Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
The 2 important dipswitches are configured as shown below:
SW1 (for 33MHz SysClk)
----------------------
S1 S2 S3 S4 S5 S6 S7 S8
OFF OFF OFF OFF OFF OFF OFF ON
SW7 (for Op-Code Flash and Boot Option H)
-----------------------------------------
S1 S2 S3 S4 S5 S6 S7 S8
OFF OFF OFF ON OFF OFF OFF OFF
The EEPROM at location 0x52 is loaded with these 16 bytes:
C47042A6 05D7A190 40082350 0d050000
SDR0_SDSTP0[ENG]: 1 : PLL's VCO is the source for PLL forward divisors
SDR0_SDSTP0[SRC]: 1 : Feedback originates from PLLOUTB
SDR0_SDSTP0[SEL]: 0 : Feedback selection is PLL output
SDR0_SDSTP0[TUNE]: 1000111000 : 10 <= M <= 22, 600MHz < VCO <= 900MHz
SDR0_SDSTP0[FBDV]: 4 : PLL feedback divisor
SDR0_SDSTP0[FBDVA]: 2 : PLL forward divisor A
SDR0_SDSTP0[FBDVB]: 5 : PLL forward divisor B
SDR0_SDSTP0[PRBDV0]: 1 : PLL primary divisor B
SDR0_SDSTP0[OPBDV0]: 2 : OPB clock divisor
SDR0_SDSTP0[LFBDV]: 1 : PLL local feedback divisor
SDR0_SDSTP0[PERDV0]: 3 : Peripheral clock divisor 0
SDR0_SDSTP0[MALDV0]: 2 : MAL clock divisor 0
SDR0_SDSTP0[PCIDV0]: 2 : Sync PCI clock divisor 0
SDR0_SDSTP0[PLLTIMER]: 7 : PLL locking timer
SDR0_SDSTP0[RW]: 1 : EBC ROM width: 16-bit
SDR0_SDSTP0[RL]: 0 : EBC ROM location: EBC
SDR0_SDSTP0[PAE]: 0 : PCI internal arbiter: disabled
SDR0_SDSTP0[PHCE]: 0 : PCI host configuration: disabled
SDR0_SDSTP0[ZM]: 3 : ZMII mode: RMII mode 100
SDR0_SDSTP0[CTE]: 0 : CPU trace: disabled
SDR0_SDSTP0[Nto1]: 0 : CPU/PLB ratio N/P: not N to 1
SDR0_SDSTP0[PAME]: 1 : PCI asynchronous mode: enabled
SDR0_SDSTP0[MEM]: 1 : Multiplex: EMAC
SDR0_SDSTP0[NE]: 0 : NDFC: disabled
SDR0_SDSTP0[NBW]: 0 : NDFC boot width: 8-bit
SDR0_SDSTP0[NBW]: 0 : NDFC boot page selection
SDR0_SDSTP0[NBAC]: 0 : NDFC boot address selection cycle: 3 Addr. Cycles, 1 Col. + 2 Row (512 page size)
SDR0_SDSTP0[NARE]: 0 : NDFC auto read : disabled
SDR0_SDSTP0[NRB]: 0 : NDFC Ready/Busy : Ready
SDR0_SDSTP0[NDRSC]: 33333 : NDFC device reset counter
SDR0_SDSTP0[NCG0]: 0 : NDFC/EBC chip select gating CS0 : EBC
SDR0_SDSTP0[NCG1]: 0 : NDFC/EBC chip select gating CS1 : EBC
SDR0_SDSTP0[NCG2]: 0 : NDFC/EBC chip select gating CS2 : EBC
SDR0_SDSTP0[NCG3]: 0 : NDFC/EBC chip select gating CS3 : EBC
SDR0_SDSTP0[NCRDC]: 3333 : NDFC device read count
PPC440EP Clocking Configuration
SysClk is 33.0MHz, M is 20, VCO is 660.0MHz, CPU is 330.0MHz, PLB is 132.0MHz
OPB is 66.0MHz, EBC is 44.0MHz, MAL is 66.0MHz, Sync PCI is 66.0MHz
The above information is reported by Eugene O'Brien
<Eugene.O'Brien@advantechamt.com>. Thanks a lot.
2007-08-06, Stefan Roese <sr@denx.de>
---------------------------------------------------------------------
The configuration for the AMCC 440EP eval board "Bamboo" was changed
to only use 384 kbytes of FLASH for the U-Boot image. This way the
redundant environment can be saved in the remaining 2 sectors of the
same flash chip.
Caution: With an upgrade from an earlier U-Boot version the current
environment will be erased since the environment is now saved in
different sectors. By using the following command the environment can
be saved after upgrading the U-Boot image and *before* resetting the
board:
setenv recover_env 'prot off FFF80000 FFF9FFFF;era FFF80000 FFF9FFFF;' \
'cp.b FFF60000 FFF80000 20000'
2006-07-27, Stefan Roese <sr@denx.de>