From: Alexander Graf <agraf@suse.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: re-implement proper ISB instruction for ARMv7-A
Date: Thu, 28 Jul 2016 12:39:44 +0200 [thread overview]
Message-ID: <5799E0F0.9030608@suse.de> (raw)
In-Reply-To: <1469700807-22212-1-git-send-email-xzy.xu@rock-chips.com>
On 07/28/2016 12:13 PM, Ziyuan Xu wrote:
> For ARMv7-A architecture, the valid ISB instruction is asm volatile("isb").
>
> This patch fixes the U-Boot was stuck in invalidate_dcache_all() before
> booting linux kernel, which occurred on rk3288-base development board
> such as evb-rk3288, rock2-rk3288. And something output via console like:
>
> => bootz 0x2000000
> 0x02000000
> ramdisk start = 0x00000000, ramdisk end = 0x00000000
> Continuing to boot without FDT
> Initial value for argc=3
> Final value for argc=3
> using: ATAGS
>
> Starting kernel ...
>
> Linux kernel exactly the same way(see arch/arm/include/asm/barrier.h).
>
> Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Perfect! So with this, EFI support can still be in and things work fine?
Alex
next prev parent reply other threads:[~2016-07-28 10:39 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-28 10:13 [U-Boot] [PATCH] arm: re-implement proper ISB instruction for ARMv7-A Ziyuan Xu
2016-07-28 10:39 ` Alexander Graf [this message]
2016-07-28 12:03 ` Ziyuan Xu
2016-07-28 12:41 ` Sandy Patterson
2016-07-28 11:03 ` Chen-Yu Tsai
2016-07-28 11:51 ` Ziyuan Xu
2016-07-28 22:15 ` Tom Rini
2016-07-28 23:34 ` Ziyuan Xu
2016-07-29 0:34 ` Tom Rini
2016-07-29 1:06 ` Ziyuan Xu
2016-07-29 1:12 ` Tom Rini
2016-07-29 1:30 ` Ziyuan Xu
2016-07-31 3:59 ` Ziyuan Xu
2016-07-31 14:27 ` Tom Rini
2016-08-01 1:07 ` Ziyuan Xu
2016-07-28 22:16 ` Tom Rini
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