From: Zhao Qiang <B45475@freescale.com>
Date: Wed, 4 Sep 2013 02:11:27 +0000 (+0800)
Subject: SGMII:fix PHY addresses for QSGMII Riser Card working in SGMII mode
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=ffee1dde3c4cb2721c56c78e0360affec1c23d3f;p=u-boot.git

SGMII:fix PHY addresses for QSGMII Riser Card working in SGMII mode

Fix PHY addresses for QSGMII Riser Card working in
SGMII mode on board P3041/P5020/P4080/P5040/B4860.

QSGMII Riser Card can work in SGMII mode, but
having the different PHY addresses.
So the following steps should be done:
	1. Confirm whether QSGMII Riser Card is used.
	2. If yes, set the proper PHY address.
Generally, the function is_qsgmii_riser_card() is
for step 1, and set_sgmii_phy() for step 2.

However, there are still some special situations,
take P5040 and B4860 as examples, the PHY addresses
need to be changed when serdes protocol is changed,
so it is necessary to confirm the protocol before
setting PHY addresses.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
---

diff --git a/board/freescale/b4860qds/b4860qds_qixis.h b/board/freescale/b4860qds/b4860qds_qixis.h
index 2fabbc7b32..272afc1ae0 100644
--- a/board/freescale/b4860qds/b4860qds_qixis.h
+++ b/board/freescale/b4860qds/b4860qds_qixis.h
@@ -21,4 +21,9 @@
 
 #define QIXIS_SRDS1CLK_122		0x5a
 #define QIXIS_SRDS1CLK_125		0x5e
+
+/* SGMII */
+#define PHY_BASE_ADDR		0x18
+#define PORT_NUM		0x04
+#define REGNUM			0x00
 #endif
diff --git a/board/freescale/b4860qds/eth_b4860qds.c b/board/freescale/b4860qds/eth_b4860qds.c
index dc4ef80fc8..a8fc845193 100644
--- a/board/freescale/b4860qds/eth_b4860qds.c
+++ b/board/freescale/b4860qds/eth_b4860qds.c
@@ -150,6 +150,8 @@ int board_eth_init(bd_t *bis)
 	struct memac_mdio_info tg_memac_mdio_info;
 	unsigned int i;
 	unsigned int  serdes1_prtcl, serdes2_prtcl;
+	int qsgmii;
+	struct mii_dev *bus;
 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	serdes1_prtcl = in_be32(&gur->rcwsr[4]) &
 		FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
@@ -281,6 +283,22 @@ int board_eth_init(bd_t *bis)
 		break;
 	}
 
+	/*set PHY address for QSGMII Riser Card on slot2*/
+	bus = miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME);
+	qsgmii = is_qsgmii_riser_card(bus, PHY_BASE_ADDR, PORT_NUM, REGNUM);
+
+	if (qsgmii) {
+		switch (serdes2_prtcl) {
+		case 0xb2:
+		case 0x8d:
+			fm_info_set_phy_address(FM1_DTSEC3, PHY_BASE_ADDR);
+			fm_info_set_phy_address(FM1_DTSEC4, PHY_BASE_ADDR + 1);
+			break;
+		default:
+			break;
+		}
+	}
+
 	for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
 		int idx = i - FM1_DTSEC1;
 
diff --git a/board/freescale/corenet_ds/eth_hydra.c b/board/freescale/corenet_ds/eth_hydra.c
index a594efcada..35825c4ae9 100644
--- a/board/freescale/corenet_ds/eth_hydra.c
+++ b/board/freescale/corenet_ds/eth_hydra.c
@@ -76,6 +76,8 @@
 
 #define BRDCFG2_REG_GPIO_SEL	0x20
 
+#define PHY_BASE_ADDR		0x00
+
 /*
  * BRDCFG1 mask and value for each MAC
  *
@@ -365,6 +367,7 @@ int board_eth_init(bd_t *bis)
 	struct tgec_mdio_info tgec_mdio_info;
 	unsigned int i, slot;
 	int lane;
+	struct mii_dev *bus;
 
 	printf("Initializing Fman\n");
 
@@ -470,6 +473,9 @@ int board_eth_init(bd_t *bis)
 		}
 	}
 
+	bus = miiphy_get_dev_by_name("HYDRA_SGMII_MDIO");
+	set_sgmii_phy(bus, FM1_DTSEC1, CONFIG_SYS_NUM_FM1_DTSEC, PHY_BASE_ADDR);
+
 	/*
 	 * For 10G, we only support one XAUI card per Fman.  If present, then we
 	 * force its routing and never touch those bits again, which removes the
diff --git a/board/freescale/corenet_ds/eth_p4080.c b/board/freescale/corenet_ds/eth_p4080.c
index 597d0cbf2e..e5beb55177 100644
--- a/board/freescale/corenet_ds/eth_p4080.c
+++ b/board/freescale/corenet_ds/eth_p4080.c
@@ -37,6 +37,9 @@
 #define EMI1_MASK	0xc0000000
 #define EMI2_MASK	0x30000000
 
