nrf: Remove unused hal files

Makes it easier to keep track of what's left to rewrite.

8 files changed, 0 insertions, 643 deletions

diff --git a/ports/nrf/Makefile b/ports/nrf/Makefile
index a6e367364..a8a942fc0 100644
--- a/ports/nrf/Makefile
+++ b/ports/nrf/Makefile
@@ -98,7 +98,6 @@ SRC_HAL = $(addprefix hal/,\
 	hal_twi.c \
 	hal_adc.c \
 	hal_adce.c \
-	hal_temp.c \
 	hal_gpio.c \
 	hal_rng.c \
 	hal_pwm.c \
diff --git a/ports/nrf/hal/hal_qspie.c b/ports/nrf/hal/hal_qspie.c
deleted file mode 100644
index 90863b620..000000000
--- a/ports/nrf/hal/hal_qspie.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "mphalport.h"
-#include "hal_qspie.h"
-
-#ifdef HAL_QSPIE_MODULE_ENABLED
-
-#define QSPI_IRQ_NUM QSPI_IRQn
-#define QSPI_BASE ((NRF_QSPI_Type *)NRF_QSPI_BASE)
-
-// frequency, 32 MHz / (SCKFREQ + 1)
-static const uint32_t hal_qspi_frequency_lookup[] = {
-    (15 << QSPI_IFCONFIG1_SCKFREQ_Pos), // 2 Mbps
-    (7  << QSPI_IFCONFIG1_SCKFREQ_Pos), // 4 Mbps
-    (3  << QSPI_IFCONFIG1_SCKFREQ_Pos), // 8 Mbps
-    (1  << QSPI_IFCONFIG1_SCKFREQ_Pos), // 16 Mbps
-    (0  << QSPI_IFCONFIG1_SCKFREQ_Pos), // 32 Mbps
-};
-
-void hal_qspi_master_init(NRF_QSPI_Type * p_instance, hal_qspi_init_t const * p_qspi_init)
-{
-	// configure SCK
-    p_instance->PSEL.SCK = (p_qspi_init->clk_pin << QSPI_PSEL_SCK_PIN_Pos)
-                         | (p_qspi_init->clk_pin_port << QSPI_PSEL_SCK_PORT_Pos)
-                         | (QSPI_PSEL_SCK_CONNECT_Connected << QSPI_PSEL_SCK_CONNECT_Pos);
-
-    // configure CS
-    if (p_qspi_init->use_csn) {
-        p_instance->PSEL.CSN = (p_qspi_init->clk_pin << QSPI_PSEL_CSN_PIN_Pos)
-                             | (p_qspi_init->clk_pin_port << QSPI_PSEL_CSN_PORT_Pos)
-                             | (QSPI_PSEL_CSN_CONNECT_Connected << QSPI_PSEL_CSN_CONNECT_Pos);
-    } else {
-        p_instance->PSEL.CSN = (QSPI_PSEL_CSN_CONNECT_Disconnected << QSPI_PSEL_CSN_CONNECT_Pos);
-    }
-
-    // configure MOSI/IO0, valid for all configurations
-    p_instance->PSEL.IO0 = (p_qspi_init->d0_mosi_pin << QSPI_PSEL_IO0_PIN_Pos)
-                        | (p_qspi_init->d0_mosi_pin_port << QSPI_PSEL_IO0_PORT_Pos)
-                        | (QSPI_PSEL_IO0_CONNECT_Connected << QSPI_PSEL_IO0_CONNECT_Pos);
-
-    if (p_qspi_init->data_line != HAL_QSPI_DATA_LINE_SINGLE) {
-        // configure MISO/IO1
-        p_instance->PSEL.IO1 = (p_qspi_init->d1_miso_pin << QSPI_PSEL_IO1_PIN_Pos)
-                            | (p_qspi_init->d1_miso_pin_port << QSPI_PSEL_IO1_PORT_Pos)
-                            | (QSPI_PSEL_IO1_CONNECT_Connected << QSPI_PSEL_IO1_CONNECT_Pos);
-
-        if (p_qspi_init->data_line == HAL_QSPI_DATA_LINE_QUAD) {
-            // configure IO2
-            p_instance->PSEL.IO2 = (p_qspi_init->d2_pin << QSPI_PSEL_IO2_PIN_Pos)
-                                | (p_qspi_init->d2_pin_port << QSPI_PSEL_IO2_PORT_Pos)
-                                | (QSPI_PSEL_IO2_CONNECT_Connected << QSPI_PSEL_IO2_CONNECT_Pos);
-
-            // configure IO3
