bootstrap
Bootstrap fields sampled by NAND Flash Controller when released from reset.
All fields are reset by a cold or warm reset.
| Module Instance | Base Address | Register Address |
|---|---|---|
| sysmgr | 0xFFD08000 | 0xFFD08110 |
Offset: 0x110
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 |
tworowaddr RW 0x0 |
noloadb0p0 RW 0x0 |
page512 RW 0x0 |
noinit RW 0x0 |
|||||||||||
bootstrap Fields
| Bit | Name | Description | Access | Reset |
|---|---|---|---|---|
| 3 | tworowaddr | If 1, NAND device requires only 2 row address cycles instead of the normal 3 row address cycles. |
RW | 0x0 |
| 2 | noloadb0p0 | If 1, inhibits NAND Flash Controller from loading page 0 of block 0 of the NAND device as part of the initialization procedure. |
RW | 0x0 |
| 1 | page512 | If 1, NAND device has a 512 byte page size. |
RW | 0x0 |
| 0 | noinit | If 1, inhibits NAND Flash Controller from performing initialization when coming out of reset. Instead, software must program all registers pertaining to device parameters like page size, width, etc. |
RW | 0x0 |