From patchwork Sat Nov 2 09:31:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= X-Patchwork-Id: 13860057 Received: from fw2.prolan.hu (fw2.prolan.hu [193.68.50.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6E0A614A630; Sat, 2 Nov 2024 09:34:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.68.50.107 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540065; cv=none; b=NzzM/isljfC7LQvtdzRGhNIH96qxTb9W2p0vI71wY/RN39vNfi4RoF2o5X2JgRfmR2opW8KzMet8F+lhWq5uy6++6WbBGSA+iW90Fw8+i+gZhALDq7q+rgDK0ni0LYs+ATDuJ/90+yY8ev7bAZqxO2lgmJRSSbn1Y8n/if4vu9E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540065; c=relaxed/simple; bh=GbmCIy34W4Q+MT14nzIQDVdTKUBZgh2lULtUJw5LSTI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=mrBxayBTB177/zCNYCJ06tjzgU3HSrVNcCFuArpu/BFZsPb4uVPIWLGSmPfHXvNtZ4v+ZoQqN2A8BFLfujSaj+FXHVQRJ1L07dVm0TCpEaO/HrvR837+HYNjTfhHye0YF4Ejv7aHL9dSWfTaW++kH/iRk5y3JXJCiIdmaWCgcp4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=prolan.hu; spf=pass smtp.mailfrom=prolan.hu; dkim=pass (4096-bit key) header.d=prolan.hu header.i=@prolan.hu header.b=AKlK8PoV; arc=none smtp.client-ip=193.68.50.107 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=prolan.hu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=prolan.hu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=prolan.hu header.i=@prolan.hu header.b="AKlK8PoV" Received: from proxmox-mailgw.intranet.prolan.hu (localhost.localdomain [127.0.0.1]) by proxmox-mailgw.intranet.prolan.hu (Proxmox) with ESMTP id DC580A0438; Sat, 2 Nov 2024 10:34:21 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=prolan.hu; h=cc :cc:content-transfer-encoding:content-type:content-type:date :from:from:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=mail; bh=kM5LxwmkSrNnREXnPCj+ LvW4dYimAjGWUA8atogd9BE=; b=AKlK8PoV+cqO8Djpg9dSlxWWE2MrugoY56iU orqFjJr7LzGnfJyk8kZooXzq+uY/QlzbYum7LPRcEwfgSKtjSj3Jasi71GSvFJdN uZ7DUWBAbe+s4cCIDRwA15pKuDnLlaTf7miGZhUMd6L+vL5yZL8PeXXuZYHzyImt MmrKl//uEZH6P7BL/nF5/aPRbG+Xt8SaX3ADGTKSFQu6afUG7wp31KHmEbAhAnIg 4CLTlpj9EGQH2esQdktP6oEPOxjorOZpopYVlRDYn5wqAFc73Djw8v5SFZnWQHJx s4MFoBFmNC77/Zki2SQUU3LdTjlB14K7lB1t14HCXrldeVB0+Ae5aoM84+FOB6mp JeiUA+xN45Zd7ukTZft2nS5B7TIBEPdSMuVnJlXIxbtL73EWiQLRb78/pqAP/Oqs nvl5t+0vq1hgBAGstHKweLAha5NZJmIhbm9q+2lJPsaxLd75+HjVGZtqjSAAh9ih arStoc4KPgouWmsbR6XWcGzF4v8E3NOqhE9WYIKywj8fq2Qd5Kc1EhtDDqrz9ziZ +QY1pmkSbgy08q4/LmYo7MD982yRhLJVHgzKVHHIA5dvAXInRrkf3WIQR6kI78XC FOI8Px5B5vAGXs1juWoepzlxYp+O4zcFHtJiqfqfG+WZKnfbaGGFMW1rxX3lFVvD uwB5GP4= From: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= To: , , , CC: Mesih Kilinc , Amit Singh Tomar , =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= , Vinod Koul , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Subject: [PATCH v5 1/5] dma-engine: sun4i: Add a quirk to support different chips Date: Sat, 2 Nov 2024 10:31:38 +0100 Message-ID: <20241102093140.2625230-2-csokas.bence@prolan.hu> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241102093140.2625230-1-csokas.bence@prolan.hu> References: <20241102093140.2625230-1-csokas.bence@prolan.hu> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ESET-AS: R=OK;S=0;OP=CALC;TIME=1730540060;VERSION=7979;MC=832334547;ID=220018;TRN=0;CRV=0;IPC=;SP=0;SIPS=0;PI=3;F=0 X-ESET-Antispam: OK X-EsetResult: clean, is OK X-EsetId: 37303A2980D94855667067 From: Mesih Kilinc Allwinner suniv F1C100s has similar DMA engine to sun4i. Several registers has different addresses. Total dma channels, endpoint counts and max burst counts are also different. In order to support F1C100s add a quirk structure to hold IC specific data. Signed-off-by: Mesih Kilinc [ csokas.bence: Resolve conflict in `sun4i_dma_prep_dma_cyclic()`, fix whitespace ] Signed-off-by: Csókás, Bence --- Notes: Changes in v2: * Whitespace Changes in v5: * Use SUN4I_DMA_NR_MAX_CHANNELS drivers/dma/sun4i-dma.c | 137 ++++++++++++++++++++++++++++++---------- 1 file changed, 105 insertions(+), 32 deletions(-) diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c index 2e7f9b07fdd2..b2c1e4b9f696 100644 --- a/drivers/dma/sun4i-dma.c +++ b/drivers/dma/sun4i-dma.