Broadcom BCM91250E, Руководство пользователя

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User Manual BCM91250E
01/07/05
B ro a d c o m C o r p o r a t i o n
Document 91250E-UM100-R Firmware Configuration Page 17
S e c t i o n 4 : F i r m w a r e C o n f i g u r a t i o n
The firmware image in the flash is bi-endian, so it supports both big and little-endian operation. The following
table describes where and how much physical memory the firmware maps to the chip selects on the generic
bus.
Table 12: Firmware Generic Bus Memory Mapping
Chip Select Description Physical Memory Address Size
CS0 Boot ROM 0x1FC0_0000 2 MB
CS1 Alternate Boot ROM 0x1F80_0000 2 MB
Table 13: Firmware Configuration Bits Mapping
SW1
value
Action
0x0 UART console, no PCI initialization
0x1 PromICE console, no PCI initialization
0x2* UART console, PCI initialization
0x3 PromICE console, PCI initialization
0x6 UART console, PCI initialization, Hypertransport (HT) slave mode
0x7 UART console, no PCI initialization, CFE safe mode
0x8 UART console, PCI initialization, device download mode
0x9 UART console, PCI initialization, device reboot mode
* = recommended/default setting.
All other settings are reserved.