From c22bebde69ec38e71d06e6dc837da5e082a30aac Mon Sep 17 00:00:00 2001 From: grehan Date: Thu, 8 Jul 2004 06:13:05 +0000 Subject: Remove cache flush, 256Mb 1:1 BAT mapping, and BAT clearing. This doesn't work on a G5 (no BAT registers) or on PearPC (dBAT3 used for mapping the framebuffer and BATs not re-inited on OpenFirmware calls). It also hid a number of bugs. --- sys/boot/powerpc/loader/start.c | 45 ----------------------------------------- sys/boot/powerpc/ofw/start.c | 45 ----------------------------------------- 2 files changed, 90 deletions(-) diff --git a/sys/boot/powerpc/loader/start.c b/sys/boot/powerpc/loader/start.c index 9f82322..3813eb5 100644 --- a/sys/boot/powerpc/loader/start.c +++ b/sys/boot/powerpc/loader/start.c @@ -38,15 +38,6 @@ __FBSDID("$FreeBSD$"); void startup(void *, int, int (*)(void *), char *, int); -#ifdef XCOFF_GLUE -asm(" \n\ - .text \n\ - .globl _entry \n\ -_entry: \n\ - .long _start,0,0 \n\ -"); -#endif - __asm(" \n\ .data \n\ stack: \n\ @@ -55,46 +46,10 @@ stack: \n\ .text \n\ .globl _start \n\ _start: \n\ - li %r8,0 \n\ - li %r9,0x100 \n\ - mtctr %r9 \n\ -1: \n\ - dcbf %r0,%r8 \n\ - icbi %r0,%r8 \n\ - addi %r8,%r8,0x20 \n\ - bdnz 1b \n\ - sync \n\ - isync \n\ - \n\ lis %r1,stack@ha \n\ addi %r1,%r1,stack@l \n\ addi %r1,%r1,8192 \n\ \n\ - mfmsr %r8 \n\ - li %r0,0 \n\ - mtmsr %r0 \n\ - isync \n\ - \n\ - mtibatu 0,%r0 \n\ - mtibatu 1,%r0 \n\ - mtibatu 2,%r0 \n\ - mtibatu 3,%r0 \n\ - mtdbatu 0,%r0 \n\ - mtdbatu 1,%r0 \n\ - mtdbatu 2,%r0 \n\ - mtdbatu 3,%r0 \n\ - \n\ - li %r9,0x12 /* BATL(0, BAT_M, BAT_PP_RW) */ \n\ - mtibatl 0,%r9 \n\ - mtdbatl 0,%r9 \n\ - li %r9,0x1ffe /* BATU(0, BAT_BL_256M, BAT_Vs) */ \n\ - mtibatu 0,%r9 \n\ - mtdbatu 0,%r9 \n\ - isync \n\ - \n\ - mtmsr %r8 \n\ - isync \n\ - \n\ b startup \n\ "); diff --git a/sys/boot/powerpc/ofw/start.c b/sys/boot/powerpc/ofw/start.c index 9f82322..3813eb5 100644 --- a/sys/boot/powerpc/ofw/start.c +++ b/sys/boot/powerpc/ofw/start.c @@ -38,15 +38,6 @@ __FBSDID("$FreeBSD$"); void startup(void *, int, int (*)(void *), char *, int); -#ifdef XCOFF_GLUE -asm(" \n\ - .text \n\ - .globl _entry \n\ -_entry: \n\ - .long _start,0,0 \n\ -"); -#endif - __asm(" \n\ .data \n\ stack: \n\ @@ -55,46 +46,10 @@ stack: \n\ .text \n\ .globl _start \n\ _start: \n\ - li %r8,0 \n\ - li %r9,0x100 \n\ - mtctr %r9 \n\ -1: \n\ - dcbf %r0,%r8 \n\ - icbi %r0,%r8 \n\ - addi %r8,%r8,0x20 \n\ - bdnz 1b \n\ - sync \n\ - isync \n\ - \n\ lis %r1,stack@ha \n\ addi %r1,%r1,stack@l \n\ addi %r1,%r1,8192 \n\ \n\ - mfmsr %r8 \n\ - li %r0,0 \n\ - mtmsr %r0 \n\ - isync \n\ - \n\ - mtibatu 0,%r0 \n\ - mtibatu 1,%r0 \n\ - mtibatu 2,%r0 \n\ - mtibatu 3,%r0 \n\ - mtdbatu 0,%r0 \n\ - mtdbatu 1,%r0 \n\ - mtdbatu 2,%r0 \n\ - mtdbatu 3,%r0 \n\ - \n\ - li %r9,0x12 /* BATL(0, BAT_M, BAT_PP_RW) */ \n\ - mtibatl 0,%r9 \n\ - mtdbatl 0,%r9 \n\ - li %r9,0x1ffe /* BATU(0, BAT_BL_256M, BAT_Vs) */ \n\ - mtibatu 0,%r9 \n\ - mtdbatu 0,%r9 \n\ - isync \n\ - \n\ - mtmsr %r8 \n\ - isync \n\ - \n\ b startup \n\ "); -- cgit v1.1