-            p_instance->PSEL.IO3 = (p_qspi_init->d3_pin << QSPI_PSEL_IO3_PIN_Pos)
-                                | (p_qspi_init->d3_pin_port << QSPI_PSEL_IO3_PORT_Pos)
-                                | (QSPI_PSEL_IO3_CONNECT_Connected << QSPI_PSEL_IO3_CONNECT_Pos);
-        }
-    }
-
-    uint32_t mode;
-    switch (p_qspi_init->mode) {
-        case HAL_SPI_MODE_CPOL0_CPHA0:
-            mode = (QSPI_IFCONFIG1_SPIMODE_MODE0 << QSPI_IFCONFIG1_SPIMODE_Pos);
-            break;
-        case HAL_SPI_MODE_CPOL1_CPHA1:
-            mode = (QSPI_IFCONFIG1_SPIMODE_MODE3 << QSPI_IFCONFIG1_SPIMODE_Pos);
-            break;
-        default:
-            mode = 0;
-            break;
-    }
-
-    // interface config1
-    p_instance->IFCONFIG1 = hal_qspi_frequency_lookup[p_qspi_init->freq]
-                          | mode
-                          | (1 << QSPI_IFCONFIG1_SCKDELAY_Pos); // number of 16 MHz periods (62.5 ns)
-
-    p_instance->ENABLE = 1;
-}
-
-void hal_qspi_master_tx_rx(NRF_QSPI_Type  * p_instance,
-                           uint16_t         transfer_size,
-                           const uint8_t  * tx_data,
-                           uint8_t        * rx_data)
-{
-	p_instance->READ.DST = (uint32_t)rx_data;
-	p_instance->READ.CNT = transfer_size;
-	p_instance->READ.SRC = (uint32_t)tx_data;
-	p_instance->READ.CNT = transfer_size;
-	p_instance->TASKS_ACTIVATE = 1;
-	while (p_instance->EVENTS_READY == 0) {
-		;
-	}
-
-	p_instance->TASKS_ACTIVATE = 0;
-}
-
-#endif // HAL_QSPIE_MODULE_ENABLED
diff --git a/ports/nrf/hal/hal_qspie.h b/ports/nrf/hal/hal_qspie.h
deleted file mode 100644
index c964ff438..000000000
--- a/ports/nrf/hal/hal_qspie.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef HAL_QSPIE_H__
-#define HAL_QSPIE_H__
-
-#ifdef HAL_QSPIE_MODULE_ENABLED
-
-#if NRF52840_XXAA
-
-#include <nrf.h>
-
-#else
-#error "Device not supported."
-#endif
-
-/**
-  * @brief  Quad SPI clock frequency type definition
-  */
-typedef enum {
-    HAL_FREQ_2_Mbps,
-    HAL_FREQ_4_Mbps,
-    HAL_FREQ_8_Mbps,
-    HAL_FREQ_16_Mbps,
-    HAL_FREQ_32_Mbps
-} hal_qspi_clk_freq_t;
-
-/**
-  * @brief  Quad SPI mode type definition
-  */
-typedef enum {
-    HAL_SPI_MODE_CPOL0_CPHA0 = 0, // CPOL = 0, CPHA = 0 (data on leading edge)
-    HAL_SPI_MODE_CPOL1_CPHA1 = 3  // CPOL = 1, CPHA = 1 (data on trailing edge)
-} hal_qspi_mode_t;
-
-/**
-  * @brief  Quad SPI data line configuration type definition
-  */
-typedef enum {
-    HAL_QSPI_DATA_LINE_SINGLE,
-    HAL_QSPI_DATA_LINE_DUAL,
-    HAL_QSPI_DATA_LINE_QUAD
-} hal_qspi_data_line_t;
-
-
-
-/**
-  * @brief  Quad SPI Configuration Structure definition
-  */
-typedef struct {
-    uint8_t d0_mosi_pin;
-    uint8_t d1_miso_pin;
-    uint8_t d2_pin;
-    uint8_t d3_pin;
-    uint8_t clk_pin;
-    uint8_t csn_pin;
-    uint8_t d0_mosi_pin_port;
-    uint8_t d1_miso_pin_port;
-    uint8_t d2_pin_port;
-    uint8_t d3_pin_port;
-    uint8_t clk_pin_port;
-    uint8_t csn_pin_port;
-    bool use_csn;
-    hal_qspi_mode_t mode;
-    hal_qspi_data_line_t data_line;
-    hal_qspi_clk_freq_t freq;
