From: Zhang Ying-B40530 <B40530@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/6] powerpc/mpc85xx: modify the functionality clear_bss and the end address of the BSS
Date: Wed, 22 May 2013 01:57:01 +0000 [thread overview]
Message-ID: <B3A295C5BD5B13458B2F5C6AFAD910466FCD38@039-SN2MPN1-023.039d.mgd.msft.net> (raw)
In-Reply-To: <1369165056.1374.10@scott-Lenovo-G560>
-----Original Message-----
From: Wood Scott-B07421
Sent: Wednesday, May 22, 2013 3:38 AM
To: Zhang Ying-B40530
Cc: u-boot at lists.denx.de; afleming at gmail.com; Xie Xiaobo-R63061; Zhang Ying-B40530
Subject: Re: [PATCH 2/6] powerpc/mpc85xx: modify the functionality clear_bss and the end address of the BSS
On 05/20/2013 01:07:24 AM, ying.zhang at freescale.com wrote:
> From: Ying Zhang <b40530@freescale.com>
>
> There will clear the BSS in the function clear_bss(), the reset
> address of
> the BSS started from the __bss_start, and increased by four-byte
> increments,
> finally stoped depending on the address is equal to the _bss_end. If
> the end
> address __bss_end is not alignment to 4byte, it will be an infinite
> loop.
>
> 1. The reset action stoped depending on the reset address is greater
> than or equal the end address of the BSS.
> 2. The end address of the BSS should be 4byte aligned. Because the
> reset unit
> is 4 Bytes.
Should we add explicit alignment of the BSS start as well?
[Zhang Ying]
That is better. I can add.
next prev parent reply other threads:[~2013-05-22 1:57 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 6:07 [U-Boot] [PATCH 1/6] powerpc/mpc85xx: support application without resetvec segment in the linker script ying.zhang at freescale.com
2013-05-20 6:07 ` [U-Boot] [PATCH 2/6] powerpc/mpc85xx: modify the functionality clear_bss and the end address of the BSS ying.zhang at freescale.com
2013-05-21 19:37 ` Scott Wood
2013-05-22 1:57 ` Zhang Ying-B40530 [this message]
2013-05-20 6:07 ` [U-Boot] [PATCH 3/6] common/Makefile: Add new symbol CONFIG_SPL_ENV_SUPPORT for environment in SPL ying.zhang at freescale.com
2013-05-23 15:36 ` Tom Rini
2013-06-21 20:47 ` [U-Boot] [U-Boot, " Andy Fleming
2013-05-20 6:07 ` [U-Boot] [PATCH 4/6] Makefile: move the common makefile line to public area ying.zhang at freescale.com
2013-05-24 16:04 ` Tom Rini
2013-06-06 8:51 ` Zhang Ying-B40530
2013-06-06 13:41 ` Tom Rini
2013-06-21 20:48 ` [U-Boot] [U-Boot, " Andy Fleming
2013-05-20 6:07 ` [U-Boot] [PATCH 5/6] spl: Make CONFIG_SPL_BUILD contain more functionality ying.zhang at freescale.com
2013-05-21 19:42 ` Scott Wood
2013-05-22 2:15 ` Zhang Ying-B40530
2013-05-22 15:45 ` Scott Wood
2013-05-23 1:26 ` Zhang Ying-B40530
2013-05-28 22:34 ` Scott Wood
2013-05-29 2:11 ` Zhang Ying-B40530
2013-05-29 22:54 ` Scott Wood
2013-05-24 16:07 ` Tom Rini
2013-05-24 16:11 ` Tom Rini
2013-05-24 19:08 ` Scott Wood
2013-05-24 19:18 ` Tom Rini
2013-05-27 7:43 ` Zhang Ying-B40530
2013-05-20 6:07 ` [U-Boot] [PATCH 6/6] powerpc/p1022ds: boot from SD Card with SPL ying.zhang at freescale.com
2013-05-23 2:29 ` Zhang Ying-B40530
2013-06-21 20:46 ` [U-Boot] [U-Boot, 1/6] powerpc/mpc85xx: support application without resetvec segment in the linker script Andy Fleming
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