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Tue, 19 Dec 2023 04:12:46 -0600 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE110.ent.ti.com (10.64.6.31) 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; Tue, 19 Dec 2023 04:12:46 -0600 Received: from lelv0854.itg.ti.com (lelv0854.itg.ti.com [10.181.64.140]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3BJACkng115528; Tue, 19 Dec 2023 04:12:46 -0600 Received: from localhost (dhcp-10-24-69-31.dhcp.ti.com [10.24.69.31]) by lelv0854.itg.ti.com (8.14.7/8.14.7) with ESMTP id 3BJACjDl018874; Tue, 19 Dec 2023 04:12:46 -0600 From: MD Danish Anwar To: Maxime Ripard , Siddharth Vadapalli , Roger Quadros , Nishanth Menon , Vignesh Raghavendra , Matthias Schiffer , Kamlesh Gurudasani , Manorit Chawdhry , Neha Malcom Francis , Andrew Davis , MD Danish Anwar , Ramon Fried , Joe Hershberger , Simon Glass , Tom Rini CC: , , Subject: [RFC PATCH 04/16] net: ti: icssg: Add icssg queues APIs and macros Date: Tue, 19 Dec 2023 15:42:01 +0530 Message-ID: <20231219101225.3443978-9-danishanwar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231219101225.3443978-1-danishanwar@ti.com> References: <20231219101225.3443978-1-danishanwar@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Mailman-Approved-At: Tue, 19 Dec 2023 12:33:18 +0100 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 Add icssg_queue.c file. This file introduces macros and APIs related to ICSSG queues. These will be used by ICSSG Ethernet driver. Signed-off-by: MD Danish Anwar --- drivers/net/ti/icssg_prueth.h | 5 ++++ drivers/net/ti/icssg_queues.c | 51 +++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 drivers/net/ti/icssg_queues.c diff --git a/drivers/net/ti/icssg_prueth.h b/drivers/net/ti/icssg_prueth.h index 26b77dd8f3..f34ab5d6d4 100644 --- a/drivers/net/ti/icssg_prueth.h +++ b/drivers/net/ti/icssg_prueth.h @@ -75,4 +75,9 @@ void icssg_config_ipg(struct prueth *prueth, int speed, int mii); int icssg_config(struct prueth *prueth); int emac_set_port_state(struct prueth *prueth, enum icssg_port_state_cmd cmd); +/* Buffer queue helpers */ +int icssg_queue_pop(struct prueth *prueth, u8 queue); +void icssg_queue_push(struct prueth *prueth, int queue, u16 addr); +u32 icssg_queue_level(struct prueth *prueth, int queue); + #endif /* __NET_TI_ICSSG_PRUETH_H */ diff --git a/drivers/net/ti/icssg_queues.c b/drivers/net/ti/icssg_queues.c new file mode 100644 index 0000000000..6a95ef5d58 --- /dev/null +++ b/drivers/net/ti/icssg_queues.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0 +/* ICSSG Buffer queue helpers + * + * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com + */ + +#include +#include +#include "icssg_prueth.h" + +#define ICSSG_QUEUES_MAX 64 +#define ICSSG_QUEUE_OFFSET 0xd00 +#define ICSSG_QUEUE_PEEK_OFFSET 0xe00 +#define ICSSG_QUEUE_CNT_OFFSET 0xe40 +#define ICSSG_QUEUE_RESET_OFFSET 0xf40 + +int icssg_queue_pop(struct prueth *prueth, u8 queue) +{ + u32 val, cnt; + + if (queue >= ICSSG_QUEUES_MAX) + return -EINVAL; + + regmap_read(prueth->miig_rt, ICSSG_QUEUE_CNT_OFFSET + 4 * queue, &cnt); + if (!cnt) + return -EINVAL; + + regmap_read(prueth->miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue, &val); + + return val; +} + +void icssg_queue_push(struct prueth *prueth, int queue, u16 addr) +{ + if (queue >= ICSSG_QUEUES_MAX) + return; + + regmap_write(prueth->miig_rt, ICSSG_QUEUE_OFFSET + 4 * queue, addr); +} + +u32 icssg_queue_level(struct prueth *prueth, int queue) +{ + u32 reg; + + if (queue >= ICSSG_QUEUES_MAX) + return 0; + + regmap_read(prueth->miig_rt, ICSSG_QUEUE_CNT_OFFSET + 4 * queue, ®); + + return reg; +}