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Mon, 12 Aug 2024 06:47:48 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 12 Aug 2024 06:47:48 -0500 Received: from localhost (chintan-thinkstation-p360-tower.dhcp.ti.com [172.24.227.220]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 47CBlm9T128755; Mon, 12 Aug 2024 06:47:48 -0500 From: Chintan Vankar To: Michal Simek , Bryan Brattlof , "Vignesh Raghavendra" , Marek Vasut , Neha Malcom Francis , Udit Kumar , "MD Danish Anwar" , Ravi Gunasekaran , Matthias Schiffer , Andreas Dannenberg , Jonas Karlman , Devarsh Thakkar , Sean Anderson , Simon Glass , Kishon Vijay Abraham I , Andrew Davis , Joao Paulo Goncalves , Wadim Egorov , Mattijs Korpershoek , Siddharth Vadapalli , Dhruva Gole , Chintan Vankar , Francesco Dolcini , Nishanth Menon , Sumit Garg , Tom Rini CC: Subject: [PATCH v4 03/10] soc: ti: k3-navss-ringacc: Initialize base address of ring cfg registers Date: Mon, 12 Aug 2024 17:17:46 +0530 Message-ID: <20240812114746.3843395-1-c-vankar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240812113621.3840652-1-c-vankar@ti.com> References: <20240812113621.3840652-1-c-vankar@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean From: Kishon Vijay Abraham I Initialize base address of ring config registers required to natively setup ring cfg registers in the absence of Device Manager (DM) services at R5 SPL stage. Since register property is defined as "ring" for PKTDMA and "cfg" for UDMA, configure base address of ring configuration register accordingly. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Siddharth Vadapalli Signed-off-by: Chintan Vankar --- Link to v3: https://lore.kernel.org/r/20240705045030.1141934-4-c-vankar@ti.com/ Changes from v3 to v4: - No changes. drivers/soc/ti/k3-navss-ringacc.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/soc/ti/k3-navss-ringacc.c b/drivers/soc/ti/k3-navss-ringacc.c index b2643a30d3..14114a6583 100644 --- a/drivers/soc/ti/k3-navss-ringacc.c +++ b/drivers/soc/ti/k3-navss-ringacc.c @@ -1028,8 +1028,8 @@ static int k3_nav_ringacc_init(struct udevice *dev, struct k3_nav_ringacc *ringa struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, struct k3_ringacc_init_data *data) { + void __iomem *base_rt, *base_cfg; struct k3_nav_ringacc *ringacc; - void __iomem *base_rt; int i; ringacc = devm_kzalloc(dev, sizeof(*ringacc), GFP_KERNEL); @@ -1047,6 +1047,20 @@ struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, if (!base_rt) return ERR_PTR(-EINVAL); + /* + * Since register property is defined as "ring" for PKTDMA and + * "cfg" for UDMA, configure base address of ring configuration + * register accordingly. + */ + base_cfg = dev_remap_addr_name(dev, "ring"); + pr_debug("ring %p\n", base_cfg); + if (!base_cfg) { + base_cfg = dev_remap_addr_name(dev, "cfg"); + pr_debug("cfg %p\n", base_cfg); + if (!base_cfg) + return ERR_PTR(-EINVAL); + } + ringacc->rings = devm_kzalloc(dev, sizeof(*ringacc->rings) * ringacc->num_rings * 2, @@ -1061,6 +1075,7 @@ struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev, for (i = 0; i < ringacc->num_rings; i++) { struct k3_nav_ring *ring = &ringacc->rings[i]; + ring->cfg = base_cfg + KNAV_RINGACC_CFG_REGS_STEP * i; ring->rt = base_rt + K3_DMARING_RING_RT_REGS_STEP * i; ring->parent = ringacc; ring->ring_id = i;