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-rw-r--r--board/freescale/t1040qds/eth.c492
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diff --git a/board/freescale/t1040qds/eth.c b/board/freescale/t1040qds/eth.c
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+++ b/board/freescale/t1040qds/eth.c
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+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * The RGMII PHYs are provided by the two on-board PHY connected to
+ * dTSEC instances 4 and 5. The SGMII PHYs are provided by one on-board
+ * PHY or by the standard four-port SGMII riser card (VSC).
+ */
+
+#include <common.h>
+#include <netdev.h>
+#include <asm/fsl_serdes.h>
+#include <asm/immap_85xx.h>
+#include <fm_eth.h>
+#include <fsl_mdio.h>
+#include <malloc.h>
+#include <asm/fsl_dtsec.h>
+
+#include "../common/fman.h"
+#include "../common/qixis.h"
+
+#include "t1040qds_qixis.h"
+
+#ifdef CONFIG_FMAN_ENET
+ /* - In T1040 there are only 8 SERDES lanes, spread across 2 SERDES banks.
+ * Bank 1 -> Lanes A, B, C, D
+ * Bank 2 -> Lanes E, F, G, H
+ */
+
+ /* Mapping of 8 SERDES lanes to T1040 QDS board slots. A value of '0' here
+ * means that the mapping must be determined dynamically, or that the lane
+ * maps to something other than a board slot.
+ */
+static u8 lane_to_slot[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/* On the Vitesse VSC8234XHG SGMII riser card there are 4 SGMII PHYs
+ * housed.
+ */
+static int riser_phy_addr[] = {
+ CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR,
+ CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR,
+ CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR,
+ CONFIG_SYS_FM1_DTSEC4_RISER_PHY_ADDR,
+};
+
+/* Slot2 does not have EMI connections */
+#define EMI_NONE 0xFFFFFFFF
+#define EMI1_RGMII0 0
+#define EMI1_RGMII1 1
+#define EMI1_SLOT1 2
+#define EMI1_SLOT3 3
+#define EMI1_SLOT4 4
+#define EMI1_SLOT5 5
+#define EMI1_SLOT6 6
+#define EMI1_SLOT7 7
+#define EMI2 8
+
+static int mdio_mux[NUM_FM_PORTS];
+
+static const char * const mdio_names[] = {
+ "T1040_QDS_MDIO0",
+ "T1040_QDS_MDIO1",
+ "T1040_QDS_MDIO2",
+ "T1040_QDS_MDIO3",
+ "T1040_QDS_MDIO4",
+ "T1040_QDS_MDIO5",
+ "T1040_QDS_MDIO6",
+ "T1040_QDS_MDIO7",
+};
+
+struct t1040_qds_mdio {
+ u8 muxval;
+ struct mii_dev *realbus;
+};
+
+static const char *t1040_qds_mdio_name_for_muxval(u8 muxval)
+{
+ return mdio_names[muxval];
+}
+
+struct mii_dev *mii_dev_for_muxval(u8 muxval)
+{
+ struct mii_dev *bus;
+ const char *name = t1040_qds_mdio_name_for_muxval(muxval);
+
+ if (!name) {
+ printf("No bus for muxval %x\n", muxval);
+ return NULL;
+ }
+
+ bus = miiphy_get_dev_by_name(name);
+
+ if (!bus) {
+ printf("No bus by name %s\n", name);
+ return NULL;
+ }
+
+ return bus;
+}
+
+static void t1040_qds_mux_mdio(u8 muxval)
+{
+ u8 brdcfg4;
+ if (muxval <= 7) {
+ brdcfg4 = QIXIS_READ(brdcfg[4]);
+ brdcfg4 &= ~BRDCFG4_EMISEL_MASK;
+ brdcfg4 |= (muxval << BRDCFG4_EMISEL_SHIFT);
+ QIXIS_WRITE(brdcfg[4], brdcfg4);
+ }
+}
+
+static int t1040_qds_mdio_read(struct mii_dev *bus, int addr, int devad,
