version 2 or (at your option) any later version. |
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19 // |
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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23 // for more details. |
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24 // |
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25 // You should have received a copy of the GNU General Public License along |
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26 // with eCos; if not, write to the Free Software Foundation, Inc., |
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27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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28 // |
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29 // As a special exception, if other files instantiate templates or use macros |
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30 // or inline functions from this file, or you compile this file and link it |
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31 // with other works to produce a work based on this file, this file does not |
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32 // by itself cause the resulting work to be covered by the GNU General Public |
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33 // License. However the source code for this file must still be made available |
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34 // in accordance with section (3) of the GNU General Public License. |
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35 // |
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36 // This exception does not invalidate any other reasons why a work based on |
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37 // this file might be covered by the GNU General Public License. |
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38 // |
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39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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40 // at http://sources.redhat.com/ecos/ecos-license/ |
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41 // ------------------------------------------- |
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42 //####ECOSGPLCOPYRIGHTEND#### |
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43 //============================================================================= |
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44 //#####DESCRIPTIONBEGIN#### |
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45 // |
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46 // Author(s): msalter |
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47 // Contributors: msalter |
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48 // Date: 2003-02-05 |
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49 // Purpose: Intel GRG specific support routines |
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50 // Description: |
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51 // Usage: #include <cyg/hal/grg.h> |
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52 // |
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53 //####DESCRIPTIONEND#### |
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54 // |
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55 //===========================================================================*/ |
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56 |
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57 #include <pkgconf/system.h> |
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58 #include CYGHWR_MEMORY_LAYOUT_H |
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59 #include <pkgconf/hal_arm_xscale_grg.h> |
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60 #include <cyg/hal/hal_ixp425.h> |
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61 |
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62 // These must match setup in the page table in hal_platform_extras.h |
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63 #define SDRAM_PHYS_BASE 0x00000000 |
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64 #define SDRAM_BASE 0x00000000 |
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65 #define SDRAM_UNCACHED_BASE 0x10000000 |
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66 #define SDRAM_SIZE 0x02000000 // 32MB |
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67 |
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68 // CS0 (flash optimum timing) |
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69 #define IXP425_EXP_CS0_INIT \ |
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70 (EXP_ADDR_T(3) | EXP_SETUP_T(3) | EXP_STROBE_T(15) | EXP_HOLD_T(3) | \ |
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71 EXP_RECOVERY_T(15) | EXP_SZ_16M | EXP_WR_EN | EXP_BYTE_RD16 | EXP_CS_EN) |
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72 |
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73 #define IXP425_SDRAM_CONFIG_INIT (SDRAM_CONFIG_CAS_3 | SDRAM_CONFIG_2x8Mx16) |
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74 #define IXP425_SDRAM_REFRESH_CNT 0x81A |
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75 #define IXP425_SDRAM_SET_MODE_CMD SDRAM_IR_MODE_SET_CAS3 |
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76 |
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77 |
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78 // ------------------------------------------------------------------------ |
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79 // No Hex Display |
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80 // |
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81 #ifdef __ASSEMBLER__ |
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82 // Display hex digits in 'value' not masked by 'mask'. |
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83 .macro DISPLAY value, reg0, reg1 |
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84 .endm |
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85 #else |
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86 static inline void HEX_DISPLAY(int value) |
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87 { |
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88 } |
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89 #endif // __ASSEMBLER__ |
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90 |
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91 // ------------------------------------------------------------------------ |
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92 |
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93 #endif // CYGONCE_HAL_ARM_XSCALE_GRG_GRG_H |
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94 // EOF grg.h |
