aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorwdenk <wdenk>2003-12-06 19:49:23 +0000
committerwdenk <wdenk>2003-12-06 19:49:23 +0000
commita8c7c708a9e0051c6358718c53572a4681eaa22b (patch)
treeb560561c91725eb2f86289da61ee676787419e37
parentfa1399ed127c8be507bf182dc7d8d61a54938d79 (diff)
downloadu-boot-linaro-stable-a8c7c708a9e0051c6358718c53572a4681eaa22b.tar.gz
* Patch by Gleb Natapov, 19 Sep 2003:
Move most of the timer interrupt related PPC code to ppc_lib/interrupts.c * Patch by Anders Larsen, 17 Sep 2003: Bring ARM memory layout in sync with the documentation: stack and malloc-heap are now located _below_ the U-Boot code
-rw-r--r--CHANGELOG7
-rw-r--r--MAKEALL4
-rw-r--r--Makefile40
-rw-r--r--README19
-rw-r--r--board/at91rm9200dk/config.mk2
-rw-r--r--board/cogent/lcd.c14
-rw-r--r--board/cradle/config.mk2
-rw-r--r--board/dnp1110/config.mk4
-rw-r--r--board/ep7312/config.mk2
-rw-r--r--board/hymod/hymod.c22
-rw-r--r--board/impa7/config.mk2
-rw-r--r--board/lart/config.mk4
-rw-r--r--board/oxc/oxc.c6
-rw-r--r--board/shannon/config.mk4
-rw-r--r--board/trab/config.mk2
-rw-r--r--board/wepep250/wepep250.c9
-rw-r--r--common/Makefile3
-rw-r--r--common/xilinx.c1
-rw-r--r--cpu/74xx_7xx/interrupts.c109
-rw-r--r--cpu/arm720t/cpu.c15
-rw-r--r--cpu/arm720t/start.S48
-rw-r--r--cpu/arm920t/cpu.c16
-rw-r--r--cpu/arm920t/start.S50
-rw-r--r--cpu/arm925t/cpu.c16
-rw-r--r--cpu/arm925t/start.S53
-rw-r--r--cpu/arm926ejs/cpu.c16
-rw-r--r--cpu/arm926ejs/start.S53
-rw-r--r--cpu/at91rm9200/cpu.c18
-rw-r--r--cpu/at91rm9200/start.S22
-rw-r--r--cpu/mpc5xx/interrupts.c116
-rw-r--r--cpu/mpc5xxx/interrupts.c106
-rw-r--r--cpu/mpc824x/interrupts.c99
-rw-r--r--cpu/mpc8260/interrupts.c131
-rw-r--r--cpu/mpc8xx/interrupts.c117
-rw-r--r--cpu/ppc4xx/405gp_enet.c2
-rw-r--r--cpu/ppc4xx/interrupts.c95
-rw-r--r--cpu/pxa/cpu.c19
-rw-r--r--cpu/pxa/start.S42
-rw-r--r--cpu/sa1100/cpu.c14
-rw-r--r--cpu/sa1100/start.S48
-rw-r--r--doc/README.ARM-memory-map27
-rw-r--r--include/asm-arm/u-boot-arm.h1
-rw-r--r--include/configs/VCMA9.h1
-rw-r--r--include/configs/at91rm9200dk.h9
-rw-r--r--include/configs/cogent_mpc8260.h1
-rw-r--r--include/configs/cogent_mpc8xx.h1
-rw-r--r--include/configs/cradle.h1
-rw-r--r--include/configs/csb226.h1
-rw-r--r--include/configs/dnp1110.h1
-rw-r--r--include/configs/ep7312.h1
-rw-r--r--include/configs/impa7.h1
-rw-r--r--include/configs/innokom.h1
-rw-r--r--include/configs/lart.h1
-rw-r--r--include/configs/lubbock.h1
-rw-r--r--include/configs/lwmon.h1
-rw-r--r--include/configs/omap1510inn.h7
-rw-r--r--include/configs/omap1610inn.h14
-rw-r--r--include/configs/shannon.h1
-rw-r--r--include/configs/smdk2400.h1
-rw-r--r--include/configs/smdk2410.h1
-rw-r--r--include/configs/trab.h1
-rw-r--r--include/configs/wepep250.h7
-rw-r--r--lib_arm/board.c39
-rw-r--r--lib_ppc/Makefile2
-rw-r--r--lib_ppc/interrupts.c148
-rw-r--r--tools/Makefile2
66 files changed, 569 insertions, 1055 deletions
diff --git a/CHANGELOG b/CHANGELOG
index d64acbbd6..974ce5773 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,13 @@
Changes since U-Boot 1.0.0:
======================================================================
+* Patch by Gleb Natapov, 19 Sep 2003:
+ Move most of the timer interrupt related PPC code to ppc_lib/interrupts.c
+
+* Patch by Anders Larsen, 17 Sep 2003:
+ Bring ARM memory layout in sync with the documentation:
+ stack and malloc-heap are now located _below_ the U-Boot code
+
* Accelerate booting on TRAB board: read and check autoupdate image
headers first instead of always reading the whole images.
diff --git a/MAKEALL b/MAKEALL
index ae22c67f5..2494b5604 100644
--- a/MAKEALL
+++ b/MAKEALL
@@ -1,5 +1,7 @@
#!/bin/sh
+: ${JOBS:=}
+
if [ "${CROSS_COMPILE}" ] ; then
MAKE="make CROSS_COMPILE=${CROSS_COMPILE}"
else
@@ -179,7 +181,7 @@ build_target() {
${MAKE} distclean >/dev/null
${MAKE} ${target}_config
- ${MAKE} all 2>&1 >LOG/$target.MAKELOG | tee LOG/$target.ERR
+ ${MAKE} ${JOBS} all 2>&1 >LOG/$target.MAKELOG | tee LOG/$target.ERR
${CROSS_COMPILE:-ppc_8xx-}size u-boot | tee -a LOG/$target.MAKELOG
}
diff --git a/Makefile b/Makefile
index 474683785..a4462f899 100644
--- a/Makefile
+++ b/Makefile
@@ -77,24 +77,6 @@ endif
export CROSS_COMPILE
-# The "tools" are needed early, so put this first
-SUBDIRS = tools \
- examples \
- lib_generic \
- lib_$(ARCH) \
- cpu/$(CPU) \
- board/$(BOARDDIR) \
- common \
- disk \
- fs \
- net \
- rtc \
- dtt \
- drivers \
- drivers/sk98lin \
- post \
- post/cpu
-
#########################################################################
# U-Boot objects....order is important (i.e. start must be first)
@@ -123,9 +105,17 @@ LIBS += drivers/sk98lin/libsk98lin.a
LIBS += post/libpost.a post/cpu/libcpu.a
LIBS += common/libcommon.a
LIBS += lib_generic/libgeneric.a
+
# Add GCC lib
PLATFORM_LIBS += -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
+# The "tools" are needed early, so put this first
+# Don't include stuff already done in $(LIBS)
+SUBDIRS = tools \
+ examples \
+ post \
+ post/cpu
+
#########################################################################
#########################################################################
@@ -149,14 +139,18 @@ u-boot.img: u-boot.bin
u-boot.dis: u-boot
$(OBJDUMP) -d $< > $@
-u-boot: depend subdirs $(OBJS) $(LIBS) $(LDSCRIPT)
+u-boot: depend $(SUBDIRS) $(OBJS) $(LIBS) $(LDSCRIPT)
UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) |sed -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
$(LD) $(LDFLAGS) $$UNDEF_SYM $(OBJS) \
--start-group $(LIBS) $(PLATFORM_LIBS) --end-group \
-Map u-boot.map -o u-boot
-subdirs:
- @for dir in $(SUBDIRS) ; do $(MAKE) -C $$dir || exit 1 ; done
+$(LIBS):
+ $(MAKE) -C `dirname $@`
+
+$(SUBDIRS):
+ @echo "#### MAKE $@ ####"
+ $(MAKE) -C $@
gdbtools:
$(MAKE) -C tools/gdb || exit 1
@@ -884,12 +878,12 @@ trab_old_config: unconfig
@[ -z "$(findstring _bigflash,$@)" ] || \
{ echo "#define CONFIG_RAM_16MB" >>include/config.h ; \
echo "... with 16 MB Flash, 16 MB RAM" ; \
- echo "TEXT_BASE = 0x0CF00000" >board/trab/config.tmp ; \
+ echo "TEXT_BASE = 0x0CF40000" >board/trab/config.tmp ; \
}
@[ -z "$(findstring _old,$@)" ] || \
{ echo "#define CONFIG_OLD_VERSION" >>include/config.h ; \
echo "... with small memory configuration" ; \
- echo "TEXT_BASE = 0x0CF00000" >board/trab/config.tmp ; \
+ echo "TEXT_BASE = 0x0CF40000" >board/trab/config.tmp ; \
}
@./mkconfig -a $(call xtract_trab,$@) arm arm920t trab
diff --git a/README b/README
index a1c6a96ba..cdf3f5559 100644
--- a/README
+++ b/README
@@ -1353,7 +1353,7 @@ The following options need to be configured:
of the backslashes before semicolons and special
symbols.
-- Default Environment
+- Default Environment:
CONFIG_EXTRA_ENV_SETTINGS
Define this to contain any number of null terminated
@@ -1379,14 +1379,14 @@ The following options need to be configured:
the environment like the autoscript function or the
boot command first.
-- DataFlash Support
+- DataFlash Support:
CONFIG_HAS_DATAFLASH
Defining this option enables DataFlash features and
allows to read/write in Dataflash via the standard
commands cp, md...
-- Show boot progress
+- Show boot progress:
CONFIG_SHOW_BOOT_PROGRESS
Defining this option allows to add some board-
@@ -1466,6 +1466,19 @@ Modem Support:
Enables debugging stuff (char screen[1024], dbg())
for modem support. Useful only with BDI2000.
+- Interrupt support (PPC):
+
+ There are common interrupt_init() and timer_interrupt()
+ for all PPC archs. interrupt_init() calls interrupt_init_cpu()
+ for cpu specific initialization. interrupt_init_cpu()
+ should set decrementer_count to appropriate value. If
+ cpu resets decrementer automatically after interrupt
+ (ppc4xx) it should set decrementer_count to zero.
+ timer_interrupt() calls timer_interrupt_cpu() for cpu
+ specific handling. If board has watchdog / status_led
+ / other_activity_monitor it works automatically from
+ general timer_interrupt().
+
- General:
In the target system modem support is enabled when a
diff --git a/board/at91rm9200dk/config.mk b/board/at91rm9200dk/config.mk
index 9ce161e55..27cb3b123 100644
--- a/board/at91rm9200dk/config.mk
+++ b/board/at91rm9200dk/config.mk
@@ -1 +1 @@
-TEXT_BASE = 0x21f00000
+TEXT_BASE = 0x21f80000
diff --git a/board/cogent/lcd.c b/board/cogent/lcd.c
index c1b4d116e..814b4c80a 100644
--- a/board/cogent/lcd.c
+++ b/board/cogent/lcd.c
@@ -229,3 +229,17 @@ lcd_heartbeat(void)
if (++rotator_index >= (sizeof rotchars / sizeof rotchars[0]))
rotator_index = 0;
}
+
+#ifdef CONFIG_SHOW_ACTIVITY
+void board_show_activity (ulong timestamp)
+{
+#ifdef CONFIG_STATUS_LED
+ if ((timestamp % (CFG_HZ / 2) == 0)
+ lcd_heartbeat ();
+#endif
+}
+
+void show_activity(int arg)
+{
+}
+#endif
diff --git a/board/cradle/config.mk b/board/cradle/config.mk
index 3ffcfe844..aa4038881 100644
--- a/board/cradle/config.mk
+++ b/board/cradle/config.mk
@@ -1,2 +1,2 @@
-TEXT_BASE = 0xa0f08000
+TEXT_BASE = 0xa0f80000
#TEXT_BASE = 0
diff --git a/board/dnp1110/config.mk b/board/dnp1110/config.mk
index 72ba595f1..4f6af46f8 100644
--- a/board/dnp1110/config.mk
+++ b/board/dnp1110/config.mk
@@ -11,7 +11,7 @@
#
# Linux-Kernel is expected to be at c000'8000, entry c000'8000
#
-# we load ourself to c1f0'0000, the upper 1 MB of the first (only) bank
+# we load ourself to c1f8'0000, the upper 1 MB of the first (only) bank
#
-TEXT_BASE = 0xc1f00000
+TEXT_BASE = 0xc1f80000
diff --git a/board/ep7312/config.mk b/board/ep7312/config.mk
index e1ba0e179..0ae16a2ef 100644
--- a/board/ep7312/config.mk
+++ b/board/ep7312/config.mk
@@ -25,4 +25,4 @@
# MA 02111-1307 USA
#
-TEXT_BASE = 0xc0f00000
+TEXT_BASE = 0xc0f80000
diff --git a/board/hymod/hymod.c b/board/hymod/hymod.c
index 3611a1297..dea0a70a2 100644
--- a/board/hymod/hymod.c
+++ b/board/hymod/hymod.c
@@ -513,3 +513,25 @@ last_stage_init (void)
return (0);
}
+
+#ifdef CONFIG_SHOW_ACTIVITY
+void board_show_activity (ulong timebase)
+{
+#ifdef CFG_HYMOD_DBLEDS
+ volatile immap_t *immr = (immap_t *) CFG_IMMR;
+ volatile iop8260_t *iop = &immr->im_ioport;
+ static int shift = 0;
+
+ if ((timestamp % CFG_HZ) == 0) {
+ if (++shift > 3)
+ shift = 0;
+ iop->iop_pdatd =
+ (iop->iop_pdatd & ~0x0f000000) | (1 << (24 + shift));
+ }
+#endif /* CFG_HYMOD_DBLEDS */
+}
+
+void show_activity(int arg)
+{
+}
+#endif /* CONFIG_SHOW_ACTIVITY */
diff --git a/board/impa7/config.mk b/board/impa7/config.mk
index 69b376c09..417d6a8e2 100644
--- a/board/impa7/config.mk
+++ b/board/impa7/config.mk
@@ -25,4 +25,4 @@
# MA 02111-1307 USA
#
-TEXT_BASE = 0xc1700000
+TEXT_BASE = 0xc1780000
diff --git a/board/lart/config.mk b/board/lart/config.mk
index 8f1a62bba..3033c4fba 100644
--- a/board/lart/config.mk
+++ b/board/lart/config.mk
@@ -14,10 +14,10 @@
#
# Linux-Kernel is expected to be at c000'8000, entry c000'8000
#
-# we load ourself to c170'0000, the upper 1 MB of second bank
+# we load ourself to c178'0000, the upper 1 MB of second bank
#
# download areas is c800'0000
#
-TEXT_BASE = 0xc1700000
+TEXT_BASE = 0xc1780000
diff --git a/board/oxc/oxc.c b/board/oxc/oxc.c
index 5f5e59a3a..0d6fc8536 100644
--- a/board/oxc/oxc.c
+++ b/board/oxc/oxc.c
@@ -156,6 +156,12 @@ void oxc_toggle_activeled(void)
ledtoggle++;
}
+void board_show_activity (ulong timestamp)
+{
+ if ((timestamp % (CFG_HZ / 10)) == 0)
+ oxc_toggle_activeled ();
+}
+
void show_activity(int arg)
{
static unsigned char led = 0;
diff --git a/board/shannon/config.mk b/board/shannon/config.mk
index 736d3af62..ca45733af 100644
--- a/board/shannon/config.mk
+++ b/board/shannon/config.mk
@@ -14,10 +14,10 @@
#
# Linux-Kernel is expected to be at c000'8000, entry c000'8000
#
-# we load ourself to d830'0000, the upper 1 MB of the last (4th) bank
+# we load ourself to d838'0000, the upper 1 MB of the last (4th) bank
#
# download areas is c800'0000
#
-TEXT_BASE = 0xd8300000
+TEXT_BASE = 0xd8380000
diff --git a/board/trab/config.mk b/board/trab/config.mk
index 2cb8edabf..f2411d009 100644
--- a/board/trab/config.mk
+++ b/board/trab/config.mk
@@ -22,5 +22,5 @@
sinclude $(TOPDIR)/board/$(BOARDDIR)/config.tmp
ifndef TEXT_BASE
-TEXT_BASE = 0x0DF00000
+TEXT_BASE = 0x0DF40000
endif
diff --git a/board/wepep250/wepep250.c b/board/wepep250/wepep250.c
index 08b1bfde7..581818316 100644
--- a/board/wepep250/wepep250.c
+++ b/board/wepep250/wepep250.c
@@ -40,15 +40,6 @@ int board_init( void ){
#endif
PSSR = 0x20;
-/*
- * Following code is just bug workaround, remove it if not neccessary
- */
-
- /* cpu/xscale/cpu.c do not set armboot_real_end that is used for
- malloc pool.*/
- if( _armboot_real_end == 0xbadc0de ){
- _armboot_real_end = _armboot_end;
- }
return 0;
}
diff --git a/common/Makefile b/common/Makefile
index ae8222a6a..dae5942db 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -63,6 +63,9 @@ environment.o: environment.c ../tools/envcrc
-DENV_CRC=$(shell ../tools/envcrc) \
-c -o $@ environment.c
+../tools/envcrc:
+ $(MAKE) -C ../tools
+
#########################################################################
.depend: Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/common/xilinx.c b/common/xilinx.c
index cb153e14e..b2e61692c 100644
--- a/common/xilinx.c
+++ b/common/xilinx.c
@@ -194,6 +194,7 @@ int xilinx_info (Xilinx_desc * desc)
/* Add new family types here */
default:
/* we don't need a message here - we give one up above */
+ ;
}
} else
printf ("No Device Function Table.\n");
diff --git a/cpu/74xx_7xx/interrupts.c b/cpu/74xx_7xx/interrupts.c
index 2e2e45615..f0ea48526 100644
--- a/cpu/74xx_7xx/interrupts.c
+++ b/cpu/74xx_7xx/interrupts.c
@@ -32,62 +32,7 @@
#include <commproc.h>
#include <command.h>
-/****************************************************************************/
-
-unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
-
-/****************************************************************************/
-
-static __inline__ unsigned long
-get_msr(void)
-{
- unsigned long msr;
-
- asm volatile("mfmsr %0" : "=r" (msr) :);
- return msr;
-}
-
-static __inline__ void
-set_msr(unsigned long msr)
-{
- asm volatile("mtmsr %0" : : "r" (msr));
-}
-
-static __inline__ unsigned long
-get_dec(void)
-{
- unsigned long val;
-
- asm volatile("mfdec %0" : "=r" (val) :);
- return val;
-}
-
-
-static __inline__ void
-set_dec(unsigned long val)
-{
- asm volatile("mtdec %0" : : "r" (val));
-}
-
-
-void
-enable_interrupts(void)
-{
- set_msr (get_msr() | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int
-disable_interrupts(void)
-{
- ulong msr = get_msr();
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-/****************************************************************************/
-
-int interrupt_init(void)
+int interrupt_init_cpu (unsigned *decrementer_count)
{
#if defined(DEBUG) && !defined(CONFIG_AMIGAONEG3SE)
printf("interrupt_init: GT main cause reg: %08x:%08x\n",
@@ -103,22 +48,8 @@ int interrupt_init(void)
GTREGREAD(ETHERNET2_INTERRUPT_MASK_REGISTER));
puts("interrupt_init: setting decrementer_count\n");
#endif
- decrementer_count = get_tbclk() / CFG_HZ;
+ *decrementer_count = get_tbclk() / CFG_HZ;
-#ifdef DEBUG
- puts("interrupt_init: setting actual decremter\n");
-#endif
- set_dec (get_tbclk() / CFG_HZ);
-
-#ifdef DEBUG
- printf("interrupt_init: enabling interrupts (msr = %08lx)\n",
- get_msr());
-#endif
- set_msr (get_msr() | MSR_EE);
-
-#ifdef DEBUG
- printf("interrupt_init: done. (msr = %08lx)\n", get_msr());
-#endif
return (0);
}
@@ -141,40 +72,10 @@ volatile ulong timestamp = 0;
* Trivial implementation - no need to be really accurate.