+ int regnum)
+{
+ struct t1040_qds_mdio *priv = bus->priv;
+
+ t1040_qds_mux_mdio(priv->muxval);
+
+ return priv->realbus->read(priv->realbus, addr, devad, regnum);
+}
+
+static int t1040_qds_mdio_write(struct mii_dev *bus, int addr, int devad,
+ int regnum, u16 value)
+{
+ struct t1040_qds_mdio *priv = bus->priv;
+
+ t1040_qds_mux_mdio(priv->muxval);
+
+ return priv->realbus->write(priv->realbus, addr, devad, regnum, value);
+}
+
+static int t1040_qds_mdio_reset(struct mii_dev *bus)
+{
+ struct t1040_qds_mdio *priv = bus->priv;
+
+ return priv->realbus->reset(priv->realbus);
+}
+
+static int t1040_qds_mdio_init(char *realbusname, u8 muxval)
+{
+ struct t1040_qds_mdio *pmdio;
+ struct mii_dev *bus = mdio_alloc();
+
+ if (!bus) {
+ printf("Failed to allocate t1040_qds MDIO bus\n");
+ return -1;
+ }
+
+ pmdio = malloc(sizeof(*pmdio));
+ if (!pmdio) {
+ printf("Failed to allocate t1040_qds private data\n");
+ free(bus);
+ return -1;
+ }
+
+ bus->read = t1040_qds_mdio_read;
+ bus->write = t1040_qds_mdio_write;
+ bus->reset = t1040_qds_mdio_reset;
+ sprintf(bus->name, t1040_qds_mdio_name_for_muxval(muxval));
+
+ pmdio->realbus = miiphy_get_dev_by_name(realbusname);
+
+ if (!pmdio->realbus) {
+ printf("No bus with name %s\n", realbusname);
+ free(bus);
+ free(pmdio);
+ return -1;
+ }
+
+ pmdio->muxval = muxval;
+ bus->priv = pmdio;
+
+ return mdio_register(bus);
+}
+
+/*
+ * Initialize the lane_to_slot[] array.
+ *
+ * On the T1040QDS board the mapping is controlled by ?? register.
+ */
+static void initialize_lane_to_slot(void)
+{
+ ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+ int serdes1_prtcl = (in_be32(&gur->rcwsr[4]) &
+ FSL_CORENET2_RCWSR4_SRDS1_PRTCL)
+ >> FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
+
+ QIXIS_WRITE(cms[0], 0x07);
+
+ switch (serdes1_prtcl) {
+ case 0x60:
+ case 0x66:
+ case 0x67:
+ case 0x69:
+ lane_to_slot[1] = 7;
+ lane_to_slot[2] = 6;
+ lane_to_slot[3] = 5;
+ break;
+ case 0x86:
+ lane_to_slot[1] = 7;
+ lane_to_slot[2] = 7;
+ lane_to_slot[3] = 7;
+ break;
+ case 0x87:
+ lane_to_slot[1] = 7;
+ lane_to_slot[2] = 7;
+ lane_to_slot[3] = 7;
+ lane_to_slot[7] = 7;
+ break;
+ case 0x89:
+ lane_to_slot[1] = 7;
+ lane_to_slot[2] = 7;
+ lane_to_slot[3] = 7;
+ lane_to_slot[7] = 7;
+ break;
+ case 0x8d:
+ lane_to_slot[1] = 7;
+ lane_to_slot[2] = 7;
+ lane_to_slot[3] = 7;
+ lane_to_slot[5] = 3;
+ lane_to_slot[6] = 3;
+ lane_to_slot[7] = 3;
+ break;
+ case 0x8F:
+ case 0x85:
+ lane_to_slot[1] = 7;
+ lane_to_slot[2] = 6;
+ lane_to_slot[3] = 5;
+ lane_to_slot[6] = 3;
+ lane_to_slot[7] = 3;
+ break;
+ case 0xA5:
+ lane_to_slot[1] = 7;
+ lane_to_slot[6] = 3;
+ lane_to_slot[7] = 3;
+ break;
+ case 0xA7:
+ lane_to_slot[1] = 7;
+ lane_to_slot[7] = 7;
+ break;
+ case 0xAA:
+ lane_to_slot[1] = 7;
+ lane_to_slot[6] = 7;
+ lane_to_slot[7] = 7;
+ break;
+ case 0x40:
+ lane_to_slot[2] = 7;
+ lane_to_slot[3] = 7;
+ break;
+ default:
+ printf("qds: Fman: Unsupported SerDes Protocol 0x%02x\n",
+ serdes1_prtcl);
+ break;
+ }
+}
+
+/*
+ * Given the following ...