-} hal_qspi_init_t;
-
-/**
-  * @brief  Quad SPI handle Structure definition
-  */
-typedef struct __QSPI_HandleTypeDef
-{
-    NRF_QSPI_Type     *instance;    /* QSPI registers base address */
-    hal_qspi_init_t   init;         /* QSPI initialization parameters */
-} QSPI_HandleTypeDef;
-
-void hal_qspi_master_init(NRF_QSPI_Type * p_instance, hal_qspi_init_t const * p_qspi_init);
-
-void hal_qspi_master_tx_rx(NRF_QSPI_Type  * p_instance,
-                           uint16_t         transfer_size,
-                           const uint8_t  * tx_data,
-                           uint8_t        * rx_data);
-
-#endif // HAL_QSPIE_MODULE_ENABLED
-
-#endif // HAL_QSPIE_H__
diff --git a/ports/nrf/hal/hal_rtc.c b/ports/nrf/hal/hal_rtc.c
deleted file mode 100644
index 4b0201656..000000000
--- a/ports/nrf/hal/hal_rtc.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2016 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "mphalport.h"
-#include "hal_rtc.h"
-#include "hal_irq.h"
-
-#ifdef HAL_RTC_MODULE_ENABLED
-
-#define HAL_LFCLK_FREQ (32768UL)
-#define HAL_RTC_FREQ (10UL)
-#define HAL_RTC_COUNTER_PRESCALER ((HAL_LFCLK_FREQ/HAL_RTC_FREQ)-1)
-
-static hal_rtc_app_callback m_callback;
-
-static uint32_t m_period[sizeof(RTC_BASE_POINTERS) / sizeof(uint32_t)];
-
-void hal_rtc_callback_set(hal_rtc_app_callback callback) {
-    m_callback = callback;
-}
-
-void hal_rtc_init(hal_rtc_conf_t const * p_rtc_conf) {
-    NRF_RTC_Type * p_rtc = RTC_BASE(p_rtc_conf->id);
-
-    // start LFCLK if not already started
-    if (NRF_CLOCK->LFCLKSTAT == 0) {
-        NRF_CLOCK->TASKS_LFCLKSTART = 1;
-        while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0);
-        NRF_CLOCK->EVENTS_LFCLKSTARTED = 0;
-    }
-
-    m_period[p_rtc_conf->id] = p_rtc_conf->period;
-
-    p_rtc->PRESCALER = HAL_RTC_COUNTER_PRESCALER;
-    hal_irq_priority(RTC_IRQ_NUM(p_rtc_conf->id), p_rtc_conf->irq_priority);
-}
-
-void hal_rtc_start(uint8_t id) {
-    NRF_RTC_Type * p_rtc = RTC_BASE(id);
-
-    uint32_t period  = HAL_RTC_FREQ * m_period[id];
-    uint32_t counter = p_rtc->COUNTER;
-
-    p_rtc->CC[0] = counter + period;
-
-    p_rtc->EVTENSET = RTC_EVTEN_COMPARE0_Msk;
-    p_rtc->INTENSET = RTC_INTENSET_COMPARE0_Msk;
-
-    hal_irq_clear(RTC_IRQ_NUM(id));
-    hal_irq_enable(RTC_IRQ_NUM(id));
-
-    p_rtc->TASKS_START = 1;
-}
-
-void hal_rtc_stop(uint8_t id) {
-    NRF_RTC_Type * p_rtc = RTC_BASE(id);
-
-    p_rtc->EVTENCLR = RTC_EVTEN_COMPARE0_Msk;
-    p_rtc->INTENCLR = RTC_INTENSET_COMPARE0_Msk;
-
-    hal_irq_disable(RTC_IRQ_NUM(id));
-
-    p_rtc->TASKS_STOP = 1;
-}
-
-static void common_irq_handler(uint8_t id) {
-    NRF_RTC_Type * p_rtc = RTC_BASE(id);
-
-    // clear all events
-    p_rtc->EVENTS_COMPARE[0] = 0;
-    p_rtc->EVENTS_COMPARE[1] = 0;
-    p_rtc->EVENTS_COMPARE[2] = 0;
-    p_rtc->EVENTS_COMPARE[3] = 0;
-    p_rtc->EVENTS_TICK       = 0;
-    p_rtc->EVENTS_OVRFLW     = 0;
-
-    m_callback(id);
-}
-
-void RTC0_IRQHandler(void)
-{
-    common_irq_handler(0);
-}
-
-void RTC1_IRQHandler(void)
-{
