/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011 Giovanni Di Sirio. This file is part of ChibiOS/RT. ChibiOS/RT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. ChibiOS/RT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /** * @file SPC56x/hal_lld.h * @brief SPC563 HAL subsystem low level driver header. * * @addtogroup HAL * @{ */ #ifndef _HAL_LLD_H_ #define _HAL_LLD_H_ #include "mpc563m.h" /*===========================================================================*/ /* Driver constants. */ /*===========================================================================*/ /** * @brief Defines the support for realtime counters in the HAL. */ #define HAL_IMPLEMENTS_COUNTERS FALSE /** * @brief Platform name. */ #define PLATFORM_NAME "SPC563M64" #define RFD_DIV2 0 /**< Divide VCO frequency by 2. */ #define RFD_DIV4 1 /**< Divide VCO frequency by 4. */ #define RFD_DIV8 2 /**< Divide VCO frequency by 8. */ #define RFD_DIV16 3 /**< Divide VCO frequency by 16.*/ /* The following settings are related to the FLASH controller, performance and stability depends on them, be careful.*/ #define BIUCR_BANK1_TOO 0x01000000 /**< Use settings for bank1 too.*/ #define BIUCR_MASTER7_PREFETCH 0x00800000 /**< Enable master 7 prefetch. */ #define BIUCR_MASTER6_PREFETCH 0x00400000 /**< Enable master 6 prefetch. */ #define BIUCR_MASTER5_PREFETCH 0x00200000 /**< Enable master 5 prefetch. */ #define BIUCR_MASTER4_PREFETCH 0x00100000 /**< Enable master 4 prefetch. */ #define BIUCR_MASTER3_PREFETCH 0x00080000 /**< Enable master 3 prefetch. */ #define BIUCR_MASTER2_PREFETCH 0x00040000 /**< Enable master 2 prefetch. */ #define BIUCR_MASTER1_PREFETCH 0x00020000 /**< Enable master 1 prefetch. */ #define BIUCR_MASTER0_PREFETCH 0x00010000 /**< Enable master 0 prefetch. */ #define BIUCR_APC_MASK 0x0000E000 /**< APC field mask. */ #define BIUCR_APC_0 (0 << 13) /**< No additional hold cycles. */ #define BIUCR_APC_1 (1 << 13) /**< 1 additional hold cycle. */ #define BIUCR_APC_2 (2 << 13) /**< 2 additional hold cycles. */ #define BIUCR_APC_3 (3 << 13) /**< 3 additional hold cycles. */ #define BIUCR_APC_4 (4 << 13) /**< 4 additional hold cycles. */ #define BIUCR_APC_5 (5 << 13) /**< 5 additional hold cycles. */ #define BIUCR_APC_6 (6 << 13) /**< 6 additional hold cycles. */ #define BIUCR_WWSC_MASK 0x00001800 /**< WWSC field mask. */ #define BIUCR_WWSC_0 (0 << 11) /**< No write wait states. */ #define BIUCR_WWSC_1 (1 << 11) /**< 1 write wait state. */ #define BIUCR_WWSC_2 (2 << 11) /**< 2 write wait states. */ #define BIUCR_WWSC_3 (3 << 11) /**< 3 write wait states. */ #define BIUCR_RWSC_MASK 0x00001800 /**< RWSC field mask. */ #define BIUCR_RWSC_0 (0 << 8) /**< No read wait states. */ #define BIUCR_RWSC_1 (1 << 8) /**< 1 read wait state. */ #define BIUCR_RWSC_2 (2 << 8) /**< 2 read wait states. */ #define BIUCR_RWSC_3 (3 << 8) /**< 3 read wait states. */ #define BIUCR_RWSC_4 (4 << 8) /**< 4 read wait states. */ #define BIUCR_RWSC_5 (5 << 8) /**< 5 read wait states. */ #define BIUCR_RWSC_6 (6 << 8) /**< 6 read wait states. */ #define BIUCR_RWSC_7 (7 << 8) /**< 7 read wait states. */ #define BIUCR_DPFEN 0x00000040 /**< Data prefetch enable. */ #define BIUCR_IPFEN 0x00000010 /**< Instr. prefetch enable. */ #define BIUCR_PFLIM_MASK 0x00000060 /**< PFLIM field mask. */ #define BIUCR_PFLIM_NO (0 << 1) /**< No prefetching. */ #define BIUCR_PFLIM_ON_MISS (1 << 1) /**< Prefetch on miss. */ #define BIUCR_PFLIM_ON_HITMISS (2 << 1) /**< Prefetch on hit and miss. */ #define BIUCR_BFEN 0x00000001 /**< Flash buffering enable. */ /*===========================================================================*/ /* Driver pre-compile time settings. */ /*===========================================================================*/ /** * @brief Clock bypass. * @note If set to @p TRUE then the PLL is not started and initialized, the * external clock is used as-is and the other clock-related settings * are ignored. */ #if !defined(SPC563_CLK_BYPASS) || defined(__DOXYGEN__) #define SPC563_CLK_BYPASS FALSE #endif /** * @brief Disables the overclock checks. */ #if !defined(SPC563_ALLOW_OVERCLOCK) || defined(__DOXYGEN__) #define SPC563_ALLOW_OVERCLOCK FALSE #endif /** * @brief External clock pre-divider. * @note Must be in range 0...14. * @note The effective divider factor is this value plus one. */ #if !defined(SPC563_CLK_PREDIV) || defined(__DOXYGEN__) #define SPC563_CLK_PREDIV 2 #endif /** * @brief Multiplication factor divider. * @note Must be in range 32...96. */ #if !defined(SPC563_CLK_MFD) || defined(__DOXYGEN__) #define SPC563_CLK_MFD 80 #endif /** * @brief Reduced frequency divider. */ #if !defined(SPC563_CLK_RFD) || defined(__DOXYGEN__) #define SPC563_CLK_RFD RFD_DIV4 #endif /** * @brief Flash buffer and prefetching settings. * @note Please refer to the SPC563M64 reference manual about the meaning * of the following bits, if in doubt DO NOT MODIFY IT. * @note Do not specify the APC, WWSC, RWSC bits in this value because * those are calculated from the system clock and ORed with this * value. */ #if !defined(SPC563_FLASH_BIUCR) || defined(__DOXYGEN__) #define SPC563_FLASH_BIUCR (BIUCR_BANK1_TOO | \ BIUCR_MASTER4_PREFETCH | \ BIUCR_MASTER0_PREFETCH | \ BIUCR_DPFEN | \ BIUCR_IPFEN | \ BIUCR_PFLIM_ON_MISS | \ BIUCR_BFEN) #endif /*===========================================================================*/ /* Derived constants and error checks. */ /*===========================================================================*/ #if (SPC563_CLK_PREDIV < 0) || (SPC563_CLK_PREDIV > 14) #error "invalid SPC563_CLK_PREDIV value specified" #endif #if (SPC563_CLK_MFD < 32) || (SPC563_CLK_MFD > 96) #error "invalid SPC563_CLK_MFD value specified" #endif #if (SPC563_CLK_RFD != RFD_DIV2) && (SPC563_CLK_RFD != RFD_DIV4) && \ (SPC563_CLK_RFD != RFD_DIV8) && (SPC563_CLK_RFD != RFD_DIV16) #error "invalid SPC563_CLK_RFD value specified" #endif /** * @brief PLL output clock. */ #define SPC563_PLLCLK ((EXTCLK / (SPC563_CLK_PREDIV + 1)) * SPC563_CLK_MFD) #if (SPC563_PLLCLK < 256000000) || (SPC563_PLLCLK > 512000000) #error "VCO frequency out of the acceptable range (256...512)" #endif /** * @brief PLL output clock. */ #if !SPC563_CLK_BYPASS || defined(__DOXYGEN__) #define SPC563_SYSCLK (SPC563_PLLCLK / (1 << (SPC563_CLK_RFD + 1))) #else #define SPC563_SYSCLK EXTCLK #endif #if (SPC563_SYSCLK > 80000000) && !SPC563_ALLOW_OVERCLOCK #error "System clock above maximum rated frequency (80MHz)" #endif /** * @brief Flash wait states are a function of the system clock. */ #if (SPC563_SYSCLK <= 30000000) || defined(__DOXYGEN__) #define SPC563_FLASH_WS (BIUCR_APC_0 | BIUCR_RWSC_0 | BIUCR_WWSC_1) #elif SPC563_SYSCLK <= 60000000 #define SPC563_FLASH_WS (BIUCR_APC_1 | BIUCR_RWSC_1 | BIUCR_WWSC_1) #else #define SPC563_FLASH_WS (BIUCR_APC_2 | BIUCR_RWSC_2 | BIUCR_WWSC_1) #endif /*===========================================================================*/ /* Driver data structures and types. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver macros. */ /*===========================================================================*/ /*===========================================================================*/ /* External declarations. */ /*===========================================================================*/ #ifdef __cplusplus extern "C" { #endif void hal_lld_init(void); void spc563_clock_init(void); #ifdef __cplusplus } #endif #endif /* _HAL_LLD_H_ */ /** @} */