ADALM-PlutoSDR 上手（四）kernel devices tree分析
参考ADI 提供的 linux/arch/arm/boot/dts里面的设备树的include的关系：
zynq-pluto-sdr-revb.dts
–>zynq-pluto-sdr.dtsi
–>zynq.dtsi
–>zynq-7000.dtsi
由上面4个文件组成，单个列一下每个文件，方便以后分析：
zynq-7000.dtsi
/*
* Copyright (C) 2011 - 2014 Xilinx
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/ {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,zynq-7000";
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu0: cpu@0 {
compatible = "arm,cortex-a9";
device_type = "cpu";
reg = <0>;
clocks = <&clkc 3>;
clock-latency = <1000>;
cpu0-supply = <®ulator_vccpint>;
operating-points = <
/* kHz uV */
666667 1000000
333334 1000000
>;
};
cpu1: cpu@1 {
compatible = "arm,cortex-a9";
device_type = "cpu";
reg = <1>;
clocks = <&clkc 3>;
};
};
fpga_full: fpga-full {
compatible = "fpga-region";
fpga-mgr = <&devcfg>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
};
pmu@f8891000 {
compatible = "arm,cortex-a9-pmu";
interrupts = <0 5 4>, <0 6 4>;
interrupt-parent = <&intc>;
reg = < 0xf8891000 0x1000 0xf8893000 0x1000 >;
};
regulator_vccpint: fixedregulator {
compatible = "regulator-fixed";
regulator-name = "VCCPINT";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-boot-on;
regulator-always-on;
};
amba: amba {
u-boot,dm-pre-reloc;
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&intc>;
ranges;
adc: adc@f8007100 {
compatible = "xlnx,zynq-xadc-1.00.a";
reg = <0xf8007100 0x20>;
interrupts = <0 7 4>;
interrupt-parent = <&intc>;
clocks = <&clkc 12>;
};
can0: can@e0008000 {
compatible = "xlnx,zynq-can-1.0";
status = "disabled";
clocks = <&clkc 19>, <&clkc 36>;
clock-names = "can_clk", "pclk";
reg = <0xe0008000 0x1000>;
interrupts = <0 28 4>;
interrupt-parent = <&intc>;
tx-fifo-depth = <0x40>;
rx-fifo-depth = <0x40>;
};
can1: can@e0009000 {
compatible = "xlnx,zynq-can-1.0";
status = "disabled";
clocks = <&clkc 20>, <&clkc 37>;
clock-names = "can_clk", "pclk";
reg = <0xe0009000 0x1000>;
interrupts = <0 51 4>;
interrupt-parent = <&intc>;
tx-fifo-depth = <0x40>;
rx-fifo-depth = <0x40>;
};
gpio0: gpio@e000a000 {
compatible = "xlnx,zynq-gpio-1.0";
#gpio-cells = <2>;
clocks = <&clkc 42>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&intc>;
interrupts = <0 20 4>;
reg = <0xe000a000 0x1000>;
};
i2c0: i2c@e0004000 {
compatible = "cdns,i2c-r1p10";
status = "disabled";
clocks = <&clkc 38>;
interrupt-parent = <&intc>;
interrupts = <0 25 4>;
reg = <0xe0004000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
};
i2c1: i2c@e0005000 {
compatible = "cdns,i2c-r1p10";
status = "disabled";
clocks = <&clkc 39>;
interrupt-parent = <&intc>;
interrupts = <0 48 4>;
reg = <0xe0005000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
};
intc: interrupt-controller@f8f01000 {
compatible = "arm,cortex-a9-gic";
#interrupt-cells = <3>;
interrupt-controller;
reg = <0xF8F01000 0x1000>,
<0xF8F00100 0x100>;
};
L2: cache-controller@f8f02000 {
compatible = "arm,pl310-cache";
reg = <0xF8F02000 0x1000>;
interrupts = <0 2 4>;
arm,data-latency = <3 2 2>;
