/************************************************************************************
* configs/sam4s-xplained/include/board.h
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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.
*
************************************************************************************/
#ifndef __CONFIGS_SAM4L_XPLAINED_INCLUDE_BOARD_H
#define __CONFIGS_SAM4L_XPLAINED_INCLUDE_BOARD_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
# ifdef CONFIG_SAM34_GPIO_IRQ
# include <arch/irq.h>
# endif
#endif
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
# ifdef CONFIG_SAM34_GPIO_IRQ
# include <arch/irq.h>
# endif
#endif
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Clocking *************************************************************************/
/* After power-on reset, the sam3u device is running on a 4MHz internal RC. These
* definitions will configure clocking with MCK = 48MHz, PLLA = 96, and CPU=120MHz.
*/
/* Main oscillator register settings */
#define BOARD_CKGR_MOR_MOSCXTST (63 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
/* PLLA configuration:
*
* Source: 12MHz crystall at 12MHz
* PLLdiv: 10
* PLLmul: 1 (bypassed)
* Fpll: (12MHz * 10) / 1 = 120MHz
*/
#define BOARD_MAINOSC_FREQUENCY (12000000)
#define BOARD_CKGR_PLLAR_MUL (9 << PMC_CKGR_PLLAR_MUL_SHIFT)
#define BOARD_CKGR_PLLAR_DIV PMC_CKGR_PLLAR_DIV_BYPASS
#define BOARD_CKGR_PLLAR_COUNT (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
#define BOARD_PLLA_FREQUENCY (10*BOARD_MAINOSC_FREQUENCY)
/* PMC master clock register settings */
#define BOARD_PMC_MCKR_CSS PMC_MCKR_CSS_PLLA
#define BOARD_PMC_MCKR_PRES PMC_MCKR_PRES_DIV1
#define BOARD_MCK_FREQUENCY (BOARD_PLLA_FREQUENCY/1)
#define BOARD_CPU_FREQUENCY (BOARD_PLLA_FREQUENCY/1)
/* USB UTMI PLL start-up time */
#define BOARD_CKGR_UCKR_UPLLCOUNT (3 << PMC_CKGR_UCKR_UPLLCOUNT_SHIFT)
/* HSMCI clocking
*
* Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
* divided by (2*(CLKDIV+1)).
*
* MCI_SPEED = MCK / (2*(CLKDIV+1))
* CLKDIV = MCI / MCI_SPEED / 2 - 1
*/
/* MCK = 48MHz, CLKDIV = 59, MCI_SPEED = 48MHz / 2 * (59+1) = 400 KHz */
#define HSMCI_INIT_CLKDIV (59 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 48MHz, CLKDIV = 1, MCI_SPEED = 48MHz / 2 * (1+1) = 12 MHz */
#define HSMCI_MMCXFR_CLKDIV (1 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 48MHz, CLKDIV = 0, MCI_SPEED = 48MHz / 2 * (0+1) = 24 MHz */
#define HSMCI_SDXFR_CLKDIV (0 << HSMCI_MR_CLKDIV_SHIFT)
#define HSMCI_SDWIDEXFR_CLKDIV HSMCI_SDXFR_CLKDIV
/* FLASH wait states:
*
* DC Characteristics
*
* Parameter Min Typ Max
* ---------------------- ----- ----- ----
* Vddcore DC Supply Core 1.08V 1.2V 1.32V
* Vvddio DC Supply I/Os 1.62V 3.3V 3.6V
*
* Wait Maximum
* Vddcore Vvddio States Frequency (MHz)
* ------- ---------- ------ ---------------
* 1.08V 1.62-3.6V 0 16
* " " " "-" " 1 33
* " " " "-" " 2 50
* " " " "-" " 3 67
* " " " "-" " 4 84
* " " " "-" " 5 100
* 1.08V 2.7-3.6V 0 20
* " " " "-" " 1 40
* " " " "-" " 2 60
* " " " "-" " 3 80
* " " " "-" " 4 100
* 1.2V 1.62-3.6V 0 17
* " " " "-" " 1 34
* " " " "-" " 2 52
* " " " "-" " 3 69
* " " " "-" " 4 87
* " " " "-" " 5 104
* " " " "-" " 6 121
* 1.2V 2.7-3.6V 0 21
* " " " "-" " 1 42
* " " " "-" " 2 63
* " " " "-" " 3 84
* " " " "-" " 4 105
* " " " "-" " 5 123 << SELECTION
*/
#define BOARD_FWS 5
/* LED definitions ******************************************************************/
/* There are four LEDs on board the SAM4S Xplained board, two of these can be
* controlled by software in the SAM4S:
*
* LED GPIO
* ---------------- -----
* D9 Yellow LED PC10
* D10 Yellow LED PC17
*
* Both can be illuminated by driving the GPIO output to ground (low).
*/
/* LED index values for use with board_userled() */
#define BOARD_D9 0
#define BOARD_D10 1
#define BOARD_NLEDS 2
/* LED bits for use with board_userled_all() */
#define BOARD_D9_BIT (1 << BOARD_D9)
#define BOARD_D10_BIT (1 << BOARD_D10)
/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
* defined. In that case, the usage by the board port is defined in
* include/board.h and src/up_leds.c. The LEDs are used to encode OS-related
* events as follows:
*
* SYMBOL Val Meaning LED state
* D9 D10
* ----------------------- --- ----------------------- -------- -------- */
#define LED_STARTED 0 /* NuttX has been started OFF OFF */
#define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF OFF */
#define LED_IRQSENABLED 0 /* Interrupts enabled OFF OFF */
#define LED_STACKCREATED 0 /* Idle stack created ON OFF */
#define LED_INIRQ 0 /* In an interrupt No change */
#define LED_SIGNAL 0 /* In a signal handler No change */
#define LED_ASSERTION 0 /* An assertion failed No change */
#define LED_PANIC 0 /* The system has crashed OFF Blinking */
#define LED_IDLE 0 /* MCU is is sleep mode Not used */
/* Thus if D9 is statically on, NuttX has successfully booted and is,
* apparently, running normmally. If D10 is flashing at approximately
* 2Hz, then a fatal error has been detected and the system has halted.
*/
/* Button definitions ***************************************************************/
/* Mechanical buttons:
*
* The SAM4S Xplained has two mechanical buttons. One button is the RESET button
* connected to the SAM4S reset line and the other is a generic user configurable
* button labeled BP2. When a button is pressed it will drive the I/O line to GND.
*
* PA5 BP2
*/
#define BUTTON_BP2 0
#define NUM_BUTTONS 1
#define BUTTON_BP2_BIT (1 << BUTTON_BP2)
/************************************************************************************
* Public Data
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
* Name: sam_boardinitialize
*
* Description:
* All SAM3U architectures must provide the following entry point. This entry point
* is called early in the intitialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
void sam_boardinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_SAM4L_XPLAINED_INCLUDE_BOARD_H */