From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 29 Apr 2022 09:32:14 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nkL6t-001m6x-Jh for lore@lore.pengutronix.de; Fri, 29 Apr 2022 09:32:14 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nkL6q-00019C-FJ for lore@pengutronix.de; Fri, 29 Apr 2022 09:32:13 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=MUcV4Cz17NI882B3MKk7+2MldideCxokt9I0NNQDwCs=; b=45qEuUU5a9uBUi q9Gn1NDaguConuXdELftP1RZ4iWsr/vKroGNlgI+ZdBxoUbr0PXopmi3fQkXgaNRpz9ZEA07AhZhi whS7TXRAogrI4JS08Rf57hJ/fVXs93Tz73/yYuMLHcygpCJku6eL62h7dJ514gYcQwPHegkZoSc4e CGJD9KGKeA4YjPxChGl09EdE95i2aEiL8jnsUtcQg2Ch+Jj/LPhlITKSvafGNjBVqcqFegJmr1F3o E4No1TAWFX6lyQCULS5ym7KI3Xop/K8UBT+1uklrTbANt3J5bl1p6Ocl6Gs+1eMru3FXRmfLaM9P1 3diFF2AIsBlcMDDWsjOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkL5Y-009yUl-4F; Fri, 29 Apr 2022 07:30:52 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkL5K-009yRl-Qc for barebox@lists.infradead.org; Fri, 29 Apr 2022 07:30:45 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nkL5J-0000gJ-IG; Fri, 29 Apr 2022 09:30:37 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1nkL5K-005u6Z-9b; Fri, 29 Apr 2022 09:30:36 +0200 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nkL5H-000pMG-TE; Fri, 29 Apr 2022 09:30:35 +0200 From: Oleksij Rempel To: barebox@lists.infradead.org Cc: Oleksij Rempel Date: Fri, 29 Apr 2022 09:30:32 +0200 Message-Id: <20220429073034.197362-4-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220429073034.197362-1-o.rempel@pengutronix.de> References: <20220429073034.197362-1-o.rempel@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220429_003038_952673_DA5FF060 X-CRM114-Status: GOOD ( 15.41 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list 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" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v4 3/5] of: add generic of_fixup_machine_compatible() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Add generic function to extend/fixup machine compatible. Signed-off-by: Oleksij Rempel --- common/Kconfig | 5 +++++ common/misc.c | 23 +++++++++++++++++++++++ common/oftree.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/common.h | 3 +++ include/of.h | 6 ++++++ 5 files changed, 78 insertions(+) diff --git a/common/Kconfig b/common/Kconfig index e77e0c78c5..d602ef3444 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -1066,6 +1066,11 @@ config MACHINE_ID Note: if no hashable information is available no machine id will be passed to the kernel. +config MACHINE_FIXUP + bool "fix up machine compatible" + help + fixup machine compatible supplied by board code into device tree + config SERIAL_NUMBER_FIXUP bool "fix up board serial number" help diff --git a/common/misc.c b/common/misc.c index 3b3bc05bfd..0f6de3e9e5 100644 --- a/common/misc.c +++ b/common/misc.c @@ -150,6 +150,7 @@ BAREBOX_MAGICVAR(global.model, "Product name of this hardware"); static char *hostname; static char *serial_number; +static char *of_machine_compatible; /* * The hostname is supposed to be the shortname of a board. It should @@ -195,6 +196,28 @@ const char *barebox_get_serial_number(void) BAREBOX_MAGICVAR(global.serial_number, "Board serial number"); +void barebox_set_of_machine_compatible(const char *__compatible) +{ + free(of_machine_compatible); + of_machine_compatible = xstrdup(__compatible); +} + +const char *barebox_get_of_machine_compatible(void) +{ + return of_machine_compatible; +} + +static int of_kernel_init(void) +{ + globalvar_add_simple_string("of.kernel.add_machine_compatible", + &of_machine_compatible); + + return 0; +} +device_initcall(of_kernel_init); + +BAREBOX_MAGICVAR(global.of.kernel.add_machine_compatible, "Additional machine/board compatible"); + void __noreturn panic(const char *fmt, ...) { va_list args; diff --git a/common/oftree.c b/common/oftree.c index c6d75055cc..76239476e0 100644 --- a/common/oftree.c +++ b/common/oftree.c @@ -216,6 +216,15 @@ static int of_fixup_bootargs(struct device_node *root, void *unused) } + if (IS_ENABLED(CONFIG_MACHINE_FIXUP)) { + const char *compat; + + compat = getenv("global.of.kernel.add_machine_compatible"); + if (compat) + of_fixup_machine_compatible(root, compat); + + } + node = of_create_node(root, "/chosen"); if (!node) return -ENOMEM; @@ -487,3 +496,35 @@ int of_autoenable_i2c_by_component(char *path) return ret; } + +int of_fixup_machine_compatible(struct device_node *root, const char *compat) +{ + int cclen = 0, clen = strlen(compat) + 1; + const char *curcompat; + void *buf; + + if (!root) { + root = of_get_root_node(); + if (!root) + return -ENODEV; + } + + curcompat = of_get_property(root, "compatible", &cclen); + + buf = xzalloc(cclen + clen); + + memcpy(buf, compat, clen); + + if (curcompat) + memcpy(buf + clen, curcompat, cclen); + + /* + * Prepend the compatible from board entry to the machine compatible. + * Used to match bootspec entries against it. + */ + of_set_property(root, "compatible", buf, cclen + clen, true); + + free(buf); + + return 0; +} diff --git a/include/common.h b/include/common.h index 967502a7ab..bd12035688 100644 --- a/include/common.h +++ b/include/common.h @@ -129,4 +129,7 @@ void barebox_set_hostname_no_overwrite(const char *); const char *barebox_get_serial_number(void); void barebox_set_serial_number(const char *); +void barebox_set_of_machine_compatible(const char *); +const char *barebox_get_of_machine_compatible(void); + #endif /* __COMMON_H_ */ diff --git a/include/of.h b/include/of.h index cf9950e9b3..9f514c5ec2 100644 --- a/include/of.h +++ b/include/of.h @@ -316,6 +316,7 @@ struct device_node *of_find_node_by_path_or_alias(struct device_node *root, const char *str); int of_autoenable_device_by_path(char *path); int of_autoenable_i2c_by_component(char *path); +int of_fixup_machine_compatible(struct device_node *root, const char *compat); #else static inline bool of_node_name_eq(const struct device_node *np, const char *name) { @@ -834,6 +835,11 @@ static inline int of_autoenable_i2c_by_component(char *path) return -ENODEV; } +static int of_fixup_machine_compatible(struct device_node *root, + const char *compat) +{ + return -ENODEV; +} #endif -- 2.30.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox