Hi Flash On Thu, Aug 18, 2011 at 4:10 PM, Flash K <[email protected]> wrote: > Thanks Graeme, > Okay, so that means that U boot is a combination of Primary and Secondary > bootloaders, ie loading the MBR and then loading the Kernel image.
U-Boot (like coreboot) sits at the lowest level - It starts executing from the 'Reset Vector' when the CPU is powered-up or reset > So is U Boot along the lines of Syslinux, Lilo, GRUB etc. I mean does it > work in conjunction with a BIOS? I thought that U Boot was a combination > of BIOS + Bootloaders. But thanks for clearing the doubt. BIOS is a (somewhat standard) set of low-level functions which are accessed via software interrupts. Linux does not need BIOS (well, technically it still does for ACPI and possibly some PCI stuff) because it's drivers are written to control the hardware directly, so to run the Linux kernel, U-Boot does not have to implement a complete BIOS. U-Boot implements a very basic set which Linux needs early on to detect memory - It is just enough to fool Linux into booting after U-Boot has loaded the kernel image into memory (typically from a Flash memory devices, but some boards also support SATA interfaces and various file systems) Regards, Graeme > > Will check out Coreboot. > > Regards, > Flash > > ________________________________ > From: Graeme Russ <[email protected]> > To: Flash K <[email protected]> > Cc: "[email protected]" <[email protected]> > Sent: Wednesday, August 17, 2011 10:54:30 PM > Subject: Re: [U-Boot] Support for Intel i7 2nd GEneration processors > > Hi Flash, > > On Thu, Aug 18, 2011 at 3:38 PM, Flash K <[email protected]> wrote: >> Hi, >> >> I would like to know if U boot supports the Intel 2nd generation core i7 >> processors. > > No it doesn't (at least not yet) > > Be aware that U-Boot is a boot-loader for embedded devices (phones, > routers, set-top boxes, TV's etc) and not a general purpose BIOS for a > PC. You might want to have a look at coreboot (www.coreboot.org) if > you are looking for a FOSS implementation of a PC BIOS - They may have > i7 support. > > Regards, > > Graeme > > > _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
