Quoting Peter Stuge <[EMAIL PROTECTED]>: > On Mon, Feb 18, 2008 at 07:45:55PM -0500, [EMAIL PROTECTED] wrote: >> > Once you have the base address, you can read the GPIO control >> > registers from /dev/port, with the seek equal to the base address. >> >> How?? This is the part I am looking for, this would be the golden >> ticket:-) > > Oh! This can be fairly simple. > > dd if=/dev/ioport bs=1 skip=$[0xbasehere] count=asmanyasyouwant | xxd > > OK, so lets clarify?
GPIOBASE?GPIO Base Address (LPC I/F?D31:F0) 31:16 Reserved 15:6 Base Address ? R/W. Provides the 64 bytes of I/O space for GPIO. 5:1 Reserved 0 Resource Indicator ? RO. Hardwired to 1; indicates I/O space. 1. My value is 0x00000501. So if only bits 15:6 are the base address this would make my base address 0x14 correct? This value would become "0xbasehere"? 2. Would I put 64 in "asmanyasyouwant" to dump the whole 64 bytes of I/O space? 3. What is the pipe xxd for? Thanks again for the help:-) Thanks - Joe -- coreboot mailing list [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
