From patchwork Tue Oct 16 04:19:18 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 1598721 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id B911C3FD86 for ; Tue, 16 Oct 2012 04:22:04 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TNydi-0001cP-LG; Tue, 16 Oct 2012 04:20:22 +0000 Received: from casper.infradead.org ([2001:770:15f::2]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TNydQ-0001ZI-Ll for linux-arm-kernel@merlin.infradead.org; Tue, 16 Oct 2012 04:20:04 +0000 Received: from service87.mimecast.com ([91.220.42.44]) by casper.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TNydG-0000Hg-6V for linux-arm-kernel@lists.infradead.org; Tue, 16 Oct 2012 04:20:03 +0000 Received: from cam-owa1.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Tue, 16 Oct 2012 05:19:41 +0100 Received: from localhost ([10.1.255.212]) by cam-owa1.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.0); Tue, 16 Oct 2012 05:19:39 +0100 From: Viresh Kumar To: vinod.koul@intel.com Subject: [PATCH V3 3/3] ARM: SPEAr13xx: Pass DW DMAC platform data from DT Date: Tue, 16 Oct 2012 09:49:18 +0530 Message-Id: X-Mailer: git-send-email 1.7.12.rc2.18.g61b472e In-Reply-To: <3100e691db3f94c22afd98b609a1568d7e70dfe7.1350360935.git.viresh.kumar@linaro.org> References: <3100e691db3f94c22afd98b609a1568d7e70dfe7.1350360935.git.viresh.kumar@linaro.org> In-Reply-To: <3100e691db3f94c22afd98b609a1568d7e70dfe7.1350360935.git.viresh.kumar@linaro.org> References: <3100e691db3f94c22afd98b609a1568d7e70dfe7.1350360935.git.viresh.kumar@linaro.org> X-OriginalArrivalTime: 16 Oct 2012 04:19:39.0335 (UTC) FILETIME=[755F1D70:01CDAB55] X-MC-Unique: 112101605194101401 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20121016_051954_638858_3631FC59 X-CRM114-Status: GOOD ( 14.40 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on casper.infradead.org summary: Content analysis details: (-2.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [91.220.42.44 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Viresh Kumar , devicetree-discuss@lists.ozlabs.org, spear-devel@list.st.com, linux-kernel@vger.kernel.org, andriy.shevchenko@linux.intel.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch adds dw_dmac's platform data to DT node. It also creates slave info node for SPEAr13xx, for the devices which were using dw_dmac. Signed-off-by: Viresh Kumar --- V1->V3: ------ - renamed filter function arch/arm/boot/dts/spear1340.dtsi | 19 ++++++++++ arch/arm/boot/dts/spear13xx.dtsi | 38 ++++++++++++++++++++ arch/arm/mach-spear13xx/include/mach/spear.h | 2 -- arch/arm/mach-spear13xx/spear1310.c | 4 +-- arch/arm/mach-spear13xx/spear1340.c | 27 +++----------- arch/arm/mach-spear13xx/spear13xx.c | 54 ++-------------------------- 6 files changed, 65 insertions(+), 79 deletions(-) diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi index d71fe2a..8ea3f66 100644 --- a/arch/arm/boot/dts/spear1340.dtsi +++ b/arch/arm/boot/dts/spear1340.dtsi @@ -24,6 +24,25 @@ status = "disabled"; }; + dma@ea800000 { + slave_info { + uart1_tx { + bus_id = "uart1_tx"; + cfg_hi = <0x6000>; /* 0xC << 11 */ + cfg_lo = <0>; + src_master = <0>; + dst_master = <1>; + }; + uart1_tx { + bus_id = "uart1_tx"; + cfg_hi = <0x680>; /* 0xD << 7 */ + cfg_lo = <0>; + src_master = <1>; + dst_master = <0>; + }; + }; + }; + spi1: spi@5d400000 { compatible = "arm,pl022", "arm,primecell"; reg = <0x5d400000 0x1000>; diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi index f7b84ac..f06bb50 100644 --- a/arch/arm/boot/dts/spear13xx.dtsi +++ b/arch/arm/boot/dts/spear13xx.dtsi @@ -91,6 +91,37 @@ reg = <0xea800000 0x1000>; interrupts = <0 19 0x4>; status = "disabled"; + + nr_channels = <8>; + chan_allocation_order = <1>; + chan_priority = <1>; + block_size = <0xfff>; + nr_masters = <2>; + data_width = <3 3 0 0>; + + slave_info { + ssp0_tx { + bus_id = "ssp0_tx"; + cfg_hi = <0x2000>; /* 0x4 << 11 */ + cfg_lo = <0>; + src_master = <0>; + dst_master = <0>; + }; + ssp0_rx { + bus_id = "ssp0_rx"; + cfg_hi = <0x280>; /* 0x5 << 7 */ + cfg_lo = <0>; + src_master = <0>; + dst_master = <0>; + }; + cf { + bus_id = "cf"; + cfg_hi = <0>; + cfg_lo = <0>; + src_master = <0>; + dst_master = <0>; + }; + }; }; dma@eb000000 { @@ -98,6 +129,13 @@ reg = <0xeb000000 0x1000>; interrupts = <0 59 0x4>; status = "disabled"; + + nr_channels = <8>; + chan_allocation_order = <1>; + chan_priority = <1>; + block_size = <0xfff>; + nr_masters = <2>; + data_width = <3 3 0 0>; }; fsmc: flash@b0000000 { diff --git a/arch/arm/mach-spear13xx/include/mach/spear.h b/arch/arm/mach-spear13xx/include/mach/spear.h index 07d90ac..71bf5b6 100644 --- a/arch/arm/mach-spear13xx/include/mach/spear.h +++ b/arch/arm/mach-spear13xx/include/mach/spear.h @@ -43,8 +43,6 @@ #define VA_L2CC_BASE IOMEM(UL(0xFB000000)) /* others */ -#define DMAC0_BASE UL(0xEA800000) -#define DMAC1_BASE UL(0xEB000000) #define MCIF_CF_BASE UL(0xB2800000) /* Devices present in SPEAr1310 */ diff --git a/arch/arm/mach-spear13xx/spear1310.c b/arch/arm/mach-spear13xx/spear1310.c index 9fbbfc5..0e60195 100644 --- a/arch/arm/mach-spear13xx/spear1310.c +++ b/arch/arm/mach-spear13xx/spear1310.c @@ -36,9 +36,7 @@ static struct pl022_ssp_controller ssp1_plat_data = { /* Add SPEAr1310 auxdata to pass platform data */ static struct of_dev_auxdata spear1310_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_dma_priv), - OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data), - OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data), + OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, "cf"), OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data), OF_DEV_AUXDATA("arm,pl022", SPEAR1310_SSP1_BASE, NULL, &ssp1_plat_data), diff --git a/arch/arm/mach-spear13xx/spear1340.c b/arch/arm/mach-spear13xx/spear1340.c index 081014f..7301f14 100644 --- a/arch/arm/mach-spear13xx/spear1340.c +++ b/arch/arm/mach-spear13xx/spear1340.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include @@ -78,26 +77,10 @@ (SPEAR1340_MIPHY_OSC_BYPASS_EXT | \ SPEAR1340_MIPHY_PLL_RATIO_TOP(25)) -static struct dw_dma_slave uart1_dma_param[] = { - { - /* Tx */ - .cfg_hi = DWC_CFGH_DST_PER(SPEAR1340_DMA_REQ_UART1_TX), - .cfg_lo = 0, - .src_master = DMA_MASTER_MEMORY, - .dst_master = SPEAR1340_DMA_MASTER_UART1, - }, { - /* Rx */ - .cfg_hi = DWC_CFGH_SRC_PER(SPEAR1340_DMA_REQ_UART1_RX), - .cfg_lo = 0, - .src_master = SPEAR1340_DMA_MASTER_UART1, - .dst_master = DMA_MASTER_MEMORY, - } -}; - static struct amba_pl011_data uart1_data = { - .dma_filter = dw_dma_filter, - .dma_tx_param = &uart1_dma_param[0], - .dma_rx_param = &uart1_dma_param[1], + .dma_filter = dw_dma_generic_filter, + .dma_tx_param = "uart1_tx", + .dma_rx_param = "uart1_rx", }; /* SATA device registration */ @@ -158,9 +141,7 @@ static struct ahci_platform_data sata_pdata = { /* Add SPEAr1340 auxdata to pass platform data */ static struct of_dev_auxdata spear1340_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_dma_priv), - OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data), - OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data), + OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, "cf"), OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data), OF_DEV_AUXDATA("snps,spear-ahci", SPEAR1340_SATA_BASE, NULL, diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c index 5633d69..0e166fa 100644 --- a/arch/arm/mach-spear13xx/spear13xx.c +++ b/arch/arm/mach-spear13xx/spear13xx.c @@ -22,67 +22,19 @@ #include #include #include -#include #include #include -/* common dw_dma filter routine to be used by peripherals */ -bool dw_dma_filter(struct dma_chan *chan, void *slave) -{ - struct dw_dma_slave *dws = (struct dw_dma_slave *)slave; - - if (chan->device->dev == dws->dma_dev) { - chan->private = slave; - return true; - } else { - return false; - } -} - /* ssp device registration */ -static struct dw_dma_slave ssp_dma_param[] = { - { - /* Tx */ - .cfg_hi = DWC_CFGH_DST_PER(DMA_REQ_SSP0_TX), - .cfg_lo = 0, - .src_master = DMA_MASTER_MEMORY, - .dst_master = DMA_MASTER_SSP0, - }, { - /* Rx */ - .cfg_hi = DWC_CFGH_SRC_PER(DMA_REQ_SSP0_RX), - .cfg_lo = 0, - .src_master = DMA_MASTER_SSP0, - .dst_master = DMA_MASTER_MEMORY, - } -}; - struct pl022_ssp_controller pl022_plat_data = { .bus_id = 0, .enable_dma = 1, - .dma_filter = dw_dma_filter, - .dma_rx_param = &ssp_dma_param[1], - .dma_tx_param = &ssp_dma_param[0], + .dma_filter = dw_dma_generic_filter, + .dma_rx_param = "ssp0_rx", + .dma_tx_param = "ssp0_tx", .num_chipselect = 3, }; -/* CF device registration */ -struct dw_dma_slave cf_dma_priv = { - .cfg_hi = 0, - .cfg_lo = 0, - .src_master = 0, - .dst_master = 0, -}; - -/* dmac device registeration */ -struct dw_dma_platform_data dmac_plat_data = { - .nr_channels = 8, - .chan_allocation_order = CHAN_ALLOCATION_DESCENDING, - .chan_priority = CHAN_PRIORITY_DESCENDING, - .block_size = 4095U, - .nr_masters = 2, - .data_width = { 3, 3, 0, 0 }, -}; - void __init spear13xx_l2x0_init(void) { /*