diff options
Diffstat (limited to 'arch/frv/kernel/head-uc-fr451.S')
| -rw-r--r-- | arch/frv/kernel/head-uc-fr451.S | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/arch/frv/kernel/head-uc-fr451.S b/arch/frv/kernel/head-uc-fr451.S deleted file mode 100644 index b2a76c4a1786..000000000000 --- a/arch/frv/kernel/head-uc-fr451.S +++ /dev/null @@ -1,174 +0,0 @@ -/* head-uc-fr451.S: FR451 uc-linux specific bits of initialisation - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * 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/init.h> -#include <linux/threads.h> -#include <linux/linkage.h> -#include <asm/ptrace.h> -#include <asm/page.h> -#include <asm/spr-regs.h> -#include <asm/mb86943a.h> -#include "head.inc" - - -#define __400_DBR0 0xfe000e00 -#define __400_DBR1 0xfe000e08 -#define __400_DBR2 0xfe000e10 -#define __400_DBR3 0xfe000e18 -#define __400_DAM0 0xfe000f00 -#define __400_DAM1 0xfe000f08 -#define __400_DAM2 0xfe000f10 -#define __400_DAM3 0xfe000f18 -#define __400_LGCR 0xfe000010 -#define __400_LCR 0xfe000100 -#define __400_LSBR 0xfe000c00 - - __INIT - .balign 4 - -############################################################################### -# -# set the protection map with the I/DAMPR registers -# -# ENTRY: EXIT: -# GR25 SDRAM size [saved] -# GR26 &__head_reference [saved] -# GR30 LED address [saved] -# -############################################################################### - .globl __head_fr451_set_protection -__head_fr451_set_protection: - movsg lr,gr27 - - movgs gr0,dampr10 - movgs gr0,damlr10 - movgs gr0,dampr9 - movgs gr0,damlr9 - movgs gr0,dampr8 - movgs gr0,damlr8 - - # set the I/O region protection registers for FR401/3/5 - sethi.p %hi(__region_IO),gr5 - setlo %lo(__region_IO),gr5 - sethi.p %hi(0x1fffffff),gr7 - setlo %lo(0x1fffffff),gr7 - ori gr5,#xAMPRx_SS_512Mb|xAMPRx_S_KERNEL|xAMPRx_C|xAMPRx_V,gr5 - movgs gr5,dampr11 ; General I/O tile - movgs gr7,damlr11 - - # need to tile the remaining IAMPR/DAMPR registers to cover as much of the RAM as possible - # - start with the highest numbered registers - sethi.p %hi(__kernel_image_end),gr8 - setlo %lo(__kernel_image_end),gr8 - sethi.p %hi(32768),gr4 ; allow for a maximal allocator bitmap - setlo %lo(32768),gr4 - add gr8,gr4,gr8 - sethi.p %hi(1024*2048-1),gr4 ; round up to nearest 2MiB - setlo %lo(1024*2048-1),gr4 - add.p gr8,gr4,gr8 - not gr4,gr4 - and gr8,gr4,gr8 - - sethi.p %hi(__page_offset),gr9 - setlo %lo(__page_offset),gr9 - add gr9,gr25,gr9 - - sethi.p %hi(0xffffc000),gr11 - setlo %lo(0xffffc000),gr11 - - # GR8 = base of uncovered RAM - # GR9 = top of uncovered RAM - # GR11 = xAMLR mask - LEDS 0x3317 - call __head_split_region - movgs gr4,iampr7 - movgs gr6,iamlr7 - movgs gr5,dampr7 - movgs gr7,damlr7 - - LEDS 0x3316 - call __head_split_region - movgs gr4,iampr6 - movgs gr6,iamlr6 - movgs gr5,dampr6 - movgs gr7,damlr6 - - LEDS 0x3315 - call __head_split_region - movgs gr4,iampr5 - movgs gr6,iamlr5 - movgs gr5,dampr5 - movgs gr7,damlr5 - - LEDS 0x3314 - call __head_split_region - movgs gr4,iampr4 - movgs gr6,iamlr4 - movgs gr5,dampr4 - movgs gr7,damlr4 - - LEDS 0x3313 - call __head_split_region - movgs gr4,iampr3 - movgs gr6,iamlr3 - movgs gr5,dampr3 - movgs gr7,damlr3 - - LEDS 0x3312 - call __head_split_region - movgs gr4,iampr2 - movgs gr6,iamlr2 - movgs gr5,dampr2 - movgs gr7,damlr2 - - LEDS 0x3311 - call __head_split_region - movgs gr4,iampr1 - movgs gr6,iamlr1 - movgs gr5,dampr1 - movgs gr7,damlr1 - - # cover kernel core image with kernel-only segment - LEDS 0x3310 - sethi.p %hi(__page_offset),gr8 - setlo %lo(__page_offset),gr8 - call __head_split_region - -#ifdef CONFIG_PROTECT_KERNEL - ori.p gr4,#xAMPRx_S_KERNEL,gr4 - ori gr5,#xAMPRx_S_KERNEL,gr5 -#endif - - movgs gr4,iampr0 - movgs gr6,iamlr0 - movgs gr5,dampr0 - movgs gr7,damlr0 - - # start in TLB context 0 with no page tables - movgs gr0,cxnr - movgs gr0,ttbr - - # the FR451 also has an extra trap base register - movsg tbr,gr4 - movgs gr4,btbr - - # turn on the timers as appropriate - movgs gr0,timerh - movgs gr0,timerl - movgs gr0,timerd - movsg hsr0,gr4 - sethi.p %hi(HSR0_ETMI),gr5 - setlo %lo(HSR0_ETMI),gr5 - or gr4,gr5,gr4 - movgs gr4,hsr0 - - LEDS 0x3300 - jmpl @(gr27,gr0) |