[U-Boot] [PATCH] davinci: added Marvell 88E1111 PHY support
Brilliantov Kirill Vladimirovich
brilliantov at byterg.ru
Fri May 4 12:58:14 CEST 2012
added Marvell 88E1111 PHY support for Davinchi DM36x
tested on DM368ZCEF
Signed-off-by: Brilliantov Kirill Vladimirovich
<brilliantov at byterg.ru>
---
arch/arm/cpu/arm926ejs/davinci/Makefile | 1 +
arch/arm/cpu/arm926ejs/davinci/marvell.c | 232 +++++++++++++++++++++++++
arch/arm/include/asm/arch-davinci/emac_defs.h | 6 +
drivers/net/davinci_emac.c | 18 ++
4 files changed, 257 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/cpu/arm926ejs/davinci/marvell.c
diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile
index da7efac..687c58b 100644
--- a/arch/arm/cpu/arm926ejs/davinci/Makefile
+++ b/arch/arm/cpu/arm926ejs/davinci/Makefile
@@ -35,6 +35,7 @@ COBJS-$(CONFIG_SOC_DM644X) += dm644x.o
COBJS-$(CONFIG_SOC_DM646X) += dm646x.o
COBJS-$(CONFIG_SOC_DA850) += da850_pinmux.o
COBJS-$(CONFIG_DRIVER_TI_EMAC) += lxt972.o dp83848.o et1011c.o ksz8873.o
+COBJS-$(CONFIG_DRIVER_TI_EMAC) += marvell.o
ifdef CONFIG_SPL_BUILD
COBJS-y += spl.o
diff --git a/arch/arm/cpu/arm926ejs/davinci/marvell.c b/arch/arm/cpu/arm926ejs/davinci/marvell.c
new file mode 100644
index 0000000..00e896a
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/davinci/marvell.c
@@ -0,0 +1,232 @@
+/*
+ * Marvel 88E1111 Driver for TI DaVinci (TMS320DM635) based boards.
+ *
+ * Copyright (C) 2011 Brilliantov Kirill Vladimirovich <brilliantov at byterg.ru>
+ * References: 88E1111 Datasheet Integrated 10/100/1000
+ * Ultra Gigabit Ethernet Transceiver
+ * Doc. No. MV-S100649-00, Rev. F
+ * December, 3, 2004
+ * --------------------------------------------------------
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <net.h>
+#include <asm/arch/emac_defs.h>
+#include "../../../../../drivers/net/davinci_emac.h"
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+
+#ifdef CONFIG_CMD_NET
+
+#define DEBUG 0
+#define DBG(f, a...) \
+ do { \
+ if (DEBUG) \
+ printf("Marvell: " f "\n", ##a);\
+ } while (0)
+#define ERR(f, a...) printf("Marvell: " f "\n", ##a)
+
+#define EXTENDED_PHY_SPECIFIC_STATUS_REGISTER 27
+
+int m88e1111_is_phy_connected(int phy_addr)
+{
+ u_int16_t id1 = 0, id2 = 0;
+
+ DBG("starting %s", __func__);
+
+ if (!davinci_eth_phy_read(phy_addr, MII_PHYSID1, &id1)) {
+ ERR("can't read register %d (MII_PHYSID1)", MII_PHYSID1);
+ return (0);
+ }
+
+ if (!davinci_eth_phy_read(phy_addr, MII_PHYSID2, &id2)) {
+ ERR("can't read register %d (MII_PHYSID2)", MII_PHYSID2);
+ return (0);
+ }
+
+ DBG("ID1 %#x, ID2 %#x", id1, id2);
+
+ if ((id1 == 0x141) && ((id2 & 0xFFF0) == 0x0CC0))
+ return (1);
+
+ ERR("ID1 or ID2 not corrected");
+
+ return (0);
+}
+
