From patchwork Sat Feb 18 18:46:32 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 729761 X-Patchwork-Delegate: sjg@chromium.org Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 3vRcGC2W52z9s8D for ; Mon, 20 Feb 2017 19:28:19 +1100 (AEDT) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 113F5B3DCA; Mon, 20 Feb 2017 09:22:58 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wYxkZp7mEWwY; Mon, 20 Feb 2017 09:22:57 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 8C646B3A69; Mon, 20 Feb 2017 09:18:45 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id AF0D84A068 for ; Sat, 18 Feb 2017 20:00:36 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id S0vb3rDvGlPT for ; Sat, 18 Feb 2017 20:00:36 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from gloria.sntech.de (gloria.sntech.de [95.129.55.99]) by theia.denx.de (Postfix) with ESMTPS id 6982E4A026 for ; Sat, 18 Feb 2017 20:00:36 +0100 (CET) Received: from [88.128.80.43] (helo=phil.lufthansa-flynet.com) by gloria.sntech.de with esmtpsa (TLS1.1:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1cfA4b-0004qF-BZ; Sat, 18 Feb 2017 19:49:35 +0100 From: Heiko Stuebner To: sjg@chromium.org Date: Sat, 18 Feb 2017 19:46:32 +0100 Message-Id: <20170218184640.30635-13-heiko@sntech.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170218184640.30635-1-heiko@sntech.de> References: <20170218184640.30635-1-heiko@sntech.de> Cc: romain.perier@collabora.com, u-boot@lists.denx.de Subject: [U-Boot] [PATCH v4 12/20] rockchip: rk3188: Add sysreset driver X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" Driver for the sysreset of Rockchip rk3188 socs. Signed-off-by: Heiko Stuebner Reviewed-by: Simon Glass Tested-by: Kever Yang --- drivers/sysreset/Makefile | 1 + drivers/sysreset/sysreset_rk3188.c | 47 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+) create mode 100644 drivers/sysreset/sysreset_rk3188.c diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile index fa75cc52de..30f1bce390 100644 --- a/drivers/sysreset/Makefile +++ b/drivers/sysreset/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_SYSRESET) += sysreset-uclass.o ifndef CONFIG_SPL_BUILD obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o endif +obj-$(CONFIG_ROCKCHIP_RK3188) += sysreset_rk3188.o obj-$(CONFIG_ROCKCHIP_RK3288) += sysreset_rk3288.o obj-$(CONFIG_ROCKCHIP_RK3399) += sysreset_rk3399.o obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o diff --git a/drivers/sysreset/sysreset_rk3188.c b/drivers/sysreset/sysreset_rk3188.c new file mode 100644 index 0000000000..36ae47600a --- /dev/null +++ b/drivers/sysreset/sysreset_rk3188.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +int rk3188_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk3188_cru *cru = rockchip_get_cru(); + + if (IS_ERR(cru)) + return PTR_ERR(cru); + switch (type) { + case SYSRESET_WARM: + rk_clrreg(&cru->cru_mode_con, 0xffff); + writel(0xeca8, &cru->cru_glb_srst_snd_value); + break; + case SYSRESET_COLD: + rk_clrreg(&cru->cru_mode_con, 0xffff); + writel(0xfdb9, &cru->cru_glb_srst_fst_value); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct sysreset_ops rk3188_sysreset = { + .request = rk3188_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rk3188) = { + .name = "rk3188_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk3188_sysreset, +};