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Sat, 7 Aug 2021 07:28:01 +0000 From: "Peng Fan (OSS)" To: sbabic@denx.de, festevam@gmail.com Cc: u-boot@lists.denx.de, uboot-imx@nxp.com, Ye Li , Peng Fan Subject: [PATCH V5 31/44] arm: imx8ulp: Probe the S400 MU device in arch init Date: Sat, 7 Aug 2021 16:01:00 +0800 Message-Id: <20210807080113.16020-32-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210807080113.16020-1-peng.fan@oss.nxp.com> References: <20210807080113.16020-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SG2PR01CA0133.apcprd01.prod.exchangelabs.com (2603:1096:4:8f::13) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from linux-1xn6.ap.freescale.net (119.31.174.71) by SG2PR01CA0133.apcprd01.prod.exchangelabs.com (2603:1096:4:8f::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4394.15 via Frontend Transport; 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@@ -322,7 +328,18 @@ int dram_init(void) #ifdef CONFIG_SERIAL_TAG void get_board_serial(struct tag_serialnr *serialnr) { - /* TODO */ + u32 uid[4]; + u32 res; + int ret; + + ret = ahab_read_common_fuse(1, uid, 4, &res); + if (ret) + printf("ahab read fuse failed %d, 0x%x\n", ret, res); + else + printf("UID 0x%x,0x%x,0x%x,0x%x\n", uid[0], uid[1], uid[2], uid[3]); + + serialnr->low = uid[0]; + serialnr->high = uid[3]; } #endif @@ -396,6 +413,22 @@ int arch_cpu_init(void) return 0; } +int arch_cpu_init_dm(void) +{ + struct udevice *devp; + int node, ret; + + node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx8ulp-mu"); + + ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp); + if (ret) { + printf("could not get S400 mu %d\n", ret); + return ret; + } + + return 0; +} + #if defined(CONFIG_SPL_BUILD) __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) { -- 2.30.0