| /* |
| * (C) Copyright 2001 |
| * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| /* |
| * MII Utilities |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <miiphy.h> |
| |
| typedef struct _MII_reg_desc_t { |
| ushort regno; |
| char * name; |
| } MII_reg_desc_t; |
| |
| static const MII_reg_desc_t reg_0_5_desc_tbl[] = { |
| { MII_BMCR, "PHY control register" }, |
| { MII_BMSR, "PHY status register" }, |
| { MII_PHYSID1, "PHY ID 1 register" }, |
| { MII_PHYSID2, "PHY ID 2 register" }, |
| { MII_ADVERTISE, "Autonegotiation advertisement register" }, |
| { MII_LPA, "Autonegotiation partner abilities register" }, |
| }; |
| |
| typedef struct _MII_field_desc_t { |
| ushort hi; |
| ushort lo; |
| ushort mask; |
| char * name; |
| } MII_field_desc_t; |
| |
| static const MII_field_desc_t reg_0_desc_tbl[] = { |
| { 15, 15, 0x01, "reset" }, |
| { 14, 14, 0x01, "loopback" }, |
| { 13, 6, 0x81, "speed selection" }, /* special */ |
| { 12, 12, 0x01, "A/N enable" }, |
| { 11, 11, 0x01, "power-down" }, |
| { 10, 10, 0x01, "isolate" }, |
| { 9, 9, 0x01, "restart A/N" }, |
| { 8, 8, 0x01, "duplex" }, /* special */ |
| { 7, 7, 0x01, "collision test enable" }, |
| { 5, 0, 0x3f, "(reserved)" } |
| }; |
| |
| static const MII_field_desc_t reg_1_desc_tbl[] = { |
| { 15, 15, 0x01, "100BASE-T4 able" }, |
| { 14, 14, 0x01, "100BASE-X full duplex able" }, |
| { 13, 13, 0x01, "100BASE-X half duplex able" }, |
| { 12, 12, 0x01, "10 Mbps full duplex able" }, |
| { 11, 11, 0x01, "10 Mbps half duplex able" }, |
| { 10, 10, 0x01, "100BASE-T2 full duplex able" }, |
| { 9, 9, 0x01, "100BASE-T2 half duplex able" }, |
| { 8, 8, 0x01, "extended status" }, |
| { 7, 7, 0x01, "(reserved)" }, |
| { 6, 6, 0x01, "MF preamble suppression" }, |
| { 5, 5, 0x01, "A/N complete" }, |
| { 4, 4, 0x01, "remote fault" }, |
| { 3, 3, 0x01, "A/N able" }, |
| { 2, 2, 0x01, "link status" }, |
| { 1, 1, 0x01, "jabber detect" }, |
| { 0, 0, 0x01, "extended capabilities" }, |
| }; |
| |
| static const MII_field_desc_t reg_2_desc_tbl[] = { |
| { 15, 0, 0xffff, "OUI portion" }, |
| }; |
| |
| static const MII_field_desc_t reg_3_desc_tbl[] = { |
| { 15, 10, 0x3f, "OUI portion" }, |
| { 9, 4, 0x3f, "manufacturer part number" }, |
| { 3, 0, 0x0f, "manufacturer rev. number" }, |
| }; |
| |
| static const MII_field_desc_t reg_4_desc_tbl[] = { |
| { 15, 15, 0x01, "next page able" }, |
| { 14, 14, 0x01, "(reserved)" }, |
| { 13, 13, 0x01, "remote fault" }, |
| { 12, 12, 0x01, "(reserved)" }, |
| { 11, 11, 0x01, "asymmetric pause" }, |
| { 10, 10, 0x01, "pause enable" }, |
| { 9, 9, 0x01, "100BASE-T4 able" }, |
| { 8, 8, 0x01, "100BASE-TX full duplex able" }, |
| { 7, 7, 0x01, "100BASE-TX able" }, |
| { 6, 6, 0x01, "10BASE-T full duplex able" }, |
| { 5, 5, 0x01, "10BASE-T able" }, |
| { 4, 0, 0x1f, "xxx to do" }, |
| }; |
| |
| static const MII_field_desc_t reg_5_desc_tbl[] = { |
| { 15, 15, 0x01, "next page able" }, |
| { 14, 14, 0x01, "acknowledge" }, |
| { 13, 13, 0x01, "remote fault" }, |
| { 12, 12, 0x01, "(reserved)" }, |
| { 11, 11, 0x01, "asymmetric pause able" }, |