+int m88e1111_get_link_speed(int phy_addr)
+{
+ u_int16_t val = 0;
+ volatile emac_regs *emac = (emac_regs *) EMAC_BASE_ADDR;
+
+ DBG("starting %s", __func__);
+
+ if (!davinci_eth_phy_read(phy_addr, MII_BMSR, &val)) {
+ ERR("can't read register %d (MII_BMSR)", MII_BMSR);
+ return (0);
+ }
+
+ if (!(val & BMSR_LSTATUS)) {
+ ERR("link down");
+ return (0);
+ }
+ DBG("link up");
+
+ if (!davinci_eth_phy_read(phy_addr, MII_BMCR, &val)) {
+ ERR("can't read register %d (MII_BMCR)", MII_BMCR);
+ return (0);
+ }
+
+ emac->MACCONTROL = EMAC_MACCONTROL_MIIEN_ENABLE;
+ if (val & BMCR_FULLDPLX)
+ emac->MACCONTROL |= EMAC_MACCONTROL_FULLDUPLEX_ENABLE;
+ DBG("set emac in %s duplex mode",
+ val & BMCR_FULLDPLX ? "full" : "half");
+
+ return (1);
+}
+
+int m88e1111_auto_negotiate(int phy_addr)
+{
+ u_int16_t val = 0;
+
+ DBG("starting %s", __func__);
+
+#if defined(CONFIG_SOC_DM365)
+ /* disable 1000Mb/s auto-negotination */
+ if (!davinci_eth_phy_read(phy_addr, MII_CTRL1000, &val)) {
+ ERR("can't read register %d (MII_CTRL1000)", MII_CTRL1000);
+ return (0);
+ }
+
+ if (!davinci_eth_phy_write(phy_addr, MII_CTRL1000,
+ val & (~(ADVERTISE_1000FULL | ADVERTISE_1000HALF)))) {
+ ERR("can't disable 1000Mb/s autonegotiation");
+ return (0);
+ }
+ DBG("1000Mb/s autonegotiation disabled");
+#endif
+
+ if (!davinci_eth_phy_read(phy_addr, MII_ADVERTISE, &val)) {
+ ERR("can't read register %d (MII_ADVERTISE)", MII_ADVERTISE);
+ return (0);
+ }
+
+ val |= (ADVERTISE_100FULL | ADVERTISE_100HALF |
+ ADVERTISE_10FULL | ADVERTISE_10HALF);
+ if (!davinci_eth_phy_write(phy_addr, MII_ADVERTISE, val)) {
+ ERR("can't set 100Mb/s autonegotiation");
+ return (0);
+ }
+
+ if (!davinci_eth_phy_read(phy_addr, MII_BMCR, &val)) {
+ ERR("can't read register %d (MII_BMCR)", MII_BMCR);
+ return (0);
+ }
+
+ davinci_eth_phy_write(phy_addr, MII_BMCR, val | BMCR_RESET);
+
+ /* TODO: very long time on auto-negotiation */
+ udelay(2000000);
+ if (!davinci_eth_phy_read(phy_addr, MII_BMSR, &val)) {
+ ERR("can't read register %d (MII_BMSR)", MII_BMSR);
+ return (0);
+ }
+
+ if (DEBUG) {
+ u_int8_t i;
+ u_int16_t v = 0;
+
+ for (i = 0; i < 32; i++) {
+ davinci_eth_phy_read(phy_addr, i, &v);
+ printf("Register %d: value %#x\n", i, v);
+ }
+ }
+
+ if (!(val & BMSR_ANEGCOMPLETE)) {
+ ERR("autonegotiation not completed");
+ return (0);
+ }
+ DBG("autonegotiation completed");
+
+ return (m88e1111_get_link_speed(phy_addr));
+}
+
+int m88e1111_init_phy(int phy_addr)
+{
+ int ret = 1;
+ u_int16_t val = 0;
+
+ DBG("starting %s", __func__);
+
+ if (!davinci_eth_phy_read(phy_addr, MII_BMCR, &val)) {
+ ERR("can't read register %d (MII_BMCR)", MII_BMCR);
+ return(0);
+ }
+
+ if (!davinci_eth_phy_write(phy_addr, MII_BMCR, val | BMCR_RESET)) {
