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Diffstat (limited to 'ports/nrf/device/nrf52/system_nrf52840.c')
-rw-r--r--ports/nrf/device/nrf52/system_nrf52840.c209
1 files changed, 0 insertions, 209 deletions
diff --git a/ports/nrf/device/nrf52/system_nrf52840.c b/ports/nrf/device/nrf52/system_nrf52840.c
deleted file mode 100644
index 4a94218cc..000000000
--- a/ports/nrf/device/nrf52/system_nrf52840.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/* Copyright (c) 2012 ARM LIMITED
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * * 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.
- *
- * * Neither the name of ARM 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 HOLDER 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.
- *
- */
-
-#include <stdint.h>
-#include <stdbool.h>
-#include "nrf.h"
-#include "system_nrf52840.h"
-
-/*lint ++flb "Enter library region" */
-
-#define __SYSTEM_CLOCK_64M (64000000UL)
-
-static bool errata_36(void);
-static bool errata_98(void);
-static bool errata_103(void);
-static bool errata_115(void);
-static bool errata_120(void);
-
-
-#if defined ( __CC_ARM )
- uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK_64M;
-#elif defined ( __ICCARM__ )
- __root uint32_t SystemCoreClock = __SYSTEM_CLOCK_64M;
-#elif defined ( __GNUC__ )
- uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK_64M;
-#endif
-
-void SystemCoreClockUpdate(void)
-{
- SystemCoreClock = __SYSTEM_CLOCK_64M;
-}
-
-void SystemInit(void)
-{
- /* Workaround for Errata 36 "CLOCK: Some registers are not reset when expected" found at the Errata document
- for your device located at https://infocenter.nordicsemi.com/ */
- if (errata_36()){
- NRF_CLOCK->EVENTS_DONE = 0;
- NRF_CLOCK->EVENTS_CTTO = 0;
- NRF_CLOCK->CTIV = 0;
- }
-
- /* Workaround for Errata 98 "NFCT: Not able to communicate with the peer" found at the Errata document
- for your device located at https://infocenter.nordicsemi.com/ */
- if (errata_98()){
- *(volatile uint32_t *)0x4000568Cul = 0x00038148ul;
- }
-
- /* Workaround for Errata 103 "CCM: Wrong reset value of CCM MAXPACKETSIZE" found at the Errata document
- for your device located at https://infocenter.nordicsemi.com/ */
- if (errata_103()){
- NRF_CCM->MAXPACKETSIZE = 0xFBul;
- }
-
- /* Workaround for Errata 115 "RAM: RAM content cannot be trusted upon waking up from System ON Idle or System OFF mode" found at the Errata document
- for your device located at https://infocenter.nordicsemi.com/ */
- if (errata_115()){
- *(volatile uint32_t *)0x40000EE4 = (*(volatile uint32_t *)0x40000EE4 & 0xFFFFFFF0) | (*(uint32_t *)0x10000258 & 0x0000000F);
- }
-
- /* Workaround for Errata 120 "QSPI: Data read or written is corrupted" found at the Errata document
- for your device located at https://infocenter.nordicsemi.com/ */
- if (errata_120()){
- *(volatile uint32_t *)0x40029640ul = 0x200ul;
- }
-
- /* Enable the FPU if the compiler used floating point unit instructions. __FPU_USED is a MACRO defined by the
- * compiler. Since the FPU consumes energy, remember to disable FPU use in the compiler if floating point unit
- * operations are not used in your code. */
- #if (__FPU_USED == 1)
- SCB->CPACR |= (3UL << 20) | (3UL << 22);
- __DSB();
- __ISB();
- #endif
-
- /* Configure NFCT pins as GPIOs if NFCT is not to be used in your code. If CONFIG_NFCT_PINS_AS_GPIOS is not defined,
- two GPIOs (see Product Specification to see which ones) will be reserved for NFC and will not be available as
- normal GPIOs. */
- #if defined (CONFIG_NFCT_PINS_AS_GPIOS)
- if ((NRF_UICR->NFCPINS & UICR_NFCPINS_PROTECT_Msk) == (UICR_NFCPINS_PROTECT_NFC << UICR_NFCPINS_PROTECT_Pos)){
- NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NRF_UICR->NFCPINS &= ~UICR_NFCPINS_PROTECT_Msk;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NVIC_SystemReset();
- }
- #endif
-
- /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
- defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
- reserved for PinReset and not available as normal GPIO. */
- #if defined (CONFIG_GPIO_AS_PINRESET)
- if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
- ((NRF_UICR->PSELRESET[1] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
- NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NRF_UICR->PSELRESET[0] = 18;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NRF_UICR->PSELRESET[1] = 18;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
- while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
- NVIC_SystemReset();
- }
- #endif
-
- /* Enable SWO trace functionality. If ENABLE_SWO is not defined, SWO pin will be used as GPIO (see Product
- Specification to see which one). */
- #if defined (ENABLE_SWO)
- CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
- NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Serial << CLOCK_TRACECONFIG_TRACEMUX_Pos;
- NRF_P1->PIN_CNF[0] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
- #endif
-
- /* Enable Trace functionality. If ENABLE_TRACE is not defined, TRACE pins will be used as GPIOs (see Product
- Specification to see which ones). */
- #if defined (ENABLE_TRACE)
- CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
- NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Parallel << CLOCK_TRACECONFIG_TRACEMUX_Pos;
- NRF_P0->PIN_CNF[7] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
- NRF_P1->PIN_CNF[0] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
- NRF_P0->PIN_CNF[12] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
- NRF_P0->PIN_CNF[11] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
- NRF_P1->PIN_CNF[9] = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
- #endif
-
- SystemCoreClockUpdate();
-}
-
-
-static bool errata_36(void)
-{
- if ((*(uint32_t *)0x10000130ul == 0x8ul) && (*(uint32_t *)0x10000134ul == 0x0ul)){
- return true;
- }
-
- return false;
-}
-
-
-static bool errata_98(void)
-{
- if ((*(uint32_t *)0x10000130ul == 0x8ul) && (*(uint32_t *)0x10000134ul == 0x0ul)){
- return true;
- }
-
- return false;
-}
-
-
-static bool errata_103(void)
-{
- if ((*(uint32_t *)0x10000130ul == 0x8ul) && (*(uint32_t *)0x10000134ul == 0x0ul)){
- return true;
- }
-
- return false;
-}
-
-
-static bool errata_115(void)
-{
- if ((*(uint32_t *)0x10000130ul == 0x8ul) && (*(uint32_t *)0x10000134ul == 0x0ul)){
- return true;
- }
-
- return false;
-}
-
-
-static bool errata_120(void)
-{
- if ((*(uint32_t *)0x10000130ul == 0x8ul) && (*(uint32_t *)0x10000134ul == 0x0ul)){
- return true;
- }
-
- return false;
-}
-
-/*lint --flb "Leave library region" */
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