diff options
Diffstat (limited to 'arch/arm/mach-iop32x/cp6.c')
-rw-r--r-- | arch/arm/mach-iop32x/cp6.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/arch/arm/mach-iop32x/cp6.c b/arch/arm/mach-iop32x/cp6.c deleted file mode 100644 index 7135a0ac9949..000000000000 --- a/arch/arm/mach-iop32x/cp6.c +++ /dev/null @@ -1,48 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * IOP Coprocessor-6 access handler - * Copyright (c) 2006, Intel Corporation. - */ -#include <linux/init.h> -#include <asm/traps.h> -#include <asm/ptrace.h> - -#include "iop3xx.h" - -void iop_enable_cp6(void) -{ - u32 temp; - - /* enable cp6 access */ - asm volatile ( - "mrc p15, 0, %0, c15, c1, 0\n\t" - "orr %0, %0, #(1 << 6)\n\t" - "mcr p15, 0, %0, c15, c1, 0\n\t" - "mrc p15, 0, %0, c15, c1, 0\n\t" - "mov %0, %0\n\t" - "sub pc, pc, #4 @ cp_wait\n\t" - : "=r"(temp)); -} - -static int cp6_trap(struct pt_regs *regs, unsigned int instr) -{ - iop_enable_cp6(); - - return 0; -} - -/* permit kernel space cp6 access - * deny user space cp6 access - */ -static struct undef_hook cp6_hook = { - .instr_mask = 0x0f000ff0, - .instr_val = 0x0e000610, - .cpsr_mask = MODE_MASK, - .cpsr_val = SVC_MODE, - .fn = cp6_trap, -}; - -void __init iop_init_cp6_handler(void) -{ - register_undef_hook(&cp6_hook); -} |