From 7956cba1bf92dce719111e05dce9905c99364563 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Tue, 18 Sep 2012 13:13:53 +0000 Subject: [PATCH] git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4689 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/hal/platforms/SPC560Pxx/hal_lld.c | 70 +++++++ os/hal/platforms/SPC560Pxx/hal_lld.h | 294 +++++++++++++++++++++++++-- 2 files changed, 344 insertions(+), 20 deletions(-) diff --git a/os/hal/platforms/SPC560Pxx/hal_lld.c b/os/hal/platforms/SPC560Pxx/hal_lld.c index b8c45f32a..3992aba8b 100644 --- a/os/hal/platforms/SPC560Pxx/hal_lld.c +++ b/os/hal/platforms/SPC560Pxx/hal_lld.c @@ -55,6 +55,11 @@ * @notapi */ void hal_lld_init(void) { + + /* The system is switched to the RUN0 mode, the default for normal + operations.*/ + if (halSPC560PSetRunMode(SPC560P_RUNMODE_RUN0) == CH_FAILED) + chSysHalt(); } /** @@ -66,6 +71,71 @@ void hal_lld_init(void) { * @special */ void spc560p_clock_init(void) { + + /* Waiting for IRC stabilization before attempting anything else.*/ + while (!ME.GS.B.S_RC) + ; + +#if !SPC560P_NO_INIT + +#if defined(SPC560P_OSC_BYPASS) + /* If the board is equipped with an oscillator instead of a xtal then the + bypass must be activated.*/ + CGM.OSC_CTL.B.OSCBYP = TRUE; +#endif /* SPC560P_ENABLE_XOSC */ + + /* Initialization of the FMPLLs settings.*/ + CGM.FMPLL[0].CR.R = SPC560P_FMPLL0_ODF | + (SPC560P_FMPLL0_IDF_VALUE << 26) | + (SPC560P_FMPLL0_NDIV_VALUE << 16); + CGM.FMPLL[0].MR.R = 0; /* TODO: Add a setting. */ + CGM.FMPLL[1].CR.R = SPC560P_FMPLL1_ODF | + (SPC560P_FMPLL1_IDF_VALUE << 26) | + (SPC560P_FMPLL1_NDIV_VALUE << 16); + CGM.FMPLL[1].MR.R = 0; /* TODO: Add a setting. */ + + /* Run modes initialization.*/ + ME.MER.R = SPC560P_ME_ME_BITS; /* Enabled run modes. */ + ME.TEST.R = SPC560P_ME_TEST_MC_BITS; /* TEST run mode. */ + ME.SAFE.R = SPC560P_ME_SAFE_MC_BITS; /* SAFE run mode. */ + ME.DRUN.R = SPC560P_ME_DRUN_MC_BITS; /* DRUN run mode. */ + ME.RUN[0].R = SPC560P_ME_RUN0_MC_BITS; /* RUN0 run mode. */ + ME.RUN[1].R = SPC560P_ME_RUN1_MC_BITS; /* RUN0 run mode. */ + ME.RUN[2].R = SPC560P_ME_RUN2_MC_BITS; /* RUN0 run mode. */ + ME.RUN[3].R = SPC560P_ME_RUN3_MC_BITS; /* RUN0 run mode. */ + ME.HALT0.R = SPC560P_ME_HALT0_MC_BITS; /* HALT0 run mode. */ + ME.STOP0.R = SPC560P_ME_STOP0_MC_BITS; /* STOP0 run mode. */ + + /* Switches again to DRUN mode (current mode) in order to update the + settings.*/ + if (halSPC560PSetRunMode(SPC560P_RUNMODE_DRUN) == CH_FAILED) + chSysHalt(); + +#endif /* !SPC560P_NO_INIT */ +} + +/** + * @brief Switches the system to the specified run mode. + */ +bool_t halSPC560PSetRunMode(spc560prunmode_t mode) { + + /* Starts a transition process.*/ + ME.MCTL.R = SPC560P_ME_MCTL_MODE(mode) | SPC560P_ME_MCTL_KEY; + ME.MCTL.R = SPC560P_ME_MCTL_MODE(mode) | SPC560P_ME_MCTL_KEY_INV; + + /* Waits the transition process to start.*/ + while (!ME.GS.B.S_MTRANS) + ; + + /* Waits the transition process to end.*/ + while (ME.GS.B.S_MTRANS) + ; + + /* Verifies that the mode has been effectively switched.