From: Sascha Hauer <s.hauer@pengutronix.de>
To: Luca Ceresoli <luca@lucaceresoli.net>
Cc: barebox@lists.infradead.org
Subject: Re: Regression: not booting anymore on OMAP35xx
Date: Tue, 22 Jun 2010 15:11:32 +0200 [thread overview]
Message-ID: <20100622131132.GK12115@pengutronix.de> (raw)
In-Reply-To: <L4F17N$3581604971B72AFF2E4EE2E9FBF2CD32@aruba.it>
Hi Luca,
On Tue, Jun 22, 2010 at 02:26:11PM +0200, Luca Ceresoli wrote:
> Hi,
>
> recent versions of barebox do not boot anymore on OMAP3530 (Cortex-A8).
>
> I build barebox with omap3530_beagle_per_uart_defconfig, and load it
> using pserial from Nishanth Menon's omap-u-boot-utils
> (http://github.com/nmenon/omap-u-boot-utils).
>
> Symptoms:
> pserial detects the OMAP ID, then starts sending via UART.
> The transfer apparently gets completed (obvious as there is no control),
> but after that the UART line to the target is totally mute.
>
> This happens since commit:
> 78104ae arm: reimplement startup code in C
>
> And is still happening on current master:
> ea5230c i2c: fix adapter_list manipulation
Seems that I lost the call to arch_init_lowlevel. Does the following
patch help?
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index eea7dcf..91d2ccd 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -50,6 +50,8 @@ void __naked __bare_init reset(void)
{
uint32_t r;
+ arch_init_lowlevel();
+
/* set the cpu to SVC32 mode */
__asm__ __volatile__("mrs %0, cpsr":"=r"(r));
r &= ~0x1f;
diff --git a/arch/arm/mach-omap/omap3_core.S b/arch/arm/mach-omap/omap3_core.S
index 7337d4c..d904231 100644
--- a/arch/arm/mach-omap/omap3_core.S
+++ b/arch/arm/mach-omap/omap3_core.S
@@ -92,7 +92,7 @@ next:
arch_start:
.word arch_init_lowlevel
barebox_start:
- .word _start
+ .word exception_vectors
SRAM_INTVECT:
.word OMAP_SRAM_INTVECT
--
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next prev parent reply other threads:[~2010-06-22 13:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-22 12:26 Luca Ceresoli
2010-06-22 13:11 ` Sascha Hauer [this message]
2010-06-22 14:04 Luca Ceresoli
2010-06-23 6:42 ` Sascha Hauer
2010-06-24 12:32 Luca Ceresoli
2010-06-24 15:41 ` Sascha Hauer
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