diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/Kconfig.debug | 8 | ||||
| -rw-r--r-- | arch/arm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/sun5i-olinuxino.dts | 26 | ||||
| -rw-r--r-- | arch/arm/boot/dts/sun5i.dtsi | 74 | ||||
| -rw-r--r-- | arch/arm/include/debug/sunxi.S | 24 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/Kconfig | 9 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/Makefile.boot | 1 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/sunxi.c | 60 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/sunxi.h | 20 |
12 files changed, 227 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c1cc4f79e4f..6c1d0198553 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1102,6 +1102,8 @@ 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/Kconfig.debug b/arch/arm/Kconfig.debug index 5566520686a..4c336c3c4d7 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -345,6 +345,13 @@ choice Say Y here if you want kernel low-level debugging support on SOCFPGA based platforms. + config DEBUG_SUNXI_UART1 + bool "Kernel low-level debugging messages via sunXi UART1" + depends on ARCH_SUNXI + help + Say Y here if you want kernel low-level debugging support + on Allwinner A1X based platforms on the UART1. + config DEBUG_VEXPRESS_UART0_DETECT bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" depends on ARCH_VEXPRESS && CPU_CP15_MMU @@ -424,6 +431,7 @@ config DEBUG_LL_INCLUDE default "debug/mvebu.S" if DEBUG_MVEBU_UART default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART default "debug/socfpga.S" if DEBUG_SOCFPGA_UART + default "debug/sunxi.S" if DEBUG_SUNXI_UART1 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \ DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1 default "mach/debug-macro.S" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 20891216782..58afa0dfcf7 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -194,6 +194,7 @@ machine-$(CONFIG_ARCH_SPEAR13XX) += spear13xx machine-$(CONFIG_ARCH_SPEAR3XX) += spear3xx machine-$(CONFIG_MACH_SPEAR600) += spear6xx machine-$(CONFIG_ARCH_ZYNQ) += zynq +machine-$(CONFIG_ARCH_SUNXI) += sunxi # Platform directory name. This list is sorted alphanumerically # by CONFIG_* macro name. diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index cc803c92a72..22e4ac9a4e7 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -86,6 +86,7 @@ dtb-$(CONFIG_ARCH_SPEAR3XX)+= spear300-evb.dtb \ spear310-evb.dtb \ spear320-evb.dtb dtb-$(CONFIG_ARCH_SPEAR6XX)+= spear600-evb.dtb +dtb-$(CONFIG_ARCH_SUNXI) += sun5i-olinuxino.dtb dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \ tegra20-medcom-wide.dtb \ tegra20-paz00.dtb \ diff --git a/arch/arm/boot/dts/sun5i-olinuxino.dts b/arch/arm/boot/dts/sun5i-olinuxino.dts new file mode 100644 index 00000000000..3b1cce3af7c --- /dev/null +++ b/arch/arm/boot/dts/sun5i-olinuxino.dts @@ -0,0 +1,26 @@ +/* + * Copyright 2012 Maxime Ripard + * + * Maxime Ripard <maxime.ripard@free-electrons.com> + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/dts-v1/; +/include/ "sun5i.dtsi" + +/ { + model = "Olimex A13-Olinuxino"; + compatible = "olimex,a13-olinuxino", "allwinner,sun5i"; + + soc { + duart: uart@01c28400 { + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi new file mode 100644 index 00000000000..4bedf3e826e --- /dev/null +++ b/arch/arm/boot/dts/sun5i.dtsi @@ -0,0 +1,74 @@ +/* + * Copyright 2012 Maxime Ripard + * + * Maxime Ripard <maxime.ripard@free-electrons.com> + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/include/ "skeleton.dtsi" + +/ { + interrupt-parent = <&intc>; + + cpus { + cpu@0 { + compatible = "arm,cortex-a8"; + }; + }; + + chosen { + bootargs = "earlyprintk console=ttyS0,115200"; + }; + + memory { + reg = <0x40000000 0x20000000>; + }; + + clocks { + #address-cells = <1>; + #size-cells = <0>; + + osc: oscillator { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24000000>; + }; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x01c20000 0x300000>; + ranges; + + timer@01c20c00 { + compatible = "allwinner,sunxi-timer"; + reg = <0x01c20c00 0x400>; + interrupts = <22>; + clocks = <&osc>; + }; + + intc: interrupt-controller@01c20400 { + compatible = "allwinner,sunxi-ic"; + reg = <0x01c20400 0x400>; + interrupt-controller; + #interrupt-cells = <1>; + }; + + uart1: uart@01c28400 { + compatible = "ns8250"; + reg = <0x01c28400 0x400>; + interrupts = <2>; + reg-shift = <2>; + clock-frequency = <24000000>; + status = "disabled"; + }; + }; +}; diff --git a/arch/arm/include/debug/sunxi.S b/arch/arm/include/debug/sunxi.S new file mode 100644 index 00000000000..3bf61ca0df7 --- /dev/null +++ b/arch/arm/include/debug/sunxi.S @@ -0,0 +1,24 @@ +/* + * Early serial output macro for Allwinner A1X SoCs + * + * Copyright (C) 2012 Maxime Ripard + * + * Maxime Ripard <maxime.ripard@free-electrons.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifdef CONFIG_DEBUG_SUNXI_UART1 +#define SUNXI_UART_DEBUG_PHYS_BASE 0x01c28400 +#define SUNXI_UART_DEBUG_VIRT_BASE 0xf1c28400 +#endif + + .macro addruart, rp, rv, tmp + ldr \rp, =SUNXI_UART_DEBUG_PHYS_BASE + ldr \rv, =SUNXI_UART_DEBUG_VIRT_BASE + .endm + +#define UART_SHIFT 2 +#include <asm/hardware/debug-8250.S> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig new file mode 100644 index 00000000000..3fdd0085e30 --- /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 00000000000..93bebfc3ff9 --- /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 00000000000..46d4cf0841c --- /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 00000000000..8f42df8af1d --- /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 00000000000..33b58712ade --- /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 */ |