4 * \brief Chip-specific system clock manager configuration
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6 * Copyright (c) 2012 Atmel Corporation. All rights reserved.
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12 * Redistribution and use in source and binary forms, with or without
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13 * modification, are permitted provided that the following conditions are met:
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15 * 1. Redistributions of source code must retain the above copyright notice,
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16 * this list of conditions and the following disclaimer.
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18 * 2. Redistributions in binary form must reproduce the above copyright notice,
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19 * this list of conditions and the following disclaimer in the documentation
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20 * and/or other materials provided with the distribution.
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22 * 3. The name of Atmel may not be used to endorse or promote products derived
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23 * from this software without specific prior written permission.
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25 * 4. This software may only be redistributed and used in connection with an
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26 * Atmel microcontroller product.
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28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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38 * POSSIBILITY OF SUCH DAMAGE.
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43 #ifndef CONF_CLOCK_H_INCLUDED
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44 #define CONF_CLOCK_H_INCLUDED
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46 //#define CONFIG_SYSCLK_INIT_CPUMASK 0
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47 //#define CONFIG_SYSCLK_INIT_PBAMASK ((1 << SYSCLK_USART2))
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48 //#define CONFIG_SYSCLK_INIT_PBBMASK ((1 << SYSCLK_HFLASHC_REGS))
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49 //#define CONFIG_SYSCLK_INIT_PBCMASK ((1 << SYSCLK_PM) | (1 << SYSCLK_SCIF) | (1 << SYSCLK_GPIO))
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50 //#define CONFIG_SYSCLK_INIT_PBDMASK ((1 << SYSCLK_BPM) | (1 << SYSCLK_BSCIF) | (1 << SYSCLK_AST))
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51 //#define CONFIG_SYSCLK_INIT_HSBMASK ((1 << SYSCLK_HFLASHC_DATA) | (SYSCLK_PBA_BRIDGE) | (SYSCLK_PBC_BRIDGE) | (SYSCLK_PBD_BRIDGE))
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53 //#define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_RCSYS
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54 //#define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_OSC0
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55 //#define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_PLL0
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56 //#define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_DFLL
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57 //#define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_RC80M
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58 #define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_RCFAST
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59 //#define CONFIG_SYSCLK_SOURCE SYSCLK_SRC_RC1M
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61 /* RCFAST frequency selection: 0 for 4MHz, 1 for 8MHz and 2 for 12MHz */
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62 //#define CONFIG_RCFAST_FRANGE 0
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63 //#define CONFIG_RCFAST_FRANGE 1
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64 #define CONFIG_RCFAST_FRANGE 2
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66 /* Fbus = Fsys / (2 ^ BUS_div) */
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67 #define CONFIG_SYSCLK_CPU_DIV 0
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68 #define CONFIG_SYSCLK_PBA_DIV 0
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69 #define CONFIG_SYSCLK_PBB_DIV 0
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70 #define CONFIG_SYSCLK_PBC_DIV 2
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71 #define CONFIG_SYSCLK_PBD_DIV 2
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73 //#define CONFIG_USBCLK_SOURCE USBCLK_SRC_OSC0
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74 //#define CONFIG_USBCLK_SOURCE USBCLK_SRC_PLL0
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76 /* Fusb = Fsys / USB_div */
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77 //#define CONFIG_USBCLK_DIV 1
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79 //#define CONFIG_PLL0_SOURCE PLL_SRC_OSC0
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81 /* Fpll0 = (Fclk * PLL_mul) / PLL_div */
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82 //#define CONFIG_PLL0_MUL (48000000UL / BOARD_OSC0_HZ)
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83 //#define CONFIG_PLL0_DIV 1
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85 //#define CONFIG_DFLL0_SOURCE GENCLK_SRC_OSC0
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86 //#define CONFIG_DFLL0_SOURCE GENCLK_SRC_RCSYS
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87 //#define CONFIG_DFLL0_SOURCE GENCLK_SRC_OSC32K
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88 //#define CONFIG_DFLL0_SOURCE GENCLK_SRC_RC80M
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89 //#define CONFIG_DFLL0_SOURCE GENCLK_SRC_RC32K
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91 /* Fdfll = (Fclk * DFLL_mul) / DFLL_div */
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92 //#define CONFIG_DFLL0_FREQ 96000000UL
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93 //#define CONFIG_DFLL0_MUL (CONFIG_DFLL0_FREQ / BOARD_OSC0_HZ)
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94 //#define CONFIG_DFLL0_DIV 2
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96 #endif /* CONF_CLOCK_H_INCLUDED */
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