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authorMaxime Ripard <maxime.ripard@free-electrons.com>2012-11-08 15:40:16 +0400
committerMaxime Ripard <maxime.ripard@free-electrons.com>2012-11-17 00:56:51 +0400
commit3b52634f0b7adaaf2b29569025287b938b7c71a6 (patch)
tree1388d7153ffbe0848496ee9dd21859c39b4b47b9
parentafd24e146826cec0f46929263a0c874406a19cd8 (diff)
downloadlinux-3b52634f0b7adaaf2b29569025287b938b7c71a6.tar.xz
ARM: sunxi: Add basic support for Allwinner A1x SoCs
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Stefan Roese <sr@denx.de>
-rw-r--r--Documentation/arm/sunxi/README19
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/Makefile1
-rw-r--r--arch/arm/mach-sunxi/Kconfig9
-rw-r--r--arch/arm/mach-sunxi/Makefile1
-rw-r--r--arch/arm/mach-sunxi/Makefile.boot1
-rw-r--r--arch/arm/mach-sunxi/sunxi.c60
-rw-r--r--arch/arm/mach-sunxi/sunxi.h20
8 files changed, 113 insertions, 0 deletions
diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README
new file mode 100644
index 000000000000..87a1e8fb6242
--- /dev/null
+++ b/Documentation/arm/sunxi/README
@@ -0,0 +1,19 @@
+ARM Allwinner SoCs
+==================
+
+This document lists all the ARM Allwinner SoCs that are currently
+supported in mainline by the Linux kernel. This document will also
+provide links to documentation and or datasheet for these SoCs.
+
+SunXi family
+------------
+
+ Flavors:
+ Allwinner A10 (sun4i)
+ Datasheet : http://dl.linux-sunxi.org/A10/A10%20Datasheet%20-%20v1.21%20%282012-04-06%29.pdf
+
+ Allwinner A13 (sun5i)
+ Datasheet : http://dl.linux-sunxi.org/A13/A13%20Datasheet%20-%20v1.12%20%282012-03-29%29.pdf
+
+ Core: Cortex A8
+ Linux kernel mach directory: arch/arm/mach-sunxi \ No newline at end of file
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ade7e924bef5..1abb573fef86 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1113,6 +1113,8 @@ source "arch/arm/mach-exynos/Kconfig"
source "arch/arm/mach-shmobile/Kconfig"
+source "arch/arm/mach-sunxi/Kconfig"
+
source "arch/arm/mach-prima2/Kconfig"
source "arch/arm/mach-tegra/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 5f914fca911b..363320ac9057 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -193,6 +193,7 @@ machine-$(CONFIG_ARCH_SPEAR13XX) += spear13xx
machine-$(CONFIG_ARCH_SPEAR3XX) += spear3xx
machine-$(CONFIG_MACH_SPEAR600) += spear6xx
machine-$(CONFIG_ARCH_ZYNQ) += zynq
+machine-$(CONFIG_ARCH_SUNXI) += sunxi
# Platform directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
new file mode 100644
index 000000000000..3fdd0085e306
--- /dev/null
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -0,0 +1,9 @@
+config ARCH_SUNXI
+ bool "Allwinner A1X SOCs" if ARCH_MULTI_V7
+ select CLKSRC_MMIO
+ select COMMON_CLK
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_CHIP
+ select PINCTRL
+ select SPARSE_IRQ
+ select SUNXI_TIMER
diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
new file mode 100644
index 000000000000..93bebfc3ff9f
--- /dev/null
+++ b/arch/arm/mach-sunxi/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_SUNXI) += sunxi.o
diff --git a/arch/arm/mach-sunxi/Makefile.boot b/arch/arm/mach-sunxi/Makefile.boot
new file mode 100644
index 000000000000..46d4cf0841c0
--- /dev/null
+++ b/arch/arm/mach-sunxi/Makefile.boot
@@ -0,0 +1 @@
+zreladdr-$(CONFIG_ARCH_SUNXI) += 0x40008000
diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
new file mode 100644
index 000000000000..8f42df8af1da
--- /dev/null
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -0,0 +1,60 @@
+/*
+ * Device Tree support for Allwinner A1X SoCs
+ *
+ * Copyright (C) 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/io.h>
+#include <linux/sunxi_timer.h>
+
+#include <linux/irqchip/sunxi.h>
+
+#include <asm/hardware/vic.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "sunxi.h"
+
+static struct map_desc sunxi_io_desc[] __initdata = {
+ {
+ .virtual = (unsigned long) SUNXI_REGS_VIRT_BASE,
+ .pfn = __phys_to_pfn(SUNXI_REGS_PHYS_BASE),
+ .length = SUNXI_REGS_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+void __init sunxi_map_io(void)
+{
+ iotable_init(sunxi_io_desc, ARRAY_SIZE(sunxi_io_desc));
+}
+
+static void __init sunxi_dt_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char * const sunxi_board_dt_compat[] = {
+ "allwinner,sun5i",
+ NULL,
+};
+
+DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
+ .init_machine = sunxi_dt_init,
+ .map_io = sunxi_map_io,
+ .init_irq = sunxi_init_irq,
+ .handle_irq = sunxi_handle_irq,
+ .timer = &sunxi_timer,
+ .dt_compat = sunxi_board_dt_compat,
+MACHINE_END
diff --git a/arch/arm/mach-sunxi/sunxi.h b/arch/arm/mach-sunxi/sunxi.h
new file mode 100644
index 000000000000..33b58712adea
--- /dev/null
+++ b/arch/arm/mach-sunxi/sunxi.h
@@ -0,0 +1,20 @@
+/*
+ * Generic definitions for Allwinner SunXi SoCs
+ *
+ * Copyright (C) 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __MACH_SUNXI_H
+#define __MACH_SUNXI_H
+
+#define SUNXI_REGS_PHYS_BASE 0x01c00000
+#define SUNXI_REGS_VIRT_BASE IOMEM(0xf1c00000)
+#define SUNXI_REGS_SIZE (SZ_2M + SZ_1M)
+
+#endif /* __MACH_SUNXI_H */