From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02A84C433F5 for ; Wed, 2 Mar 2022 17:33:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244208AbiCBReI convert rfc822-to-8bit (ORCPT ); Wed, 2 Mar 2022 12:34:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244102AbiCBRd2 (ORCPT ); Wed, 2 Mar 2022 12:33:28 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBB8ED3AC9; Wed, 2 Mar 2022 09:32:12 -0800 (PST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 222FZWUA014056; Wed, 2 Mar 2022 17:31:33 GMT Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 3ej9std0k6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Mar 2022 17:31:32 +0000 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 222HDPte008081; Wed, 2 Mar 2022 17:31:31 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma04ams.nl.ibm.com with ESMTP id 3egbj1amg7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Mar 2022 17:31:30 +0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 222HVS6H55312846 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 2 Mar 2022 17:31:28 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8E0BBAE045; Wed, 2 Mar 2022 17:31:28 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA411AE04D; Wed, 2 Mar 2022 17:31:27 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by d06av26.portsmouth.uk.ibm.com (Postfix) with SMTP; Wed, 2 Mar 2022 17:31:27 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.58.125]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id 83E802200FE; Wed, 2 Mar 2022 18:31:26 +0100 (CET) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org Cc: Mark Brown , Tudor Ambarus , Pratyush Yadav , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , linux-aspeed@lists.ozlabs.org, Joel Stanley , Andrew Jeffery , Chin-Ting Kuo , devicetree@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH v2 08/10] spi: aspeed: Add support for the AST2400 SPI controller Date: Wed, 2 Mar 2022 18:31:12 +0100 Message-Id: <20220302173114.927476-9-clg@kaod.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220302173114.927476-1-clg@kaod.org> References: <20220302173114.927476-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT X-TM-AS-GCONF: 00 X-Proofpoint-GUID: QvKns0BNX4Dkfkm0M9ehrUPHiVJGXvHR X-Proofpoint-ORIG-GUID: QvKns0BNX4Dkfkm0M9ehrUPHiVJGXvHR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-02_12,2022-02-26_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 mlxscore=0 adultscore=0 clxscore=1034 impostorscore=0 lowpriorityscore=0 spamscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2203020076 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Extend the driver for the AST2400 SPI Flash Controller (SPI). This controller has a slightly different interface which requires adaptation of the 4B handling. Summary of features : . host Firmware . 1 chip select pin (CE0) . slightly different register set, between AST2500 and the legacy controller . no segment registers . single, dual mode. Signed-off-by: Cédric Le Goater --- drivers/spi/spi-aspeed-smc.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-aspeed-smc.c b/drivers/spi/spi-aspeed-smc.c index e133984d3c95..8c6d7f79d97f 100644 --- a/drivers/spi/spi-aspeed-smc.c +++ b/drivers/spi/spi-aspeed-smc.c @@ -32,6 +32,7 @@ #define CTRL_IO_DUAL_DATA BIT(29) #define CTRL_IO_QUAD_DATA BIT(30) #define CTRL_COMMAND_SHIFT 16 +#define CTRL_IO_ADDRESS_4B BIT(13) /* AST2400 SPI only */ #define CTRL_IO_DUMMY_SET(dummy) \ (((((dummy) >> 2) & 0x1) << 14) | (((dummy) & 0x3) << 6)) #define CTRL_CE_STOP_ACTIVE BIT(2) @@ -272,6 +273,8 @@ static bool aspeed_spi_supports_op(struct spi_mem *mem, const struct spi_mem_op return spi_mem_default_supports_op(mem, op); } +static const struct aspeed_spi_data