mlaz commented on a change in pull request #2466:
URL: https://github.com/apache/mynewt-core/pull/2466#discussion_r570523381



##########
File path: hw/mcu/nxp/kinetis/src/hal_qspi.c
##########
@@ -0,0 +1,410 @@
+/*
+ * 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.
+ */
+
+#include <string.h>
+#include <assert.h>
+#include <stdint.h>
+#include "os/mynewt.h"
+#if MYNEWT_VAL(QSPI_ENABLE)
+#include <mcu/cmsis_nvic.h>
+#include <hal/hal_flash_int.h>
+
+#include <fsl_port.h>
+#include <fsl_qspi.h>
+#include <fsl_clock.h>
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) < 1
+#error QSPI_FLASH_SECTOR_SIZE must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) < 1
+#error QSPI_FLASH_SECTOR_COUNT must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+/* #if MYNEWT_VAL(QSPI_PIN_CS) < 0 */
+/* #error QSPI_PIN_CS must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_SCK) < 0 */
+/* #error QSPI_PIN_SCK must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO0) < 0 */
+/* #error QSPI_PIN_DIO0 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO1) < 0 */
+/* #error QSPI_PIN_DIO1 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO2) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO2 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO3) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO3 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+uint32_t lut[FSL_FEATURE_QSPI_LUT_DEPTH] = {
+    /* Seq0 :Quad Read */
+    /* CMD:        0xEB - Quad Read, Single pad */
+    /* ADDR:       0x18 - 24bit address, Quad pads */
+    /* DUMMY:      0x06 - 6 clock cyles, Quad pads */
+    /* READ:       0x80 - Read 128 bytes, Quad pads */
+    /* JUMP_ON_CS: 0 */
+    [0] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0xEB, QSPI_ADDR, QSPI_PAD_4, 
0x18),
+    [1] = QSPI_LUT_SEQ(QSPI_DUMMY, QSPI_PAD_4, 0x06, QSPI_READ, QSPI_PAD_4, 
0x80),
+    [2] = QSPI_LUT_SEQ(QSPI_JMP_ON_CS, QSPI_PAD_1, 0x0, 0, 0, 0),
+
+    /* Seq1: Write Enable */
+    /* CMD:      0x06 - Write Enable, Single pad */
+    [4] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x06, 0, 0, 0),
+
+    /* Seq2: Erase All */
+    /* CMD:    0x60 - Erase All chip, Single pad */
+    [8] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x60, 0, 0, 0),
+
+    /* Seq3: Read Status */
+    /* CMD:    0x05 - Read Status, single pad */
+    /* READ:   0x01 - Read 1 byte */
+    [12] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x05, QSPI_READ, QSPI_PAD_1, 
0x1),
+
+    /* Seq4: Page Program */
+    /* CMD:    0x02 - Page Program, Single pad */
+    /* ADDR:   0x18 - 24bit address, Single pad */
+    /* WRITE:  0x80 - Write 128 bytes at one pass, Single pad */
+    [16] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x02, QSPI_ADDR, QSPI_PAD_1, 
0x18),
+    [17] = QSPI_LUT_SEQ(QSPI_WRITE, QSPI_PAD_1, 0x80, 0, 0, 0),
+
+    /* Seq5: Write Register */
+    /* CMD:    0x01 - Write Status Register, single pad */
+    /* WRITE:  0x01 - Write 1 byte of data, single pad */
+    [20] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x01, QSPI_WRITE, QSPI_PAD_1, 
0x1),
+
+    /* Seq6: Read Config Register */
+    /* CMD:  0x15 - Read Config register, single pad */
+    /* READ: 0x01 - Read 1 byte */
+    [24] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x15, QSPI_READ, QSPI_PAD_1, 
0x1),
+
+    /* Seq7: Erase Sector */
+    /* CMD:  0x20 - Sector Erase, single pad */
+    /* ADDR: 0x18 - 24 bit address, single pad */
+    [28] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x20, QSPI_ADDR, QSPI_PAD_1, 
0x18),
+
+    /* Match MISRA rule */
+    [63] = 0};
+
+qspi_flash_config_t g_qspi_flash_cfg = {
+    .flashA1Size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) / 2,
+    .flashA2Size = 0,
+#if (FSL_FEATURE_QSPI_SUPPORT_PARALLEL_MODE)
+    .flashB1Size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) / 2,
+    .flashB2Size = 0,
+#endif
+#if (!FSL_FEATURE_QSPI_HAS_NO_TDH)
+    .dataHoldTime = 0,
+#endif
+    .CSHoldTime = 0,
+    .CSSetupTime = 0,
+    .cloumnspace = 0,
+    .dataLearnValue = 0,
+    .endian = kQSPI_64LittleEndian,
+    .enableWordAddress = false
+};
+
+static void
