提交 3b52634f 编写于 作者: M Maxime Ripard

ARM: sunxi: Add basic support for Allwinner A1x SoCs

Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NStefan Roese <sr@denx.de>
上级 afd24e14
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
......@@ -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"
......
......@@ -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-$(CONFIG_ARCH_SUNXI) += sunxi
# Platform directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
......
config ARCH_SUNXI
bool "Allwinner A1X SOCs" if ARCH_MULTI_V7
select CLKSRC_MMIO
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_CHIP
select PINCTRL
select SPARSE_IRQ
select SUNXI_TIMER
obj-$(CONFIG_ARCH_SUNXI) += sunxi.o
zreladdr-$(CONFIG_ARCH_SUNXI) += 0x40008000
/*
* 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
/*
* 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 */
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