> On 7 January 2012 20:11, Marek Vasut <marek.va...@gmail.com> wrote: > > The AMBA IDs are supposed to be at the end of 0x2000 block, which the > > PL011 UART allocates. Current QEMU implementation puts those IDs at > > 0x1000 offset, which is wrong. The QEMU implementation also allocates > > only 0x1000 instead of 0x2000 of space. > > Why do you think this change is correct? The PL011 TRM > http://infocenter.arm.com/help/topic/com.arm.doc.ddi0183g/I18381.html > says the ID registers are at 0xFE0..0xFFC. > and for instance on the PBX-A9 devboard: > http://infocenter.arm.com/help/topic/com.arm.doc.dui0440b/Bbajihec.html > the UARTs are at 0x10009000, 0x1000A000, 0x1000B000, 0x1000C000, so > they clearly can't be 0x2000 in size.
Then we have a problem, because eg. on freescale mx28 they are 0x2000 big. The only conclusion I can draw from this is that the size of the segment that can be assigned to PL011 is variable and the ID-octet is always at the end. M > > -- PMM