*/
void
-timer_interrupt(struct pt_regs *regs)
-{
- set_dec(decrementer_count);
- timestamp++;
-
-#if defined(CONFIG_WATCHDOG)
- if ((timestamp % (CFG_HZ / 2)) == 0) {
-#if defined(CONFIG_PCIPPC2)
- extern void pcippc2_wdt_reset (void);
-
- pcippc2_wdt_reset();
-#endif
- }
-#endif /* CONFIG_WATCHDOG */
-}
-
-/****************************************************************************/
-
-void
-reset_timer(void)
-{
- timestamp = 0;
-}
-
-ulong
-get_timer(ulong base)
-{
- return (timestamp - base);
-}
-
-void
-set_timer(ulong t)
+timer_interrupt_cpu (struct pt_regs *regs)
{
- timestamp = t;
+ /* nothing to do here */
+ return;
}
/****************************************************************************/
diff --git a/cpu/arm720t/cpu.c b/cpu/arm720t/cpu.c
index 7521fbaf5..b6fcef9b4 100644
--- a/cpu/arm720t/cpu.c
+++ b/cpu/arm720t/cpu.c
@@ -82,18 +82,15 @@ static void cp_delay (void)
int cpu_init (void)
{
/*
- * setup up stack if necessary
+ * setup up stacks if necessary
*/
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end + \
- CONFIG_STACKSIZE + \
- CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
#endif
- return (0);
+ return 0;
}
int cleanup_before_linux (void)
diff --git a/cpu/arm720t/start.S b/cpu/arm720t/start.S
index fdedc915f..8ddb0c926 100644
--- a/cpu/arm720t/start.S
+++ b/cpu/arm720t/start.S
@@ -90,14 +90,6 @@ _armboot_end_data:
_armboot_end:
.word armboot_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -132,32 +124,32 @@ reset:
bl cpu_init_crit
#endif
-relocate:
- /*
- * relocate armboot to RAM
- */
- adr r0, _start /* r0 <- current position of code */
+relocate: /* relocate U-Boot to RAM */
+ adr r0, _start /* r0 <- current position of code */
+ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
+
ldr r2, _armboot_start
ldr r3, _armboot_end
- sub r2, r3, r2 /* r2 <- size of armboot */
- ldr r1, _TEXT_BASE /* r1 <- destination address */
- add r2, r0, r2 /* r2 <- source end address */
+ sub r2, r3, r2 /* r2 <- size of armboot */
+ add r2, r0, r2 /* r2 <- source end address */
- /*
- * r0 = source address
- * r1 = target address
- * r2 = source end address
- */
copy_loop:
- ldmia r0!, {r3-r10}
- stmia r1!, {r3-r10}
- cmp r0, r2
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
- /* set up the stack */
- ldr r0, _armboot_end
- add r0, r0, #CONFIG_STACKSIZE
- sub sp, r0, #12 /* leave 3 words for abort-stack */
+ /* Set up the stack */
+stack_setup:
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+ sub sp, r0, #12 /* leave 3 words for abort-stack */
ldr pc, _start_armboot
diff --git a/cpu/arm920t/cpu.c b/cpu/arm920t/cpu.c
index 41cebdfd9..e638c1f8d 100644
--- a/cpu/arm920t/cpu.c
+++ b/cpu/arm920t/cpu.c
@@ -87,17 +87,15 @@ static void cp_delay (void)
int cpu_init (void)
{
/*
- * setup up stack if necessary
+ * setup up stacks if necessary
*/
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end +
- CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
-#endif /* CONFIG_USE_IRQ */
- return (0);
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
+#endif
+ return 0;
}
int cleanup_before_linux (void)
diff --git a/cpu/arm920t/start.S b/cpu/arm920t/start.S
index 17c5f86bc..d640942d8 100644
--- a/cpu/arm920t/start.S
+++ b/cpu/arm920t/start.S
@@ -91,14 +91,6 @@ _armboot_end_data:
_armboot_end:
.word armboot_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -171,28 +163,33 @@ reset:
bl cpu_init_crit
#endif
-relocate:
- /*
- * relocate armboot to RAM
- */
- adr r0, _start /* r0 <- current position of code */
+relocate: /* relocate U-Boot to RAM */
+ adr r0, _start /* r0 <- current position of code */
+ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
+
ldr r2, _armboot_start
ldr r3, _armboot_end
- sub r2, r3, r2 /* r2 <- size of armboot */
- ldr r1, _TEXT_BASE /* r1 <- destination address */
- add r2, r0, r2 /* r2 <- source end address */
+ sub r2, r3, r2 /* r2 <- size of armboot */
+ add r2, r0, r2 /* r2 <- source end address */
- /*
- * r0 = source address
- * r1 = target address
- * r2 = source end address
- */
copy_loop:
- ldmia r0!, {r3-r10}
- stmia r1!, {r3-r10}
- cmp r0, r2
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
+ /* Set up the stack */
+stack_setup:
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+ sub sp, r0, #12 /* leave 3 words for abort-stack */
+
#if 0
/* try doing this stuff after the relocation */
ldr r0, =pWTCON
@@ -214,11 +211,6 @@ copy_loop:
/* END stuff after relocation */
#endif
- /* set up the stack */
- ldr r0, _armboot_end
- add r0, r0, #CONFIG_STACKSIZE
- sub sp, r0, #12 /* leave 3 words for abort-stack */
-
ldr pc, _start_armboot
_start_armboot: .word start_armboot
diff --git a/cpu/arm925t/cpu.c b/cpu/arm925t/cpu.c
index c55fbc795..6bac53da8 100644
--- a/cpu/arm925t/cpu.c
+++ b/cpu/arm925t/cpu.c
@@ -88,17 +88,15 @@ static void cp_delay (void)
int cpu_init (void)
{
/*
- * setup up stack if necessary
+ * setup up stacks if necessary
*/
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end +
- CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
-#endif /* CONFIG_USE_IRQ */
- return (0);
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
+#endif
+ return 0;
}
int cleanup_before_linux (void)
diff --git a/cpu/arm925t/start.S b/cpu/arm925t/start.S
index 6dd301205..0a3042d9a 100644
--- a/cpu/arm925t/start.S
+++ b/cpu/arm925t/start.S
@@ -100,14 +100,6 @@ _armboot_end_data:
_armboot_end:
.word armboot_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -168,34 +160,41 @@ poll1:
ldrh r1, [r0]
ands r1, r1, #0x01
beq poll1
- bl cpu_init_crit
-relocate:
/*
- * relocate armboot to RAM
+ * we do sys-critical inits only at reboot,
+ * not when booting from ram!
*/
- adr r0, _start /* r0 <- current position of code */
+#ifdef CONFIG_INIT_CRITICAL
+ bl cpu_init_crit
+#endif
+
+relocate: /* relocate U-Boot to RAM */
+ adr r0, _start /* r0 <- current position of code */
+ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
+
ldr r2, _armboot_start
ldr r3, _armboot_end
- sub r2, r3, r2 /* r2 <- size of armboot */
- ldr r1, _TEXT_BASE /* r1 <- destination address */
- add r2, r0, r2 /* r2 <- source end address */
+ sub r2, r3, r2 /* r2 <- size of armboot */
+ add r2, r0, r2 /* r2 <- source end address */
- /*
- * r0 = source address
- * r1 = target address
- * r2 = source end address
- */
copy_loop:
- ldmia r0!, {r3-r10}
- stmia r1!, {r3-r10}
- cmp r0, r2
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
- /* set up the stack */
- ldr r0, _armboot_end
- add r0, r0, #CONFIG_STACKSIZE
- sub sp, r0, #12 /* leave 3 words for abort-stack */
+ /* Set up the stack */
+stack_setup:
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+ sub sp, r0, #12 /* leave 3 words for abort-stack */
ldr pc, _start_armboot
diff --git a/cpu/arm926ejs/cpu.c b/cpu/arm926ejs/cpu.c
index a91aa3782..748a21a41 100644
--- a/cpu/arm926ejs/cpu.c
+++ b/cpu/arm926ejs/cpu.c
@@ -88,17 +88,15 @@ static void cp_delay (void)
int cpu_init (void)
{
/*
- * setup up stack if necessary
+ * setup up stacks if necessary
*/
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end +
- CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
-#endif /* CONFIG_USE_IRQ */
- return (0);
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
+#endif
+ return 0;
}
int cleanup_before_linux (void)
diff --git a/cpu/arm926ejs/start.S b/cpu/arm926ejs/start.S
index b860fd408..39d7409b0 100644
--- a/cpu/arm926ejs/start.S
+++ b/cpu/arm926ejs/start.S
@@ -108,14 +108,6 @@ _armboot_end_data:
_armboot_end:
.word armboot_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -162,34 +154,41 @@ reset:
str r1, [r0]
ldr r0, =REG_IHL2_MIR
str r1, [r0]
- bl cpu_init_crit
-relocate:
/*
- * relocate armboot to RAM
+ * we do sys-critical inits only at reboot,
+ * not when booting from ram!
