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nuttx/boards/arm/sam34/sam4s-xplained/include/board.h
Alin Jerpelea 40cd67eee6 boards: arm: Author Gregory Nutt: update licenses to Apache 
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-18 22:58:27 -07:00

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/****************************************************************************
* boards/arm/sam34/sam4s-xplained/include/board.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_ARM_SAM34_SAM4S_XPLAINED_INCLUDE_BOARD_H
#define __BOARDS_ARM_SAM34_SAM4S_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
****************************************************************************/
/* 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)
#endif /* __BOARDS_ARM_SAM34_SAM4S_XPLAINED_INCLUDE_BOARD_H */
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