diff options
author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:04 -0500 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:03 +0200 |
commit | ea0364f1bbfed1e3ea711147420875cf338fe77a (patch) | |
tree | 15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /arch/arm/lib | |
parent | 89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff) |
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/arm/lib')
-rw-r--r-- | arch/arm/lib/Makefile | 82 | ||||
-rw-r--r-- | arch/arm/lib/_ashldi3.S | 48 | ||||
-rw-r--r-- | arch/arm/lib/_ashrdi3.S | 48 | ||||
-rw-r--r-- | arch/arm/lib/_divsi3.S | 142 | ||||
-rw-r--r-- | arch/arm/lib/_lshrdi3.S | 48 | ||||
-rw-r--r-- | arch/arm/lib/_modsi3.S | 99 | ||||
-rw-r--r-- | arch/arm/lib/_udivsi3.S | 93 | ||||
-rw-r--r-- | arch/arm/lib/_umodsi3.S | 88 | ||||
-rw-r--r-- | arch/arm/lib/board.c | 452 | ||||
-rw-r--r-- | arch/arm/lib/bootm.c | 279 | ||||
-rw-r--r-- | arch/arm/lib/cache-cp15.c | 120 | ||||
-rw-r--r-- | arch/arm/lib/cache.c | 36 | ||||
-rw-r--r-- | arch/arm/lib/div0.c | 30 | ||||
-rw-r--r-- | arch/arm/lib/eabi_compat.c | 18 | ||||
-rw-r--r-- | arch/arm/lib/interrupts.c | 187 | ||||
-rw-r--r-- | arch/arm/lib/reset.c | 53 |
16 files changed, 1823 insertions, 0 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile new file mode 100644 index 00000000000..02933485cd1 --- /dev/null +++ b/arch/arm/lib/Makefile @@ -0,0 +1,82 @@ +# +# (C) Copyright 2002-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(ARCH).a +LIBGCC = $(obj)libgcc.a + +GLSOBJS += _ashldi3.o +GLSOBJS += _ashrdi3.o +GLSOBJS += _divsi3.o +GLSOBJS += _lshrdi3.o +GLSOBJS += _modsi3.o +GLSOBJS += _udivsi3.o +GLSOBJS += _umodsi3.o + +GLCOBJS += div0.o + +COBJS-y += board.o +COBJS-y += bootm.o +COBJS-y += cache.o +ifndef CONFIG_SYS_NO_CP15_CACHE +COBJS-y += cache-cp15.o +endif +COBJS-y += interrupts.o +COBJS-y += reset.o + +SRCS := $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \ + $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) +LGOBJS := $(addprefix $(obj),$(GLSOBJS)) \ + $(addprefix $(obj),$(GLCOBJS)) + +# Always build libarm.a +TARGETS := $(LIB) + +# Build private libgcc only when asked for +ifdef USE_PRIVATE_LIBGCC +TARGETS += $(LIBGCC) +endif + +# For EABI conformant tool chains, provide eabi_compat() +ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) +TARGETS += $(obj)eabi_compat.o +endif + +all: $(TARGETS) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +$(LIBGCC): $(obj).depend $(LGOBJS) + $(AR) $(ARFLAGS) $@ $(LGOBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/arm/lib/_ashldi3.S b/arch/arm/lib/_ashldi3.S new file mode 100644 index 00000000000..834ddc25426 --- /dev/null +++ b/arch/arm/lib/_ashldi3.S @@ -0,0 +1,48 @@ +/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005 + Free Software Foundation, Inc. + +This file 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, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + + +#ifdef __ARMEB__ +#define al r1 +#define ah r0 +#else +#define al r0 +#define ah r1 +#endif + +.globl __ashldi3 +.globl __aeabi_llsl +__ashldi3: +__aeabi_llsl: + + subs r3, r2, #32 + rsb ip, r2, #32 + movmi ah, ah, lsl r2 + movpl ah, al, lsl r3 + orrmi ah, ah, al, lsr ip + mov al, al, lsl r2 + mov pc, lr diff --git a/arch/arm/lib/_ashrdi3.S b/arch/arm/lib/_ashrdi3.S new file mode 100644 index 00000000000..671ac87a2b5 --- /dev/null +++ b/arch/arm/lib/_ashrdi3.S @@ -0,0 +1,48 @@ +/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005 + Free Software Foundation, Inc. + +This file 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, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + + +#ifdef __ARMEB__ +#define al r1 +#define ah r0 +#else +#define al r0 +#define ah r1 +#endif + +.globl __ashrdi3 +.globl __aeabi_lasr +__ashrdi3: +__aeabi_lasr: + + subs r3, r2, #32 + rsb ip, r2, #32 + movmi al, al, lsr r2 + movpl al, ah, asr r3 + orrmi al, al, ah, lsl ip + mov ah, ah, asr r2 + mov pc, lr diff --git a/arch/arm/lib/_divsi3.S b/arch/arm/lib/_divsi3.S new file mode 100644 index 00000000000..cfbadb2ab99 --- /dev/null +++ b/arch/arm/lib/_divsi3.S @@ -0,0 +1,142 @@ + +.macro ARM_DIV_BODY dividend, divisor, result, curbit + +#if __LINUX_ARM_ARCH__ >= 5 + + clz \curbit, \divisor + clz \result, \dividend + sub \result, \curbit, \result + mov \curbit, #1 + mov \divisor, \divisor, lsl \result + mov \curbit, \curbit, lsl \result + mov \result, #0 + +#else + + @ Initially shift the divisor left 3 bits if possible, + @ set curbit accordingly. This allows for curbit to be located + @ at the left end of each 4 bit nibbles in the division loop + @ to save one loop in most cases. + tst \divisor, #0xe0000000 + moveq \divisor, \divisor, lsl #3 + moveq \curbit, #8 + movne \curbit, #1 + + @ Unless the divisor is very big, shift it up in multiples of + @ four bits, since this is the amount of unwinding in the main + @ division loop. Continue shifting until the divisor is + @ larger than the dividend. +1: cmp \divisor, #0x10000000 + cmplo \divisor, \dividend + movlo \divisor, \divisor, lsl #4 + movlo \curbit, \curbit, lsl #4 + blo 1b + + @ For very big divisors, we must shift it a bit at a time, or + @ we will be in danger of overflowing. +1: cmp \divisor, #0x80000000 + cmplo \divisor, \dividend + movlo \divisor, \divisor, lsl #1 + movlo \curbit, \curbit, lsl #1 + blo 1b + + mov \result, #0 + +#endif + + @ Division loop +1: cmp \dividend, \divisor + subhs \dividend, \dividend, \divisor + orrhs \result, \result, \curbit + cmp \dividend, \divisor, lsr #1 + subhs \dividend, \dividend, \divisor, lsr #1 + orrhs \result, \result, \curbit, lsr #1 + cmp \dividend, \divisor, lsr #2 + subhs \dividend, \dividend, \divisor, lsr #2 + orrhs \result, \result, \curbit, lsr #2 + cmp \dividend, \divisor, lsr #3 + subhs \dividend, \dividend, \divisor, lsr #3 + orrhs \result, \result, \curbit, lsr #3 + cmp \dividend, #0 @ Early termination? + movnes \curbit, \curbit, lsr #4 @ No, any more bits to do? + movne \divisor, \divisor, lsr #4 + bne 1b + +.endm + +.macro ARM_DIV2_ORDER divisor, order + +#if __LINUX_ARM_ARCH__ >= 5 + + clz \order, \divisor + rsb \order, \order, #31 + +#else + + cmp \divisor, #(1 << 16) + movhs \divisor, \divisor, lsr #16 + movhs \order, #16 + movlo \order, #0 + + cmp \divisor, #(1 << 8) + movhs \divisor, \divisor, lsr #8 + addhs \order, \order, #8 + + cmp \divisor, #(1 << 4) + movhs \divisor, \divisor, lsr #4 + addhs \order, \order, #4 + + cmp \divisor, #(1 << 2) + addhi \order, \order, #3 + addls \order, \order, \divisor, lsr #1 + +#endif + +.endm + + .align 5 +.globl __divsi3 +.globl __aeabi_idiv +__divsi3: +__aeabi_idiv: + cmp r1, #0 + eor ip, r0, r1 @ save the sign of the result. + beq Ldiv0 + rsbmi r1, r1, #0 @ loops below use unsigned. + subs r2, r1, #1 @ division by 1 or -1 ? + beq 10f + movs r3, r0 + rsbmi r3, r0, #0 @ positive dividend value + cmp r3, r1 + bls 11f + tst r1, r2 @ divisor is power of 2 ? + beq 12f + + ARM_DIV_BODY r3, r1, r0, r2 + + cmp ip, #0 + rsbmi r0, r0, #0 + mov pc, lr + +10: teq ip, r0 @ same sign ? + rsbmi r0, r0, #0 + mov pc, lr + +11: movlo r0, #0 + moveq r0, ip, asr #31 + orreq r0, r0, #1 + mov pc, lr + +12: ARM_DIV2_ORDER r1, r2 + + cmp ip, #0 + mov r0, r3, lsr r2 + rsbmi r0, r0, #0 + mov pc, lr + +Ldiv0: + + str lr, [sp, #-4]! + bl __div0 + mov r0, #0 @ About as wrong as it could be. + ldr pc, [sp], #4 diff --git a/arch/arm/lib/_lshrdi3.S b/arch/arm/lib/_lshrdi3.S new file mode 100644 index 00000000000..e7fa7993878 --- /dev/null +++ b/arch/arm/lib/_lshrdi3.S @@ -0,0 +1,48 @@ +/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005 + Free Software Foundation, Inc. + +This file 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, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + + +#ifdef __ARMEB__ +#define al r1 +#define ah r0 +#else +#define al r0 +#define ah r1 +#endif + +.globl __lshrdi3 +.globl __aeabi_llsr +__lshrdi3: +__aeabi_llsr: + + subs r3, r2, #32 + rsb ip, r2, #32 + movmi al, al, lsr r2 + movpl al, ah, lsr r3 + orrmi al, al, ah, lsl ip + mov ah, ah, lsr r2 + mov pc, lr diff --git a/arch/arm/lib/_modsi3.S b/arch/arm/lib/_modsi3.S new file mode 100644 index 00000000000..539c5849970 --- /dev/null +++ b/arch/arm/lib/_modsi3.S @@ -0,0 +1,99 @@ + +.macro ARM_MOD_BODY dividend, divisor, order, spare + +#if __LINUX_ARM_ARCH__ >= 5 + + clz \order, \divisor + clz \spare, \dividend + sub \order, \order, \spare + mov \divisor, \divisor, lsl \order + +#else + + mov \order, #0 + + @ Unless the divisor is very big, shift it up in multiples of + @ four bits, since this is the amount of unwinding in the main + @ division loop. Continue shifting until the divisor is + @ larger than the dividend. +1: cmp \divisor, #0x10000000 + cmplo \divisor, \dividend + movlo \divisor, \divisor, lsl #4 + addlo \order, \order, #4 + blo 1b + + @ For very big divisors, we must shift it a bit at a time, or + @ we will be in danger of overflowing. +1: cmp \divisor, #0x80000000 + cmplo \divisor, \dividend + movlo \divisor, \divisor, lsl #1 + addlo \order, \order, #1 + blo 1b + +#endif + + @ Perform all needed substractions to keep only the reminder. + @ Do comparisons in batch of 4 first. + subs \order, \order, #3 @ yes, 3 is intended here + blt 2f + +1: cmp \dividend, \divisor + subhs \dividend, \dividend, \divisor + cmp \dividend, \divisor, lsr #1 + subhs \dividend, \dividend, \divisor, lsr #1 + cmp \dividend, \divisor, lsr #2 + subhs \dividend, \dividend, \divisor, lsr #2 + cmp \dividend, \divisor, lsr #3 + subhs \dividend, \dividend, \divisor, lsr #3 + cmp \dividend, #1 + mov \divisor, \divisor, lsr #4 + subges \order, \order, #4 + bge 1b + + tst \order, #3 + teqne \dividend, #0 + beq 5f + + @ Either 1, 2 or 3 comparison/substractions are left. +2: cmn \order, #2 + blt 4f + beq 3f + cmp \dividend, \divisor + subhs \dividend, \dividend, \divisor + mov \divisor, \divisor, lsr #1 +3: cmp \dividend, \divisor + subhs \dividend, \dividend, \divisor + mov \divisor, \divisor, lsr #1 +4: cmp \dividend, \divisor + subhs \dividend, \dividend, \divisor +5: +.endm + + .align 5 +.globl __modsi3 +__modsi3: + cmp r1, #0 + beq Ldiv0 + rsbmi r1, r1, #0 @ loops below use unsigned. + movs ip, r0 @ preserve sign of dividend + rsbmi r0, r0, #0 @ if negative make positive + subs r2, r1, #1 @ compare divisor with 1 + cmpne r0, r1 @ compare dividend with divisor + moveq r0, #0 + tsthi r1, r2 @ see if divisor is power of 2 + andeq r0, r0, r2 + bls 10f + + ARM_MOD_BODY