*/
- adr r0, _start /* r0 <- current position of code */
+#ifdef CONFIG_INIT_CRITICAL
+ bl cpu_init_crit
+#endif
+
+relocate: /* relocate U-Boot to RAM */
+ adr r0, _start /* r0 <- current position of code */
+ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
+
ldr r2, _armboot_start
ldr r3, _armboot_end
- sub r2, r3, r2 /* r2 <- size of armboot */
- ldr r1, _TEXT_BASE /* r1 <- destination address */
- add r2, r0, r2 /* r2 <- source end address */
+ sub r2, r3, r2 /* r2 <- size of armboot */
+ add r2, r0, r2 /* r2 <- source end address */
- /*
- * r0 = source address
- * r1 = target address
- * r2 = source end address
- */
copy_loop:
- ldmia r0!, {r3-r10}
- stmia r1!, {r3-r10}
- cmp r0, r2
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
- /* set up the stack */
- ldr r0, _armboot_end
- add r0, r0, #CONFIG_STACKSIZE
- sub sp, r0, #12 /* leave 3 words for abort-stack */
+ /* Set up the stack */
+stack_setup:
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+ sub sp, r0, #12 /* leave 3 words for abort-stack */
ldr pc, _start_armboot
diff --git a/cpu/at91rm9200/cpu.c b/cpu/at91rm9200/cpu.c
index 262ca340e..b0cfcefec 100644
--- a/cpu/at91rm9200/cpu.c
+++ b/cpu/at91rm9200/cpu.c
@@ -81,18 +81,16 @@ static void cp_delay(void)
int cpu_init(void)
{
- /*
- * setup up stack if necessary
- */
+ /*
+ * setup up stacks if necessary
+ */
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end +
- CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
#endif
- return 0;
+ return 0;
}
int cleanup_before_linux(void)
diff --git a/cpu/at91rm9200/start.S b/cpu/at91rm9200/start.S
index 9fa1461d2..a93d0454d 100644
--- a/cpu/at91rm9200/start.S
+++ b/cpu/at91rm9200/start.S
@@ -93,14 +93,6 @@ _armboot_end_data:
_armboot_end:
.word armboot_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -147,10 +139,16 @@ copyex:
bl cpu_init_crit
#endif
- /* set up the stack */
- ldr r0, _armboot_end
- add r0, r0, #CONFIG_STACKSIZE
- sub sp, r0, #12 /* leave 3 words for abort-stack */
+ /* Set up the stack */
+stack_setup:
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+ sub sp, r0, #12 /* leave 3 words for abort-stack */
+
ldr pc,_start_armboot
_start_armboot: .word start_armboot
diff --git a/cpu/mpc5xx/interrupts.c b/cpu/mpc5xx/interrupts.c
index 461868000..3678b5bfc 100644
--- a/cpu/mpc5xx/interrupts.c
+++ b/cpu/mpc5xx/interrupts.c
@@ -28,16 +28,9 @@
*/
#include <common.h>
-#include <watchdog.h>
#include <mpc5xx.h>
#include <asm/processor.h>
-/************************************************************************/
-
-unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
-
-/************************************************************************/
-
struct interrupt_action {
interrupt_handler_t *handler;
void *arg;
@@ -46,73 +39,19 @@ struct interrupt_action {
static struct interrupt_action irq_vecs[NR_IRQS];
/*
- * Local function prototypes
- */
-static __inline__ unsigned long get_msr (void)
-{
- unsigned long msr;
-
- asm volatile ("mfmsr %0":"=r" (msr):);
-
- return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
- asm volatile ("mtmsr %0"::"r" (msr));
-}
-
-static __inline__ unsigned long get_dec (void)
-{
- unsigned long val;
-
- asm volatile ("mfdec %0":"=r" (val):);
-
- return val;
-}
-
-
-static __inline__ void set_dec (unsigned long val)
-{
- asm volatile ("mtdec %0"::"r" (val));
-}
-
-/*
- * Enable interrupts
- */
-void enable_interrupts (void)
-{
- set_msr (get_msr () | MSR_EE);
-}
-
-/*
- * Returns flag if MSR_EE was set before
- */
-int disable_interrupts (void)
-{
- ulong msr = get_msr ();
-
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-/*
* Initialise interrupts
*/
-int interrupt_init (void)
+int interrupt_init_cpu (ulong *decrementer_count)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
/* Decrementer used here for status led */
- decrementer_count = get_tbclk () / CFG_HZ;
+ *decrementer_count = get_tbclk () / CFG_HZ;
/* Disable all interrupts */
immr->im_siu_conf.sc_simask = 0;
- set_dec (decrementer_count);
-
- set_msr (get_msr () | MSR_EE);
return (0);
}
@@ -206,19 +145,14 @@ void irq_free_handler (int vec)
irq_vecs[vec].arg = NULL;
}
-volatile ulong timestamp = 0;
-
/*
* Timer interrupt - gets called when bit 0 of DEC changes from
* 0. Decrementer is enabled with bit TBE in TBSCR.
*/
-void timer_interrupt (struct pt_regs *regs)
+void timer_interrupt_cpu (struct pt_regs *regs)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
-#ifdef CONFIG_STATUS_LED
- extern void status_led_tick (ulong);
-#endif
#if 0
printf ("*** Timer Interrupt *** ");
#endif
@@ -227,47 +161,5 @@ void timer_interrupt (struct pt_regs *regs)
__asm__ ("nop");
immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS | PLPRCR_TMIST;
- /* Restore Decrementer Count */
- set_dec (decrementer_count);
-
- timestamp++;
-
-#ifdef CONFIG_STATUS_LED
- status_led_tick (timestamp);
-#endif /* CONFIG_STATUS_LED */
-
-#if defined(CONFIG_WATCHDOG)
- /*
- * The shortest watchdog period of all boards
- * is approx. 1 sec, thus re-trigger watchdog at least
- * every 500 ms = CFG_HZ / 2
- */
- if ((timestamp % (CFG_HZ / 2)) == 0) {
- reset_5xx_watchdog (immr);
- }
-#endif /* CONFIG_WATCHDOG */
-}
-
-/*
- * Reset timer
- */
-void reset_timer (void)
-{
- timestamp = 0;
-}
-
-/*
- * Get Timer
- */
-ulong get_timer (ulong base)
-{
- return (timestamp - base);
-}
-
-/*
- * Set timer
- */
-void set_timer (ulong t)
-{
- timestamp = t;
+ return;
}
diff --git a/cpu/mpc5xxx/interrupts.c b/cpu/mpc5xxx/interrupts.c
index 5aa43880b..7bacecd59 100644
--- a/cpu/mpc5xxx/interrupts.c
+++ b/cpu/mpc5xxx/interrupts.c
@@ -32,79 +32,10 @@
#include <asm/processor.h>
#include <command.h>
-/****************************************************************************/
-
-unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
-
-/****************************************************************************/
-
-static __inline__ unsigned long
-get_msr(void)
-{
- unsigned long msr;
-
- asm volatile("mfmsr %0" : "=r" (msr) :);
- return msr;
-}
-
-static __inline__ void
-set_msr(unsigned long msr)
-{
- asm volatile("mtmsr %0" : : "r" (msr));
-}
-
-static __inline__ unsigned long
-get_dec(void)
-{
- unsigned long val;
-
- asm volatile("mfdec %0" : "=r" (val) :);
- return val;
-}
-
-
-static __inline__ void
-set_dec(unsigned long val)
-{
- asm volatile("mtdec %0" : : "r" (val));
-}
-
-
-void
-enable_interrupts(void)
-{
- set_msr (get_msr() | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int
-disable_interrupts(void)
-{
- ulong msr = get_msr();
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-/****************************************************************************/
-
-int interrupt_init(void)
+int interrupt_init_cpu (ulong *decrementer_count)
{
- decrementer_count = get_tbclk() / CFG_HZ;
+ *decrementer_count = get_tbclk() / CFG_HZ;
-#ifdef DEBUG
- puts("interrupt_init: setting actual decremter\n");
-#endif
- set_dec (get_tbclk() / CFG_HZ);
-
-#ifdef DEBUG
- printf("interrupt_init: enabling interrupts (msr = %08lx)\n",
- get_msr());
-#endif
- set_msr (get_msr() | MSR_EE);
-
-#ifdef DEBUG
- printf("interrupt_init: done. (msr = %08lx)\n", get_msr());
-#endif
return (0);
}
@@ -119,38 +50,11 @@ external_interrupt(struct pt_regs *regs)
puts("external_interrupt (oops!)\n");
}
-volatile ulong timestamp = 0;
-
-/*
- * timer_interrupt - gets called when the decrementer overflows,
- * with interrupts disabled.
- * Trivial implementation - no need to be really accurate.
- */
-void
-timer_interrupt(struct pt_regs *regs)
-{
- set_dec(decrementer_count);
- timestamp++;
-}
-
-/****************************************************************************/
-
-void
-reset_timer(void)
-{
- timestamp = 0;
-}
-
-ulong
-get_timer(ulong base)
-{
- return (timestamp - base);
-}
-
void
-set_timer(ulong t)
+timer_interrupt_cpu (struct pt_regs *regs)
{
- timestamp = t;
+ /* nothing to do here */
+ return;
}
/****************************************************************************/
diff --git a/cpu/mpc824x/interrupts.c b/cpu/mpc824x/interrupts.c
index 825857b05..acb8947e0 100644
--- a/cpu/mpc824x/interrupts.c
+++ b/cpu/mpc824x/interrupts.c
@@ -27,62 +27,11 @@
#include <asm/processor.h>
#include <asm/pci_io.h>
#include <commproc.h>
-#include <watchdog.h>
#include "drivers/epic.h"
-/****************************************************************************/
-
-unsigned decrementer_count; /* count val for 1e6/HZ microseconds */
-
-static __inline__ unsigned long get_msr (void)
-{
- unsigned long msr;
-
- asm volatile ("mfmsr %0":"=r" (msr):);
-
- return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
- asm volatile ("mtmsr %0"::"r" (msr));
-}
-
-static __inline__ unsigned long get_dec (void)
-{
- unsigned long val;
-
- asm volatile ("mfdec %0":"=r" (val):);
-
- return val;
-}
-
-
-static __inline__ void set_dec (unsigned long val)
-{
- asm volatile ("mtdec %0"::"r" (val));
-}
-
-
-void enable_interrupts (void)
+int interrupt_init_cpu (unsigned *decrementer_count)
{
- set_msr (get_msr () | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int disable_interrupts (void)
-{
- ulong msr = get_msr ();
-
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-/****************************************************************************/
-
-int interrupt_init (void)
-{
- decrementer_count = (get_bus_freq (0) / 4) / CFG_HZ;
+ *decrementer_count = (get_bus_freq (0) / 4) / CFG_HZ;
/*
* It's all broken at the moment and I currently don't need
@@ -96,10 +45,6 @@ int interrupt_init (void)
/* EPIC won't generate INT unless Current Task Pri < 15 */
epicCurTaskPrioSet(0);
- set_dec (decrementer_count);
-
- set_msr (get_msr () | MSR_EE);
-
return (0);
}
@@ -141,42 +86,8 @@ void irq_free_handler (int vec)
vga?
