From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mo2.mail-out.ovh.net ([178.32.228.2]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UBPpB-0005oa-LJ for barebox@lists.infradead.org; Fri, 01 Mar 2013 13:16:35 +0000 Received: from mail426.ha.ovh.net (b6.ovh.net [213.186.33.56]) by mo2.mail-out.ovh.net (Postfix) with SMTP id 4C74BDC3762 for ; Fri, 1 Mar 2013 14:27:26 +0100 (CET) Date: Fri, 1 Mar 2013 14:15:34 +0100 From: Jean-Christophe PLAGNIOL-VILLARD Message-ID: <20130301131534.GC23022@game.jcrosoft.org> References: <1362129773-4579-1-git-send-email-dev@lynxeye.de> <1362129773-4579-8-git-send-email-dev@lynxeye.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1362129773-4579-8-git-send-email-dev@lynxeye.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH 7/7] tegra: add power management controller driver To: Lucas Stach Cc: barebox@lists.infradead.org On 10:22 Fri 01 Mar , Lucas Stach wrote: > Currently only implements system wide reset functionality. > > Signed-off-by: Lucas Stach you work for pengu I expect the proper e-mail here and in the author > --- > arch/arm/mach-tegra/Makefile | 2 +- > arch/arm/mach-tegra/reset.c | 39 ----------------- > arch/arm/mach-tegra/tegra20-pmc.c | 89 +++++++++++++++++++++++++++++++++++++++ > arch/arm/mach-tegra/tegra20.c | 4 ++ > 4 files changed, 94 insertions(+), 40 deletions(-) > delete mode 100644 arch/arm/mach-tegra/reset.c > create mode 100644 arch/arm/mach-tegra/tegra20-pmc.c > > diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile > index 6aa219c..bcc0cd4 100644 > --- a/arch/arm/mach-tegra/Makefile > +++ b/arch/arm/mach-tegra/Makefile > @@ -1,4 +1,4 @@ > -obj-y += reset.o > obj-y += tegra20.o > obj-y += tegra20-car.o > +obj-y += tegra20-pmc.o > obj-y += tegra20-timer.o > diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c > deleted file mode 100644 > index 73d7ca2..0000000 > --- a/arch/arm/mach-tegra/reset.c > +++ /dev/null > @@ -1,39 +0,0 @@ > -/* > - * Copyright (C) 2011 Antony Pavlov > - * > - * This file is part of barebox. > - * See file CREDITS for list of people who contributed to this project. > - * > - * 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. > - * > - * 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. > - * > - */ > - > -/** > - * @file > - * @brief Resetting an malta board > - */ > - > -#include > -#include > -#include > - > -#define PRM_RSTCTRL TEGRA_PMC_BASE > - > -void __noreturn reset_cpu(ulong addr) > -{ > - int rstctrl; > - > - rstctrl = __raw_readl((char *)PRM_RSTCTRL); > - rstctrl |= 0x10; > - __raw_writel(rstctrl, (char *)PRM_RSTCTRL); > - > - unreachable(); > -} > -EXPORT_SYMBOL(reset_cpu); > diff --git a/arch/arm/mach-tegra/tegra20-pmc.c b/arch/arm/mach-tegra/tegra20-pmc.c > new file mode 100644 > index 0000000..ed765f5 > --- /dev/null > +++ b/arch/arm/mach-tegra/tegra20-pmc.c > @@ -0,0 +1,89 @@ > +/* > + * Copyright (C) 2013 Lucas Stach > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2, as published by the Free Software Foundation. > + * > + * This program is distributed in the hope 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. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program. If not, see . > + */ > + > +/** > + * @file > + * @brief Device driver for the Tegra 20 power management controller. > + */ > + > +#include > +#include > +#include > + > +/* register definitions */ > +#define PMC_CNTRL 0x00 > +#define PMC_CNTRL_FUSE_OVERRIDE (1 << 18) > +#define PMC_CNTRL_INTR_POLARITY (1 << 17) > +#define PMC_CNTRL_CPUPWRREQ_OE (1 << 16) > +#define PMC_CNTRL_CPUPWRREQ_POLARITY (1 << 15) > +#define PMC_CNTRL_SIDE_EFFECT_LP0 (1 << 14) > +#define PMC_CNTRL_AOINIT (1 << 13) > +#define PMC_CNTRL_PWRGATE_DIS (1 << 12) > +#define PMC_CNTRL_SYSCLK_OE (1 << 11) > +#define PMC_CNTRL_SYSCLK_POLARITY (1 << 10) > +#define PMC_CNTRL_PWRREQ_OE (1 << 9) > +#define PMC_CNTRL_PWRREQ_POLARITY (1 << 8) > +#define PMC_CNTRL_BLINK_EN (1 << 7) > +#define PMC_CNTRL_GLITCHDET_DIS (1 << 6) > +#define PMC_CNTRL_LATCHWAKE_EN (1 << 5) > +#define PMC_CNTRL_MAIN_RST (1 << 4) > +#define PMC_CNTRL_KBC_RST (1 << 3) > +#define PMC_CNTRL_RTC_RST (1 << 2) > +#define PMC_CNTRL_RTC_CLK_DIS (1 << 1) > +#define PMC_CNTRL_KBC_CLK_DIS (1 << 0) > + > +static void __iomem *pmc_base; > + > +/* main SoC reset trigger */ > +void __noreturn reset_cpu(ulong addr) > +{ > + writel(PMC_CNTRL_MAIN_RST, pmc_base + PMC_CNTRL); > + > + unreachable(); > +} > +EXPORT_SYMBOL(reset_cpu); > + > +static int tegra20_pmc_probe(struct device_d *dev) > +{ > + pmc_base = dev_request_mem_region(dev, 0); > + if (!pmc_base) { > + dev_err(dev, "could not get memory region\n"); > + return -ENODEV; > + } > + > + return 0; > +} > + > +static __maybe_unused struct of_device_id tegra20_pmc_dt_ids[] = { > + { > + .compatible = "nvidia,tegra20-pmc", > + }, { > + /* sentinel */ > + } > +}; > + > +static struct driver_d tegra20_pmc_driver = { > + .probe = tegra20_pmc_probe, > + .name = "tegra20-pmc", > + .of_compatible = DRV_OF_COMPAT(tegra20_pmc_dt_ids), > +}; > + > +static int tegra20_pmc_init(void) > +{ > + return platform_driver_register(&tegra20_pmc_driver); > +} > + > +coredevice_initcall(tegra20_pmc_init); > diff --git a/arch/arm/mach-tegra/tegra20.c b/arch/arm/mach-tegra/tegra20.c > index eccc7b8..54e8819 100644 > --- a/arch/arm/mach-tegra/tegra20.c > +++ b/arch/arm/mach-tegra/tegra20.c > @@ -28,6 +28,10 @@ static int tegra20_init(void) > TEGRA_TMR1_BASE, TEGRA_TMR1_SIZE, > IORESOURCE_MEM, NULL); > > + add_generic_device("tegra20-pmc", DEVICE_ID_SINGLE, NULL, > + TEGRA_PMC_BASE, TEGRA_PMC_SIZE, > + IORESOURCE_MEM, NULL); > + > return 0; > } > > -- > 1.8.1.2 > > > _______________________________________________ > barebox mailing list > barebox@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/barebox _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox