| /* |
| * 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]); |
| /* Initializing EPHY2 clock to RGMII mode */ |
| brdcfg9 &= ~(BRDCFG9_EPHY2_MASK); |
| brdcfg9 |= (BRDCFG9_EPHY2_VAL); |
| 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); |
| } |