TS-7700 Syscon

From Technologic Systems Manuals

The registers listed below are all 16 bit registers and must be accessed with 16 bit reads and writes. This register block appears at base address 0x80004000. For example, to identify the TS-4710:

devmem 0x80004000 16

This will return 0x7700 to read back the model ID.

Many of the syscon options can be manipulated using tshwctl.

 Usage: tshwctl [OPTION] ...
 Technologic Systems TS-471x / TS-77XX FPGA manipulation.
 
 General options:
   -g, --getmac            Display ethernet MAC address
   -s, --setmac=MAC        Set ethernet MAC address
   -R, --reboot            Reboot the board
   -t, --getrtc            Get system time from RTC time/date
   -S, --setrtc            Set RTC time/date from system time
   -F, --rtcinfo           Print RTC temperature, poweron/off time, etc
   -v, --nvram             Get/Set RTC NVRAM
   -i, --info              Display board FPGA info
   -e, --greenledon        Turn green LED on
   -b, --greenledoff       Turn green LED off
   -c, --redledon          Turn red LED on
   -d, --redledoff         Turn red LED off
   -D, --setdio=<pin>      Sets DDR and asserts a specified pin
   -O, --clrdio=<pin>      Sets DDR and deasserts a specified pin
   -G, --getdio=<pin>      Sets DDR and gets DIO pin input value
   -x, --random            Get 16-bit hardware random number
   -W, --watchdog          Daemonize and set up /dev/watchdog
   -n, --setrng            Seed the kernel random number generator
   -X, --resetswitchon     Enable reset switch
   -Y, --resetswitchoff    Disable reset switch
   -l, --loadfpga=FILE     Load FPGA bitstream from FILE
   -q, --cputemp           Display the CPU die temperature
   -U, --removejp=JP       Remove soft jumper numbered JP (1-8)
   -J, --setjp=JP          Set soft jumper numbered JP (1-8)
   -k, --txenon=XUART(s)   Enables the TX Enable for an XUART
   -K, --txenoff=XUART(s)  Disables a specified TX Enable
   -N, --canon=PORT(s)     Enables a CAN port
   -f, --canoff=PORT(s)    Disables a CAN port
   -h, --help              This help
   -j, --bbclkon           Enables a 12.5MHz clock on DIO 3
   -H, --bbclkoff          Disables the 12.5MHz clock
   -E, --bbclk2on          Enables a 25MHz clock on DIO 34
   -I, --bbclk2off         Disables the 25MHz clock
Offset Bits Usage
0x00 15:0 Model ID: Reads 0x7700
0x02 15 Reset switch enable (Use DIO 29 input)
14 Reserved (write 0)
13 Enable UART4 TXEN (override DIO 14)
12 Enable UART0 TXEN (override DIO 12)
11 Enable 12.5MHz base board clock (override DIO 3)
10 Enable SPI (override DIO 17-20)
9 Reserved
8 Enable CAN (override DIO 5,6)
7:6 Scratch Register
5 Mode2
4 Mode1
3:0 FPGA revision
0x04 15:0 Reserved
0x06 15:0 Watchdog feed register
0x08 15:0 Free running 1MHz counter LSB
0x0a 15:0 Free running 1MHz counter MSB
0x0c 15:0 Hardware RNG LSB
0x0e 15:0 Hardware RNG MSB
0x10 15:0 EVGPIO Data
0x12 15:13 Reserved
12 Red LED (1 = on)
11 Green LED (1 = on)
10:0 Reserved
0x14 15:0 EVGPIO Mask
0x16 15 Enable UART2 TXEN (override DIO 10)
14 Enable UART1 TXEN (override DIO 9)
13 Enable UART5 TXEN (override DIO 7)
12 Enable UART3 TXEN (override DIO 13)
11:0 Reserved
0x18 15:0 Reserved
0x1a 15:0 Reserved
0x1c 15:0 Reserved
0x1e 15:0 Reserved
0x20 15 Reserved
14:0 DIO DIO 14:0 input data
0x22 15:11 Reserved
10:6 DIO DIO 26:22 input data
5:0 DIO DIO 20:15 input data
0x24 15:0 DIO DIO 42:27 input data
0x26 15:12 Reserved
11:0 DIO DIO 59:48 input data
0x28 15:4 Reserved
3:0 FPGA TAG memory access [1]
0x2a 15:0 Custom load ID register [2]
0x2c 15:7 Reserved
6 EVGPIO
5 Offboard IRQ 7
4 Offboard IRQ 6
3 Offboard IRQ 5
2 CAN2 IRQ
1 CAN IRQ
0 XUART IRQ
0x2e 15:6 Reserved
5 Offboard IRQ 7 mask (1 disabled, 0 on) [3]
4 Offboard IRQ 6 mask (1 disabled, 0 on) [3]
3 Offboard IRQ 5 mask (1 disabled, 0 on)[3]
2 CAN2 IRQ mask (1 disabled, 0 on)[3]
1 CAN IRQ mask (1 disabled, 0 on)[3]
0 XUART IRQ mask (1 disabled, 0 on)[3]
  1. TAG memory stores persistent data on the FPGA such a the MAC address, CPU settings, and the born on date. Software using this data should instead use tshwctl rather than accessing this register manually.
  2. Reads back 0 on default load. Used to identify customized bitstreams
  3. 3.0 3.1 3.2 3.3 3.4 3.5 The IRQ masks are handled automatically by the kernel after an IRQ is requested. Under most circumstances these registers should not be manipulated.