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -31,6 +32,8 @@ #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode) ((mode) << 5) #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type) (type) +#define SUN4I_MAX_BURST 8 + /** Normal DMA register values **/ /* Normal DMA source/destination data request type values */ @@ -132,6 +135,32 @@ #define SUN4I_DDMA_MAX_SEG_SIZE SZ_16M #define SUN4I_DMA_MAX_SEG_SIZE SUN4I_NDMA_MAX_SEG_SIZE +/* + * Hardware channels / ports representation + * + * The hardware is used in several SoCs, with differing numbers + * of channels and endpoints. This structure ties those numbers + * to a certain compatible string. + */ +struct sun4i_dma_config { + u32 ndma_nr_max_channels; + u32 ndma_nr_max_vchans; + + u32 ddma_nr_max_channels; + u32 ddma_nr_max_vchans; + + u32 dma_nr_max_channels; + + void (*set_dst_data_width)(u32 *p_cfg, s8 data_width); + void (*set_src_data_width)(u32 *p_cfg, s8 data_width); + int (*convert_burst)(u32 maxburst); + + u8 ndma_drq_sdram; + u8 ddma_drq_sdram; + + u8 max_burst; +}; + struct sun4i_dma_pchan { /* Register base of channel */ void __iomem *base; @@ -170,7 +199,7 @@ struct sun4i_dma_contract { }; struct sun4i_dma_dev { - DECLARE_BITMAP(pchans_used, SUN4I_DMA_NR_MAX_CHANNELS); + unsigned long *pchans_used; struct dma_device slave; struct sun4i_dma_pchan *pchans; struct sun4i_dma_vchan *vchans; @@ -178,6 +207,7 @@ struct sun4i_dma_dev { struct clk *clk; int irq; spinlock_t lock; + const struct sun4i_dma_config *cfg; }; static struct sun4i_dma_dev *to_sun4i_dma_dev(struct dma_device *dev) @@ -200,7 +230,17 @@ static struct device *chan2dev(struct dma_chan *chan) return &chan->dev->device; } -static int convert_burst(u32 maxburst) +static void set_dst_data_width_a10(u32 *p_cfg, s8 data_width) +{ + *p_cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(data_width); +} + +static void set_src_data_width_a10(u32 *p_cfg, s8 data_width) +{ + *p_cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(data_width); +} + +static int convert_burst_a10(u32 maxburst) { if (maxburst > 8) return -EINVAL; @@ -233,15 +273,15 @@ static struct sun4i_dma_pchan *find_and_use_pchan(struct sun4i_dma_dev *priv, int i, max; /* - * pchans 0-SUN4I_NDMA_NR_MAX_CHANNELS are normal, and - * SUN4I_NDMA_NR_MAX_CHANNELS+ are dedicated ones + * pchans 0-priv->cfg->ndma_nr_max_channels are normal, and + * priv->cfg->ndma_nr_max_channels+ are dedicated ones */ if (vchan->is_dedicated) { - i = SUN4I_NDMA_NR_MAX_CHANNELS; - max = SUN4I_DMA_NR_MAX_CHANNELS; + i = priv->cfg->ndma_nr_max_channels; + max = priv->cfg->dma_nr_max_channels; } else { i = 0; - max = SUN4I_NDMA_NR_MAX_CHANNELS; + max = priv->cfg->ndma_nr_max_channels; } spin_lock_irqsave(&priv->lock, flags); @@ -444,6 +484,7 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest, size_t len, struct dma_slave_config *sconfig, enum dma_transfer_direction direction) { + struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device); struct sun4i_dma_promise *promise; int ret; @@ -467,13 +508,13 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest, sconfig->src_addr_width, sconfig->dst_addr_width); /* Source burst */ - ret = convert_burst(sconfig->src_maxburst); + ret = priv->cfg->convert_burst(sconfig->src_maxburst); if (ret < 0) goto fail; promise->cfg |= SUN4I_DMA_CFG_SRC_BURST_LENGTH(ret); /* Destination burst */ - ret = convert_burst(sconfig->dst_maxburst); + ret = priv->cfg->convert_burst(sconfig->dst_maxburst); if (ret < 0) goto fail; promise->cfg |= SUN4I_DMA_CFG_DST_BURST_LENGTH(ret); @@ -482,13 +523,13 @@ generate_ndma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest, ret = convert_buswidth(sconfig->src_addr_width); if (ret < 0) goto fail; - promise->cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(ret); + priv->cfg->set_src_data_width(&promise->cfg, ret); /* Destination bus width */ ret = convert_buswidth(sconfig->dst_addr_width); if (ret < 0) goto fail; - promise->cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(ret); + priv->cfg->set_dst_data_width(&promise->cfg, ret); return promise; @@ -510,6 +551,7 @@ static struct sun4i_dma_promise * generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest, size_t len, struct dma_slave_config *sconfig) { + struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device); struct sun4i_dma_promise *promise; int ret; @@ -524,13 +566,13 @@ generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest, SUN4I_DDMA_CFG_BYTE_COUNT_MODE_REMAIN; /* Source burst */ - ret = convert_burst(sconfig->src_maxburst); + ret = priv->cfg->convert_burst(sconfig->src_maxburst); if (ret < 0) goto fail; promise->cfg |= SUN4I_DMA_CFG_SRC_BURST_LENGTH(ret); /* Destination burst */ - ret = convert_burst(sconfig->dst_maxburst); + ret = priv->cfg->convert_burst(sconfig->dst_maxburst); if (ret < 0) goto fail; promise->cfg |= SUN4I_DMA_CFG_DST_BURST_LENGTH(ret); @@ -539,13 +581,13 @@ generate_ddma_promise(struct dma_chan *chan, dma_addr_t src, dma_addr_t dest, ret = convert_buswidth(sconfig->src_addr_width); if (ret < 0) goto fail; - promise->cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(ret); + priv->cfg->set_src_data_width(&promise->cfg, ret); /* Destination bus width */ ret = convert_buswidth(sconfig->dst_addr_width); if (ret < 0) goto fail; - promise->cfg |= SUN4I_DMA_CFG_DST_DATA_WIDTH(ret); + priv->cfg->set_dst_data_width(&promise->cfg, ret); return promise; @@ -622,6 +664,7 @@ static struct dma_async_tx_descriptor * sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, size_t len, unsigned long flags) { + struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device); struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan); struct dma_slave_config *sconfig = &vchan->cfg; struct sun4i_dma_promise *promise; @@ -638,8 +681,8 @@ sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, */ sconfig->src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; sconfig->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - sconfig->src_maxburst = 8; - sconfig->dst_maxburst = 8; + sconfig->src_maxburst = priv->cfg->max_burst; + sconfig->dst_maxburst = priv->cfg->max_burst; if (vchan->is_dedicated) promise = generate_ddma_promise(chan, src, dest, len, sconfig); @@ -654,11 +697,13 @@ sun4i_dma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, /* Configure memcpy mode */ if (vchan->is_dedicated) { - promise->cfg |= SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_DDMA_DRQ_TYPE_SDRAM) | - SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_DDMA_DRQ_TYPE_SDRAM); + promise->cfg |= + SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ddma_drq_sdram) | + SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ddma_drq_sdram); } else { - promise->cfg |= SUN4I_DMA_CFG_SRC_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM) | - SUN4I_DMA_CFG_DST_DRQ_TYPE(SUN4I_NDMA_DRQ_TYPE_SDRAM); + promise->cfg |= + SUN4I_DMA_CFG_SRC_DRQ_TYPE(priv->cfg->ndma_drq_sdram) | + SUN4I_DMA_CFG_DST_DRQ_TYPE(priv->cfg->ndma_drq_sdram); } /* Fill the contract with our only promise */ @@ -673,6 +718,7 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len, size_t period_len, enum dma_transfer_direction dir, unsigned long flags) { + struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device); struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan); struct dma_slave_config *sconfig = &vchan->cfg; struct sun4i_dma_promise *promise; @@ -696,11 +742,11 @@ sun4i_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf, size_t len, if (vchan->is_dedicated) { io_mode = SUN4I_DDMA_ADDR_MODE_IO; linear_mode = SUN4I_DDMA_ADDR_MODE_LINEAR; - ram_type = SUN4I_DDMA_DRQ_TYPE_SDRAM; + ram_type = priv->cfg->ddma_drq_sdram; } else { io_mode = SUN4I_NDMA_ADDR_MODE_IO; linear_mode = SUN4I_NDMA_ADDR_MODE_LINEAR; - ram_type = SUN4I_NDMA_DRQ_TYPE_SDRAM; + ram_type = priv->cfg->ndma_drq_sdram; } if (dir == DMA_MEM_TO_DEV) { @@ -793,6 +839,7 @@ sun4i_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, enum dma_transfer_direction dir, unsigned long flags, void *context) { + struct sun4i_dma_dev *priv = to_sun4i_dma_dev(chan->device); struct sun4i_dma_vchan *vchan = to_sun4i_dma_vchan(chan); struct dma_slave_config *sconfig = &vchan->cfg; struct sun4i_dma_promise *promise; @@ -818,11 +865,11 @@ sun4i_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, if (vchan->is_dedicated) { io_mode = SUN4I_DDMA_ADDR_MODE_IO; linear_mode = SUN4I_DDMA_ADDR_MODE_LINEAR; - ram_type = SUN4I_DDMA_DRQ_TYPE_SDRAM; + ram_type = priv->cfg->ddma_drq_sdram; } else { io_mode = SUN4I_NDMA_ADDR_MODE_IO; linear_mode = SUN4I_NDMA_ADDR_MODE_LINEAR; - ram_type = SUN4I_NDMA_DRQ_TYPE_SDRAM; + ram_type = priv->cfg->ndma_drq_sdram; } if (dir == DMA_MEM_TO_DEV) @@ -1150,6 +1197,10 @@ static int sun4i_dma_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; + priv->cfg = of_device_get_match_data(&pdev->dev); + if (!priv->cfg) + return -ENODEV; + priv->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->base)) return PTR_ERR(priv->base); @@ -1197,23 +1248,26 @@ static int sun4i_dma_probe(struct platform_device *pdev) priv->slave.dev = &pdev->dev; - priv->pchans = devm_kcalloc(&pdev->dev, SUN4I_DMA_NR_MAX_CHANNELS, + priv->pchans = devm_kcalloc(&pdev->dev, priv->cfg->dma_nr_max_channels, sizeof(struct sun4i_dma_pchan), GFP_KERNEL); priv->vchans = devm_kcalloc(&pdev->dev, SUN4I_DMA_NR_MAX_VCHANS, sizeof(struct sun4i_dma_vchan), GFP_KERNEL); - if (!priv->vchans || !priv->pchans) + priv->pchans_used = devm_kcalloc(&pdev->dev, + BITS_TO_LONGS(priv->cfg->dma_nr_max_channels), + sizeof(unsigned long), GFP_KERNEL); + if (!priv->vchans || !priv->pchans || !priv->pchans_used) return -ENOMEM; /* - * [0..SUN4I_NDMA_NR_MAX_CHANNELS) are normal pchans, and - * [SUN4I_NDMA_NR_MAX_CHANNELS..SUN4I_DMA_NR_MAX_CHANNELS) are + * [0..priv->cfg->ndma_nr_max_channels) are normal pchans, and + * [priv->cfg->ndma_nr_max_channels..priv->cfg->dma_nr_max_channels) are * dedicated ones */ - for (i = 0; i < SUN4I_NDMA_NR_MAX_CHANNELS; i++) + for (i = 0; i < priv->cfg->ndma_nr_max_channels; i++) priv->pchans[i].base = priv->base + SUN4I_NDMA_CHANNEL_REG_BASE(i); - for (j = 0; i < SUN4I_DMA_NR_MAX_CHANNELS; i++, j++) { + for (j = 0; i < priv->cfg->dma_nr_max_channels; i++, j++) { priv->pchans[i].base = priv->base + SUN4I_DDMA_CHANNEL_REG_BASE(j); priv->pchans[i].is_dedicated = 1; @@ -1284,8 +1338,27 @@ static void sun4i_dma_remove(struct platform_device *pdev) clk_disable_unprepare(priv->clk); } +static struct sun4i_dma_config sun4i_a10_dma_cfg = { + .ndma_nr_max_channels = SUN4I_NDMA_NR_MAX_CHANNELS, + .ndma_nr_max_vchans = SUN4I_NDMA_NR_MAX_VCHANS, + + .ddma_nr_max_channels = SUN4I_DDMA_NR_MAX_CHANNELS, + .ddma_nr_max_vchans = SUN4I_DDMA_NR_MAX_VCHANS, + + .dma_nr_max_channels = SUN4I_DMA_NR_MAX_CHANNELS, + + .set_dst_data_width = set_dst_data_width_a10, + .set_src_data_width = set_src_data_width_a10, + .convert_burst = convert_burst_a10, + + .ndma_drq_sdram = SUN4I_NDMA_DRQ_TYPE_SDRAM, + .ddma_drq_sdram = SUN4I_DDMA_DRQ_TYPE_SDRAM, + + .max_burst = SUN4I_MAX_BURST, +}; + static const struct of_device_id sun4i_dma_match[] = { - { .compatible = "allwinner,sun4i-a10-dma" }, + { .compatible = "allwinner,sun4i-a10-dma", .data = &sun4i_a10_dma_cfg }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, sun4i_dma_match); From patchwork Sat Nov 2 09:31:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= X-Patchwork-Id: 13860058 Received: from fw2.prolan.hu (fw2.prolan.hu [193.68.50.