Le 16/09/2019 à 17:04, Scott Wood a écrit :
On Mon, 2019-09-16 at 06:42 +, Christophe Leroy wrote:
@@ -145,6 +147,15 @@ void __init mpc83xx_setup_arch(void)
if (ppc_md.progress)
ppc_md.progress("mpc83xx_setup_arch()", 0);
+ if (!__map_without_bats) {
+
On Mon, 2019-09-16 at 06:42 +, Christophe Leroy wrote:
> @@ -145,6 +147,15 @@ void __init mpc83xx_setup_arch(void)
> if (ppc_md.progress)
> ppc_md.progress("mpc83xx_setup_arch()", 0);
>
> + if (!__map_without_bats) {
> + phys_addr_t immrbase = get_immrbase(
On mpc83xx with a QE, IMMR is 2Mbytes and aligned on 2Mbytes boundarie.
On mpc83xx without a QE, IMMR is 1Mbyte and 1Mbyte aligned.
Each driver will map a part of it to access the registers it needs.
Some drivers will map the same part of IMMR as other drivers.
In order to reduce TLB misses, map
