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slcr: abstract with RegisterBlock

This commit is contained in:
Astro 2019-05-23 17:52:06 +02:00
parent fd7fd0db14
commit 62ca26fa71
2 changed files with 251 additions and 36 deletions

View File

@ -1,5 +1,6 @@
#[allow(unused)]
///! Register definitions for System Level Control
use volatile_register::{RO, WO, RW};
use crate::{register, register_bit, register_bits, register_at, regs::RegisterW, regs::RegisterRW};
pub enum PllSource {
@ -8,45 +9,228 @@ pub enum PllSource {
DdrPll = 0b11,
}
pub fn with_slcr<F: FnMut() -> R, R>(mut f: F) -> R {
unsafe { SlcrUnlock::new() }.unlock();
let r = f();
unsafe { SlcrLock::new() }.lock();
r
#[repr(C)]
pub struct RegisterBlock {
pub scl: RW<u32>,
pub slcr_lock: SlcrLock,
pub slcr_unlock: SlcrUnlock,
pub slcr_locksta: RO<u32>,
reserved0: [u32; 60],
pub arm_pll_ctrl: RW<u32>,
pub ddr_pll_ctrl: RW<u32>,
pub io_pll_ctrl: RW<u32>,
pub pll_status: RO<u32>,
pub arm_pll_cfg: RW<u32>,
pub ddr_pll_cfg: RW<u32>,
pub io_pll_cfg: RW<u32>,
reserved1: [u32; 1],
pub arm_clk_ctrl: RW<u32>,
pub ddr_clk_ctrl: RW<u32>,
pub dci_clk_ctrl: RW<u32>,
pub aper_clk_ctrl: AperClkCtrl,
pub usb0_clk_ctrl: RW<u32>,
pub usb1_clk_ctrl: RW<u32>,
pub gem0_rclk_ctrl: RW<u32>,
pub gem1_rclk_ctrl: RW<u32>,
pub gem0_clk_ctrl: RW<u32>,
pub gem1_clk_ctrl: RW<u32>,
pub smc_clk_ctrl: RW<u32>,
pub lqspi_clk_ctrl: RW<u32>,
pub sdio_clk_ctrl: RW<u32>,
pub uart_clk_ctrl: UartClkCtrl,
pub spi_clk_ctrl: RW<u32>,
pub can_clk_ctrl: RW<u32>,
pub can_mioclk_ctrl: RW<u32>,
pub dbg_clk_ctrl: RW<u32>,
pub pcap_clk_ctrl: RW<u32>,
pub topsw_clk_ctrl: RW<u32>,
pub fpga0_clk_ctrl: RW<u32>,
pub fpga0_thr_ctrl: RW<u32>,
pub fpga0_thr_cnt: RW<u32>,
pub fpga0_thr_sta: RO<u32>,
pub fpga1_clk_ctrl: RW<u32>,
pub fpga1_thr_ctrl: RW<u32>,
pub fpga1_thr_cnt: RW<u32>,
pub fpga1_thr_sta: RO<u32>,
pub fpga2_clk_ctrl: RW<u32>,
pub fpga2_thr_ctrl: RW<u32>,
pub fpga2_thr_cnt: RW<u32>,
pub fpga2_thr_sta: RO<u32>,
pub fpga3_clk_ctrl: RW<u32>,
pub fpga3_thr_ctrl: RW<u32>,
pub fpga3_thr_cnt: RW<u32>,
pub fpga3_thr_sta: RO<u32>,
reserved2: [u32; 5],
pub clk_621_true: RW<u32>,
reserved3: [u32; 14],
pub pss_rst_ctrl: RW<u32>,
pub ddr_rst_ctrl: RW<u32>,
pub topsw_rst_ctrl: RW<u32>,
pub dmac_rst_ctrl: RW<u32>,
pub usb_rst_ctrl: RW<u32>,
pub gem_rst_ctrl: RW<u32>,
pub sdio_rst_ctrl: RW<u32>,
pub spi_rst_ctrl: RW<u32>,
pub can_rst_ctrl: RW<u32>,
pub i2c_rst_ctrl: RW<u32>,
pub uart_rst_ctrl: UartRstCtrl,
pub gpio_rst_ctrl: RW<u32>,
pub lqspi_rst_ctrl: RW<u32>,
pub smc_rst_ctrl: RW<u32>,
pub ocm_rst_ctrl: RW<u32>,
reserved4: [u32; 1],
pub fpga_rst_ctrl: RW<u32>,
pub a9_cpu_rst_ctrl: RW<u32>,
reserved5: [u32; 1],
pub rs_awdt_ctrl: RW<u32>,
reserved6: [u32; 2],
pub reboot_status: RW<u32>,
pub boot_mode: RW<u32>,
reserved7: [u32; 40],
pub apu_ctrl: RW<u32>,
pub wdt_clk_sel: RW<u32>,
reserved8: [u32; 78],
pub tz_dma_ns: RW<u32>,
pub tz_dma_irq_ns: RW<u32>,
pub tz_dma_periph_ns: RW<u32>,
reserved9: [u32; 57],
pub pss_idcode: RW<u32>,
reserved10: [u32; 51],
pub ddr_urgent: RW<u32>,
reserved11: [u32; 2],
pub ddr_cal_start: RW<u32>,
reserved12: [u32; 1],
pub ddr_ref_start: RW<u32>,
pub ddr_cmd_sta: RW<u32>,
pub ddr_urgent_sel: RW<u32>,
pub ddr_dfi_status: RW<u32>,
reserved13: [u32; 55],
pub mio_pin_00: RW<u32>,
pub mio_pin_01: RW<u32>,
pub mio_pin_02: RW<u32>,
pub mio_pin_03: RW<u32>,
pub mio_pin_04: RW<u32>,
pub mio_pin_05: RW<u32>,
pub mio_pin_06: RW<u32>,
pub mio_pin_07: RW<u32>,
pub mio_pin_08: RW<u32>,
pub mio_pin_09: RW<u32>,
pub mio_pin_10: RW<u32>,
pub mio_pin_11: RW<u32>,
pub mio_pin_12: RW<u32>,
pub mio_pin_13: RW<u32>,
pub mio_pin_14: RW<u32>,
pub mio_pin_15: RW<u32>,
pub mio_pin_16: RW<u32>,
