From: "David H. Lynch Jr" <dhlii@comcast.net>
To: linuxppc-embedded <linuxppc-embedded@ozlabs.org>
Subject: Re: Board Bringup problem with 2.6.13.4
Date: Fri, 04 Nov 2005 15:27:33 -0500 [thread overview]
Message-ID: <436BC435.4090203@comcast.net> (raw)
In-Reply-To: <43688AAD.5050208@comcast.net>
I am working through bringing up Linux 2.6.14 on a Xilinx V4 based
ppc405. with memory from 0x0 through 0x7fffffff
I have a debugging port at XPAR_KEYHOLE, I basically copied the code to
setup a tlb entry for the serial debugging console to get an additional
entry for my debugging port.
I am not particularly sharp on memory management.
Can I just cut and paste that code changing the address, and the tlb
slot as below ?
/* Load a TLB entry for the Keyhole, We use a 4k real==virtual
mapping. */
lis r3,XPAR_KEYHOLE@h
ori r3,r3,XPAR_KEYHOLE@l
mr r4,r3
clrrwi r4,r4,12
ori r4,r4,(TLB_WR|TLB_I|TLB_M|TLB_G)
clrrwi r3,r3,12
ori r3,r3,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K))
li r0,1 /* TLB slot 1 */
tlbwe r4,r0,TLB_DATA
tlbwe r3,r0,TLB_TAG
prev parent reply other threads:[~2005-11-04 20:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-06 13:00 Regarding the PPC board bringup with Linux 2.6 kernel vinay hegde
2005-09-06 14:54 ` Wolfgang Denk
2005-09-06 16:09 ` Clemens Koller
2005-09-06 16:34 ` Robert P. J. Day
2005-11-02 9:45 ` Board Bringup problem with 2.6.13.4 David H. Lynch Jr
2005-11-02 14:07 ` Andrei Konovalov
2005-11-04 20:24 ` David H. Lynch Jr
2005-11-04 20:27 ` David H. Lynch Jr [this message]
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