[v3,2/7] ARM: sunxi: Split out the various machines into separate files

Message ID	1393949884-892-3-git-send-email-maxime.ripard@free-electrons.com (mailing list archive)
State	Superseded
Headers	show Return-Path: <dmaengine-owner@kernel.org> From: Maxime Ripard <maxime.ripard@free-electrons.com> To: Emilio Lopez <emilio@elopez.com.ar>, Dan Williams <dan.j.williams@intel.com>, Vinod Koul <vinod.koul@intel.com> Cc: Mike Turquette <mturquette@linaro.org>, linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, kevin.z.m.zh@gmail.com, sunny@allwinnertech.com, shuge@allwinnertech.com, zhuzhenhua@allwinnertech.com, andriy.shevchenko@intel.com, Maxime Ripard <maxime.ripard@free-electrons.com> Subject: [PATCH v3 2/7] ARM: sunxi: Split out the various machines into separate files Date: Tue, 4 Mar 2014 17:17:59 +0100 Message-Id: <1393949884-892-3-git-send-email-maxime.ripard@free-electrons.com> In-Reply-To: <1393949884-892-1-git-send-email-maxime.ripard@free-electrons.com> References: <1393949884-892-1-git-send-email-maxime.ripard@free-electrons.com> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk

diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile index d939720..6b3d36f 100644 --- a/arch/arm/mach-sunxi/Makefile +++ b/arch/arm/mach-sunxi/Makefile @@ -1,2 +1,6 @@ -obj-$(CONFIG_ARCH_SUNXI) += sunxi.o +obj-$(CONFIG_ARCH_SUNXI) += restart.o +obj-$(CONFIG_ARCH_SUNXI) += sun4i.o +obj-$(CONFIG_ARCH_SUNXI) += sun5i.o +obj-$(CONFIG_ARCH_SUNXI) += sun6i.o +obj-$(CONFIG_ARCH_SUNXI) += sun7i.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o diff --git a/arch/arm/mach-sunxi/restart.c b/arch/arm/mach-sunxi/restart.c new file mode 100644 index 0000000..60c2d5c --- /dev/null +++ b/arch/arm/mach-sunxi/restart.c @@ -0,0 +1,104 @@ +/* + * Restart code for Allwinner SoCs + * + * Copyright (C) 2012-2014 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/delay.h> +#include <linux/io.h> +#include <linux/mod_devicetable.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/reboot.h> + +#include "restart.h" + +#define SUN4I_WATCHDOG_CTRL_REG 0x00 +#define SUN4I_WATCHDOG_CTRL_RESTART BIT(0) +#define SUN4I_WATCHDOG_MODE_REG 0x04 +#define SUN4I_WATCHDOG_MODE_ENABLE BIT(0) +#define SUN4I_WATCHDOG_MODE_RESET_ENABLE BIT(1) + +#define SUN6I_WATCHDOG1_IRQ_REG 0x00 +#define SUN6I_WATCHDOG1_CTRL_REG 0x10 +#define SUN6I_WATCHDOG1_CTRL_RESTART BIT(0) +#define SUN6I_WATCHDOG1_CONFIG_REG 0x14 +#define SUN6I_WATCHDOG1_CONFIG_RESTART BIT(0) +#define SUN6I_WATCHDOG1_CONFIG_IRQ BIT(1) +#define SUN6I_WATCHDOG1_MODE_REG 0x18 +#define SUN6I_WATCHDOG1_MODE_ENABLE BIT(0) + +static void __iomem *wdt_base; + +void sun4i_restart(enum reboot_mode mode, const char *cmd) +{ + if (!wdt_base) + return; + + /* Enable timer and set reset bit in the watchdog */ + writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, + wdt_base + SUN4I_WATCHDOG_MODE_REG); + + /* + * Restart the watchdog. The default (and lowest) interval + * value for the watchdog is 0.5s. + */ + writel(SUN4I_WATCHDOG_CTRL_RESTART, wdt_base + SUN4I_WATCHDOG_CTRL_REG); + + while (1) { + mdelay(5); + writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, + wdt_base + SUN4I_WATCHDOG_MODE_REG); + } +} + +void sun6i_restart(enum reboot_mode mode, const char *cmd) +{ + if (!wdt_base) + return; + + /* Disable interrupts */ + writel(0, wdt_base + SUN6I_WATCHDOG1_IRQ_REG); + + /* We want to disable the IRQ and just reset the whole system */ + writel(SUN6I_WATCHDOG1_CONFIG_RESTART, + wdt_base + SUN6I_WATCHDOG1_CONFIG_REG); + + /* Enable timer. The default and lowest interval value is 0.5s */ + writel(SUN6I_WATCHDOG1_MODE_ENABLE, + wdt_base + SUN6I_WATCHDOG1_MODE_REG); + + /* Restart the watchdog. */ + writel(SUN6I_WATCHDOG1_CTRL_RESTART, + wdt_base + SUN6I_WATCHDOG1_CTRL_REG); + + while (1) { + mdelay(5); + writel(SUN6I_WATCHDOG1_MODE_ENABLE, + wdt_base + SUN6I_WATCHDOG1_MODE_REG); + } +} + +static struct of_device_id sunxi_restart_ids[] = { + { .compatible = "allwinner,sun4i-wdt" }, + { .compatible = "allwinner,sun6i-wdt" }, + { /*sentinel*/ } +}; + +void sunxi_setup_restart(void) +{ + struct device_node *np; + + np = of_find_matching_node(NULL, sunxi_restart_ids); + if (WARN(!np, "unable to setup watchdog restart")) + return; + + wdt_base = of_iomap(np, 0); + WARN(!wdt_base, "failed to map watchdog base address"); +} diff --git a/arch/arm/mach-sunxi/restart.h b/arch/arm/mach-sunxi/restart.h new file mode 100644 index 0000000..ef039db --- /dev/null +++ b/arch/arm/mach-sunxi/restart.h @@ -0,0 +1,20 @@ +/* + * Restart code for Allwinner SoCs + * + * Copyright (C) 2012-2014 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 _SUNXI_RESTART_H_ +#define _SUNXI_RESTART_H_ + +void sun4i_restart(enum reboot_mode mode, const char *cmd); +void sun6i_restart(enum reboot_mode mode, const char *cmd); +void sunxi_setup_restart(void); + +#endif diff --git a/arch/arm/mach-sunxi/sun4i.c b/arch/arm/mach-sunxi/sun4i.c new file mode 100644 index 0000000..fc28b89 --- /dev/null +++ b/arch/arm/mach-sunxi/sun4i.c @@ -0,0 +1,36 @@ +/* + * Device Tree support for Allwinner A10 SoCs + * + * Copyright (C) 2012-2014 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/init.h> +#include <linux/of_platform.h> + +#include <asm/mach/arch.h> + +#include "restart.h" + +static void __init sun4i_dt_init(void) +{ + sunxi_setup_restart(); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char * const sun4i_board_dt_compat[] = { + "allwinner,sun4i-a10", + NULL, +}; + +DT_MACHINE_START(SUN4I_DT, "Allwinner sun4i (A10) Family") + .init_machine = sun4i_dt_init, + .dt_compat = sun4i_board_dt_compat, + .restart = sun4i_restart, +MACHINE_END diff --git a/arch/arm/mach-sunxi/sun5i.c b/arch/arm/mach-sunxi/sun5i.c new file mode 100644 index 0000000..623a95a --- /dev/null +++ b/arch/arm/mach-sunxi/sun5i.c @@ -0,0 +1,37 @@ +/* + * Device Tree support for Allwinner A20 SoCs + * + * Copyright (C) 2013-2014 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/init.h> +#include <linux/of_platform.h> + +#include <asm/mach/arch.h> + +#include "restart.h" + +static void __init sun5i_dt_init(void) +{ + sunxi_setup_restart(); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char * const sun5i_board_dt_compat[] = { + "allwinner,sun5i-a10s", + "allwinner,sun5i-a13", + NULL, +}; + +DT_MACHINE_START(SUN5I_DT, "Allwinner sun5i (A13/A10s) Family") + .init_machine = sun5i_dt_init, + .dt_compat = sun5i_board_dt_compat, + .restart = sun4i_restart, +MACHINE_END diff --git a/arch/arm/mach-sunxi/sun6i.c b/arch/arm/mach-sunxi/sun6i.c new file mode 100644 index 0000000..c5dc819 --- /dev/null +++ b/arch/arm/mach-sunxi/sun6i.c @@ -0,0 +1,49 @@ +/* + * Device Tree support for Allwinner A31 SoCs + * + * Copyright (C) 2013-2014 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/clk-provider.h> +#include <linux/clocksource.h> +#include <linux/init.h> +#include <linux/of_platform.h> + +#include <asm/mach/arch.h> + +#include "common.h" +#include "restart.h" + +static void __init sun6i_dt_init(void) +{ + sunxi_setup_restart(); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +extern void __init sun6i_reset_init(void); +static void __init sun6i_timer_init(void) +{ + of_clk_init(NULL); + sun6i_reset_init(); + clocksource_of_init(); +} + +static const char * const sun6i_board_dt_compat[] = { + "allwinner,sun6i-a31", + NULL, +}; + +DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family") + .init_machine = sun6i_dt_init, + .init_time = sun6i_timer_init, + .dt_compat = sun6i_board_dt_compat, + .restart = sun6i_restart, + .smp = smp_ops(sun6i_smp_ops), +MACHINE_END diff --git a/arch/arm/mach-sunxi/sun7i.c b/arch/arm/mach-sunxi/sun7i.c new file mode 100644 index 0000000..2e6a8ee --- /dev/null +++ b/arch/arm/mach-sunxi/sun7i.c @@ -0,0 +1,36 @@ +/* + * Device Tree support for Allwinner A20 SoCs + * + * Copyright (C) 2013-2014 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/init.h> +#include <linux/of_platform.h> + +#include <asm/mach/arch.h> + +#include "restart.h" + +static void __init sun7i_dt_init(void) +{ + sunxi_setup_restart(); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char * const sun7i_board_dt_compat[] = { + "allwinner,sun7i-a20", + NULL, +}; + +DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family") + .init_machine = sun7i_dt_init, + .dt_compat = sun7i_board_dt_compat, + .restart = sun4i_restart, +MACHINE_END diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c deleted file mode 100644 index aeea6ce..0000000 --- a/arch/arm/mach-sunxi/sunxi.