According to the PPC reference implementation the udelay() function is responsible for resetting the watchdog timer as frequently as needed. Most other architectures do not meet that requirement, so long-running operations might result in a watchdog reset.
This patch adds a generic udelay() function which takes care of resetting the watchdog before calling an architecture-specific __udelay().
Signed-off-by: Ingo van Lil inguin@gmx.de --- board/armltd/integrator/timer.c | 2 +- cpu/arm1136/mx31/timer.c | 2 +- cpu/arm1136/omap24xx/timer.c | 2 +- cpu/arm1176/s3c64xx/timer.c | 2 +- cpu/arm720t/interrupts.c | 4 +- cpu/arm920t/at91rm9200/timer.c | 2 +- cpu/arm920t/imx/timer.c | 2 +- cpu/arm920t/ks8695/timer.c | 2 +- cpu/arm920t/s3c24x0/timer.c | 2 +- cpu/arm925t/timer.c | 2 +- cpu/arm926ejs/at91/timer.c | 2 +- cpu/arm926ejs/davinci/timer.c | 2 +- cpu/arm926ejs/kirkwood/timer.c | 2 +- cpu/arm926ejs/mx27/timer.c | 2 +- cpu/arm926ejs/nomadik/timer.c | 2 +- cpu/arm926ejs/omap/timer.c | 2 +- cpu/arm926ejs/versatile/timer.c | 2 +- cpu/arm_cortexa8/omap3/timer.c | 2 +- cpu/at32ap/interrupts.c | 2 +- cpu/blackfin/interrupts.c | 2 +- cpu/i386/sc520/sc520_timer.c | 2 +- cpu/ixp/start.S | 4 +- cpu/ixp/timer.c | 2 +- cpu/lh7a40x/timer.c | 2 +- cpu/mcf547x_8x/slicetimer.c | 2 +- cpu/pxa/timer.c | 2 +- cpu/s3c44b0/timer.c | 2 +- cpu/sa1100/timer.c | 2 +- examples/api/libgenwrap.c | 2 +- include/asm-blackfin/delay.h | 2 +- include/exports.h | 2 +- lib_generic/Makefile | 1 + lib_generic/time.c | 43 +++++++++++++++++++++++++++++++++++++++ lib_i386/pcat_timer.c | 2 +- lib_m68k/time.c | 4 +- lib_microblaze/time.c | 4 +- lib_mips/time.c | 2 +- lib_nios/time.c | 3 +- lib_nios2/time.c | 3 +- lib_ppc/time.c | 16 ++----------- lib_sh/time.c | 2 +- lib_sh/time_sh2.c | 2 +- lib_sparc/time.c | 2 +- 43 files changed, 91 insertions(+), 59 deletions(-) create mode 100644 lib_generic/time.c
diff --git a/board/armltd/integrator/timer.c b/board/armltd/integrator/timer.c index 087cf59..7562ffa 100644 --- a/board/armltd/integrator/timer.c +++ b/board/armltd/integrator/timer.c @@ -124,7 +124,7 @@ void set_timer (ulong ticks) }
/* delay usec useconds */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo, tmp;
diff --git a/cpu/arm1136/mx31/timer.c b/cpu/arm1136/mx31/timer.c index 29b484e..7972ba0 100644 --- a/cpu/arm1136/mx31/timer.c +++ b/cpu/arm1136/mx31/timer.c @@ -152,7 +152,7 @@ void set_timer (ulong t) }
/* delay x useconds AND perserve advance timstamp value */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { unsigned long long tmp; ulong tmo; diff --git a/cpu/arm1136/omap24xx/timer.c b/cpu/arm1136/omap24xx/timer.c index 8dd8d7b..6754749 100644 --- a/cpu/arm1136/omap24xx/timer.c +++ b/cpu/arm1136/omap24xx/timer.c @@ -74,7 +74,7 @@ void set_timer (ulong t) }
/* delay x useconds AND perserve advance timstamp value */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo, tmp;
diff --git a/cpu/arm1176/s3c64xx/timer.c b/cpu/arm1176/s3c64xx/timer.c index 22a5b77..dc8c021 100644 --- a/cpu/arm1176/s3c64xx/timer.c +++ b/cpu/arm1176/s3c64xx/timer.c @@ -164,7 +164,7 @@ void set_timer(ulong t) timestamp = t * (timer_load_val / (100 * CONFIG_SYS_HZ)); }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { unsigned long long tmp; ulong tmo; diff --git a/cpu/arm720t/interrupts.c b/cpu/arm720t/interrupts.c index 91d552c..eb8d425 100644 --- a/cpu/arm720t/interrupts.c +++ b/cpu/arm720t/interrupts.c @@ -224,7 +224,7 @@ void set_timer (ulong t) timestamp = t; }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo;