pub mio_pin_17: RW<u32>,
pub mio_pin_18: RW<u32>,
pub mio_pin_19: RW<u32>,
pub mio_pin_20: RW<u32>,
pub mio_pin_21: RW<u32>,
pub mio_pin_22: RW<u32>,
pub mio_pin_23: RW<u32>,
pub mio_pin_24: RW<u32>,
pub mio_pin_25: RW<u32>,
pub mio_pin_26: RW<u32>,
pub mio_pin_27: RW<u32>,
pub mio_pin_28: RW<u32>,
pub mio_pin_29: RW<u32>,
pub mio_pin_30: RW<u32>,
pub mio_pin_31: RW<u32>,
pub mio_pin_32: RW<u32>,
pub mio_pin_33: RW<u32>,
pub mio_pin_34: RW<u32>,
pub mio_pin_35: RW<u32>,
pub mio_pin_36: RW<u32>,
pub mio_pin_37: RW<u32>,
pub mio_pin_38: RW<u32>,
pub mio_pin_39: RW<u32>,
pub mio_pin_40: RW<u32>,
pub mio_pin_41: RW<u32>,
pub mio_pin_42: RW<u32>,
pub mio_pin_43: RW<u32>,
pub mio_pin_44: RW<u32>,
pub mio_pin_45: RW<u32>,
pub mio_pin_46: RW<u32>,
pub mio_pin_47: RW<u32>,
pub mio_pin_48: MioPin48,
pub mio_pin_49: MioPin49,
pub mio_pin_50: RW<u32>,
pub mio_pin_51: RW<u32>,
pub mio_pin_52: RW<u32>,
pub mio_pin_53: RW<u32>,
reserved14: [u32; 11],
pub mio_loopback: RW<u32>,
reserved15: [u32; 1],
pub mio_mst_tri0: RW<u32>,
pub mio_mst_tri1: RW<u32>,
reserved16: [u32; 7],
pub sd0_wp_cd_sel: RW<u32>,
pub sd1_wp_cd_sel: RW<u32>,
reserved17: [u32; 50],
pub lvl_shftr_en: RW<u32>,
reserved18: [u32; 3],
pub ocm_cfg: RW<u32>,
reserved19: [u32; 123],
pub gpiob_ctrl: RW<u32>,
pub gpiob_cfg_cmos18: RW<u32>,
pub gpiob_cfg_cmos25: RW<u32>,
pub gpiob_cfg_cmos33: RW<u32>,
reserved20: [u32; 1],
pub gpiob_cfg_hstl: RW<u32>,
pub gpiob_drvr_bias_ctrl: RW<u32>,
reserved21: [u32; 9],
pub ddriob_addr1: RW<u32>,
pub ddriob_data0: RW<u32>,
pub ddriob_data1: RW<u32>,
pub ddriob_diff0: RW<u32>,
pub ddriob_diff1: RW<u32>,
pub ddriob_clock: RW<u32>,
pub w_addr: RW<u32>,
pub w_data: RW<u32>,
pub w_diff: RW<u32>,
pub w_clock: RW<u32>,
pub ddriob_ddr_ctrl: RW<u32>,
pub ddriob_dci_ctrl: RW<u32>,
pub ddriob_dci_status: RW<u32>,
}
register_at!(RegisterBlock, 0xF8000000, new);
impl RegisterBlock {
pub fn unlocked<F: FnMut(&Self) -> R, R>(mut f: F) -> R {
let self_ = Self::new();
self_.slcr_unlock.unlock();
let r = f(&self_);
self_.slcr_lock.lock();
r
}
}
register!(slcr_lock, SlcrLock, WO, u32);
register_bits!(slcr_lock, lock_key, u16, 0, 15);
register_at!(SlcrLock, 0xF8000004, new);
impl SlcrLock {
pub fn lock(&self) {
unsafe {
self.write(
Self::zeroed()
.lock_key(0x767B)
);
}
self.write(
Self::zeroed()
.lock_key(0x767B)
);
}
}
register!(slcr_unlock, SlcrUnlock, WO, u32);
register_bits!(slcr_unlock, unlock_key, u16, 0, 15);
register_at!(SlcrUnlock, 0xF8000008, new);
impl SlcrUnlock {
pub fn unlock(&self) {
unsafe {
self.write(
Self::zeroed()
.unlock_key(0xDF0D)
);
}
self.write(
Self::zeroed()
.unlock_key(0xDF0D)
);
}
}
register!(aper_clk_ctrl, AperClkCtrl, RW, u32);
register_bit!(aper_clk_ctrl, uart1_cpu_1xclkact, 21);
register_bit!(aper_clk_ctrl, uart0_cpu_1xclkact, 20);
register_at!(AperClkCtrl, 0xF800012C, new);
impl AperClkCtrl {
pub fn enable_uart0(&self) {
self.modify(|_, w| w.uart0_cpu_1xclkact(true));
@ -117,3 +301,29 @@ impl UartRstCtrl {
);
}
}
/// Used for MioPin*.io_type
pub enum IoBufferType {
Lvcmos18 = 0b001,
Lvcmos25 = 0b010,
Lvcmos33 = 0b011,
Hstl = 0b100,
}
macro_rules! mio_pin_register {
($mod_name: ident, $struct_name: ident) => (
register!($mod_name, $struct_name, RW, u32);
register_bit!($mod_name, disable_rcvr, 13);
register_bit!($mod_name, pullup, 12);
register_bits!($mod_name, io_type, u8, 9, 11);
register_bit!($mod_name, speed, 8);
register_bits!($mod_name, l3_sel, u8, 5, 7);
register_bits!($mod_name, l2_sel, u8, 3, 4);
register_bit!($mod_name, l1_sel, 2);
register_bit!($mod_name, l0_sel, 1);
register_bit!($mod_name, tri_enable, 0);
);
}
mio_pin_register!(mio_pin_48, MioPin48);
mio_pin_register!(mio_pin_49, MioPin49);

