diff options
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r-- | arch/sh/kernel/cpu/Makefile | 1 | ||||
-rw-r--r-- | arch/sh/kernel/cpu/init.c | 11 | ||||
-rw-r--r-- | arch/sh/kernel/cpu/ubc.S | 59 |
3 files changed, 0 insertions, 71 deletions
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile index 3d6b9312dc4..d97c803719e 100644 --- a/arch/sh/kernel/cpu/Makefile +++ b/arch/sh/kernel/cpu/Makefile @@ -15,7 +15,6 @@ obj-$(CONFIG_ARCH_SHMOBILE) += shmobile/ # Common interfaces. -obj-$(CONFIG_UBC_WAKEUP) += ubc.o obj-$(CONFIG_SH_ADC) += adc.o obj-$(CONFIG_SH_CLK_CPG) += clock-cpg.o diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c index e932ebef473..580d58b94cc 100644 --- a/arch/sh/kernel/cpu/init.c +++ b/arch/sh/kernel/cpu/init.c @@ -338,17 +338,6 @@ asmlinkage void __init sh_cpu_init(void) } #endif - /* - * Some brain-damaged loaders decided it would be a good idea to put - * the UBC to sleep. This causes some issues when it comes to things - * like PTRACE_SINGLESTEP or doing hardware watchpoints in GDB. So .. - * we wake it up and hope that all is well. - */ -#ifdef CONFIG_SUPERH32 - if (raw_smp_processor_id() == 0) - ubc_wakeup(); -#endif - speculative_execution_init(); expmask_init(); } diff --git a/arch/sh/kernel/cpu/ubc.S b/arch/sh/kernel/cpu/ubc.S deleted file mode 100644 index 81923079fa1..00000000000 --- a/arch/sh/kernel/cpu/ubc.S +++ /dev/null @@ -1,59 +0,0 @@ -/* - * arch/sh/kernel/cpu/ubc.S - * - * Set of management routines for the User Break Controller (UBC) - * - * Copyright (C) 2002 Paul Mundt - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/linkage.h> -#include <asm/ubc.h> - -#define STBCR2 0xffc00010 - -ENTRY(ubc_sleep) - mov #0, r0 - - mov.l 1f, r1 ! Zero out UBC_BBRA .. - mov.w r0, @r1 - - mov.l 2f, r1 ! .. same for BBRB .. - mov.w r0, @r1 - - mov.l 3f, r1 ! .. and again for BRCR. - mov.w r0, @r1 - - mov.w @r1, r0 ! Dummy read BRCR - - mov.l 4f, r1 ! Set MSTP5 in STBCR2 - mov.b @r1, r0 - or #0x01, r0 - mov.b r0, @r1 - - mov.b @r1, r0 ! Two dummy reads .. - mov.b @r1, r0 - - rts - nop - -ENTRY(ubc_wakeup) - mov.l 4f, r1 ! Clear MSTP5 - mov.b @r1, r0 - and #0xfe, r0 - mov.b r0, @r1 - - mov.b @r1, r0 ! Two more dummy reads .. - mov.b @r1, r0 - - rts - nop - -1: .long UBC_BBRA -2: .long UBC_BBRB -3: .long UBC_BRCR -4: .long STBCR2 - |