*/
-volatile ulong timestamp = 0;
-
-void timer_interrupt (struct pt_regs *regs)
-{
- /* Restore Decrementer Count */
- set_dec (decrementer_count);
-
- timestamp++;
-
-#if defined(CONFIG_WATCHDOG) || defined (CONFIG_HW_WATCHDOG)
- if ((timestamp % (CFG_HZ / 2)) == 0) {
- WATCHDOG_RESET ();
- }
-#endif /* CONFIG_WATCHDOG */
-#if defined(CONFIG_SHOW_ACTIVITY) && defined(CONFIG_OXC)
- if ((timestamp % (CFG_HZ / 10)) == 0) {
- {
- extern void oxc_toggle_activeled (void);
-
- oxc_toggle_activeled ();
- }
- }
-#endif
-}
-
-void reset_timer (void)
-{
- timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{
- return (timestamp - base);
-}
-
-void set_timer (ulong t)
+void timer_interrupt_cpu (struct pt_regs *regs, ulong timestamp)
{
- timestamp = t;
+ /* nothing to do here */
+ return;
}
diff --git a/cpu/mpc8260/interrupts.c b/cpu/mpc8260/interrupts.c
index 3c5ef7460..e2a6c9778 100644
--- a/cpu/mpc8260/interrupts.c
+++ b/cpu/mpc8260/interrupts.c
@@ -24,19 +24,13 @@
*/
#include <common.h>
-#include <watchdog.h>
#include <command.h>
#include <mpc8260.h>
#include <mpc8260_irq.h>
#include <asm/processor.h>
-#ifdef CONFIG_STATUS_LED
-#include <status_led.h>
-#endif
/****************************************************************************/
-unsigned decrementer_count; /* count val for 1e6/HZ microseconds */
-
struct irq_action {
interrupt_handler_t *handler;
void *arg;
@@ -144,57 +138,13 @@ static int m8260_get_irq (struct pt_regs *regs)
/* end of code ripped out of arch/ppc/kernel/ppc8260_pic.c */
/****************************************************************************/
-static __inline__ unsigned long get_msr (void)
-{
- unsigned long msr;
-
- __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
-
- return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
- __asm__ __volatile__ ("mtmsr %0;sync;isync"::"r" (msr));
-}
-
-static __inline__ unsigned long get_dec (void)
-{
- unsigned long val;
-
- __asm__ __volatile__ ("mfdec %0":"=r" (val):);
-
- return val;
-}
-
-static __inline__ void set_dec (unsigned long val)
-{
- __asm__ __volatile__ ("mtdec %0"::"r" (val));
-}
-
-void enable_interrupts (void)
-{
- set_msr (get_msr () | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int disable_interrupts (void)
-{
- ulong msr = get_msr ();
-
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-/****************************************************************************/
-
-int interrupt_init (void)
+int interrupt_init_cpu (unsigned *decrementer_count)
{
DECLARE_GLOBAL_DATA_PTR;
volatile immap_t *immr = (immap_t *) CFG_IMMR;
- decrementer_count = (gd->bus_clk / 4) / CFG_HZ;
+ *decrementer_count = (gd->bus_clk / 4) / CFG_HZ;
/* Initialize the default interrupt mapping priorities */
immr->im_intctl.ic_sicr = 0;
@@ -216,10 +166,6 @@ int interrupt_init (void)
immr->im_intctl.ic_siexr = -1;
#endif
- set_dec (decrementer_count);
-
- set_msr (get_msr () | MSR_EE);
-
return (0);
}
@@ -236,7 +182,7 @@ void external_interrupt (struct pt_regs *regs)
m8260_mask_and_ack (irq);
- set_msr (get_msr () | MSR_EE);
+ enable_interrupts ();
if (irq_handlers[irq].handler != NULL)
(*irq_handlers[irq].handler) (irq_handlers[irq].arg);
@@ -292,75 +238,10 @@ void irq_free_handler (int irq)
/****************************************************************************/
-volatile ulong timestamp = 0;
-
-/*
- * timer_interrupt - gets called when the decrementer overflows,
- * with interrupts disabled.
- * Trivial implementation - no need to be really accurate.
- */
-void timer_interrupt (struct pt_regs *regs)
-{
-#if defined(CONFIG_WATCHDOG) || defined(CFG_HYMOD_DBLEDS)
- volatile immap_t *immr = (immap_t *) CFG_IMMR;
-#endif /* CONFIG_WATCHDOG */
-
- /* Restore Decrementer Count */
- set_dec (decrementer_count);
-
- timestamp++;
-
-#if defined(CONFIG_WATCHDOG) || \
- defined(CFG_CMA_LCD_HEARTBEAT) || \
- defined(CFG_HYMOD_DBLEDS)
-
- if ((timestamp % CFG_HZ) == 0) {
-#if defined(CFG_CMA_LCD_HEARTBEAT)
- extern void lcd_heartbeat (void);
-#endif /* CFG_CMA_LCD_HEARTBEAT */
-#if defined(CFG_HYMOD_DBLEDS)
- volatile iop8260_t *iop = &immr->im_ioport;
- static int shift = 0;
-#endif /* CFG_HYMOD_DBLEDS */
-
-#if defined(CFG_CMA_LCD_HEARTBEAT)
- lcd_heartbeat ();
-#endif /* CFG_CMA_LCD_HEARTBEAT */
-
-#if defined(CONFIG_WATCHDOG)
- reset_8260_watchdog (immr);
-#endif /* CONFIG_WATCHDOG */
-
-#if defined(CFG_HYMOD_DBLEDS)
- /* hymod daughter board LEDs */
- if (++shift > 3)
- shift = 0;
- iop->iop_pdatd =
- (iop->iop_pdatd & ~0x0f000000) | (1 << (24 + shift));
-#endif /* CFG_HYMOD_DBLEDS */
- }
-#endif /* CONFIG_WATCHDOG || CFG_CMA_LCD_HEARTBEAT */
-
-#ifdef CONFIG_STATUS_LED
- status_led_tick (timestamp);
-#endif /* CONFIG_STATUS_LED */
-}
-
-/****************************************************************************/
-
-void reset_timer (void)
-{
- timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{
- return (timestamp - base);
-}
-
-void set_timer (ulong t)
+void timer_interrupt_cpu (struct pt_regs *regs)
{
- timestamp = t;
+ /* nothing to do here */
+ return;
}
/****************************************************************************/
diff --git a/cpu/mpc8xx/interrupts.c b/cpu/mpc8xx/interrupts.c
index 8bc0a1afd..558dc09c0 100644
--- a/cpu/mpc8xx/interrupts.c
+++ b/cpu/mpc8xx/interrupts.c
@@ -22,7 +22,6 @@
*/
#include <common.h>
-#include <watchdog.h>
#include <mpc8xx.h>
#include <mpc8xx_irq.h>
#include <asm/processor.h>
@@ -30,10 +29,6 @@
/************************************************************************/
-unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
-
-/************************************************************************/
-
/*
* CPM interrupt vector functions.
*/
@@ -50,57 +45,11 @@ static void cpm_interrupt (void *regs);
/************************************************************************/
-static __inline__ unsigned long get_msr (void)
-{
- unsigned long msr;
-
- asm volatile ("mfmsr %0":"=r" (msr):);
-
- return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
- asm volatile ("mtmsr %0"::"r" (msr));
-}
-
-static __inline__ unsigned long get_dec (void)
-{
- unsigned long val;
-
- asm volatile ("mfdec %0":"=r" (val):);
-
- return val;
-}
-
-
-static __inline__ void set_dec (unsigned long val)
-{
- asm volatile ("mtdec %0"::"r" (val));
-}
-
-
-void enable_interrupts (void)
-{
- set_msr (get_msr () | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int disable_interrupts (void)
-{
- ulong msr = get_msr ();
-
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-/************************************************************************/
-
-int interrupt_init (void)
+int interrupt_init_cpu (unsigned *decrementer_count)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
- decrementer_count = get_tbclk () / CFG_HZ;
+ *decrementer_count = get_tbclk () / CFG_HZ;
/* disable all interrupts */
immr->im_siu_conf.sc_simask = 0;
@@ -108,10 +57,6 @@ int interrupt_init (void)
/* Configure CPM interrupts */
cpm_interrupt_init ();
- set_dec (decrementer_count);
-
- set_msr (get_msr () | MSR_EE);
-
return (0);
}
@@ -314,20 +259,15 @@ static void cpm_interrupt_init (void)
/************************************************************************/
-volatile ulong timestamp = 0;
-
/*
* timer_interrupt - gets called when the decrementer overflows,
* with interrupts disabled.
* Trivial implementation - no need to be really accurate.
