//! FlexSPI configuration block (FCB) for the iMXRT1010EVK.
//!
//! This FCB is compatible with the Adesto QuadSPI flash storage found on the
//! iMXRT1010EVK.
#![no_std]

pub use nor::ConfigurationBlock;

use imxrt_boot_gen::flexspi::{self, opcodes::sdr::*, *};
use imxrt_boot_gen::serial_flash::*;

const DENSITY_BITS: u32 = 128 * 1024 * 1024;
const DENSITY_BYTES: u32 = DENSITY_BITS / 8;

const SEQ_READ: Sequence = SequenceBuilder::new()
    .instr(Instr::new(CMD, Pads::One, 0xEB))
    .instr(Instr::new(RADDR, Pads::Four, 0x18))
    .instr(Instr::new(DUMMY, Pads::Four, 0x06))
    .instr(Instr::new(READ, Pads::Four, 0x04))
    .build();
const SEQ_READ_STATUS: Sequence = SequenceBuilder::new()
    .instr(Instr::new(CMD, Pads::One, 0x05))
    .instr(Instr::new(READ, Pads::One, 0x04))
    .build();
const SEQ_WRITE_ENABLE: Sequence = SequenceBuilder::new()
    .instr(Instr::new(CMD, Pads::One, 0x06))
    .build();
const SEQ_ERASE_SECTOR: Sequence = SequenceBuilder::new()
    .instr(Instr::new(CMD, Pads::One, 0x20))
    .instr(Instr::new(RADDR, Pads::One, 0x18))
    .build();
const SEQ_PAGE_PROGRAM: Sequence = SequenceBuilder::new()
    .instr(Instr::new(CMD, Pads::One, 0x02))
    .instr(Instr::new(RADDR, Pads::One, 0x18))
    .instr(Instr::new(WRITE, Pads::One, 0x04))
    .build();
const SEQ_CHIP_ERASE: Sequence = SequenceBuilder::new()
    .instr(Instr::new(CMD, Pads::One, 0x60))
    .build();

const LUT: LookupTable = LookupTable::new()
    .command(Command::Read, SEQ_READ)
    .command(Command::ReadStatus, SEQ_READ_STATUS)
    .command(Command::WriteEnable, SEQ_WRITE_ENABLE)
    .command(Command::EraseSector, SEQ_ERASE_SECTOR)
    .command(Command::PageProgram, SEQ_PAGE_PROGRAM)
    .command(Command::ChipErase, SEQ_CHIP_ERASE);

const COMMON_CONFIGURATION_BLOCK: flexspi::ConfigurationBlock =
    flexspi::ConfigurationBlock::new(LUT)
        .read_sample_clk_src(ReadSampleClockSource::LoopbackFromDQSPad)
        .cs_hold_time(0x03)
        .cs_setup_time(0x03)
        .column_address_width(ColumnAddressWidth::OtherDevices)
        .device_mode_configuration(DeviceModeConfiguration::Disabled)
        .wait_time_cfg_commands(WaitTimeConfigurationCommands::disable())
        .flash_size(SerialFlashRegion::A1, DENSITY_BYTES)
        .serial_clk_freq(SerialClockFrequency::MHz120)
        .serial_flash_pad_type(FlashPadType::Quad);

pub const SERIAL_NOR_CONFIGURATION_BLOCK: nor::ConfigurationBlock =
    nor::ConfigurationBlock::new(COMMON_CONFIGURATION_BLOCK)
        .page_size(256)
        .sector_size(4096)
        .ip_cmd_serial_clk_freq(nor::SerialClockFrequency::MHz30);

#[no_mangle]
#[cfg_attr(all(target_arch = "arm", target_os = "none"), link_section = ".fcb")]
pub static FLEXSPI_CONFIGURATION_BLOCK: nor::ConfigurationBlock = SERIAL_NOR_CONFIGURATION_BLOCK;