From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julien Grall <julien.grall@linaro.org>
Subject: Re: Question about running Xen 4.4 on Arndale board
Date: Mon, 14 Apr 2014 17:31:55 +0100
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To: HyonYoung Choi <commani@gmail.com>
Cc: Suriyan Ramasami <suriyan.r@gmail.com>, Meng Xu <xumengpanda@gmail.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
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On 04/14/2014 04:33 PM, HyonYoung Choi wrote:
> Hello Julien, 

> I'm Hyonyoung Choi, working on Xen into Arndale-Octa board with Meng.
> 
> I tried to recompiled xen with CONFIG_EARLY_PRINTK=exynos5250 as your
> advice.
> 
> The command line is like this:
> 
> make distclean
> export CONFIG_EARLY_PRINTK=exynos5250
> make dist-xen XEN_TARGET_ARCH=arm32
> 
> The result is nothing happened at all.
> No additional message is printed.

Sorry I misread the documentation, the UART port is not the same on the
exynos5420. Can you try to apply the patch below and recompile xen (make
clean make) with CONFIG_EARLY_PRINTK=exynos5420.

Regards,

commit 9595eedd366145b5b3e91b2b7cfa076cc2fc4174
Author: Julien Grall <julien.grall@linaro.org>
Date:   Mon Apr 14 17:24:54 2014 +0100

    xen/arm: Add early printk for Arndale Octa (exynos5420)

    Enable early printk for exynos5420.

    Signed-off-by: Julien Grall <julien.grall@linaro.org>

diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk
index c551afb..ddc2e28 100644
--- a/xen/arch/arm/Rules.mk
+++ b/xen/arch/arm/Rules.mk
@@ -57,6 +57,12 @@ EARLY_PRINTK_INIT_UART := y
 EARLY_PRINTK_BAUD := 115200
 EARLY_UART_BASE_ADDRESS := 0x12c20000
 endif
+ifeq ($(CONFIG_EARLY_PRINTK), exynos5420)
+EARLY_PRINTK_INC := exynos4210
+EARLY_PRINTK_INIT_UART := y
+EARLY_PRINTK_BAUD := 11520
+EARLY_UART_BASE_ADDRESS := 0x12c30000
+endif
 ifeq ($(CONFIG_EARLY_PRINTK), midway)
 EARLY_PRINTK_INC := pl011
 EARLY_PRINTK_BAUD := 115200



-- 
Julien Grall