Merge remote-tracking branch 'remotes/philmd-gitlab/tags/renesas-hw-20200622' into staging

Renesas hardware patches

- Add a common entry for Renesas hardware in MAINTAINERS
- Trivial SH4 cleanups
- Add RX GDB simulator from Yoshinori Sato

The Renesas RX target emulation was added in commit c8c35e5f51,
these patches complete the target by adding the hardware emulation.

Tests included:

$ avocado --show=app,console run -t arch:rx tests/acceptance/
Fetching asset from tests/acceptance/machine_rx_gdbsim.py:RxGdbSimMachine.test_uboot
Fetching asset from tests/acceptance/machine_rx_gdbsim.py:RxGdbSimMachine.test_linux_sash
 (1/2) tests/acceptance/machine_rx_gdbsim.py:RxGdbSimMachine.test_uboot:
console: U-Boot 2016.05-rc3-23705-ga1ef3c71cb-dirty (Feb 05 2019 - 21:56:06 +0900)
PASS (0.26 s)
 (2/2) tests/acceptance/machine_rx_gdbsim.py:RxGdbSimMachine.test_linux_sash:
console: Linux version 4.19.0+ (yo-satoh@yo-satoh-debian) (gcc version 9.0.0 20181105 (experimental) (GCC)) #137 Wed Feb 20 23:20:02 JST 2019
console: Built 1 zonelists, mobility grouping on.  Total pages: 8128
console: Kernel command line:
console: Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
console: Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
console: Memory: 14648K/32768K available (871K kernel code, 95K rwdata, 140K rodata, 96K init, 175K bss, 18120K reserved, 0K cma-reserved)
console: NR_IRQS: 256
console: rx-cmt: used for periodic clock events
console: clocksource: rx-tpu: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1274173631191 ns
console: 96.00 BogoMIPS (lpj=480000)
console: pid_max: default: 4096 minimum: 301
console: Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
console: Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
console: clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
console: clocksource: Switched to clocksource rx-tpu
console: workingset: timestamp_bits=30 max_order=12 bucket_order=0
console: SuperH (H)SCI(F) driver initialized
console: 88240.serial: ttySC0 at MMIO 0x88240 (irq = 215, base_baud = 0) is a sci
console: console [ttySC0] enabled
console: 88248.serial: ttySC1 at MMIO 0x88248 (irq = 219, base_baud = 0) is a sci
console: random: get_random_bytes called from 0x01002e48 with crng_init=0
console: Freeing unused kernel memory: 96K
console: This architecture does not have kernel memory protection.
console: Run /sbin/init as init process
console: Run /etc/init as init process
console: Run /bin/init as init process
console: Run /bin/sh as init process
console: Sash command shell (version 1.1.1)
console: /> printenv
console: HOME=/
console: TERM=linux
PASS (0.73 s)
RESULTS    : PASS 2 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB TIME   : 1.47 s

CI results:
. https://cirrus-ci.com/build/6140199509950464
. https://travis-ci.org/github/philmd/qemu/builds/700954881
. https://app.shippable.com/github/philmd/qemu/runs/812/summary/console

# gpg: Signature made Mon 22 Jun 2020 19:52:09 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/renesas-hw-20200622:
  docs: Document the RX target
  BootLinuxConsoleTest: Test the RX GDB simulator
  hw/rx: Add RX GDB simulator
  hw/rx: Register R5F562N7 and R5F562N8 MCUs
  hw/rx: Honor -accel qtest
  hw/rx: RX62N microcontroller (MCU)
  hw/char: RX62N serial communication interface (SCI)
  hw/timer: RX62N compare match timer (CMT)
  hw/timer: RX62N 8-Bit timer (TMR)
  hw/intc: RX62N interrupt controller (ICUa)
  hw/timer/sh_timer: Remove unused 'qemu/timer.h' include
  hw/sh4: Extract timer definitions to 'hw/timer/tmu012.h'
  hw/sh4: Use MemoryRegion typedef
  MAINTAINERS: Add an entry for common Renesas peripherals
  MAINTAINERS: Cover sh_intc files in the R2D/Shix machine sections

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/tests/acceptance/machine_rx_gdbsim.py b/tests/acceptance/machine_rx_gdbsim.py
new file mode 100644
index 0000000000..a44f2c87da
--- /dev/null
+++ b/tests/acceptance/machine_rx_gdbsim.py
@@ -0,0 +1,68 @@
+# Functional test that boots a Linux kernel and checks the console
+#
+# Copyright (c) 2018 Red Hat, Inc.
+#
+# Author:
+#  Cleber Rosa <crosa@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
+
+from avocado_qemu import Test
+from avocado_qemu import exec_command_and_wait_for_pattern
+from avocado_qemu import wait_for_console_pattern
+from avocado.utils import archive
+
+
+class RxGdbSimMachine(Test):
+
+    timeout = 30
+    KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
+
+    def test_uboot(self):
+        """
+        U-Boot and checks that the console is operational.
+
+        :avocado: tags=arch:rx
+        :avocado: tags=machine:gdbsim-r5f562n8
+        :avocado: tags=endian:little
+        """
+        uboot_url = ('https://acc.dl.osdn.jp/users/23/23888/u-boot.bin.gz')
+        uboot_hash = '9b78dbd43b40b2526848c0b1ce9de02c24f4dcdb'
+        uboot_path = self.fetch_asset(uboot_url, asset_hash=uboot_hash)
+        uboot_path = archive.uncompress(uboot_path, self.workdir)
+
+        self.vm.set_console()
+        self.vm.add_args('-bios', uboot_path,
+                         '-no-reboot')
+        self.vm.launch()
+        uboot_version = 'U-Boot 2016.05-rc3-23705-ga1ef3c71cb-dirty'
+        wait_for_console_pattern(self, uboot_version)
+        gcc_version = 'rx-unknown-linux-gcc (GCC) 9.0.0 20181105 (experimental)'
+        # FIXME limit baudrate on chardev, else we type too fast
+        #exec_command_and_wait_for_pattern(self, 'version', gcc_version)
+
+    def test_linux_sash(self):
+        """
+        Boots a Linux kernel and checks that the console is operational.
+
+        :avocado: tags=arch:rx
+        :avocado: tags=machine:gdbsim-r5f562n7
+        :avocado: tags=endian:little
+        """
+        dtb_url = ('https://acc.dl.osdn.jp/users/23/23887/rx-qemu.dtb')
+        dtb_hash = '7b4e4e2c71905da44e86ce47adee2210b026ac18'
+        dtb_path = self.fetch_asset(dtb_url, asset_hash=dtb_hash)
+        kernel_url = ('http://acc.dl.osdn.jp/users/23/23845/zImage')
+        kernel_hash = '39a81067f8d72faad90866ddfefa19165d68fc99'
+        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
+
+        self.vm.set_console()
+        kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE + 'earlycon'
+        self.vm.add_args('-kernel', kernel_path,
+                         '-dtb', dtb_path,
+                         '-no-reboot')
+        self.vm.launch()
+        wait_for_console_pattern(self, 'Sash command shell (version 1.1.1)',
+                                 failure_message='Kernel panic - not syncing')
+        exec_command_and_wait_for_pattern(self, 'printenv', 'TERM=linux')