From patchwork Fri Nov 11 00:39:42 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Yanok X-Patchwork-Id: 125032 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 40938B6F72 for ; Fri, 11 Nov 2011 11:41:35 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id AF1A32902A; Fri, 11 Nov 2011 01:41:01 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZUgdfeQyB5o9; Fri, 11 Nov 2011 01:41:01 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 6C68328F4A; Fri, 11 Nov 2011 01:40:18 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 62AE628E05 for ; Fri, 11 Nov 2011 01:39:59 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NN5e6RO5Tnur for ; Fri, 11 Nov 2011 01:39:59 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from pollux.denx.de (host-82-135-33-74.customer.m-online.net [82.135.33.74]) by theia.denx.de (Postfix) with ESMTP id 846E028E0A for ; Fri, 11 Nov 2011 01:39:54 +0100 (CET) Received: by pollux.denx.de (Postfix, from userid 547) id D1E544111; Fri, 11 Nov 2011 01:39:52 +0100 (CET) From: Ilya Yanok To: u-boot@lists.denx.de Date: Fri, 11 Nov 2011 01:39:42 +0100 Message-Id: <1320971988-23525-8-git-send-email-yanok@emcraft.com> X-Mailer: git-send-email 1.7.6.4 In-Reply-To: <1320971988-23525-1-git-send-email-yanok@emcraft.com> References: <1320971988-23525-1-git-send-email-yanok@emcraft.com> Cc: Ilya Yanok , sasha_d@emcraft.com Subject: [U-Boot] [PATCH 07/13] AM35xx: add EMAC support X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.9 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de AM35xx has DaVinci-compatible EMAC. Signed-off-by: Ilya Yanok --- arch/arm/cpu/armv7/omap3/Makefile | 1 + arch/arm/cpu/armv7/omap3/emac.c | 44 +++++++++++++++++++++ arch/arm/include/asm/arch-omap3/am35x_def.h | 3 + arch/arm/include/asm/arch-omap3/emac_defs.h | 56 +++++++++++++++++++++++++++ 4 files changed, 104 insertions(+), 0 deletions(-) create mode 100644 arch/arm/cpu/armv7/omap3/emac.c create mode 100644 arch/arm/include/asm/arch-omap3/emac_defs.h diff --git a/arch/arm/cpu/armv7/omap3/Makefile b/arch/arm/cpu/armv7/omap3/Makefile index 8e85891..6ebfd32 100644 --- a/arch/arm/cpu/armv7/omap3/Makefile +++ b/arch/arm/cpu/armv7/omap3/Makefile @@ -32,6 +32,7 @@ COBJS += clock.o COBJS += mem.o COBJS += sys_info.o +COBJS-$(CONFIG_DRIVER_TI_EMAC) += emac.o COBJS-$(CONFIG_EMIF4) += emif4.o COBJS-$(CONFIG_SDRC) += sdrc.o diff --git a/arch/arm/cpu/armv7/omap3/emac.c b/arch/arm/cpu/armv7/omap3/emac.c new file mode 100644 index 0000000..14667f1 --- /dev/null +++ b/arch/arm/cpu/armv7/omap3/emac.c @@ -0,0 +1,44 @@ +/* + * + * DaVinci EMAC initialization. + * + * (C) Copyright 2011, Ilya Yanok, Emcraft Systems + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc. + */ + +#include +#include +#include +#include + +/* + * Initializes on-chip ethernet controllers. + * to override, implement board_eth_init() + */ +int cpu_eth_init(bd_t *bis) +{ + u32 reset; + + /* ensure that the module is out of reset */ + reset = readl(&am35x_scm_general_regs->ip_sw_reset); + reset &= ~CPGMACSS_SW_RST; + writel(reset, &am35x_scm_general_regs->ip_sw_reset); + + return davinci_emac_initialize(); +} diff --git a/arch/arm/include/asm/arch-omap3/am35x_def.h b/arch/arm/include/asm/arch-omap3/am35x_def.h index 81942a8..bbaf1bc 100644 --- a/arch/arm/include/asm/arch-omap3/am35x_def.h +++ b/arch/arm/include/asm/arch-omap3/am35x_def.h @@ -32,6 +32,9 @@ #ifndef __KERNEL_STRICT_NAMES #ifndef __ASSEMBLY__ +/* IP_SW_RESET bits */ +#define CPGMACSS_SW_RST (1 << 1) /* reset CPGMAC */ + /* General register mappings of system control module */ #define AM35X_SCM_GEN_BASE 0x48002270 struct am35x_scm_general { diff --git a/arch/arm/include/asm/arch-omap3/emac_defs.h b/arch/arm/include/asm/arch-omap3/emac_defs.h new file mode 100644 index 0000000..8506c55 --- /dev/null +++ b/arch/arm/include/asm/arch-omap3/emac_defs.h @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2007 Sergey Kubushyn + * + * Based on: + * + * ---------------------------------------------------------------------------- + * + * dm644x_emac.h + * + * TI DaVinci (DM644X) EMAC peripheral driver header for DV-EVM + * + * Copyright (C) 2005 Texas Instruments. + * + * ---------------------------------------------------------------------------- + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * ---------------------------------------------------------------------------- + + * Modifications: + * ver. 1.0: Sep 2005, TI PSP Team - Created EMAC version for uBoot. + * + */ + +#ifndef _AM3517_EMAC_H_ +#define _AM3517_EMAC_H_ + +#define EMAC_BASE_ADDR 0x5C010000 +#define EMAC_WRAPPER_BASE_ADDR 0x5C000000 +#define EMAC_WRAPPER_RAM_ADDR 0x5C020000 +#define EMAC_MDIO_BASE_ADDR 0x5C030000 +#define EMAC_HW_RAM_ADDR 0x01E20000 + +#define EMAC_MDIO_BUS_FREQ 166000000 /* 166 MHZ check */ +#define EMAC_MDIO_CLOCK_FREQ 1000000 /* 2.0 MHz */ + +/* SOFTRESET macro definition interferes with emac_regs structure definition */ +#undef SOFTRESET + +typedef volatile unsigned int dv_reg; +typedef volatile unsigned int *dv_reg_p; + +#define DAVINCI_EMAC_VERSION2 + +#endif /* _AM3517_EMAC_H_ */