From patchwork Tue Oct 13 20:21:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Karlman X-Patchwork-Id: 1382108 X-Patchwork-Delegate: ykai007@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=kwiboo.se Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kwiboo.se header.i=@kwiboo.se header.a=rsa-sha256 header.s=001 header.b=bTNrlWAI; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CBBS43b7Kz9sVJ for ; Wed, 14 Oct 2020 23:24:36 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 988E682406; Wed, 14 Oct 2020 14:24:22 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=kwiboo.se Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=kwiboo.se header.i=@kwiboo.se header.b="bTNrlWAI"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id D1C47822C7; Tue, 13 Oct 2020 22:21:24 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE, UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from o1.b.az.sendgrid.net (o1.b.az.sendgrid.net [208.117.55.133]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id E0B9B80404 for ; Tue, 13 Oct 2020 22:21:21 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=kwiboo.se Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=bounces+2296375-16e9-u-boot=lists.denx.de@em9937.kwiboo.se DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=from:subject:in-reply-to:references:to:cc:content-type: content-transfer-encoding; s=001; bh=AH9CzzfEOICRRGWa9h6qNEMBOzbOdE11qcQ1Fypw/ck=; b=bTNrlWAIlP7ez6Zx4WPVE7iLSJOrAJvXoPXlc59BJ0Bmn66nSGO6d8SUMlIYlfig97Yy i61xbFdoHnJYlU8oAelBpynQ+0n05OCW5tE8AmbJsmtQZggWk7EIZS9sJOq3GTqyY3+OnC EqL5EKxFWRqW29SaGsjERSMfuit8mfMzY= Received: by filterdrecv-p3las1-68f969d758-r28kt with SMTP id filterdrecv-p3las1-68f969d758-r28kt-20-5F860C3F-56 2020-10-13 20:21:19.753983312 +0000 UTC m=+74324.157639469 Received: from bionic.localdomain (unknown) by ismtpd0004p1lon1.sendgrid.net (SG) with ESMTP id IcRNuBdJTfeQOs81PSQ25Q Tue, 13 Oct 2020 20:21:19.453 +0000 (UTC) From: Jonas Karlman Subject: [PATCH 1/3] rockchip: efuse: add support for RK3288 non-secure efuse Date: Tue, 13 Oct 2020 20:21:19 +0000 (UTC) Message-Id: <20201013202116.24850-2-jonas@kwiboo.se> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201013202116.24850-1-jonas@kwiboo.se> References: <20201013202116.24850-1-jonas@kwiboo.se> X-SG-EID: TdbjyGynYnRZWhH+7lKUQJL+ZxmxpowvO2O9SQF5CwCVrYgcwUXgU5DKUU3QxAfZekEeQsTe+RrMu3cja6a0h6uxzgFJmOmbVYrNMzHelWZl3jxrvIti14UKQ6yn+rHuJa3dwUgB3YIk8lcgh9VXY5V/tpVjhN3EllyjEJE0999IUBNnVyJlJkEXwPIP+nccEx91c/I3GW+4uHkttHTFfR99DFgkHQaOdIFgirW7qr+IFSRaqUQSDhcC1v7z76z5 To: u-boot@lists.denx.de Cc: Jonas Karlman , Simon Glass , Philipp Tomsich , Kever Yang , Francis Fan , Cody Xie X-Entity-ID: wSPGWgGSXUap++qShBI+ag== X-Mailman-Approved-At: Wed, 14 Oct 2020 14:24:20 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Francis Fan Extend rockchip efuse driver with support for RK3288 non-secure efuse. Signed-off-by: Francis Fan Signed-off-by: Cody Xie Signed-off-by: Jonas Karlman --- drivers/misc/rockchip-efuse.c | 91 +++++++++++++++++++++++++++++++++-- 1 file changed, 87 insertions(+), 4 deletions(-) diff --git a/drivers/misc/rockchip-efuse.c b/drivers/misc/rockchip-efuse.c index 46ce6305fe..20423544d9 100644 --- a/drivers/misc/rockchip-efuse.c +++ b/drivers/misc/rockchip-efuse.c @@ -27,6 +27,17 @@ #define RK3399_STROBE BIT(1) #define RK3399_CSB BIT(0) +#define RK3288_A_SHIFT 6 +#define RK3288_A_MASK 0x3ff +#define RK3288_NFUSES 32 +#define RK3288_BYTES_PER_FUSE 1 +#define RK3288_PGENB BIT(3) +#define RK3288_LOAD BIT(2) +#define RK3288_STROBE BIT(1) +#define RK3288_CSB BIT(0) + +typedef int (*EFUSE_READ)(struct udevice *dev, int offset, void *buf, int size); + struct rockchip_efuse_regs { u32 ctrl; /* 0x00 efuse control register */ u32 dout; /* 0x04 efuse data out register */ @@ -53,7 +64,7 @@ static int dump_efuses(struct cmd_tbl *cmdtp, int flag, */ struct udevice *dev; - u8 fuses[128]; + u8 fuses[128] = {0}; int ret; /* retrieve the device */ @@ -77,7 +88,7 @@ static int dump_efuses(struct cmd_tbl *cmdtp, int flag, } U_BOOT_CMD( - rk3399_dump_efuses, 1, 1, dump_efuses, + rockchip_dump_efuses, 1, 1, dump_efuses, "Dump the content of the efuses", "" ); @@ -127,10 +138,59 @@ static int rockchip_rk3399_efuse_read(struct udevice *dev, int offset, return 0; } +static int rockchip_rk3288_efuse_read(struct udevice *dev, int offset, + void *buf, int size) +{ + struct rockchip_efuse_platdata *plat = dev_get_platdata(dev); + struct rockchip_efuse_regs *efuse = + (struct rockchip_efuse_regs *)plat->base; + u8 *buffer = buf; + int max_size = RK3288_NFUSES * RK3288_BYTES_PER_FUSE; + + if (size > (max_size - offset)) + size = max_size - offset; + + /* Switch to read mode */ + writel(RK3288_LOAD | RK3288_PGENB, &efuse->ctrl); + udelay(1); + + while (size--) { + writel(readl(&efuse->ctrl) & + (~(RK3288_A_MASK << RK3288_A_SHIFT)), + &efuse->ctrl); + /* set addr */ + writel(readl(&efuse->ctrl) | + ((offset++ & RK3288_A_MASK) << RK3288_A_SHIFT), + &efuse->ctrl); + udelay(1); + /* strobe low to high */ + writel(readl(&efuse->ctrl) | + RK3288_STROBE, &efuse->ctrl); + ndelay(60); + /* read data */ + *buffer++ = readl(&efuse->dout); + /* reset strobe to low */ + writel(readl(&efuse->ctrl) & + (~RK3288_STROBE), &efuse->ctrl); + udelay(1); + } + + /* Switch to standby mode */ + writel(RK3288_PGENB | RK3288_CSB, &efuse->ctrl); + + return 0; +} + static int rockchip_efuse_read(struct udevice *dev, int offset, void *buf, int size) { - return rockchip_rk3399_efuse_read(dev, offset, buf, size); + EFUSE_READ efuse_read = NULL; + + efuse_read = (EFUSE_READ)dev_get_driver_data(dev); + if (!efuse_read) + return -ENOSYS; + + return (*efuse_read)(dev, offset, buf, size); } static const struct misc_ops rockchip_efuse_ops = { @@ -146,7 +206,30 @@ static int rockchip_efuse_ofdata_to_platdata(struct udevice *dev) } static const struct udevice_id rockchip_efuse_ids[] = { - { .compatible = "rockchip,rk3399-efuse" }, + { + .compatible = "rockchip,rk3066a-efuse", + .data = (ulong)&rockchip_rk3288_efuse_read, + }, + { + .compatible = "rockchip,rk3188-efuse", + .data = (ulong)&rockchip_rk3288_efuse_read, + }, + { + .compatible = "rockchip,rk3228-efuse", + .data = (ulong)&rockchip_rk3288_efuse_read, + }, + { + .compatible = "rockchip,rk3288-efuse", + .data = (ulong)&rockchip_rk3288_efuse_read, + }, + { + .compatible = "rockchip,rk3368-efuse", + .data = (ulong)&rockchip_rk3288_efuse_read, + }, + { + .compatible = "rockchip,rk3399-efuse", + .data = (ulong)&rockchip_rk3399_efuse_read, + }, {} };