*/
-void timer_interrupt (struct pt_regs *regs)
+void timer_interrupt_cpu (struct pt_regs *regs)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
-#ifdef CONFIG_STATUS_LED
- extern void status_led_tick (ulong);
-#endif
#if 0
printf ("*** Timer Interrupt *** ");
#endif
@@ -339,57 +279,6 @@ void timer_interrupt (struct pt_regs *regs)
#else
immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS | PLPRCR_TMIST;
#endif
- /* Restore Decrementer Count */
- set_dec (decrementer_count);
-
- timestamp++;
-
-#ifdef CONFIG_STATUS_LED
- status_led_tick (timestamp);
-#endif /* CONFIG_STATUS_LED */
-
-#if defined(CONFIG_WATCHDOG) || defined(CFG_CMA_LCD_HEARTBEAT)
-
- /*
- * The shortest watchdog period of all boards (except LWMON)
- * is approx. 1 sec, thus re-trigger watchdog at least
- * every 500 ms = CFG_HZ / 2
- */
-#ifndef CONFIG_LWMON
- if ((timestamp % (CFG_HZ / 2)) == 0) {
-#else
- if ((timestamp % (CFG_HZ / 20)) == 0) {
-#endif
-
-#if defined(CFG_CMA_LCD_HEARTBEAT)
- extern void lcd_heartbeat (void);
-
- lcd_heartbeat ();
-#endif /* CFG_CMA_LCD_HEARTBEAT */
-
-#if defined(CONFIG_WATCHDOG)
- reset_8xx_watchdog (immr);
-#endif /* CONFIG_WATCHDOG */
-
- }
-#endif /* CONFIG_WATCHDOG || CFG_CMA_LCD_HEARTBEAT */
-}
-
-/************************************************************************/
-
-void reset_timer (void)
-{
- timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{
- return (timestamp - base);
-}
-
-void set_timer (ulong t)
-{
- timestamp = t;
}
/************************************************************************/
diff --git a/cpu/ppc4xx/405gp_enet.c b/cpu/ppc4xx/405gp_enet.c
index c222c719e..a9c7cfe05 100644
--- a/cpu/ppc4xx/405gp_enet.c
+++ b/cpu/ppc4xx/405gp_enet.c
@@ -159,7 +159,7 @@ static int tx_i_index = 0; /* Transmit Interrupt Queue Index */
static int tx_u_index = 0; /* Transmit User Queue Index */
static int tx_run[NUM_TX_BUFF]; /* Transmit Running Queue */
-#undef INFO_405_ENET 1
+#undef INFO_405_ENET
#ifdef INFO_405_ENET
static int packetSent = 0;
static int packetReceived = 0;
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c
index b6a956c15..1a9ae9d7d 100644
--- a/cpu/ppc4xx/interrupts.c
+++ b/cpu/ppc4xx/interrupts.c
@@ -35,10 +35,6 @@
/****************************************************************************/
-unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
-
-/****************************************************************************/
-
/*
* CPM interrupt vector functions.
*/
@@ -57,20 +53,6 @@ void uic1_interrupt( void * parms); /* UIC1 handler */
#endif
/****************************************************************************/
-
-static __inline__ unsigned long get_msr(void)
-{
- unsigned long msr;
-
- asm volatile("mfmsr %0" : "=r" (msr) :);
- return msr;
-}
-
-static __inline__ void set_msr(unsigned long msr)
-{
- asm volatile("mtmsr %0" : : "r" (msr));
-}
-
#if defined(CONFIG_440)
/* SPRN changed in 440 */
@@ -81,21 +63,6 @@ static __inline__ void set_evpr(unsigned long val)
#else /* !defined(CONFIG_440) */
-static __inline__ unsigned long get_dec(void)
-{
- unsigned long val;
-
- asm volatile("mfdec %0" : "=r" (val) :);
- return val;
-}
-
-
-static __inline__ void set_dec(unsigned long val)
-{
- asm volatile("mtdec %0" : : "r" (val));
-}
-
-
static __inline__ void set_pit(unsigned long val)
{
asm volatile("mtpit %0" : : "r" (val));
@@ -114,29 +81,18 @@ static __inline__ void set_evpr(unsigned long val)
}
#endif /* defined(CONFIG_440 */
-
-void enable_interrupts (void)
-{
- set_msr (get_msr() | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int disable_interrupts (void)
-{
- ulong msr = get_msr();
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
/****************************************************************************/
-int interrupt_init(void)
+int interrupt_init_cpu (unsigned *decrementer_count)
{
DECLARE_GLOBAL_DATA_PTR;
int vec;
unsigned long val;
+ /* decrementer is automatically reloaded */
+ *decrementer_count = 0;
+
/*
* Mark all irqs as free
*/
@@ -194,10 +150,6 @@ int interrupt_init(void)
irq_install_handler(VECNUM_UIC1NC, uic1_interrupt, 0);
irq_install_handler(VECNUM_UIC1C, uic1_interrupt, 0);
#endif
- /*
- * Enable external interrupts (including PIT)
- */
- set_msr (get_msr() | MSR_EE);
return (0);
}
@@ -362,47 +314,14 @@ irq_free_handler(int vec)
/****************************************************************************/
-
-volatile ulong timestamp = 0;
-
-/*
- * timer_interrupt - gets called when the decrementer overflows,
- * with interrupts disabled.
- * Trivial implementation - no need to be really accurate.
- */
-void timer_interrupt(struct pt_regs *regs)
-{
-#if 0
- printf ("*** Timer Interrupt *** ");
-#endif
- timestamp++;
-
-#if defined(CONFIG_WATCHDOG)
- if ((timestamp % 1000) == 0)
- reset_4xx_watchdog();
-#endif /* CONFIG_WATCHDOG */
-}
-
-/****************************************************************************/
-
-void reset_timer (void)
-{
- timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{
- return (timestamp - base);
-}
-
-void set_timer (ulong t)
+void timer_interrupt_cpu (struct pt_regs *regs)
{
- timestamp = t;
+ /* nothing to do here */
+ return;
}
/****************************************************************************/
-
#if (CONFIG_COMMANDS & CFG_CMD_IRQ)
/*******************************************************************************
diff --git a/cpu/pxa/cpu.c b/cpu/pxa/cpu.c
index 6b82f04f7..32ec4f692 100644
--- a/cpu/pxa/cpu.c
+++ b/cpu/pxa/cpu.c
@@ -37,22 +37,15 @@
int cpu_init (void)
{
/*
- * setup up stack if necessary
+ * setup up stacks if necessary
*/
-/*
-
- FIXME: the stack is _below_ the uboot code!!
-
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end +
- CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
#endif
-*/
- return (0);
+ return 0;
}
int cleanup_before_linux (void)
diff --git a/cpu/pxa/start.S b/cpu/pxa/start.S
index a42544926..d41b41477 100644
--- a/cpu/pxa/start.S
+++ b/cpu/pxa/start.S
@@ -4,10 +4,10 @@
* Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
* Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
* Copyright (C) 2000 Wolfgang Denk <wd@denx.de>
- * Copyright (C) 2001 Alex Zpke <azu@sysgo.de>
+ * Copyright (C) 2001 Alex Zuepke <azu@sysgo.de>
* Copyright (C) 2002 Kyle Harris <kharris@nexus-tech.net>
* Copyright (C) 2003 Robert Schwebel <r.schwebel@pengutronix.de>
- * Copyright (C) 2003 Kai-Uwe Bloehm <kai-uwe.bloem@auerswald.de>
+ * Copyright (C) 2003 Kai-Uwe Bloem <kai-uwe.bloem@auerswald.de>
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -55,7 +55,7 @@ _fiq: .word fiq
/*
* Startup Code (reset vector)
*
- * do important init only if we don't start from memory!
+ * do important init only if we don't start from RAM!
* - relocate armboot to ram
* - setup stack
* - jump to second stage
@@ -91,21 +91,6 @@ _bss_start:
_bss_end:
.word bss_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
-/*
- * We relocate uboot to this address (end of RAM - 128 KiB)
- */
-.globl _uboot_reloc
-_uboot_reloc:
- .word TEXT_BASE
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -131,7 +116,13 @@ reset:
orr r0,r0,#0x13
msr cpsr,r0
+ /*
+ * we do sys-critical inits only at reboot,
+ * not when booting from ram!
+ */
+#ifdef CONFIG_INIT_CRITICAL
bl cpu_init_crit /* we do sys-critical inits */
+#endif
relocate: /* relocate U-Boot to RAM */
adr r0, _start /* r0 <- current position of code */
@@ -151,12 +142,13 @@ copy_loop:
ble copy_loop
/* Set up the stack */
-
stack_setup:
-
- ldr r0, _uboot_reloc /* upper 128 KiB: relocated uboot */
- sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
- /* FIXME: bdinfo should be here */
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
sub sp, r0, #12 /* leave 3 words for abort-stack */
clear_bss:
@@ -202,9 +194,13 @@ OSTIMER_BASE: .word 0x40a00000
#define OIER 0x1C
/* Clock Manager Registers */
+#ifdef CFG_CPUSPEED
CC_BASE: .word 0x41300000
#define CCCR 0x00
cpuspeed: .word CFG_CPUSPEED
+#else
+#error "You have to define CFG_CPUSPEED!!"
