[PATCH 12/12] arm: boards: add virt board
Raphael Poggi
poggi.raph at gmail.com
Thu Jun 2 01:06:58 PDT 2016
Add qemu virt board which emulates arm64 board.
Signed-off-by: Raphael Poggi <poggi.raph at gmail.com>
---
arch/arm/Kconfig | 9 ++++
arch/arm/boards/Makefile | 1 +
arch/arm/boards/virt/Kconfig | 8 ++++
arch/arm/boards/virt/Makefile | 1 +
arch/arm/boards/virt/env/bin/_update | 36 ++++++++++++++++
arch/arm/boards/virt/env/bin/boot | 38 +++++++++++++++++
arch/arm/boards/virt/env/bin/init | 20 +++++++++
arch/arm/boards/virt/env/bin/update_kernel | 8 ++++
arch/arm/boards/virt/env/bin/update_root | 8 ++++
arch/arm/boards/virt/env/config | 38 +++++++++++++++++
arch/arm/boards/virt/env/init/mtdparts-nor | 11 +++++
arch/arm/boards/virt/init.c | 67 ++++++++++++++++++++++++++++++
arch/arm/configs/virt_defconfig | 55 ++++++++++++++++++++++++
arch/arm/mach-virt/Kconfig | 15 +++++++
arch/arm/mach-virt/Makefile | 3 ++
arch/arm/mach-virt/devices.c | 30 +++++++++++++
arch/arm/mach-virt/include/mach/debug_ll.h | 24 +++++++++++
arch/arm/mach-virt/include/mach/devices.h | 13 ++++++
arch/arm/mach-virt/lowlevel.c | 19 +++++++++
arch/arm/mach-virt/reset.c | 24 +++++++++++
20 files changed, 428 insertions(+)
create mode 100644 arch/arm/boards/virt/Kconfig
create mode 100644 arch/arm/boards/virt/Makefile
create mode 100644 arch/arm/boards/virt/env/bin/_update
create mode 100644 arch/arm/boards/virt/env/bin/boot
create mode 100644 arch/arm/boards/virt/env/bin/init
create mode 100644 arch/arm/boards/virt/env/bin/update_kernel
create mode 100644 arch/arm/boards/virt/env/bin/update_root
create mode 100644 arch/arm/boards/virt/env/config
create mode 100644 arch/arm/boards/virt/env/init/mtdparts-nor
create mode 100644 arch/arm/boards/virt/init.c
create mode 100644 arch/arm/configs/virt_defconfig
create mode 100644 arch/arm/mach-virt/Kconfig
create mode 100644 arch/arm/mach-virt/Makefile
create mode 100644 arch/arm/mach-virt/devices.c
create mode 100644 arch/arm/mach-virt/include/mach/debug_ll.h
create mode 100644 arch/arm/mach-virt/include/mach/devices.h
create mode 100644 arch/arm/mach-virt/lowlevel.c
create mode 100644 arch/arm/mach-virt/reset.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 986fdaa..71b90e7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -255,6 +255,14 @@ config ARCH_ZYNQ
bool "Xilinx Zynq-based boards"
select HAS_DEBUG_LL
+config ARCH_VIRT
+ bool "ARM QEMU virt boards"
+ select HAS_DEBUG_LL
+ select CPU_V8
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select ARM_AMBA
+ select HAVE_CONFIGURABLE_MEMORY_LAYOUT
+
endchoice
source arch/arm/cpu/Kconfig
@@ -280,6 +288,7 @@ source arch/arm/mach-vexpress/Kconfig
source arch/arm/mach-tegra/Kconfig
source arch/arm/mach-uemd/Kconfig
source arch/arm/mach-zynq/Kconfig
+source arch/arm/mach-virt/Kconfig
config ARM_ASM_UNIFIED
bool
diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 5a755c9..da0af74 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -134,3 +134,4 @@ obj-$(CONFIG_MACH_VIRT2REAL) += virt2real/
obj-$(CONFIG_MACH_ZEDBOARD) += avnet-zedboard/