arm,tag-latency = <2 2 2>;
cache-unified;
cache-level = <2>;
};
mc: memory-controller@f8006000 {
compatible = "xlnx,zynq-ddrc-a05";
reg = <0xf8006000 0x1000>;
};
ocmc: ocmc@f800c000 {
compatible = "xlnx,zynq-ocmc-1.0";
interrupt-parent = <&intc>;
interrupts = <0 3 4>;
reg = <0xf800c000 0x1000>;
};
uart0: serial@e0000000 {
compatible = "xlnx,xuartps", "cdns,uart-r1p8";
status = "disabled";
clocks = <&clkc 23>, <&clkc 40>;
clock-names = "uart_clk", "pclk";
reg = <0xE0000000 0x1000>;
interrupts = <0 27 4>;
};
uart1: serial@e0001000 {
compatible = "xlnx,xuartps", "cdns,uart-r1p8";
status = "disabled";
clocks = <&clkc 24>, <&clkc 41>;
clock-names = "uart_clk", "pclk";
reg = <0xE0001000 0x1000>;
interrupts = <0 50 4>;
};
spi0: spi@e0006000 {
compatible = "xlnx,zynq-spi-r1p6";
reg = <0xe0006000 0x1000>;
status = "disabled";
interrupt-parent = <&intc>;
interrupts = <0 26 4>;
clocks = <&clkc 25>, <&clkc 34>;
clock-names = "ref_clk", "pclk";
#address-cells = <1>;
#size-cells = <0>;
};
spi1: spi@e0007000 {
compatible = "xlnx,zynq-spi-r1p6";
reg = <0xe0007000 0x1000>;
status = "disabled";
interrupt-parent = <&intc>;
interrupts = <0 49 4>;
clocks = <&clkc 26>, <&clkc 35>;
clock-names = "ref_clk", "pclk";
#address-cells = <1>;
#size-cells = <0>;
};
qspi: spi@e000d000 {
clock-names = "ref_clk", "pclk";
clocks = <&clkc 10>, <&clkc 43>;
compatible = "xlnx,zynq-qspi-1.0";
status = "disabled";
interrupt-parent = <&intc>;
interrupts = <0 19 4>;
reg = <0xe000d000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
};
smcc: memory-controller@e000e000 {
#address-cells = <1>;
#size-cells = <1>;
status = "disabled";
clock-names = "memclk", "aclk";
clocks = <&clkc 11>, <&clkc 44>;
compatible = "arm,pl353-smc-r2p1";
interrupt-parent = <&intc>;
interrupts = <0 18 4>;
ranges ;
reg = <0xe000e000 0x1000>;
nand0: flash@e1000000 {
status = "disabled";
compatible = "arm,pl353-nand-r2p1";
reg = <0xe1000000 0x1000000>;
#address-cells = <0x1>;
#size-cells = <0x1>;
};
nor0: flash@e2000000 {
status = "disabled";
compatible = "cfi-flash";
reg = <0xe2000000 0x2000000>;
#address-cells = <1>;
#size-cells = <1>;
};
};
gem0: ethernet@e000b000 {
compatible = "cdns,zynq-gem", "cdns,gem";
reg = <0xe000b000 0x1000>;
status = "disabled";
interrupts = <0 22 4>;
clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>;
clock-names = "pclk", "hclk", "tx_clk";
#address-cells = <1>;
#size-cells = <0>;
};
gem1: ethernet@e000c000 {
compatible = "cdns,zynq-gem", "cdns,gem";
reg = <0xe000c000 0x1000>;
status = "disabled";
interrupts = <0 45 4>;
clocks = <&clkc 31>, <&clkc 31>, <&clkc 14>;
clock-names = "pclk", "hclk", "tx_clk";
#address-cells = <1>;
#size-cells = <0>;
};
sdhci0: sdhci@e0100000 {
compatible = "arasan,sdhci-8.9a";
status = "disabled";
clock-names = "clk_xin", "clk_ahb";
clocks = <&clkc 21>, <&clkc 32>;
interrupt-parent = <&intc>;
interrupts = <0 24 4>;
reg = <0xe0100000 0x1000>;
broken-adma2;
};
sdhci1: sdhci@e0101000 {
compatible = "arasan,sdhci-8.9a";
