brgmodrst

The BRGMODRST register is used by software to trigger module resets (individual module reset signals). Software explicitly asserts and de-asserts module reset signals by writing bits in the appropriate *MODRST register. It is up to software to ensure module reset signals are asserted for the appropriate length of time and are de-asserted in the correct order. It is also up to software to not assert a module reset signal that would prevent software from de-asserting the module reset signal. For example, software should not assert the module reset to the CPU executing the software. Software writes a bit to 1 to assert the module reset signal and to 0 to de-assert the module reset signal. All fields are reset by a cold reset.All fields are also reset by a warm reset if not masked by the corresponding BRGWARMMASK field. The reset value of all fields is 1. This holds the corresponding module in reset until software is ready to release the module from reset by writing 0 to its field.
Module Instance Base Address Register Address
rstmgr 0xFFD05000 0xFFD0501C

Offset: 0x1C

Access: RW

Important: To prevent indeterminate system behavior, reserved areas of memory must not be accessed by software or hardware. Any area of the memory map that is not explicitly defined as a register space or accessible memory is considered reserved.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Reserved
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Reserved

fpga2hps

RW 0x1

lwhps2fpga

RW 0x1

hps2fpga

RW 0x1

brgmodrst Fields

Bit Name Description Access Reset
2 fpga2hps

Resets FPGA2HPS Bridge

 RW 0x1
1 lwhps2fpga

Resets LWHPS2FPGA Bridge

 RW 0x1
0 hps2fpga

Resets HPS2FPGA Bridge

 RW 0x1