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QEMU Nokia N900 (qemu-rx51)

From postmarketOS Wiki
Revision as of 10:44, 26 October 2018 by JLIT99 (talk | contribs)
Warning WARNING: This device is not recommended for future use with postmarketOS due to its armhf architecture. Alpine Linux (the distribution that postmarketOS extends) pmaports#599 has been considering dropping it.
The processor of the device may support the armv7 architecture. If so, you can modify the device package and change the architecture accordingly.
This device is marked as not booting.
QEMU N900
Manufacturer QEMU
Name N900
Codename qemu-rx51
Hardware
Architecture armhf
postmarketOS
Category testing
Pre-built images no


With 4.6 kernel, Pali's patch to mmc and right config with command line inside, qemu works for N900 emulation, including running Weston.

I'm using this config option to configure kernel:

CONFIG_CMDLINE="console=ttyO2,115200 console=tty root=/dev/mmcblk1p2 rootdelay=5 no-omap-wd no-ext-wd console=tty0 nokia-modem.pm=1 1 single"

And this script to prepare image / run it:

#!/usr/bin/python

import os
import time

def cmd(f):
    os.system(f)

class Run:
    def __init__(m):
        m.qemudir = "/data/l/maemo/qemu/"
        m.pmb_tmp = "/data/tmp/pmbootstrap"
        m.boot = m.pmb_tmp+"/chroot_rootfs_nokia-rx51/boot/"
        
    def run(m):
        # kernel = m.boot+"vmlinuz-postmarketos-dtb"
        kernel = "/data/l/linux-n900/arch/arm/boot/zImage-dtb"
        cmd("%s/qflasher -m rx51 -x %s/xloader-qemu.bin -s %s/secondary-qemu.bin -k %s -o n900.img -p k=16072" %
            (m.qemudir, m.qemudir, m.qemudir, kernel))

        #time.sleep(10)
        os.system("%s/qemu-system-arm -s -M n900 -mtdblock n900.img -sd /data/tmp/pmos.img -serial stdio -clock unix -redir tcp:5555:10.0.2.15:22" %
                  m.qemudir)

r = Run()
r.run()

Special qemu version with n900 support is likely needed.