+#endif
/* RS: ??? */
diff --git a/cpu/sa1100/cpu.c b/cpu/sa1100/cpu.c
index 370ea6cb9..b613fe7eb 100644
--- a/cpu/sa1100/cpu.c
+++ b/cpu/sa1100/cpu.c
@@ -36,17 +36,15 @@
int cpu_init (void)
{
/*
- * setup up stack if necessary
+ * setup up stacks if necessary
*/
#ifdef CONFIG_USE_IRQ
- IRQ_STACK_START = _armboot_end +
- CONFIG_STACKSIZE + CONFIG_STACKSIZE_IRQ - 4;
- FIQ_STACK_START = IRQ_STACK_START + CONFIG_STACKSIZE_FIQ;
- _armboot_real_end = FIQ_STACK_START + 4;
-#else
- _armboot_real_end = _armboot_end + CONFIG_STACKSIZE;
+ DECLARE_GLOBAL_DATA_PTR;
+
+ IRQ_STACK_START = _armboot_start - CFG_MALLOC_LEN - CFG_GBL_DATA_LEN - 4;
+ FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
#endif
- return (0);
+ return 0;
}
int cleanup_before_linux (void)
diff --git a/cpu/sa1100/start.S b/cpu/sa1100/start.S
index 6b4c94891..0c8946e00 100644
--- a/cpu/sa1100/start.S
+++ b/cpu/sa1100/start.S
@@ -92,14 +92,6 @@ _armboot_end_data:
_armboot_end:
.word armboot_end
-/*
- * _armboot_real_end is the first usable RAM address behind armboot
- * and the various stacks
- */
-.globl _armboot_real_end
-_armboot_real_end:
- .word 0x0badc0de
-
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
.globl IRQ_STACK_START
@@ -134,32 +126,32 @@ reset:
bl cpu_init_crit
#endif
-relocate:
- /*
- * relocate armboot to RAM
- */
- adr r0, _start /* r0 <- current position of code */
+relocate: /* relocate U-Boot to RAM */
+ adr r0, _start /* r0 <- current position of code */
+ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
+ cmp r0, r1 /* don't reloc during debug */
+ beq stack_setup
+
ldr r2, _armboot_start
ldr r3, _armboot_end
- sub r2, r3, r2 /* r2 <- size of armboot */
- ldr r1, _TEXT_BASE /* r1 <- destination address */
- add r2, r0, r2 /* r2 <- source end address */
+ sub r2, r3, r2 /* r2 <- size of armboot */
+ add r2, r0, r2 /* r2 <- source end address */
- /*
- * r0 = source address
- * r1 = target address
- * r2 = source end address
- */
copy_loop:
- ldmia r0!, {r3-r10}
- stmia r1!, {r3-r10}
- cmp r0, r2
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
- /* set up the stack */
- ldr r0, _armboot_end
- add r0, r0, #CONFIG_STACKSIZE
- sub sp, r0, #12 /* leave 3 words for abort-stack */
+ /* Set up the stack */
+stack_setup:
+ ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
+ sub r0, r0, #CFG_MALLOC_LEN /* malloc area */
+ sub r0, r0, #CFG_GBL_DATA_SIZE /* bdinfo */
+#ifdef CONFIG_USE_IRQ
+ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+ sub sp, r0, #12 /* leave 3 words for abort-stack */
ldr pc, _start_armboot
diff --git a/doc/README.ARM-memory-map b/doc/README.ARM-memory-map
new file mode 100644
index 000000000..8905a50b8
--- /dev/null
+++ b/doc/README.ARM-memory-map
@@ -0,0 +1,27 @@
+Subject: Re: [PATCH][CFT] bring ARM memory layout in line with the documented behaviour
+From: "Anders Larsen" <alarsen@rea.de>
+Date: Thu, 18 Sep 2003 14:15:21 +0200
+To: Wolfgang Denk <wd@denx.de>
+
+...
+>I still see references to _armboot_start, _armboot_end_data, and
+>_armboot_end - which role do these play now? Can we get rid of them?
+>
+>How are they (should they be) set in your memory map above?
+
+_armboot_start contains the value of TEXT_BASE (0xA07E0000); it seems
+TEXT_BASE and _armboot_start are both used for the same purpose in
+different parts of the (ARM) code.
+Furthermore, the startup code (cpu/<arm>/start.S) internally uses
+another variable (_TEXT_BASE) with the same content as _armboot_start.
+I agree that this mess should be cleaned up.
+
+_armboot_end_data is the end address of the initialized data section,
+and is only used in one place (board/logodl/flash.c - the reference in
+lib_arm/board.c is purely informational).
+
+_armboot_end is the end address of the BSS and is used to determine
+the address of the VFD buffer.
+
+Eliminating those should be doable, and at least the patch already
+eliminates _armboot_real_end.
diff --git a/include/asm-arm/u-boot-arm.h b/include/asm-arm/u-boot-arm.h
index 355b1e4e6..4c92b1f36 100644
--- a/include/asm-arm/u-boot-arm.h
+++ b/include/asm-arm/u-boot-arm.h
@@ -35,7 +35,6 @@ extern ulong _armboot_end_data; /* code + data end */
extern ulong _armboot_end; /* BSS end */
extern ulong IRQ_STACK_START; /* top of IRQ stack */
extern ulong FIQ_STACK_START; /* top of FIQ stack */
-extern ulong _armboot_real_end; /* first usable RAM address */
/* cpu/.../cpu.c */
int cpu_init(void);
diff --git a/include/configs/VCMA9.h b/include/configs/VCMA9.h
index 9f868f8c8..8a09da688 100644
--- a/include/configs/VCMA9.h
+++ b/include/configs/VCMA9.h
@@ -97,6 +97,7 @@
* Size of malloc() pool
*/
#define CONFIG_MALLOC_SIZE (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
#define CFG_MONITOR_LEN (256 * 1024)
#define CFG_MALLOC_LEN (128 * 1024)
diff --git a/include/configs/at91rm9200dk.h b/include/configs/at91rm9200dk.h
index 415b7fb6e..b092ec7a1 100644
--- a/include/configs/at91rm9200dk.h
+++ b/include/configs/at91rm9200dk.h
@@ -25,6 +25,12 @@
#ifndef __CONFIG_H
#define __CONFIG_H
+/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL /* undef for developing */
+
/* ARM asynchronous clock */
#define AT91C_MAIN_CLOCK 179712000 /* from 18.432 MHz crystal (18432000 / 4 * 39) */
#define AT91C_MASTER_CLOCK 59904000 /* peripheral clock (AT91C_MASTER_CLOCK / 3) */
@@ -40,7 +46,10 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
+
#define CONFIG_BAUDRATE 115200
+
/*
* Hardware drivers
*/
diff --git a/include/configs/cogent_mpc8260.h b/include/configs/cogent_mpc8260.h
index 22d154e6d..d7305272d 100644
--- a/include/configs/cogent_mpc8260.h
+++ b/include/configs/cogent_mpc8260.h
@@ -160,6 +160,7 @@
#define CFG_CMA_CONS_SERIAL /* use Cogent motherboard serial for console */
#endif
#define CFG_CMA_LCD_HEARTBEAT /* define for sec rotator in lcd corner */
+#define CONFIG_SHOW_ACTIVITY
#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
/*
diff --git a/include/configs/cogent_mpc8xx.h b/include/configs/cogent_mpc8xx.h
index 2fd4037fd..51d4a7a7f 100644
--- a/include/configs/cogent_mpc8xx.h
+++ b/include/configs/cogent_mpc8xx.h
@@ -126,6 +126,7 @@
#define CFG_CMA_CONS_SERIAL /* use Cogent motherboard serial for console */
#define CONFIG_CONS_INDEX 1
#define CFG_CMA_LCD_HEARTBEAT /* define for sec rotator in lcd corner */
+#define CONFIG_SHOW_ACTIVITY
#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
/*
* flash exists on the motherboard
diff --git a/include/configs/cradle.h b/include/configs/cradle.h
index 13996d4ab..2cec4c7c5 100644
--- a/include/configs/cradle.h
+++ b/include/configs/cradle.h
@@ -47,6 +47,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/csb226.h b/include/configs/csb226.h
index 879607cb5..1b39d23c8 100644
--- a/include/configs/csb226.h
+++ b/include/configs/csb226.h
@@ -94,6 +94,7 @@
*
*/
#define CFG_MALLOC_LEN (128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
#define CFG_LONGHELP /* undef to save memory */
#define CFG_PROMPT "uboot> " /* Monitor Command Prompt */
diff --git a/include/configs/dnp1110.h b/include/configs/dnp1110.h
index 8594e6582..f3a871bda 100644
--- a/include/configs/dnp1110.h
+++ b/include/configs/dnp1110.h
@@ -47,6 +47,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/ep7312.h b/include/configs/ep7312.h
index 9a4c7e6ac..d9dd620c1 100644
--- a/include/configs/ep7312.h
+++ b/include/configs/ep7312.h
@@ -48,6 +48,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/impa7.h b/include/configs/impa7.h
index fb35bd4e7..b4c1edfa3 100644
--- a/include/configs/impa7.h
+++ b/include/configs/impa7.h
@@ -48,6 +48,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/innokom.h b/include/configs/innokom.h
index cfe903289..709c0d7a9 100644
--- a/include/configs/innokom.h
+++ b/include/configs/innokom.h
@@ -87,6 +87,7 @@
*
*/
#define CFG_MALLOC_LEN (256*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
#define CFG_LONGHELP /* undef to save memory */
#define CFG_PROMPT "uboot> " /* Monitor Command Prompt */
diff --git a/include/configs/lart.h b/include/configs/lart.h
index 32153fc52..c98f3777c 100644
--- a/include/configs/lart.h
+++ b/include/configs/lart.h
@@ -46,6 +46,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/lubbock.h b/include/configs/lubbock.h
index 609ce339a..bfced4420 100644
--- a/include/configs/lubbock.h
+++ b/include/configs/lubbock.h
@@ -52,6 +52,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/lwmon.h b/include/configs/lwmon.h
index 74511922d..04215a60e 100644
--- a/include/configs/lwmon.h
+++ b/include/configs/lwmon.h
@@ -113,6 +113,7 @@
#undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
#define CONFIG_WATCHDOG 1 /* watchdog enabled */
+#define CFG_WATCHDOG_FREQ (CFG_HZ / 20)
#undef CONFIG_STATUS_LED /* Status LED disabled */
diff --git a/include/configs/omap1510inn.h b/include/configs/omap1510inn.h
index 66a8b6bbd..845e4d247 100644
--- a/include/configs/omap1510inn.h
+++ b/include/configs/omap1510inn.h
@@ -27,6 +27,12 @@
#define __CONFIG_H
/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL /* undef for developing */
+
+/*
* High Level Configuration Options
* (easy to change)
*/
@@ -49,6 +55,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/omap1610inn.h b/include/configs/omap1610inn.h
index d65e2a01d..9bdd795b8 100644
--- a/include/configs/omap1610inn.h
+++ b/include/configs/omap1610inn.h
@@ -27,6 +27,12 @@
#define __CONFIG_H
/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL /* undef for developing */
+
+/*
* High Level Configuration Options
* (easy to change)
*/
@@ -50,6 +56,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
@@ -66,14 +73,13 @@
#define CFG_NS16550
#define CFG_NS16550_SERIAL
#define CFG_NS16550_REG_SIZE (-4)
-#define CFG_NS16550_CLK (48000000) /* can be 12M/32Khz or 48Mhz */
-#define CFG_NS16550_COM1 0xfffb0000 /* uart1, bluetooth uart
- on helen */
+#define CFG_NS16550_CLK (48000000) /* can be 12M/32Khz or 48Mhz */
+#define CFG_NS16550_COM1 0xfffb0000 /* uart1, bluetooth uart on helen */
/*
* select serial console configuration
*/
-#define CONFIG_SERIAL1 1 /* we use SERIAL 1 on OMAP1610 Innovator */
+#define CONFIG_SERIAL1 1 /* we use SERIAL 1 on OMAP1610 Innovator */
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
diff --git a/include/configs/shannon.h b/include/configs/shannon.h
index 77af2f3bc..7afe62d7c 100644
--- a/include/configs/shannon.h
+++ b/include/configs/shannon.h
@@ -52,6 +52,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/smdk2400.h b/include/configs/smdk2400.h
index a557bc6cf..a7621a2d1 100644
--- a/include/configs/smdk2400.h
+++ b/include/configs/smdk2400.h
@@ -55,6 +55,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/smdk2410.h b/include/configs/smdk2410.h
index 0dcbbb063..7e3a02d29 100644
--- a/include/configs/smdk2410.h
+++ b/include/configs/smdk2410.h
@@ -54,6 +54,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/trab.h b/include/configs/trab.h
index 4d37807e7..95ee37e2a 100644
--- a/include/configs/trab.h
+++ b/include/configs/trab.h
@@ -89,6 +89,7 @@
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
diff --git a/include/configs/wepep250.h b/include/configs/wepep250.h
index ecb7215e2..a8a8ee535 100644
--- a/include/configs/wepep250.h
+++ b/include/configs/wepep250.h
@@ -23,6 +23,12 @@
#ifndef __CONFIG_H
#define __CONFIG_H
+/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL /* undef for developing */
+
#define CONFIG_PXA250 1 /* this is an PXA250 CPU */
#define CONFIG_WEPEP250 1 /* config for wepep250 board */
#undef CONFIG_USE_IRQ /* don't need use IRQ/FIQ */
@@ -93,6 +99,7 @@
* Malloc pool need to host env + 128 Kb reserve for other allocations.
