arm: boards: add mach-qemu and virt64 board

Introduce mach-qemu and add qemu virt64 board which emulates arm64 board.

Signed-off-by: Raphael Poggi <poggi.raph@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

5 files changed, 86 insertions, 0 deletions

diff --git a/arch/arm/mach-qemu/Kconfig b/arch/arm/mach-qemu/Kconfig
new file mode 100644
index 0000000000..d30bae4c6f
--- /dev/null
+++ b/arch/arm/mach-qemu/Kconfig
@@ -0,0 +1,18 @@
+if ARCH_QEMU
+
+config ARCH_TEXT_BASE
+	hex
+	default 0x40000000
+
+choice
+	prompt "ARM Board type"
+
+config MACH_QEMU_VIRT64
+	bool "QEMU arm64 virt machine"
+	select CPU_V8
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select ARM_AMBA
+	select HAVE_CONFIGURABLE_MEMORY_LAYOUT
+
+endchoice
+endif
diff --git a/arch/arm/mach-qemu/Makefile b/arch/arm/mach-qemu/Makefile
new file mode 100644
index 0000000000..ece277ce0e
--- /dev/null
+++ b/arch/arm/mach-qemu/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_MACH_QEMU_VIRT64) += virt_devices.o
diff --git a/arch/arm/mach-qemu/include/mach/debug_ll.h b/arch/arm/mach-qemu/include/mach/debug_ll.h
new file mode 100644
index 0000000000..89b06923ad
--- /dev/null
+++ b/arch/arm/mach-qemu/include/mach/debug_ll.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2013 Jean-Christophe PLAGNIOL-VILLARD <plagniol@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-qemu/include/mach/devices.h b/arch/arm/mach-qemu/include/mach/devices.h
new file mode 100644
index 0000000000..9872c61b49
--- /dev/null
+++ b/arch/arm/mach-qemu/include/mach/devices.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (C) 2016 Raphaël Poggi <poggi.raph@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-qemu/virt_devices.c b/arch/arm/mach-qemu/virt_devices.c
new file mode 100644
index 0000000000..999f463125
--- /dev/null
+++ b/arch/arm/mach-qemu/virt_devices.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2016 Raphaël Poggi <poggi.raph@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);
+}