ARM: qemu-arm: Add support for AArch64

This adds support for '-machine virt' on AArch64. This is rather simple:
we just add TARGET_QEMU_ARM_xxBIT to select a few different Kconfig
symbols, provide the ARMv8 memory map from the board file and add a new
defconfig based on the 32-bit defconfig.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9dc5426..f6d57f5 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -675,8 +675,6 @@ config ARCH_MX5
 
 config ARCH_QEMU
        bool "QEMU Virtual Platform"
-       select CPU_V7
-       select ARCH_SUPPORT_PSCI
        select DM
        select DM_SERIAL
        select OF_CONTROL

diff --git a/arch/arm/mach-qemu/Kconfig b/arch/arm/mach-qemu/Kconfig
index 3500b56..133163a 100644 (file)
--- a/arch/arm/mach-qemu/Kconfig
+++ b/arch/arm/mach-qemu/Kconfig
@@ -10,3 +10,14 @@ config SYS_CONFIG_NAME
        default "qemu-arm"
 
 endif
+
+config TARGET_QEMU_ARM_32BIT
+       bool "Support qemu_arm"
+       depends on ARCH_QEMU
+       select CPU_V7
+       select ARCH_SUPPORT_PSCI
+
+config TARGET_QEMU_ARM_64BIT
+       bool "Support qemu_arm64"
+       depends on ARCH_QEMU
+       select ARM64

diff --git a/board/emulation/qemu-arm/MAINTAINERS b/board/emulation/qemu-arm/MAINTAINERS
index a803061..e757ffc 100644 (file)
--- a/board/emulation/qemu-arm/MAINTAINERS
+++ b/board/emulation/qemu-arm/MAINTAINERS
@@ -4,3 +4,4 @@ S:      Maintained
 F:     board/emulation/qemu-arm/
 F:     include/configs/qemu-arm.h
 F:     configs/qemu_arm_defconfig
+F:     configs/qemu_arm64_defconfig

diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c
index e29ba46..1bc7edc 100644 (file)
--- a/board/emulation/qemu-arm/qemu-arm.c
+++ b/board/emulation/qemu-arm/qemu-arm.c
@@ -6,6 +6,41 @@
 #include <common.h>
 #include <fdtdec.h>
 
+#ifdef CONFIG_ARM64
+#include <asm/armv8/mmu.h>
+
+static struct mm_region qemu_arm64_mem_map[] = {
+       {
+               /* Flash */
+               .virt = 0x00000000UL,
+               .phys = 0x00000000UL,
+               .size = 0x08000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+                        PTE_BLOCK_INNER_SHARE
+       }, {
+               /* Peripherals */
+               .virt = 0x08000000UL,
+               .phys = 0x08000000UL,
+               .size = 0x38000000,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+                        PTE_BLOCK_NON_SHARE |
+                        PTE_BLOCK_PXN | PTE_BLOCK_UXN
+       }, {
+               /* RAM */
+               .virt = 0x40000000UL,
+               .phys = 0x40000000UL,
+               .size = 0xc0000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+                        PTE_BLOCK_INNER_SHARE
+       }, {
+               /* List terminator */
+               0,
+       }
+};
+
+struct mm_region *mem_map = qemu_arm64_mem_map;
+#endif
+
 int board_init(void)
 {
        return 0;

diff --git a/configs/qemu_arm64_defconfig b/configs/qemu_arm64_defconfig
new file mode 100644 (file)
index 0000000..4309bd2
--- /dev/null
+++ b/configs/qemu_arm64_defconfig
@@ -0,0 +1,29 @@
+CONFIG_ARM=y
+CONFIG_ARM_SMCCC=y
+CONFIG_ARCH_QEMU=y
+CONFIG_TARGET_QEMU_ARM_64BIT=y
+CONFIG_AHCI=y
+CONFIG_DISTRO_DEFAULTS=y
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_CMD_PCI=y
+CONFIG_CMD_USB=y
+CONFIG_OF_BOARD=y
+CONFIG_SCSI_AHCI=y
+CONFIG_AHCI_PCI=y
+CONFIG_BLK=y
+# CONFIG_MMC is not set
+CONFIG_DM_ETH=y
+CONFIG_E1000=y
+CONFIG_NVME=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_PCIE_ECAM_GENERIC=y
+CONFIG_SCSI=y
+CONFIG_DM_SCSI=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_PSCI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_PCI=y

diff --git a/configs/qemu_arm_defconfig b/configs/qemu_arm_defconfig
index 3cd4d45..db61b12 100644 (file)
--- a/configs/qemu_arm_defconfig
+++ b/configs/qemu_arm_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARM_SMCCC=y
 CONFIG_ARCH_QEMU=y
+CONFIG_TARGET_QEMU_ARM_32BIT=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y
 # CONFIG_DISPLAY_CPUINFO is not set