+check_if_finished(void)
+{
+    uint32_t val = 0;
+    /* Check WIP bit */
+    do
+    {
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        QSPI_ClearFifo(QuadSPI0, kQSPI_RxFifo);
+        QSPI_ExecuteIPCommand(QuadSPI0, 12U);
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        val = QuadSPI0->RBDR[0];
+        /* Clear ARDB area */
+        QSPI_ClearErrorFlag(QuadSPI0, kQSPI_RxBufferDrain);
+    } while (val & 0x1);
+}
+
+static void
+cmd_write_enable()
+{
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ExecuteIPCommand(QuadSPI0, 4U);
+}
+
+static void
+read_page(uint32_t address, uint32_t* dst)
+{
+    int i;
+    for (i = 0; i < MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) / 4; i++)
+    {
+        dst[i] = ((uint32_t*)address)[i];
+    }
+}
+
+static int
+nxp_qspi_read(const struct hal_flash *dev,
+              uint32_t address,
+              void *dst,
+              uint32_t num_bytes)
+{
+    uint32_t npages;
+    if ((address % dev->hf_align) != 0) {
+        return OS_EINVAL;
+    }
+    if ((num_bytes % MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE)) != 0) {
+        return OS_EINVAL;
+    }
+
+    npages = num_bytes / MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    while (npages) {
+        read_page(address,  dst);
+        npages--;
+        address += MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    }
+    return 0;
+}
+
+static void
+write_page(uint32_t dest_addr, uint32_t *src_addr)
+{
+    uint32_t leftLongWords = 0;
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+
+    QSPI_SetIPCommandAddress(QuadSPI0, dest_addr);
+    cmd_write_enable();
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+
+    /* First write some data into TXFIFO to prevent from underrun */
+    QSPI_WriteBlocking(QuadSPI0, src_addr, FSL_FEATURE_QSPI_TXFIFO_DEPTH * 4);
+    src_addr += FSL_FEATURE_QSPI_TXFIFO_DEPTH;
+
+    /* Start the program */
+    QSPI_SetIPCommandSize(QuadSPI0, MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE));
+    QSPI_ExecuteIPCommand(QuadSPI0, 16U);
+
+    leftLongWords = MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) - 16 * sizeof(uint32_t);
+    QSPI_WriteBlocking(QuadSPI0, src_addr, leftLongWords);
+
+    /* Wait until flash finished program */
+    check_if_finished();
+    while (QSPI_GetStatusFlags(QuadSPI0) & (kQSPI_Busy | kQSPI_IPAccess))
+    {
+    }
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) && 
(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+    QSPI_ClearCache(QuadSPI0);
+#endif
+}
+
+static int
+nxp_qspi_write(const struct hal_flash *dev,
+               uint32_t address,
+               const void *src,
+               uint32_t num_bytes)
+{
+    uint32_t npages;
+    if ((address % dev->hf_align) != 0) {
+        return OS_EINVAL;
+    }
+    if ((num_bytes % MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE)) != 0) {
+        return OS_EINVAL;
+    }
+
+    npages = num_bytes / MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    while (npages) {
+        write_page(address, (uint32_t*) src);
+        npages--;
+        address += MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    }
+    return 0;
+}
+
+static int
+nxp_qspi_erase_sector(const struct hal_flash *dev,
+                         uint32_t sector_address)
+{
+    sector_address = sector_address / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    sector_address *= MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+    QSPI_SetIPCommandAddress(QuadSPI0, sector_address);
+    cmd_write_enable();
+    QSPI_ExecuteIPCommand(QuadSPI0, 28U);
+    check_if_finished();
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) && 
(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+    QSPI_ClearCache(QuadSPI0);
+#endif
+    return 0;
+}
+
+static int
+nxp_qspi_erase(const struct hal_flash *dev,
+               uint32_t address,
+               uint32_t size)
+{
+    uint32_t nsects;
+
+    address = address / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    address *= MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    nsects = size / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    nsects += size % MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    while (nsects) {