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * 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/clk-provider.h> -#include <linux/clocksource.h> -#include <linux/delay.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> -#include <linux/of_platform.h> -#include <linux/io.h> -#include <linux/reboot.h> - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/system_misc.h> - -#include "common.h" - -#define SUN4I_WATCHDOG_CTRL_REG 0x00 -#define SUN4I_WATCHDOG_CTRL_RESTART BIT(0) -#define SUN4I_WATCHDOG_MODE_REG 0x04 -#define SUN4I_WATCHDOG_MODE_ENABLE BIT(0) -#define SUN4I_WATCHDOG_MODE_RESET_ENABLE BIT(1) - -#define SUN6I_WATCHDOG1_IRQ_REG 0x00 -#define SUN6I_WATCHDOG1_CTRL_REG 0x10 -#define SUN6I_WATCHDOG1_CTRL_RESTART BIT(0) -#define SUN6I_WATCHDOG1_CONFIG_REG 0x14 -#define SUN6I_WATCHDOG1_CONFIG_RESTART BIT(0) -#define SUN6I_WATCHDOG1_CONFIG_IRQ BIT(1) -#define SUN6I_WATCHDOG1_MODE_REG 0x18 -#define SUN6I_WATCHDOG1_MODE_ENABLE BIT(0) - -static void __iomem *wdt_base; - -static void sun4i_restart(enum reboot_mode mode, const char *cmd) -{ - if (!wdt_base) - return; - - /* Enable timer and set reset bit in the watchdog */ - writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, - wdt_base + SUN4I_WATCHDOG_MODE_REG); - - /* - * Restart the watchdog. The default (and lowest) interval - * value for the watchdog is 0.5s. - */ - writel(SUN4I_WATCHDOG_CTRL_RESTART, wdt_base + SUN4I_WATCHDOG_CTRL_REG); - - while (1) { - mdelay(5); - writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, - wdt_base + SUN4I_WATCHDOG_MODE_REG); - } -} - -static void sun6i_restart(enum reboot_mode mode, const char *cmd) -{ - if (!wdt_base) - return; - - /* Disable interrupts */ - writel(0, wdt_base + SUN6I_WATCHDOG1_IRQ_REG); - - /* We want to disable the IRQ and just reset the whole system */ - writel(SUN6I_WATCHDOG1_CONFIG_RESTART, - wdt_base + SUN6I_WATCHDOG1_CONFIG_REG); - - /* Enable timer. The default and lowest interval value is 0.5s */ - writel(SUN6I_WATCHDOG1_MODE_ENABLE, - wdt_base + SUN6I_WATCHDOG1_MODE_REG); - - /* Restart the watchdog. */ - writel(SUN6I_WATCHDOG1_CTRL_RESTART, - wdt_base + SUN6I_WATCHDOG1_CTRL_REG); - - while (1) { - mdelay(5); - writel(SUN6I_WATCHDOG1_MODE_ENABLE, - wdt_base + SUN6I_WATCHDOG1_MODE_REG); - } -} - -static struct of_device_id sunxi_restart_ids[] = { - { .compatible = "allwinner,sun4i-wdt" }, - { .compatible = "allwinner,sun6i-wdt" }, - { /*sentinel*/ } -}; - -static void sunxi_setup_restart(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, sunxi_restart_ids); - if (WARN(!np, "unable to setup watchdog restart")) - return; - - wdt_base = of_iomap(np, 0); - WARN(!wdt_base, "failed to map watchdog base address"); -} - -static void __init sunxi_dt_init(void) -{ - sunxi_setup_restart(); - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} - -static const char * const sunxi_board_dt_compat[] = { - "allwinner,sun4i-a10", - "allwinner,sun5i-a10s", - "allwinner,sun5i-a13", - NULL, -}; - -DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)") - .init_machine = sunxi_dt_init, - .dt_compat = sunxi_board_dt_compat, - .restart = sun4i_restart, -MACHINE_END - -static const char * const sun6i_board_dt_compat[] = { - "allwinner,sun6i-a31", - NULL, -}; - -extern void __init sun6i_reset_init(void); -static void __init sun6i_timer_init(void) -{ - of_clk_init(NULL); - sun6i_reset_init(); - clocksource_of_init(); -} - -DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family") - .init_machine = sunxi_dt_init, - .init_time = sun6i_timer_init, - .dt_compat = sun6i_board_dt_compat, - .restart = sun6i_restart, - .smp = smp_ops(sun6i_smp_ops), -MACHINE_END - -static const char * const sun7i_board_dt_compat[] = { - "allwinner,sun7i-a20", - NULL, -}; - -DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family") - .init_machine = sunxi_dt_init, - .dt_compat = sun7i_board_dt_compat, - .restart = sun4i_restart, -MACHINE_END

[v3,2/7] ARM: sunxi: Split out the various machines into separate files

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