From patchwork Fri Oct 6 10:13:40 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 822318 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3y7lqP4xSNz9t4R for ; Fri, 6 Oct 2017 21:14:25 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751966AbdJFKOX (ORCPT ); Fri, 6 Oct 2017 06:14:23 -0400 Received: from mail.free-electrons.com ([62.4.15.54]:50819 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751935AbdJFKOR (ORCPT ); Fri, 6 Oct 2017 06:14:17 -0400 Received: by mail.free-electrons.com (Postfix, from userid 110) id 7F5AB209C1; Fri, 6 Oct 2017 12:14:15 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost.localdomain (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id 1826520909; Fri, 6 Oct 2017 12:14:15 +0200 (CEST) From: Miquel Raynal To: Greg Kroah-Hartman , Linus Walleij , Jason Cooper , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Jiri Slaby , Catalin Marinas , Will Deacon Cc: linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, Thomas Petazzoni , Antoine Tenart , Nadav Haklai , Wilson Ding , Miquel Raynal Subject: [PATCH 12/16] serial: mvebu-uart: support extended port registers layout Date: Fri, 6 Oct 2017 12:13:40 +0200 Message-Id: <20171006101344.15590-13-miquel.raynal@free-electrons.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171006101344.15590-1-miquel.raynal@free-electrons.com> References: <20171006101344.15590-1-miquel.raynal@free-electrons.com> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Define the missing register offsets and bit fields for the extended UART port. Add a second driver data structure filled with its port data, selected with the right compatible (marvell,armada-3700-uart-ext). Signed-off-by: Miquel Raynal Reviewed-by: Gregory CLEMENT --- drivers/tty/serial/mvebu-uart.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c index 3e46affa09a8..38b067e0ef0c 100644 --- a/drivers/tty/serial/mvebu-uart.c +++ b/drivers/tty/serial/mvebu-uart.c @@ -39,10 +39,13 @@ /* Register Map */ #define UART_STD_RBR 0x00 +#define UART_EXT_RBR 0x18 #define UART_STD_TSH 0x04 +#define UART_EXT_TSH 0x1C #define UART_STD_CTRL1 0x08 +#define UART_EXT_CTRL1 0x04 #define CTRL_SOFT_RST BIT(31) #define CTRL_TXFIFO_RST BIT(15) #define CTRL_RXFIFO_RST BIT(14) @@ -55,15 +58,20 @@ CTRL_PAR_ERR_INT | CTRL_OVR_ERR_INT) #define UART_STD_CTRL2 UART_STD_CTRL1 +#define UART_EXT_CTRL2 0x20 #define CTRL_STD_TX_RDY_INT BIT(5) +#define CTRL_EXT_TX_RDY_INT BIT(6) #define CTRL_STD_RX_RDY_INT BIT(4) +#define CTRL_EXT_RX_RDY_INT BIT(5) #define UART_STAT 0x0C #define STAT_TX_FIFO_EMP BIT(13) #define STAT_TX_FIFO_FUL BIT(11) #define STAT_TX_EMP BIT(6) #define STAT_STD_TX_RDY BIT(5) +#define STAT_EXT_TX_RDY BIT(15) #define STAT_STD_RX_RDY BIT(4) +#define STAT_EXT_RX_RDY BIT(14) #define STAT_BRK_DET BIT(3) #define STAT_FRM_ERR BIT(2) #define STAT_PAR_ERR BIT(1) @@ -858,12 +866,28 @@ static struct mvebu_uart_driver_data uart_std_driver_data = { .flags.stat_rx_rdy = STAT_STD_RX_RDY, }; +static struct mvebu_uart_driver_data uart_ext_driver_data = { + .is_ext = true, + .regs.rbr = UART_EXT_RBR, + .regs.tsh = UART_EXT_TSH, + .regs.ctrl = UART_EXT_CTRL1, + .regs.intr = UART_EXT_CTRL2, + .flags.ctrl_tx_rdy_int = CTRL_EXT_TX_RDY_INT, + .flags.ctrl_rx_rdy_int = CTRL_EXT_RX_RDY_INT, + .flags.stat_tx_rdy = STAT_EXT_TX_RDY, + .flags.stat_rx_rdy = STAT_EXT_RX_RDY, +}; + /* Match table for of_platform binding */ static const struct of_device_id mvebu_uart_of_match[] = { { .compatible = "marvell,armada-3700-uart", .data = (void *)&uart_std_driver_data, }, + { + .compatible = "marvell,armada-3700-uart-ext", + .data = (void *)&uart_ext_driver_data, + }, {} };