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+        QSPI_SetIPCommandAddress(QuadSPI0, address);
+        cmd_write_enable();
+        QSPI_ExecuteIPCommand(QuadSPI0, 28U);
+        check_if_finished();
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) &&  \
+    (FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+        QSPI_ClearCache(QuadSPI0);
+#endif
+        nsects--;
+        address += MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    }
+    return 0;
+}
+
+static int
+nxp_qspi_sector_info(const struct hal_flash *dev,
+                     int idx,
+                     uint32_t *address,
+                     uint32_t *sz)
+{
+    *address = idx * MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    *sz = MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    return 0;
+}
+
+/* Enable Quad mode */
+static void
+enable_quad_mode(void)
+{
+    uint32_t val[4] = {0x40U, 0, 0, 0};
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_SetIPCommandAddress(QuadSPI0, FSL_FEATURE_QSPI_AMBA_BASE);
+
+    /* Clear Tx FIFO */
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+
+    /* Write enable */
+    cmd_write_enable();
+
+    /* Write data into TX FIFO, needs to write at least 16 bytes of data */
+    QSPI_WriteBlocking(QuadSPI0, val, 16U);
+
+    /* Set seq id, write register */
+    QSPI_ExecuteIPCommand(QuadSPI0, 20);
+
+    /* Wait until finished */
+    check_if_finished();
+}
+
+static int
+nxp_qspi_init(const struct hal_flash *dev)
+{
+    qspi_config_t qspi_cfg = {0};
+
+    /*Get QSPI default settings and configure the qspi */
+    QSPI_GetDefaultQspiConfig(&qspi_cfg);
+
+    /*Set AHB buffer size for reading data through AHB bus */
+/* #if MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) <= FSL_FEATURE_QSPI_AHB_BUFFER_SIZE */
+    qspi_cfg.AHBbufferSize[3] = MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+/* #else */
+/*     qspi_cfg.AHBbufferSize[3] = FSL_FEATURE_QSPI_AHB_BUFFER_SIZE; */
+/* #endif */
+
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_SCKA), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_SSA), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIOA0), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIOA1), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIOA2), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIO3A), 
MYNEWT_VAL(QSPIA_MUX));
+
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_SCKB), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_SSB), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOB0), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOB1), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOB2), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOBA), 
MYNEWT_VAL(QSPIB_MUX));
+
+    //Configure the baudrate too.
+
+    QSPI_Init(QuadSPI0, &qspi_cfg, CLOCK_GetFreq(kCLOCK_McgPll0Clk));
+
+    memcpy(g_qspi_flash_cfg.lookuptable, lut, sizeof(lut));
+    /*According to serial flash feature to configure flash settings */
+    QSPI_SetFlashConfig(QuadSPI0, &g_qspi_flash_cfg);
+
+#if FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC
+    QSPI_ClearCache(QuadSPI0);
+#endif
+
+    enable_quad_mode();
+    return 0;
+}
+
+static const struct hal_flash_funcs nxp_qspi_funcs = {
+        .hff_read = nxp_qspi_read,
+        .hff_write = nxp_qspi_write,
+        .hff_erase_sector = nxp_qspi_erase_sector,
+        .hff_sector_info = nxp_qspi_sector_info,
+        .hff_init = nxp_qspi_init,
+        .hff_erase = nxp_qspi_erase
+    };
+
+const struct hal_flash nxp_qspi_dev = {
+        .hf_itf = &nxp_qspi_funcs,
+        .hf_base_addr = FSL_FEATURE_QSPI_AMBA_BASE,
+        .hf_size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE),
+        .hf_sector_cnt = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT),
+        .hf_align = 8,
+        .hf_erased_val = 0xff,
+    };

Review comment:
       Addressed.

##########
File path: hw/mcu/nxp/kinetis/src/hal_qspi.c
##########
@@ -0,0 +1,410 @@
+/*
+ * 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.
