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authorSandeep Paulraj <s-paulraj@ti.com>2010-12-28 15:43:16 -0500
committerAlbert Aribaud <albert.aribaud@free.fr>2011-02-02 00:54:44 +0100
commit840f8923a076b02b983cf58c9466b5bdf5957133 (patch)
treefd8d296cbaa23d9b83957935fa89487cd95fe3e7
parent2a7d603f37de94cb8529c67a35e71906f3c66dce (diff)
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 <prakash.pm@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
-rw-r--r--arch/arm/cpu/arm926ejs/davinci/Makefile2
-rw-r--r--arch/arm/cpu/arm926ejs/davinci/et1011c.c55
-rw-r--r--arch/arm/include/asm/arch-davinci/emac_defs.h3
-rw-r--r--drivers/net/davinci_emac.c7
4 files changed, 66 insertions, 1 deletions
diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile
index 4eb1d876ea..3183e6a656 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 0000000000..da073457a3
--- /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 76493a138a..4a4ee04229 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 2067a54a88..c359f54f9d 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;