ast2400_spi_data; + static int do_aspeed_spi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) { struct aspeed_spi *aspi = spi_controller_get_devdata(mem->spi->master); @@ -301,6 +304,9 @@ static int do_aspeed_spi_exec_op(struct spi_mem *mem, const struct spi_mem_op *o addr_mode |= (0x11 << chip->cs); else addr_mode &= ~(0x11 << chip->cs); + + if (op->addr.nbytes == 4 && chip->aspi->data == &ast2400_spi_data) + ctl_val |= CTRL_IO_ADDRESS_4B; } if (op->dummy.buswidth && op->dummy.nbytes) @@ -392,7 +398,13 @@ static int aspeed_spi_chip_set_default_window(struct aspeed_spi_chip *chip) struct aspeed_spi_window windows[ASPEED_SPI_MAX_NUM_CS] = { 0 }; struct aspeed_spi_window *win = &windows[chip->cs]; - aspeed_spi_get_windows(aspi, windows); + /* No segment registers for the AST2400 SPI controller */ + if (aspi->data == &ast2400_spi_data) { + win->offset = 0; + win->size = aspi->ahb_window_size; + } else { + aspeed_spi_get_windows(aspi, windows); + } chip->ahb_base = aspi->ahb_base + win->offset; chip->ahb_window_size = win->size; @@ -455,6 +467,10 @@ static int aspeed_spi_chip_adjust_window(struct aspeed_spi_chip *chip, struct aspeed_spi_window *win = &windows[chip->cs]; int ret; + /* No segment registers for the AST2400 SPI controller */ + if (aspi->data == &ast2400_spi_data) + return 0; + /* * Due to an HW issue on the AST2500 SPI controller, the CE0 * window size should be smaller than the maximum 128MB. @@ -539,6 +555,12 @@ static int aspeed_spi_dirmap_create(struct spi_mem_dirmap_desc *desc) else addr_mode &= ~(0x11 << chip->cs); writel(addr_mode, aspi->regs + CE_CTRL_REG); + + /* AST2400 SPI controller sets 4BYTE address mode in + * CE0 Control Register + */ + if (op->addr.nbytes == 4 && chip->aspi->data == &ast2400_spi_data) + ctl_val |= CTRL_IO_ADDRESS_4B; } /* READ mode is the controller default setting */ @@ -805,6 +827,14 @@ static const struct aspeed_spi_data ast2400_fmc_data = { .segment_reg = aspeed_spi_segment_reg, }; +static const struct aspeed_spi_data ast2400_spi_data = { + .max_cs = 1, + .hastype = false, + .we0 = 0, + .ctl0 = 0x04, + /* No segment registers */ +}; + static const struct aspeed_spi_data ast2500_fmc_data = { .max_cs = 3, .hastype = true, @@ -849,6 +879,7 @@ static const struct aspeed_spi_data ast2600_spi_data = { static const struct of_device_id aspeed_spi_matches[] = { { .compatible = "aspeed,ast2400-fmc", .data = &ast2400_fmc_data }, + { .compatible = "aspeed,ast2400-spi", .data = &ast2400_spi_data }, { .compatible = "aspeed,ast2500-fmc", .data = &ast2500_fmc_data }, { .compatible = "aspeed,ast2500-spi", .data = &ast2500_spi_data }, { .compatible = "aspeed,ast2600-fmc", .data = &ast2600_fmc_data }, -- 2.34.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 99253C433F5 for ; Wed, 2 Mar 2022 17:39:29 +0000 (UTC) DKIM-Signature: v=1; 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=?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org Cc: Mark Brown , Tudor Ambarus , Pratyush Yadav , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , linux-aspeed@lists.ozlabs.org, Joel Stanley , Andrew Jeffery , Chin-Ting Kuo , devicetree@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH v2 08/10] spi: aspeed: Add support for the AST2400 SPI controller Date: Wed, 2 Mar 2022 18:31:12 +0100 Message-Id: <20220302173114.927476-9-clg@kaod.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220302173114.927476-1-clg@kaod.org> References: <20220302173114.927476-1-clg@kaod.org> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: QvKns0BNX4Dkfkm0M9ehrUPHiVJGXvHR X-Proofpoint-ORIG-GUID: QvKns0BNX4Dkfkm0M9ehrUPHiVJGXvHR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.64.514 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