On Dec 13, 2010, at 3:06 PM, Becky Bruce wrote:
> Some platforms might want to override the default wimge=0 for
> DDR. Add CONFIG_DDR_TLB_WIMGE for those platforms to use.
> This will initially only be used by TQM85xx, but could be
> useful for other boards or testing going forward.
This should be CONFIG_SYS_DDR_MPC85xx_TLB_WIMGE
>
> Signed-off-by: Becky Bruce <bec...@kernel.crashing.org>
> ---
> arch/powerpc/cpu/mpc85xx/tlb.c | 6 +++++-
> 1 files changed, 5 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/cpu/mpc85xx/tlb.c b/arch/powerpc/cpu/mpc85xx/tlb.c
> index e3a71ae..513aaaa 100644
> --- a/arch/powerpc/cpu/mpc85xx/tlb.c
> +++ b/arch/powerpc/cpu/mpc85xx/tlb.c
> @@ -250,10 +250,14 @@ setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int
> memsize_in_meg)
> {
> int i;
> unsigned int tlb_size;
> + unsigned int wimge = 0;
> unsigned int ram_tlb_address = (unsigned int)CONFIG_SYS_DDR_SDRAM_BASE;
> unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xf;
> u64 size, memsize = (u64)memsize_in_meg << 20;
>
> +#ifdef CONFIG_DDR_TLB_WIMGE
> + wimge = CONFIG_DDR_TLB_WIMGE;
> +#endif
> size = min(memsize, CONFIG_MAX_MEM_MAPPED);
>
> /* Convert (4^max) kB to (2^max) bytes */
> @@ -277,7 +281,7 @@ setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int
> memsize_in_meg)
> tlb_size = (camsize - 10) / 2;
>
> set_tlb(1, ram_tlb_address, p_addr,
> - MAS3_SX|MAS3_SW|MAS3_SR, 0,
> + MAS3_SX|MAS3_SW|MAS3_SR, wimge,
> 0, ram_tlb_index, tlb_size, 1);
>
> size -= 1ULL << camsize;
> --
> 1.5.6.5
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