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Sun, 1 Mar 2020 10:50:36 +0000 From: Avri Altman To: Dmitry Osipenko , Jens Axboe , Thierry Reding , Jonathan Hunter , =?iso-8859-2?Q?Micha=B3_Miros=B3aw?= , David Heidelberg , Peter Geis , Stephen Warren , Nicolas Chauvet , Ulf Hansson , Adrian Hunter , Billy Laws CC: "linux-tegra@vger.kernel.org" , "linux-block@vger.kernel.org" , Andrey Danin , Gilles Grandou , Ryan Grachek , "linux-mmc@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH v1 1/3] mmc: core: Add raw_boot_mult field to mmc_ext_csd Thread-Topic: [PATCH v1 1/3] mmc: core: Add raw_boot_mult field to mmc_ext_csd Thread-Index: AQHV62lMjgFqnDamZECwOoicj2ncZ6gzlnYA Date: Sun, 1 Mar 2020 10:50:35 +0000 Message-ID: References: <20200224231841.26550-1-digetx@gmail.com> <20200224231841.26550-2-digetx@gmail.com> In-Reply-To: <20200224231841.26550-2-digetx@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Avri.Altman@wdc.com; x-originating-ip: [212.25.79.133] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: bf52e812-7238-4e77-2d93-08d7bdce5f8e x-ms-traffictypediagnostic: MN2PR04MB5743: x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:5797; x-forefront-prvs: 0329B15C8A x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(4636009)(136003)(39860400002)(396003)(366004)(376002)(346002)(199004)(189003)(26005)(54906003)(4326008)(81156014)(81166006)(110136005)(8676002)(71200400001)(52536014)(8936002)(186003)(5660300002)(316002)(33656002)(2906002)(66946007)(76116006)(478600001)(66446008)(7416002)(64756008)(66476007)(66556008)(86362001)(7696005)(9686003)(6506007)(55016002)(921003)(1121003);DIR:OUT;SFP:1102;SCL:1;SRVR:MN2PR04MB5743;H:MN2PR04MB6991.namprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-ms-exchange-antispam-messagedata: gutNQRUR92V3XNn9icm1DqsHVtl3/81d8CmNEURm5ndSuMejErA/zfCTLMK/fhKidTMPB/HTEmlbYXKsaOKDYyiYk4Wrt58+AiOTtXHw328cY+YHL6K7FKCRG/9NeTXU3uz78RdjSVa6hmOJy0aQkw== x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: bf52e812-7238-4e77-2d93-08d7bdce5f8e X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Mar 2020 10:50:35.8199 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: EHQ1VjF4jKSlSYSC5Vf7WNwW2hSk7X5FXEaP3ONhacq5j0LbyZ43B+uvFFyHHZeIxuUYR9XmdgoKpYRD/rGufQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR04MB5743 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, >=20 >=20 > In order to support parsing of NVIDIA Tegra Partition Table format, we > need to know the BOOT_SIZE_MULT value of the Extended CSD register > because > NVIDIA's bootloader linearizes the boot0/boot1/main partitions into a > single virtual space, and thus, all partition addresses are shifted by > the size of boot0 + boot1 partitions. >=20 > Signed-off-by: Dmitry Osipenko > --- > drivers/mmc/core/mmc.c | 2 ++ > include/linux/mmc/card.h | 1 + > 2 files changed, 3 insertions(+) >=20 > diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c > index f6912ded652d..88e5b4224d3c 100644 > --- a/drivers/mmc/core/mmc.c > +++ b/drivers/mmc/core/mmc.c > @@ -417,6 +417,8 @@ static int mmc_decode_ext_csd(struct mmc_card > *card, u8 *ext_csd) > ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT]; > card->ext_csd.raw_hc_erase_grp_size =3D > ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; > + card->ext_csd.raw_boot_mult =3D > + ext_csd[EXT_CSD_BOOT_MULT]; You might want at this point multiply it by 128K, And get rid of: part_size =3D ext_csd[EXT_CSD_BOOT_MULT] << 17; Below... Thanks, Avri