+ */
+
+#include <string.h>
+#include <assert.h>
+#include <stdint.h>
+#include "os/mynewt.h"
+#if MYNEWT_VAL(QSPI_ENABLE)
+#include <mcu/cmsis_nvic.h>
+#include <hal/hal_flash_int.h>
+
+#include <fsl_port.h>
+#include <fsl_qspi.h>
+#include <fsl_clock.h>
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) < 1
+#error QSPI_FLASH_SECTOR_SIZE must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) < 1
+#error QSPI_FLASH_SECTOR_COUNT must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+/* #if MYNEWT_VAL(QSPI_PIN_CS) < 0 */
+/* #error QSPI_PIN_CS must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_SCK) < 0 */
+/* #error QSPI_PIN_SCK must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO0) < 0 */
+/* #error QSPI_PIN_DIO0 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO1) < 0 */
+/* #error QSPI_PIN_DIO1 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO2) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO2 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO3) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO3 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+uint32_t lut[FSL_FEATURE_QSPI_LUT_DEPTH] = {
+    /* Seq0 :Quad Read */
+    /* CMD:        0xEB - Quad Read, Single pad */
+    /* ADDR:       0x18 - 24bit address, Quad pads */
+    /* DUMMY:      0x06 - 6 clock cyles, Quad pads */
+    /* READ:       0x80 - Read 128 bytes, Quad pads */
+    /* JUMP_ON_CS: 0 */
+    [0] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0xEB, QSPI_ADDR, QSPI_PAD_4, 
0x18),
+    [1] = QSPI_LUT_SEQ(QSPI_DUMMY, QSPI_PAD_4, 0x06, QSPI_READ, QSPI_PAD_4, 
0x80),
+    [2] = QSPI_LUT_SEQ(QSPI_JMP_ON_CS, QSPI_PAD_1, 0x0, 0, 0, 0),
+
+    /* Seq1: Write Enable */
+    /* CMD:      0x06 - Write Enable, Single pad */
+    [4] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x06, 0, 0, 0),
+
+    /* Seq2: Erase All */
+    /* CMD:    0x60 - Erase All chip, Single pad */
+    [8] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x60, 0, 0, 0),
+
+    /* Seq3: Read Status */
+    /* CMD:    0x05 - Read Status, single pad */
+    /* READ:   0x01 - Read 1 byte */
+    [12] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x05, QSPI_READ, QSPI_PAD_1, 
0x1),
+
+    /* Seq4: Page Program */
+    /* CMD:    0x02 - Page Program, Single pad */
+    /* ADDR:   0x18 - 24bit address, Single pad */
+    /* WRITE:  0x80 - Write 128 bytes at one pass, Single pad */
+    [16] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x02, QSPI_ADDR, QSPI_PAD_1, 
0x18),
+    [17] = QSPI_LUT_SEQ(QSPI_WRITE, QSPI_PAD_1, 0x80, 0, 0, 0),
+
+    /* Seq5: Write Register */
+    /* CMD:    0x01 - Write Status Register, single pad */
+    /* WRITE:  0x01 - Write 1 byte of data, single pad */
+    [20] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x01, QSPI_WRITE, QSPI_PAD_1, 
0x1),
+
+    /* Seq6: Read Config Register */
+    /* CMD:  0x15 - Read Config register, single pad */
+    /* READ: 0x01 - Read 1 byte */
+    [24] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x15, QSPI_READ, QSPI_PAD_1, 
0x1),
+
+    /* Seq7: Erase Sector */
+    /* CMD:  0x20 - Sector Erase, single pad */
+    /* ADDR: 0x18 - 24 bit address, single pad */
+    [28] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x20, QSPI_ADDR, QSPI_PAD_1, 
0x18),
+
+    /* Match MISRA rule */
+    [63] = 0};
+
+qspi_flash_config_t g_qspi_flash_cfg = {
+    .flashA1Size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) / 2,
+    .flashA2Size = 0,
+#if (FSL_FEATURE_QSPI_SUPPORT_PARALLEL_MODE)
+    .flashB1Size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) / 2,
+    .flashB2Size = 0,
+#endif
+#if (!FSL_FEATURE_QSPI_HAS_NO_TDH)
+    .dataHoldTime = 0,
+#endif
+    .CSHoldTime = 0,
+    .CSSetupTime = 0,
+    .cloumnspace = 0,
+    .dataLearnValue = 0,
+    .endian = kQSPI_64LittleEndian,
+    .enableWordAddress = false
+};
+
+static void
+check_if_finished(void)
+{
+    uint32_t val = 0;
+    /* Check WIP bit */
+    do
+    {
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        QSPI_ClearFifo(QuadSPI0, kQSPI_RxFifo);
+        QSPI_ExecuteIPCommand(QuadSPI0, 12U);
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        val = QuadSPI0->RBDR[0];
+        /* Clear ARDB area */
+        QSPI_ClearErrorFlag(QuadSPI0, kQSPI_RxBufferDrain);
+    } while (val & 0x1);
+}
+
+static void
+cmd_write_enable()
+{
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ExecuteIPCommand(QuadSPI0, 4U);