View File

@ -4,6 +4,7 @@ use core::fmt;
use volatile_register::RW;
use crate::regs::*;
use crate::slcr;
mod regs;
mod baud_rate_gen;
@ -18,24 +19,28 @@ pub struct Uart {
impl Uart {
pub fn uart1(baudrate: u32) -> Self {
super::slcr::with_slcr(|| {
let uart_rst_ctrl = super::slcr::UartRstCtrl::new();
uart_rst_ctrl.reset_uart1();
slcr::RegisterBlock::unlocked(|slcr| {
slcr.uart_rst_ctrl.reset_uart1();
// Route UART 1 RxD/TxD Signals to MIO Pins
unsafe {
// TX pin
let mio_pin_48 = &*(0xF80007C0 as *const RW<u32>);
mio_pin_48.write(0x0000_12E0);
// RX pin
let mio_pin_49 = &*(0xF80007C4 as *const RW<u32>);
mio_pin_49.write(0x0000_12E1);
}
// TX pin
slcr.mio_pin_48.write(
slcr::MioPin48::zeroed()
.l3_sel(0b111)
.io_type(0b001)
.pullup(true)
);
// RX pin
slcr.mio_pin_49.write(
slcr::MioPin49::zeroed()
.tri_enable(true)
.l3_sel(0b111)
.io_type(0b001)
.pullup(true)
);
let aper_clk_ctrl = super::slcr::AperClkCtrl::new();
aper_clk_ctrl.enable_uart1();
let uart_clk_ctrl = super::slcr::UartClkCtrl::new();
uart_clk_ctrl.enable_uart1();
slcr.aper_clk_ctrl.enable_uart1();
slcr.uart_clk_ctrl.enable_uart1();
});
let self_ = Uart {
regs: regs::RegisterBlock::uart1(),