+ *
+ * 1) A pointer to an Fman Ethernet node (as identified by the 'compat'
+ * compatible string and 'addr' physical address)
+ *
+ * 2) An Fman port
+ *
+ * ... update the phy-handle property of the Ethernet node to point to the
+ * right PHY. This assumes that we already know the PHY for each port.
+ *
+ * The offset of the Fman Ethernet node is also passed in for convenience, but
+ * it is not used, and we recalculate the offset anyway.
+ *
+ * Note that what we call "Fman ports" (enum fm_port) is really an Fman MAC.
+ * Inside the Fman, "ports" are things that connect to MACs. We only call them
+ * ports in U-Boot because on previous Ethernet devices (e.g. Gianfar), MACs
+ * and ports are the same thing.
+ *
+ */
+void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
+ enum fm_port port, int offset)
+{
+ phy_interface_t intf = fm_info_get_enet_if(port);
+ char phy[16];
+
+ /* The RGMII PHY is identified by the MAC connected to it */
+ if (intf == PHY_INTERFACE_MODE_RGMII) {
+ sprintf(phy, "rgmii_phy%u", port == FM1_DTSEC4 ? 1 : 2);
+ fdt_set_phy_handle(fdt, compat, addr, phy);
+ }
+
+ /* The SGMII PHY is identified by the MAC connected to it */
+ if (intf == PHY_INTERFACE_MODE_SGMII) {
+ int lane = serdes_get_first_lane(FSL_SRDS_1, SGMII_FM1_DTSEC1
+ + port);
+ u8 slot;
+ if (lane < 0)
+ return;
+ slot = lane_to_slot[lane];
+ if (slot) {
+ /* Slot housing a SGMII riser card */
+ sprintf(phy, "phy_s%x_%02x", slot,
+ (fm_info_get_phy_address(port - FM1_DTSEC1)-
+ CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR + 1));
+ fdt_set_phy_handle(fdt, compat, addr, phy);
+ }
+ }
+}
+
+void fdt_fixup_board_enet(void *fdt)
+{
+ int i, lane, idx;
+
+ for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
+ idx = i - FM1_DTSEC1;
+ switch (fm_info_get_enet_if(i)) {
+ case PHY_INTERFACE_MODE_SGMII:
+ lane = serdes_get_first_lane(FSL_SRDS_1,
+ SGMII_FM1_DTSEC1 + idx);
+ if (lane < 0)
+ break;
+
+ switch (mdio_mux[i]) {
+ case EMI1_SLOT3:
+ fdt_status_okay_by_alias(fdt, "emi1_slot3");
+ break;
+ case EMI1_SLOT5:
+ fdt_status_okay_by_alias(fdt, "emi1_slot5");
+ break;
+ case EMI1_SLOT6:
+ fdt_status_okay_by_alias(fdt, "emi1_slot6");
+ break;
+ case EMI1_SLOT7:
+ fdt_status_okay_by_alias(fdt, "emi1_slot7");
+ break;
+ }
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ if (i == FM1_DTSEC4)
+ fdt_status_okay_by_alias(fdt, "emi1_rgmii0");
+
+ if (i == FM1_DTSEC5)
+ fdt_status_okay_by_alias(fdt, "emi1_rgmii1");
+ break;
+ default:
+ break;
+ }
+ }
+}
+#endif /* #ifdef CONFIG_FMAN_ENET */
+
+static void set_brdcfg9_for_gtx_clk(void)
+{
+ u8 brdcfg9;
+ brdcfg9 = QIXIS_READ(brdcfg[9]);
+ brdcfg9 |= (1 << 5);
+ QIXIS_WRITE(brdcfg[9], brdcfg9);
+}
+
+void t1040_handle_phy_interface_sgmii(int i)
+{
+ int lane, idx, slot;
+ idx = i - FM1_DTSEC1;
+ lane = serdes_get_first_lane(FSL_SRDS_1,
+ SGMII_FM1_DTSEC1 + idx);
+
+ if (lane < 0)
+ return;
+ slot = lane_to_slot[lane];
+
+ switch (slot) {
+ case 1:
+ mdio_mux[i] = EMI1_SLOT1;
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+ break;
+ case 3:
+ if (FM1_DTSEC4 == i)
+ fm_info_set_phy_address(i, riser_phy_addr[0]);
+ if (FM1_DTSEC5 == i)
+ fm_info_set_phy_address(i, riser_phy_addr[1]);
+
+ mdio_mux[i] = EMI1_SLOT3;
+