*/ + if (ME.GS.B.S_CURRENTMODE != mode) + return TRUE; + + return FALSE; } /** @} */ diff --git a/os/hal/platforms/SPC560Pxx/hal_lld.h b/os/hal/platforms/SPC560Pxx/hal_lld.h index bec68872b..706b7f5c9 100644 --- a/os/hal/platforms/SPC560Pxx/hal_lld.h +++ b/os/hal/platforms/SPC560Pxx/hal_lld.h @@ -24,6 +24,7 @@ * @pre This module requires the following macros to be defined in the * @p board.h file: * - SPC560P_XOSC_CLK. + * - SPC560P_OSC_BYPASS (optionally). * . * * @addtogroup HAL @@ -112,10 +113,65 @@ * @name FMPLL_CR register bits definitions * @{ */ -#define SPC560P_FMPLL_ODF_DIV2 (0 << 24) -#define SPC560P_FMPLL_ODF_DIV4 (1 << 24) -#define SPC560P_FMPLL_ODF_DIV8 (2 << 24) -#define SPC560P_FMPLL_ODF_DIV16 (3 << 24) +#define SPC560P_FMPLL_ODF_DIV2 (0U << 24) +#define SPC560P_FMPLL_ODF_DIV4 (1U << 24) +#define SPC560P_FMPLL_ODF_DIV8 (2U << 24) +#define SPC560P_FMPLL_ODF_DIV16 (3U << 24) +/** @} */ + +/** + * @name ME_ME register bits definitions + * @{ + */ +#define SPC560P_ME_ME_RESET (1U << 0) +#define SPC560P_ME_ME_TEST (2U << 0) +#define SPC560P_ME_ME_SAFE (4U << 0) +#define SPC560P_ME_ME_DRUN (8U << 0) +#define SPC560P_ME_ME_RUN0 (16U << 0) +#define SPC560P_ME_ME_RUN1 (32U << 0) +#define SPC560P_ME_ME_RUN2 (64U << 0) +#define SPC560P_ME_ME_RUN3 (128U << 0) +#define SPC560P_ME_ME_HALT0 (256U << 0) +#define SPC560P_ME_ME_STOP0 (1024U << 0) +/** @} */ + +/** + * @name ME_xxx_MC registers bits definitions + * @{ + */ +#define SPC560P_ME_MC_SYSCLK_MASK (15U << 0) +#define SPC560P_ME_MC_SYSCLK(n) ((n) << 0) +#define SPC560P_ME_MC_SYSCLK_IRC SPC560P_ME_MC_SYSCLK(0) +#define SPC560P_ME_MC_SYSCLK_XOSC SPC560P_ME_MC_SYSCLK(2) +#define SPC560P_ME_MC_SYSCLK_FMPLL0 SPC560P_ME_MC_SYSCLK(4) +#define SPC560P_ME_MC_SYSCLK_FMPLL1 SPC560P_ME_MC_SYSCLK(5) +#define SPC560P_ME_MC_SYSCLK_DISABLED SPC560P_ME_MC_SYSCLK(15) +#define SPC560P_ME_MC_IRCON (1U << 4) +#define SPC560P_ME_MC_XOSC0ON (1U << 5) +#define SPC560P_ME_MC_PLL0ON (1U << 6) +#define SPC560P_ME_MC_PLL1ON (1U << 7) +#define SPC560P_ME_MC_CFLAON_MASK (3U << 16) +#define SPC560P_ME_MC_CFLAON(n) ((n) << 16) +#define SPC560P_ME_MC_CFLAON_PD (1U << 16) +#define SPC560P_ME_MC_CFLAON_LP (2U << 16) +#define SPC560P_ME_MC_CFLAON_NORMAL (3U << 16) +#define SPC560P_ME_MC_DFLAON_MASK (3U << 18) +#define SPC560P_ME_MC_DFLAON(n) ((n) << 18) +#define SPC560P_ME_MC_DFLAON_PD (1U << 18) +#define SPC560P_ME_MC_DFLAON_LP (2U << 18) +#define SPC560P_ME_MC_DFLAON_NORMAL (3U << 18) +#define SPC560P_ME_MC_MVRON (1U << 20) +#define SPC560P_ME_MC_PDO (1U << 23) +/** @} */ + +/** + * @name ME_MCTL register bits definitions + * @{ + */ +#define SPC560P_ME_MCTL_KEY 0x5AF0U +#define SPC560P_ME_MCTL_KEY_INV 0xA50FU +#define SPC560P_ME_MCTL_MODE_MASK (15U << 28) +#define SPC560P_ME_MCTL_MODE(n) ((n) << 28) /** @} */ /*===========================================================================*/ @@ -123,13 +179,10 @@ /*===========================================================================*/ /** - * @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. + * @brief Disables the clocks initialization in the HAL. */ -#if !defined(SPC560P_CLK_BYPASS) || defined(__DOXYGEN__) -#define SPC560P_CLK_BYPASS FALSE +#if !defined(SPC560P_NO_INIT) || defined(__DOXYGEN__) +#define SPC560P_NO_INIT