-    common_irq_handler(1);
-}
-
-void RTC2_IRQHandler(void)
-{
-    common_irq_handler(2);
-}
-
-#endif // HAL_RTC_MODULE_ENABLED
-
diff --git a/ports/nrf/hal/hal_rtc.h b/ports/nrf/hal/hal_rtc.h
deleted file mode 100644
index 330df63ea..000000000
--- a/ports/nrf/hal/hal_rtc.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2016 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef HAL_RTC_H__
-#define HAL_RTC_H__
-
-#include "nrf.h"
-
-#define RTC_BASE_POINTERS (const uint32_t[]){NRF_RTC0_BASE, \
-                                             NRF_RTC1_BASE, \
-                                             NRF_RTC2_BASE}
-#define RTC_IRQ_VALUES (const uint32_t[]){RTC0_IRQn, \
-                                          RTC1_IRQn, \
-                                          RTC2_IRQn}
-
-#define RTC_BASE(x) ((NRF_RTC_Type *)RTC_BASE_POINTERS[x])
-#define RTC_IRQ_NUM(x) (RTC_IRQ_VALUES[x])
-
-typedef void (*hal_rtc_app_callback)(uint8_t id);
-
-/**
-  * @brief  RTC Configuration Structure definition
-  */
-typedef struct {
-    uint8_t  id;           /* RTC instance id */
-    uint32_t period;       /* RTC period in ms */
-    uint32_t irq_priority; /* RTC IRQ priority */
-} hal_rtc_conf_t;
-
-void hal_rtc_callback_set(hal_rtc_app_callback callback);
-
-void hal_rtc_init(hal_rtc_conf_t const * p_rtc_config);
-
-void hal_rtc_start(uint8_t id);
-
-void hal_rtc_stop(uint8_t id);
-
-#endif // HAL_RTC_H__
diff --git a/ports/nrf/hal/hal_temp.c b/ports/nrf/hal/hal_temp.c
deleted file mode 100644
index c88814dd1..000000000
--- a/ports/nrf/hal/hal_temp.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Bander F. Ajba
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include "mphalport.h"
-#include "hal_temp.h"
-
-#if BLUETOOTH_SD
-#include "py/nlr.h"
-#include "ble_drv.h"
-#include "nrf_soc.h"
-#define BLUETOOTH_STACK_ENABLED() (ble_drv_stack_enabled())
-#endif // BLUETOOTH_SD
-
-#ifdef HAL_TEMP_MODULE_ENABLED
-
-void hal_temp_init(void) {
-    // @note Workaround for PAN_028 rev2.0A anomaly 31 - TEMP: Temperature offset value has to be manually loaded to the TEMP module
-    *(uint32_t *) 0x4000C504 = 0;
-}
-
-
-
-int32_t hal_temp_read(void) {
-#if BLUETOOTH_SD
-    if (BLUETOOTH_STACK_ENABLED() == 1) {
-        int32_t temp;
-        (void)sd_temp_get(&temp);
-        return temp / 4; // resolution of 0.25 degree celsius
-    }
-#endif // BLUETOOTH_SD
-
-    int32_t volatile temp;
-    hal_temp_init();
-
-    NRF_TEMP->TASKS_START = 1; // Start the temperature measurement.
-
-    while (NRF_TEMP->EVENTS_DATARDY == 0) {
-        // Do nothing.
-    }
-
-    NRF_TEMP->EVENTS_DATARDY = 0;
-
-    // @note Workaround for PAN_028 rev2.0A anomaly 29 - TEMP: Stop task clears the TEMP register. 
-    temp = (((NRF_TEMP->TEMP & MASK_SIGN) != 0) ? (NRF_TEMP->TEMP | MASK_SIGN_EXTENSION) : (NRF_TEMP->TEMP) / 4);
-
-    // @note Workaround for PAN_028 rev2.0A anomaly 30 - TEMP: Temp module analog front end does not power down when DATARDY event occurs.
-    NRF_TEMP->TASKS_STOP = 1; // Stop the temperature measurement. 