@@ -296,7 +296,7 @@ ulong get_timer (ulong base) return timestamp - base; }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { u32 ticks;
diff --git a/cpu/arm920t/at91rm9200/timer.c b/cpu/arm920t/at91rm9200/timer.c index 235d107..9c54bbe 100644 --- a/cpu/arm920t/at91rm9200/timer.c +++ b/cpu/arm920t/at91rm9200/timer.c @@ -87,7 +87,7 @@ void set_timer (ulong t) timestamp = t; }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { udelay_masked(usec); } diff --git a/cpu/arm920t/imx/timer.c b/cpu/arm920t/imx/timer.c index 31ec588..b06b518 100644 --- a/cpu/arm920t/imx/timer.c +++ b/cpu/arm920t/imx/timer.c @@ -89,7 +89,7 @@ void udelay_masked (unsigned long usec) } while (diff >= 0); }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { udelay_masked(usec); } diff --git a/cpu/arm920t/ks8695/timer.c b/cpu/arm920t/ks8695/timer.c index 22987bc..886e370 100644 --- a/cpu/arm920t/ks8695/timer.c +++ b/cpu/arm920t/ks8695/timer.c @@ -81,7 +81,7 @@ void set_timer(ulong t) timer_ticks = t; }
-void udelay(ulong usec) +void __udelay(ulong usec) { ulong start = get_timer_masked(); ulong end; diff --git a/cpu/arm920t/s3c24x0/timer.c b/cpu/arm920t/s3c24x0/timer.c index c8c7cdb..1be9126 100644 --- a/cpu/arm920t/s3c24x0/timer.c +++ b/cpu/arm920t/s3c24x0/timer.c @@ -97,7 +97,7 @@ void set_timer (ulong t) timestamp = t; }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo; ulong start = get_timer(0); diff --git a/cpu/arm925t/timer.c b/cpu/arm925t/timer.c index c16ef25..7dfe2b5 100644 --- a/cpu/arm925t/timer.c +++ b/cpu/arm925t/timer.c @@ -81,7 +81,7 @@ void set_timer (ulong t) }
/* delay x useconds AND preserve advance timestamp value */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { int32_t tmo = usec * (TIMER_CLOCK / 1000) / 1000; uint32_t now, last = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM); diff --git a/cpu/arm926ejs/at91/timer.c b/cpu/arm926ejs/at91/timer.c index 811bb3c..7352b5c 100644 --- a/cpu/arm926ejs/at91/timer.c +++ b/cpu/arm926ejs/at91/timer.c @@ -105,7 +105,7 @@ ulong get_timer_masked(void) return tick_to_time(get_ticks()); }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { unsigned long long tmp; ulong tmo; diff --git a/cpu/arm926ejs/davinci/timer.c b/cpu/arm926ejs/davinci/timer.c index 80751ad..56ad55f 100644 --- a/cpu/arm926ejs/davinci/timer.c +++ b/cpu/arm926ejs/davinci/timer.c @@ -110,7 +110,7 @@ void set_timer(ulong t) timestamp = t; }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { ulong tmo; ulong endtime; diff --git a/cpu/arm926ejs/kirkwood/timer.c b/cpu/arm926ejs/kirkwood/timer.c index 817ff42..2ec6a93 100644 --- a/cpu/arm926ejs/kirkwood/timer.c +++ b/cpu/arm926ejs/kirkwood/timer.c @@ -125,7 +125,7 @@ void set_timer(ulong t) timestamp = t; }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { uint current; ulong delayticks; diff --git a/cpu/arm926ejs/mx27/timer.c b/cpu/arm926ejs/mx27/timer.c index 9011058..8f1d47b 100644 --- a/cpu/arm926ejs/mx27/timer.c +++ b/cpu/arm926ejs/mx27/timer.c @@ -177,7 +177,7 @@ void set_timer (ulong t) }
/* delay x useconds AND preserve advance timstamp value */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { unsigned long long tmp; ulong tmo; diff --git a/cpu/arm926ejs/nomadik/timer.c b/cpu/arm926ejs/nomadik/timer.c index 16067c9..047b9e3 100644 --- a/cpu/arm926ejs/nomadik/timer.c +++ b/cpu/arm926ejs/nomadik/timer.c @@ -59,7 +59,7 @@ ulong get_timer(ulong base) }
/* Delay x useconds */ -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { ulong ini, end;
diff --git a/cpu/arm926ejs/omap/timer.c b/cpu/arm926ejs/omap/timer.c index 392b158..2ac38c4 100644 --- a/cpu/arm926ejs/omap/timer.c +++ b/cpu/arm926ejs/omap/timer.c @@ -80,7 +80,7 @@ void set_timer (ulong t) }