status = "disabled";
clock-names = "clk_xin", "clk_ahb";
clocks = <&clkc 22>, <&clkc 33>;
interrupt-parent = <&intc>;
interrupts = <0 47 4>;
reg = <0xe0101000 0x1000>;
broken-adma2;
};
slcr: slcr@f8000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,zynq-slcr", "syscon", "simple-mfd";
reg = <0xF8000000 0x1000>;
ranges;
clkc: clkc@100 {
#clock-cells = <1>;
compatible = "xlnx,ps7-clkc";
fclk-enable = <0xf>;
clock-output-names = "armpll", "ddrpll", "iopll", "cpu_6or4x",
"cpu_3or2x", "cpu_2x", "cpu_1x", "ddr2x", "ddr3x",
"dci", "lqspi", "smc", "pcap", "gem0", "gem1",
"fclk0", "fclk1", "fclk2", "fclk3", "can0", "can1",
"sdio0", "sdio1", "uart0", "uart1", "spi0", "spi1",
"dma", "usb0_aper", "usb1_aper", "gem0_aper",
"gem1_aper", "sdio0_aper", "sdio1_aper",
"spi0_aper", "spi1_aper", "can0_aper", "can1_aper",
"i2c0_aper", "i2c1_aper", "uart0_aper", "uart1_aper",
"gpio_aper", "lqspi_aper", "smc_aper", "swdt",
"dbg_trc", "dbg_apb";
reg = <0x100 0x100>;
};
rstc: rstc@200 {
compatible = "xlnx,zynq-reset";
reg = <0x200 0x48>;
#reset-cells = <1>;
syscon = <&slcr>;
};
pinctrl0: pinctrl@700 {
compatible = "xlnx,pinctrl-zynq";
reg = <0x700 0x200>;
syscon = <&slcr>;
};
};
dmac_s: dmac@f8003000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0xf8003000 0x1000>;
interrupt-parent = <&intc>;
interrupt-names = "abort", "dma0", "dma1", "dma2", "dma3",
"dma4", "dma5", "dma6", "dma7";
interrupts = <0 13 4>,
<0 14 4>, <0 15 4>,
<0 16 4>, <0 17 4>,
<0 40 4>, <0 41 4>,
<0 42 4>, <0 43 4>;
#dma-cells = <1>;
#dma-channels = <8>;
#dma-requests = <4>;
clocks = <&clkc 27>;
clock-names = "apb_pclk";
};
devcfg: devcfg@f8007000 {
compatible = "xlnx,zynq-devcfg-1.0";
interrupt-parent = <&intc>;
interrupts = <0 8 4>;
reg = <0xf8007000 0x100>;
clocks = <&clkc 12>, <&clkc 15>, <&clkc 16>, <&clkc 17>, <&clkc 18>;
clock-names = "ref_clk", "fclk0", "fclk1", "fclk2", "fclk3";
syscon = <&slcr>;
};
efuse: efuse@f800d000 {
compatible = "xlnx,zynq-efuse";
reg = <0xf800d000 0x20>;
};
global_timer: timer@f8f00200 {
compatible = "arm,cortex-a9-global-timer";
reg = <0xf8f00200 0x20>;
interrupts = <1 11 0x301>;
interrupt-parent = <&intc>;
clocks = <&clkc 4>;
};
ttc0: timer@f8001000 {
interrupt-parent = <&intc>;
interrupts = <0 10 4>, <0 11 4>, <0 12 4>;
compatible = "cdns,ttc";
clocks = <&clkc 6>;
reg = <0xF8001000 0x1000>;
};
ttc1: timer@f8002000 {
interrupt-parent = <&intc>;
interrupts = <0 37 4>, <0 38 4>, <0 39 4>;
compatible = "cdns,ttc";
clocks = <&clkc 6>;
reg = <0xF8002000 0x1000>;
};
scutimer: timer@f8f00600 {
interrupt-parent = <&intc>;
interrupts = <1 13 0x301>;
compatible = "arm,cortex-a9-twd-timer";
reg = <0xf8f00600 0x20>;
clocks = <&clkc 4>;
};
usb0: usb@e0002000 {
compatible = "xlnx,zynq-usb-2.20a", "chipidea,usb2";
status = "disabled";
clocks = <&clkc 28>;
interrupt-parent = <&intc>;
interrupts = <0 21 4>;
reg = <0xe0002000 0x1000>;
phy_type = "ulpi";
};
usb1: usb@e0003000 {
compatible = "xlnx,zynq-usb-2.20a", "chipidea,usb2";
status = "disabled";