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+ break;
+ case 4:
+ mdio_mux[i] = EMI1_SLOT4;
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+ break;
+ case 5:
+ /* Slot housing a SGMII riser card? */
+ fm_info_set_phy_address(i, riser_phy_addr[0]);
+ mdio_mux[i] = EMI1_SLOT5;
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+ break;
+ case 6:
+ /* Slot housing a SGMII riser card? */
+ fm_info_set_phy_address(i, riser_phy_addr[0]);
+ mdio_mux[i] = EMI1_SLOT6;
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+ break;
+ case 7:
+ if (FM1_DTSEC1 == i)
+ fm_info_set_phy_address(i, riser_phy_addr[0]);
+ if (FM1_DTSEC2 == i)
+ fm_info_set_phy_address(i, riser_phy_addr[1]);
+ if (FM1_DTSEC3 == i)
+ fm_info_set_phy_address(i, riser_phy_addr[2]);
+
+ mdio_mux[i] = EMI1_SLOT7;
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+ break;
+ default:
+ break;
+ }
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+}
+void t1040_handle_phy_interface_rgmii(int i)
+{
+ fm_info_set_phy_address(i, i == FM1_DTSEC5 ?
+ CONFIG_SYS_FM1_DTSEC5_PHY_ADDR :
+ CONFIG_SYS_FM1_DTSEC4_PHY_ADDR);
+ mdio_mux[i] = (i == FM1_DTSEC5) ? EMI1_RGMII1 :
+ EMI1_RGMII0;
+ fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
+}
+
+int board_eth_init(bd_t *bis)
+{
+#ifdef CONFIG_FMAN_ENET
+ struct memac_mdio_info memac_mdio_info;
+ unsigned int i;
+
+ printf("Initializing Fman\n");
+ set_brdcfg9_for_gtx_clk();
+
+ initialize_lane_to_slot();
+
+ /* Initialize the mdio_mux array so we can recognize empty elements */
+ for (i = 0; i < NUM_FM_PORTS; i++)
+ mdio_mux[i] = EMI_NONE;
+
+ memac_mdio_info.regs =
+ (struct memac_mdio_controller *)CONFIG_SYS_FM1_DTSEC_MDIO_ADDR;
+ memac_mdio_info.name = DEFAULT_FM_MDIO_NAME;
+
+ /* Register the real 1G MDIO bus */
+ fm_memac_mdio_init(bis, &memac_mdio_info);
+
+ /* Register the muxing front-ends to the MDIO buses */
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII0);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII1);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT1);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT3);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT4);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT5);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT6);
+ t1040_qds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT7);
+
+ /*
+ * Program on board RGMII PHY addresses. If the SGMII Riser
+ * card used, we'll override the PHY address later. For any DTSEC that
+ * is RGMII, we'll also override its PHY address later. We assume that
+ * DTSEC4 and DTSEC5 are used for RGMII.
+ */
+ fm_info_set_phy_address(FM1_DTSEC4, CONFIG_SYS_FM1_DTSEC4_PHY_ADDR);
+ fm_info_set_phy_address(FM1_DTSEC5, CONFIG_SYS_FM1_DTSEC5_PHY_ADDR);
+
+ for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
+ switch (fm_info_get_enet_if(i)) {
+ case PHY_INTERFACE_MODE_QSGMII:
+ break;
+ case PHY_INTERFACE_MODE_SGMII:
+ t1040_handle_phy_interface_sgmii(i);
+ break;
+
+ case PHY_INTERFACE_MODE_RGMII:
+ /* Only DTSEC4 and DTSEC5 can be routed to RGMII */
+ t1040_handle_phy_interface_rgmii(i);
+ break;
+ default:
+ break;
+ }
+ }
+
+ cpu_eth_init(bis);
+#endif
+
+ return pci_eth_init(bis);
+}
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