FALSE #endif /** @@ -163,6 +216,159 @@ #define SPC560P_FMPLL0_ODF SPC560P_FMPLL_ODF_DIV4 #endif +/** + * @brief FMPLL1 IDF divider value. + * @note The default value is calculated for XOSC=40MHz and PHI=64MHz. + */ +#if !defined(SPC560P_FMPLL1_IDF_VALUE) || defined(__DOXYGEN__) +#define SPC560P_FMPLL1_IDF_VALUE 5 +#endif + +/** + * @brief FMPLL1 NDIV divider value. + * @note The default value is calculated for XOSC=40MHz and PHI=64MHz. + */ +#if !defined(SPC560P_FMPLL1_NDIV_VALUE) || defined(__DOXYGEN__) +#define SPC560P_FMPLL1_NDIV_VALUE 60 +#endif + +/** + * @brief FMPLL1 ODF divider value. + * @note The default value is calculated for XOSC=40MHz and PHI=64MHz. + */ +#if !defined(SPC560P_FMPLL1_ODF) || defined(__DOXYGEN__) +#define SPC560P_FMPLL1_ODF SPC560P_FMPLL_ODF_DIV4 +#endif + +/** + * @brief Active run modes in ME_ME register. + * @note Modes RESET, SAFE, DRUN, and RUN0 modes are always enabled, there + * is no need to specify them. + */ +#if !defined(SPC560P_ME_ME_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_ME_BITS 0 +#endif + +/** + * @brief TEST mode settings. + */ +#if !defined(SPC560P_ME_TEST_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_TEST_MC_BITS (SPC560P_ME_MC_SYSCLK_IRC | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief SAFE mode settings. + */ +#if !defined(SPC560P_ME_SAFE_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_SAFE_MC_BITS (SPC560P_ME_MC_PDO) + +#endif + +/** + * @brief DRUN mode settings. + */ +#if !defined(SPC560P_ME_DRUN_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_DRUN_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief RUN0 mode settings. + */ +#if !defined(SPC560P_ME_RUN0_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_RUN0_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief RUN1 mode settings. + */ +#if !defined(SPC560P_ME_RUN1_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_RUN1_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief RUN2 mode settings. + */ +#if !defined(SPC560P_ME_RUN2_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_RUN2_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief RUN3 mode settings. + */ +#if !defined(SPC560P_ME_RUN3_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_RUN3_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief HALT0 mode settings. + */ +#if !defined(SPC560P_ME_HALT0_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_HALT0_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + +/** + * @brief STOP0 mode settings. + */ +#if !defined(SPC560P_ME_STOP0_MC_BITS) || defined(__DOXYGEN__) +#define SPC560P_ME_STOP0_MC_BITS (SPC560P_ME_MC_SYSCLK_FMPLL0 | \ + SPC560P_ME_MC_IRCON | \ + SPC560P_ME_MC_XOSC0ON | \ + SPC560P_ME_MC_PLL0ON | \ + SPC560P_ME_MC_PLL1ON | \ + SPC560P_ME_MC_CFLAON_NORMAL | \ + SPC560P_ME_MC_DFLAON_NORMAL | \ + SPC560P_ME_MC_MVRON) +#endif + /*===========================================================================*/ /* Derived constants and error checks. */ /*===========================================================================*/ @@ -196,7 +402,6 @@ #error "invalid SPC560P_FMPLL0_ODF value specified" #endif - /** * @brief SPC560P_FMPLL0_VCO_CLK clock point. */ @@ -210,30 +415,78 @@ #endif /** - * @brief SPC560P_XOSC_CLK clock point. + * @brief SPC560P_FMPLL0_CLK clock point. */ #define SPC560P_FMPLL0_CLK \ (SPC560P_FMPLL0_VCO_CLK / SPC560P_FMPLL0_ODF_VALUE) /* Check on SPC560P_FMPLL0_CLK.