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Sat, 25 Nov 2023 03:22:33 -0600 From: Amit Kumar Mahapatra To: , , , , , , , , , , , , CC: , , , , , , , , , , , , , , Amit Kumar Mahapatra Subject: [PATCH v11 08/10] spi: spi-zynqmp-gqspi: Add stacked memories support in GQSPI driver Date: Sat, 25 Nov 2023 14:51:35 +0530 Message-ID: <20231125092137.2948-9-amit.kumar-mahapatra@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231125092137.2948-1-amit.kumar-mahapatra@amd.com> References: <20231125092137.2948-1-amit.kumar-mahapatra@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF0001709B:EE_|IA1PR12MB7544:EE_ X-MS-Office365-Filtering-Correlation-Id: 55080efe-9a16-4670-e2da-08dbed9819d7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(136003)(376002)(346002)(396003)(230922051799003)(451199024)(1800799012)(82310400011)(186009)(64100799003)(46966006)(40470700004)(36840700001)(70206006)(54906003)(70586007)(83380400001)(8936002)(8676002)(81166007)(316002)(82740400003)(110136005)(4326008)(356005)(40480700001)(426003)(5660300002)(40460700003)(336012)(7416002)(2906002)(41300700001)(47076005)(2616005)(36860700001)(1076003)(921008)(26005)(478600001)(86362001)(36756003)(36900700001);DIR:OUT;SFP:1101; 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The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: GQSPI supports two chip select CS0 & CS1. Update the driver to assert/de-assert the appropriate chip select as per the bits set in qspi->cs_index_mask. Signed-off-by: Amit Kumar Mahapatra --- drivers/spi/spi-zynqmp-gqspi.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) Content analysis details: (0.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_NONE SPF: sender does not publish an SPF Record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 1.0 FORGED_SPF_HELO No description available. -0.0 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org GQSPI supports two chip select CS0 & CS1. Update the driver to assert/de-assert the appropriate chip select as per the bits set in qspi->cs_index_mask. Signed-off-by: Amit Kumar Mahapatra --- drivers/spi/spi-zynqmp-gqspi.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c index 9a46b2478f4e..c5d12ddd4ab3 100644 --- a/drivers/spi/spi-zynqmp-gqspi.c +++ b/drivers/spi/spi-zynqmp-gqspi.c @@ -154,6 +154,9 @@ #define GQSPI_FREQ_100MHZ 100000000 #define GQSPI_FREQ_150MHZ 150000000 +#define GQSPI_SELECT_LOWER_CS BIT(0) +#define GQSPI_SELECT_UPPER_CS BIT(1) + #define SPI_AUTOSUSPEND_TIMEOUT 3000 enum mode_type {GQSPI_MODE_IO, GQSPI_MODE_DMA}; @@ -465,15 +468,17 @@ static void zynqmp_qspi_chipselect(struct spi_device *qspi, bool is_high) genfifoentry |= GQSPI_GENFIFO_MODE_SPI; + if (qspi->cs_index_mask & GQSPI_SELECT_UPPER_CS) { + zynqmp_gqspi_selectslave(xqspi, + GQSPI_SELECT_FLASH_CS_UPPER, + GQSPI_SELECT_FLASH_BUS_LOWER); + } else if (qspi->cs_index_mask & GQSPI_SELECT_LOWER_CS) { + zynqmp_gqspi_selectslave(xqspi, + GQSPI_SELECT_FLASH_CS_LOWER, + GQSPI_SELECT_FLASH_BUS_LOWER); + } + genfifoentry |= xqspi->genfifobus; if (!is_high) { - if (!spi_get_chipselect(qspi, 0)) { - xqspi->genfifobus = GQSPI_GENFIFO_BUS_LOWER; - xqspi->genfifocs = GQSPI_GENFIFO_CS_LOWER; - } else { - xqspi->genfifobus = GQSPI_GENFIFO_BUS_UPPER; - xqspi->genfifocs = GQSPI_GENFIFO_CS_UPPER; - } - genfifoentry |= xqspi->genfifobus; genfifoentry |= xqspi->genfifocs; genfifoentry |= GQSPI_GENFIFO_CS_SETUP; } else {