obj-$(CONFIG_MACH_ZYLONITE) += zylonite/
obj-$(CONFIG_MACH_VARISCITE_MX6) += variscite-mx6/
+obj-$(CONFIG_MACH_VIRT) += virt/
diff --git a/arch/arm/boards/virt/Kconfig b/arch/arm/boards/virt/Kconfig
new file mode 100644
index 0000000..b239127
--- /dev/null
+++ b/arch/arm/boards/virt/Kconfig
@@ -0,0 +1,8 @@
+
+if MACH_VIRT
+
+config ARCH_TEXT_BASE
+ hex
+ default 0x40000000
+
+endif
diff --git a/arch/arm/boards/virt/Makefile b/arch/arm/boards/virt/Makefile
new file mode 100644
index 0000000..eb072c0
--- /dev/null
+++ b/arch/arm/boards/virt/Makefile
@@ -0,0 +1 @@
+obj-y += init.o
diff --git a/arch/arm/boards/virt/env/bin/_update b/arch/arm/boards/virt/env/bin/_update
new file mode 100644
index 0000000..014bce3
--- /dev/null
+++ b/arch/arm/boards/virt/env/bin/_update
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+if [ -z "$part" -o -z "$image" ]; then
+ echo "define \$part and \$image"
+ exit 1
+fi
+
+if [ ! -e "$part" ]; then
+ echo "Partition $part does not exist"
+ exit 1
+fi
+
+if [ $# = 1 ]; then
+ image=$1
+fi
+
+if [ x$ip = xdhcp ]; then
+ dhcp
+fi
+
+ping $eth0.serverip
+if [ $? -ne 0 ] ; then
+ echo "update aborted"
+ exit 1
+fi
+
+unprotect $part
+
+echo
+echo "erasing partition $part"
+erase $part
+
+echo
+echo "flashing $image to $part"
+echo
+tftp $image $part
diff --git a/arch/arm/boards/virt/env/bin/boot b/arch/arm/boards/virt/env/bin/boot
new file mode 100644
index 0000000..3859dc1
--- /dev/null
+++ b/arch/arm/boards/virt/env/bin/boot
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+. /env/config
+
+if [ x$1 = xflash ]; then
+ root=flash
+ kernel=flash
+fi
+
+if [ x$1 = xnet ]; then
+ root=net
+ kernel=net
+fi
+
+if [ x$ip = xdhcp ]; then
+ bootargs="$bootargs ip=dhcp"
+else
+ bootargs="$bootargs ip=$eth0.ipaddr:$eth0.serverip:$eth0.gateway:$eth0.netmask:::"
+fi
+
+if [ x$root = xflash ]; then
+ bootargs="$bootargs root=$rootpart rootfstype=jffs2"
+else
+ bootargs="$bootargs root=/dev/nfs nfsroot=$eth0.serverip:$nfsroot,v3,tcp"
+fi
+
+bootargs="$bootargs mtdparts=physmap-flash.0:$mtdparts"
+
+if [ $kernel = net ]; then
+ if [ x$ip = xdhcp ]; then
+ dhcp
+ fi
+ tftp $uimage uImage || exit 1
+ bootm uImage
+else
+ bootm /dev/nor0.kernel
+fi
+
diff --git a/arch/arm/boards/virt/env/bin/init b/arch/arm/boards/virt/env/bin/init
new file mode 100644
index 0000000..48e2139
--- /dev/null
+++ b/arch/arm/boards/virt/env/bin/init
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+PATH=/env/bin
+export PATH
+
+. /env/config
+addpart /dev/nor0 $mtdparts
+
+echo
+echo -n "Hit any key to stop autoboot: "
+timeout -a $autoboot_timeout
+if [ $? != 0 ]; then
+ echo
+ echo "type update_kernel [<imagename>] to update kernel into flash"
+ echo "type udate_root [<imagename>] to update rootfs into flash"
+ echo
+ exit
+fi
+
+boot
\ No newline at end of file
diff --git a/arch/arm/boards/virt/env/bin/update_kernel b/arch/arm/boards/virt/env/bin/update_kernel
new file mode 100644
index 0000000..1ad95fc
--- /dev/null
+++ b/arch/arm/boards/virt/env/bin/update_kernel
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+. /env/config
