[1/1] : Convert arch-vt8500 to use .restart and remove arch_reset()

Message ID	001901cd63d6$8ee49a70$acadcf50$@digitalfantasy.co.nz (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> From: "Sentient" <sentient@digitalfantasy.co.nz> To: <linux-arm-kernel@lists.infradead.org> References: <000a01cd63d4$2875fc90$7961f5b0$@digitalfantasy.co.nz> In-Reply-To: Subject: [PATCH 1/1]: Convert arch-vt8500 to use .restart and remove arch_reset() Date: Tue, 17 Jul 2012 16:42:23 +1200 Message-ID: <001901cd63d6$8ee49a70$acadcf50$@digitalfantasy.co.nz> MIME-Version: 1.0 Thread-Index: AQJS1TvunL1aiwfCkkMFNNHWnKUDTZYiAMFAgAABaIA= Content-Language: en-nz summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [210.54.141.250 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org

diff --git a/arch/arm/mach-vt8500/Makefile b/arch/arm/mach-vt8500/Makefile index 81aedb7..54e6997 100644 --- a/arch/arm/mach-vt8500/Makefile +++ b/arch/arm/mach-vt8500/Makefile @@ -1,4 +1,4 @@ -obj-y += devices.o gpio.o irq.o timer.o +obj-y += devices.o gpio.o irq.o timer.o restart.o obj-$(CONFIG_VTWM_VERSION_VT8500) += devices-vt8500.o obj-$(CONFIG_VTWM_VERSION_WM8505) += devices-wm8505.o diff --git a/arch/arm/mach-vt8500/bv07.c b/arch/arm/mach-vt8500/bv07.c index a464c75..f9fbeb2 100644 --- a/arch/arm/mach-vt8500/bv07.c +++ b/arch/arm/mach-vt8500/bv07.c @@ -23,6 +23,7 @@ #include <asm/mach-types.h> #include <asm/mach/arch.h> +#include <mach/restart.h> #include "devices.h" @@ -62,6 +63,7 @@ void __init bv07_init(void) else printk(KERN_ERR "PMC Hibernation register could not be remapped, not enabling power off!\n"); + wmt_setup_restart(); vt8500_set_resources(); platform_add_devices(devices, ARRAY_SIZE(devices)); vt8500_gpio_init(); @@ -69,6 +71,7 @@ void __init bv07_init(void) MACHINE_START(BV07, "Benign BV07 Mini Netbook") .atag_offset = 0x100, + .restart = wmt_restart, .reserve = vt8500_reserve_mem, .map_io = vt8500_map_io, .init_irq = vt8500_init_irq, diff --git a/arch/arm/mach-vt8500/include/mach/restart.h b/arch/arm/mach-vt8500/include/mach/restart.h new file mode 100644 index 0000000..89f9b78 --- /dev/null +++ b/arch/arm/mach-vt8500/include/mach/restart.h @@ -0,0 +1,17 @@ +/* linux/arch/arm/mach-vt8500/restart.h + * + * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +void wmt_setup_restart(void); +void wmt_restart(char mode, const char *cmd); diff --git a/arch/arm/mach-vt8500/include/mach/system.h b/arch/arm/mach-vt8500/include/mach/system.h deleted file mode 100644 index 58fa801..0000000 --- a/arch/arm/mach-vt8500/include/mach/system.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * arch/arm/mach-vt8500/include/mach/system.h - * - */ -#include <asm/io.h> - -/* PM Software Reset request register */ -#define VT8500_PMSR_VIRT 0xf8130060 - -static inline void arch_reset(char mode, const char *cmd) -{ - writel(1, VT8500_PMSR_VIRT); -} diff --git a/arch/arm/mach-vt8500/restart.c b/arch/arm/mach-vt8500/restart.c new file mode 100644 index 0000000..78b4ab0 --- /dev/null +++ b/arch/arm/mach-vt8500/restart.c @@ -0,0 +1,60 @@ +/* linux/arch/arm/mach-vt8500/restart.c + * + * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#include <asm/io.h> +#include <linux/ioport.h> +#include <linux/of.h> +#include <linux/of_address.h> + +/* PM Software Reset request register */ +#define VT8500_PMSR_REG 0xD8130060 + +static void __iomem *wmt_restart_reg; + +void wmt_setup_restart(void) +{ + struct device_node *np; + + /* + * Check if rstc (Restart Controller) node is present in device + * tree. Device tree support is still WIP. If no device tree + * node, use the default PMSR value (valid for all current SoCs). + */ + np = of_find_compatible_node(NULL, NULL, "wmt,rstc"); + if (np) { + wmt_restart_reg = of_iomap(np, 0); + + if (!wmt_restart_reg) + pr_err("%s:of_iomap(rstc) failed\n", __func__); + + of_node_put(np); + } else { + if (!request_mem_region(VT8500_PMSR_REG, 4, NULL)) { + pr_err("%s:req_mem_region(rstc) failed\n", __func__); + return; + } + + wmt_restart_reg = ioremap(VT8500_PMSR_REG, 4); + if (!wmt_restart_reg) { + pr_err("%s:ioremap(rstc) failed\n", __func__); + return; + } + } +} + +void wmt_restart(char mode, const char *cmd) +{ + if (wmt_restart_reg) + writel(1, wmt_restart_reg); +} diff --git a/arch/arm/mach-vt8500/wm8505_7in.c b/arch/arm/mach-vt8500/wm8505_7in.c index cf910a9..db19886 100644 --- a/arch/arm/mach-vt8500/wm8505_7in.c +++ b/arch/arm/mach-vt8500/wm8505_7in.c @@ -23,6 +23,7 @@ #include <asm/mach-types.h> #include <asm/mach/arch.h> +#include <mach/restart.h> #include "devices.h" @@ -61,7 +62,7 @@ void __init wm8505_7in_init(void) pm_power_off = &vt8500_power_off; else printk(KERN_ERR "PMC Hibernation register could not be remapped, not enabling power off!\n"); - + wmt_setup_restart(); wm8505_set_resources(); platform_add_devices(devices, ARRAY_SIZE(devices));

[1/1] : Convert arch-vt8500 to use .restart and remove arch_reset()

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