clocks = <&clkc 29>;
interrupt-parent = <&intc>;
interrupts = <0 44 4>;
reg = <0xe0003000 0x1000>;
phy_type = "ulpi";
};
watchdog0: watchdog@f8005000 {
clocks = <&clkc 45>;
compatible = "cdns,wdt-r1p2";
interrupt-parent = <&intc>;
interrupts = <0 9 1>;
reg = <0xf8005000 0x1000>;
timeout-sec = <10>;
};
};
};
zynq.dtsi
/include/ "zynq-7000.dtsi"
/ {
interrupt-parent = <&intc>;
aliases: aliases {
ethernet0 = &gem0;
serial0 = &uart1;
};
};
&gem0 {
status = "okay";
};
&clkc {
ps-clk-frequency = <33333333>;
};
&usb0 {
status = "okay";
dr_mode = "host"; /* This breaks OTG mode */
};
&uart1 {
status = "okay";
};
&sdhci0 {
status = "okay";
};
zynq-pluto-sdr.dtsi
/*
* ZYNQ Pluto SDR (Z7010/AD9363)
*
* Copyright (C) 2016 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
/include/ "zynq.dtsi"
/ {
model = "Analog Devices PlutoSDR Rev.A (Z7010/AD9363)";
memory {
device_type = "memory";
reg = <0x00000000 0x20000000>;
};
chosen {
linux,stdout-path = "/amba@0/uart@E0001000";
};
clocks {
ad9364_clkin: clock@0 {
#clock-cells = <0>;
compatible = "adjustable-clock";
clock-frequency = <40000000>;
clock-accuracy = <200000>; /* 200 ppm (ppb) */
clock-output-names = "ad9364_ext_refclk";
};
};
usb_phy0: phy0 {
compatible = "ulpi-phy";
#phy-cells = <0>;
reg = <0xe0002000 0x1000>;
view-port = <0x0170>;
drv-vbus;
};
};
&sdhci0 {
status = "disabled";
};
&watchdog0 {
status = "okay";
reset-on-timeout;
};
&usb0 {
xlnx,phy-reset-gpio = <&gpio0 52 0>;
dr_mode = "otg";
status = "okay";
usb-phy = <&usb_phy0>;
};
&qspi {
status = "okay";
is-dual = <0>;
num-cs = <1>;
primary_flash: ps7-qspi@0 {
#address-cells = <1>;
#size-cells = <1>;
spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
compatible = "n25q256a", "n25q512a", "jedec,spi-nor"; /* same as S25FL256 */
reg = <0x0>;
spi-max-frequency = <50000000>;
partition@qspi-fsbl-uboot {
label = "qspi-fsbl-uboot";
reg = <0x0 0x100000>; /* 1M */
};
partition@qspi-uboot-env {
label = "qspi-uboot-env";
reg = <0x100000 0x20000>; /* 128k */
};
partition@qspi-nvmfs {
label = "qspi-nvmfs";
reg = <0x120000 0xE0000>; /* 1M */
};
partition@qspi-linux {
label = "qspi-linux";
reg = <0x200000 0x1E00000>; /* 30M */
};
};
};
&adc {
xlnx,channels {
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
};
};
};
/ {
fpga_axi: fpga-axi@0 {
compatible = "simple-bus";
#address-cells = <0x1>;
#size-cells = <0x1>;
ranges;
axi_i2c0: i2c@41600000 {
compatible = "xlnx,axi-iic-1.02.a", "xlnx,xps-iic-2.00.a";
reg = <0x41600000 0x10000>;
interrupt-parent = <&intc>;
interrupts = <0 59 4>;
clocks = <&clkc 15>;
clock-names = "pclk";
#address-cells = <1>;
#size-cells = <0>;
};
rx_dma: dma@7c400000 {
compatible = "adi,axi-dmac-1.00.a";
reg = <0x7c400000 0x10000>;
#dma-cells = <1>;
interrupts = <0 57 0>;
clocks = <&clkc 16>;
adi,channels {
#size-cells = <0>;
#address-cells = <1>;
dma-channel@0 {
reg = <0>;
adi,source-bus-width = <64>;
adi,source-bus-type = <2>;
adi,destination-bus-width = <64>;
adi,destination-bus-type = <0>;
adi,length-width = <24>;