+
+image=$uimage
+part=/dev/nor0.kernel
+
+. /env/bin/_update $1
diff --git a/arch/arm/boards/virt/env/bin/update_root b/arch/arm/boards/virt/env/bin/update_root
new file mode 100644
index 0000000..b757a5b
--- /dev/null
+++ b/arch/arm/boards/virt/env/bin/update_root
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+. /env/config
+
+image=$jffs2
+part=/dev/nor0.root
+
+. /env/bin/_update $1
diff --git a/arch/arm/boards/virt/env/config b/arch/arm/boards/virt/env/config
new file mode 100644
index 0000000..6c0abda
--- /dev/null
+++ b/arch/arm/boards/virt/env/config
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# use 'dhcp' to do dhcp in barebox and in kernel
+# use 'none' if you want to skip kernel ip autoconfiguration
+ip=dhcp
+global.dhcp.vendor_id=barebox-${global.hostname}
+
+# or set your networking parameters here
+#eth0.ipaddr=a.b.c.d
+#eth0.netmask=a.b.c.d
+#eth0.gateway=a.b.c.d
+#eth0.serverip=a.b.c.d
+
+# can be either 'nfs', 'tftp' or 'nor'
+kernel_loc=tftp
+# can be either 'net', 'nor' or 'initrd'
+rootfs_loc=initrd
+
+# can be either 'jffs2' or 'ubifs'
+rootfs_type=ubifs
+rootfsimage=root.$rootfs_type
+
+kernelimage=zImage
+#kernelimage=uImage
+#kernelimage=Image
+#kernelimage=Image.lzo
+
+nfsroot="$eth0.serverip:/opt/work/busybox/arm9/rootfs_arm"
+
+nor_parts="256k(barebox)ro,64k(bareboxenv),1536k(kernel),-(root)"
+rootfs_mtdblock_nor=3
+
+autoboot_timeout=3
+
+bootargs="console=ttyAMA0,115200n8 CONSOLE=/dev/ttyAMA0"
+
+# set a fancy prompt (if support is compiled in)
+PS1="\e[1;31m[barebox@\h]:\w\e[0m\n# "
diff --git a/arch/arm/boards/virt/env/init/mtdparts-nor b/arch/arm/boards/virt/env/init/mtdparts-nor
new file mode 100644
index 0000000..3307596
--- /dev/null
+++ b/arch/arm/boards/virt/env/init/mtdparts-nor
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+ init-menu-add-entry "$0" "NOR partitions"
+ exit
+fi
+
+mtdparts="2048k at 0(nor0.barebox)ro,256k(nor0.barebox-env),256k(nor0.barebox-logo),256k(nor0.barebox-logo2),5120k(nor0.kernel),-(nor0.root)"
+kernelname="application-flash"
+
+mtdparts-add -d nor0 -k ${kernelname} -p ${mtdparts}
diff --git a/arch/arm/boards/virt/init.c b/arch/arm/boards/virt/init.c
new file mode 100644
index 0000000..9626067
--- /dev/null
+++ b/arch/arm/boards/virt/init.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2016 Raphaël Poggi <poggi.raph at gmail.com>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/armlinux.h>
+#include <asm/system_info.h>
+#include <mach/devices.h>
+#include <environment.h>
+#include <linux/sizes.h>
+#include <io.h>
+#include <globalvar.h>
+#include <asm/mmu.h>
+
+static int virt_mem_init(void)
+{
+ virt_add_ddram(SZ_512M);
+
+ add_cfi_flash_device(0, 0x00000000, SZ_4M, 0);
+
+ devfs_add_partition("nor0", 0x00000, 0x40000, DEVFS_PARTITION_FIXED, "self0");
+ devfs_add_partition("nor0", 0x40000, 0x20000, DEVFS_PARTITION_FIXED, "env0");
+
+ return 0;
+}
+mem_initcall(virt_mem_init);
+
+static int virt_console_init(void)
+{
+ virt_register_uart(0);
+
+ return 0;
+}
+console_initcall(virt_console_init);
+
