On Sat, Dec 22, 2001 at 07:28:44PM +0100, Vivien Chappelier wrote:
> diff -Naur linux/arch/mips64/mm/r4xx0.c linux.patch/arch/mips64/mm/r4xx0.c
> --- linux/arch/mips64/mm/r4xx0.c Sun Dec 9 15:47:14 2001
> +++ linux.patch/arch/mips64/mm/r4xx0.c Thu Dec 20 19:04:46 2001
> @@ -2141,9 +2141,17 @@
> unsigned long flags, addr, begin, end, pow2;
> int tmp;
>
> - tmp = ((config >> 17) & 1);
> + /* XXX: disabling secondary cache for now */
> + change_cp0_config(CONF_SE, 0);
> +
> + tmp = ((config >> 17) & 1); /* check if cache present */
> if(tmp)
> return 0;
> +
> + tmp = ((config >> 12) & 1); /* check if cache enabled */
> + if(!tmp)
> + return 0;
> +
> tmp = ((config >> 22) & 3);
> switch(tmp) {
> case 0:
Perfect. You just broke R4000SC / R4400SC.
Ralf
