From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: [RFC PATCH V2 2/6] dirty hack, fixme: disable mmu_cache_flush in arch/arm/cpu/start.c for Tegra
Date: Fri, 28 Oct 2011 17:24:09 +0400 [thread overview]
Message-ID: <1319808253-16693-3-git-send-email-antonynpavlov@gmail.com> (raw)
In-Reply-To: <1319808253-16693-1-git-send-email-antonynpavlov@gmail.com>
Initial Tegra support has no initialisation routines, so
it can't initialise the caches in the right way.
MMU & cache code in arch/arm/cpu/start.c hangs up a Tegra-based system.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/arm/cpu/start.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index f8eb0a9..69fb5b0 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -74,6 +74,8 @@ void __naked __bare_init reset(void)
#ifdef CONFIG_ARCH_HAS_LOWLEVEL_INIT
arch_init_lowlevel();
#endif
+
+#ifndef CONFIG_ARCH_TEGRA
__asm__ __volatile__ (
"bl __mmu_cache_flush;"
:
@@ -89,6 +91,7 @@ void __naked __bare_init reset(void)
r |= CR_B;
#endif
set_cr(r);
+#endif
#ifdef CONFIG_MACH_DO_LOWLEVEL_INIT
board_init_lowlevel();
--
1.7.7
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next prev parent reply other threads:[~2011-10-28 13:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-28 13:24 [RFC PATCH V2 0/6] ARM: initial Tegra support Antony Pavlov
2011-10-28 13:24 ` [RFC PATCH V2 1/6] " Antony Pavlov
2011-10-28 13:24 ` Antony Pavlov [this message]
2011-10-28 13:24 ` [RFC PATCH V2 3/6] ARM: Tegra: add Toshiba AC100 support Antony Pavlov
2011-10-28 13:24 ` [RFC PATCH V2 4/6] toshiba-ac100: add USB host support Antony Pavlov
2011-10-28 13:24 ` [RFC PATCH V2 5/6] USB: set MAXINTERFACES=16, so Toshiba AC100 works correctly Antony Pavlov
2011-10-28 13:24 ` [RFC PATCH V2 6/6] add toshiba_ac100_defconfig Antony Pavlov
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