From 3b52634f0b7adaaf2b29569025287b938b7c71a6 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 8 Nov 2012 12:40:16 +0100 Subject: ARM: sunxi: Add basic support for Allwinner A1x SoCs Signed-off-by: Maxime Ripard Acked-by: Stefan Roese diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README new file mode 100644 index 0000000..87a1e8f --- /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 ade7e92..1abb573 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 5f914fc..363320a 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-$(CONFIG_ARCH_SUNXI) += sunxi # Platform directory name. This list is sorted alphanumerically # by CONFIG_* macro name. diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig new file mode 100644 index 0000000..3fdd008 --- /dev/null +++ b/arch/arm/mach-sunxi/Kconfig @@ -0,0 +1,9 @@ +config ARCH_SUNXI + bool "Allwinner A1X SOCs" if ARCH_MULTI_V7 + select CLKSRC_MMIO + select COMMON_CLK + select GENERIC_CLOCKEVENTS + select GENERIC_IRQ_CHIP + select PINCTRL + select SPARSE_IRQ + select SUNXI_TIMER diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile new file mode 100644 index 0000000..93bebfc --- /dev/null +++ b/arch/arm/mach-sunxi/Makefile @@ -0,0 +1 @@ +obj-$(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 0000000..46d4cf0 --- /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 0000000..8f42df8 --- /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 + * + * 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 +#include +#include +#include +#include +#include + +#include + +#include + +#include +#include + +#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 0000000..33b5871 --- /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 + * + * 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 */ -- cgit v0.10.2