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