summaryrefslogtreecommitdiff
path: root/cpu/ppc4xx/4xx_enet.c
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/ppc4xx/4xx_enet.c')
-rw-r--r--cpu/ppc4xx/4xx_enet.c159
1 files changed, 157 insertions, 2 deletions
diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
index 8a38335..071ac0a 100644
--- a/cpu/ppc4xx/4xx_enet.c
+++ b/cpu/ppc4xx/4xx_enet.c
@@ -198,6 +198,7 @@
#define BI_PHYMODE_RMII 8
#endif
#endif
+#define BI_PHYMODE_SGMII 9
#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
@@ -216,6 +217,52 @@
#define MAL_RX_CHAN_MUL 1
#endif
+/*--------------------------------------------------------------------+
+ * Fixed PHY (PHY-less) support for Ethernet Ports.
+ *--------------------------------------------------------------------*/
+
+/*
+ * Some boards do not have a PHY for each ethernet port. These ports
+ * are known as Fixed PHY (or PHY-less) ports. For such ports, set
+ * the appropriate CONFIG_PHY_ADDR equal to CONFIG_FIXED_PHY and
+ * then define CFG_FIXED_PHY_PORTS to define what the speed and
+ * duplex should be for these ports in the board configuration
+ * file.
+ *
+ * For Example:
+ * #define CONFIG_FIXED_PHY 0xFFFFFFFF
+ *
+ * #define CONFIG_PHY_ADDR CONFIG_FIXED_PHY
+ * #define CONFIG_PHY1_ADDR 1
+ * #define CONFIG_PHY2_ADDR CONFIG_FIXED_PHY
+ * #define CONFIG_PHY3_ADDR 3
+ *
+ * #define CFG_FIXED_PHY_PORT(devnum,speed,duplex) \
+ * {devnum, speed, duplex},
+ *
+ * #define CFG_FIXED_PHY_PORTS \
+ * CFG_FIXED_PHY_PORT(0,1000,FULL) \
+ * CFG_FIXED_PHY_PORT(2,100,HALF)
+ */
+
+#ifndef CONFIG_FIXED_PHY
+#define CONFIG_FIXED_PHY 0xFFFFFFFF /* Fixed PHY (PHY-less) */
+#endif
+
+#ifndef CFG_FIXED_PHY_PORTS
+#define CFG_FIXED_PHY_PORTS /* default is an empty array */
+#endif
+
+struct fixed_phy_port {
+ unsigned int devnum; /* ethernet port */
+ unsigned int speed; /* specified speed 10,100 or 1000 */
+ unsigned int duplex; /* specified duplex FULL or HALF */
+};
+
+static const struct fixed_phy_port fixed_phy_port[] = {
+ CFG_FIXED_PHY_PORTS /* defined in board configuration file */
+};
+
/*-----------------------------------------------------------------------------+
* Global variables. TX and RX descriptors and buffers.
*-----------------------------------------------------------------------------*/
@@ -611,8 +658,17 @@ int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
#if defined(CONFIG_460EX)
mode = 9;
+ mfsdr(SDR0_ETH_CFG, eth_cfg);
+ if (((eth_cfg & SDR0_ETH_CFG_SGMII0_ENABLE) > 0) &&
+ ((eth_cfg & SDR0_ETH_CFG_SGMII1_ENABLE) > 0))
+ mode = 11; /* config SGMII */
#else
mode = 10;
+ mfsdr(SDR0_ETH_CFG, eth_cfg);
+ if (((eth_cfg & SDR0_ETH_CFG_SGMII0_ENABLE) > 0) &&
+ ((eth_cfg & SDR0_ETH_CFG_SGMII1_ENABLE) > 0) &&
+ ((eth_cfg & SDR0_ETH_CFG_SGMII2_ENABLE) > 0))
+ mode = 12; /* config SGMII */
#endif
/* TODO:
@@ -635,6 +691,8 @@ int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
/*
* Right now only 2*RGMII is supported. Please extend when needed.
* sr - 2008-02-19
+ * Add SGMII support.
+ * vg - 2008-07-28
*/
switch (mode) {
case 1:
@@ -761,6 +819,20 @@ int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
bis->bi_phymode[2] = BI_PHYMODE_RGMII;
bis->bi_phymode[3] = BI_PHYMODE_RGMII;
break;
+ case 11:
+ /* 2 SGMII - 460EX */
+ bis->bi_phymode[0] = BI_PHYMODE_SGMII;
+ bis->bi_phymode[1] = BI_PHYMODE_SGMII;
+ bis->bi_phymode[2] = BI_PHYMODE_NONE;
+ bis->bi_phymode[3] = BI_PHYMODE_NONE;
+ break;
+ case 12:
+ /* 3 SGMII - 460GT */
+ bis->bi_phymode[0] = BI_PHYMODE_SGMII;
+ bis->bi_phymode[1] = BI_PHYMODE_SGMII;
+ bis->bi_phymode[2] = BI_PHYMODE_SGMII;
+ bis->bi_phymode[3] = BI_PHYMODE_NONE;
+ break;
default:
break;
}
@@ -945,6 +1017,48 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
#endif /* defined(CONFIG_440GX) || defined(CONFIG_440SP) */
+#if defined(CONFIG_GPCS_PHY_ADDR) || defined(CONFIG_GPCS_PHY1_ADDR) || \
+ defined(CONFIG_GPCS_PHY2_ADDR) || defined(CONFIG_GPCS_PHY3_ADDR)
+ if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
+ /*
+ * In SGMII mode, GPCS access is needed for
+ * communication with the internal SGMII SerDes.
