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zynq-rs
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add Red Pitaya support (WIP)

This commit is contained in:
Sebastien Bourdeauducq 2020-09-09 20:10:05 +08:00
parent c634313d5e
commit a6955edf14
12 changed files with 109 additions and 3 deletions
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1
experiments/Cargo.toml
View File

@ -8,6 +8,7 @@ edition = "2018"
[features]
target_zc706 = ["libboard_zynq/target_zc706", "libsupport_zynq/target_zc706"]
target_cora_z7_10 = ["libboard_zynq/target_cora_z7_10", "libsupport_zynq/target_cora_z7_10"]
target_redpitaya = ["libboard_zynq/target_redpitaya", "libsupport_zynq/target_redpitaya"]
default = ["target_zc706"]
[dependencies]

7
experiments/src/main.rs
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@ -109,6 +109,8 @@ pub fn main_core0() {
const CPU_FREQ: u32 = 800_000_000;
#[cfg(feature = "target_cora_z7_10")]
const CPU_FREQ: u32 = 650_000_000;
#[cfg(feature = "target_redpitaya")]
const CPU_FREQ: u32 = 800_000_000;
info!("Setup clock sources...");
ArmPll::setup(2 * CPU_FREQ);
@ -123,6 +125,11 @@ pub fn main_core0() {
IoPll::setup(1_000_000_000);
libboard_zynq::stdio::drop_uart();
}
#[cfg(feature = "target_redpitaya")]
{
IoPll::setup(1_000_000_000);
libboard_zynq::stdio::drop_uart();
}
info!("PLLs set up");
let clocks = zynq::clocks::Clocks::get();
info!(

1
libboard_zynq/Cargo.toml
View File

@ -8,6 +8,7 @@ edition = "2018"
[features]
target_zc706 = []
target_cora_z7_10 = []
target_redpitaya = []
ipv6 = [ "smoltcp/proto-ipv6" ]
[dependencies]

2
libboard_zynq/src/clocks/source.rs
View File

@ -6,6 +6,8 @@ use super::slcr;
pub const PS_CLK: u32 = 33_333_333;
#[cfg(feature = "target_cora_z7_10")]
pub const PS_CLK: u32 = 50_000_000;
#[cfg(feature = "target_redpitaya")]
pub const PS_CLK: u32 = 33_333_333;
/// (pll_fdiv_max, (pll_cp, pll_res, lock_cnt))
const PLL_FDIV_LOCK_PARAM: &[(u16, (u8, u8, u16))] = &[

33
libboard_zynq/src/ddr/mod.rs
View File

@ -14,6 +14,10 @@ const DDR_FREQ: u32 = 666_666_666;
/// Micron MT41K256M16HA-125: 800 MHz DDR3L, max supported 533 MHz
const DDR_FREQ: u32 = 525_000_000;
#[cfg(feature = "target_redpitaya")]
/// Alliance Memory AS4C256M16D3B: 800 MHz DDR3
const DDR_FREQ: u32 = 800_000_000;
/// MT41K256M16HA-125
const DCI_FREQ: u32 = 10_000_000;
@ -147,6 +151,15 @@ impl DdrRam {
.dci_type(slcr::DdriobDciType::Termination)
.output_en(slcr::DdriobOutputEn::Obuf);
#[cfg(feature = "target_cora_z7_10")]
let data1_config = slcr::DdriobConfig::zeroed()
.pullup_en(true);
#[cfg(feature = "target_redpitaya")]
let data0_config = slcr::DdriobConfig::zeroed()
.inp_type(slcr::DdriobInputType::VrefDifferential)
.term_en(true)
.dci_type(slcr::DdriobDciType::Termination)
.output_en(slcr::DdriobOutputEn::Obuf);
#[cfg(feature = "target_redpitaya")]
let data1_config = slcr::DdriobConfig::zeroed()
.pullup_en(true);
slcr.ddriob_data0.write(data0_config);
@ -169,7 +182,15 @@ impl DdrRam {
#[cfg(feature = "target_cora_z7_10")]
let diff1_config = slcr::DdriobConfig::zeroed()
.pullup_en(true);
#[cfg(feature = "target_redpitaya")]
let diff0_config = slcr::DdriobConfig::zeroed()
.inp_type(slcr::DdriobInputType::Differential)
.term_en(true)
.dci_type(slcr::DdriobDciType::Termination)
.output_en(slcr::DdriobOutputEn::Obuf);
#[cfg(feature = "target_redpitaya")]
let diff1_config = slcr::DdriobConfig::zeroed()
.pullup_en(true);
slcr.ddriob_diff0.write(diff0_config);
slcr.ddriob_diff1.write(diff1_config);
@ -200,6 +221,12 @@ impl DdrRam {
.vref_ext_en_lower(false)
.vref_ext_en_upper(false)
);
#[cfg(feature = "target_redpitaya")]
slcr.ddriob_ddr_ctrl.modify(|_, w| w
.vref_int_en(false)
.vref_ext_en_lower(true)
.vref_ext_en_upper(false)
);
});
}
@ -293,6 +320,8 @@ impl DdrRam {
let width = regs::DataBusWidth::Width32bit;
#[cfg(feature = "target_cora_z7_10")]
let width = regs::DataBusWidth::Width16bit;
#[cfg(feature = "target_redpitaya")]
let width = regs::DataBusWidth::Width16bit;
self.regs.ddrc_ctrl.modify(|_, w| w
.soft_rstb(false)
.powerdown_en(false)
@ -322,6 +351,8 @@ impl DdrRam {
let megabytes = 1023;
#[cfg(feature = "target_cora_z7_10")]
let megabytes = 511;
#[cfg(feature = "target_redpitaya")]
let megabytes = 511;
megabytes * 1024 * 1024
}