+#define PHY_BASE_ADDR	0x00
+#define PHY_BASE_ADDR_SLOT5	0x10
+
 static int mdio_mux[NUM_FM_PORTS];
 
 static char *mdio_names[16] = {
@@ -290,6 +293,7 @@ int board_eth_init(bd_t *bis)
 	int i;
 	struct fsl_pq_mdio_info dtsec_mdio_info;
 	struct tgec_mdio_info tgec_mdio_info;
+	struct mii_dev *bus;
 
 	/* Initialize the mdio_mux array so we can recognize empty elements */
 	for (i = 0; i < NUM_FM_PORTS; i++)
@@ -370,6 +374,9 @@ int board_eth_init(bd_t *bis)
 			break;
 		}
 	}
+	bus = mii_dev_for_muxval(EMI1_SLOT5);
+	set_sgmii_phy(bus, FM1_DTSEC1,
+		      CONFIG_SYS_NUM_FM1_DTSEC, PHY_BASE_ADDR_SLOT5);
 
 	for (i = FM1_10GEC1; i < FM1_10GEC1 + CONFIG_SYS_NUM_FM1_10GEC; i++) {
 		int idx = i - FM1_10GEC1, lane, slot;
@@ -435,6 +442,11 @@ int board_eth_init(bd_t *bis)
 		}
 	}
 
+	bus = mii_dev_for_muxval(EMI1_SLOT3);
+	set_sgmii_phy(bus, FM2_DTSEC1, CONFIG_SYS_NUM_FM2_DTSEC, PHY_BASE_ADDR);
+	bus = mii_dev_for_muxval(EMI1_SLOT4);
+	set_sgmii_phy(bus, FM2_DTSEC1, CONFIG_SYS_NUM_FM2_DTSEC, PHY_BASE_ADDR);
+
 	for (i = FM2_10GEC1; i < FM2_10GEC1 + CONFIG_SYS_NUM_FM2_10GEC; i++) {
 		int idx = i - FM2_10GEC1, lane, slot;
 		switch (fm_info_get_enet_if(i)) {
diff --git a/board/freescale/corenet_ds/eth_superhydra.c b/board/freescale/corenet_ds/eth_superhydra.c
index 91ac1962ed..ad1bffd74b 100644
--- a/board/freescale/corenet_ds/eth_superhydra.c
+++ b/board/freescale/corenet_ds/eth_superhydra.c
@@ -77,6 +77,12 @@
 
 #define BRDCFG2_REG_GPIO_SEL	0x20
 
+/* SGMII */
+#define PHY_BASE_ADDR		0x00
+#define REGNUM			0x00
+#define PORT_NUM_FM1		0x04
+#define PORT_NUM_FM2		0x02
+
 /*
  * BRDCFG1 mask and value for each MAC
  *
@@ -415,6 +421,9 @@ int board_eth_init(bd_t *bis)
 	struct tgec_mdio_info tgec_mdio_info;
 	unsigned int i, slot;
 	int lane;
+	struct mii_dev *bus;
+	int qsgmii;
+	int phy_real_addr;
 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	int srds_prtcl = (in_be32(&gur->rcwsr[4]) &
 				FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26;
@@ -575,6 +584,42 @@ int board_eth_init(bd_t *bis)
 		}
 	}
 
+	bus = miiphy_get_dev_by_name("SUPER_HYDRA_FM1_SGMII_MDIO");
+	qsgmii = is_qsgmii_riser_card(bus, PHY_BASE_ADDR, PORT_NUM_FM1, REGNUM);
+
+	if (qsgmii) {
+		for (i = FM1_DTSEC1; i < FM1_DTSEC1 + PORT_NUM_FM1; i++) {
+			if (fm_info_get_enet_if(i) ==
+					PHY_INTERFACE_MODE_SGMII) {
+				phy_real_addr = PHY_BASE_ADDR + i - FM1_DTSEC1;
+				fm_info_set_phy_address(i, phy_real_addr);
+			}
+		}
+		switch (srds_prtcl) {
+		case 0x00:
+		case 0x03:
+		case 0x04:
+		case 0x06:
+		case 0x11:
+		case 0x2a:
+		case 0x34:
+		case 0x36:
+			fm_info_set_phy_address(FM1_DTSEC3, PHY_BASE_ADDR + 2);
+			fm_info_set_phy_address(FM1_DTSEC4, PHY_BASE_ADDR + 3);
+			break;
+		case 0x01:
+		case 0x02:
+		case 0x05:
+		case 0x07:
+		case 0x35:
+			fm_info_set_phy_address(FM1_DTSEC3, PHY_BASE_ADDR + 0);
+			fm_info_set_phy_address(FM1_DTSEC4, PHY_BASE_ADDR + 1);
+			break;
+		default:
+			break;
+		}
+	}
+
 	/*
 	 * For 10G, we only support one XAUI card per Fman.  If present, then we
 	 * force its routing and never touch those bits again, which removes the
@@ -686,6 +731,11 @@ int board_eth_init(bd_t *bis)
 		}
 	}
 