+ */
+ switch (devnum) {
+#if defined(CONFIG_GPCS_PHY_ADDR)
+ case 0:
+ reg = CONFIG_GPCS_PHY_ADDR;
+ break;
+#endif
+#if defined(CONFIG_GPCS_PHY1_ADDR)
+ case 1:
+ reg = CONFIG_GPCS_PHY1_ADDR;
+ break;
+#endif
+#if defined(CONFIG_GPCS_PHY2_ADDR)
+ case 2:
+ reg = CONFIG_GPCS_PHY2_ADDR;
+ break;
+#endif
+#if defined(CONFIG_GPCS_PHY3_ADDR)
+ case 3:
+ reg = CONFIG_GPCS_PHY3_ADDR;
+ break;
+#endif
+ }
+
+ mode_reg = in_be32((void *)EMAC_M1 + hw_p->hw_addr);
+ mode_reg |= EMAC_M1_MF_1000GPCS | EMAC_M1_IPPA_SET(reg);
+ out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
+
+ /* Configure GPCS interface to recommended setting for SGMII */
+ miiphy_reset(dev->name, reg);
+ miiphy_write(dev->name, reg, 0x04, 0x8120); /* AsymPause, FDX */
+ miiphy_write(dev->name, reg, 0x07, 0x2801); /* msg_pg, toggle */
+ miiphy_write(dev->name, reg, 0x00, 0x0140); /* 1Gbps, FDX */
+ }
+#endif /* defined(CONFIG_GPCS_PHY_ADDR) */
+
/* wait for PHY to complete auto negotiation */
reg_short = 0;
#ifndef CONFIG_CS8952_PHY
@@ -974,6 +1088,9 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
bis->bi_phynum[devnum] = reg;
+ if (reg == CONFIG_FIXED_PHY)
+ goto get_speed;
+
#if defined(CONFIG_PHY_RESET)
/*
* Reset the phy, only if its the first time through
@@ -986,6 +1103,27 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
miiphy_write (dev->name, reg, 0x09, 0x0e00);
miiphy_write (dev->name, reg, 0x04, 0x01e1);
#endif
+#if defined(CONFIG_M88E1112_PHY)
+ if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
+ /*
+ * Marvell 88E1112 PHY needs to have the SGMII MAC
+ * interace (page 2) properly configured to
+ * communicate with the 460EX/GT GPCS interface.
+ */
+
+ /* Set access to Page 2 */
+ miiphy_write(dev->name, reg, 0x16, 0x0002);
+
+ miiphy_write(dev->name, reg, 0x00, 0x0040); /* 1Gbps */
+ miiphy_read(dev->name, reg, 0x1a, &reg_short);
+ reg_short |= 0x8000; /* bypass Auto-Negotiation */
+ miiphy_write(dev->name, reg, 0x1a, reg_short);
+ miiphy_reset(dev->name, reg); /* reset MAC interface */
+
+ /* Reset access to Page 0 */
+ miiphy_write(dev->name, reg, 0x16, 0x0000);
+ }
+#endif /* defined(CONFIG_M88E1112_PHY) */
miiphy_reset (dev->name, reg);
#if defined(CONFIG_440GX) || \
@@ -1080,8 +1218,25 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
}
#endif /* #ifndef CONFIG_CS8952_PHY */
- speed = miiphy_speed (dev->name, reg);
- duplex = miiphy_duplex (dev->name, reg);
+get_speed:
+ if (reg == CONFIG_FIXED_PHY) {
+ for (i = 0; i < ARRAY_SIZE(fixed_phy_port); i++) {
+ if (devnum == fixed_phy_port[i].devnum) {
+ speed = fixed_phy_port[i].speed;
+ duplex = fixed_phy_port[i].duplex;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(fixed_phy_port)) {
+ printf("ERROR: PHY (%s) not configured correctly!\n",
+ dev->name);
+ return -1;
+ }
+ } else {
+ speed = miiphy_speed(dev->name, reg);
+ duplex = miiphy_duplex(dev->name, reg);
+ }
if (hw_p->print_speed) {
hw_p->print_speed = 0;
generated by cgit v1.1 at 2024-11-19 19:11:36 +0000