};
};
};
tx_dma: dma@7c420000 {
compatible = "adi,axi-dmac-1.00.a";
reg = <0x7c420000 0x10000>;
#dma-cells = <1>;
interrupts = <0 56 0>;
clocks = <&clkc 16>;
adi,channels {
#size-cells = <0>;
#address-cells = <1>;
dma-channel@0 {
reg = <0>;
adi,source-bus-width = <64>;
adi,source-bus-type = <0>;
adi,destination-bus-width = <64>;
adi,destination-bus-type = <2>;
adi,length-width = <24>;
adi,cyclic;
};
};
};
cf_ad9364_adc_core_0: cf-ad9361-lpc@79020000 {
compatible = "adi,axi-ad9361-6.00.a";
reg = <0x79020000 0x6000>;
dmas = <&rx_dma 0>;
dma-names = "rx";
spibus-connected = <&adc0_ad9364>;
adi,axi-decimation-core-available;
};
cf_ad9364_dac_core_0: cf-ad9361-dds-core-lpc@79024000 {
compatible = "adi,axi-ad9364-dds-6.00.a";
reg = <0x79024000 0x1000>;
clocks = <&adc0_ad9364 13>;
clock-names = "sampl_clk";
dmas = <&tx_dma 0>;
dma-names = "tx";
adi,axi-interpolation-core-available;
adi,axi-dds-default-scale = <0>;
};
mwipcore@43c00000 {
compatible = "mathworks,mwipcore-axi4lite-v1.00";
reg = <0x43c00000 0xffff>;
};
};
};
&spi0 {
status = "okay";
adc0_ad9364: ad9361-phy@0 {
#address-cells = <1>;
#size-cells = <0>;
#clock-cells = <1>;
compatible = "adi,ad9363a";
/* SPI Setup */
reg = <0>;
spi-cpha;
spi-max-frequency = <10000000>;
/* Clocks */
clocks = <&ad9364_clkin 0>;
clock-names = "ad9364_ext_refclk";
clock-output-names = "rx_sampl_clk", "tx_sampl_clk";
/* Digital Interface Control */
/* adi,digital-interface-tune-skip-mode:
* 0 = TUNE RX&TX
* 1 = SKIP TX
* 2 = SKIP ALL
*/
//adi,digital-interface-tune-skip-mode = <0>;
adi,pp-tx-swap-enable;
adi,pp-rx-swap-enable;
adi,rx-frame-pulse-mode-enable;
adi,xo-disable-use-ext-refclk-enable;
/* Enable CMOS Mode */
adi,full-port-enable;
adi,digital-interface-tune-fir-disable;
/* Temporary workaround - HDL issue? need to investigate further */
adi,digital-interface-tune-skip-mode = <0>; /* SKIP TX */
adi,tx-fb-clock-delay = <0>;
adi,tx-data-delay = <9>;
adi,swap-ports-enable;
/* Mode Setup */
//adi,split-gain-table-mode-enable;
/* ENSM Mode */
adi,frequency-division-duplex-mode-enable;
//adi,ensm-enable-pin-pulse-mode-enable;
//adi,ensm-enable-txnrx-control-enable;
/* adi,rx-rf-port-input-select:
* 0 = (RX1A_N & RX1A_P) and (RX2A_N & RX2A_P) enabled; balanced
* 1 = (RX1B_N & RX1B_P) and (RX2B_N & RX2B_P) enabled; balanced
* 2 = (RX1C_N & RX1C_P) and (RX2C_N & RX2C_P) enabled; balanced
*
* 3 = RX1A_N and RX2A_N enabled; unbalanced
* 4 = RX1A_P and RX2A_P enabled; unbalanced
* 5 = RX1B_N and RX2B_N enabled; unbalanced
* 6 = RX1B_P and RX2B_P enabled; unbalanced
* 7 = RX1C_N and RX2C_N enabled; unbalanced
* 8 = RX1C_P and RX2C_P enabled; unbalanced
*/
adi,rx-rf-port-input-select = <0>; /* (RX1A_N & RX1A_P) and (RX2A_N & RX2A_P) enabled; balanced */
adi,rx-rf-port-input-select-lock-enable;
/* adi,tx-rf-port-input-select:
* 0 TX1A, TX2A
* 1 TX1B, TX2B
*/
adi,tx-rf-port-input-select = <0>; /* TX1A, TX2A */
adi,tx-rf-port-input-select-lock-enable;
//adi,update-tx-gain-in-alert-enable;