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 76F9F13F435; Sat, 2 Nov 2024 09:35:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.68.50.107 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540110; cv=none; b=VeNMElg7xpeoD2d8IquclUPf7scy0S3vjcqff21gnPUREEZCpQ3k91hTYTqABYBxWQjXpIH6AjxBsuSVIsLwsj4UbaTCUOpO9ZjMWarWeYNom9iTk+BPGaJSpQto/fe0EtXdL17i18Jz5DYMDFbc2ZvENaDBtXV/q+cgfIAcg8s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540110; c=relaxed/simple; bh=lb3FdtmXZ529erMSGmzhPSy7EpTjJEz70QHNq9gp5aU=; 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Sat, 2 Nov 2024 10:35:07 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=prolan.hu; h=cc :cc:content-transfer-encoding:content-type:content-type:date :from:from:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=mail; bh=3gSDJcJrPViNORmKns1X DDGG2gwhKJjhbhUHWkJaQcU=; b=hFuR/P6nzQgLg4hUe+AJYjbLuRjsNer3j4ep QxET4tCIU4r9mwnRESmmDOicXA4+EI5wTjU7AxagFLNXiaPRPnE3ZtIbcvx5rbX9 2U48YPWrgcZhm5+792LjYUT5pa4uytsTKWF1nAaqwhqOt6xCo56hzbBlB2ACKXGA KvUKdvsZsXHJlRklMgW2p+uoIiwfTo2wIioMjwzJPHr82WpoIHGI9y6S/QeNttGy VSVoOM8Sd9I/xRJSaLhoFJEraUDNwoQH70SDa2cXOcnT3FtixGsZiy5iYTtiLqjo olDASN0fwwJE8t/EfY0H5zeDOm6UPMLlOIKMsHd9HCYdmSt7RMRV/oEJ+Tgs5x4c py2luAwES2OQ2fYhntmAH+pud3lLetHaXbD5dX7qYIzSFaTrtNyGLtECJgMncpyJ xCR3QYCbj8G7X2MpNk61Hn83XAc3BQDJE3UPax4QxqQNqhkBCfOOyHJJc5hXrrbg uL3TDA6cyKc51UrBLx872tY3NhyVbKoxsG7sA9sEDo4OWDVNJkMpDfwYxL9rVUF/ 72N+vybbPONyvExjy0kDpxutziFPCe/kOPSzYeaCz+oZgJW6RLcyVHhxb/9ehFvz SYOAApqFEJBnTJP/daTtKRBrjD/ViyasAXcq6C4OtLktxCQzT38mbHBXWGWxJxOZ ZFO9n1g= From: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= To: , , , CC: Mesih Kilinc , Krzysztof Kozlowski , =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= , Vinod Koul , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Philipp Zabel Subject: [PATCH v5 2/5] dma-engine: sun4i: Add has_reset option to quirk Date: Sat, 2 Nov 2024 10:31:41 +0100 Message-ID: <20241102093140.2625230-3-csokas.bence@prolan.hu> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241102093140.2625230-1-csokas.bence@prolan.hu> References: <20241102093140.2625230-1-csokas.bence@prolan.hu> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ESET-AS: R=OK;S=0;OP=CALC;TIME=1730540106;VERSION=7979;MC=3604976308;ID=220019;TRN=0;CRV=0;IPC=;SP=0;SIPS=0;PI=3;F=0 X-ESET-Antispam: OK X-EsetResult: clean, is OK X-EsetId: 37303A2980D94855667067 From: Mesih Kilinc Allwinner suniv F1C100s has a reset bit for DMA in CCU. Sun4i do not has this bit but in order to support suniv we need to add it. So add support for reset bit. Signed-off-by: Mesih Kilinc [ csokas.bence: Rebased and addressed comments ] Signed-off-by: Csókás, Bence --- Notes: Changes in v2: * Call reset_control_deassert() unconditionally, as it supports optional resets * Use dev_err_probe() * Whitespace Changes in v3: * More dev_err_probe() fixes Changes in v4: * Use return value of dev_err_probe() Changes in v5: * More whitespace drivers/dma/sun4i-dma.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c index b2c1e4b9f696..9d1e3c51342d 100644 --- a/drivers/dma/sun4i-dma.c +++ b/drivers/dma/sun4i-dma.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -159,6 +160,7 @@ struct sun4i_dma_config { u8 ddma_drq_sdram; u8 max_burst; + bool has_reset; }; struct sun4i_dma_pchan { @@ -208,6 +210,7 @@ struct sun4i_dma_dev { int irq; spinlock_t lock; const struct sun4i_dma_config *cfg; + struct reset_control *rst; }; static struct sun4i_dma_dev *to_sun4i_dma_dev(struct dma_device *dev) @@ -1215,6 +1218,13 @@ static int sun4i_dma_probe(struct platform_device *pdev) return PTR_ERR(priv->clk); } + if (priv->cfg->has_reset) { + priv->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL); + if (IS_ERR(priv->rst)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->rst), + "Failed to get reset control\n"); + } + platform_set_drvdata(pdev, priv); spin_lock_init(&priv->lock); @@ -1287,6 +1297,14 @@ static int sun4i_dma_probe(struct platform_device *pdev) return ret; } + /* Deassert the reset control */ + ret = reset_control_deassert(priv->rst); + if (ret) { + dev_err_probe(&pdev->dev, ret, + "Failed to deassert the reset control\n"); + goto err_clk_disable; + } + /* * Make sure the IRQs are all disabled and accounted for. The bootloader * likes to leave these dirty @@ -1355,6 +1373,7 @@ static struct sun4i_dma_config sun4i_a10_dma_cfg = { .ddma_drq_sdram = SUN4I_DDMA_DRQ_TYPE_SDRAM, .max_burst = SUN4I_MAX_BURST, + .has_reset = false, }; static const struct of_device_id sun4i_dma_match[] = { From patchwork Sat Nov 2 09:31:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= X-Patchwork-Id: 13860059 Received: from fw2.prolan.hu (fw2.prolan.hu [193.68.50.