From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Brand Subject: [PATCH v2 2/6] arm: bcm21664: Remove reset code Date: Wed, 11 May 2016 14:36:18 -0700 Message-ID: <1463002582-6875-3-git-send-email-chris.brand@broadcom.com> References: <1463002582-6875-1-git-send-email-chris.brand@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1463002582-6875-1-git-send-email-chris.brand@broadcom.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Sebastian Reichel , Dmitry Eremin-Solenikov , David Woodhouse , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Florian Fainelli , Ray Jui , Scott Branden , linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org The kona reset driver now provides this functionality. Signed-off-by: Chris Brand --- arch/arm/mach-bcm/board_bcm21664.c | 42 -------------------------------------- 1 file changed, 42 deletions(-) diff --git a/arch/arm/mach-bcm/board_bcm21664.c b/arch/arm/mach-bcm/board_bcm21664.c index 82ad5687771f..65b3db06e57a 100644 --- a/arch/arm/mach-bcm/board_bcm21664.c +++ b/arch/arm/mach-bcm/board_bcm21664.c @@ -11,53 +11,12 @@ * GNU General Public License for more details. */ -#include #include -#include #include #include "kona_l2_cache.h" -#define RSTMGR_DT_STRING "brcm,bcm21664-resetmgr" - -#define RSTMGR_REG_WR_ACCESS_OFFSET 0 -#define RSTMGR_REG_CHIP_SOFT_RST_OFFSET 4 - -#define RSTMGR_WR_PASSWORD 0xa5a5 -#define RSTMGR_WR_PASSWORD_SHIFT 8 -#define RSTMGR_WR_ACCESS_ENABLE 1 - -static void bcm21664_restart(enum reboot_mode mode, const char *cmd) -{ - void __iomem *base; - struct device_node *resetmgr; - - resetmgr = of_find_compatible_node(NULL, NULL, RSTMGR_DT_STRING); - if (!resetmgr) { - pr_emerg("Couldn't find " RSTMGR_DT_STRING "\n"); - return; - } - base = of_iomap(resetmgr, 0); - if (!base) { - pr_emerg("Couldn't map " RSTMGR_DT_STRING "\n"); - return; - } - - /* - * A soft reset is triggered by writing a 0 to bit 0 of the soft reset - * register. To write to that register we must first write the password - * and the enable bit in the write access enable register. - */ - writel((RSTMGR_WR_PASSWORD << RSTMGR_WR_PASSWORD_SHIFT) | - RSTMGR_WR_ACCESS_ENABLE, - base + RSTMGR_REG_WR_ACCESS_OFFSET); - writel(0, base + RSTMGR_REG_CHIP_SOFT_RST_OFFSET); - - /* Wait for reset */ - while (1); -} - static void __init bcm21664_init(void) { of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); @@ -71,6 +30,5 @@ static const char * const bcm21664_dt_compat[] = { DT_MACHINE_START(BCM21664_DT, "BCM21664 Broadcom Application Processor") .init_machine = bcm21664_init, - .restart = bcm21664_restart, .dt_compat = bcm21664_dt_compat, MACHINE_END -- 1.9.1