1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup lpc32xx_mmu |
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5 | * |
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6 | * @brief MMU support API. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2009-2011 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Obere Lagerstr. 30 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * The license and distribution terms for this file may be |
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19 | * found in the file LICENSE in this distribution or at |
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20 | * http://www.rtems.com/license/LICENSE. |
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21 | */ |
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22 | |
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23 | #ifndef LIBBSP_ARM_LPC32XX_MMU_H |
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24 | #define LIBBSP_ARM_LPC32XX_MMU_H |
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25 | |
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26 | #include <libcpu/arm-cp15.h> |
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27 | |
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28 | #ifdef __cplusplus |
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29 | extern "C" { |
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30 | #endif /* __cplusplus */ |
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31 | |
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32 | /** |
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33 | * @defgroup lpc32xx_mmu MMU Support |
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34 | * |
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35 | * @ingroup lpc32xx |
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36 | * |
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37 | * @brief MMU support. |
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38 | * |
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39 | * @{ |
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40 | */ |
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41 | |
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42 | #define LPC32XX_MMU_CLIENT_DOMAIN 15U |
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43 | |
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44 | #define LPC32XX_MMU_READ_ONLY \ |
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45 | ((LPC32XX_MMU_CLIENT_DOMAIN << ARM_MMU_SECT_DOMAIN_SHIFT) \ |
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46 | | ARM_MMU_SECT_DEFAULT) |
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47 | |
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48 | #define LPC32XX_MMU_READ_ONLY_CACHED \ |
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49 | (LPC32XX_MMU_READ_ONLY | ARM_MMU_SECT_C | ARM_MMU_SECT_B) |
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50 | |
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51 | #define LPC32XX_MMU_READ_WRITE \ |
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52 | ((LPC32XX_MMU_CLIENT_DOMAIN << ARM_MMU_SECT_DOMAIN_SHIFT) \ |
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53 | | ARM_MMU_SECT_AP_0 \ |
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54 | | ARM_MMU_SECT_DEFAULT) |
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55 | |
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56 | #define LPC32XX_MMU_READ_WRITE_CACHED \ |
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57 | (LPC32XX_MMU_READ_WRITE | ARM_MMU_SECT_C | ARM_MMU_SECT_B) |
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58 | |
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59 | /** |
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60 | * @brief Sets the @a section_flags for the address range [@a begin, @a end). |
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61 | * |
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62 | * @return Previous section flags of the first modified entry. |
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63 | */ |
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64 | static inline uint32_t lpc32xx_set_translation_table_entries( |
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65 | const void *begin, |
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66 | const void *end, |
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67 | uint32_t section_flags |
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68 | ) |
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69 | { |
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70 | return arm_cp15_set_translation_table_entries(begin, end, section_flags); |
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71 | } |
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72 | |
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73 | /** @} */ |
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74 | |
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75 | #ifdef __cplusplus |
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76 | } |
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77 | #endif /* __cplusplus */ |
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78 | |
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79 | #endif /* LIBBSP_ARM_LPC32XX_MMU_H */ |
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