| { 10, 10, 0x01, "pause able" }, |
| { 9, 9, 0x01, "100BASE-T4 able" }, |
| { 8, 8, 0x01, "100BASE-X full duplex able" }, |
| { 7, 7, 0x01, "100BASE-TX able" }, |
| { 6, 6, 0x01, "10BASE-T full duplex able" }, |
| { 5, 5, 0x01, "10BASE-T able" }, |
| { 4, 0, 0x1f, "xxx to do" }, |
| }; |
| typedef struct _MII_field_desc_and_len_t { |
| const MII_field_desc_t *pdesc; |
| ushort len; |
| } MII_field_desc_and_len_t; |
| |
| static const MII_field_desc_and_len_t desc_and_len_tbl[] = { |
| { reg_0_desc_tbl, ARRAY_SIZE(reg_0_desc_tbl) }, |
| { reg_1_desc_tbl, ARRAY_SIZE(reg_1_desc_tbl) }, |
| { reg_2_desc_tbl, ARRAY_SIZE(reg_2_desc_tbl) }, |
| { reg_3_desc_tbl, ARRAY_SIZE(reg_3_desc_tbl) }, |
| { reg_4_desc_tbl, ARRAY_SIZE(reg_4_desc_tbl) }, |
| { reg_5_desc_tbl, ARRAY_SIZE(reg_5_desc_tbl) }, |
| }; |
| |
| static void dump_reg( |
| ushort regval, |
| const MII_reg_desc_t *prd, |
| const MII_field_desc_and_len_t *pdl); |
| |
| static int special_field( |
| ushort regno, |
| const MII_field_desc_t *pdesc, |
| ushort regval); |
| |
| static void MII_dump_0_to_5( |
| ushort regvals[6], |
| uchar reglo, |
| uchar reghi) |
| { |
| ulong i; |
| |
| for (i = 0; i < 6; i++) { |
| if ((reglo <= i) && (i <= reghi)) |
| dump_reg(regvals[i], ®_0_5_desc_tbl[i], |
| &desc_and_len_tbl[i]); |
| } |
| } |
| |
| static void dump_reg( |
| ushort regval, |
| const MII_reg_desc_t *prd, |
| const MII_field_desc_and_len_t *pdl) |
| { |
| ulong i; |
| ushort mask_in_place; |
| const MII_field_desc_t *pdesc; |
| |
| printf("%u. (%04hx) -- %s --\n", |
| prd->regno, regval, prd->name); |
| |
| for (i = 0; i < pdl->len; i++) { |
| pdesc = &pdl->pdesc[i]; |
| |
| mask_in_place = pdesc->mask << pdesc->lo; |
| |
| printf(" (%04hx:%04x) %u.", |
| mask_in_place, |
| regval & mask_in_place, |
| prd->regno); |
| |
| if (special_field(prd->regno, pdesc, regval)) { |
| } |
| else { |
| if (pdesc->hi == pdesc->lo) |
| printf("%2u ", pdesc->lo); |
| else |
| printf("%2u-%2u", pdesc->hi, pdesc->lo); |
| printf(" = %5u %s", |
| (regval & mask_in_place) >> pdesc->lo, |
| pdesc->name); |
| } |
| printf("\n"); |
| |
| } |
| printf("\n"); |
| } |
| |
| /* Special fields: |
| ** 0.6,13 |
| ** 0.8 |
| ** 2.15-0 |
| ** 3.15-0 |
| ** 4.4-0 |
| ** 5.4-0 |
| */ |
| |
| static int special_field( |
| ushort regno, |
| const MII_field_desc_t *pdesc, |
| ushort regval) |
| { |
| if ((regno == MII_BMCR) && (pdesc->lo == 6)) { |
| ushort speed_bits = regval & (BMCR_SPEED1000 | BMCR_SPEED100); |
| printf("%2u,%2u = b%u%u speed selection = %s Mbps", |
| 6, 13, |
| (regval >> 6) & 1, |
| (regval >> 13) & 1, |
| speed_bits == BMCR_SPEED1000 ? "1000" : |
| speed_bits == BMCR_SPEED100 ? "100" : |
| "10"); |
| return 1; |
| } |
| |
| else if ((regno == MII_BMCR) && (pdesc->lo == 8)) { |
| printf("%2u = %5u duplex = %s", |
| pdesc->lo, |
| (regval >> pdesc->lo) & 1, |
| ((regval >> pdesc->lo) & 1) ? "full" : "half"); |
| return 1; |
| } |
| |
| else if ((regno == MII_ADVERTISE) && (pdesc->lo == 0)) { |
| ushort sel_bits = (regval >> pdesc->lo) & pdesc->mask; |
| printf("%2u-%2u = %5u selector = %s", |
