pinebuds/platform/drivers/norflash/norflash_en25s80b.c

/***************************************************************************
 *
 * Copyright 2015-2019 BES.
 * All rights reserved. All unpublished rights reserved.
 *
 * No part of this work may be used or reproduced in any form or by any
 * means, or stored in a database or retrieval system, without prior written
 * permission of BES.
 *
 * Use of this work is governed by a license granted by BES.
 * This work contains confidential and proprietary information of
 * BES. which is protected by copyright, trade secret,
 * trademark and other intellectual property rights.
 *
 ****************************************************************************/
#include "norflash_en25s80b.h"
#include "hal_norflaship.h"
#include "hal_timer.h"
#include "hal_trace.h"
#include "norflash_drv.h"
#include "plat_types.h"

static void POSSIBLY_UNUSED en25s80b_en25s80b_reset(void) {
  // ip quad mode
  norflaship_quad_mode(1);
  norflaship_busy_wait();

  hal_sys_timer_delay(20);

  // quad reset enable
  norflaship_clear_txfifo();
  norflaship_cmd_addr(EN25S80B_CMD_QUAD_RESET_ENABLE, 0);
  norflaship_busy_wait();

  hal_sys_timer_delay(20);

  // quad reset
  norflaship_clear_txfifo();
  norflaship_cmd_addr(EN25S80B_CMD_QUAD_RESET, 0);
  norflaship_busy_wait();

  hal_sys_timer_delay(20);

  // ip spi mode
  norflaship_quad_mode(0);
  norflaship_hold_pin(0);
  norflaship_wpr_pin(0);
  norflaship_busy_wait();

  hal_sys_timer_delay(20);

  // reset enable
  norflaship_clear_txfifo();
  norflaship_cmd_addr(EN25S80B_CMD_SPI_RESET_ENABLE, 0);
  norflaship_busy_wait();

  hal_sys_timer_delay(20);

  // reset
  norflaship_clear_txfifo();
  norflaship_cmd_addr(EN25S80B_CMD_SPI_RESET, 0);
  norflaship_busy_wait();

  hal_sys_timer_delay(20);
}

static void en25s80b_enter_OTP(void) {
  norflaship_clear_txfifo();
  norflaship_cmd_addr(EN25S80B_CMD_ENTER_OTP, 0);
  norflash_status_WIP_1_wait(0);
}

static void en25s80b_exit_OTP(void) {
  norflaship_clear_txfifo();
  norflaship_cmd_addr(EN25S80B_CMD_EXIT_OTP, 0);
  norflash_status_WIP_1_wait(0);
}

static void en25s80b_write_status_s0_s7(uint8_t status) {
  norflash_write_reg(EN25S80B_CMD_WRITE_STATUS, &status, 1);
}

static int en25s80b_write_status(enum DRV_NORFLASH_W_STATUS_T type,
                                 uint32_t param) {
  uint8_t status;

  if (type == DRV_NORFLASH_W_STATUS_QE) {
    en25s80b_enter_OTP();

    status = norflash_read_status_s0_s7();

    if (param) {
      status |= (EN25S80B_WHDIS_BIT_MASK);
    } else {
      status &= ~(EN25S80B_WHDIS_BIT_MASK);
    }

    en25s80b_write_status_s0_s7(status);

    en25s80b_exit_OTP();

    return 0;
  }

  return 1;
}

const struct NORFLASH_CFG_T en25s80b_cfg = {
    .id =
        {
            0x1C,
            0x38,
            0x14,
        },
    .speed_ratio =
        {
            .s =
                {
                    .std_read = SPEED_RATIO_6_EIGHTH,
                    .others = SPEED_RATIO_6_EIGHTH,
                },
        },
    .crm_en_bits = 0xA5,
    .crm_dis_bits = 0xAA,
    .sec_reg_cfg =
        {
            .s =
                {
                    .enabled = false,
                },
        },
    .page_size = EN25S80B_PAGE_SIZE,
    .sector_size = EN25S80B_SECTOR_SIZE,
    .block_size = EN25S80B_BLOCK_SIZE,
    .total_size = EN25S80B_TOTAL_SIZE,
    .max_speed = 104 * 1000 * 1000,
    .mode = (HAL_NORFLASH_OP_MODE_STAND_SPI | HAL_NORFLASH_OP_MODE_FAST_SPI |
             HAL_NORFLASH_OP_MODE_DUAL_OUTPUT | HAL_NORFLASH_OP_MODE_DUAL_IO |
             HAL_NORFLASH_OP_MODE_QUAD_OUTPUT | HAL_NORFLASH_OP_MODE_QUAD_IO |
             HAL_NORFLASH_OP_MODE_PAGE_PROGRAM |
             HAL_NORFLASH_OP_MODE_QUAD_PAGE_PROGRAM |
             HAL_NORFLASH_OP_MODE_ERASE_IN_STD),
    .write_status = en25s80b_write_status,
};