+static int virt_core_init(void)
+{
+ char *hostname = "virt";
+
+ if (cpu_is_cortex_a53())
+ hostname = "virt-a53";
+ else if (cpu_is_cortex_a57())
+ hostname = "virt-a57";
+
+ barebox_set_model("ARM QEMU virt");
+ barebox_set_hostname(hostname);
+
+ return 0;
+}
+postcore_initcall(virt_core_init);
+
+static int virt_mmu_enable(void)
+{
+ /* Mapping all periph range */
+ arch_remap_range(0x09000000, 0x01000000, PMD_SECT_DEF_CACHED);
+
+ /* Mapping all flash range */
+ arch_remap_range(0x00000000, 0x08000000, PMD_SECT_DEF_CACHED);
+
+ mmu_enable();
+
+ return 0;
+}
+postmmu_initcall(virt_mmu_enable);
diff --git a/arch/arm/configs/virt_defconfig b/arch/arm/configs/virt_defconfig
new file mode 100644
index 0000000..567c0da
--- /dev/null
+++ b/arch/arm/configs/virt_defconfig
@@ -0,0 +1,55 @@
+CONFIG_ARCH_VIRT=y
+CONFIG_BAREBOX_MAX_IMAGE_SIZE=0x05000000
+CONFIG_AEABI=y
+CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
+CONFIG_MMU=y
+# CONFIG_MMU_EARLY is not set
+CONFIG_BAREBOX_MAX_BARE_INIT_SIZE=0x01000000
+CONFIG_MEMORY_LAYOUT_FIXED=y
+CONFIG_STACK_BASE=0x60000000
+CONFIG_MALLOC_BASE=0x50000000
+CONFIG_PROMPT="virt: "
+CONFIG_HUSH_FANCY_PROMPT=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_MENU=y
+CONFIG_PASSWORD=y
+CONFIG_PARTITION=y
+CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y
+CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/virt/env"
+CONFIG_DEBUG_INFO=y
+CONFIG_LONGHELP=y
+# CONFIG_CMD_BOOTM is not set
+# CONFIG_CMD_BOOTU is not set
+# CONFIG_CMD_MOUNT is not set
+# CONFIG_CMD_UMOUNT is not set
+# CONFIG_CMD_CAT is not set
+# CONFIG_CMD_CD is not set
+# CONFIG_CMD_CP is not set
+# CONFIG_CMD_LS is not set
+# CONFIG_CMD_MKDIR is not set
+# CONFIG_CMD_PWD is not set
+# CONFIG_CMD_RM is not set
+# CONFIG_CMD_RMDIR is not set
+# CONFIG_CMD_FALSE is not set
+# CONFIG_CMD_TEST is not set
+# CONFIG_CMD_TRUE is not set
+# CONFIG_CMD_CLEAR is not set
+# CONFIG_CMD_ECHO is not set
+CONFIG_CMD_CRC=y
+CONFIG_CMD_CRC_CMP=y
+# CONFIG_CMD_MD is not set
+# CONFIG_CMD_MEMCMP is not set
+# CONFIG_CMD_MEMCPY is not set
+# CONFIG_CMD_MEMSET is not set
+# CONFIG_CMD_MW is not set
+CONFIG_SERIAL_AMBA_PL011=y
+# CONFIG_SPI is not set
+CONFIG_MTD=y
+CONFIG_DRIVER_CFI=y
+CONFIG_DRIVER_CFI_BANK_WIDTH_8=y
+CONFIG_CFI_BUFFER_WRITE=y
+CONFIG_NAND=y
+# CONFIG_FS_RAMFS is not set
+CONFIG_DIGEST_SHA1_GENERIC=y
+CONFIG_DIGEST_SHA256_GENERIC=y
diff --git a/arch/arm/mach-virt/Kconfig b/arch/arm/mach-virt/Kconfig
new file mode 100644
index 0000000..1f43606
--- /dev/null
+++ b/arch/arm/mach-virt/Kconfig
@@ -0,0 +1,15 @@
+if ARCH_VIRT
+
+config ARCH_TEXT_BASE
+ hex
+ default 0x40000000
+
+choice
+ prompt "ARM Board type"
+
+config MACH_VIRT
+ bool "ARM QEMU virt"
+
+endchoice
+
+endif
diff --git a/arch/arm/mach-virt/Makefile b/arch/arm/mach-virt/Makefile
new file mode 100644
index 0000000..3924a10
--- /dev/null
+++ b/arch/arm/mach-virt/Makefile
@@ -0,0 +1,3 @@
+obj-y += devices.o reset.o
+
+lwl-y += lowlevel.o
diff --git a/arch/arm/mach-virt/devices.c b/arch/arm/mach-virt/devices.c
new file mode 100644
index 0000000..999f463