/* delay x useconds AND perserve advance timstamp value */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo, tmp;
diff --git a/cpu/arm926ejs/versatile/timer.c b/cpu/arm926ejs/versatile/timer.c index 50c1335..563db36 100755 --- a/cpu/arm926ejs/versatile/timer.c +++ b/cpu/arm926ejs/versatile/timer.c @@ -109,7 +109,7 @@ void set_timer (ulong t) }
/* delay x useconds AND perserve advance timstamp value */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo, tmp;
diff --git a/cpu/arm_cortexa8/omap3/timer.c b/cpu/arm_cortexa8/omap3/timer.c index 12a16b3..401bfe6 100644 --- a/cpu/arm_cortexa8/omap3/timer.c +++ b/cpu/arm_cortexa8/omap3/timer.c @@ -82,7 +82,7 @@ void set_timer(ulong t) }
/* delay x useconds */ -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { long tmo = usec * (TIMER_CLOCK / 1000) / 1000; unsigned long now, last = readl(&timer_base->tcrr); diff --git a/cpu/at32ap/interrupts.c b/cpu/at32ap/interrupts.c index 75cc39e..c6d8d16 100644 --- a/cpu/at32ap/interrupts.c +++ b/cpu/at32ap/interrupts.c @@ -96,7 +96,7 @@ void set_timer(unsigned long t) /* * For short delays only. It will overflow after a few seconds. */ -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { unsigned long cycles; unsigned long base; diff --git a/cpu/blackfin/interrupts.c b/cpu/blackfin/interrupts.c index bf6fb4b..51e3940 100644 --- a/cpu/blackfin/interrupts.c +++ b/cpu/blackfin/interrupts.c @@ -63,7 +63,7 @@ int disable_interrupts(void) return 1; }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { unsigned long delay, start, stop; unsigned long cclk; diff --git a/cpu/i386/sc520/sc520_timer.c b/cpu/i386/sc520/sc520_timer.c index 23de14b..3c09182 100644 --- a/cpu/i386/sc520/sc520_timer.c +++ b/cpu/i386/sc520/sc520_timer.c @@ -67,7 +67,7 @@ int timer_init(void) return 0; }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { int m = 0; long u; diff --git a/cpu/ixp/start.S b/cpu/ixp/start.S index 196ba5d..5ebce53 100644 --- a/cpu/ixp/start.S +++ b/cpu/ixp/start.S @@ -505,8 +505,8 @@ reset_endless: /* * 0 <= r0 <= 2000 */ -.globl udelay -udelay: +.globl __udelay +__udelay: mov r2, #0x6800 orr r2, r2, #0x00db mul r0, r2, r0 diff --git a/cpu/ixp/timer.c b/cpu/ixp/timer.c index 6856149..edf341f 100644 --- a/cpu/ixp/timer.c +++ b/cpu/ixp/timer.c @@ -99,7 +99,7 @@ void ixp425_udelay(unsigned long usec) while (!(*IXP425_OSST & IXP425_OSST_TIMER_1_PEND)); }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { while (usec--) ixp425_udelay(1); } diff --git a/cpu/lh7a40x/timer.c b/cpu/lh7a40x/timer.c index f9b5be0..2691315 100644 --- a/cpu/lh7a40x/timer.c +++ b/cpu/lh7a40x/timer.c @@ -90,7 +90,7 @@ void set_timer (ulong t) timestamp = t; }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo,tmp;
diff --git a/cpu/mcf547x_8x/slicetimer.c b/cpu/mcf547x_8x/slicetimer.c index 67e8189..8dc010a 100644 --- a/cpu/mcf547x_8x/slicetimer.c +++ b/cpu/mcf547x_8x/slicetimer.c @@ -40,7 +40,7 @@ static ulong timestamp; #endif extern void dtimer_intr_setup(void);
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { volatile slt_t *timerp = (slt_t *) (CONFIG_SYS_UDELAY_BASE); u32 now, freq; diff --git a/cpu/pxa/timer.c b/cpu/pxa/timer.c index e2df3a5..8d0f826 100644 --- a/cpu/pxa/timer.c +++ b/cpu/pxa/timer.c @@ -78,7 +78,7 @@ void set_timer (ulong t) /* nop */ }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { udelay_masked (usec); } diff --git a/cpu/s3c44b0/timer.c b/cpu/s3c44b0/timer.c index 34184ab..6f1d8f6 100644 --- a/cpu/s3c44b0/timer.c +++ b/cpu/s3c44b0/timer.c @@ -75,7 +75,7 @@ void set_timer (ulong t) timestamp = t; }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { ulong tmo;
