From 996d7e3127550c46f47c84997afd4646caa4380d Mon Sep 17 00:00:00 2001 From: patacongo Date: Sun, 17 Jan 2010 17:55:13 +0000 Subject: [PATCH] Add SAM3U clock and systick init logic git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2511 42af7a65-404d-4744-a932-0658087f49c3 --- arch/arm/src/sam3u/Make.defs | 3 +- arch/arm/src/sam3u/sam3u_clockconfig.c | 308 +++++++++++++++++++++++++ arch/arm/src/sam3u/sam3u_internal.h | 31 ++- arch/arm/src/sam3u/sam3u_lowputc.c | 208 +++++++++++++++++ arch/arm/src/sam3u/sam3u_matrix.h | 200 ++++++++-------- arch/arm/src/sam3u/sam3u_pmc.h | 7 +- arch/arm/src/sam3u/sam3u_start.c | 2 +- arch/arm/src/sam3u/sam3u_supc.h | 16 +- arch/arm/src/sam3u/sam3u_timerisr.c | 162 +++++++++++++ 9 files changed, 820 insertions(+), 117 deletions(-) create mode 100755 arch/arm/src/sam3u/sam3u_clockconfig.c create mode 100755 arch/arm/src/sam3u/sam3u_lowputc.c create mode 100755 arch/arm/src/sam3u/sam3u_timerisr.c diff --git a/arch/arm/src/sam3u/Make.defs b/arch/arm/src/sam3u/Make.defs index 66a6ad7564..dd66295be1 100755 --- a/arch/arm/src/sam3u/Make.defs +++ b/arch/arm/src/sam3u/Make.defs @@ -45,5 +45,6 @@ CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \ up_usestack.c up_doirq.c up_hardfault.c up_svcall.c CHIP_ASRCS = -CHIP_CSRCS = sam3u_irq.c sam3u_start.c +CHIP_CSRCS = sam3u_clockconfig.c sam3u_irq.c sam3u_lowputc.c sam3u_start.c \ + sam3u_timerisr.c diff --git a/arch/arm/src/sam3u/sam3u_clockconfig.c b/arch/arm/src/sam3u/sam3u_clockconfig.c new file mode 100755 index 0000000000..6ff3c8329b --- /dev/null +++ b/arch/arm/src/sam3u/sam3u_clockconfig.c @@ -0,0 +1,308 @@ +/**************************************************************************** + * arch/arm/src/sam3u/sam3u_clockconfig.c + * arch/arm/src/chip/sam3u_clockconfig.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "up_arch.h" +#include "up_internal.h" +#include "sam3u_internal.h" +#include "sam3u_pmc.h" +#include "sam3u_eefc.h" +#include "sam3u_wdt.h" +#include "sam3u_supc.h" +#include "sam3u_matrix.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* PMC register settings based on the board configuration values defined + * in board.h + */ + +#define CKGR_MOR_KEY (0x37 << CKGR_MOR_KEY_SHIFT) +#define SUPR_CR_KEY (0xa5 << SUPC_CR_KEY_SHIFT) + +#define BOARD_CKGR_MOR (CKGR_MOR_KEY|BOARD_CKGR_MOR_MOSCXTST|\ + CKGR_MOR_MOSCRCEN|CKGR_MOR_MOSCXTEN) + +#define BOARD_CKGR_PLLAR (CKGR_PLLAR_ONE|BOARD_CKGR_PLLAR_MULA|\ + BOARD_CKGR_PLLAR_STMODE|BOARD_CKGR_PLLAR_PLLACOUNT|\ + BOARD_CKGR_PLLAR_DIVA) + +#define BOARD_PMC_MCKR_FAST (BOARD_PMC_MCKR_PRES|PMC_MCKR_CSS_MAIN) +#define BOARD_PMC_MCKR (BOARD_PMC_MCKR_PRES|BOARD_PMC_MCKR_CSS) + +#define BOARD_CKGR_UCKR (BOARD_CKGR_UCKR_UPLLCOUNT|CKGR_UCKR_UPLLEN) + + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: sam3u_efcsetup + * + * Description: + * Configure 2 waitstates for embedded flash access + * + ****************************************************************************/ + +static inline void sam3u_efcsetup(void) +{ + putreg32((2 << EEFC_FMR_FWS_SHIFT), SAM3U_EEFC0_FMR); + putreg32((2 << EEFC_FMR_FWS_SHIFT), SAM3U_EEFC1_FMR); +} + +/**************************************************************************** + * Name: sam3u_wdtsetup + * + * Description: + * Disable the watchdog timer + * + ****************************************************************************/ + +static inline void sam3u_wdtsetup(void) +{ + putreg32(WDT_MR_WDDIS, SAM3U_WDT_MR); +} + +/**************************************************************************** + * Name: sam3u_supcsetup + * + * Description: + * Select the external slow clock + * + ****************************************************************************/ + +static inline void sam3u_supcsetup(void) +{ + /* Check if the 32-kHz is already selected */ + + if ((getreg32(SAM3U_SUPC_SR) & SUPC_SR_OSCSEL) == 0) + { + uint32_t delay; + putreg32((SUPC_CR_XTALSEL|SUPR_CR_KEY), SAM3U_SUPC_CR); + for (delay = 0; + (getreg32(SAM3U_SUPC_SR) & SUPC_SR_OSCSEL) == 0 && delay < UINT32_MAX; + delay++); + } +} + +/**************************************************************************** + * Name: sam3u_pmcwait + * + * Description: + * Initialize clocking + * + ****************************************************************************/ + +static void sam3u_pmcwait(uint32_t bit) +{ + uint32_t delay; + for (delay = 0; + (getreg32(SAM3U_PMC_SR) & bit) == 0 && delay < UINT32_MAX; + delay++); +} + +/**************************************************************************** + * Name: sam3u_pmcsetup + * + * Description: + * Initialize clocking + * + ****************************************************************************/ + +static inline void sam3u_pmcsetup(void) +{ + uint32_t regval; + + /* Initialize main oscillator (if it has not already been selected */ + + if ((getreg32(SAM3U_CKGR_MOR) & CKGR_MOR_MOSCSEL) == 0) + { + putreg32(BOARD_CKGR_MOR, SAM3U_CKGR_MOR); + sam3u_pmcwait(PMC_INT_MOSCXTS); + } + + /* Switch to the main oscillator */ + + putreg32((BOARD_CKGR_MOR|CKGR_MOR_MOSCSEL), SAM3U_CKGR_MOR); + sam3u_pmcwait(PMC_INT_MOSCSELS); + + regval = getreg32(SAM3U_PMC_MCKR); + regval &= ~PMC_MCKR_CSS_MASK; + regval |= PMC_MCKR_CSS_MAIN; + putreg32(regval, SAM3U_PMC_MCKR); + sam3u_pmcwait(PMC_INT_MCKRDY); + + /* Settup PLLA */ + + putreg32(BOARD_CKGR_PLLAR, SAM3U_CKGR_PLLAR); + sam3u_pmcwait(PMC_INT_LOCKA); + + /* Setup UTMI for USB */ + +#ifdef CONFIG_USBDEV + regval = getreg32(SAM3U_CKGR_UCKR); + regval |= BOARD_CKGR_UCKR; + putreg32(regval, SAM3U_CKGR_UCKR); + sam3u_pmcwait(PMC_INT_LOCKU); +#endif + + /* Switch to the fast clock */ + + putreg32(BOARD_PMC_MCKR_FAST, SAM3U_PMC_MCKR); + sam3u_pmcwait(PMC_INT_MCKRDY); + + putreg32(BOARD_PMC_MCKR, SAM3U_PMC_MCKR); + sam3u_pmcwait(PMC_INT_MCKRDY); +} + +/**************************************************************************** + * Name: sam3u_enabledefaultmaster and sam3u_disabledefaultmaster + * + * Description: + * Enable/disable default master access + * + ****************************************************************************/ + +static inline void sam3u_enabledefaultmaster(void) +{ + uint32_t regval; + + /* Set default master: SRAM0 -> Cortex-M3 System */ + + regval = getreg32(SAM3U_MATRIX_SCFG0); + regval |= (MATRIX_SCFG0_FIXEDDEFMSTR_ARMS|MATRIX_SCFG_DEFMSTRTYPE_FIXED); + putreg32(regval, SAM3U_MATRIX_SCFG0); + + /* Set default master: SRAM1 -> Cortex-M3 System */ + + regval = getreg32(SAM3U_MATRIX_SCFG1); + regval |= (MATRIX_SCFG1_FIXEDDEFMSTR_ARMS|MATRIX_SCFG_DEFMSTRTYPE_FIXED); + putreg32(regval, SAM3U_MATRIX_SCFG1); + + /* Set default master: Internal flash0 -> Cortex-M3 Instruction/Data */ + + regval = getreg32(SAM3U_MATRIX_SCFG3); + regval |= (MATRIX_SCFG3_FIXEDDEFMSTR_ARMC|MATRIX_SCFG_DEFMSTRTYPE_FIXED); + putreg32(regval, SAM3U_MATRIX_SCFG3); +} + +#if 0 /* Not used */ +static inline void sam3u_disabledefaultmaster(void) +{ + uint32_t regval; + + /* Clear default master: SRAM0 -> Cortex-M3 System */ + + regval = getreg32(SAM3U_MATRIX_SCFG0); + regval &= ~MATRIX_SCFG_DEFMSTRTYPE_MASK; + putreg32(regval, SAM3U_MATRIX_SCFG0); + + /* Clear default master: SRAM1 -> Cortex-M3 System */ + + regval = getreg32(SAM3U_MATRIX_SCFG1); + regval &= ~MATRIX_SCFG_DEFMSTRTYPE_MASK; + putreg32(regval, SAM3U_MATRIX_SCFG1); + + /* Clear default master: Internal flash0 -> Cortex-M3 Instruction/Data */ + + regval = getreg32(SAM3U_MATRIX_SCFG3); + regval &= ~MATRIX_SCFG_DEFMSTRTYPE_MASK; + putreg32(regval, SAM3U_MATRIX_SCFG3); +} +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/************************************************************************************ + * Name: sam3u_clockconfig + * + * Description: + * Called to initialize the SAM3U. This does whatever setup is needed to put the + * SoC in a usable state. This includes the initialization of clocking using the + * settings in board.h. (After power-on reset, the sam3u is initiallyrunning on + * a 4MHz internal RC clock). This function also performs other low-level chip + * initialization of the chip including EFC, master clock, IRQ & watchdog + * configuration. + * + ************************************************************************************/ + +void sam3u_clockconfig(void) +{ + /* Configure embedded flash access */ + + sam3u_efcsetup(); + + /* Configure the watchdog timer */ + + sam3u_wdtsetup(); + + /* Setup the supply controller to use the external slow clock */ + + sam3u_supcsetup(); + + /* Initialize clocking */ + + sam3u_pmcsetup(); + + /* Optimize CPU setting for speed */ + + sam3u_enabledefaultmaster(); +} + diff --git a/arch/arm/src/sam3u/sam3u_internal.h b/arch/arm/src/sam3u/sam3u_internal.h index a0ea45f028..3eace01cea 100755 --- a/arch/arm/src/sam3u/sam3u_internal.h +++ b/arch/arm/src/sam3u/sam3u_internal.h @@ -1,7 +1,7 @@ /************************************************************************************ * arch/arm/src/sam3u/sam3u_internal.h * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without @@ -83,26 +83,33 @@ extern "C" { * Public Function Prototypes ************************************************************************************/ -/************************************************************************************ - * Name: sam3u_lowsetup - * - * Description: - * Called at the very beginning of _start. Performs low level initialization. - * - ************************************************************************************/ - -EXTERN void sam3u_lowsetup(void); - /************************************************************************************ * Name: sam3u_clockconfig * * Description: - * Called to change to new clock based on settings in board.h + * Called to initialize the SAM3U. This does whatever setup is needed to put the + * SoC in a usable state. This includes the initialization of clocking using the + * settings in board.h. (After power-on reset, the sam3u is initiallyrunning on + * a 4MHz internal RC clock). This function also performs other low-level chip + * initialization of the chip including EFC, master clock, IRQ and watchdog + * configuration. * ************************************************************************************/ EXTERN void sam3u_clockconfig(void); +/************************************************************************************ + * Name: sam3u_lowsetup + * + * Description: + * Called at the very beginning of _start. Performs low level initialization + * including setup of the console UART. This UART done early so that the serial + * console is available for debugging very early in the boot sequence. + * + ************************************************************************************/ + +EXTERN void sam3u_lowsetup(void); + #undef EXTERN #if defined(__cplusplus) } diff --git a/arch/arm/src/sam3u/sam3u_lowputc.c b/arch/arm/src/sam3u/sam3u_lowputc.c new file mode 100755 index 0000000000..399950a839 --- /dev/null +++ b/arch/arm/src/sam3u/sam3u_lowputc.c @@ -0,0 +1,208 @@ +/************************************************************************** + * arch/arm/src/sam3u/sam3u_lowputc.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + **************************************************************************/ + +/************************************************************************** + * Included Files + **************************************************************************/ + +#include + +#include + +#include +#include + +#include "up_internal.h" +#include "up_arch.h" + +#include "sam3u_internal.h" +#include "sam3u_pmc.h" + +/************************************************************************** + * Private Definitions + **************************************************************************/ + +/* Configuration **********************************************************/ + +#ifndef CONFIG_USART0_ISUART +# undef CONFIG_SAM3U_USART0 +#endif +#ifndef CONFIG_USART1_ISUART +# undef CONFIG_SAM3U_USART1 +#endif +#ifndef CONFIG_USART2_ISUART +# undef CONFIG_SAM3U_USART2 +#endif +#ifndef CONFIG_USART3_ISUART +# undef CONFIG_SAM3U_USART3 +#endif + +/* Is there a serial console? It could be on the UART, or USARTn */ + +#if defined(CONFIG_UART_SERIAL_CONSOLE) && defined(CONFIG_SAM3U_UART) +# undef CONFIG_USART0_SERIAL_CONSOLE +# undef CONFIG_USART1_SERIAL_CONSOLE +# undef CONFIG_USART2_SERIAL_CONSOLE +# undef CONFIG_USART3_SERIAL_CONSOLE +# define HAVE_CONSOLE 1 +#elif defined(CONFIG_USART0_SERIAL_CONSOLE) && defined(CONFIG_SAM3U_USART0) +# undef CONFIG_USART_SERIAL_CONSOLE +# undef CONFIG_USART1_SERIAL_CONSOLE +# undef CONFIG_USART2_SERIAL_CONSOLE +# undef CONFIG_USART3_SERIAL_CONSOLE +# define HAVE_CONSOLE 1 +#elif defined(CONFIG_USART1_SERIAL_CONSOLE) && defined(CONFIG_SAM3U_USART1) +# undef CONFIG_USART_SERIAL_CONSOLE +# undef CONFIG_USART0_SERIAL_CONSOLE +# undef CONFIG_USART2_SERIAL_CONSOLE +# undef CONFIG_USART3_SERIAL_CONSOLE +# define HAVE_CONSOLE 1 +#elif defined(CONFIG_USART2_SERIAL_CONSOLE) && defined(CONFIG_SAM3U_USART2) +# undef CONFIG_USART_SERIAL_CONSOLE +# undef CONFIG_USART0_SERIAL_CONSOLE +# undef CONFIG_USART1_SERIAL_CONSOLE +# undef CONFIG_USART3_SERIAL_CONSOLE +# define HAVE_CONSOLE 1 +#elif defined(CONFIG_USART3_SERIAL_CONSOLE) && defined(CONFIG_SAM3U_USART3) +# undef CONFIG_USART_SERIAL_CONSOLE +# undef CONFIG_USART0_SERIAL_CONSOLE +# undef CONFIG_USART1_SERIAL_CONSOLE +# undef CONFIG_USART2_SERIAL_CONSOLE +# define HAVE_CONSOLE 1 +#else +# undef CONFIG_USART_SERIAL_CONSOLE +# undef CONFIG_USART0_SERIAL_CONSOLE +# undef CONFIG_USART1_SERIAL_CONSOLE +# undef CONFIG_USART2_SERIAL_CONSOLE +# undef CONFIG_USART3_SERIAL_CONSOLE +# undef HAVE_CONSOLE +#endif + +/* Select USART parameters for the selected console */ + +#if defined(CONFIG_UART_SERIAL_CONSOLE) +# define SAM3U_CONSOLE_BASE SAM3U_UART_BASE +# define SAM3U_CONSOLE_BAUD CONFIG_USART_BAUD +# define SAM3U_CONSOLE_BITS CONFIG_USART_BITS +# define SAM3U_CONSOLE_PARITY CONFIG_USART_PARITY +# define SAM3U_CONSOLE_2STOP CONFIG_USART_2STOP +#elif defined(CONFIG_USART0_SERIAL_CONSOLE) +# define SAM3U_CONSOLE_BASE SAM3U_USART0_BASE +# define SAM3U_CONSOLE_BAUD CONFIG_USART0_BAUD +# define SAM3U_CONSOLE_BITS CONFIG_USART0_BITS +# define SAM3U_CONSOLE_PARITY CONFIG_USART0_PARITY +# define SAM3U_CONSOLE_2STOP CONFIG_USART0_2STOP +#elif defined(CONFIG_USART1_SERIAL_CONSOLE) +# define SAM3U_CONSOLE_BASE SAM3U_USART1_BASE +# define SAM3U_CONSOLE_BAUD CONFIG_USART1_BAUD +# define SAM3U_CONSOLE_BITS CONFIG_USART1_BITS +# define SAM3U_CONSOLE_PARITY CONFIG_USART1_PARITY +# define SAM3U_CONSOLE_2STOP CONFIG_USART1_2STOP +#elif defined(CONFIG_USART2_SERIAL_CONSOLE) +# define SAM3U_CONSOLE_BASE SAM3U_USART2_BASE +# define SAM3U_CONSOLE_BAUD CONFIG_USART2_BAUD +# define SAM3U_CONSOLE_BITS CONFIG_USART2_BITS +# define SAM3U_CONSOLE_PARITY CONFIG_USART2_PARITY +# define SAM3U_CONSOLE_2STOP CONFIG_USART2_2STOP +#elif defined(CONFIG_USART3_SERIAL_CONSOLE) +# define SAM3U_CONSOLE_BASE SAM3U_USART3_BASE +# define SAM3U_CONSOLE_BAUD CONFIG_USART3_BAUD +# define SAM3U_CONSOLE_BITS CONFIG_USART3_BITS +# define SAM3U_CONSOLE_PARITY CONFIG_USART3_PARITY +# define SAM3U_CONSOLE_2STOP CONFIG_USART3_2STOP +#else +# error "No CONFIG_U[S]ARTn_SERIAL_CONSOLE Setting" +#endif + +/************************************************************************** + * Private Types + **************************************************************************/ + +/************************************************************************** + * Private Function Prototypes + **************************************************************************/ + +/************************************************************************** + * Global Variables + **************************************************************************/ + +/************************************************************************** + * Private Variables + **************************************************************************/ + +/************************************************************************** + * Private Functions + **************************************************************************/ + +/************************************************************************** + * Public Functions + **************************************************************************/ + +/************************************************************************** + * Name: up_lowputc + * + * Description: + * Output one byte on the serial console + * + **************************************************************************/ + +void up_lowputc(char ch) +{ +#warning "To be provided" +} + +/************************************************************************** + * Name: sam3u_lowsetup + * + * Description: + * This performs basic initialization of the USART used for the serial + * console. Its purpose is to get the console output availabe as soon + * as possible. + * + **************************************************************************/ + +void sam3u_lowsetup(void) +{ + uint32_t regval; + +#warning "To be provided" + /* Enable clocking for the UART */ + + regval = getreg32(SAM3U_PMC_PCER); + regval |= (1 << SAM3U_PID_UART); + putreg32(regval, SAM3U_PMC_PCER); +} + + diff --git a/arch/arm/src/sam3u/sam3u_matrix.h b/arch/arm/src/sam3u/sam3u_matrix.h index df630f5e0d..e9d41a658a 100755 --- a/arch/arm/src/sam3u/sam3u_matrix.h +++ b/arch/arm/src/sam3u/sam3u_matrix.h @@ -1,7 +1,7 @@ /**************************************************************************************** * arch/arm/src/sam3u/sam3u_matric.h * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without @@ -51,109 +51,125 @@ /* MATRIX register offsets **************************************************************/ -#define SAM3U_MATRIX_MCFG_OFFSET(n) ((n)<<2) -#define SAM3U_MATRIX_MCFG0_OFFSET 0x0000 /* Master Configuration Register 0 */ -#define SAM3U_MATRIX_MCFG1_OFFSET 0x0004 /* Master Configuration Register 1 */ -#define SAM3U_MATRIX_MCFG2_OFFSET 0x0008 /* Master Configuration Register 2 */ -#define SAM3U_MATRIX_MCFG3_OFFSET 0x000c /* Master Configuration Register 3 */ -#define SAM3U_MATRIX_MCFG4_OFFSET 0x0010 /* Master Configuration Register 4 */ - /* 0x0014-0x003c: Reserved */ -#define SAM3U_MATRIX_SCFG_OFFSET(n) (0x0040+((n)<<2)) -#define SAM3U_MATRIX_SCFG0_OFFSET 0x0040 /* Slave Configuration Register 0 */ -#define SAM3U_MATRIX_SCFG1_OFFSET 0x0044 /* Slave Configuration Register 1 */ -#define SAM3U_MATRIX_SCFG2_OFFSET 0x0048 /* Slave Configuration Register 2 */ -#define SAM3U_MATRIX_SCFG3_OFFSET 0x004c /* Slave Configuration Register 3 */ -#define SAM3U_MATRIX_SCFG4_OFFSET 0x0050 /* Slave Configuration Register 4 */ -#define SAM3U_MATRIX_SCFG5_OFFSET 0x0054 /* Slave Configuration Register 5 */ -#define SAM3U_MATRIX_SCFG6_OFFSET 0x0058 /* Slave Configuration Register 6 */ -#define SAM3U_MATRIX_SCFG7_OFFSET 0x005c /* Slave Configuration Register 7 */ -#define SAM3U_MATRIX_SCFG8_OFFSET 0x0060 /* Slave Configuration Register 8 */ -#define SAM3U_MATRIX_SCFG9_OFFSET 0x0064 /* Slave Configuration Register 9 */ - /* 0x0068-0x007c: Reserved */ -#define SAM3U_MATRIX_SCFG_OFFSET(n) (0x0080+((n)<<3)) -#define SAM3U_MATRIX_PRAS0_OFFSET 0x0080 /* Priority Register A for Slave 0 */ - /* 0x0084: Reserved */ -#define SAM3U_MATRIX_PRAS1_OFFSET 0x0088 /* Priority Register A for Slave 1 */ - /* 0x008c: Reserved */ -#define SAM3U_MATRIX_PRAS2_OFFSET 0x0090 /* Priority Register A for Slave 2 */ - /* 0x0094: Reserved */ -#define SAM3U_MATRIX_PRAS3_OFFSET 0x0098 /* Priority Register A for Slave 3 */ - /* 0x009c: Reserved */ -#define SAM3U_MATRIX_PRAS4_OFFSET 0x00a0 /* Priority Register A for Slave 4 */ - /* 0x00a4: Reserved */ -#define SAM3U_MATRIX_PRAS5_OFFSET 0x00a8 /* Priority Register A for Slave 5 */ - /* 0x00ac: Reserved */ -#define SAM3U_MATRIX_PRAS6_OFFSET 0x00b0 /* Priority Register A for Slave 6 */ - /* 0x00b4: Reserved */ -#define SAM3U_MATRIX_PRAS7_OFFSET 0x00b8 /* Priority Register A for Slave 7 */ - /* 0x00bc: Reserved */ -#define SAM3U_MATRIX_PRAS8_OFFSET 0x00c0 /* Priority Register A for Slave 8 */ - /* 0x00c4: Reserved */ -#define SAM3U_MATRIX_PRAS9_OFFSET 0x00c8 /* Priority Register A for Slave 9 */ - /* 0x00cc-0x00fc: Reserved */ -#define SAM3U_MATRIX_MRCR_OFFSET 0x0100 /* Master Remap Control Register */ - /* 0x0104-0x010c: Reserved */ -#define SAM3U_MATRIX_WPMR_OFFSET 0x01e4 /* Write Protect Mode Register */ -#define SAM3U_MATRIX_WPSR_OFFSET 0x01e8 /* Write Protect Status Register */ - /* 0x0110 - 0x01fc: Reserved */ +#define SAM3U_MATRIX_MCFG_OFFSET(n) ((n)<<2) +#define SAM3U_MATRIX_MCFG0_OFFSET 0x0000 /* Master Configuration Register 0 */ +#define SAM3U_MATRIX_MCFG1_OFFSET 0x0004 /* Master Configuration Register 1 */ +#define SAM3U_MATRIX_MCFG2_OFFSET 0x0008 /* Master Configuration Register 2 */ +#define SAM3U_MATRIX_MCFG3_OFFSET 0x000c /* Master Configuration Register 3 */ +#define SAM3U_MATRIX_MCFG4_OFFSET 0x0010 /* Master Configuration Register 4 */ + /* 0x0014-0x003c: Reserved */ +#define SAM3U_MATRIX_SCFG_OFFSET(n) (0x0040+((n)<<2)) +#define SAM3U_MATRIX_SCFG0_OFFSET 0x0040 /* Slave Configuration Register 0 */ +#define SAM3U_MATRIX_SCFG1_OFFSET 0x0044 /* Slave Configuration Register 1 */ +#define SAM3U_MATRIX_SCFG2_OFFSET 0x0048 /* Slave Configuration Register 2 */ +#define SAM3U_MATRIX_SCFG3_OFFSET 0x004c /* Slave Configuration Register 3 */ +#define SAM3U_MATRIX_SCFG4_OFFSET 0x0050 /* Slave Configuration Register 4 */ +#define SAM3U_MATRIX_SCFG5_OFFSET 0x0054 /* Slave Configuration Register 5 */ +#define SAM3U_MATRIX_SCFG6_OFFSET 0x0058 /* Slave Configuration Register 6 */ +#define SAM3U_MATRIX_SCFG7_OFFSET 0x005c /* Slave Configuration Register 7 */ +#define SAM3U_MATRIX_SCFG8_OFFSET 0x0060 /* Slave Configuration Register 8 */ +#define SAM3U_MATRIX_SCFG9_OFFSET 0x0064 /* Slave Configuration Register 9 */ + /* 0x0068-0x007c: Reserved */ +#define SAM3U_MATRIX_PRAS_OFFSET(n) (0x0080+((n)<<3)) +#define SAM3U_MATRIX_PRAS0_OFFSET 0x0080 /* Priority Register A for Slave 0 */ + /* 0x0084: Reserved */ +#define SAM3U_MATRIX_PRAS1_OFFSET 0x0088 /* Priority Register A for Slave 1 */ + /* 0x008c: Reserved */ +#define SAM3U_MATRIX_PRAS2_OFFSET 0x0090 /* Priority Register A for Slave 2 */ + /* 0x0094: Reserved */ +#define SAM3U_MATRIX_PRAS3_OFFSET 0x0098 /* Priority Register A for Slave 3 */ + /* 0x009c: Reserved */ +#define SAM3U_MATRIX_PRAS4_OFFSET 0x00a0 /* Priority Register A for Slave 4 */ + /* 0x00a4: Reserved */ +#define SAM3U_MATRIX_PRAS5_OFFSET 0x00a8 /* Priority Register A for Slave 5 */ + /* 0x00ac: Reserved */ +#define SAM3U_MATRIX_PRAS6_OFFSET 0x00b0 /* Priority Register A for Slave 6 */ + /* 0x00b4: Reserved */ +#define SAM3U_MATRIX_PRAS7_OFFSET 0x00b8 /* Priority Register A for Slave 7 */ + /* 0x00bc: Reserved */ +#define SAM3U_MATRIX_PRAS8_OFFSET 0x00c0 /* Priority Register A for Slave 8 */ + /* 0x00c4: Reserved */ +#define SAM3U_MATRIX_PRAS9_OFFSET 0x00c8 /* Priority Register A for Slave 9 */ + /* 0x00cc-0x00fc: Reserved */ +#define SAM3U_MATRIX_MRCR_OFFSET 0x0100 /* Master Remap Control Register */ + /* 0x0104-0x010c: Reserved */ +#define SAM3U_MATRIX_WPMR_OFFSET 0x01e4 /* Write Protect Mode Register */ +#define SAM3U_MATRIX_WPSR_OFFSET 0x01e8 /* Write Protect Status Register */ + /* 0x0110 - 0x01fc: Reserved */ /* MATRIX register adresses *************************************************************/ -#define SAM3U_MATRIX_MCFG(n)) (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG_OFFSET(n)) -#define SAM3U_MATRIX_MCFG0 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG0_OFFSET) -#define SAM3U_MATRIX_MCFG1 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG1_OFFSET) -#define SAM3U_MATRIX_MCFG2 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG2_OFFSET) -#define SAM3U_MATRIX_MCFG3 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG3_OFFSET) -#define SAM3U_MATRIX_MCFG4 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG4_OFFSET) +#define SAM3U_MATRIX_MCFG(n)) (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG_OFFSET(n)) +#define SAM3U_MATRIX_MCFG0 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG0_OFFSET) +#define SAM3U_MATRIX_MCFG1 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG1_OFFSET) +#define SAM3U_MATRIX_MCFG2 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG2_OFFSET) +#define SAM3U_MATRIX_MCFG3 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG3_OFFSET) +#define SAM3U_MATRIX_MCFG4 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MCFG4_OFFSET) -#define SAM3U_MATRIX_SCFG(n) (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG_OFFSET(n)) -#define SAM3U_MATRIX_SCFG0 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG0_OFFSET) -#define SAM3U_MATRIX_SCFG1 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG1_OFFSET) -#define SAM3U_MATRIX_SCFG2 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG2_OFFSET) -#define SAM3U_MATRIX_SCFG3 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG3_OFFSET) -#define SAM3U_MATRIX_SCFG4 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG4_OFFSET) -#define SAM3U_MATRIX_SCFG5 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG5_OFFSET) -#define SAM3U_MATRIX_SCFG6 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG6_OFFSET) -#define SAM3U_MATRIX_SCFG7 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG7_OFFSET) -#define SAM3U_MATRIX_SCFG8 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG8_OFFSET) -#define SAM3U_MATRIX_SCFG9 