+}
+
+static void
+read_page(uint32_t address, uint32_t* dst)
+{
+    int i;
+    for (i = 0; i < MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) / 4; i++)
+    {
+        dst[i] = ((uint32_t*)address)[i];
+    }
+}
+
+static int
+nxp_qspi_read(const struct hal_flash *dev,
+              uint32_t address,
+              void *dst,
+              uint32_t num_bytes)
+{
+    uint32_t npages;
+    if ((address % dev->hf_align) != 0) {
+        return OS_EINVAL;
+    }
+    if ((num_bytes % MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE)) != 0) {
+        return OS_EINVAL;
+    }
+
+    npages = num_bytes / MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    while (npages) {
+        read_page(address,  dst);
+        npages--;
+        address += MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    }
+    return 0;
+}
+
+static void
+write_page(uint32_t dest_addr, uint32_t *src_addr)
+{
+    uint32_t leftLongWords = 0;
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+
+    QSPI_SetIPCommandAddress(QuadSPI0, dest_addr);
+    cmd_write_enable();
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+
+    /* First write some data into TXFIFO to prevent from underrun */
+    QSPI_WriteBlocking(QuadSPI0, src_addr, FSL_FEATURE_QSPI_TXFIFO_DEPTH * 4);
+    src_addr += FSL_FEATURE_QSPI_TXFIFO_DEPTH;
+
+    /* Start the program */
+    QSPI_SetIPCommandSize(QuadSPI0, MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE));
+    QSPI_ExecuteIPCommand(QuadSPI0, 16U);
+
+    leftLongWords = MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) - 16 * sizeof(uint32_t);
+    QSPI_WriteBlocking(QuadSPI0, src_addr, leftLongWords);
+
+    /* Wait until flash finished program */
+    check_if_finished();
+    while (QSPI_GetStatusFlags(QuadSPI0) & (kQSPI_Busy | kQSPI_IPAccess))
+    {
+    }
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) && 
(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+    QSPI_ClearCache(QuadSPI0);
+#endif
+}
+
+static int
+nxp_qspi_write(const struct hal_flash *dev,
+               uint32_t address,
+               const void *src,
+               uint32_t num_bytes)
+{
+    uint32_t npages;
+    if ((address % dev->hf_align) != 0) {
+        return OS_EINVAL;
+    }
+    if ((num_bytes % MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE)) != 0) {
+        return OS_EINVAL;
+    }
+
+    npages = num_bytes / MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    while (npages) {
+        write_page(address, (uint32_t*) src);
+        npages--;
+        address += MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    }
+    return 0;
+}
+
+static int
+nxp_qspi_erase_sector(const struct hal_flash *dev,
+                         uint32_t sector_address)
+{
+    sector_address = sector_address / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    sector_address *= MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+    QSPI_SetIPCommandAddress(QuadSPI0, sector_address);
+    cmd_write_enable();
+    QSPI_ExecuteIPCommand(QuadSPI0, 28U);
+    check_if_finished();
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) && 
(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+    QSPI_ClearCache(QuadSPI0);
+#endif
+    return 0;
+}
+
+static int
+nxp_qspi_erase(const struct hal_flash *dev,
+               uint32_t address,
+               uint32_t size)
+{
+    uint32_t nsects;
+
+    address = address / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    address *= MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    nsects = size / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    nsects += size % MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    while (nsects) {
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+        QSPI_SetIPCommandAddress(QuadSPI0, address);
+        cmd_write_enable();
+        QSPI_ExecuteIPCommand(QuadSPI0, 28U);
+        check_if_finished();
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) &&  \
+    (FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+        QSPI_ClearCache(QuadSPI0);
+#endif
+        nsects--;
+        address += MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    }
+    return 0;
+}
+
+static int
+nxp_qspi_sector_info(const struct hal_flash *dev,
+                     int idx,
+                     uint32_t *address,
+                     uint32_t *sz)
+{