adi,tx-attenuation-mdB = <10000>;
adi,rf-rx-bandwidth-hz = <18000000>;
adi,rf-tx-bandwidth-hz = <18000000>;
adi,rx-synthesizer-frequency-hz = /bits/ 64 <2400000000>;
adi,tx-synthesizer-frequency-hz = /bits/ 64 <2450000000>;
/* BBPLL ADC R2CLK R1CLK CLKRF RSAMPL */
adi,rx-path-clock-frequencies = <983040000 245760000 122880000 61440000 30720000 30720000>;
/* BBPLL DAC T2CLK T1CLK CLKTF TSAMPL */
adi,tx-path-clock-frequencies = <983040000 122880000 122880000 61440000 30720000 30720000>;
/* Gain Control */
/* adi,gc-rx[1|2]-mode:
* 0 = RF_GAIN_MGC
* 1 = RF_GAIN_FASTATTACK_AGC
* 2 = RF_GAIN_SLOWATTACK_AGC
* 3 = RF_GAIN_HYBRID_AGC
*/
adi,gc-rx1-mode = <2>;
adi,gc-rx2-mode = <2>;
adi,gc-adc-ovr-sample-size = <4>; /* sum 4 samples */
adi,gc-adc-small-overload-thresh = <47>; /* sum of squares */
adi,gc-adc-large-overload-thresh = <58>; /* sum of squares */
adi,gc-lmt-overload-high-thresh = <800>; /* mV */
adi,gc-lmt-overload-low-thresh = <704>; /* mV */
adi,gc-dec-pow-measurement-duration = <8192>; /* 0..524288 Samples */
adi,gc-low-power-thresh = <24>; /* 0..-64 dBFS vals are set pos */
//adi,gc-dig-gain-enable;
//adi,gc-max-dig-gain = <15>;
/* Manual Gain Control Setup */
//adi,mgc-rx1-ctrl-inp-enable; /* uncomment to use ctrl inputs */
//adi,mgc-rx2-ctrl-inp-enable; /* uncomment to use ctrl inputs */
adi,mgc-inc-gain-step = <2>;
adi,mgc-dec-gain-step = <2>;
/* adi,mgc-split-table-ctrl-inp-gain-mode:
* (relevant if adi,split-gain-table-mode-enable is set)
* 0 = AGC determine this
* 1 = only in LPF
* 2 = only in LMT
*/
adi,mgc-split-table-ctrl-inp-gain-mode = <0>;
/* Automatic Gain Control Setup */
adi,agc-attack-delay-extra-margin-us= <1>; /* us */
adi,agc-outer-thresh-high = <5>; /* -dBFS */
adi,agc-outer-thresh-high-dec-steps = <2>; /* 0..15 */
adi,agc-inner-thresh-high = <10>; /* -dBFS */
adi,agc-inner-thresh-high-dec-steps = <1>; /* 0..7 */
adi,agc-inner-thresh-low = <12>; /* -dBFS */
adi,agc-inner-thresh-low-inc-steps = <1>; /* 0..7 */
adi,agc-outer-thresh-low = <18>; /* -dBFS */
adi,agc-outer-thresh-low-inc-steps = <2>; /* 0..15 */
adi,agc-adc-small-overload-exceed-counter = <10>; /* 0..15 */
adi,agc-adc-large-overload-exceed-counter = <10>; /* 0..15 */
adi,agc-adc-large-overload-inc-steps = <2>; /* 0..15 */
//adi,agc-adc-lmt-small-overload-prevent-gain-inc-enable;
adi,agc-lmt-overload-large-exceed-counter = <10>; /* 0..15 */
adi,agc-lmt-overload-small-exceed-counter = <10>; /* 0..15 */
adi,agc-lmt-overload-large-inc-steps = <2>; /* 0..7 */
//adi,agc-dig-saturation-exceed-counter = <3>; /* 0..15 */
//adi,agc-dig-gain-step-size = <4>; /* 1..8 */
//adi,agc-sync-for-gain-counter-enable;
adi,agc-gain-update-interval-us = <1000>; /* 1ms */
//adi,agc-immed-gain-change-if-large-adc-overload-enable;
//adi,agc-immed-gain-change-if-large-lmt-overload-enable;
/* Fast AGC */
adi,fagc-dec-pow-measurement-duration = <64>; /* 64 Samples */
//adi,fagc-allow-agc-gain-increase-enable;
adi,fagc-lp-thresh-increment-steps = <1>;
