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| author | Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> | 2017-09-19 23:18:07 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-10-06 11:28:16 -0400 |
| commit | 32f11829266f2ede9afac051f980d4ae9b52f963 (patch) | |
| tree | c04cf39d1440814c1018564292a52c1eaf78be77 /arch | |
| parent | 3675cb044e68bc1145444f3c4f9af5c02864607b (diff) | |
ARM: Add a new arch + board for QEMU's 'virt' machine
This board builds an U-Boot binary that is bootable with QEMU's 'virt'
machine on ARM. The minimal QEMU command line is:
qemu-system-arm -machine virt,highmem=off -bios u-boot.bin
(Note that the 'highmem=off' parameter to the 'virt' machine is required for
PCI to work in U-Boot.) This command line enables the following:
- u-boot.bin loaded and executing in the emulated flash at address 0x0
- A generated device tree blob placed at the start of RAM
- A freely configurable amount of RAM, described by the DTB
- A PL011 serial port, discoverable via the DTB
- An ARMv7 architected timer
- PSCI for rebooting the system
- A generic ECAM-based PCI host controller, discoverable via the DTB
Additionally, QEMU allows plugging a bunch of useful peripherals to the PCI bus.
The following ones are supported by both U-Boot and Linux:
- To add a Serial ATA disk via an Intel ICH9 AHCI controller, pass e.g.:
-drive if=none,file=disk.img,id=mydisk -device ich9-ahci,id=ahci -device ide-drive,drive=mydisk,bus=ahci.0
- To add an Intel E1000 network adapter, pass e.g.:
-net nic,model=e1000 -net user
- To add an EHCI-compliant USB host controller, pass e.g.:
-device usb-ehci,id=ehci
- To add a NVMe disk, pass e.g.:
-drive if=none,file=disk.img,id=mydisk -device nvme,drive=mydisk,serial=foo
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 10 | ||||
| -rw-r--r-- | arch/arm/mach-qemu/Kconfig | 12 |
2 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5d1ce3e72d..64e0ee43f1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -631,6 +631,14 @@ config ARCH_MX5 select CPU_V7 select BOARD_EARLY_INIT_F +config ARCH_QEMU + bool "QEMU Virtual Platform" + select CPU_V7 + select ARCH_SUPPORT_PSCI + select DM + select DM_SERIAL + select OF_CONTROL + config ARCH_RMOBILE bool "Renesas ARM SoCs" select DM @@ -1171,6 +1179,8 @@ source "arch/arm/mach-rmobile/Kconfig" source "arch/arm/mach-meson/Kconfig" +source "arch/arm/mach-qemu/Kconfig" + source "arch/arm/mach-rockchip/Kconfig" source "arch/arm/mach-s5pc1xx/Kconfig" diff --git a/arch/arm/mach-qemu/Kconfig b/arch/arm/mach-qemu/Kconfig new file mode 100644 index 0000000000..3500b56cb0 --- /dev/null +++ b/arch/arm/mach-qemu/Kconfig @@ -0,0 +1,12 @@ +if ARCH_QEMU + +config SYS_VENDOR + default "emulation" + +config SYS_BOARD + default "qemu-arm" + +config SYS_CONFIG_NAME + default "qemu-arm" + +endif |