-    return temp;
-}
-
-#endif // HAL_TEMP_MODULE_ENABLED
diff --git a/ports/nrf/hal/hal_temp.h b/ports/nrf/hal/hal_temp.h
deleted file mode 100644
index b203c944d..000000000
--- a/ports/nrf/hal/hal_temp.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Bander F. Ajba
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef HAL_TEMP_H__
-#define HAL_TEMP_H__
-
-#include "nrf.h"
-
-#define MASK_SIGN           (0x00000200UL)
-#define MASK_SIGN_EXTENSION (0xFFFFFC00UL)
-
-void hal_temp_init(void);
-
-int32_t hal_temp_read(void);
-
-#endif
\ No newline at end of file
diff --git a/ports/nrf/hal/hal_twie.c b/ports/nrf/hal/hal_twie.c
deleted file mode 100644
index cfa930f1d..000000000
--- a/ports/nrf/hal/hal_twie.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Glenn Ruben Bakke
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "mphalport.h"
-#include "hal_twi.h"
-
-#ifdef HAL_TWIE_MODULE_ENABLED
-
-// EasyDMA variants
-#define TWI_MASTER_BASE(x) ((NRF_TWIM_Type *)TWI_BASE_POINTERS[x])
-#define TWI_SLAVE_BASE(x) ((NRF_TWIS_Type *)TWI_BASE_POINTERS[x])
-
-static const uint32_t hal_twi_frequency_lookup[] = {
-    TWIM_FREQUENCY_FREQUENCY_K100, // 100 kbps
-    TWIM_FREQUENCY_FREQUENCY_K250, // 250 kbps
-    TWIM_FREQUENCY_FREQUENCY_K400, // 400 kbps
-};
-
-void hal_twi_master_init(NRF_TWI_Type * p_instance, hal_twi_init_t const * p_twi_init) {
-    // cast to master type
-    NRF_TWIM_Type * twim_instance = (NRF_TWIM_Type *)p_instance;
-
-    twim_instance->PSEL.SCL  = p_twi_init->scl_pin->pin;
-    twim_instance->PSEL.SDA  = p_twi_init->sda_pin->pin;
-
-#if NRF52840_XXAA
-    twim_instance->PSEL.SCL |= (p_twi_init->scl_pin->port << TWIM_PSEL_SCL_PORT_Pos);
-    twim_instance->PSEL.SDA |= (p_twi_init->sda_pin->port << TWIM_PSEL_SDA_PORT_Pos);
-#endif
-    twim_instance->FREQUENCY = hal_twi_frequency_lookup[p_twi_init->freq];
-    twim_instance->ENABLE    = (TWIM_ENABLE_ENABLE_Enabled << TWIM_ENABLE_ENABLE_Pos);
-}
-
-#include <stdio.h>
-
-void hal_twi_master_tx(NRF_TWI_Type  * p_instance,
-                       uint8_t         addr,
-                       uint16_t        transfer_size,
-                       const uint8_t * tx_data,
-                       bool            stop) {
-    // cast to master type
-    NRF_TWIM_Type * twim_instance = (NRF_TWIM_Type *)p_instance;
-
-    twim_instance->ADDRESS = addr;
-
-    printf("Hal I2C transfer size: %u, addr: %x, stop: %u\n", transfer_size, addr, stop);
-    twim_instance->TXD.MAXCNT     = transfer_size;
-    twim_instance->TXD.PTR        = (uint32_t)tx_data;
-
-    if (stop) {
-        twim_instance->SHORTS = TWIM_SHORTS_LASTTX_STOP_Msk;
-    } else {
-        twim_instance->SHORTS = TWIM_SHORTS_LASTTX_SUSPEND_Msk;
-    }
-
-    if (twim_instance->EVENTS_SUSPENDED == 1) {
-        printf("Resuming\n");
-        twim_instance->EVENTS_SUSPENDED = 0;
-        twim_instance->EVENTS_STOPPED   = 0;
-        twim_instance->TASKS_RESUME     = 1; // in case of resume
-    } else {
-        printf("Starting\n");
-        twim_instance->EVENTS_SUSPENDED = 0;
-        twim_instance->EVENTS_STOPPED   = 0;
-        twim_instance->TASKS_STARTTX    = 1;
-    }
-
-    printf("Going into loop\n");
-    while (twim_instance->EVENTS_STOPPED == 0 && twim_instance->EVENTS_SUSPENDED == 0) {
-        ;
-    }
-}
-
-void hal_twi_master_rx(NRF_TWI_Type  * p_instance,
-                       uint8_t         addr,
-                       uint16_t        transfer_size,
-                       const uint8_t * rx_data) {
-    // cast to master type
-    NRF_TWIM_Type * twim_instance = (NRF_TWIM_Type *)p_instance;
-
-    twim_instance->ADDRESS = addr;
-
-}
-
-void hal_twi_slave_init(NRF_TWI_Type * p_instance, hal_twi_init_t const * p_twi_init) {
-    // cast to slave type
-    NRF_TWIS_Type * twis_instance = (NRF_TWIS_Type *)p_instance;
-    (void)twis_instance;
-}
-
-#endif // HAL_TWIE_MODULE_ENABLED
-