*/ -#if SPC560P_FMPLL0_CLK > SPC560P_FMPLL0_CLK_MAX +#if (SPC560P_FMPLL0_CLK > SPC560P_FMPLL0_CLK_MAX) && !SPC560P_ALLOW_OVERCLOCK #error "SPC560P_FMPLL0_CLK outside acceptable range (0...SPC560P_FMPLL0_CLK_MAX)" #endif -/* FMPLL0 activation conditions.*/ -#if 1 || defined(__DOXYGEN__) -/** - * @brief FMPLL0 activation flag. - */ -#define SPC560P_ACTIVATE_FMPLL0 TRUE +/* Check on SPC560P_FMPLL1_IDF_VALUE.*/ +#if (SPC560P_FMPLL1_IDF_VALUE < 1) || (SPC560P_FMPLL1_IDF_VALUE > 15) +#error "invalid SPC560P_FMPLL1_IDF_VALUE value specified" +#endif + +/* Check on SPC560P_FMPLL1_NDIV_VALUE.*/ +#if (SPC560P_FMPLL1_NDIV_VALUE < 32) || (SPC560P_FMPLL1_NDIV_VALUE > 96) +#error "invalid SPC560P_FMPLL1_NDIV_VALUE value specified" +#endif + +/* Check on SPC560P_FMPLL1_ODF.*/ +#if (SPC560P_FMPLL1_ODF == SPC560P_FMPLL_ODF_DIV2) +#define SPC560P_FMPLL1_ODF_VALUE 2 +#elif (SPC560P_FMPLL1_ODF == SPC560P_FMPLL_ODF_DIV4) +#define SPC560P_FMPLL1_ODF_VALUE 4 +#elif (SPC560P_FMPLL1_ODF == SPC560P_FMPLL_ODF_DIV8) +#define SPC560P_FMPLL1_ODF_VALUE 8 +#elif (SPC560P_FMPLL1_ODF == SPC560P_FMPLL_ODF_DIV16) +#define SPC560P_FMPLL1_ODF_VALUE 16 #else -#define SPC560P_ACTIVATE_FMPLL0 FALSE +#error "invalid SPC560P_FMPLL1_ODF value specified" +#endif + +/** + * @brief SPC560P_FMPLL1_VCO_CLK clock point. + */ +#define SPC560P_FMPLL1_VCO_CLK \ + ((SPC560P_XOSC_CLK / SPC560P_FMPLL1_IDF_VALUE) * SPC560P_FMPLL1_NDIV_VALUE) + +/* Check on FMPLL1 VCO output.*/ +#if (SPC560P_FMPLL1_VCO_CLK < SPC560P_FMPLLVCO_MIN) || \ + (SPC560P_FMPLL1_VCO_CLK > SPC560P_FMPLLVCO_MAX) +#error "SPC560P_FMPLL1_CLK outside acceptable range (SPC560P_FMPLLVCO_MIN...SPC560P_FMPLLVCO_MAX)" +#endif + +/** + * @brief SPC560P_FMPLL1_CLK clock point. + */ +#define SPC560P_FMPLL1_CLK \ + (SPC560P_FMPLL1_VCO_CLK / SPC560P_FMPLL1_ODF_VALUE) + +/* Check on SPC560P_FMPLL1_CLK.*/ +#if (SPC560P_FMPLL1_CLK > SPC560P_FMPLL1_CLK_MAX) && !SPC560P_ALLOW_OVERCLOCK +#error "SPC560P_FMPLL1_CLK outside acceptable range (0...SPC560P_FMPLL1_CLK_MAX)" #endif /*===========================================================================*/ /* Driver data structures and types. */ /*===========================================================================*/ +typedef enum { + SPC560P_RUNMODE_TEST = 1, + SPC560P_RUNMODE_SAFE = 2, + SPC560P_RUNMODE_DRUN = 3, + SPC560P_RUNMODE_RUN0 = 4, + SPC560P_RUNMODE_RUN1 = 5, + SPC560P_RUNMODE_RUN2 = 6, + SPC560P_RUNMODE_RUN3 = 7, + SPC560P_RUNMODE_HALT0 = 8, + SPC560P_RUNMODE_STOP0 = 10 +} spc560prunmode_t; + /*===========================================================================*/ /* Driver macros. */ /*===========================================================================*/ @@ -247,6 +500,7 @@ extern "C" { #endif void hal_lld_init(void); void spc560p_clock_init(void); + bool_t halSPC560PSetRunMode(spc560prunmode_t mode); #ifdef __cplusplus } #endif