Emerson PMPPC7448 user manual Monitor: Basic Operation, 10006757-02, 11-3, baudrate, per enumerate

Models: PMPPC7448

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per icache environment variableper enumerate11-3Manual backgroundMonitor: Basic Operation

Figure 11-2:Power-up/Reset Sequence Flowchart

RESET

Initialize

Initialize HID0 Initialize MSR

Relocate the base

of the MV64460 internal registers

7448 floating point

register

initialization

Invalidate the L2

cache

7448 BAT

initialization

Invalidate and enable the L1 cache

Setup initial stack and data region in cache

Initialize the

MV64460 CPU

interface settings

Configure the

MV64460 device chip selects for flash and CPLD

Enable icache

LED 0001

Initialize the

U-Boot

environment

Init. serial port per

baudrate

environment var.

LED 0010

Display version

string

Display CPU and board information LED 0011

Initialize

I2C

Init. SDRAM. Clear per clearmem and configure per ecc environment vars.

LED 0100

Initialize

final stack

Relocate U-Boot

to RAM

LED 0101

flash

Initialize malloc

area

Initialize

PCI

Is module a

Monarch

No

Enable MV64460

interrupts

Perform board diagnostics per powerondiags environment var.

Display board serial number

Configure dcache per cachemode and dcache environment vars.

Configure icache

per icache environment variable

Configure L2

cache per l2cache

environment

variable

 

Enumerate PCI

Yes

per enumerate

environment

 

 

variable

Display LED 0110

Initialize Ethernet

ports

Turn off debug

LEDs

Main Loop

10006757-02

PmPPC7448 User’s Manual

11-3

Page 105
Image 105
Emerson PMPPC7448 Monitor: Basic Operation, 10006757-02, 11-3, baudrate, per icache environment variable, per enumerate