+    *address = idx * MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    *sz = MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    return 0;
+}
+
+/* Enable Quad mode */
+static void
+enable_quad_mode(void)
+{
+    uint32_t val[4] = {0x40U, 0, 0, 0};
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_SetIPCommandAddress(QuadSPI0, FSL_FEATURE_QSPI_AMBA_BASE);
+
+    /* Clear Tx FIFO */
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+
+    /* Write enable */
+    cmd_write_enable();
+
+    /* Write data into TX FIFO, needs to write at least 16 bytes of data */
+    QSPI_WriteBlocking(QuadSPI0, val, 16U);
+
+    /* Set seq id, write register */
+    QSPI_ExecuteIPCommand(QuadSPI0, 20);
+
+    /* Wait until finished */
+    check_if_finished();
+}
+
+static int
+nxp_qspi_init(const struct hal_flash *dev)
+{
+    qspi_config_t qspi_cfg = {0};
+
+    /*Get QSPI default settings and configure the qspi */
+    QSPI_GetDefaultQspiConfig(&qspi_cfg);
+
+    /*Set AHB buffer size for reading data through AHB bus */
+/* #if MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) <= FSL_FEATURE_QSPI_AHB_BUFFER_SIZE */
+    qspi_cfg.AHBbufferSize[3] = MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+/* #else */
+/*     qspi_cfg.AHBbufferSize[3] = FSL_FEATURE_QSPI_AHB_BUFFER_SIZE; */
+/* #endif */
+
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_SCKA), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_SSA), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIOA0), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIOA1), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIOA2), 
MYNEWT_VAL(QSPIA_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIA_PORT), MYNEWT_VAL(QSPI_PIN_DIO3A), 
MYNEWT_VAL(QSPIA_MUX));
+
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_SCKB), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_SSB), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOB0), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOB1), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOB2), 
MYNEWT_VAL(QSPIB_MUX));
+    PORT_SetPinMux(MYNEWT_VAL(QSPIB_PORT), MYNEWT_VAL(QSPI_PIN_DIOBA), 
MYNEWT_VAL(QSPIB_MUX));
+
+    //Configure the baudrate too.

Review comment:
       Addressed.

##########
File path: hw/mcu/nxp/kinetis/src/hal_qspi.c
##########
@@ -0,0 +1,410 @@
+/*
+ * 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.
+ */
+
+#include <string.h>
+#include <assert.h>
+#include <stdint.h>
+#include "os/mynewt.h"
+#if MYNEWT_VAL(QSPI_ENABLE)
+#include <mcu/cmsis_nvic.h>
+#include <hal/hal_flash_int.h>
+
+#include <fsl_port.h>
+#include <fsl_qspi.h>
+#include <fsl_clock.h>
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) < 1
+#error QSPI_FLASH_SECTOR_SIZE must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) < 1
+#error QSPI_FLASH_SECTOR_COUNT must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+/* #if MYNEWT_VAL(QSPI_PIN_CS) < 0 */
+/* #error QSPI_PIN_CS must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_SCK) < 0 */
+/* #error QSPI_PIN_SCK must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO0) < 0 */
+/* #error QSPI_PIN_DIO0 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO1) < 0 */
+/* #error QSPI_PIN_DIO1 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO2) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO2 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO3) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO3 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+uint32_t lut[FSL_FEATURE_QSPI_LUT_DEPTH] = {
+    /* Seq0 :Quad Read */
+    /* CMD:        0xEB - Quad Read, Single pad */
+    /* ADDR:       0x18 - 24bit address, Quad pads */
+    /* DUMMY:      0x06 - 6 clock cyles, Quad pads */
+    /* READ:       0x80 - Read 128 bytes, Quad pads */
+    /* JUMP_ON_CS: 0 */
+    [0] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0xEB, QSPI_ADDR, QSPI_PAD_4, 
0x18),
+    [1] = QSPI_LUT_SEQ(QSPI_DUMMY, QSPI_PAD_4, 0x06, QSPI_READ, QSPI_PAD_4, 
0x80),
+    [2] = QSPI_LUT_SEQ(QSPI_JMP_ON_CS, QSPI_PAD_1, 0x0, 0, 0, 0),
+
+    /* Seq1: Write Enable */
+    /* CMD:      0x06 - Write Enable, Single pad */
+    [4] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x06, 0, 0, 0),
+
+    /* Seq2: Erase All */
+    /* CMD:    0x60 - Erase All chip, Single pad */
+    [8] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x60, 0, 0, 0),
+
+    /* Seq3: Read Status */
+    /* CMD:    0x05 - Read Status, single pad */