r0, r1, r2, r3 + +10: cmp ip, #0 + rsbmi r0, r0, #0 + mov pc, lr + + +Ldiv0: + + str lr, [sp, #-4]! + bl __div0 + mov r0, #0 @ About as wrong as it could be. + ldr pc, [sp], #4 diff --git a/arch/arm/lib/_udivsi3.S b/arch/arm/lib/_udivsi3.S new file mode 100644 index 00000000000..13098026104 --- /dev/null +++ b/arch/arm/lib/_udivsi3.S @@ -0,0 +1,93 @@ +/* # 1 "libgcc1.S" */ +@ libgcc1 routines for ARM cpu. +@ Division routines, written by Richard Earnshaw, (rearnsha@armltd.co.uk) +dividend .req r0 +divisor .req r1 +result .req r2 +curbit .req r3 +/* ip .req r12 */ +/* sp .req r13 */ +/* lr .req r14 */ +/* pc .req r15 */ + .text + .globl __udivsi3 + .type __udivsi3 ,function + .globl __aeabi_uidiv + .type __aeabi_uidiv ,function + .align 0 + __udivsi3: + __aeabi_uidiv: + cmp divisor, #0 + beq Ldiv0 + mov curbit, #1 + mov result, #0 + cmp dividend, divisor + bcc Lgot_result +Loop1: + @ Unless the divisor is very big, shift it up in multiples of + @ four bits, since this is the amount of unwinding in the main + @ division loop. Continue shifting until the divisor is + @ larger than the dividend. + cmp divisor, #0x10000000 + cmpcc divisor, dividend + movcc divisor, divisor, lsl #4 + movcc curbit, curbit, lsl #4 + bcc Loop1 +Lbignum: + @ For very big divisors, we must shift it a bit at a time, or + @ we will be in danger of overflowing. + cmp divisor, #0x80000000 + cmpcc divisor, dividend + movcc divisor, divisor, lsl #1 + movcc curbit, curbit, lsl #1 + bcc Lbignum +Loop3: + @ Test for possible subtractions, and note which bits + @ are done in the result. On the final pass, this may subtract + @ too much from the dividend, but the result will be ok, since the + @ "bit" will have been shifted out at the bottom. + cmp dividend, divisor + subcs dividend, dividend, divisor + orrcs result, result, curbit + cmp dividend, divisor, lsr #1 + subcs dividend, dividend, divisor, lsr #1 + orrcs result, result, curbit, lsr #1 + cmp dividend, divisor, lsr #2 + subcs dividend, dividend, divisor, lsr #2 + orrcs result, result, curbit, lsr #2 + cmp dividend, divisor, lsr #3 + subcs dividend, dividend, divisor, lsr #3 + orrcs result, result, curbit, lsr #3 + cmp dividend, #0 @ Early termination? + movnes curbit, curbit, lsr #4 @ No, any more bits to do? + movne divisor, divisor, lsr #4 + bne Loop3 +Lgot_result: + mov r0, result + mov pc, lr +Ldiv0: + str lr, [sp, #-4]! + bl __div0 (PLT) + mov r0, #0 @ about as wrong as it could be + ldmia sp!, {pc} + .size __udivsi3 , . - __udivsi3 + +.globl __aeabi_uidivmod +__aeabi_uidivmod: + + stmfd sp!, {r0, r1, ip, lr} + bl __aeabi_uidiv + ldmfd sp!, {r1, r2, ip, lr} + mul r3, r0, r2 + sub r1, r1, r3 + mov pc, lr + +.globl __aeabi_idivmod +__aeabi_idivmod: + + stmfd sp!, {r0, r1, ip, lr} + bl __aeabi_idiv + ldmfd sp!, {r1, r2, ip, lr} + mul r3, r0, r2 + sub r1, r1, r3 + mov pc, lr diff --git a/arch/arm/lib/_umodsi3.S b/arch/arm/lib/_umodsi3.S new file mode 100644 index 00000000000..8465ef09d23 --- /dev/null +++ b/arch/arm/lib/_umodsi3.S @@ -0,0 +1,88 @@ +/* # 1 "libgcc1.S" */ +@ libgcc1 routines for ARM cpu. +@ Division routines, written by Richard Earnshaw, (rearnsha@armltd.co.uk) +/* # 145 "libgcc1.S" */ +dividend .req r0 +divisor .req r1 +overdone .req r2 +curbit .req r3 +/* ip .req r12 */ +/* sp .req r13 */ +/* lr .req r14 */ +/* pc .req r15 */ + .text + .globl __umodsi3 + .type __umodsi3 ,function + .align 0 + __umodsi3 : + cmp divisor, #0 + beq Ldiv0 + mov curbit, #1 + cmp dividend, divisor + movcc pc, lr +Loop1: + @ Unless the divisor is very big, shift it up in multiples of + @ four bits, since this is the amount of unwinding in the main + @ division loop. Continue shifting until the divisor is + @ larger than the dividend. + cmp divisor, #0x10000000 + cmpcc divisor, dividend + movcc divisor, divisor, lsl #4 + movcc curbit, curbit, lsl #4 + bcc Loop1 +Lbignum: + @ For very big divisors, we must shift it a bit at a time, or + @ we will be in danger of overflowing. + cmp divisor, #0x80000000 + cmpcc divisor, dividend + movcc divisor, divisor, lsl #1 + movcc curbit, curbit, lsl #1 + bcc Lbignum +Loop3: + @ Test for possible subtractions. On the final pass, this may + @ subtract too much from the dividend, so keep track of which + @ subtractions are done, we can fix them up afterwards... + mov overdone, #0 + cmp dividend, divisor + subcs dividend, dividend, divisor + cmp dividend, divisor, lsr #1 + subcs dividend, dividend, divisor, lsr #1 + orrcs overdone, overdone, curbit, ror #1 + cmp dividend, divisor, lsr #2 + subcs dividend, dividend, divisor, lsr #2 + orrcs overdone, overdone, curbit, ror #2 + cmp dividend, divisor, lsr #3 + subcs dividend, dividend, divisor, lsr #3 + orrcs overdone, overdone, curbit, ror #3 + mov ip, curbit + cmp dividend, #0 @ Early termination? + movnes curbit, curbit, lsr #4 @ No, any more bits to do? + movne divisor, divisor, lsr #4 + bne Loop3 + @ Any subtractions that we should not have done will be recorded in + @ the top three bits of "overdone". Exactly which were not needed + @ are governed by the position of the bit, stored in ip. + @ If we terminated early, because dividend became zero, + @ then none of the below will match, since the bit in ip will not be + @ in the bottom nibble. + ands overdone, overdone, #0xe0000000 + moveq pc, lr @ No fixups needed + tst overdone, ip, ror #3 + addne dividend, dividend, divisor, lsr #3 + tst overdone, ip, ror #2 + addne dividend, dividend, divisor, lsr #2 + tst overdone, ip, ror #1 + addne dividend, dividend, divisor, lsr #1 + mov pc, lr +Ldiv0: + str lr, [sp, #-4]! + bl __div0 (PLT) + mov r0, #0 @ about as wrong as it could be + ldmia sp!, {pc} + .size __umodsi3 , . - __umodsi3 +/* # 320 "libgcc1.S" */ +/* # 421 "libgcc1.S" */ +/* # 433 "libgcc1.S" */ +/* # 456 "libgcc1.S" */ +/* # 500 "libgcc1.S" */ +/* # 580 "libgcc1.S" */ diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c new file mode 100644 index 00000000000..f5660a985b7 --- /dev/null +++ b/arch/arm/lib/board.c @@ -0,0 +1,452 @@ +/* + * (C) Copyright 2002-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * To match the U-Boot user interface on ARM platforms to the U-Boot + * standard (as on PPC platforms), some messages with debug character + * are removed from the default U-Boot build. + * + * Define DEBUG here if you want additional info as shown below + * printed upon startup: + * + * U-Boot code: 00F00000 -> 00F3C774 BSS: -> 00FC3274 + * IRQ Stack: 00ebff7c + * FIQ Stack: 00ebef7c + */ + +#include <common.h> +#include <command.h> +#include <malloc.h> +#include <stdio_dev.h> +#include <timestamp.h> +#include <version.h> +#include <net.h> +#include <serial.h> +#include <nand.h> +#include <onenand_uboot.h> +#include <mmc.h> + +#ifdef CONFIG_BITBANGMII +#include <miiphy.h> +#endif + +#ifdef CONFIG_DRIVER_SMC91111 +#include "../drivers/net/smc91111.h" +#endif +#ifdef CONFIG_DRIVER_LAN91C96 +#include "../drivers/net/lan91c96.h" +#endif + +DECLARE_GLOBAL_DATA_PTR; + +ulong monitor_flash_len; + +#ifdef CONFIG_HAS_DATAFLASH +extern int AT91F_DataflashInit(void); +extern void dataflash_print_info(void); +#endif + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +const char version_string[] = + U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"CONFIG_IDENT_STRING; + +#ifdef CONFIG_DRIVER_RTL8019 +extern void rtl8019_get_enetaddr (uchar * addr); +#endif + +#if defined(CONFIG_HARD_I2C) || \ + defined(CONFIG_SOFT_I2C) +#include <i2c.h> +#endif + + +/************************************************************************ + * Coloured LED functionality + ************************************************************************ + * May be supplied by boards if desired + */ +void inline __coloured_LED_init (void) {} +void coloured_LED_init (void) __attribute__((weak, alias("__coloured_LED_init"))); +void inline __red_LED_on (void) {} +void red_LED_on (void) __attribute__((weak, alias("__red_LED_on"))); +void inline __red_LED_off(void) {} +void red_LED_off(void) __attribute__((weak, alias("__red_LED_off"))); +void inline __green_LED_on(void) {} +void green_LED_on(void) __attribute__((weak, alias("__green_LED_on"))); +void inline __green_LED_off(void) {} +void green_LED_off(void) __attribute__((weak, alias("__green_LED_off"))); +void inline __yellow_LED_on(void) {} +void yellow_LED_on(void) __attribute__((weak, alias("__yellow_LED_on"))); +void inline __yellow_LED_off(void) {} +void yellow_LED_off(void) __attribute__((weak, alias("__yellow_LED_off"))); +void inline __blue_LED_on(void) {} +void blue_LED_on(void) __attribute__((weak, alias("__blue_LED_on"))); +void inline __blue_LED_off(void) {} +void blue_LED_off(void) __attribute__((weak, alias("__blue_LED_off"))); + +/************************************************************************ + * Init Utilities * + ************************************************************************ + * Some of this code should be moved into the core functions, + * or dropped completely, + * but let's get it working (again) first... + */ + +#if defined(CONFIG_ARM_DCC) && !defined(CONFIG_BAUDRATE) +#define CONFIG_BAUDRATE 115200 +#endif +static int init_baudrate (void) +{ + char tmp[64]; /* long enough for environment variables */ + int i = getenv_r ("baudrate", tmp, sizeof (tmp)); + gd->bd->bi_baudrate = gd->baudrate = (i > 0) + ? (int) simple_strtoul (tmp, NULL, 10) + : CONFIG_BAUDRATE; + + return (0); +} + +static int display_banner (void) +{ + printf ("\n\n%s\n\n", version_string); + debug ("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n", + _armboot_start, _bss_start, _bss_end); +#ifdef CONFIG_MODEM_SUPPORT + debug ("Modem Support enabled\n"); +#endif +#ifdef CONFIG_USE_IRQ + debug ("IRQ Stack: %08lx\n", IRQ_STACK_START); + debug ("FIQ Stack: %08lx\n", FIQ_STACK_START); +#endif + + return (0); +} + +/* + * WARNING: this code looks "cleaner" than the PowerPC version, but + * has the disadvantage that you either get nothing, or everything. + * On PowerPC, you might see "DRAM: " before the system hangs - which + * gives a simple yet clear indication which part of the + * initialization if failing. + */ +static int display_dram_config (void) +{ + int i; + +#ifdef DEBUG + puts ("RAM Configuration:\n"); + + for(i=0; i<CONFIG_NR_DRAM_BANKS; i++) { + printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); + print_size (gd->bd->bi_dram[i].size, "\n"); + } +#else + ulong size = 0; + + for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) { + size += gd->bd->bi_dram[i].size; + } + puts("DRAM: "); + print_size(size, "\n"); +#endif + + return (0); +} + +#ifndef CONFIG_SYS_NO_FLASH +static void display_flash_config (ulong size) +{ + puts ("Flash: "); + print_size (size, "\n"); +} +#endif /* CONFIG_SYS_NO_FLASH */ + +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) +static int init_func_i2c (void) +{ + puts ("I2C: "); + i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + puts ("ready\n"); + return (0); +} +#endif + +#if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI) +#include <pci.h> +static int arm_pci_init(void) +{ + pci_init(); + return 0; +} +#endif /* CONFIG_CMD_PCI || CONFIG_PCI */ + +/* + * Breathe some life into the board... + * + * Initialize a serial port as console, and carry out some hardware + * tests. + * + * The first part of initialization is running from Flash memory; + * its main purpose is to initialize the RAM so that we + * can relocate the monitor code to RAM. + */ + +/* + * All attempts to come up with a "common" initialization sequence + * that works for all boards and architectures failed: some of the + * requirements are just _too_ different. To get rid of the resulting + * mess of board dependent #ifdef'ed code we now make the whole + * initialization sequence configurable to the user. + * + * The requirements for any new initalization function is simple: it + * receives a pointer to the "global data" structure as it's only + * argument, and returns an integer return code, where 0 means + * "continue" and != 0 means "fatal error, hang the system". + */ +typedef int (init_fnc_t) (void); + +int print_cpuinfo (void); + +init_fnc_t *init_sequence[] = { +#if defined(CONFIG_ARCH_CPU_INIT) + arch_cpu_init, /* basic arch cpu dependent setup */ +#endif + board_init, /* basic board dependent setup */ +#if defined(CONFIG_USE_IRQ) + interrupt_init, /* set up exceptions */ +#endif + timer_init, /* initialize timer */ +#ifdef CONFIG_FSL_ESDHC + get_clocks, +#endif + env_init, /* initialize environment */ + init_baudrate, /* initialze baudrate settings */ + serial_init, /* serial communications setup */ + console_init_f, /* stage 1 init of console */ + display_banner, /* say that we are here */ +#if defined(CONFIG_DISPLAY_CPUINFO) + print_cpuinfo, /* display cpu info (and speed) */ +#endif +#if defined(CONFIG_DISPLAY_BOARDINFO) + checkboard, /* display board info */ +#endif +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + init_func_i2c, +#endif + dram_init, /* configure available RAM banks */ +#if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI) + arm_pci_init, +#endif + display_dram_config, + NULL, +}; + +void start_armboot (void) +{ + init_fnc_t **init_fnc_ptr; + char *s; +#if defined(CONFIG_VFD) || defined(CONFIG_LCD) + unsigned long addr; +#endif + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t)); + /* compiler optimization barrier needed for GCC >= 3.4 */ + __asm__ __volatile__("": : :"memory"); + + memset ((void*)gd, 0, sizeof (gd_t)); + gd->bd = (bd_t*)((char*)gd - sizeof(bd_t)); + memset (gd->bd, 0, sizeof (bd_t)); + + gd->flags |= GD_FLG_RELOC; + + monitor_flash_len = _bss_start - _armboot_start; + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + if ((*init_fnc_ptr)() != 0) { + hang (); + } + } + + /* armboot_start is defined in the board-specific linker script */ + mem_malloc_init (_armboot_start - CONFIG_SYS_MALLOC_LEN, + CONFIG_SYS_MALLOC_LEN); + +#ifndef CONFIG_SYS_NO_FLASH + /* configure available FLASH banks */ + display_flash_config (flash_init ()); +#endif /* CONFIG_SYS_NO_FLASH */ + +#ifdef CONFIG_VFD +# ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +# endif + /* + * reserve memory for VFD display (always full pages) + */ + /* bss_end is defined in the board-specific linker script */ + addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + vfd_setmem (addr); + gd->fb_base = addr; +#endif /* CONFIG_VFD */ + +#ifdef CONFIG_LCD + /* board init may have inited fb_base */ + if (!gd->fb_base) { +# ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +# endif + /* + * reserve memory for LCD display (always full pages) + */ + /* bss_end is defined in the board-specific linker script */ + addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + lcd_setmem (addr); + gd->fb_base = addr; + } +#endif /* CONFIG_LCD */ + +#if defined(CONFIG_CMD_NAND) + puts ("NAND: "); + nand_init(); /* go init the NAND */ +#endif + +#if defined(CONFIG_CMD_ONENAND) + onenand_init(); +#endif + +#ifdef CONFIG_HAS_DATAFLASH + AT91F_DataflashInit(); + dataflash_print_info(); +#endif + + /* initialize environment */ + env_relocate (); + +#ifdef CONFIG_VFD + /* must do this after the framebuffer is allocated */ + drv_vfd_init(); +#endif /* CONFIG_VFD */ + +#ifdef CONFIG_SERIAL_MULTI + serial_initialize(); +#endif + + /* IP Address */ + gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); + + stdio_init (); /* get the devices list going. */ + + jumptable_init (); + +#if defined(CONFIG_API) + /* Initialize API */ + api_init (); +#endif + + console_init_r (); /* fully init console as a device */ + +#if defined(CONFIG_ARCH_MISC_INIT) + /* miscellaneous arch dependent initialisations */ + arch_misc_init (); +#endif +#if defined(CONFIG_MISC_INIT_R) + /* miscellaneous platform dependent initialisations */ + misc_init_r (); +#endif + + /* enable exceptions */ + enable_interrupts (); + + /* Perform network card initialisation if necessary */ +#ifdef CONFIG_DRIVER_TI_EMAC + /* XXX: this needs to be moved to board init */ +extern void davinci_eth_set_mac_addr (const u_int8_t *addr); + if (getenv ("ethaddr")) { + uchar enetaddr[6]; + eth_getenv_enetaddr("ethaddr", enetaddr); + davinci_eth_set_mac_addr(enetaddr); + } +#endif + +#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) + /* XXX: this needs to be moved to board init */ + if (getenv ("ethaddr")) { + uchar enetaddr[6]; + eth_getenv_enetaddr("ethaddr", enetaddr); + smc_set_mac_addr(enetaddr); + } +#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ + + /* Initialize from environment */ + if ((s = getenv ("loadaddr")) != NULL) { + load_addr = simple_strtoul (s, NULL, 16); + } +#if defined(CONFIG_CMD_NET) + if ((s = getenv ("bootfile")) != NULL) { + copy_filename (BootFile, s, sizeof (BootFile)); + } +#endif + +#ifdef BOARD_LATE_INIT + board_late_init (); +#endif + +#ifdef CONFIG_GENERIC_MMC + puts ("MMC: "); + mmc_initialize (gd->bd); +#endif + +#ifdef CONFIG_BITBANGMII + bb_miiphy_init(); +#endif +#if defined(CONFIG_CMD_NET) +#if defined(CONFIG_NET_MULTI) + puts ("Net: "); +#endif + eth_initialize(gd->bd); +#if defined(CONFIG_RESET_PHY_R) + debug ("Reset Ethernet PHY\n"); + reset_phy(); +#endif +#endif + /* main_loop() can return to retry autoboot, if so just run it again. */ + for (;;) { + main_loop (); + } + + /* NOTREACHED - no way out of command loop except booting */ +} + +void hang (void) +{ + puts ("### ERROR ### Please RESET the board ###\n"); + for (;;); +} diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c new file mode 100644 index 00000000000..128b7e313cd --- /dev/null +++ b/arch/arm/lib/bootm.c @@ -0,0 +1,279 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <common.h> +#include <command.h> +#include <image.h> +#include <u-boot/zlib.h> +#include <asm/byteorder.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined (CONFIG_SETUP_MEMORY_TAGS) || \ + defined (CONFIG_CMDLINE_TAG) || \ + defined (CONFIG_INITRD_TAG) || \ + defined (CONFIG_SERIAL_TAG) || \ + defined (CONFIG_REVISION_TAG) || \ + defined (CONFIG_VFD) || \ + defined (CONFIG_LCD) +static void setup_start_tag (bd_t *bd); + +# ifdef CONFIG_SETUP_MEMORY_TAGS +static void setup_memory_tags (bd_t *bd); +# endif +static void setup_commandline_tag (bd_t *bd, char *commandline); + +# ifdef CONFIG_INITRD_TAG +static void setup_initrd_tag (bd_t *bd, ulong initrd_start, + ulong initrd_end); +# endif +static void setup_end_tag (bd_t *bd); + +# if defined (CONFIG_VFD) || defined (CONFIG_LCD) +static void setup_videolfb_tag (gd_t *gd); +# endif + +static struct tag *params; +#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ + +int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) +{ + bd_t *bd = gd->bd; + char *s; + int machid = bd->bi_arch_number; + void (*theKernel)(int zero, int arch, uint params); + +#ifdef CONFIG_CMDLINE_TAG + char *commandline = getenv ("bootargs"); +#endif + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + + theKernel = (void (*)(int, int, uint))images->ep; + + s = getenv ("machid"); + if (s) { + machid = simple_strtoul (s, NULL, 16); + printf ("Using machid 0x%x from environment\n", machid); + } + + show_boot_progress (15); + + debug ("## Transferring control to Linux (at address %08lx) ...\n", + (ulong) theKernel); + +#if defined (CONFIG_SETUP_MEMORY_TAGS) || \ + defined (CONFIG_CMDLINE_TAG) || \ + defined (CONFIG_INITRD_TAG) || \ + defined (CONFIG_SERIAL_TAG) || \ + defined (CONFIG_REVISION_TAG) || \ + defined (CONFIG_LCD) || \ + defined (CONFIG_VFD) + setup_start_tag (bd); +#ifdef CONFIG_SERIAL_TAG + setup_serial_tag (¶ms); +#endif +#ifdef CONFIG_REVISION_TAG + setup_revision_tag (¶ms); +#endif +#ifdef CONFIG_SETUP_MEMORY_TAGS + setup_memory_tags (bd); +#endif +#ifdef CONFIG_CMDLINE_TAG + setup_commandline_tag (bd, commandline); +#endif +#ifdef CONFIG_INITRD_TAG + if (images->rd_start && images->rd_end) + setup_initrd_tag (bd, images->rd_start, images->rd_end); +#endif +#if defined (CONFIG_VFD) || defined (CONFIG_LCD) + setup_videolfb_tag ((gd_t *) gd); +#endif + setup_end_tag (bd); +#endif + + /* we assume that the kernel is in place */ + printf ("\nStarting kernel ...\n\n"); + +#ifdef CONFIG_USB_DEVICE + { + extern void udc_disconnect (void); + udc_disconnect (); + } +#endif + + cleanup_before_linux (); + + theKernel (0, machid, bd->bi_boot_params); + /* does not return */ + + return 1; +} + + +#if defined (CONFIG_SETUP_MEMORY_TAGS) || \ + defined (CONFIG_CMDLINE_TAG) || \ + defined (CONFIG_INITRD_TAG) || \ + defined (CONFIG_SERIAL_TAG) || \ + defined (CONFIG_REVISION_TAG) || \ + defined (CONFIG_LCD) || \ + defined (CONFIG_VFD) +static void setup_start_tag (bd_t *bd) +{ + params = (struct tag *) bd->bi_boot_params; + + params->hdr.tag = ATAG_CORE; + params->hdr.size = tag_size (tag_core); + + params->u.core.flags = 0; + params->u.core.pagesize = 0; + params->u.core.rootdev = 0; + + params = tag_next (params); +} + + +#ifdef CONFIG_SETUP_MEMORY_TAGS +static void setup_memory_tags (bd_t *bd) +{ + int i; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + params->hdr.tag = ATAG_MEM; + params->hdr.size = tag_size (tag_mem32); + + params->u.mem.start = bd->bi_dram[i].start; + params->u.mem.size = bd->bi_dram[i].size; + + params = tag_next (params); + } +} +#endif /* CONFIG_SETUP_MEMORY_TAGS */ + + +static void setup_commandline_tag (bd_t *bd, char *commandline) +{ + char *p; + + if (!commandline) + return; + + /* eat leading white space */ + for (p = commandline; *p == ' '; p++); + + /* skip non-existent command lines so the kernel will still + * use its default command line. + */ + if (*p == '\0') + return; + + params->hdr.tag = ATAG_CMDLINE; + params->hdr.size = + (sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2; + + strcpy (params->u.cmdline.cmdline, p); + + params = tag_next (params); +} + + +#ifdef CONFIG_INITRD_TAG +static void setup_initrd_tag (bd_t *bd, ulong initrd_start, ulong initrd_end) +{ + /* an ATAG_INITRD node tells the kernel where the compressed + * ramdisk can be found. ATAG_RDIMG is a better name, actually. + */ + params->hdr.tag = ATAG_INITRD2; + params->hdr.size = tag_size (tag_initrd); + + params->u.initrd.start = initrd_start; + params->u.initrd.size = initrd_end - initrd_start; + + params = tag_next (params); +} +#endif /* CONFIG_INITRD_TAG */ + + +#if defined (CONFIG_VFD) || defined (CONFIG_LCD) +extern ulong calc_fbsize (void); +static void setup_videolfb_tag (gd_t *gd) +{ + /* An ATAG_VIDEOLFB node tells the kernel where and how large + * the framebuffer for video was allocated (among other things). + * Note that a _physical_ address is passed ! + * + * We only use it to pass the address and size, the other entries + * in the tag_videolfb are not of interest. + */ + params->hdr.tag = ATAG_VIDEOLFB; + params->hdr.size = tag_size (tag_videolfb); + + params->u.videolfb.lfb_base = (u32) gd->fb_base; + /* Fb size is calculated according to parameters for our panel + */ + params->u.videolfb.lfb_size = calc_fbsize(); + + params = tag_next (params); +} +#endif /* CONFIG_VFD || CONFIG_LCD */ + +#ifdef CONFIG_SERIAL_TAG +void setup_serial_tag (struct tag **tmp) +{ + struct tag *params = *tmp; + struct tag_serialnr serialnr; + void get_board_serial(struct tag_serialnr *serialnr); + + get_board_serial(&serialnr); + params->hdr.tag = ATAG_SERIAL; + params->hdr.size = tag_size (tag_serialnr); + params->u.serialnr.low = serialnr.low; + params->u.serialnr.high= serialnr.high; + params = tag_next (params); + *tmp = params; +} +#endif + +#ifdef CONFIG_REVISION_TAG +void setup_revision_tag(struct tag **in_params) +{ + u32 rev = 0; + u32 get_board_rev(void); + + rev = get_board_rev(); + params->hdr.tag = ATAG_REVISION; + params->hdr.size = tag_size (tag_revision); + params->u.revision.rev = rev; + params = tag_next (params); +} +#endif /* CONFIG_REVISION_TAG */ + + +static void setup_end_tag (bd_t *bd) +{ + params->hdr.tag = ATAG_NONE; + params->hdr.size = 0; +} + +#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c new file mode 100644 index 00000000000..62ed54fb4d6 --- /dev/null +++ b/arch/arm/lib/cache-cp15.c @@ -0,0 +1,120 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/system.h> + +#if !(defined(CONFIG_SYS_NO_ICACHE) && defined(CONFIG_SYS_NO_DCACHE)) +static void cp_delay (void) +{ + volatile int i; + + /* copro seems to need some delay between reading and writing */ + for (i = 0; i < 100; i++) + nop(); +} + +/* cache_bit must be either CR_I or CR_C */ +static void cache_enable(uint32_t cache_bit) +{ + uint32_t reg; + + reg = get_cr(); /* get control reg. */ + cp_delay(); + set_cr(reg | cache_bit); +} + +/* cache_bit must be either CR_I or CR_C */ +static void cache_disable(uint32_t cache_bit) +{ + uint32_t reg; + + reg = get_cr(); + cp_delay(); + set_cr(reg & ~cache_bit); +} +#endif + +#ifdef CONFIG_SYS_NO_ICACHE +void icache_enable (void) +{ + return; +} + +void icache_disable (void) +{ + return; +} + +int icache_status (void) +{ + return 0; /* always off */ +} +#else +void icache_enable(void) +{ + cache_enable(CR_I); +} + +void icache_disable(void) +{ + cache_disable(CR_I); +} + +int icache_status(void) +{ + return (get_cr() & CR_I) != 0; +} +#endif + +#ifdef CONFIG_SYS_NO_DCACHE +void dcache_enable (void) +{ + return; +} + +void dcache_disable (void) +{ + return; +} + +int dcache_status (void) +{ + return 0; /* always off */ +} +#else +void dcache_enable(void) +{ + cache_enable(CR_C); +} + +void dcache_disable(void) +{ + cache_disable(CR_C); +} + +int dcache_status(void) +{ + return (get_cr() & CR_C) != 0; +} +#endif diff --git a/arch/arm/lib/cache.c b/arch/arm/lib/cache.c new file mode 100644 index 00000000000..61ee9d3b13b --- /dev/null +++ b/arch/arm/lib/cache.c @@ -0,0 +1,36 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* for now: just dummy functions to satisfy the linker */ + +#include <common.h> + +void flush_cache (unsigned long dummy1, unsigned long dummy2) +{ +#ifdef CONFIG_OMAP2420 + void arm1136_cache_flush(void); + + arm1136_cache_flush(); +#endif + return; +} diff --git a/arch/arm/lib/div0.c b/arch/arm/lib/div0.c new file mode 100644 index 00000000000..6267bf16a5d --- /dev/null +++ b/arch/arm/lib/div0.c @@ -0,0 +1,30 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* Replacement (=dummy) for GNU/Linux division-by zero handler */ +void __div0 (void) +{ + extern void hang (void); + + hang(); +} diff --git a/arch/arm/lib/eabi_compat.c b/arch/arm/lib/eabi_compat.c new file mode 100644 index 00000000000..86eacf1b0e9 --- /dev/null +++ b/arch/arm/lib/eabi_compat.c @@ -0,0 +1,18 @@ +/* + * Utility functions needed for (some) EABI conformant tool chains. + * + * (C) Copyright 2009 Wolfgang Denk <wd@denx.de> + * + * 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 <common.h> + +int raise (int signum) +{ + printf("raise: Signal # %d caught\n", signum); + return 0; +} diff --git a/arch/arm/lib/interrupts.c b/arch/arm/lib/interrupts.c new file mode 100644 index 00000000000..1f2b815611c --- /dev/null +++ b/arch/arm/lib/interrupts.c @@ -0,0 +1,187 @@ +/* + * (C) Copyright 2003 + * Texas Instruments <www.ti.com> + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke <azu@sysgo.de> + * + * (C) Copyright 2002-2004 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * (C) Copyright 2004 + * Philippe Robin, ARM Ltd. <philippe.robin@arm.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/proc-armv/ptrace.h> + +#ifdef CONFIG_USE_IRQ +DECLARE_GLOBAL_DATA_PTR; + +int interrupt_init (void) +{ + /* + * setup up stacks if necessary + */ + IRQ_STACK_START = _armboot_start - CONFIG_SYS_MALLOC_LEN - CONFIG_SYS_GBL_DATA_SIZE - 4; + FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ; + + return arch_interrupt_init(); +} + +/* enable IRQ interrupts */ +void enable_interrupts (void) +{ + unsigned long temp; + __asm__ __volatile__("mrs %0, cpsr\n" + "bic %0, %0, #0x80\n" + "msr cpsr_c, %0" + : "=r" (temp) + : + : "memory"); +} + + +/* + * disable IRQ/FIQ interrupts + * returns true if interrupts had been enabled before we disabled them + */ +int disable_interrupts (void) +{ + unsigned long old,temp; + __asm__ __volatile__("mrs %0, cpsr\n" + "orr %1, %0, #0xc0\n" + "msr cpsr_c, %1" + : "=r" (old), "=r" (temp) + : + : "memory"); + return (old & 0x80) == 0; +} +#else +void enable_interrupts (void) +{ + return; +} +int disable_interrupts (void) +{ + return 0; +} +#endif + + +void bad_mode (void) +{ + panic ("Resetting CPU ...\n"); + reset_cpu (0); +} + +void show_regs (struct pt_regs *regs) +{ + unsigned long flags; + const char *processor_modes[] = { + "USER_26", "FIQ_26", "IRQ_26", "SVC_26", + "UK4_26", "UK5_26", "UK6_26", "UK7_26", + "UK8_26", "UK9_26", "UK10_26", "UK11_26", + "UK12_26", "UK13_26", "UK14_26", "UK15_26", + "USER_32", "FIQ_32", "IRQ_32", "SVC_32", + "UK4_32", "UK5_32", "UK6_32", "ABT_32", + "UK8_32", "UK9_32", "UK10_32", "UND_32", + "UK12_32", "UK13_32", "UK14_32", "SYS_32", + }; + + flags = condition_codes (regs); + + printf ("pc : [<%08lx>] lr : [<%08lx>]\n" + "sp : %08lx ip : %08lx fp : %08lx\n", + instruction_pointer (regs), + regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp); + printf ("r10: %08lx r9 : %08lx r8 : %08lx\n", + regs->ARM_r10, regs->ARM_r9, regs->ARM_r8); + printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", + regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4); + printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", + regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0); + printf ("Flags: %c%c%c%c", + flags & CC_N_BIT ? 'N' : 'n', + flags & CC_Z_BIT ? 'Z' : 'z', + flags & CC_C_BIT ? 'C' : 'c', flags & CC_V_BIT ? 'V' : 'v'); + printf (" IRQs %s FIQs %s Mode %s%s\n", + interrupts_enabled (regs) ? "on" : "off", + fast_interrupts_enabled (regs) ? "on" : "off", + processor_modes[processor_mode (regs)], + thumb_mode (regs) ? " (T)" : ""); +} + +void do_undefined_instruction (struct pt_regs *pt_regs) +{ + printf ("undefined instruction\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_software_interrupt (struct pt_regs *pt_regs) +{ + printf ("software interrupt\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_prefetch_abort (struct pt_regs *pt_regs) +{ + printf ("prefetch abort\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_data_abort (struct pt_regs *pt_regs) +{ + printf ("data abort\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_not_used (struct pt_regs *pt_regs) +{ + printf ("not used\n"); + show_regs (pt_regs); + bad_mode (); +} + +void do_fiq (struct pt_regs *pt_regs) +{ + printf ("fast interrupt request\n"); + show_regs (pt_regs); + bad_mode (); +} + +#ifndef CONFIG_USE_IRQ +void do_irq (struct pt_regs *pt_regs) +{ + printf ("interrupt request\n"); + show_regs (pt_regs); + bad_mode (); +} +#endif diff --git a/arch/arm/lib/reset.c b/arch/arm/lib/reset.c new file mode 100644 index 00000000000..4fcedfa150b --- /dev/null +++ b/arch/arm/lib/reset.c @@ -0,0 +1,53 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke <azu@sysgo.de> + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * (C) Copyright 2004 + * DAVE Srl + * http://www.dave-tech.it + * http://www.wawnet.biz + * mailto:info@wawnet.biz + * + * (C) Copyright 2004 Texas Insturments + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + puts ("resetting ...\n"); + + udelay (50000); /* wait 50 ms */ + + disable_interrupts(); + reset_cpu(0); + + /*NOTREACHED*/ + return 0; +} |