diff --git a/cpu/sa1100/timer.c b/cpu/sa1100/timer.c index 3f77e81..0207501 100644 --- a/cpu/sa1100/timer.c +++ b/cpu/sa1100/timer.c @@ -49,7 +49,7 @@ void set_timer (ulong t) /* nop */ }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { udelay_masked (usec); } diff --git a/examples/api/libgenwrap.c b/examples/api/libgenwrap.c index 2b62bad..2b107d9 100644 --- a/examples/api/libgenwrap.c +++ b/examples/api/libgenwrap.c @@ -74,7 +74,7 @@ void putc (const char c) ub_putc(c); }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { ub_udelay(usec); } diff --git a/include/asm-blackfin/delay.h b/include/asm-blackfin/delay.h index ea0b366..3af6ad3 100644 --- a/include/asm-blackfin/delay.h +++ b/include/asm-blackfin/delay.h @@ -47,7 +47,7 @@ extern __inline__ void __delay(unsigned long loops) * first constant multiplications gets optimized away if the delay is * a constant) */ -extern __inline__ void udelay(unsigned long usecs) +extern __inline__ void __udelay(unsigned long usecs) { __delay(usecs); } diff --git a/include/exports.h b/include/exports.h index 16ea03a..3e88b24 100644 --- a/include/exports.h +++ b/include/exports.h @@ -16,7 +16,7 @@ void install_hdlr(int, interrupt_handler_t*, void*); void free_hdlr(int); void *malloc(size_t); void free(void*); -void udelay(unsigned long); +void __udelay(unsigned long); unsigned long get_timer(unsigned long); void vprintf(const char *, va_list); void do_reset (void); diff --git a/lib_generic/Makefile b/lib_generic/Makefile index 686601c..918cdd7 100644 --- a/lib_generic/Makefile +++ b/lib_generic/Makefile @@ -44,6 +44,7 @@ COBJS-y += sha1.o COBJS-$(CONFIG_SHA256) += sha256.o COBJS-y += string.o COBJS-y += strmhz.o +COBJS-y += time.o COBJS-y += vsprintf.o COBJS-y += zlib.o COBJS-$(CONFIG_RBTREE) += rbtree.o diff --git a/lib_generic/time.c b/lib_generic/time.c new file mode 100644 index 0000000..a309c26 --- /dev/null +++ b/lib_generic/time.c @@ -0,0 +1,43 @@ +/* + * (C) Copyright 2000-2009 + * 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 <watchdog.h> + +#ifndef CONFIG_WD_PERIOD +# define CONFIG_WD_PERIOD (10 * 1000 * 1000) /* 10 seconds default*/ +#endif + +/* ------------------------------------------------------------------------- */ + +void udelay(unsigned long usec) +{ + ulong kv; + + do { + WATCHDOG_RESET(); + kv = usec > CONFIG_WD_PERIOD ? CONFIG_WD_PERIOD : usec; + __udelay (kv); + usec -= kv; + } while(usec); +} diff --git a/lib_i386/pcat_timer.c b/lib_i386/pcat_timer.c index c351b23..1373fd1 100644 --- a/lib_i386/pcat_timer.c +++ b/lib_i386/pcat_timer.c @@ -71,7 +71,7 @@ static u16 read_pit(void) }
/* this is not very exact */ -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { int counter; int wraps; diff --git a/lib_m68k/time.c b/lib_m68k/time.c index 29269f6..7eaea5e 100644 --- a/lib_m68k/time.c +++ b/lib_m68k/time.c @@ -47,7 +47,7 @@ static volatile ulong timestamp = 0; #endif extern void dtimer_intr_setup(void);
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { volatile dtmr_t *timerp = (dtmr_t *) (CONFIG_SYS_UDELAY_BASE); uint start, now, tmp; @@ -139,7 +139,7 @@ void set_timer(ulong t)
static unsigned short lastinc;
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { volatile pit_t *timerp = (pit_t *) (CONFIG_SYS_UDELAY_BASE); uint tmp; diff --git a/lib_microblaze/time.c b/lib_microblaze/time.c index cbb4341..da016a0 100644 --- a/lib_microblaze/time.c +++ b/lib_microblaze/time.c @@ -27,14 +27,14 @@ #include <common.h>
