From patchwork Wed Mar 17 13:41:50 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sekhar Nori X-Patchwork-Id: 86337 Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o2HDmLh4003168 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 17 Mar 2010 13:48:59 GMT Received: from dlep35.itg.ti.com ([157.170.170.118]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id o2HDfvFp016369 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 17 Mar 2010 08:41:57 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by dlep35.itg.ti.com (8.13.7/8.13.7) with ESMTP id o2HDfuMq012168; Wed, 17 Mar 2010 08:41:57 -0500 (CDT) Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 2FB5980627; Wed, 17 Mar 2010 07:41:56 -0600 (CST) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dbdp31.itg.ti.com (dbdp31.itg.ti.com [172.24.170.98]) by linux.omap.com (Postfix) with ESMTP id C855D80626 for ; Wed, 17 Mar 2010 07:41:53 -0600 (CST) Received: from psplinux051.india.ti.com (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id o2HDfoG9016845; Wed, 17 Mar 2010 19:11:51 +0530 (IST) Received: from psplinux051.india.ti.com (localhost [127.0.0.1]) by psplinux051.india.ti.com (8.13.1/8.13.1) with ESMTP id o2HDfoS3014678; Wed, 17 Mar 2010 19:11:50 +0530 Received: (from a0875516@localhost) by psplinux051.india.ti.com (8.13.1/8.13.1/Submit) id o2HDfo1P014675; Wed, 17 Mar 2010 19:11:50 +0530 From: Sekhar Nori To: davinci-linux-open-source@linux.davincidsp.com Subject: [PATCH v4 3/3] davinci: dm646x EVM: Specify reserved EDMA channel/slots Date: Wed, 17 Mar 2010 19:11:50 +0530 Message-Id: <1268833310-14536-3-git-send-email-nsekhar@ti.com> X-Mailer: git-send-email 1.6.2.4 In-Reply-To: <1268833310-14536-2-git-send-email-nsekhar@ti.com> References: <1268833310-14536-1-git-send-email-nsekhar@ti.com> <1268833310-14536-2-git-send-email-nsekhar@ti.com> X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: davinci-linux-open-source-bounces@linux.davincidsp.com Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 17 Mar 2010 13:48:59 +0000 (UTC) diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index 5ba3cb2..d14f962 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -724,6 +724,39 @@ static struct davinci_uart_config uart_config __initdata = { #define DM646X_EVM_PHY_MASK (0x2) #define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ +/* + * The following EDMA channels/slots are not being used by drivers (for + * example: Timer, GPIO, UART events etc) on dm646x, hence they are being + * reserved for codecs on the DSP side. + */ +static const s16 dm646x_dma_rsv_chans[][2] = { + /* (offset, number) */ + { 0, 4}, + {13, 3}, + {24, 4}, + {30, 2}, + {54, 3}, + {-1, -1} +}; + +static const s16 dm646x_dma_rsv_slots[][2] = { + /* (offset, number) */ + { 0, 4}, + {13, 3}, + {24, 4}, + {30, 2}, + {54, 3}, + {128, 384}, + {-1, -1} +}; + +static struct edma_rsv_info dm646x_edma_rsv[] = { + { + .rsv_chans = dm646x_dma_rsv_chans, + .rsv_slots = dm646x_dma_rsv_slots, + }, +}; + static __init void evm_init(void) { struct davinci_soc_info *soc_info = &davinci_soc_info; @@ -735,6 +768,8 @@ static __init void evm_init(void) platform_device_register(&davinci_nand_device); + dm646x_init_edma(dm646x_edma_rsv); + if (HAS_ATA) dm646x_init_ide(); diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index 893baf4..fb48c24 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -912,6 +912,13 @@ void dm646x_setup_vpif(struct vpif_display_config *display_config, platform_device_register(&vpif_capture_dev); } +int __init dm646x_init_edma(struct edma_rsv_info *rsv) +{ + dm646x_edma_info[0].rsv = rsv; + + return platform_device_register(&dm646x_edma_device); +} + void __init dm646x_init(void) { dm646x_board_setup_refclk(&ref_clk); @@ -923,7 +930,6 @@ static int __init dm646x_init_devices(void) if (!cpu_is_davinci_dm646x()) return 0; - platform_device_register(&dm646x_edma_device); platform_device_register(&dm646x_emac_device); return 0; } diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h index 846da98..38c7d87 100644 --- a/arch/arm/mach-davinci/include/mach/dm646x.h +++ b/arch/arm/mach-davinci/include/mach/dm646x.h @@ -32,6 +32,7 @@ void __init dm646x_init_ide(void); void __init dm646x_init_mcasp0(struct snd_platform_data *pdata); void __init dm646x_init_mcasp1(struct snd_platform_data *pdata); void __init dm646x_board_setup_refclk(struct clk *clk); +int __init dm646x_init_edma(struct edma_rsv_info *rsv); void dm646x_video_init(void);