+    /* READ:   0x01 - Read 1 byte */
+    [12] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x05, QSPI_READ, QSPI_PAD_1, 
0x1),
+
+    /* Seq4: Page Program */
+    /* CMD:    0x02 - Page Program, Single pad */
+    /* ADDR:   0x18 - 24bit address, Single pad */
+    /* WRITE:  0x80 - Write 128 bytes at one pass, Single pad */
+    [16] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x02, QSPI_ADDR, QSPI_PAD_1, 
0x18),
+    [17] = QSPI_LUT_SEQ(QSPI_WRITE, QSPI_PAD_1, 0x80, 0, 0, 0),
+
+    /* Seq5: Write Register */
+    /* CMD:    0x01 - Write Status Register, single pad */
+    /* WRITE:  0x01 - Write 1 byte of data, single pad */
+    [20] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x01, QSPI_WRITE, QSPI_PAD_1, 
0x1),
+
+    /* Seq6: Read Config Register */
+    /* CMD:  0x15 - Read Config register, single pad */
+    /* READ: 0x01 - Read 1 byte */
+    [24] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x15, QSPI_READ, QSPI_PAD_1, 
0x1),
+
+    /* Seq7: Erase Sector */
+    /* CMD:  0x20 - Sector Erase, single pad */
+    /* ADDR: 0x18 - 24 bit address, single pad */
+    [28] = QSPI_LUT_SEQ(QSPI_CMD, QSPI_PAD_1, 0x20, QSPI_ADDR, QSPI_PAD_1, 
0x18),
+
+    /* Match MISRA rule */
+    [63] = 0};
+
+qspi_flash_config_t g_qspi_flash_cfg = {
+    .flashA1Size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) / 2,
+    .flashA2Size = 0,
+#if (FSL_FEATURE_QSPI_SUPPORT_PARALLEL_MODE)
+    .flashB1Size = MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) * 
MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) / 2,
+    .flashB2Size = 0,
+#endif
+#if (!FSL_FEATURE_QSPI_HAS_NO_TDH)
+    .dataHoldTime = 0,
+#endif
+    .CSHoldTime = 0,
+    .CSSetupTime = 0,
+    .cloumnspace = 0,
+    .dataLearnValue = 0,
+    .endian = kQSPI_64LittleEndian,
+    .enableWordAddress = false
+};
+
+static void
+check_if_finished(void)
+{
+    uint32_t val = 0;
+    /* Check WIP bit */
+    do
+    {
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        QSPI_ClearFifo(QuadSPI0, kQSPI_RxFifo);
+        QSPI_ExecuteIPCommand(QuadSPI0, 12U);
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        val = QuadSPI0->RBDR[0];
+        /* Clear ARDB area */
+        QSPI_ClearErrorFlag(QuadSPI0, kQSPI_RxBufferDrain);
+    } while (val & 0x1);
+}
+
+static void
+cmd_write_enable()
+{
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ExecuteIPCommand(QuadSPI0, 4U);
+}
+
+static void
+read_page(uint32_t address, uint32_t* dst)
+{
+    int i;
+    for (i = 0; i < MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) / 4; i++)
+    {
+        dst[i] = ((uint32_t*)address)[i];
+    }
+}
+
+static int
+nxp_qspi_read(const struct hal_flash *dev,
+              uint32_t address,
+              void *dst,
+              uint32_t num_bytes)
+{
+    uint32_t npages;
+    if ((address % dev->hf_align) != 0) {
+        return OS_EINVAL;
+    }
+    if ((num_bytes % MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE)) != 0) {
+        return OS_EINVAL;
+    }
+
+    npages = num_bytes / MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    while (npages) {
+        read_page(address,  dst);
+        npages--;
+        address += MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    }
+    return 0;
+}
+
+static void
+write_page(uint32_t dest_addr, uint32_t *src_addr)
+{
+    uint32_t leftLongWords = 0;
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+
+    QSPI_SetIPCommandAddress(QuadSPI0, dest_addr);
+    cmd_write_enable();
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+
+    /* First write some data into TXFIFO to prevent from underrun */
+    QSPI_WriteBlocking(QuadSPI0, src_addr, FSL_FEATURE_QSPI_TXFIFO_DEPTH * 4);
+    src_addr += FSL_FEATURE_QSPI_TXFIFO_DEPTH;
+
+    /* Start the program */
+    QSPI_SetIPCommandSize(QuadSPI0, MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE));
+    QSPI_ExecuteIPCommand(QuadSPI0, 16U);
+
+    leftLongWords = MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE) - 16 * sizeof(uint32_t);
+    QSPI_WriteBlocking(QuadSPI0, src_addr, leftLongWords);
+
+    /* Wait until flash finished program */
+    check_if_finished();
+    while (QSPI_GetStatusFlags(QuadSPI0) & (kQSPI_Busy | kQSPI_IPAccess))
+    {
+    }
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) && 
(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+    QSPI_ClearCache(QuadSPI0);
+#endif
+}
+
