/************************************************************************************ * configs/sam4s-xplained-pro/include/board.h * * Copyright (C) 2014 Gregory Nutt. All rights reserved. * Authors: Gregory Nutt * Bob Doiron * * 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_SAM4S_XPLAINED_PRO_INCLUDE_BOARD_H #define __CONFIGS_SAM4S_XPLAINED_PRO_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #include #ifndef __ASSEMBLY__ # include # ifdef CONFIG_GPIO_IRQ # include # endif #endif /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* After power-on reset, the sam4s device is running on a 4MHz internal RC. These * definitions will configure clocking with MCK = 120MHz, PLLA = 240, and CPU=120MHz. */ /* Main oscillator register settings */ #define BOARD_CKGR_MOR_MOSCXTST (63 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */ #define BOARD_32KOSC_FREQUENCY (32768) #define BOARD_SLCK_FREQUENCY (BOARD_32KOSC_FREQUENCY) #define BOARD_MAINOSC_FREQUENCY (12000000) #ifdef CONFIG_SAM34_UDP /* PLLA configuration: * * Source: 12MHz crystall at 12MHz * PLLmul: 10 * PLLdiv: 1 (bypassed) * Fpll: (12MHz * 20) / 1 = 240MHz */ # define BOARD_CKGR_PLLAR_MUL (19 << 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 (20*BOARD_MAINOSC_FREQUENCY) /* PLLA = 240Mhz */ /* PMC master clock register settings */ # define BOARD_PMC_MCKR_CSS PMC_MCKR_CSS_PLLA # define BOARD_PMC_MCKR_PRES PMC_MCKR_PRES_DIV2 # define BOARD_MCK_FREQUENCY (BOARD_PLLA_FREQUENCY/2) /* MCK = 120Mhz */ # define BOARD_CPU_FREQUENCY (BOARD_PLLA_FREQUENCY/2) /* CPU = 120Mhz */ /* USB UTMI PLL start-up time */ # define BOARD_CKGR_UCKR_UPLLCOUNT (3 << PMC_CKGR_UCKR_UPLLCOUNT_SHIFT) #else /* PLLA configuration: * * Source: 12MHz crystall at 12MHz * PLLmul: 10 * PLLdiv: 1 (bypassed) * Fpll: (12MHz * 10) / 1 = 120MHz */ # 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) /* PLLA = 120Mhz */ /* 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) /* MCK = 120Mhz */ # define BOARD_CPU_FREQUENCY (BOARD_PLLA_FREQUENCY) /* CPU = 120Mhz */ #endif /* 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 = 120MHz, CLKDIV = 149, MCI_SPEED = 120MHz / 2 * (149+1) = 400 KHz */ #define HSMCI_INIT_CLKDIV (149 << HSMCI_MR_CLKDIV_SHIFT) /* MCK = 120MHz, CLKDIV = 3, MCI_SPEED = 120MHz / 2 * (3+1) = 15 MHz */ #define HSMCI_MMCXFR_CLKDIV (3 << HSMCI_MR_CLKDIV_SHIFT) /* MCK = 120MHz, CLKDIV = 0, MCI_SPEED = 120MHz / 2 * (2+1) = 20 MHz */ #define HSMCI_SDXFR_CLKDIV (2 << HSMCI_MR_CLKDIV_SHIFT) #define HSMCI_SDWIDEXFR_CLKDIV HSMCI_SDXFR_CLKDIV #ifdef CONFIG_SAM34_UDP /* The PLL clock (USB_48M or UDPCK) is driven from the output of the PLL, * PLLACK. The PLL clock must be 48MHz. PLLACK can be divided down via the * PMC USB register to provide the PLL clock. So in order to use the USB * feature, the PLL output must be a multiple of 48MHz. * * PLLACK = 240MHz, USBDIV=4, USB_48M = 240 MHz / (4 + 1) = 48MHz * PLLACK = 192MHz, USBDIV=5, USB_48M = 192 MHz / (3 + 1) = 48MHz */ # define BOARD_PMC_USBS (0) # define BOARD_PMC_USBDIV (4 << PMC_USB_USBDIV_SHIFT) #endif /* 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 two LEDs on board the SAM4S Xplained Pro board, One of these can be * controlled by software in the SAM4S: * * LED GPIO * ---------------- ----- * D301 Yellow LED PC23 * * Both can be illuminated by driving the GPIO output to ground (low). */ /* LED index values for use with sam_setled() */ #define BOARD_D301 0 #define BOARD_NLEDS 1 /* LED bits for use with sam_setleds() */ #define BOARD_D301_BIT (1 << BOARD_D301) /* 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 * D301 * ----------------------- --- ----------------------- -------------- */ #define LED_STARTED 0 /* NuttX has been started OFF */ #define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */ #define LED_IRQSENABLED 0 /* Interrupts enabled OFF */ #define LED_STACKCREATED 1 /* Idle stack created ON */ #define LED_INIRQ 2 /* In an interrupt OFF */ #define LED_SIGNAL 2 /* In a signal handler OFF */ #define LED_ASSERTION 4 /* An assertion failed No change */ #define LED_PANIC 3 /* The system has crashed Flash @ 250ms */ #define LED_IDLE 4 /* MCU is is sleep mode Not used */ #define LED_D301_OFF true /* GPIO high for OFF */ #define LED_D301_ON false /* GPIO low for ON */ /* Thus if D301 is statically on, NuttX has successfully booted and is, * apparently, running normally. */ /* Button definitions ***************************************************************/ /* Mechanical buttons: * * The SAM4S Xplained Pro 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 SW0. When a button is pressed it will drive the I/O line to GND. * * PA2 SW0 */ #define BUTTON_SW0 0 #define NUM_BUTTONS 1 #define BUTTON_SW0_BIT (1 << BUTTON_SW0) /************************************************************************************ * 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); /************************************************************************************ * Name: sam_ledinit, sam_setled, and sam_setleds * * Description: * If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs. If * CONFIG_ARCH_LEDS is not defined, then the following interfaces are available to * control the LEDs from user applications. * ************************************************************************************/ #ifndef CONFIG_ARCH_LEDS void sam_ledinit(void); void sam_setled(int led, bool ledon); void sam_setleds(uint8_t ledset); #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_SAM4S_XPLAINED_PRO_INCLUDE_BOARD_H */