+ ERR("can't set soft reset");
+ return(0);
+ }
+
+ udelay(20000);
+ if (!davinci_eth_phy_read(phy_addr, MII_BMCR, &val)) {
+ ERR("can't read register %d (MII_BMCR)", MII_BMCR);
+ return(0);
+ }
+ while (val & BMCR_RESET) {
+ udelay(10000);
+ davinci_eth_phy_read(phy_addr, MII_BMCR, &val);
+ }
+
+#if defined(CONFIG_SOC_DM365)
+ if (!davinci_eth_phy_read(phy_addr,
+ EXTENDED_PHY_SPECIFIC_STATUS_REGISTER, &val)) {
+ ERR("can't read register %d (Extended PHY Status)",
+ EXTENDED_PHY_SPECIFIC_STATUS_REGISTER);
+ return (0);
+ }
+ if (!davinci_eth_phy_write(phy_addr,
+ EXTENDED_PHY_SPECIFIC_STATUS_REGISTER,
+ val | 0xF)) {
+ ERR("can't set GMII to cooper mode");
+ return (0);
+ }
+ DBG("hardware configred set in GMII to cooper mode");
+
+ if (!m88e1111_auto_negotiate(phy_addr))
+ ret = m88e1111_auto_negotiate(phy_addr);
+#else
+ if (!m88e1111_get_link_speed(phy_addr))
+ ret = m88e1111_get_link_speed(phy_addr);
+#endif
+
+ return (ret);
+}
+
+
+
+#endif /* CONFIG_CMD_NET */
+
+#endif /* CONFIG_DRIVER_ETHER */
+
+/* vim: set noet sw=8 ts=8: */
diff --git a/arch/arm/include/asm/arch-davinci/emac_defs.h b/arch/arm/include/asm/arch-davinci/emac_defs.h
index 8a17de9..5f27600 100644
--- a/arch/arm/include/asm/arch-davinci/emac_defs.h
+++ b/arch/arm/include/asm/arch-davinci/emac_defs.h
@@ -105,4 +105,10 @@ int dp83848_auto_negotiate(int phy_addr);
#define PHY_ET1011C (0x282f013)
int et1011c_get_link_speed(int phy_addr);
+#define PHY_M88E1111 (0x1410CC2)
+int m88e1111_is_phy_connected(int phy_addr);
+int m88e1111_get_link_speed(int phy_addr);
+int m88e1111_init_phy(int phy_addr);
+int m88e1111_auto_negotiate(int phy_addr);
+
#endif /* _DM644X_EMAC_H_ */
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index fbd0f1b..fdca1ae 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -881,6 +881,16 @@ int davinci_emac_initialize(void)
phy[i].auto_negotiate = gen_auto_negotiate;
break;
#endif
+#ifdef PHY_M88E1111
+ case PHY_M88E1111:
+ sprintf(phy[i].name, "MARVELL88E1111 @ 0x%02x",
+ active_phy_addr[i]);
+ phy[i].init = m88e1111_init_phy;
+ phy[i].is_phy_connected = m88e1111_is_phy_connected;
+ phy[i].get_link_speed = m88e1111_get_link_speed;
+ phy[i].auto_negotiate = m88e1111_auto_negotiate;
+ break;
+#endif
default:
sprintf(phy[i].name, "GENERIC @ 0x%02x",
active_phy_addr[i]);
@@ -892,6 +902,14 @@ int davinci_emac_initialize(void)
debug("Ethernet PHY: %s\n", phy[i].name);
+#if defined(PHY_M88E1111) && defined(CONFIG_SOC_DM365)
+ /* I always get 1000Mb/s without this */
+ if (PHY_M88E1111 == phy_id) {
+ if (!phy[i].init(active_phy_addr[i]))
+ return(0);
+ }
+#endif
+
miiphy_register(phy[i].name, davinci_mii_phy_read,
davinci_mii_phy_write);
}
--
1.7.9
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