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B880E7602D; Sat, 2 Nov 2024 09:35:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.68.50.107 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540137; cv=none; b=mK6fWJiQNGgCtC5BxdaeNhq1mofb3bi/mv+/glxq2R9IPY86P+JIPe3iFMYQEmzAJudIjux0miIvlhD269DrFWt2/rU1gpx2C8rzmz5FiHyRjQPkas+/SwoBRA67oSLpeGRPAMohV0miRApZHMl+YKWreHXmrPg47kORpowAKWE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540137; c=relaxed/simple; bh=ir6r4uve2AbZDqjyE5oHzV6jdFhDtSE6EcSXfu8OCAw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=L6OvhdVTWFsiCRtZ0jba3ggFzsnhEUL8cZvbWjcbgEyJf+XIiCA1REW1H4gRG8sqGM7lSznhBzqPqdk92n90kKNJNOGf2xwpdDThLzL3f7ujFZBuKlPR8WEw3SmYYnOOmvJu4NzM8y+Z2n83xxK1R8oGM6V1BqE69G9OAAXmsVA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=prolan.hu; spf=pass smtp.mailfrom=prolan.hu; dkim=pass (4096-bit key) header.d=prolan.hu header.i=@prolan.hu header.b=D8Zbu/bs; arc=none smtp.client-ip=193.68.50.107 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=prolan.hu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=prolan.hu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=prolan.hu header.i=@prolan.hu header.b="D8Zbu/bs" Received: from proxmox-mailgw.intranet.prolan.hu (localhost.localdomain [127.0.0.1]) by proxmox-mailgw.intranet.prolan.hu (Proxmox) with ESMTP id 39507A0B13; Sat, 2 Nov 2024 10:35:34 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=prolan.hu; h=cc :cc:content-transfer-encoding:content-type:content-type:date :from:from:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=mail; bh=IJZcZJ9UkGG88e0G4cRY DgpG4uPgV6cApvRZoFsAFwQ=; b=D8Zbu/bskVQpbJkw8hvklIWpJD6uEwdyatPh /atkFTTpLgmF0iYLikM4tathVSmKAwi/XBwz9du0xi4bLVSlC7DqFleNtzMDCg2t +jBSOTlR6399KA9ERmfVZE42YgzH/rxvckTAtiumj40a+W+Js0OZUhNLT99mz5T9 kenb3IJUQN2xKP9SOt55+zfNg65RBbKqc0dMcVBt7eeN3sJuoo7ki/28fn1WBIol vsVuMEKN/36cX05KVi9dUCaKW2nNnt3yolUE7R71ENF45BaxdiFEOyQ/8QhaeZWU dahdwBF01n81rcgBY6a/ED3N3OPINLLYl3Mh1HDQuEU76mgKp8XvuuUxDNjVEdv3 EZbWYzIVFmKlQOfxEH/WsbIiozk7LAwS+Cf0jn82XSOn9hzQ4RssuM8RcJqDQYzr WTTssXImKErCalGMJyUAQbOc0N7JtVPTV+YYb/eoK9J1HWwCQZEXJ6w0nCVhOA8t BiFzaOl+BiTJAzbKSIf3FAydHZSEPJJnVYn55RppFrUIu+boJg5FMVz8PwPnsY+f tA7AOJKWytLrPWdY56HlgQ/YKvX+2Z3nz29gHcANFlb/b7lw58CKnSYCLJouykJv ZfFrgsWnS53ZaKW4ePpr3IwDPbaMalLrUEucaYHPwgigcwghHQfMSnD0f9tF+fEU LSNrJ8w= From: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= To: Chen-Yu Tsai , Maxime Ripard , , , , , CC: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= , "Conor Dooley" , Vinod Koul , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Jernej Skrabec , Samuel Holland Subject: [PATCH v5 3/5] dt-bindings: dmaengine: Add Allwinner suniv F1C100s DMA Date: Sat, 2 Nov 2024 10:31:42 +0100 Message-ID: <20241102093140.2625230-4-csokas.bence@prolan.hu> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241102093140.2625230-1-csokas.bence@prolan.hu> References: <20241102093140.2625230-1-csokas.bence@prolan.hu> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ESET-AS: R=OK;S=0;OP=CALC;TIME=1730540133;VERSION=7979;MC=3378102548;ID=220020;TRN=0;CRV=0;IPC=;SP=0;SIPS=0;PI=3;F=0 X-ESET-Antispam: OK X-EsetResult: clean, is OK X-EsetId: 37303A2980D94855667067 Add compatible string for Allwinner suniv F1C100s DMA. Acked-by: Conor Dooley [ csokas.bence: Reimplemented Mesih Kilinc's binding in YAML ] Signed-off-by: Csókás, Bence --- .../devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml index 02d5bd035409..9b5180c0a7c4 100644 --- a/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml +++ b/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml @@ -22,7 +22,9 @@ properties: number. compatible: - const: allwinner,sun4i-a10-dma + enum: + - allwinner,sun4i-a10-dma + - allwinner,suniv-f1c100s-dma reg: maxItems: 1 From patchwork Sat Nov 2 09:31:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= X-Patchwork-Id: 13860060 Received: from fw2.prolan.hu (fw2.prolan.hu [193.68.50.