Emerson PMPPC7448 user manual Bootfile

Monitor: Environment Variables

	Default
Variable:	Value:	Description: (continued)
bootfile	" "	Path to boot file on server (used with TFTP)—set this to the
		“path/file.bin” to specify filename and location of the file to
		load.
bootretry	-1	Choose the number of seconds the Monitor counts down
		before booting user application code (in conjunction with
		autoboot). If the boot command fails, it will try again after
		bootretry seconds. The minimum retry time allowed by the
		Monitor is 10 seconds.
		Valid options: time in seconds, -1 to disable bootretry
cachemode	write	Sets the L1 and L2 cache modes to write-through or copy-
		back.
		Valid options: write, copy
clearmem	on	Select whether to clear unused SDRAM (memory used by
		monitor is excluded) on power-up and reset.
		Valid options: on, off
console	frontpanel	Select the console port.
		Valid options: frontpanel, backplane
dcache	on	Enable processor L1 data cache.
		Valid options: on, off
ecc	on	Enable ECC initialization—all of memory is cleared during
		ECC initialization.
		Valid options: on, off
ecc_1bit_report	on	Select the reporting of single bit, correctable ECC errors to
		the console (errors of 2 or more bits are always reported)
		Valid options: on, off
ecc_1bit_thresh	255	Set the threshold for the number of single bit ECC errors
		before errors are printed to the screen. Disabled when
		ecc_1bit_report is set to “off.” Valid options: 1-255
enumerate	on	PCI bus enumeration.
		Valid options: on, off
eready	on	Wait for PCI EREADY signal before enumeration? This only
		applies to power-up enumeration when the board is a
		Monarch.
		Valid options: on, off
eth_frontpanel	auto	Select speed and duplex settings for the front panel
		Ethernet port.
		Valid options: 10t_half, 10t_full, 100t_half, 100t_full, auto,
		disable
ethport	all	Select which Ethernet port will be used for TFTP.
		Valid options: all, portdbg, porta (cPSB Port A), portb (cPSB
		Port B)
eth_porta	auto	Select speed and duplex settings for Ethernet porta.
		Valid options: 10t_half, 10t_full, 100t_half, 100t_full, auto,
		disable (must autonegotiate for gigabit speeds)

10006757-02 PmPPC7448 User’s Manual

11-23