+	bus = miiphy_get_dev_by_name("SUPER_HYDRA_FM2_SGMII_MDIO");
+	set_sgmii_phy(bus, FM2_DTSEC3, PORT_NUM_FM2, PHY_BASE_ADDR);
+	bus = miiphy_get_dev_by_name("SUPER_HYDRA_FM3_SGMII_MDIO");
+	set_sgmii_phy(bus, FM2_DTSEC1, PORT_NUM_FM2, PHY_BASE_ADDR);
+
 	/*
 	 * For 10G, we only support one XAUI card per Fman.  If present, then we
 	 * force its routing and never touch those bits again, which removes the
diff --git a/drivers/net/fm/fm.h b/drivers/net/fm/fm.h
index 38fdbcdc42..5f197a9829 100644
--- a/drivers/net/fm/fm.h
+++ b/drivers/net/fm/fm.h
@@ -21,6 +21,7 @@
 #define TX_PORT_1G_BASE		0x28
 #define MAX_NUM_TX_PORT_1G	CONFIG_SYS_NUM_FM1_DTSEC
 #define TX_PORT_10G_BASE	0x30
+#define MIIM_TIMEOUT    0xFFFF
 
 struct fm_muram {
 	u32 base;
diff --git a/drivers/net/fm/init.c b/drivers/net/fm/init.c
index 14fa2ce59c..2d13145f14 100644
--- a/drivers/net/fm/init.c
+++ b/drivers/net/fm/init.c
@@ -274,3 +274,47 @@ void fdt_fixup_fman_ethernet(void *blob)
 	}
 #endif
 }
+
+/*QSGMII Riser Card can work in SGMII mode, but the PHY address is different.
+ *This function scans which Riser Card being used(QSGMII or SGMII Riser Card),
+ *then set the correct PHY address
+ */
+void set_sgmii_phy(struct mii_dev *bus, enum fm_port base_port,
+		unsigned int port_num, int phy_base_addr)
+{
+	unsigned int regnum = 0;
+	int qsgmii;
+	int i;
+	int phy_real_addr;
+
+	qsgmii = is_qsgmii_riser_card(bus, phy_base_addr, port_num, regnum);
+
+	if (!qsgmii)
+		return;
+
+	for (i = base_port; i < base_port + port_num; i++) {
+		if (fm_info_get_enet_if(i) == PHY_INTERFACE_MODE_SGMII) {
+			phy_real_addr = phy_base_addr + i - base_port;
+			fm_info_set_phy_address(i, phy_real_addr);
+		}
+	}
+}
+
+/*to check whether qsgmii riser card is used*/
+int is_qsgmii_riser_card(struct mii_dev *bus, int phy_base_addr,
+		unsigned int port_num, unsigned regnum)
+{
+	int i;
+	int val;
+
+	if (!bus)
+		return 0;
+
+	for (i = phy_base_addr; i < phy_base_addr + port_num; i++) {
+		val = bus->read(bus, i, MDIO_DEVAD_NONE, regnum);
+		if (val != MIIM_TIMEOUT)
+			return 1;
+	}
+
+	return 0;
+}
diff --git a/include/fm_eth.h b/include/fm_eth.h
index 90562dc9f0..114bb8cf25 100644
--- a/include/fm_eth.h
+++ b/include/fm_eth.h
@@ -149,5 +149,9 @@ void fm_info_set_phy_address(enum fm_port port, int address);
 int fm_info_get_phy_address(enum fm_port port);
 void fm_info_set_mdio(enum fm_port port, struct mii_dev *bus);
 void fm_disable_port(enum fm_port port);
+void set_sgmii_phy(struct mii_dev *bus, enum fm_port base_port,
+		unsigned int port_num, int phy_base_addr);
+int is_qsgmii_riser_card(struct mii_dev *bus, int phy_base_addr,
+		unsigned int port_num, unsigned regnum);
 
 #endif