From patchwork Fri Jul 17 08:47:10 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rajashekhara, Sudhakar" X-Patchwork-Id: 35998 Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n6H9crTa025947 for ; Fri, 17 Jul 2009 09:38:53 GMT Received: from dlep35.itg.ti.com ([157.170.170.118]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id n6H9avRP011300; Fri, 17 Jul 2009 04:37:02 -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 n6H9auBv011075; Fri, 17 Jul 2009 04:36:56 -0500 (CDT) Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id A419680627; Fri, 17 Jul 2009 04:36:54 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp53.itg.ti.com (dflp53.itg.ti.com [128.247.5.6]) by linux.omap.com (Postfix) with ESMTP id 38A0A80626 for ; Fri, 17 Jul 2009 04:36:54 -0500 (CDT) Received: from tidmzi-ftp.india.ext.ti.com (localhost [127.0.0.1]) by dflp53.itg.ti.com (8.13.8/8.13.8) with SMTP id n6H9aqti020750 for ; Fri, 17 Jul 2009 04:36:53 -0500 (CDT) Received: from symphonyindia.ti.com (symphony-ftp [192.168.247.11]) by tidmzi-ftp.india.ext.ti.com (Postfix) with SMTP id 53E6C38878 for ; Fri, 17 Jul 2009 15:04:05 +0530 (IST) Received: from localhost.localdomain ([192.168.247.76]) by symphonyindia.ti.com (8.12.10/8.12.10) with ESMTP id n6H9WMAi006819; Fri, 17 Jul 2009 15:02:22 +0530 From: Sudhakar Rajashekhara To: davinci-linux-open-source@linux.davincidsp.com Date: Fri, 17 Jul 2009 04:47:10 -0400 Message-Id: <1247820430-24995-1-git-send-email-sudhakar.raj@ti.com> X-Mailer: git-send-email 1.5.6 Cc: Subject: [PATCH] davinci: Add EMAC support for da850/omap-l138 X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.4 Precedence: list List-Id: davinci-linux-open-source.linux.davincidsp.com List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: davinci-linux-open-source-bounces@linux.davincidsp.com Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com Ethernet Media Access Controller (EMAC) on da850/omap-l138 supports 10/100 Mbps operation. It also supports Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) to physical layer (PHY). Phy which supports MII is present on the DA850/OMAP-L138 base board and Phy supporting RMII is present on the UI card. This patch adds support only for the MII Phy. Support for RMII Phy will be added later. Signed-off-by: Sudhakar Rajashekhara --- This patch depends on the following two patches which I have submitted earlier: [PATCH v3 1/2] davinci: Add base DA850/OMAP-L138 SoC support [PATCH v3 2/2] davinci: Add support for DA850/OMAP-L138 EVM board This patch has been tested for NFS boot on DA850/OMAP-L138 EVM. arch/arm/mach-davinci/board-da850-evm.c | 18 ++++++++++++++++ arch/arm/mach-davinci/da850.c | 31 ++++++++++++++++++++++++++++ arch/arm/mach-davinci/include/mach/da8xx.h | 1 + arch/arm/mach-davinci/include/mach/mux.h | 17 +++++++++++++++ 4 files changed, 67 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index eaa1fc1..d989346 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -26,6 +26,9 @@ #include #include +#define DA850_EVM_PHY_MASK 0x1 +#define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */ + static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = { .bus_freq = 100, /* kHz */ .bus_delay = 0, /* usec */ @@ -37,6 +40,7 @@ static struct davinci_uart_config da850_evm_uart_config __initdata = { static __init void da850_evm_init(void) { + struct davinci_soc_info *soc_info = &davinci_soc_info; int ret; ret = da8xx_register_edma(); @@ -54,6 +58,20 @@ static __init void da850_evm_init(void) pr_warning("da850_evm_init: i2c0 registration failed: %d\n", ret); + soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK; + soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY; + soc_info->emac_pdata->rmii_en = 0; + + ret = da8xx_pinmux_setup(da850_cpgmac_pins); + if (ret) + pr_warning("da850_evm_init: cpgmac mux setup failed: %d\n", + ret); + + ret = da8xx_register_emac(); + if (ret) + pr_warning("da850_evm_init: emac registration failed: %d\n", + ret); + ret = da8xx_register_watchdog(); if (ret) pr_warning("da830_evm_init: watchdog registration failed: %d\n", diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 332cf7f..4a43ae2 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -283,6 +283,12 @@ static struct clk rmii_clk = { .parent = &pll0_sysclk7, }; +static struct clk emac_clk = { + .name = "emac", + .parent = &pll0_sysclk4, + .lpsc = DA8XX_LPSC1_CPGMAC, +}; + static struct davinci_clk da850_clks[] = { CLK(NULL, "ref", &ref_clk), CLK(NULL, "pll0", &pll0_clk), @@ -319,6 +325,7 @@ static struct davinci_clk da850_clks[] = { CLK(NULL, "emif3", &emif3_clk), CLK(NULL, "arm", &arm_clk), CLK(NULL, "rmii", &rmii_clk), + CLK("davinci_emac.1", NULL, &emac_clk), CLK(NULL, NULL, NULL), }; @@ -347,6 +354,22 @@ static const struct mux_config da850_pins[] = { /* I2C0 function */ MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false) MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false) + /* EMAC function */ + MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false) + MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false) + MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false) + MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false) + MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false) + MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false) + MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false) + MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false) + MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false) + MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false) + MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false) + MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false) + MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false) + MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false) + MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false) #endif }; @@ -375,6 +398,14 @@ const short da850_i2c1_pins[] __initdata = { -1 }; +const short da850_cpgmac_pins[] __initdata = { + DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3, + DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER, + DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3, + DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, + -1 +}; + /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */ static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = { [IRQ_DA8XX_COMMTX] = 7, diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 594f988..a8cb570 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -99,6 +99,7 @@ extern const short da850_uart1_pins[]; extern const short da850_uart2_pins[]; extern const short da850_i2c0_pins[]; extern const short da850_i2c1_pins[]; +extern const short da850_cpgmac_pins[]; int da8xx_pinmux_setup(const short pins[]); diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h index 3349fa5..368fca6 100644 --- a/arch/arm/mach-davinci/include/mach/mux.h +++ b/arch/arm/mach-davinci/include/mach/mux.h @@ -730,6 +730,23 @@ enum davinci_da850_index { /* I2C0 function */ DA850_I2C0_SDA, DA850_I2C0_SCL, + + /* EMAC function */ + DA850_MII_TXEN, + DA850_MII_TXCLK, + DA850_MII_COL, + DA850_MII_TXD_3, + DA850_MII_TXD_2, + DA850_MII_TXD_1, + DA850_MII_TXD_0, + DA850_MII_RXER, + DA850_MII_CRS, + DA850_MII_RXCLK, + DA850_MII_RXDV, + DA850_MII_RXD_3, + DA850_MII_RXD_2, + DA850_MII_RXD_1, + DA850_MII_RXD_0, }; #ifdef CONFIG_DAVINCI_MUX