12
libboard_zynq/src/sdio/mod.rs
View File

@ -116,6 +116,18 @@ impl Sdio {
.speed(true),
);
}
// redpitaya card detect pin
#[cfg(feature = "target_redpitaya")]
{
unsafe {
slcr.sd0_wp_cd_sel.write(46 << 16);
}
slcr.mio_pin_46.write(
slcr::MioPin46::zeroed()
.io_type(slcr::IoBufferType::Lvcmos25)
.speed(true),
);
}
slcr.sdio_rst_ctrl.reset_sdio0();
slcr.aper_clk_ctrl.enable_sdio0();
slcr.sdio_clk_ctrl.enable_sdio0();

2
libboard_zynq/src/stdio.rs
View File

@ -45,7 +45,7 @@ impl DerefMut for LazyUart {
fn deref_mut(&mut self) -> &mut Uart {
match self {
LazyUart::Uninitialized => {
#[cfg(feature = "target_cora_z7_10")]
#[cfg(any(feature = "target_cora_z7_10", feature = "target_redpitaya"))]
let uart = Uart::uart0(UART_RATE);
#[cfg(feature = "target_zc706")]
let uart = Uart::uart1(UART_RATE);

2
libboard_zynq/src/uart/mod.rs
View File

@ -13,7 +13,7 @@ pub struct Uart {
}
impl Uart {
#[cfg(feature = "target_cora_z7_10")]
#[cfg(any(feature = "target_cora_z7_10", feature = "target_redpitaya"))]
pub fn uart0(baudrate: u32) -> Self {
slcr::RegisterBlock::unlocked(|slcr| {
// Route UART 0 RxD/TxD Signals to MIO Pins

1
libcortex_a9/Cargo.toml
View File

@ -7,6 +7,7 @@ edition = "2018"
[features]
target_zc706 = []
target_cora_z7_10 = []
target_redpitaya = []
power_saving = []
default = ["target_zc706"]

1
libsupport_zynq/Cargo.toml
View File

@ -8,6 +8,7 @@ edition = "2018"
[features]
target_zc706 = ["libboard_zynq/target_zc706"]
target_cora_z7_10 = ["libboard_zynq/target_cora_z7_10"]
target_redpitaya = ["libboard_zynq/target_redpitaya"]
panic_handler = []
dummy_irq_handler = []
alloc_core = []

12
openocd/digilent-hs2.cfg Normal file
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@ -0,0 +1,12 @@
# this is the original file from OpenOCD, but with ftdi_device_desc
# removed because some cables don't have it programmed.
# this supports JTAG-HS2 (and apparently Nexys4 as well)
interface ftdi
ftdi_vid_pid 0x0403 0x6014
ftdi_channel 0
ftdi_layout_init 0x00e8 0x60eb
reset_config none

38
openocd/redpitaya.cfg Normal file
View File

@ -0,0 +1,38 @@
source ./digilent-hs2.cfg
adapter_khz 1000
set PL_TAPID 0x13722093
set SMP 1
source ./zynq-7000.cfg
reset_config none
set XC7_JSHUTDOWN 0x0d
set XC7_JPROGRAM 0x0b
set XC7_JSTART 0x0c
set XC7_BYPASS 0x3f
proc xc7_program {tap} {
global XC7_JSHUTDOWN XC7_JPROGRAM XC7_JSTART XC7_BYPASS
irscan $tap $XC7_JSHUTDOWN
irscan $tap $XC7_JPROGRAM
runtest 60000
#JSTART prevents this from working...
#irscan $tap $XC7_JSTART
runtest 2000
irscan $tap $XC7_BYPASS
runtest 2000
}
pld device virtex2 zynq.tap 1
init
xc7_program zynq.tap
halt
# Disable MMU
targets $_TARGETNAME_1
arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
targets $_TARGETNAME_0
arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]