+static int
+nxp_qspi_write(const struct hal_flash *dev,
+               uint32_t address,
+               const void *src,
+               uint32_t num_bytes)
+{
+    uint32_t npages;
+    if ((address % dev->hf_align) != 0) {
+        return OS_EINVAL;
+    }
+    if ((num_bytes % MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE)) != 0) {
+        return OS_EINVAL;
+    }
+
+    npages = num_bytes / MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    while (npages) {
+        write_page(address, (uint32_t*) src);
+        npages--;
+        address += MYNEWT_VAL(QSPI_FLASH_PAGE_SIZE);
+    }
+    return 0;
+}
+
+static int
+nxp_qspi_erase_sector(const struct hal_flash *dev,
+                         uint32_t sector_address)
+{
+    sector_address = sector_address / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    sector_address *= MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }
+    QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+    QSPI_SetIPCommandAddress(QuadSPI0, sector_address);
+    cmd_write_enable();
+    QSPI_ExecuteIPCommand(QuadSPI0, 28U);
+    check_if_finished();
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) && 
(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+    QSPI_ClearCache(QuadSPI0);
+#endif
+    return 0;
+}
+
+static int
+nxp_qspi_erase(const struct hal_flash *dev,
+               uint32_t address,
+               uint32_t size)
+{
+    uint32_t nsects;
+
+    address = address / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    address *= MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    nsects = size / MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    nsects += size % MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    while (nsects) {
+        while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+        {
+        }
+        QSPI_ClearFifo(QuadSPI0, kQSPI_TxFifo);
+        QSPI_SetIPCommandAddress(QuadSPI0, address);
+        cmd_write_enable();
+        QSPI_ExecuteIPCommand(QuadSPI0, 28U);
+        check_if_finished();
+
+#if defined(FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC) &&  \
+    (FSL_FEATURE_QSPI_SOCCR_HAS_CLR_LPCAC)
+        QSPI_ClearCache(QuadSPI0);
+#endif
+        nsects--;
+        address += MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    }
+    return 0;
+}
+
+static int
+nxp_qspi_sector_info(const struct hal_flash *dev,
+                     int idx,
+                     uint32_t *address,
+                     uint32_t *sz)
+{
+    *address = idx * MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+    *sz = MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE);
+
+    return 0;
+}
+
+/* Enable Quad mode */
+static void
+enable_quad_mode(void)
+{
+    uint32_t val[4] = {0x40U, 0, 0, 0};
+
+    while (QSPI_GetStatusFlags(QuadSPI0) & kQSPI_Busy)
+    {
+    }

Review comment:
       Addressed.

##########
File path: hw/mcu/nxp/kinetis/src/hal_qspi.c
##########
@@ -0,0 +1,410 @@
+/*
+ * 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.
+ */
+
+#include <string.h>
+#include <assert.h>
+#include <stdint.h>
+#include "os/mynewt.h"
+#if MYNEWT_VAL(QSPI_ENABLE)
+#include <mcu/cmsis_nvic.h>
+#include <hal/hal_flash_int.h>
+
+#include <fsl_port.h>
+#include <fsl_qspi.h>
+#include <fsl_clock.h>
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_SIZE) < 1
+#error QSPI_FLASH_SECTOR_SIZE must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+#if MYNEWT_VAL(QSPI_FLASH_SECTOR_COUNT) < 1
+#error QSPI_FLASH_SECTOR_COUNT must be set to the correct value in bsp 
syscfg.yml
+#endif
+
+/* #if MYNEWT_VAL(QSPI_PIN_CS) < 0 */
+/* #error QSPI_PIN_CS must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_SCK) < 0 */
+/* #error QSPI_PIN_SCK must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO0) < 0 */
+/* #error QSPI_PIN_DIO0 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO1) < 0 */
+/* #error QSPI_PIN_DIO1 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO2) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO2 must be set to the correct value in bsp syscfg.yml */
+/* #endif */
+
+/* #if MYNEWT_VAL(QSPI_PIN_DIO3) < 0 && (MYNEWT_VAL(QSPI_READOC) > 2 || 
MYNEWT_VAL(QSPI_WRITEOC) > 1) */
+/* #error QSPI_PIN_DIO3 must be set to the correct value in bsp syscfg.yml */
+/* #endif */

Review comment:
       Addressed.




----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


Reply via email to