From patchwork Thu May 6 23:24:20 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Hilman X-Patchwork-Id: 97492 Received: from comal.ext.ti.com (comal.ext.ti.com [198.47.26.152]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o46NY6kL008381 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 6 May 2010 23:34:58 GMT Received: from dlep34.itg.ti.com ([157.170.170.115]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id o46NY5Zt016355 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 6 May 2010 18:34:05 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by dlep34.itg.ti.com (8.13.7/8.13.7) with ESMTP id o46NY532020097 for ; Thu, 6 May 2010 18:34:05 -0500 (CDT) Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 468C680631 for ; Thu, 6 May 2010 18:34:05 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp52.itg.ti.com (dflp52.itg.ti.com [128.247.22.96]) by linux.omap.com (Postfix) with ESMTP id 8FB1680636 for ; Thu, 6 May 2010 18:26:19 -0500 (CDT) Received: from white.ext.ti.com (localhost [127.0.0.1]) by dflp52.itg.ti.com (8.13.7/8.13.7) with ESMTP id o46NQJ7b025702 for ; Thu, 6 May 2010 18:26:19 -0500 (CDT) Received: from psmtp.com (na3sys009amx230.postini.com [74.125.149.114]) by white.ext.ti.com (8.13.7/8.13.7) with SMTP id o46NQIIx004154 for ; Thu, 6 May 2010 18:26:18 -0500 Received: from source ([209.85.212.45]) by na3sys009amx230.postini.com ([74.125.148.10]) with SMTP; Thu, 06 May 2010 23:26:18 GMT Received: by mail-vw0-f45.google.com with SMTP id 15so53896vws.4 for ; Thu, 06 May 2010 16:26:18 -0700 (PDT) Received: by 10.220.122.224 with SMTP id m32mr13979661vcr.191.1273188378095; Thu, 06 May 2010 16:26:18 -0700 (PDT) Received: from localhost (deeprootsystems.com [216.254.16.51]) by mx.google.com with ESMTPS id p36sm6507239vcr.7.2010.05.06.16.26.16 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 06 May 2010 16:26:17 -0700 (PDT) From: Kevin Hilman To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 29/34] Davinci: watchdog reset separation across socs Date: Thu, 6 May 2010 16:24:20 -0700 Message-Id: <1273188265-12782-30-git-send-email-khilman@deeprootsystems.com> X-Mailer: git-send-email 1.7.0.2 In-Reply-To: <1273188265-12782-1-git-send-email-khilman@deeprootsystems.com> References: <1273188265-12782-1-git-send-email-khilman@deeprootsystems.com> X-pstn-neptune: 0/0/0.00/0 X-pstn-levels: (S:93.82496/99.90000 CV:99.9000 FC:95.5390 LC:95.5390 R:95.9108 P:95.9108 M:97.0282 C:98.6951 ) X-pstn-settings: 2 (0.5000:0.5000) s cv gt3 gt2 gt1 r p m c X-pstn-addresses: from [db-null] Cc: davinci-linux-open-source@linux.davincidsp.com X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: davinci-linux-open-source-bounces+patchwork-davinci=patchwork.kernel.org@linux.davincidsp.com Errors-To: davinci-linux-open-source-bounces+patchwork-davinci=patchwork.kernel.org@linux.davincidsp.com X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Thu, 06 May 2010 23:34:59 +0000 (UTC) diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h index ce26015..01e3648 100644 --- a/arch/arm/mach-davinci/clock.h +++ b/arch/arm/mach-davinci/clock.h @@ -120,6 +120,7 @@ int davinci_set_pllrate(struct pll_data *pll, unsigned int prediv, unsigned int mult, unsigned int postdiv); extern struct platform_device davinci_wdt_device; +extern void davinci_watchdog_reset(struct platform_device *); #endif diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c index 94f27cb..f8221c5 100644 --- a/arch/arm/mach-davinci/common.c +++ b/arch/arm/mach-davinci/common.c @@ -77,6 +77,9 @@ void __init davinci_common_init(struct davinci_soc_info *soc_info) local_flush_tlb_all(); flush_cache_all(); + if (!davinci_soc_info.reset) + davinci_soc_info.reset = davinci_watchdog_reset; + /* * We want to check CPU revision early for cpu_is_xxxx() macros. * IO space mapping must be initialized before we can do that. diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c index 68e5233..83879f8 100644 --- a/arch/arm/mach-davinci/da830.c +++ b/arch/arm/mach-davinci/da830.c @@ -1206,6 +1206,7 @@ static struct davinci_soc_info davinci_soc_info_da830 = { .gpio_irq = IRQ_DA8XX_GPIO0, .serial_dev = &da8xx_serial_device, .emac_pdata = &da8xx_emac_pdata, + .reset_device = &da8xx_wdt_device, }; void __init da830_init(void) diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 8aefcff..2b6dd59 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -1093,6 +1093,7 @@ static struct davinci_soc_info davinci_soc_info_da850 = { .emac_pdata = &da8xx_emac_pdata, .sram_dma = DA8XX_ARM_RAM_BASE, .sram_len = SZ_8K, + .reset_device = &da8xx_wdt_device, }; void __init da850_init(void) diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 0a96791..67a6fbc 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -326,7 +326,7 @@ static struct resource da8xx_watchdog_resources[] = { }, }; -struct platform_device davinci_wdt_device = { +struct platform_device da8xx_wdt_device = { .name = "watchdog", .id = -1, .num_resources = ARRAY_SIZE(da8xx_watchdog_resources), @@ -335,7 +335,7 @@ struct platform_device davinci_wdt_device = { int __init da8xx_register_watchdog(void) { - return platform_device_register(&davinci_wdt_device); + return platform_device_register(&da8xx_wdt_device); } static struct resource da8xx_emac_resources[] = { diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index f91e9a1..0c62a68 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -861,6 +861,7 @@ static struct davinci_soc_info davinci_soc_info_dm355 = { .serial_dev = &dm355_serial_device, .sram_dma = 0x00010000, .sram_len = SZ_32K, + .reset_device = &davinci_wdt_device, }; void __init dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata) diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index f2b1d93..ed76450 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -1068,6 +1068,7 @@ static struct davinci_soc_info davinci_soc_info_dm365 = { .emac_pdata = &dm365_emac_pdata, .sram_dma = 0x00010000, .sram_len = SZ_32K, + .reset_device = &davinci_wdt_device, }; void __init dm365_init_asp(struct snd_platform_data *pdata) diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index 85c88ec..7f36c22 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -753,6 +753,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = { .emac_pdata = &dm644x_emac_pdata, .sram_dma = 0x00008000, .sram_len = SZ_16K, + .reset_device = &davinci_wdt_device, }; void __init dm644x_init_asp(struct snd_platform_data *pdata) diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index a8189c9..8dd0afe 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -837,6 +837,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = { .emac_pdata = &dm646x_emac_pdata, .sram_dma = 0x10010000, .sram_len = SZ_32K, + .reset_device = &davinci_wdt_device, }; void __init dm646x_init_mcasp0(struct snd_platform_data *pdata) diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index 8ffef5b..a58bd88 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -70,6 +70,8 @@ struct davinci_soc_info { struct emac_platform_data *emac_pdata; dma_addr_t sram_dma; unsigned sram_len; + struct platform_device *reset_device; + void (*reset)(struct platform_device *); }; extern struct davinci_soc_info davinci_soc_info; diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index dbb4ebe..1b31a9a 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -87,6 +87,8 @@ extern struct emac_platform_data da8xx_emac_pdata; extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata; extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata; +extern struct platform_device da8xx_wdt_device; + extern const short da830_emif25_pins[]; extern const short da830_spi0_pins[]; extern const short da830_spi1_pins[]; diff --git a/arch/arm/mach-davinci/include/mach/system.h b/arch/arm/mach-davinci/include/mach/system.h index 5a7d758..e65629c 100644 --- a/arch/arm/mach-davinci/include/mach/system.h +++ b/arch/arm/mach-davinci/include/mach/system.h @@ -11,7 +11,7 @@ #ifndef __ASM_ARCH_SYSTEM_H #define __ASM_ARCH_SYSTEM_H -extern void davinci_watchdog_reset(void); +#include static inline void arch_idle(void) { @@ -20,7 +20,8 @@ static inline void arch_idle(void) static inline void arch_reset(char mode, const char *cmd) { - davinci_watchdog_reset(); + if (davinci_soc_info.reset) + davinci_soc_info.reset(davinci_soc_info.reset_device); } #endif /* __ASM_ARCH_SYSTEM_H */ diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c index b21f763..e5c598a 100644 --- a/arch/arm/mach-davinci/time.c +++ b/arch/arm/mach-davinci/time.c @@ -399,13 +399,16 @@ struct sys_timer davinci_timer = { /* reset board using watchdog timer */ -void davinci_watchdog_reset(void) +void davinci_watchdog_reset(struct platform_device *pdev) { u32 tgcr, wdtcr; - struct platform_device *pdev = &davinci_wdt_device; - void __iomem *base = IO_ADDRESS(pdev->resource[0].start); + void __iomem *base; struct clk *wd_clk; + base = ioremap(pdev->resource[0].start, SZ_4K); + if (WARN_ON(!base)) + return; + wd_clk = clk_get(&pdev->dev, NULL); if (WARN_ON(IS_ERR(wd_clk))) return;