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Fri, 28 Apr 2023 03:19:38 +0000 From: "Peng Fan (OSS)" To: sbabic@denx.de, festevam@gmail.com, "NXP i.MX U-Boot Team" Cc: u-boot@lists.denx.de, Ye Li , Peng Fan , Jacky Bai Subject: [PATCH 40/42] imx9: Calculate DDR size from DDRC setting Date: Fri, 28 Apr 2023 12:08:45 +0800 Message-Id: <20230428040847.10841-41-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230428040847.10841-1-peng.fan@oss.nxp.com> References: <20230428040847.10841-1-peng.fan@oss.nxp.com> X-ClientProxiedBy: SI1PR02CA0033.apcprd02.prod.outlook.com (2603:1096:4:1f6::14) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9417:EE_|DB9PR04MB8233:EE_ X-MS-Office365-Filtering-Correlation-Id: 813314ca-24cd-4efc-0de8-08db479765fb X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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@@ -327,14 +328,26 @@ void enable_caches(void) __weak int board_phys_sdram_size(phys_size_t *size) { + phys_size_t start, end; + phys_size_t val; + if (!size) return -EINVAL; - *size = PHYS_SDRAM_SIZE; + val = readl(REG_DDR_CS0_BNDS); + start = (val >> 16) << 24; + end = (val & 0xFFFF); + end = end ? end + 1 : 0; + end = end << 24; + *size = end - start; + + val = readl(REG_DDR_CS1_BNDS); + start = (val >> 16) << 24; + end = (val & 0xFFFF); + end = end ? end + 1 : 0; + end = end << 24; + *size += end - start; -#ifdef PHYS_SDRAM_2_SIZE - *size += PHYS_SDRAM_2_SIZE; -#endif return 0; }