152 lines
4.0 KiB
C
152 lines
4.0 KiB
C
/****************************************************************************
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* arch/arm/src/nrf52/nrf52832_errdata.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <debug.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/irq.h>
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#include <nuttx/arch.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/drivers/drivers.h>
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#include "arm_internal.h"
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#include "chip.h"
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#include "hardware/nrf52_utils.h"
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#include "hardware/nrf52_rng.h"
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#include "hardware/nrf52_ficr.h"
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#include "hardware/nrf52_temp.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static bool errata_16(void)
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{
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if (((getreg32(0xf0000fe0) & 0xff) == 0x6) &&
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((getreg32(0xf0000fe4) & 0x0f) == 0x0))
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{
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if ((getreg32(0xf0000fe8) & 0xf0) == 0x30)
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{
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return true;
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}
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}
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return false;
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}
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static bool errata_66(void)
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{
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/* This piece of code is modified from Nordic SDK , there is no document to
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* describe how to get the errdata information
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*/
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if (((getreg32(0xf0000fe0) & 0xff) == 0x6) &&
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((getreg32(0xf0000fe4) & 0x0f) == 0x0))
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{
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if ((getreg32(0xf0000fe8) & 0xf0) == 0x50)
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{
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return true;
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}
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}
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return false;
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}
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static void nrf52832_errdata_16(void)
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{
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if (errata_16())
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{
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*(volatile uint32_t *)0x4007c074 = 3131961357ul;
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}
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}
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static void nrf52832_errdata_102(void)
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{
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uint32_t regval = getreg32(NRF52_FICR_INFO_VARIANT);
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/* Also addresses erratas 106, 146. Revision 1 chips are affected */
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if (regval == NRF52_FICR_INFO_VARIANT_AAB0 ||
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regval == NRF52_FICR_INFO_VARIANT_ABB0)
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{
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*(volatile uint32_t *) 0x40001774 =
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((*(volatile uint32_t *) 0x40001774) & 0xfffffffe) | 0x01000000;
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}
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}
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static void nrf52832_errdata_66_temp(void)
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{
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/* Workaround for Errata 66 "TEMP: Linearity specification not met with
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* default settings found at the Errata document for your device located
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* at https://infocenter.nordicsemi.com/
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*/
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if (errata_66())
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{
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int i;
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/* slot A : 6 totals */
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for (i = 0; i < 6; i++)
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{
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putreg32(getreg32(NRF52_FICR_TEMP_A0 + i * 4),
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NRF52_TEMP_A0 + i * 4);
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}
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/* Slot B : 6 totals */
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for (i = 0 ; i < 6; i++)
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{
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putreg32(getreg32(NRF52_FICR_TEMP_B0 + i * 4),
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NRF52_TEMP_B0 + i * 4);
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}
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/* slot C : 5 totals */
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for (i = 0; i < 5; i++)
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{
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putreg32(getreg32(NRF52_FICR_TEMP_T0 + i * 4),
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NRF52_TEMP_T0 + i * 4);
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}
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void nrf52832_errdata_init(void)
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{
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nrf52832_errdata_16();
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nrf52832_errdata_66_temp();
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nrf52832_errdata_102();
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}
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