--- /dev/null
+++ b/arch/arm/mach-virt/devices.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2016 Raphaël Poggi <poggi.raph at gmail.com>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <linux/amba/bus.h>
+#include <asm/memory.h>
+#include <mach/devices.h>
+#include <linux/ioport.h>
+
+void virt_add_ddram(u32 size)
+{
+ arm_add_mem_device("ram0", 0x40000000, size);
+}
+
+void virt_register_uart(unsigned id)
+{
+ resource_size_t start;
+
+ switch (id) {
+ case 0:
+ start = 0x09000000;
+ break;
+ default:
+ return;
+ }
+ amba_apb_device_add(NULL, "uart-pl011", id, start, 4096, NULL, 0);
+}
diff --git a/arch/arm/mach-virt/include/mach/debug_ll.h b/arch/arm/mach-virt/include/mach/debug_ll.h
new file mode 100644
index 0000000..89b0692
--- /dev/null
+++ b/arch/arm/mach-virt/include/mach/debug_ll.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2013 Jean-Christophe PLAGNIOL-VILLARD <plagniol at jcrosoft.com>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __MACH_DEBUG_LL_H__
+#define __MACH_DEBUG_LL_H__
+
+#include <linux/amba/serial.h>
+#include <io.h>
+
+#define DEBUG_LL_PHYS_BASE 0x10000000
+#define DEBUG_LL_PHYS_BASE_RS1 0x1c000000
+
+#ifdef MP
+#define DEBUG_LL_UART_ADDR DEBUG_LL_PHYS_BASE
+#else
+#define DEBUG_LL_UART_ADDR DEBUG_LL_PHYS_BASE_RS1
+#endif
+
+#include <asm/debug_ll_pl011.h>
+
+#endif
diff --git a/arch/arm/mach-virt/include/mach/devices.h b/arch/arm/mach-virt/include/mach/devices.h
new file mode 100644
index 0000000..9872c61
--- /dev/null
+++ b/arch/arm/mach-virt/include/mach/devices.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (C) 2016 Raphaël Poggi <poggi.raph at gmail.com>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __ASM_ARCH_DEVICES_H__
+#define __ASM_ARCH_DEVICES_H__
+
+void virt_add_ddram(u32 size);
+void virt_register_uart(unsigned id);
+
+#endif /* __ASM_ARCH_DEVICES_H__ */
diff --git a/arch/arm/mach-virt/lowlevel.c b/arch/arm/mach-virt/lowlevel.c
new file mode 100644
index 0000000..6f695a5
--- /dev/null
+++ b/arch/arm/mach-virt/lowlevel.c
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio at jcrosoft.com>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <linux/sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <asm/system_info.h>
+
+void barebox_arm_reset_vector(void)
+{
+ arm_cpu_lowlevel_init();
+ arm_setup_stack(STACK_BASE);
+
+ barebox_arm_entry(0x40000000, SZ_512M, NULL);
+}
diff --git a/arch/arm/mach-virt/reset.c b/arch/arm/mach-virt/reset.c
new file mode 100644
index 0000000..fb895eb
--- /dev/null
+++ b/arch/arm/mach-virt/reset.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2016 Raphaël Poggi <poggi.raph at gmail.com>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <io.h>
+#include <init.h>
+#include <restart.h>
+#include <mach/devices.h>
+
+static void virt_reset_soc(struct restart_handler *rst)
+{
+ hang();
+}
+
+static int restart_register_feature(void)
+{
+ restart_handler_register_fn(virt_reset_soc);
+
+ return 0;
+}
+coredevice_initcall(restart_register_feature);
--
2.1.0
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