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + (128<<10) )
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
#define CONFIG_STACKSIZE (120<<10) /* stack size */
diff --git a/lib_arm/board.c b/lib_arm/board.c
index a6029b0f2..16e1575ed 100644
--- a/lib_arm/board.c
+++ b/lib_arm/board.c
@@ -149,7 +149,7 @@ static int display_dram_config (void)
return (0);
#endif
- puts ("DRAM Configuration:\n");
+ puts ("RAM Configuration:\n");
for(i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
@@ -173,7 +173,7 @@ static void display_flash_config (ulong size)
/*
- * Breath some life into the board...
+ * Breathe some life into the board...
*
* Initialize a serial port as console, and carry out some hardware
* tests.
@@ -219,8 +219,6 @@ void start_armboot (void)
DECLARE_GLOBAL_DATA_PTR;
ulong size;
- gd_t gd_data;
- bd_t bd_data;
init_fnc_t **init_fnc_ptr;
char *s;
#if defined(CONFIG_VFD)
@@ -228,9 +226,9 @@ void start_armboot (void)
#endif
/* Pointer is writable since we allocated a register for it */
- gd = &gd_data;
- memset ((void *)gd, 0, sizeof (gd_t));
- gd->bd = &bd_data;
+ gd = (gd_t*)(_armboot_start - CFG_MALLOC_LEN - sizeof(gd_t));
+ memset ((void*)gd, 0, sizeof (gd_t));
+ gd->bd = (bd_t*)((char*)gd - sizeof(bd_t));
memset (gd->bd, 0, sizeof (bd_t));
monitor_flash_len = _armboot_end_data - _armboot_start;
@@ -246,25 +244,21 @@ void start_armboot (void)
display_flash_config (size);
#ifdef CONFIG_VFD
-# ifndef PAGE_SIZE
-# define PAGE_SIZE 4096
-# endif
+# ifndef PAGE_SIZE
+# define PAGE_SIZE 4096
+# endif
/*
* reserve memory for VFD display (always full pages)
*/
- /* armboot_real_end is defined in the board-specific linker script */
- addr = (_armboot_real_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
+ /* armboot_end is defined in the board-specific linker script */
+ addr = (_armboot_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
size = vfd_setmem (addr);
gd->fb_base = addr;
- /* round to the next page boundary */
- addr += size;
- addr = (addr + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
- mem_malloc_init (addr);
-#else
- /* armboot_real_end is defined in the board-specific linker script */
- mem_malloc_init (_armboot_real_end);
#endif /* CONFIG_VFD */
+ /* armboot_start is defined in the board-specific linker script */
+ mem_malloc_init (_armboot_start - CFG_MALLOC_LEN);
+
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
puts ("NAND:");
nand_init(); /* go init the NAND */
@@ -281,10 +275,10 @@ void start_armboot (void)
#ifdef CONFIG_VFD
/* must do this after the framebuffer is allocated */
drv_vfd_init();
-#endif
+#endif /* CONFIG_VFD */
/* IP Address */
- bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr");
+ gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
/* MAC Address */
{
@@ -297,7 +291,7 @@ void start_armboot (void)
s = (i > 0) ? tmp : NULL;
for (reg = 0; reg < 6; ++reg) {
- bd_data.bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
+ gd->bd->bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
if (s)
s = (*e) ? e + 1 : e;
}
@@ -317,6 +311,7 @@ void start_armboot (void)
/* enable exceptions */
enable_interrupts ();
+ /* Perform network card initialisation if necessary */
#ifdef CONFIG_DRIVER_CS8900
cs8900_get_enetaddr (gd->bd->bi_enetaddr);
#endif
diff --git a/lib_ppc/Makefile b/lib_ppc/Makefile
index 36ddf3cac..652a4199e 100644
--- a/lib_ppc/Makefile
+++ b/lib_ppc/Makefile
@@ -28,7 +28,7 @@ LIB = lib$(ARCH).a
AOBJS = ppcstring.o ticks.o
COBJS = board.o \
- bat_rw.o cache.o extable.o kgdb.o time.o
+ bat_rw.o cache.o extable.o kgdb.o time.o interrupts.o
OBJS = $(AOBJS) $(COBJS)
diff --git a/lib_ppc/interrupts.c b/lib_ppc/interrupts.c
new file mode 100644
index 000000000..1e540a5c3
--- /dev/null
+++ b/lib_ppc/interrupts.c
@@ -0,0 +1,148 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2003
+ * Gleb Natapov <gnatapov@mrv.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/processor.h>
+#include <watchdog.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
+
+#ifdef CONFIG_SHOW_ACTIVITY
+ extern void board_show_activity (ulong);
+#endif /* CONFIG_SHOW_ACTIVITY */
+
+#ifndef CFG_WATCHDOG_FREQ
+#define CFG_WATCHDOG_FREQ (CFG_HZ / 2)
+#endif
+
+extern int interrupt_init_cpu (unsigned *);
+extern void timer_interrupt_cpu (struct pt_regs *);
+
+static unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
+
+static __inline__ unsigned long get_msr (void)
+{
+ unsigned long msr;
+
+ asm volatile ("mfmsr %0":"=r" (msr):);
+
+ return msr;
+}
+
+static __inline__ void set_msr (unsigned long msr)
+{
+ asm volatile ("mtmsr %0"::"r" (msr));
+}
+
+static __inline__ unsigned long get_dec (void)
+{
+ unsigned long val;
+
+ asm volatile ("mfdec %0":"=r" (val):);
+
+ return val;
+}
+
+
+static __inline__ void set_dec (unsigned long val)
+{
+ if (val)
+ asm volatile ("mtdec %0"::"r" (val));
+}
+
+
+void enable_interrupts (void)
+{
+ set_msr (get_msr () | MSR_EE);
+}
+
+/* returns flag if MSR_EE was set before */
+int disable_interrupts (void)
+{
+ ulong msr = get_msr ();
+
+ set_msr (msr & ~MSR_EE);
+ return ((msr & MSR_EE) != 0);
+}
+
+int interrupt_init (void)
+{
+ int ret;
+
+ /* call cpu specific function from $(CPU)/interrupts.c */
+ ret = interrupt_init_cpu (&decrementer_count);
+
+ if (ret)
+ return ret;
+
+ set_dec (decrementer_count);
+
+ set_msr (get_msr () | MSR_EE);
+
+ return (0);
+}
+
+static volatile ulong timestamp = 0;
+
+void timer_interrupt (struct pt_regs *regs)
+{
+ /* call cpu specific function from $(CPU)/interrupts.c */
+ timer_interrupt_cpu (regs);
+
+ /* Restore Decrementer Count */
+ set_dec (decrementer_count);
+
+ timestamp++;
+
+#if defined(CONFIG_WATCHDOG) || defined (CONFIG_HW_WATCHDOG)
+ if ((timestamp % (CFG_WATCHDOG_FREQ)) == 0)
+ WATCHDOG_RESET ();
+#endif /* CONFIG_WATCHDOG || CONFIG_HW_WATCHDOG */
+
+#ifdef CONFIG_STATUS_LED
+ status_led_tick (timestamp);
+#endif /* CONFIG_STATUS_LED */
+
+#ifdef CONFIG_SHOW_ACTIVITY
+ board_show_activity (timestamp);
+#endif /* CONFIG_SHOW_ACTIVITY */
+}
+
+void reset_timer (void)
+{
+ timestamp = 0;
+}
+
+ulong get_timer (ulong base)
+{
+ return (timestamp - base);
+}
+
+void set_timer (ulong t)
+{
+ timestamp = t;
+}
diff --git a/tools/Makefile b/tools/Makefile
index c191203e4..0576a3f43 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -180,12 +180,14 @@ else
endif
environment.c:
+ @rm -f environment.c
ln -s ../common/environment.c environment.c
environment.o: environment.c
$(CC) -g $(HOST_ENVIRO_CFLAGS) $(CPPFLAGS) -c $<
crc32.c:
+ @rm -f crc32.c
ln -s ../lib_generic/crc32.c crc32.c
$(LOGO_H): bmp_logo $(LOGO_BMP)