| pdesc->hi, pdesc->lo, sel_bits, |
| sel_bits == PHY_ANLPAR_PSB_802_3 ? |
| "IEEE 802.3" : |
| sel_bits == PHY_ANLPAR_PSB_802_9 ? |
| "IEEE 802.9 ISLAN-16T" : |
| "???"); |
| return 1; |
| } |
| |
| else if ((regno == MII_LPA) && (pdesc->lo == 0)) { |
| ushort sel_bits = (regval >> pdesc->lo) & pdesc->mask; |
| printf("%2u-%2u = %u selector = %s", |
| pdesc->hi, pdesc->lo, sel_bits, |
| sel_bits == PHY_ANLPAR_PSB_802_3 ? |
| "IEEE 802.3" : |
| sel_bits == PHY_ANLPAR_PSB_802_9 ? |
| "IEEE 802.9 ISLAN-16T" : |
| "???"); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| static char last_op[2]; |
| static uint last_data; |
| static uint last_addr_lo; |
| static uint last_addr_hi; |
| static uint last_reg_lo; |
| static uint last_reg_hi; |
| static uint last_mask; |
| |
| static void extract_range( |
| char * input, |
| unsigned char * plo, |
| unsigned char * phi) |
| { |
| char * end; |
| *plo = simple_strtoul(input, &end, 16); |
| if (*end == '-') { |
| end++; |
| *phi = simple_strtoul(end, NULL, 16); |
| } |
| else { |
| *phi = *plo; |
| } |
| } |
| |
| /* ---------------------------------------------------------------- */ |
| static int do_mii(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| char op[2]; |
| unsigned char addrlo, addrhi, reglo, reghi; |
| unsigned char addr, reg; |
| unsigned short data, mask; |
| int rcode = 0; |
| const char *devname; |
| |
| if (argc < 2) |
| return CMD_RET_USAGE; |
| |
| #if defined(CONFIG_MII_INIT) |
| mii_init (); |
| #endif |
| |
| /* |
| * We use the last specified parameters, unless new ones are |
| * entered. |
| */ |
| op[0] = last_op[0]; |
| op[1] = last_op[1]; |
| addrlo = last_addr_lo; |
| addrhi = last_addr_hi; |
| reglo = last_reg_lo; |
| reghi = last_reg_hi; |
| data = last_data; |
| mask = last_mask; |
| |
| if ((flag & CMD_FLAG_REPEAT) == 0) { |
| op[0] = argv[1][0]; |
| if (strlen(argv[1]) > 1) |
| op[1] = argv[1][1]; |
| else |
| op[1] = '\0'; |
| |
| if (argc >= 3) |
| extract_range(argv[2], &addrlo, &addrhi); |
| if (argc >= 4) |
| extract_range(argv[3], ®lo, ®hi); |
| if (argc >= 5) |
| data = simple_strtoul(argv[4], NULL, 16); |
| if (argc >= 6) |
| mask = simple_strtoul(argv[5], NULL, 16); |
| } |
| |
| /* use current device */ |
| devname = miiphy_get_current_dev(); |
| |
| /* |
| * check info/read/write. |
| */ |
| if (op[0] == 'i') { |
| unsigned char j, start, end; |
| unsigned int oui; |
| unsigned char model; |
| unsigned char rev; |
| |
| /* |
| * Look for any and all PHYs. Valid addresses are 0..31. |
| */ |
| if (argc >= 3) { |
| start = addrlo; end = addrhi; |
| } else { |
| start = 0; end = 31; |
| } |
| |
| for (j = start; j <= end; j++) { |
| if (miiphy_info (devname, j, &oui, &model, &rev) == 0) { |
| printf("PHY 0x%02X: " |
| "OUI = 0x%04X, " |
| "Model = 0x%02X, " |
| "Rev = 0x%02X, " |
| "%3dbase%s, %s\n", |
| j, oui, model, rev, |
| miiphy_speed (devname, j), |
| miiphy_is_1000base_x (devname, j) |
| ? "X" : "T", |
| (miiphy_duplex (devname, j) == FULL) |
| ? "FDX" : "HDX"); |
| } |
| } |
| } else if (op[0] == 'r') { |