adi,fagc-lp-thresh-increment-time = <5>;
adi,fagc-energy-lost-stronger-sig-gain-lock-exit-cnt = <8>;
adi,fagc-final-overrange-count = <3>;
//adi,fagc-gain-increase-after-gain-lock-enable;
adi,fagc-gain-index-type-after-exit-rx-mode = <0>;
adi,fagc-lmt-final-settling-steps = <1>;
adi,fagc-lock-level = <10>;
adi,fagc-lock-level-gain-increase-upper-limit = <5>;
adi,fagc-lock-level-lmt-gain-increase-enable;
adi,fagc-lpf-final-settling-steps = <1>;
adi,fagc-optimized-gain-offset = <5>;
adi,fagc-power-measurement-duration-in-state5 = <64>;
adi,fagc-rst-gla-engergy-lost-goto-optim-gain-enable;
adi,fagc-rst-gla-engergy-lost-sig-thresh-below-ll = <10>;
adi,fagc-rst-gla-engergy-lost-sig-thresh-exceeded-enable;
adi,fagc-rst-gla-if-en-agc-pulled-high-mode = <0>;
adi,fagc-rst-gla-large-adc-overload-enable;
adi,fagc-rst-gla-large-lmt-overload-enable;
adi,fagc-rst-gla-stronger-sig-thresh-above-ll = <10>;
adi,fagc-rst-gla-stronger-sig-thresh-exceeded-enable;
adi,fagc-state-wait-time-ns = <260>;
adi,fagc-use-last-lock-level-for-set-gain-enable;
/* RSSI */
/* adi,rssi-restart-mode:
* 0 = AGC_IN_FAST_ATTACK_MODE_LOCKS_THE_GAIN,
* 1 = EN_AGC_PIN_IS_PULLED_HIGH,
* 2 = ENTERS_RX_MODE,
* 3 = GAIN_CHANGE_OCCURS,
* 4 = SPI_WRITE_TO_REGISTER,
* 5 = GAIN_CHANGE_OCCURS_OR_EN_AGC_PIN_PULLED_HIGH,
*/
adi,rssi-restart-mode = <3>;
//adi,rssi-unit-is-rx-samples-enable;
adi,rssi-delay = <1>; /* 1us */
adi,rssi-wait = <1>; /* 1us */
adi,rssi-duration = <1000>; /* 1ms */
/* Control Outputs */
adi,ctrl-outs-index = <0>;
adi,ctrl-outs-enable-mask = <0xFF>;
/* AuxADC Temp Sense Control */
adi,temp-sense-measurement-interval-ms = <1000>;
adi,temp-sense-offset-signed = <0xCE>;
adi,temp-sense-periodic-measurement-enable;
/* AuxDAC Control */
adi,aux-dac-manual-mode-enable;
adi,aux-dac1-default-value-mV = <0>;
//adi,aux-dac1-active-in-rx-enable;
//adi,aux-dac1-active-in-tx-enable;
//adi,aux-dac1-active-in-alert-enable;
adi,aux-dac1-rx-delay-us = <0>;
adi,aux-dac1-tx-delay-us = <0>;
adi,aux-dac2-default-value-mV = <0>;
//adi,aux-dac2-active-in-rx-enable;
//adi,aux-dac2-active-in-tx-enable;
//adi,aux-dac2-active-in-alert-enable;
adi,aux-dac2-rx-delay-us = <0>;
adi,aux-dac2-tx-delay-us = <0>;
/* Control GPIOs */
en_agc-gpios = <&gpio0 66 0>;
reset-gpios = <&gpio0 67 0>;
};
};
zynq-pluto-sdr-revb.dts
/dts-v1/;
/include/ "zynq-pluto-sdr.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
&axi_i2c0 {
current_limiter@5a {
compatible = "adi,adm1177";
reg = <0x5a>;
adi,r-sense-mohm = <50>; /* 50 mOhm */
adi,shutdown-threshold-ma = <1059>; /* 1.059 A */
adi,vrange-high-enable;
};
};
/ {
model = "Analog Devices PlutoSDR Rev.B (Z7010/AD9363)";
leds {
compatible = "gpio-leds";
led0 {
label = "led0:green";
gpios = <&gpio0 15 0>;
linux,default-trigger = "heartbeat";
};
};
gpio_keys {
compatible = "gpio-keys";
#address-cells = <1>;
#size-cells = <0>;
button {
interrupt-parent = <&gpio0>;
interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
label = "Button";
linux,code = <BTN_MISC>;
};
};
};