From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Date: Fri, 16 Mar 2012 13:04:15 -0500
Subject: [U-Boot] A question about mpc85xx tlb1
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On 03/16/2012 04:40 AM, ?? wrote:
> Dear list,
> 
> In u-boot-2011.12/arch/powerpc/cpu/mpc85xx/cpu_init_early.c , line 151
> 
> void cpu_init_early_f(void)
> {
> ...
> invalidate_tlb(1);
> 
> ...
> }
> 
> 
> The tlb1 has beening invalidated int the line 151,  but I don't know when
> it was  validated again.
> It makes me feel very confused, please help me.

This command invalidates each entry of the TLB1 array that does not have
IPROT set.  Ordinarily there are no such entries.

You don't "revalidate" after invalidating a TLB, you just load whatever
entries you want to be there.

-Scott