Hi Albert, On 6 July 2015 at 07:10, Albert ARIBAUD <albert.u.b...@aribaud.net> wrote: > Hello Simon, > > On Mon, 6 Jul 2015 06:35:23 -0600, Simon Glass <s...@chromium.org> wrote: >> Hi Stephen, >> >> I see in the kernel device tree that the rpi uses address 0x7e980000 >> for the DWC2 USB controller. But in U-Boot CONFIG_USB_DWC2_REG_ADDR is >> set to 0x20980000. Is there some sort of translation going on here? > > https://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf > > Section 1.2.3 / page 6 > > "Physical addresses range from 0x20000000 to 0x20FFFFFF for peripherals. > The bus addresses for peripherals are set up to map onto the peripheral > bus address range starting at 0x7E000000. Thus a peripheral advertised > here at bus address 0x7Ennnnnn is available at physical address > 0x20nnnnnn"
Thanks for the link. It looks like I'll need to implement the 'ranges' property for simple-bus, sadly. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
