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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PATCH 3/3][MIPS] lib_mips/time.c: Fix improper use of CFG_HZ and timer routines
Date: Sun, 25 May 2008 10:15:01 +0200	[thread overview]
Message-ID: <20080525081501.241BF247CC@gemini.denx.de> (raw)
In-Reply-To: Your message of "Sun, 25 May 2008 11:04:29 +0900." <4838C92D.7020700@ruby.dti.ne.jp>

In message <4838C92D.7020700@ruby.dti.ne.jp> you wrote:
> Wolfgang Denk wrote:
> > Be careful - keep in mind that variables in the data segment will  be
> > read-only  before  relocation  to  RAM,  and variables in BSS will be
> > uninitialized *and* get overwritten  with  zero  when  the  BSS  gets
> > initialized.
> 
> Sure. We'll probably need to move timer_init to board_init_r at the end.

I'm not sure if this works. We use udelay() and friends all over the
place - a long time before that.

The timer implementation should have no such restrictions as being
available only after relocation. Timers / delays are such a basic
feature that they should be available everywhere.

Best regards,


Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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  reply	other threads:[~2008-05-25  8:15 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-20 16:24 [U-Boot-Users] [PATCH] [resend] mips: Support to set CFG_HZ to 1000, consistent with other architectures Jason McMullan
2008-05-21  3:53 ` Shinya Kuribayashi
2008-05-21 15:32   ` Scott Wood
2008-05-24 12:58     ` [U-Boot-Users] [PATCH 1/3][MIPS] lib_mips/time.c: Replace CP0 access functions with existing macros Shinya Kuribayashi
2008-05-24 12:59       ` [U-Boot-Users] [PATCH 2/3][MIPS] lib_mips/time.c: Fix udelay Shinya Kuribayashi
2008-05-24 13:02         ` [U-Boot-Users] [PATCH 3/3][MIPS] lib_mips/time.c: Fix improper use of CFG_HZ and timer routines Shinya Kuribayashi
2008-05-24 19:59           ` Wolfgang Denk
2008-05-25  2:04             ` Shinya Kuribayashi
2008-05-25  8:15               ` Wolfgang Denk [this message]
2008-05-25 13:45                 ` Shinya Kuribayashi
2008-05-25 15:18                   ` Wolfgang Denk
2008-05-31  6:12                     ` Shinya Kuribayashi
2008-05-31  6:17                       ` Shinya Kuribayashi
2008-05-31 14:40           ` [U-Boot-Users] [PATCH 3/3 v2][MIPS] lib_mips/time.c: Fix CP0 count register usage " Shinya Kuribayashi

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