From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 10 Mar 2026 16:25:09 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vzyxI-00A8Nt-1l for lore@lore.pengutronix.de; Tue, 10 Mar 2026 16:25:09 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vzyxI-0002Sp-MN for lore@pengutronix.de; Tue, 10 Mar 2026 16:25:09 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/Ak4PWCZsgiWPKMKo3+fD+VmZn2IvLzMpW2RyO8MB9U=; b=21f4WxRrSNaJC/ UrTpRvcNL0Omi/SA1le8BVsz+2ffU+WhCYw7IJ6jzaIDpjnkZpqk5n3aIoGYsu/O+YMzKC2vMgQlc Jzk8Bh2SNFu/1pAa4k8hMfv831/mT2OFaz/rbziuDJhdxJMv/0ViEemGumhwMtBQgj3Fs8KxXd3vY OI9MsYUGA3KqSB2OTNdX6lipjf6Nox/Yj1poCUITWCymzWqF3o/R0FZdb6cFkq/oW5ozkqt2w6bjd wPTCpgUQB2fy8f2OsFhCra2c6wq+m/r3fG+1NkTni7gwlfnp7s5CjQnC8kERPheqxCgTpPn3oZ9gQ yRdfnXBXLOnQf/msVEWw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vzyww-00000009ndV-0CT1; Tue, 10 Mar 2026 15:24:46 +0000 Received: from smtp15.bhosted.nl ([2a02:9e0:8000::26]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vzywr-00000009nXH-0HSP for barebox@lists.infradead.org; Tue, 10 Mar 2026 15:24:42 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonic.nl; s=202111; h=content-transfer-encoding:mime-version:references:in-reply-to:message-id:date: subject:cc:to:from:from; bh=/Ak4PWCZsgiWPKMKo3+fD+VmZn2IvLzMpW2RyO8MB9U=; b=OjVX4cG6FxMtaYTxSMBZhfrkEaFcVAQs8HMwkEO7NkT90egJDRtI+5gjUuglOBfgtcungL+jev2Zu FbGwBC4bEoQt1tngy/lxWCMCWRdwzP20yIbWy4XXIqeSDQfd5OS66mM3pY574Hn9jmeZc1DjooQdET LPh10d41FyWGx/eLWLgPySafvXm1f/SdazEe9N4vLJbRnvliE0qfmuSuSbTWKoiZoxPh8yOBy3ZJmX WYkX1pEcLNrghkg7R4BPrhzkODmvCW6zY4hoik4yRRs1EVjwYsfu/8fKTx8qzb+SoRxRN4IDVsHpCK l/UE0Ki4JfHyHW4Sus/OUI9fs8k5qkw== X-MSG-ID: 3fccc3ea-1c95-11f1-bcce-00505681446f From: Robin van der Gracht To: barebox@lists.infradead.org Date: Tue, 10 Mar 2026 16:24:33 +0100 Message-ID: <20260310152433.786340-9-robin.van.der.gracht@protonic.nl> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260310152433.786340-1-robin.van.der.gracht@protonic.nl> References: <20260310152433.786340-1-robin.van.der.gracht@protonic.nl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260310_082441_243412_DF248C57 X-CRM114-Status: GOOD ( 16.53 ) 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: , Cc: Robin van der Gracht , David Jander Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::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.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-2.6 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 8/8] ARM: boards: protonic-rk356x: Read board serial and MAC address from eMMC X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Protonic stores the MAC address and serial at the start of the reserved space gpt partition (see Rockchip doc for partition details). If a board has multiple ethernet macs the mac addresses are successive. Signed-off-by: Robin van der Gracht --- arch/arm/boards/protonic-rk356x/board.c | 75 +++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/arch/arm/boards/protonic-rk356x/board.c b/arch/arm/boards/protonic-rk356x/board.c index af1fd9fc65..cd4c0d9717 100644 --- a/arch/arm/boards/protonic-rk356x/board.c +++ b/arch/arm/boards/protonic-rk356x/board.c @@ -13,6 +13,8 @@ #include #include #include +#include +#include struct prt_rk356x_adc_chs { int usb_boot; @@ -24,6 +26,7 @@ struct prt_rk356x_model { const char *name; const char *shortname; const struct prt_rk356x_adc_chs adc_channels; + const int mac_cnt; int (*init)(void); }; @@ -97,6 +100,76 @@ static void prt_rk356x_process_adc(struct device *dev, pr_info("Board id: %d, revision %d\n", prt_priv.hw_id, prt_priv.hw_rev); } +static int prt_rk356x_inc_mac(u8 *mac) +{ + mac[5]++; + if (mac[5]) + return 0; + mac[4]++; + if (mac[4]) + return 0; + mac[3]++; + if (mac[3]) + return 0; + pr_err("MAC address overflow!!\n"); + return -EINVAL; +} + +#define RK_GPT_RESERVED_SPACE (7680 * 512) + +static void prt_rk356x_board_info(void) +{ + struct cdev *cdev; + ssize_t size; + u8 buf[11]; + int i; + + cdev = cdev_by_name("mmc0"); + if (!cdev) { + pr_warn("No eMMC device\n"); + return; + } + + /* Read and check TAG */ + size = cdev_read(cdev, buf, 4, RK_GPT_RESERVED_SPACE, 0); + if (size != 4) { + pr_warn("Unable to read board data from eMMC\n"); + return; + } + if (strncmp(buf, "PRTm", 4)) { + pr_warn("Board has no serial number and no MAC address\n"); + return; + } + + /* Read MAC at offset 4 */ + if (prt_priv.model->mac_cnt > 0) { + size = cdev_read(cdev, buf, 6, RK_GPT_RESERVED_SPACE + 4, 0); + if (size != 6) { + pr_warn("Unable to read MAC address from eMMC\n"); + return; + } + if (is_valid_ether_addr(buf)) { + eth_register_ethaddr(0, buf); + for (i = 1; i < prt_priv.model->mac_cnt; i++) { + prt_rk356x_inc_mac(buf); + eth_register_ethaddr(i, buf); + } + } else { + pr_warn("Board has invalid MAC address\n"); + } + } + + /* Read serial at offset 10 */ + size = cdev_read(cdev, buf, 10, RK_GPT_RESERVED_SPACE + 10, 0); + if (size != 10) { + pr_warn("Unable to read serial number from eMMC\n"); + return; + } + buf[10] = 0; + pr_info("Board serial number: %s\n", buf); + barebox_set_serial_number(buf); +} + static int mecsbc_sd_of_fixup(struct device_node *root, void *context) { struct device *dev = context; @@ -145,6 +218,7 @@ static int prt_rk356x_devices_init(void) return 0; prt_rk356x_bbu(); + prt_rk356x_board_info(); if (prt_priv.model->init) { ret = prt_priv.model->init(); @@ -201,6 +275,7 @@ static const struct prt_rk356x_model mecsbc = { .name = "Protonic MECSBC board", .shortname = "mecsbc", .adc_channels = {0, 1, 3}, + .mac_cnt = 3, .init = prt_rk356x_mecsbc_init, }; -- 2.43.0