zynq-rs/libboard_zynq/src/flash/regs.rs

127 lines
3.9 KiB
Rust

use volatile_register::{RO, WO, RW};
use libregister::{register, register_bit, register_bits};
#[repr(C)]
pub struct RegisterBlock {
pub config: Config,
pub intr_status: IntrStatus,
pub intr_en: IntrEn,
pub intr_dis: IntrDis,
pub intr_mask: RO<u32>,
pub enable: Enable,
pub delay: RW<u32>,
pub txd0: WO<u32>,
pub rx_data: RO<u32>,
pub slave_idle_count: RW<u32>,
pub tx_thres: RW<u32>,
pub rx_thres: RW<u32>,
pub gpio: QspiGpio,
pub _unused1: RO<u32>,
pub lpbk_dly_adj: RW<u32>,
pub _unused2: [RO<u32>; 17],
pub txd1: WO<u32>,
pub txd2: WO<u32>,
pub txd3: WO<u32>,
pub _unused3: [RO<u32>; 5],
pub lqspi_cfg: LqspiCfg,
pub lqspi_sts: RW<u32>,
pub _unused4: [RO<u32>; 21],
pub mod_id: RW<u32>,
}
impl RegisterBlock {
const BASE_ADDRESS: *mut Self = 0xE000D000 as *mut _;
pub fn qspi() -> &'static mut Self {
unsafe { &mut *Self::BASE_ADDRESS }
}
}
register!(config, Config, RW, u32);
register_bit!(config,
/// Enables master mode
mode_sel, 0);
register_bit!(config,
/// Clock polarity low/high
clk_pol, 1);
register_bit!(config,
/// Clock phase
clk_ph, 2);
register_bits!(config,
/// divider = 2 ** (1 + baud_rate_div)
baud_rate_div, u8, 3, 5);
register_bits!(config,
/// Must be set to 0b11
fifo_width, u8, 6, 7);
register_bit!(config,
/// Must be 0
ref_clk, 8);
register_bit!(config,
/// Peripheral Chip Select Line
pcs, 10);
register_bit!(config,
/// false: auto mode, true: manual CS mode
manual_cs, 14);
register_bit!(config,
/// false: auto mode, true: enables manual start enable
man_start_en, 15);
register_bit!(config,
/// false: auto mode, true: enables manual start command
man_start_com, 16);
register_bit!(config, holdb_dr, 19);
register_bit!(config,
/// false: little, true: endian
endian, 26);
register_bit!(config,
/// false: legacy SPI mode, true: Flash memory interface mode
leg_flsh, 31);
register!(intr_status, IntrStatus, RW, u32);
register_bit!(intr_status, rx_overflow, 0);
register_bit!(intr_status,
/// < tx_thres
tx_fifo_not_full, 2);
register_bit!(intr_status, tx_fifo_full, 3);
register_bit!(intr_status,
/// >= rx_thres
rx_fifo_not_empty, 4);
register_bit!(intr_status, rx_fifo_full, 5);
register_bit!(intr_status, tx_fifo_underflow, 6);
register!(intr_en, IntrEn, WO, u32);
register_bit!(intr_en, rx_overflow, 0);
register_bit!(intr_en, tx_fifo_not_full, 2);
register_bit!(intr_en, tx_fifo_full, 3);
register_bit!(intr_en, rx_fifo_not_empty, 4);
register_bit!(intr_en, rx_fifo_full, 5);
register_bit!(intr_en, tx_fifo_underflow, 6);
register!(intr_dis, IntrDis, WO, u32);
register_bit!(intr_dis, rx_overflow, 0);
register_bit!(intr_dis, tx_fifo_not_full, 2);
register_bit!(intr_dis, tx_fifo_full, 3);
register_bit!(intr_dis, rx_fifo_not_empty, 4);
register_bit!(intr_dis, rx_fifo_full, 5);
register_bit!(intr_dis, tx_fifo_underflow, 6);
register!(enable, Enable, RW, u32);
register_bit!(enable, spi_en, 0);
// named to avoid confusion with normal gpio
register!(qspi_gpio, QspiGpio, RW, u32);
register_bit!(qspi_gpio,
/// Write protect pin (inverted)
wp_n, 0);
register!(lqspi_cfg, LqspiCfg, RW, u32);
register_bits!(lqspi_cfg, inst_code, u8, 0, 7);
register_bits!(lqspi_cfg, dummy_mask, u8, 8, 10);
register_bits!(lqspi_cfg, mode_bits, u8, 16, 23);
register_bit!(lqspi_cfg, mode_on, 24);
register_bit!(lqspi_cfg, mode_en, 25);
register_bit!(lqspi_cfg, u_page, 28);
register_bit!(lqspi_cfg, sep_bus, 29);
register_bit!(lqspi_cfg, two_mem, 30);
register_bit!(lqspi_cfg, lq_mode, 31);