#ifdef CONFIG_SYS_TIMER_0 -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { int i; i = get_timer (0); while ((get_timer (0) - i) < (usec / 1000)) ; } #else -void udelay (unsigned long usec) +void __udelay (unsigned long usec) { unsigned int i; for (i = 0; i < (usec * CONFIG_XILINX_CLOCK_FREQ / 10000000); i++); diff --git a/lib_mips/time.c b/lib_mips/time.c index 07e356d..0e66441 100644 --- a/lib_mips/time.c +++ b/lib_mips/time.c @@ -70,7 +70,7 @@ void set_timer(ulong t) write_c0_compare(read_c0_count() + CYCLES_PER_JIFFY); }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { unsigned int tmo;
diff --git a/lib_nios/time.c b/lib_nios/time.c index 25a233e..d5096ee 100644 --- a/lib_nios/time.c +++ b/lib_nios/time.c @@ -27,13 +27,12 @@
extern void dly_clks( unsigned long ticks );
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { /* The Nios core doesn't have a timebase, so we do our * best for now and call a low-level loop that counts * cpu clocks. */ unsigned long cnt = (CONFIG_SYS_CLK_FREQ/1000000) * usec; - WATCHDOG_RESET (); /* trigger watchdog if needed */ dly_clks (cnt); } diff --git a/lib_nios2/time.c b/lib_nios2/time.c index 25a233e..d5096ee 100644 --- a/lib_nios2/time.c +++ b/lib_nios2/time.c @@ -27,13 +27,12 @@
extern void dly_clks( unsigned long ticks );
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { /* The Nios core doesn't have a timebase, so we do our * best for now and call a low-level loop that counts * cpu clocks. */ unsigned long cnt = (CONFIG_SYS_CLK_FREQ/1000000) * usec; - WATCHDOG_RESET (); /* trigger watchdog if needed */ dly_clks (cnt); } diff --git a/lib_ppc/time.c b/lib_ppc/time.c index 173ffab..2909961 100644 --- a/lib_ppc/time.c +++ b/lib_ppc/time.c @@ -23,10 +23,6 @@
#include <common.h>
-#ifndef CONFIG_WD_PERIOD -# define CONFIG_WD_PERIOD (10 * 1000 * 1000) /* 10 seconds default*/ -#endif - /* ------------------------------------------------------------------------- */
/* @@ -54,16 +50,10 @@ unsigned long usec2ticks(unsigned long usec) * microseconds to wait) into a number of time base ticks; then we * watch the time base until it has incremented by that amount. */ -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { - ulong ticks, kv; - - do { - kv = usec > CONFIG_WD_PERIOD ? CONFIG_WD_PERIOD : usec; - ticks = usec2ticks (kv); - wait_ticks (ticks); - usec -= kv; - } while(usec); + ulong ticks = usec2ticks (usec); + wait_ticks (ticks); }
/* ------------------------------------------------------------------------- */ diff --git a/lib_sh/time.c b/lib_sh/time.c index 52dbcd0..9a8f89a 100644 --- a/lib_sh/time.c +++ b/lib_sh/time.c @@ -105,7 +105,7 @@ unsigned long long get_ticks (void) return 0 - readl(TCNT0); }
-void udelay (unsigned long usec) +void __udelay (unsigned long usec) { unsigned long long tmp; ulong tmo; diff --git a/lib_sh/time_sh2.c b/lib_sh/time_sh2.c index 5c6c9d4..789b46f 100644 --- a/lib_sh/time_sh2.c +++ b/lib_sh/time_sh2.c @@ -103,7 +103,7 @@ void reset_timer(void) cmt_timer_start(0); }
-void udelay(unsigned long usec) +void __udelay(unsigned long usec) { unsigned long end = get_usec() + usec;
diff --git a/lib_sparc/time.c b/lib_sparc/time.c index 433f3eb..82b2a3a 100644 --- a/lib_sparc/time.c +++ b/lib_sparc/time.c @@ -53,7 +53,7 @@ unsigned long usec2ticks(unsigned long usec) * microseconds to wait) into a number of time base ticks; then we * watch the time base until it has incremented by that amount. */ -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { ulong ticks = usec2ticks(usec);