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D937F155336; Sat, 2 Nov 2024 09:36:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.68.50.107 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540174; cv=none; b=oz6fAldfn/rxf/HGdZZ1cgZVtZ4pxpxVyjYTJF0PUWM1T3XdFZeMzE7teyjrZa52zpTbetw26okqJFjgbJiu5rkqi+lMyRRM5sVOoOsiMAhBej+i9diERgVOY394Ii1LZZ01CNOofWI0phOqj1gBP8gdYdaxrb5I+d4+QQawoKY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730540174; c=relaxed/simple; bh=zeXAIEsFUMmuU1POixTf74LalJUYReBKcOOBpIxkTIw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=gTs/i8sfFSLM7n08ZRpiTRmpv1oe9I7k21KhzFkY/h2znR6yqBDObWJMO7ssrgzGD3BQxUFy/Yp9BXNlU0/iSi0qr61Vbmwkc4FlK9i5sKUZYjrTK/YyQ35Axnz4/PzhLjPtgYjw1IJp5CVozs2paiRh9jnJSml27FcToHqv1ls= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=prolan.hu; spf=pass smtp.mailfrom=prolan.hu; dkim=pass (4096-bit key) header.d=prolan.hu header.i=@prolan.hu header.b=Zmni2bUr; arc=none smtp.client-ip=193.68.50.107 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=prolan.hu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=prolan.hu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=prolan.hu header.i=@prolan.hu header.b="Zmni2bUr" Received: from proxmox-mailgw.intranet.prolan.hu (localhost.localdomain [127.0.0.1]) by proxmox-mailgw.intranet.prolan.hu (Proxmox) with ESMTP id 5E4E8A0B13; Sat, 2 Nov 2024 10:36:11 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=prolan.hu; h=cc :cc:content-transfer-encoding:content-type:content-type:date :from:from:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=mail; bh=R+s79tNU1qd1nw+H4G/Q NlTSgR+QCMq5J2qciEy4mHk=; b=Zmni2bUr6o3F2ZEUehyEYpcfRGqeiTVWHpEL YECTREMh0iY3uaujQwwpw64TDhcr1T9YUtJzwlangm1FbrFscFJuisrJRlQByePb 5yrLvtyTtLkqM8By8kEFHRk3RLSfCXbT5+ph9Au0RiRhT8i4svqP3NEAWRUD54ML CX2TlKD4FtYC0CJuen2ggz5C8l4jYILepX0+cP2kxLutuxZ8fYhRrt51wfDuehRb w1+83xGIJ+PEeMHPuQIpY1SGYiUi/bBwvLL4JbL5WCmJOvI6WowT4UMPtu9J8Sg3 kfC1H7UUAnudiQI9sevYQYojHkOsqJ0vuPzxZHi0fcmD+dyserR2/SkTThFnqOCD cfl1DawDGC2VzWHghiVQXQGgrbgKDmXLo5t8h0KtVcIOfkBpG9lAFFHHw8czFpnc BGIlK7lehDChDTotixTA1AMT4BEaHb7S1fWJKpVpEantHWQzokyocKeCi1YQHufU LUZPsxlhzKGLeT6lZ57+Jm1E/qVoiWTqM+iRDY+rgGnpVk18x1uhFZbFM0ZCGCwg voMg37SNZ1rBoQuJ8J55P0f66ouVTv404li8ELQQ1B+d7NJ1xZ0YmgMSfvL4k7FE hynFnaxok2H5Kr3ygvpy0N6WI+j3uB8xpRzGJ+JlBtcbeJhN988jEQEMoj2Xh4e7 wNChgQ4= From: =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= To: , , , CC: Mesih Kilinc , =?utf-8?b?Q3PDs2vDoXMsIEJlbmNl?= , Vinod Koul , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Subject: [PATCH v5 4/5] dma-engine: sun4i: Add support for Allwinner suniv F1C100s Date: Sat, 2 Nov 2024 10:31:43 +0100 Message-ID: <20241102093140.2625230-5-csokas.bence@prolan.hu> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241102093140.2625230-1-csokas.bence@prolan.hu> References: <20241102093140.2625230-1-csokas.bence@prolan.hu> Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ESET-AS: R=OK;S=0;OP=CALC;TIME=1730540170;VERSION=7979;MC=1301189787;ID=220021;TRN=0;CRV=0;IPC=;SP=0;SIPS=0;PI=3;F=0 X-ESET-Antispam: OK X-EsetResult: clean, is OK X-EsetId: 37303A2980D94855667067 From: Mesih Kilinc DMA of Allwinner suniv F1C100s is similar to sun4i. It has 4 NDMA, 4 DDMA channels and endpoints are different. Also F1C100s has reset bit for DMA in CCU. Add support for it. Signed-off-by: Mesih Kilinc [ csokas.bence: Rebased on current master ] Signed-off-by: Csókás, Bence --- drivers/dma/Kconfig | 4 +-- drivers/dma/sun4i-dma.c | 60 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 62 insertions(+), 2 deletions(-) diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index d9ec1e69e428..fc25bfc356f3 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -162,8 +162,8 @@ config