Re: [PATCH v2 2/2] powerpc/83xx: map IMMR with a BAT.

From: Christophe Leroy
Date: Mon Sep 16 2019 - 16:18:09 EST




Le 16/09/2019 Ã 17:04, Scott Wood a ÃcritÂ:
On Mon, 2019-09-16 at 06:42 +0000, 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();
+ int immrsize = IS_ALIGNED(immrbase, SZ_2M) ? SZ_2M : SZ_1M;
+ unsigned long va = __fix_to_virt(FIX_IMMR_BASE);

Why __fix_to_virt() and not fix_to_virt()?


Euh ... because I copy/pasted it from /arch/powerpc/include/asm/nohash/32/mmu-8xx.h

But yes I can do fix_to_virt() instead.

Christophe