On Thu, Mar 07, 2013 at 04:59:43PM +0800, WANG Siyuan wrote:
Hi, I am trying to boot a hard disk image using coreboot and seabios on SimNow Simulator. The system stops at seabios stage.
PORT_CMD_START fails in function ahci_port_setup (seabios/src/ahci.c), Then I traced into function ahci_command (seabios/src/ahci.c), I found the value of register ORT_IRQ_STAT is always 0: intbits = ahci_port_readl(ctrl, pnr, PORT_IRQ_STAT); intbits returns 0 all the time, so system stops here until time out.
Any comments would be appreciated.
There is a 32 second timeout in that code (which may be a longer wall time if run under a simulator) - are you sure it didn't eventually time out. As to why it is taking so long - could be an error in the simulator or in the seabios driver. You could try disabling the ahci code in seabios via kconfig.
-Kevin