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG9_OFFSET) +#define SAM3U_MATRIX_SCFG(n) (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG_OFFSET(n)) +#define SAM3U_MATRIX_SCFG0 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG0_OFFSET) +#define SAM3U_MATRIX_SCFG1 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG1_OFFSET) +#define SAM3U_MATRIX_SCFG2 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG2_OFFSET) +#define SAM3U_MATRIX_SCFG3 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG3_OFFSET) +#define SAM3U_MATRIX_SCFG4 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG4_OFFSET) +#define SAM3U_MATRIX_SCFG5 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG5_OFFSET) +#define SAM3U_MATRIX_SCFG6 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG6_OFFSET) +#define SAM3U_MATRIX_SCFG7 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG7_OFFSET) +#define SAM3U_MATRIX_SCFG8 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG8_OFFSET) +#define SAM3U_MATRIX_SCFG9 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG9_OFFSET) -#define SAM3U_MATRIX_SCFG(n) (SAM3U_MATRIX_BASE+SAM3U_MATRIX_SCFG_OFFSET(n)) -#define SAM3U_MATRIX_PRAS0 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS0_OFFSET) -#define SAM3U_MATRIX_PRAS1 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS1_OFFSET) -#define SAM3U_MATRIX_PRAS2 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS2_OFFSET) -#define SAM3U_MATRIX_PRAS3 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS3_OFFSET) -#define SAM3U_MATRIX_PRAS4 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS4_OFFSET) -#define SAM3U_MATRIX_PRAS5 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS5_OFFSET) -#define SAM3U_MATRIX_PRAS6 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS6_OFFSET) -#define SAM3U_MATRIX_PRAS7 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS7_OFFSET) -#define SAM3U_MATRIX_PRAS8 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS8_OFFSET) -#define SAM3U_MATRIX_PRAS9 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS9_OFFSET) +#define SAM3U_MATRIX_PRAS(n) (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS_OFFSET(n)) +#define SAM3U_MATRIX_PRAS0 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS0_OFFSET) +#define SAM3U_MATRIX_PRAS1 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS1_OFFSET) +#define SAM3U_MATRIX_PRAS2 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS2_OFFSET) +#define SAM3U_MATRIX_PRAS3 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS3_OFFSET) +#define SAM3U_MATRIX_PRAS4 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS4_OFFSET) +#define SAM3U_MATRIX_PRAS5 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS5_OFFSET) +#define SAM3U_MATRIX_PRAS6 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS6_OFFSET) +#define SAM3U_MATRIX_PRAS7 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS7_OFFSET) +#define SAM3U_MATRIX_PRAS8 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS8_OFFSET) +#define SAM3U_MATRIX_PRAS9 (SAM3U_MATRIX_BASE+SAM3U_MATRIX_PRAS9_OFFSET) -#define SAM3U_MATRIX_MRCR (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MRCR_OFFSET) -#define SAM3U_MATRIX_WPMR (SAM3U_MATRIX_BASE+SAM3U_MATRIX_WPMR_OFFSET) -#define SAM3U_MATRIX_WPSR (SAM3U_MATRIX_BASE+SAM3U_MATRIX_WPSR_OFFSET) +#define SAM3U_MATRIX_MRCR (SAM3U_MATRIX_BASE+SAM3U_MATRIX_MRCR_OFFSET) +#define SAM3U_MATRIX_WPMR (SAM3U_MATRIX_BASE+SAM3U_MATRIX_WPMR_OFFSET) +#define SAM3U_MATRIX_WPSR (SAM3U_MATRIX_BASE+SAM3U_MATRIX_WPSR_OFFSET) /* MATRIX register bit definitions ******************************************************/ -#define MATRIX_MCFG_ULBT_SHIFT (0) /* Bits 0-2: Undefined Length Burst Type */ -#define MATRIX_MCFG_ULBT_MASK (7 << MATRIX_MCFG_ULBT_SHIFT) -# define MATRIX_MCFG_ULBT_INF (0 << MATRIX_MCFG_ULBT_SHIFT) /* Infinite Length Burst -# define MATRIX_MCFG_ULBT_SINGLE (1 << MATRIX_MCFG_ULBT_SHIFT) /* Single Access -# define MATRIX_MCFG_ULBT_4BEAT (2 << MATRIX_MCFG_ULBT_SHIFT) /* Four Beat Burst -# define MATRIX_MCFG_ULBT_8BEAT (3 << MATRIX_MCFG_ULBT_SHIFT) /* Eight Beat Burst -# define MATRIX_MCFG_ULBT_16BEAT (4 << MATRIX_MCFG_ULBT_SHIFT) /* Sixteen Beat Burst +#define MATRIX_MCFG_ULBT_SHIFT (0) /* Bits 0-2: Undefined Length Burst Type */ +#define MATRIX_MCFG_ULBT_MASK (7 << MATRIX_MCFG_ULBT_SHIFT) +# define MATRIX_MCFG_ULBT_INF (0 << MATRIX_MCFG_ULBT_SHIFT) /* Infinite Length Burst */ +# define MATRIX_MCFG_ULBT_SINGLE (1 << MATRIX_MCFG_ULBT_SHIFT) /* Single Access */ +# define MATRIX_MCFG_ULBT_4BEAT (2 << MATRIX_MCFG_ULBT_SHIFT) /* Four Beat Burst */ +# define MATRIX_MCFG_ULBT_8BEAT (3 << MATRIX_MCFG_ULBT_SHIFT) /* Eight Beat Burst */ +# define MATRIX_MCFG_ULBT_16BEAT (4 << MATRIX_MCFG_ULBT_SHIFT) /* Sixteen Beat Burst */ + +#define MATRIX_SCFG_SLOTCYCLE_SHIFT (0) /* Bits 0-7: Maximum Number of Allowed Cycles for a Burst */ +#define MATRIX_SCFG_SLOTCYCLE_MASK (0xff << MATRIX_SCFG_SLOTCYCLE_SHIFT) +#define MATRIX_SCFG_DEFMSTRTYPE_SHIFT (16) /* Bits 16-17: Default Master Type */ +#define MATRIX_SCFG_DEFMSTRTYPE_MASK (3 << MATRIX_SCFG_DEFMSTRTYPE_SHIFT) +# define MATRIX_SCFG_DEFMSTRTYPE_NONE (0 << MATRIX_SCFG_DEFMSTRTYPE_SHIFT) +# define MATRIX_SCFG_DEFMSTRTYPE_LAST (1 << MATRIX_SCFG_DEFMSTRTYPE_SHIFT) +# define MATRIX_SCFG_DEFMSTRTYPE_FIXED (2 << MATRIX_SCFG_DEFMSTRTYPE_SHIFT) +#define MATRIX_SCFG_FIXEDDEFMSTR_SHIFT (18) /* Bits 18-20: Fixed Default Master */ +#define MATRIX_SCFG_FIXEDDEFMSTR_MASK (7 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG0_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG1_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG2_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG3_FIXEDDEFMSTR_ARMC (0 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG4_FIXEDDEFMSTR_ARMC (0 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG5_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG6_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG7_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG8_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG8_FIXEDDEFMSTR_HDMA (4 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG9_FIXEDDEFMSTR_ARMS (1 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) +# define MATRIX_SCFG9_FIXEDDEFMSTR_HDMA (4 << MATRIX_SCFG_FIXEDDEFMSTR_SHIFT) -#define MATRIX_SCFG_SLOT_CYCLE_SHIFT (0) /* Bits 0-7: Maximum Number of Allowed Cycles for a Burst */ -#define MATRIX_SCFG_SLOT_CYCLE_MASK (0xff << MATRIX_SCFG_SLOT_CYCLE_SHIFT) -#define MATRIX_SCFG_DEFMSTR_TYPE_SHIFT (16) /* Bits 16-17: Default Master Type */ -#define MATRIX_SCFG_DEFMSTR_TYPE_MASK (3 << MATRIX_SCFG_DEFMSTR_TYPE_SHIFT) -#define MATRIX_SCFG_FIXED_DEFMSTR_SHIFT (18) /* Bits 18-20: Fixed Default Master */ -#define MATRIX_SCFG_FIXED_DEFMSTR_MASK (7 << MATRIX_SCFG_FIXED_DEFMSTR_SHIFT) #define MATRIX_SCFG_ARBT_SHIFT (24) /* Bits 24-25: Arbitration Type */ #define MATRIX_SCFG_ARBT_MASK (3 << MATRIX_SCFG_ARBT_SHIFT) -# define MATRIX_SCFG_ARBT_RR (0 << MATRIX_SCFG_ARBT_SHIFT) /* Round-Robin Arbitration -# define MATRIX_SCFG_ARBT_FIXED (1 << MATRIX_SCFG_ARBT_SHIFT) /* Fixed Priority Arbitration +# define MATRIX_SCFG_ARBT_RR (0 << MATRIX_SCFG_ARBT_SHIFT) /* Round-Robin Arbitration */ +# define MATRIX_SCFG_ARBT_FIXED (1 << MATRIX_SCFG_ARBT_SHIFT) /* Fixed Priority Arbitration */ #define MATRIX_PRAS_MPR_SHIFT(x) ((n)<<2) #define MATRIX_PRAS_MPR_MASK(x) (3 << MATRIX_PRAS_MPR_SHIFT(x)) diff --git a/arch/arm/src/sam3u/sam3u_pmc.h b/arch/arm/src/sam3u/sam3u_pmc.h index ba808c2fc6..3fde5b642b 100755 --- a/arch/arm/src/sam3u/sam3u_pmc.h +++ b/arch/arm/src/sam3u/sam3u_pmc.h @@ -196,8 +196,9 @@ #define CKGR_PLLAR_STMODE_MASK (3 << CKGR_PLLAR_STMODE_SHIFT) # define CKGR_PLLAR_STMODE_FAST (0 << CKGR_PLLAR_STMODE_SHIFT) /* Fast Startup */ # define CKGR_PLLAR_STMODE_NORMAL (2 << CKGR_PLLAR_STMODE_SHIFT) /* Normal Startup */ -#define CKGR_PLLAR_MULA_SHIFT (24) /* Bits 24-26: PLLA Multiplier */ -#define CKGR_PLLAR_MULA_MASK (7 << CKGR_PLLAR_MULA_SHIFT) +#define CKGR_PLLAR_MULA_SHIFT (16) /* Bits 16-26: PLLA Multiplier */ +#define CKGR_PLLAR_MULA_MASK (0x7ff << CKGR_PLLAR_MULA_SHIFT) +#define CKGR_PLLAR_ONE (1 << 29) /* Bit 29: Always one */ /* PMC Master Clock Register */ @@ -244,7 +245,7 @@ #define PMC_INT_MOSCXTS (1 << 0) /* Bit 0: Main Crystal Oscillator Status Interrupt */ #define PMC_INT_LOCKA (1 << 1) /* Bit 1: PLL A Lock Interrupt */ -#define PMC_INT_MCKRDY (1 << 2) /* Bit 3: Master Clock Ready Interrupt */ +#define PMC_INT_MCKRDY (1 << 3) /* Bit 3: Master Clock Ready Interrupt */ #define PMC_INT_LOCKU (1 << 6) /* Bit 6: UTMI PLL Lock Interrupt */ #define PMC_SR_OSCSELS (1 << 7) /* Bit 7: Slow Clock Oscillator Selection (SR only) */ #define PMC_INT_PCKRDY(n) (1<<((n)+8) diff --git a/arch/arm/src/sam3u/sam3u_start.c b/arch/arm/src/sam3u/sam3u_start.c index 34b418cc3b..71027be669 100755 --- a/arch/arm/src/sam3u/sam3u_start.c +++ b/arch/arm/src/sam3u/sam3u_start.c @@ -2,7 +2,7 @@ * arch/arm/src/sam3u/sam3u_start.c * arch/arm/src/chip/sam3u_start.c * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without diff --git a/arch/arm/src/sam3u/sam3u_supc.h b/arch/arm/src/sam3u/sam3u_supc.h index 60017324b8..8cde5389e7 100755 --- a/arch/arm/src/sam3u/sam3u_supc.h +++ b/arch/arm/src/sam3u/sam3u_supc.h @@ -94,8 +94,8 @@ # define SUPC_SMMR_SMTH_3p4V (15 << SUPC_SMMR_SMTH_SHIFT) /* 3.4V */ #define SUPC_SMMR_SMSMPL_SHIFT (8) /* Bits 8-10: Supply Monitor Sampling Period */ #define SUPC_SMMR_SMSMPL_MASK (7 << SUPC_SMMR_SMSMPL_SHIFT) -# define SUPC_SMMR_SMSMPL_SMD (0 << SUPC_SMMR_SMSMPL_SHIFT) /* Supply Monitor disabled */ */ -# define SUPC_SMMR_SMSMPL_CSM (1 << SUPC_SMMR_SMSMPL_SHIFT) /* Continuous Supply Monitor +# define SUPC_SMMR_SMSMPL_SMD (0 << SUPC_SMMR_SMSMPL_SHIFT) /* Supply Monitor disabled */ +# define SUPC_SMMR_SMSMPL_CSM (1 << SUPC_SMMR_SMSMPL_SHIFT) /* Continuous Supply Monitor */ # define SUPC_SMMR_SMSMPL_32SLCK (2 << SUPC_SMMR_SMSMPL_SHIFT) /* Eevery 32 SLCK periods */ # define SUPC_SMMR_SMSMPL_256SLCK (3 << SUPC_SMMR_SMSMPL_SHIFT) /* Every 256 SLCK periods */ # define SUPC_SMMR_SMSMPL_2048SLCK (4 << SUPC_SMMR_SMSMPL_SHIFT) /* Every 2,048 SLCK periods */ @@ -123,12 +123,12 @@ #define SUPC_WUMR_FWUPDBC_32768SCLK (5 << SUPC_WUMR_FWUPDBC_SHIFT) /* FWUP at least 32768 SLCK periods */ #define SUPC_WUMR_WKUPDBC_SHIFT (12) /* Bits 12-14: Wake Up Inputs Debouncer */ #define SUPC_WUMR_WKUPDBC_MASK (7 << SUPC_WUMR_WKUPDBC_SHIFT) -# define SUPC_WUMR_WKUPDBC_ 1SCLK (0 << SUPC_WUMR_WKUPDBC_SHIFT) /* Immediate, no debouncing */ -# define SUPC_WUMR_WKUPDBC_ 3SCLK (1 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 3 SLCK periods */ -# define SUPC_WUMR_WKUPDBC_ 32SCLK (2 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 32 SLCK periods */ -# define SUPC_WUMR_WKUPDBC_ 512SCLK (3 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 512 SLCK periods */ -# define SUPC_WUMR_WKUPDBC_ 4096SCLK (4 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 4096 SLCK periods */ -# define SUPC_WUMR_WKUPDBC_ 32768SCLK (5 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 32768 SLCK periods */ +# define SUPC_WUMR_WKUPDBC_1SCLK (0 << SUPC_WUMR_WKUPDBC_SHIFT) /* Immediate, no debouncing */ +# define SUPC_WUMR_WKUPDBC_3SCLK (1 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 3 SLCK periods */ +# define SUPC_WUMR_WKUPDBC_32SCLK (2 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 32 SLCK periods */ +# define SUPC_WUMR_WKUPDBC_512SCLK (3 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 512 SLCK periods */ +# define SUPC_WUMR_WKUPDBC_4096SCLK (4 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 4096 SLCK periods */ +# define SUPC_WUMR_WKUPDBC_32768SCLK (5 << SUPC_WUMR_WKUPDBC_SHIFT) /* Input active at least 32768 SLCK periods */ #define SUPC_WUIR_WKUPEN_SHIFT (0) /* Bits 0-15: Wake Up Input Enable 0 to 15 */ #define SUPC_WUIR_WKUPEN_MASK (0xffff << SUPC_WUIR_WKUPEN_SHIFT) diff --git a/arch/arm/src/sam3u/sam3u_timerisr.c b/arch/arm/src/sam3u/sam3u_timerisr.c new file mode 100755 index 0000000000..225af25f6a --- /dev/null +++ b/arch/arm/src/sam3u/sam3u_timerisr.c @@ -0,0 +1,162 @@ +/**************************************************************************** + * arch/arm/src/sam3u/sam3u_timerisr.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include +#include + +#include "nvic.h" +#include "clock_internal.h" +#include "up_internal.h" +#include "up_arch.h" + +#include "chip.h" +#include "sam3u_internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* The desired timer interrupt frequency is provided by the definition + * CLK_TCK (see include/time.h). CLK_TCK defines the desired number of + * system clock ticks per second. That value is a user configurable setting + * that defaults to 100 (100 ticks per second = 10 MS interval). + * + * The SAM3U feeds the Cortex System Timer (SysTick) with the MCK clock or + * the MCK clock divided by 8, configurable with the CLKSOURCE bit in the + * SysTick Control and Status register. + */ + +#undef CONFIG_SAM3U_SYSTICK_HCLKd8 /* Power up default is MCK, not MCK/8 */ + +#if CONFIG_SAM3U_SYSTICK_HCLKd8 +# define SYSTICK_RELOAD ((SAM3U_MCK_FREQUENCY / 8 / CLK_TCK) - 1) +#else +# define SYSTICK_RELOAD ((SAM3U_MCK_FREQUENCY / CLK_TCK) - 1) +#endif + +/* The size of the reload field is 24 bits. Verify that the reload value + * will fit in the reload register. + */ + +#if SYSTICK_RELOAD > 0x00ffffff +# error SYSTICK_RELOAD exceeds the range of the RELOAD register +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: up_timerisr + * + * Description: + * The timer ISR will perform a variety of services for various portions + * of the systems. + * + ****************************************************************************/ + +int up_timerisr(int irq, uint32_t *regs) +{ + /* Process timer interrupt */ + + sched_process_timer(); + return 0; +} + +/**************************************************************************** + * Function: up_timerinit + * + * Description: + * This function is called during start-up to initialize + * the timer interrupt. + * + ****************************************************************************/ + +void up_timerinit(void) +{ + uint32_t regval; + + /* Set the SysTick interrupt to the default priority */ + + regval = getreg32(NVIC_SYSH12_15_PRIORITY); + regval &= ~NVIC_SYSH_PRIORITY_PR15_MASK; + regval |= (NVIC_SYSH_PRIORITY_DEFAULT << NVIC_SYSH_PRIORITY_PR15_SHIFT); + putreg32(regval, NVIC_SYSH12_15_PRIORITY); + + /* Make sure that the SYSTICK clock source is set correctly */ + +#if 0 /* Does not work. Comes up with HCLK source and I can't change it */ + regval = getreg32(NVIC_SYSTICK_CTRL); +#if CONFIG_SAM3U_SYSTICK_HCLKd8 + regval &= ~NVIC_SYSTICK_CTRL_CLKSOURCE; +#else + regval |= NVIC_SYSTICK_CTRL_CLKSOURCE; +#endif + putreg32(regval, NVIC_SYSTICK_CTRL); +#endif + + /* Configure SysTick to interrupt at the requested rate */ + + putreg32(SYSTICK_RELOAD, NVIC_SYSTICK_RELOAD); + + /* Attach the timer interrupt vector */ + + (void)irq_attach(SAM3U_IRQ_SYSTICK, (xcpt_t)up_timerisr); + + /* Enable SysTick interrupts */ + + putreg32((NVIC_SYSTICK_CTRL_CLKSOURCE|NVIC_SYSTICK_CTRL_TICKINT|NVIC_SYSTICK_CTRL_ENABLE), NVIC_SYSTICK_CTRL); + + /* And enable the timer interrupt */ + + up_enable_irq(SAM3U_IRQ_SYSTICK); +}