Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210108' into staging

target-arm queue:
 * intc/arm_gic: Fix gic_irq_signaling_enabled() for vCPUs
 * target/arm: Fix MTE0_ACTIVE
 * target/arm: Implement v8.1M and Cortex-M55 model
 * hw/arm/highbank: Drop dead KVM support code
 * util/qemu-timer: Make timer_free() imply timer_del()
 * various devices: Use ptimer_free() in finalize function
 * docs/system: arm: Add sabrelite board description
 * sabrelite: Minor fixes to allow booting U-Boot

# gpg: Signature made Fri 08 Jan 2021 15:34:25 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210108: (23 commits)
  docs/system: arm: Add sabrelite board description
  hw/arm: sabrelite: Connect the Ethernet PHY at address 6
  hw/msic: imx6_ccm: Correct register value for silicon type
  hw/misc: imx6_ccm: Update PMU_MISC0 reset value
  exynos4210_mct: Use ptimer_free() in the finalize function to avoid memleaks
  musicpal: Use ptimer_free() in the finalize function to avoid memleaks
  mss-timer: Use ptimer_free() in the finalize function to avoid memleaks
  exynos4210_pwm: Use ptimer_free() in the finalize function to avoid memleaks
  exynos4210_rtc: Use ptimer_free() in the finalize function to avoid memleaks
  allwinner-a10-pit: Use ptimer_free() in the finalize function to avoid memleaks
  digic-timer: Use ptimer_free() in the finalize function to avoid memleaks
  target/arm: Remove timer_del()/timer_deinit() before timer_free()
  Remove superfluous timer_del() calls
  scripts/coccinelle: New script to remove unnecessary timer_del() calls
  util/qemu-timer: Make timer_free() imply timer_del()
  hw/arm/highbank: Drop dead KVM support code
  target/arm: Implement Cortex-M55 model
  target/arm: Implement FPCXT_NS fp system register
  target/arm: Correct store of FPSCR value via FPCXT_S
  hw/intc/armv7m_nvic: Correct handling of CCR.BFHFNMIGN
  ...

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

2 files changed, 120 insertions, 0 deletions

diff --git a/docs/system/arm/sabrelite.rst b/docs/system/arm/sabrelite.rst
new file mode 100644
index 0000000..7171331
--- /dev/null
+++ b/docs/system/arm/sabrelite.rst
@@ -0,0 +1,119 @@
+Boundary Devices SABRE Lite (``sabrelite``)
+===========================================
+
+Boundary Devices SABRE Lite i.MX6 Development Board is a low-cost development
+platform featuring the powerful Freescale / NXP Semiconductor's i.MX 6 Quad
+Applications Processor.
+
+Supported devices
+-----------------
+
+The SABRE Lite machine supports the following devices:
+
+ * Up to 4 Cortex A9 cores
+ * Generic Interrupt Controller
+ * 1 Clock Controller Module
+ * 1 System Reset Controller
+ * 5 UARTs
+ * 2 EPIC timers
+ * 1 GPT timer
+ * 2 Watchdog timers
+ * 1 FEC Ethernet controller
+ * 3 I2C controllers
+ * 7 GPIO controllers
+ * 4 SDHC storage controllers
+ * 4 USB 2.0 host controllers
+ * 5 ECSPI controllers
+ * 1 SST 25VF016B flash
+
+Please note above list is a complete superset the QEMU SABRE Lite machine can
+support. For a normal use case, a device tree blob that represents a real world
+SABRE Lite board, only exposes a subset of devices to the guest software.
+
+Boot options
+------------
+
+The SABRE Lite machine can start using the standard -kernel functionality
+for loading a Linux kernel, U-Boot bootloader or ELF executable.
+
+Running Linux kernel
+--------------------
+
+Linux mainline v5.10 release is tested at the time of writing. To build a Linux
+mainline kernel that can be booted by the SABRE Lite machine, simply configure
+the kernel using the imx_v6_v7_defconfig configuration:
+
+.. code-block:: bash
+
+  $ export ARCH=arm
+  $ export CROSS_COMPILE=arm-linux-gnueabihf-
+  $ make imx_v6_v7_defconfig
+  $ make
+
+To boot the newly built Linux kernel in QEMU with the SABRE Lite machine, use:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M sabrelite -smp 4 -m 1G \
+      -display none -serial null -serial stdio \
+      -kernel arch/arm/boot/zImage \
+      -dtb arch/arm/boot/dts/imx6q-sabrelite.dtb \
+      -initrd /path/to/rootfs.ext4 \
+      -append "root=/dev/ram"
+
+Running U-Boot
+--------------
+
+U-Boot mainline v2020.10 release is tested at the time of writing. To build a
+U-Boot mainline bootloader that can be booted by the SABRE Lite machine, use
+the mx6qsabrelite_defconfig with similar commands as described above for Linux:
+
+.. code-block:: bash
+
+  $ export CROSS_COMPILE=arm-linux-gnueabihf-
+  $ make mx6qsabrelite_defconfig
+
+Note we need to adjust settings by:
+
+.. code-block:: bash
+
+  $ make menuconfig
+
+then manually select the following configuration in U-Boot:
+
+  Device Tree Control > Provider of DTB for DT Control > Embedded DTB
+
+To start U-Boot using the SABRE Lite machine, provide the u-boot binary to
+the -kernel argument, along with an SD card image with rootfs:
+
+.. code-block:: bash
+
+  $ qemu-system-arm -M sabrelite -smp 4 -m 1G \
+      -display none -serial null -serial stdio \
+      -kernel u-boot
+
+The following example shows booting Linux kernel from dhcp, and uses the
+rootfs on an SD card. This requires some additional command line parameters
+for QEMU:
+
+.. code-block:: none
+
+  -nic user,tftp=/path/to/kernel/zImage \
+  -drive file=sdcard.img,id=rootfs -device sd-card,drive=rootfs
+
+The directory for the built-in TFTP server should also contain the device tree
+blob of the SABRE Lite board. The sample SD card image was populated with the
+root file system with one single partition. You may adjust the kernel "root="
+boot parameter accordingly.
+
+After U-Boot boots, type the following commands in the U-Boot command shell to
+boot the Linux kernel:
+
+.. code-block:: none
+
+  => setenv ethaddr 00:11:22:33:44:55
+  => setenv bootfile zImage
+  => dhcp
+  => tftpboot 14000000 imx6q-sabrelite.dtb
+  => setenv bootargs root=/dev/mmcblk3p1
+  => bootz 12000000 - 14000000
diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst
index bde4b8e..edd013c 100644
--- a/docs/system/target-arm.rst
+++ b/docs/system/target-arm.rst
@@ -83,6 +83,7 @@ undocumented; you can get a complete list by running
    arm/versatile
    arm/vexpress
    arm/aspeed
+   arm/sabrelite
    arm/digic
    arm/musicpal
    arm/gumstix