[U-Boot] [PATCH] OMAP-common/timer: Fix bss usage

Thomas Weber thomas.weber.linux at googlemail.com
Mon Nov 29 18:55:41 CET 2010


Hello Heiko,

On Mon, Nov 29, 2010 at 6:25 PM, Heiko Schocher <hs at denx.de> wrote:
> Hello Thomas,
>
> Thomas Weber wrote:
>> This patch fixes the bss usage in ARMv7/omap-common/timer.c
>>
>> The .bss section cannot be used before the relocation, because this
>> section is overlayed with .rel.dyn section.
>>
>> Suggested-by: Andreas Biessmann <andreas.devel at gmail.com>
>> Signed-off-by: Thomas Weber <weber at corscience.de>
>> ---
>>  arch/arm/cpu/armv7/omap-common/timer.c |    6 ++----
>>  1 files changed, 2 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/cpu/armv7/omap-common/timer.c b/arch/arm/cpu/armv7/omap-common/timer.c
>> index 6b8cf7b..b649b93 100644
>> --- a/arch/arm/cpu/armv7/omap-common/timer.c
>> +++ b/arch/arm/cpu/armv7/omap-common/timer.c
>> @@ -35,8 +35,8 @@
>>  #include <common.h>
>>  #include <asm/io.h>
>>
>> -static ulong timestamp;
>> -static ulong lastinc;
>> +static ulong timestamp = 0;
>> +static ulong lastinc = 0;
>>  static struct gptimer *timer_base = (struct gptimer *)CONFIG_SYS_TIMERBASE;
>>
>>  /*
>> @@ -54,8 +54,6 @@ int timer_init(void)
>>       writel((CONFIG_SYS_PTV << 2) | TCLR_PRE | TCLR_AR | TCLR_ST,
>>               &timer_base->tclr);
>>
>> -     reset_timer_masked();   /* init the timestamp and lastinc value */
>> -
>>       return 0;
>>  }
>
> Is this Ok? In actual reset_timer_masked() lastinc gets initialized with:
>
> lastinc = readl(&timer_base->tcrr) / (TIMER_CLOCK / CONFIG_SYS_HZ);
>
> and your patch changes that to lastinc = 0 ...
>
> bye,
> Heiko
> --
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or should it be moved into global_data struct like in commit 5dca710a for AT91?

Thomas


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