[PULL 15/16] tests/boot_linux_console: Add initrd test for the Exynos4210

[Cleber Rosa <crosa@redhat.com>]

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

This test boots a Linux kernel on a smdkc210 board and verify
the serial output is working.

The cpio image used comes from the linux-build-test project:
https://github.com/groeck/linux-build-test

If ARM is a target being built, "make check-acceptance" will
automatically include this test by the use of the "arch:arm" tags.

This test can be run using:

  $ IGNORE_AVOCADO_CONSOLE_BUG=yes \
    avocado --show=app,console run -t machine:smdkc210 \
      tests/acceptance/boot_linux_console.py
  console: Booting Linux on physical CPU 0x900
  console: Linux version 4.19.0-6-armmp (debian-kernel@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.67-2+deb10u1 (2019-09-20)
  console: CPU: ARMv7 Processor [410fc090] revision 0 (ARMv7), cr=10c5387d
  console: CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
  console: OF: fdt: Machine model: Samsung smdkv310 evaluation board based on Exynos4210
  [...]
  console: Samsung CPU ID: 0x43210211
  console: random: get_random_bytes called from start_kernel+0xa0/0x504 with crng_init=0
  console: percpu: Embedded 17 pages/cpu s39756 r8192 d21684 u69632
  console: Built 1 zonelists, mobility grouping on.  Total pages: 249152
  console: Kernel command line: printk.time=0 console=ttySAC0,115200n8 earlyprintk random.trust_cpu=off cryptomgr.notests cpuidle.off=1 panic=-1 noreboot
  [...]
  console: L2C: platform modifies aux control register: 0x02020000 -> 0x3e420001
  console: L2C: platform provided aux values permit register corruption.
  console: L2C: DT/platform modifies aux control register: 0x02020000 -> 0x3e420001
  console: L2C-310 erratum 769419 enabled
  console: L2C-310 enabling early BRESP for Cortex-A9
  console: L2C-310: enabling full line of zeros but not enabled in Cortex-A9
  console: L2C-310 ID prefetch enabled, offset 1 lines
  console: L2C-310 dynamic clock gating disabled, standby mode disabled
  console: L2C-310 cache controller enabled, 8 ways, 128 kB
  console: L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x7e420001
  console: Exynos4210 clocks: sclk_apll = 12000000, sclk_mpll = 12000000
  console: sclk_epll = 12000000, sclk_vpll = 12000000, arm_clk = 12000000
  [...]
  console: s3c-i2c 13860000.i2c: slave address 0x00
  console: s3c-i2c 13860000.i2c: bus frequency set to 93 KHz
  console: s3c-i2c 13860000.i2c: i2c-0: S3C I2C adapter
  [...]
  console: dma-pl330 12680000.pdma: Loaded driver for PL330 DMAC-241330
  console: dma-pl330 12680000.pdma:       DBUFF-256x8bytes Num_Chans-8 Num_Peri-32 Num_Events-16
  console: dma-pl330 12690000.pdma: Loaded driver for PL330 DMAC-241330
  console: dma-pl330 12690000.pdma:       DBUFF-256x8bytes Num_Chans-8 Num_Peri-32 Num_Events-16
  console: dma-pl330 12850000.mdma: Loaded driver for PL330 DMAC-241330
  console: dma-pl330 12850000.mdma:       DBUFF-256x8bytes Num_Chans-8 Num_Peri-1 Num_Events-16
  console: dma-pl330 12850000.mdma: PM domain LCD0 will not be powered off
  console: Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
  console: Serial: AMBA driver
  console: 13800000.serial: ttySAC0 at MMIO 0x13800000 (irq = 40, base_baud = 0) is a S3C6400/10
  console: console [ttySAC0] enabled
  console: 13810000.serial: ttySAC1 at MMIO 0x13810000 (irq = 41, base_baud = 0) is a S3C6400/10
  console: 13820000.serial: ttySAC2 at MMIO 0x13820000 (irq = 42, base_baud = 0) is a S3C6400/10
  console: 13830000.serial: ttySAC3 at MMIO 0x13830000 (irq = 43, base_baud = 0) is a S3C6400/10
  [...]
  console: Freeing unused kernel memory: 2048K
  console: Run /init as init process
  console: mount: mounting devtmpfs on /dev failed: Device or resource busy
  console: Starting logging: OK
  console: Initializing random number generator... random: dd: uninitialized urandom read (512 bytes read)
  console: done.
  console: Starting network: OK
  console: Found console ttySAC0
  console: Linux version 4.19.0-6-armmp (debian-kernel@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.67-2+deb10u1 (2019-09-20)
  console: Boot successful.
  PASS (37.98 s)

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20191028073441.6448-25-philmd@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
[Cleber: removed conditional to skip test]
Signed-off-by: Cleber Rosa <crosa@redhat.com>
---
 tests/acceptance/boot_linux_console.py | 41 ++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
index a4fa31b411..dab21b37c4 100644
--- a/tests/acceptance/boot_linux_console.py
+++ b/tests/acceptance/boot_linux_console.py
@@ -328,6 +328,47 @@ class BootLinuxConsole(Test):
         """
         self.do_test_arm_raspi2(0)
 
+    def test_arm_exynos4210_initrd(self):
+        """
+        :avocado: tags=arch:arm
+        :avocado: tags=machine:smdkc210
+        """
+        deb_url = ('https://snapshot.debian.org/archive/debian/'
+                   '20190928T224601Z/pool/main/l/linux/'
+                   'linux-image-4.19.0-6-armmp_4.19.67-2+deb10u1_armhf.deb')
+        deb_hash = 'fa9df4a0d38936cb50084838f2cb933f570d7d82'
+        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
+        kernel_path = self.extract_from_deb(deb_path,
+                                            '/boot/vmlinuz-4.19.0-6-armmp')
+        dtb_path = '/usr/lib/linux-image-4.19.0-6-armmp/exynos4210-smdkv310.dtb'
+        dtb_path = self.extract_from_deb(deb_path, dtb_path)
+
+        initrd_url = ('https://github.com/groeck/linux-build-test/raw/'
+                      '2eb0a73b5d5a28df3170c546ddaaa9757e1e0848/rootfs/'
+                      'arm/rootfs-armv5.cpio.gz')
+        initrd_hash = '2b50f1873e113523967806f4da2afe385462ff9b'
+        initrd_path_gz = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
+        initrd_path = os.path.join(self.workdir, 'rootfs.cpio')
+        archive.gzip_uncompress(initrd_path_gz, initrd_path)
+
+        self.vm.set_machine('smdkc210')
+        self.vm.set_console()
+        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
+                               'earlycon=exynos4210,0x13800000 earlyprintk ' +
+                               'console=ttySAC0,115200n8 ' +
+                               'random.trust_cpu=off cryptomgr.notests ' +
+                               'cpuidle.off=1 panic=-1 noreboot')
+
+        self.vm.add_args('-kernel', kernel_path,
+                         '-dtb', dtb_path,
+                         '-initrd', initrd_path,
+                         '-append', kernel_command_line,
+                         '-no-reboot')
+        self.vm.launch()
+
+        self.wait_for_console_pattern('Boot successful.')
+        # TODO user command, for now the uart is stuck
+
     def test_s390x_s390_ccw_virtio(self):
         """
         :avocado: tags=arch:s390x
-- 
2.21.0