Re: [Xen-devel] Question about running Xen 4.4 on Arndale board

[HyonYoung Choi <commani@xxxxxxxxx>]

Thanks for your comments.

I tried with Tod's comment of dtb and Julien's patch.

But no difference.

env setting:

-----------------------------------

setenv kernel_addr_r 0x60000000

setenv xen_addr_r 0x50000000

setenv dtb_addr_r 0x42000000

fatload mmc 0:2 $kernel_addr_r /zImage

fatload mmc 0:2 $xen_addr_r /xen-uImage

fatload mmc 0:2 $dtb_addr_r /exynos5420-arndale-octa.dtb

fdt addr $dtb_addr_r

fdt resize

setenv xen_bootargs 'sync_console console=dtuart dtuart=/serial@12C20000'

setenv dom0_bootargs 'console=hvc0 ignore_loglevel psci_enable clk_ignore_unused root=/dev/mmcblk1p3'

fdt set /chosen xen,xen-bootargs \"$xen_bootargs\"

fdt set /chosen xen,dom0-bootargs \"$dom0_bootargs\"

fdt mknode /chosen modules

fdt set /chosen/modules '#address-cells' <1>

fdt set /chosen/modules '#size-cells' <1>

fdt mknode /chosen/modules module@0

fdt set /chosen/modules/module@0 compatible "xen,linux-zimage" "xen,multiboot-module"

fdt set /chosen/modules/module@0 reg <$kernel_addr_r 0x00a00000> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ÂÂ

bootm $xen_addr_r - $dtb_addr_r

-----------------------------------

Log:

=============================

U-Boot 2012.07 (Feb 15 2014 - 17:29:55) for ARNDALE OCTA

CPU: Exynos5420 Rev2.0 [Samsung SOC on SMP Platform Base on ARM CortexA15]

APLL = 800MHz, KPLL = 600MHz

MPLL = 532MHz, BPLL = 800MHz

Board: ARNDALE OCTA

DRAM: Â2 GiB

WARNING: Caches not enabled

TrustZone Enabled BSP

BL1 version:Â

Checking Boot Mode ... SDMMC

MMC: Â S5P_MSHC2: 0, S5P_MSHC0: 1

MMC Device 0: 3.7 GiB

MMC Device 1: 3.6 GiB

MMC Device 2: MMC Device 2 not found

there are pending interrupts 0x00000001

*** Warning - bad CRC, using default environment

In: Â Âserial

Out: Â serial

Err: Â serial

Net: Â No ethernet found.

(Re)start USB...

USB: Â Register 1313 NbrPorts 3

USB EHCI 1.00

scanning bus for devices... The request port(2) is not configured

The request port(2) is not configured

3 USB Device(s) found

   Âscanning bus for storage devices... 0 Storage Device(s) found

   Âscanning usb for ethernet devices... 1 Ethernet Device(s) found

Hit any key to stop autoboot: Â0Â

reading boot.scr

989 bytes read

Running bootscript from mmc0:2 ...

## Executing script at 22000000

reading /zImage

2606416 bytes read

reading /xen-uImage

557904 bytes read

reading /exynos5420-arndale-octa.dtb

31105 bytes read

## Booting kernel from Legacy Image at 50000000 ...

 ÂImage Name: ÂÂ

 ÂImage Type:  ARM Linux Kernel Image (uncompressed)

 ÂData Size:  Â557840 Bytes = 544.8 KiB

 ÂLoad Address: 80200000

 ÂEntry Point: Â80200000

 ÂVerifying Checksum ... OK

## Flattened Device Tree blob at 42000000

 ÂBooting using the fdt blob at 0x42000000

 ÂLoading Kernel Image ... OK

OK

 Âreserving fdt memory region: addr=42000000 size=8000

 ÂLoading Device Tree to 2fff5000, end 2fffffff ... OK

Starting kernel ...

=======================

It is very wired that CONFIG_EARLY_PRINTK is not working.

If the patch is correct, is xen dead just at starting or totally wrong place of image?

Best,

Hyonyoung

On Mon, Apr 14, 2014 at 12:31 PM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:

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@xxxxxxxxxx>
Date: Â 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@xxxxxxxxxx>

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
ÂEARLY_PRINTK_BAUD := 115200
ÂEARLY_UART_BASE_ADDRESS := 0x12c20000
Âendif
+ifeq ($(CONFIG_EARLY_PRINTK), exynos5420)
+EARLY_PRINTK_INC := exynos4210
+EARLY_PRINTK_INIT_UART := y
+EARLY_PRINTK_BAUD := 11520
+EARLY_UART_BASE_ADDRESS := 0x12c30000
+endif
Âifeq ($(CONFIG_EARLY_PRINTK), midway)
ÂEARLY_PRINTK_INC := pl011
ÂEARLY_PRINTK_BAUD := 115200



--
Julien Grall

--

-------------------------------------
Graduate School of Convergence IT, Korea University

Research Professor,
Hyonoung Choi, Ph.D.

Â

Graduate School of Convergence IT, Korea University,
5-Ga, Anam-Dong, Sungbuk-Gu, Seoul 136-701, Republic of Korea.
TelÂÂÂ : +82-(0)2-3290-3640
Mobile : +82-(0)10-5353-0414
E-mail : neongas@xxxxxxxxxxx, commani@xxxxxxxxx
-------------------------------------

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