From 4b9b9e7c665bfcff43bc720b579b6b03a5078736 Mon Sep 17 00:00:00 2001 From: Sandeep Paulraj Date: Tue, 28 Dec 2010 14:37:33 -0500 Subject: DaVinci EMAC: Fix davinci_eth_gigabit_enable Enabling the gigabit was overwriting the previous configuration by setting up only GIGAFORCE and GIG bits of MAC control register. Modified to retain previous configuration while gigabit enabling. Signed-off-by: Prakash PM Signed-off-by: Sandeep Paulraj --- drivers/net/davinci_emac.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/net/davinci_emac.c') diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 56cd2aaf4..2642a5aaf 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -322,9 +322,10 @@ static void __attribute__((unused)) davinci_eth_gigabit_enable(void) * Check if link detected is giga-bit * If Gigabit mode detected, enable gigbit in MAC */ - writel(EMAC_MACCONTROL_GIGFORCE | - EMAC_MACCONTROL_GIGABIT_ENABLE, - &adap_emac->MACCONTROL); + writel(readl(&adap_emac->MACCONTROL) | + EMAC_MACCONTROL_GIGFORCE | + EMAC_MACCONTROL_GIGABIT_ENABLE, + &adap_emac->MACCONTROL); } } } -- cgit v1.2.3-70-g09d2 From 2a7d603f37de94cb8529c67a35e71906f3c66dce Mon Sep 17 00:00:00 2001 From: Sandeep Paulraj Date: Tue, 28 Dec 2010 14:42:27 -0500 Subject: DaVinci EMAC: Add name to Ethernet device Adds "DaVinci-EMAC" as the name of the device so that it gets printed as "Using DaVinci-EMAC device" during network access (dhcp, tftp) instead of empty name in "Using" statement.This name also gets reflected in 'ethact' env variable. Signed-off-by: Hemant Pedanekar Signed-off-by: Sandeep Paulraj --- drivers/net/davinci_emac.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/davinci_emac.c') diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 2642a5aaf..2067a54a8 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -667,6 +667,7 @@ int davinci_emac_initialize(void) return -1; memset(dev, 0, sizeof *dev); + sprintf(dev->name, "DaVinci-EMAC"); dev->iobase = 0; dev->init = davinci_eth_open; -- cgit v1.2.3-70-g09d2 From 840f8923a076b02b983cf58c9466b5bdf5957133 Mon Sep 17 00:00:00 2001 From: Sandeep Paulraj Date: Tue, 28 Dec 2010 15:43:16 -0500 Subject: DaVinci DM6467: Added ET1011C (LSI) PHY support Added arch/arm/cpu/arm926ejs/davinci/et1011c.c for handling ET1011C gigabit phy. which overrides get_link_speed function from default implementation. This enables output of 125 MHz reference clock on SYS_CLK pin. Signed-off-by: Prakash PM Signed-off-by: Sandeep Paulraj --- arch/arm/cpu/arm926ejs/davinci/Makefile | 2 +- arch/arm/cpu/arm926ejs/davinci/et1011c.c | 55 +++++++++++++++++++++++++++ arch/arm/include/asm/arch-davinci/emac_defs.h | 3 ++ drivers/net/davinci_emac.c | 7 ++++ 4 files changed, 66 insertions(+), 1 deletion(-) create mode 100644 arch/arm/cpu/arm926ejs/davinci/et1011c.c (limited to 'drivers/net/davinci_emac.c') diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile index 4eb1d876e..3183e6a65 100644 --- a/arch/arm/cpu/arm926ejs/davinci/Makefile +++ b/arch/arm/cpu/arm926ejs/davinci/Makefile @@ -32,7 +32,7 @@ COBJS-$(CONFIG_SOC_DM355) += dm355.o COBJS-$(CONFIG_SOC_DM365) += dm365.o COBJS-$(CONFIG_SOC_DM644X) += dm644x.o COBJS-$(CONFIG_SOC_DM646X) += dm646x.o -COBJS-$(CONFIG_DRIVER_TI_EMAC) += lxt972.o dp83848.o +COBJS-$(CONFIG_DRIVER_TI_EMAC) += lxt972.o dp83848.o et1011c.o SOBJS = reset.o diff --git a/arch/arm/cpu/arm926ejs/davinci/et1011c.c b/arch/arm/cpu/arm926ejs/davinci/et1011c.c new file mode 100644 index 000000000..da073457a --- /dev/null +++ b/arch/arm/cpu/arm926ejs/davinci/et1011c.c @@ -0,0 +1,55 @@ +/* + * LSI ET1011C PHY Driver for TI DaVinci(TMS320DM6467) board. + * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * + * 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. + */ + +#include +#include +#include +#include + +#ifdef CONFIG_DRIVER_TI_EMAC + +#ifdef CONFIG_CMD_NET + +/* LSI PHYSICAL LAYER TRANSCEIVER ET1011C */ + +#define MII_PHY_CONFIG_REG 22 + +/* PHY Config bits */ +#define PHY_SYS_CLK_EN (1 << 4) + +int et1011c_get_link_speed(int phy_addr) +{ + u_int16_t data; + + if (davinci_eth_phy_read(phy_addr, MII_STATUS_REG, &data) && (data & 0x04)) { + davinci_eth_phy_read(EMAC_MDIO_PHY_NUM, + MII_PHY_CONFIG_REG, &data); + /* Enable 125MHz clock sourced from PHY */ + davinci_eth_phy_write(EMAC_MDIO_PHY_NUM, + MII_PHY_CONFIG_REG, + data | PHY_SYS_CLK_EN); + return (1); + } + return (0); +} + +#endif /* CONFIG_CMD_NET */ + +#endif /* CONFIG_DRIVER_ETHER */ diff --git a/arch/arm/include/asm/arch-davinci/emac_defs.h b/arch/arm/include/asm/arch-davinci/emac_defs.h index 76493a138..4a4ee0422 100644 --- a/arch/arm/include/asm/arch-davinci/emac_defs.h +++ b/arch/arm/include/asm/arch-davinci/emac_defs.h @@ -389,4 +389,7 @@ int dp83848_get_link_speed(int phy_addr); int dp83848_init_phy(int phy_addr); int dp83848_auto_negotiate(int phy_addr); +#define PHY_ET1011C (0x282f013) +int et1011c_get_link_speed(int phy_addr); + #endif /* _DM644X_EMAC_H_ */ diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 2067a54a8..c359f54f9 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -725,6 +725,13 @@ int davinci_emac_initialize(void) phy.get_link_speed = dp83848_get_link_speed; phy.auto_negotiate = dp83848_auto_negotiate; break; + case PHY_ET1011C: + sprintf(phy.name, "ET1011C @ 0x%02x", active_phy_addr); + phy.init = gen_init_phy; + phy.is_phy_connected = gen_is_phy_connected; + phy.get_link_speed = et1011c_get_link_speed; + phy.auto_negotiate = gen_auto_negotiate; + break; default: sprintf(phy.name, "GENERIC @ 0x%02x", active_phy_addr); phy.init = gen_init_phy; -- cgit v1.2.3-70-g09d2