| for (addr = addrlo; addr <= addrhi; addr++) { |
| for (reg = reglo; reg <= reghi; reg++) { |
| data = 0xffff; |
| if (miiphy_read (devname, addr, reg, &data) != 0) { |
| printf( |
| "Error reading from the PHY addr=%02x reg=%02x\n", |
| addr, reg); |
| rcode = 1; |
| } else { |
| if ((addrlo != addrhi) || (reglo != reghi)) |
| printf("addr=%02x reg=%02x data=", |
| (uint)addr, (uint)reg); |
| printf("%04X\n", data & 0x0000FFFF); |
| } |
| } |
| if ((addrlo != addrhi) && (reglo != reghi)) |
| printf("\n"); |
| } |
| } else if (op[0] == 'w') { |
| for (addr = addrlo; addr <= addrhi; addr++) { |
| for (reg = reglo; reg <= reghi; reg++) { |
| if (miiphy_write (devname, addr, reg, data) != 0) { |
| printf("Error writing to the PHY addr=%02x reg=%02x\n", |
| addr, reg); |
| rcode = 1; |
| } |
| } |
| } |
| } else if (op[0] == 'm') { |
| for (addr = addrlo; addr <= addrhi; addr++) { |
| for (reg = reglo; reg <= reghi; reg++) { |
| unsigned short val = 0; |
| if (miiphy_read(devname, addr, |
| reg, &val)) { |
| printf("Error reading from the PHY"); |
| printf(" addr=%02x", addr); |
| printf(" reg=%02x\n", reg); |
| rcode = 1; |
| } else { |
| val = (val & ~mask) | (data & mask); |
| if (miiphy_write(devname, addr, |
| reg, val)) { |
| printf("Error writing to the PHY"); |
| printf(" addr=%02x", addr); |
| printf(" reg=%02x\n", reg); |
| rcode = 1; |
| } |
| } |
| } |
| } |
| } else if (strncmp(op, "du", 2) == 0) { |
| ushort regs[6]; |
| int ok = 1; |
| if ((reglo > 5) || (reghi > 5)) { |
| printf( |
| "The MII dump command only formats the " |
| "standard MII registers, 0-5.\n"); |
| return 1; |
| } |
| for (addr = addrlo; addr <= addrhi; addr++) { |
| for (reg = reglo; reg < reghi + 1; reg++) { |
| if (miiphy_read(devname, addr, reg, ®s[reg]) != 0) { |
| ok = 0; |
| printf( |
| "Error reading from the PHY addr=%02x reg=%02x\n", |
| addr, reg); |
| rcode = 1; |
| } |
| } |
| if (ok) |
| MII_dump_0_to_5(regs, reglo, reghi); |
| printf("\n"); |
| } |
| } else if (strncmp(op, "de", 2) == 0) { |
| if (argc == 2) |
| miiphy_listdev (); |
| else |
| miiphy_set_current_dev (argv[2]); |
| } else { |
| return CMD_RET_USAGE; |
| } |
| |
| /* |
| * Save the parameters for repeats. |
| */ |
| last_op[0] = op[0]; |
| last_op[1] = op[1]; |
| last_addr_lo = addrlo; |
| last_addr_hi = addrhi; |
| last_reg_lo = reglo; |
| last_reg_hi = reghi; |
| last_data = data; |
| last_mask = mask; |
| |
| return rcode; |
| } |
| |
| /***************************************************/ |
| |
| U_BOOT_CMD( |
| mii, 6, 1, do_mii, |
| "MII utility commands", |
| "device - list available devices\n" |
| "mii device <devname> - set current device\n" |
| "mii info <addr> - display MII PHY info\n" |
| "mii read <addr> <reg> - read MII PHY <addr> register <reg>\n" |
| "mii write <addr> <reg> <data> - write MII PHY <addr> register <reg>\n" |
| "mii modify <addr> <reg> <data> <mask> - modify MII PHY <addr> register <reg>\n" |
| " updating bits identified in <mask>\n" |
| "mii dump <addr> <reg> - pretty-print <addr> <reg> (0-5 only)\n" |
| "Addr and/or reg may be ranges, e.g. 2-7." |
| ); |