From: Sandeep Paulraj s-paulraj@ti.com
Added a driver 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 prakash.pm@ti.com Signed-off-by: Sandeep Paulraj s-paulraj@ti.com --- This is another patch that has been in a TI tree for a very long time. Sending the patch to the list to sync up with the u-boot-davinci tree 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 deletions(-) create mode 100644 arch/arm/cpu/arm926ejs/davinci/et1011c.c
diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile index 4eb1d87..3183e6a 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 0000000..da07345 --- /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 <common.h> +#include <net.h> +#include <miiphy.h> +#include <asm/arch/emac_defs.h> + +#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 76493a1..4a4ee04 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 9390480..90da53c 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;