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Fri, 19 Mar 2021 07:26:43 +0000 From: "Peng Fan (OSS)" To: sbabic@denx.de, festevam@gmail.com Cc: u-boot@lists.denx.de, uboot-imx@nxp.com, Sherry Sun , Peng Fan Subject: [PATCH 07/26] imx8mp: ddr: Add inline ECC feature support Date: Fri, 19 Mar 2021 15:56:59 +0800 Message-Id: <20210319075718.14181-8-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210319075718.14181-1-peng.fan@oss.nxp.com> References: <20210319075718.14181-1-peng.fan@oss.nxp.com> X-Originating-IP: [119.31.174.71] X-ClientProxiedBy: MA1PR01CA0170.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a01:d::20) 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 MA1PR01CA0170.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a01:d::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3955.18 via Frontend Transport; Fri, 19 Mar 2021 07:26:40 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 87907a75-4334-4f88-a524-08d8eaa85818 X-MS-TrafficTypeDiagnostic: DBAPR04MB7223: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1388; 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And add a config which can enable/disable inline ECC feature for lpddr4 on imx8mp-evk board. Signed-off-by: Sherry Sun Signed-off-by: Peng Fan --- board/freescale/imx8mp_evk/lpddr4_timing.c | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/board/freescale/imx8mp_evk/lpddr4_timing.c b/board/freescale/imx8mp_evk/lpddr4_timing.c index 7658262b37..cc9c6926be 100644 --- a/board/freescale/imx8mp_evk/lpddr4_timing.c +++ b/board/freescale/imx8mp_evk/lpddr4_timing.c @@ -14,6 +14,9 @@ struct dram_cfg_param ddr_ddrc_cfg[] = { { 0x3d400020, 0x1323 }, { 0x3d400024, 0x1e84800 }, { 0x3d400064, 0x7a0118 }, +#ifdef CONFIG_IMX8M_DRAM_INLINE_ECC + { 0x3d400070, 0x01027f44 }, +#endif { 0x3d4000d0, 0xc00307a3 }, { 0x3d4000d4, 0xc50000 }, { 0x3d4000dc, 0xf4003f }, @@ -45,12 +48,21 @@ struct dram_cfg_param ddr_ddrc_cfg[] = { { 0x3d4001c4, 0x1 }, { 0x3d4000f4, 0xc99 }, { 0x3d400108, 0x9121c1c }, +#ifdef CONFIG_IMX8M_DRAM_INLINE_ECC + { 0x3d400200, 0x13 }, + { 0x3d40020c, 0x13131300 }, + { 0x3d400210, 0x1f1f }, + { 0x3d400204, 0x50505 }, + { 0x3d400214, 0x4040404 }, + { 0x3d400218, 0x68040404 }, +#else { 0x3d400200, 0x16 }, { 0x3d40020c, 0x0 }, { 0x3d400210, 0x1f1f }, { 0x3d400204, 0x80808 }, { 0x3d400214, 0x7070707 }, { 0x3d400218, 0x68070707 }, +#endif { 0x3d40021c, 0xf08 }, { 0x3d400250, 0x00001705 }, { 0x3d400254, 0x2c }, @@ -1846,3 +1858,18 @@ struct dram_timing_info dram_timing = { .ddrphy_pie_num = ARRAY_SIZE(ddr_phy_pie), .fsp_table = { 4000, 400, 100, }, }; + +#ifdef CONFIG_IMX8M_DRAM_INLINE_ECC +void board_dram_ecc_scrub(void) +{ + /* add inline scrb function MPlus spcific */ + /* scrub 0-1.75G */ + ddrc_inline_ecc_scrub(0x0, 0x1bffffff); + /* scrub 2-3.75G */ + ddrc_inline_ecc_scrub(0x20000000, 0x3bffffff); + /* scrub 4-5.75G */ + ddrc_inline_ecc_scrub(0x40000000, 0x5bffffff); + /* set scruber read range 0-6G */ + ddrc_inline_ecc_scrub_end(0x0, 0x5fffffff); +} +#endif