DMA_SA11X0 config DMA_SUN4I tristate "Allwinner A10 DMA SoCs support" - depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I - default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I) + depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV + default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNIV) select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c index 9d1e3c51342d..e8c656f0ac63 100644 --- a/drivers/dma/sun4i-dma.c +++ b/drivers/dma/sun4i-dma.c @@ -33,7 +33,11 @@ #define SUN4I_DMA_CFG_SRC_ADDR_MODE(mode) ((mode) << 5) #define SUN4I_DMA_CFG_SRC_DRQ_TYPE(type) (type) +#define SUNIV_DMA_CFG_DST_DATA_WIDTH(width) ((width) << 24) +#define SUNIV_DMA_CFG_SRC_DATA_WIDTH(width) ((width) << 8) + #define SUN4I_MAX_BURST 8 +#define SUNIV_MAX_BURST 4 /** Normal DMA register values **/ @@ -41,6 +45,9 @@ #define SUN4I_NDMA_DRQ_TYPE_SDRAM 0x16 #define SUN4I_NDMA_DRQ_TYPE_LIMIT (0x1F + 1) +#define SUNIV_NDMA_DRQ_TYPE_SDRAM 0x11 +#define SUNIV_NDMA_DRQ_TYPE_LIMIT (0x17 + 1) + /** Normal DMA register layout **/ /* Dedicated DMA source/destination address mode values */ @@ -54,6 +61,9 @@ #define SUN4I_NDMA_CFG_BYTE_COUNT_MODE_REMAIN BIT(15) #define SUN4I_NDMA_CFG_SRC_NON_SECURE BIT(6) +#define SUNIV_NDMA_CFG_CONT_MODE BIT(29) +#define SUNIV_NDMA_CFG_WAIT_STATE(n) ((n) << 26) + /** Dedicated DMA register values **/ /* Dedicated DMA source/destination address mode values */ @@ -66,6 +76,9 @@ #define SUN4I_DDMA_DRQ_TYPE_SDRAM 0x1 #define SUN4I_DDMA_DRQ_TYPE_LIMIT (0x1F + 1) +#define SUNIV_DDMA_DRQ_TYPE_SDRAM 0x1 +#define SUNIV_DDMA_DRQ_TYPE_LIMIT (0x9 + 1) + /** Dedicated DMA register layout **/ /* Dedicated DMA configuration register layout */ @@ -119,6 +132,11 @@ #define SUN4I_DMA_NR_MAX_VCHANS \ (SUN4I_NDMA_NR_MAX_VCHANS + SUN4I_DDMA_NR_MAX_VCHANS) +#define SUNIV_NDMA_NR_MAX_CHANNELS 4 +#define SUNIV_DDMA_NR_MAX_CHANNELS 4 +#define SUNIV_NDMA_NR_MAX_VCHANS (24 * 2 - 1) +#define SUNIV_DDMA_NR_MAX_VCHANS 10 + /* This set of SUN4I_DDMA timing parameters were found experimentally while * working with the SPI driver and seem to make it behave correctly */ #define SUN4I_DDMA_MAGIC_SPI_PARAMETERS \ @@ -243,6 +261,16 @@ static void set_src_data_width_a10(u32 *p_cfg, s8 data_width) *p_cfg |= SUN4I_DMA_CFG_SRC_DATA_WIDTH(data_width); } +static void set_dst_data_width_f1c100s(u32 *p_cfg, s8 data_width) +{ + *p_cfg |= SUNIV_DMA_CFG_DST_DATA_WIDTH(data_width); +} + +static void set_src_data_width_f1c100s(u32 *p_cfg, s8 data_width) +{ + *p_cfg |= SUNIV_DMA_CFG_SRC_DATA_WIDTH(data_width); +} + static int convert_burst_a10(u32 maxburst) { if (maxburst > 8) @@ -252,6 +280,15 @@ static int convert_burst_a10(u32 maxburst) return (maxburst >> 2); } +static int convert_burst_f1c100s(u32 maxburst) +{ + if (maxburst > 4) + return -EINVAL; + + /* 1 -> 0, 4 -> 1 */ + return (maxburst >> 2); +} + static int convert_buswidth(enum dma_slave_buswidth addr_width) { if (addr_width > DMA_SLAVE_BUSWIDTH_4_BYTES) @@ -1376,8 +1413,31 @@ static struct sun4i_dma_config sun4i_a10_dma_cfg = { .has_reset = false, }; +static struct sun4i_dma_config suniv_f1c100s_dma_cfg = { + .ndma_nr_max_channels = SUNIV_NDMA_NR_MAX_CHANNELS, + .ndma_nr_max_vchans = SUNIV_NDMA_NR_MAX_VCHANS, + + .ddma_nr_max_channels = SUNIV_DDMA_NR_MAX_CHANNELS, + .ddma_nr_max_vchans = SUNIV_DDMA_NR_MAX_VCHANS, + + .dma_nr_max_channels = SUNIV_NDMA_NR_MAX_CHANNELS + + SUNIV_DDMA_NR_MAX_CHANNELS, + + .set_dst_data_width = set_dst_data_width_f1c100s, + .set_src_data_width = set_src_data_width_f1c100s, + .convert_burst = convert_burst_f1c100s, + + .ndma_drq_sdram = SUNIV_NDMA_DRQ_TYPE_SDRAM, + .ddma_drq_sdram = SUNIV_DDMA_DRQ_TYPE_SDRAM, + + .max_burst = SUNIV_MAX_BURST, + .has_reset = true, +}; + static const struct of_device_id sun4i_dma_match[] = { { .compatible = "allwinner,sun4i-a10-dma", .data = &sun4i_a10_dma_cfg }, + { .compatible = "allwinner,suniv-f1c100s-dma", + .data = &suniv_f1c100s_dma_cfg }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, sun4i_dma_match);