+++ /dev/null
-/*
- * (C) Copyright 2009
- * Marvell Semiconductor <www.marvell.com>
- * Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <netdev.h>
-#include "mv88e61xx.h"
-
-/*
- * Uncomment either of the following line for local debug control;
- * otherwise global debug control will apply.
- */
-
-/* #undef DEBUG */
-/* #define DEBUG */
-
-#ifdef CONFIG_MV88E61XX_MULTICHIP_ADRMODE
-/* Chip Address mode
- * The Switch support two modes of operation
- * 1. single chip mode and
- * 2. Multi-chip mode
- * Refer section 9.2 &9.3 in chip datasheet-02 for more details
- *
- * By default single chip mode is configured
- * multichip mode operation can be configured in board header
- */
-static int mv88e61xx_busychk_multic(char *name, u32 devaddr)
-{
- u16 reg = 0;
- u32 timeout = MV88E61XX_PHY_TIMEOUT;
-
- /* Poll till SMIBusy bit is clear */
- do {
- miiphy_read(name, devaddr, 0x0, ®);
- if (timeout-- == 0) {
- printf("SMI busy timeout\n");
- return -1;
- }
- } while (reg & (1 << 15));
- return 0;
-}
-
-static void mv88e61xx_switch_write(char *name, u32 phy_adr,
- u32 reg_ofs, u16 data)
-{
- u16 mii_dev_addr;
-
- /* command to read PHY dev address */
- if (miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) {
- printf("Error..could not read PHY dev address\n");
- return;
- }
- mv88e61xx_busychk_multic(name, mii_dev_addr);
- /* Write data to Switch indirect data register */
- miiphy_write(name, mii_dev_addr, 0x1, data);
- /* Write command to Switch indirect command register (write) */
- miiphy_write(name, mii_dev_addr, 0x0,
- reg_ofs | (phy_adr << 5) | (1 << 10) | (1 << 12) | (1 <<
- 15));
-}
-
-static void mv88e61xx_switch_read(char *name, u32 phy_adr,
- u32 reg_ofs, u16 *data)
-{
- u16 mii_dev_addr;
-
- /* command to read PHY dev address */
- if (miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) {
- printf("Error..could not read PHY dev address\n");
- return;
- }
- mv88e61xx_busychk_multic(name, mii_dev_addr);
- /* Write command to Switch indirect command register (read) */
- miiphy_write(name, mii_dev_addr, 0x0,
- reg_ofs | (phy_adr << 5) | (1 << 11) | (1 << 12) | (1 <<
- 15));
- mv88e61xx_busychk_multic(name, mii_dev_addr);
- /* Read data from Switch indirect data register */
- miiphy_read(name, mii_dev_addr, 0x1, data);
-}
-#endif /* CONFIG_MV88E61XX_MULTICHIP_ADRMODE */
-
-/*
- * Convenience macros for switch device/port reads/writes
- * These macros output valid 'mv88e61xx' U_BOOT_CMDs
- */
-
-#ifndef DEBUG
-#define WR_SWITCH_REG wr_switch_reg
-#define RD_SWITCH_REG rd_switch_reg
-#define WR_SWITCH_PORT_REG(n, p, r, d) \
- WR_SWITCH_REG(n, (MV88E61XX_PRT_OFST+p), r, d)
-#define RD_SWITCH_PORT_REG(n, p, r, d) \
- RD_SWITCH_REG(n, (MV88E61XX_PRT_OFST+p), r, d)
-#else
-static void WR_SWITCH_REG(char *name, u32 dev_adr, u32 reg_ofs, u16 data)
-{
- printf("mv88e61xx %s dev %02x reg %02x write %04x\n",
- name, dev_adr, reg_ofs, data);
- wr_switch_reg(name, dev_adr, reg_ofs, data);
-}
-static void RD_SWITCH_REG(char *name, u32 dev_adr, u32 reg_ofs, u16 *data)
-{
- rd_switch_reg(name, dev_adr, reg_ofs, data);
- printf("mv88e61xx %s dev %02x reg %02x read %04x\n",
- name, dev_adr, reg_ofs, *data);
-}
-static void WR_SWITCH_PORT_REG(char *name, u32 prt_adr, u32 reg_ofs,
- u16 data)
-{
- printf("mv88e61xx %s port %02x reg %02x write %04x\n",
- name, prt_adr, reg_ofs, data);
- wr_switch_reg(name, (MV88E61XX_PRT_OFST+prt_adr), reg_ofs, data);
-}
-static void RD_SWITCH_PORT_REG(char *name, u32 prt_adr, u32 reg_ofs,
- u16 *data)
-{
- rd_switch_reg(name, (MV88E61XX_PRT_OFST+prt_adr), reg_ofs, data);
- printf("mv88e61xx %s port %02x reg %02x read %04x\n",
- name, prt_adr, reg_ofs, *data);
-}
-#endif
-
-/*
- * Local functions to read/write registers on the switch PHYs.
- * NOTE! This goes through switch, not direct miiphy, writes and reads!
- */
-
-/*
- * Make sure SMIBusy bit cleared before another
- * SMI operation can take place
- */
-static int mv88e61xx_busychk(char *name)
-{
- u16 reg = 0;
- u32 timeout = MV88E61XX_PHY_TIMEOUT;
- do {
- rd_switch_reg(name, MV88E61XX_GLB2REG_DEVADR,
- MV88E61XX_PHY_CMD, ®);
- if (timeout-- == 0) {
- printf("SMI busy timeout\n");
- return -1;
- }
- } while (reg & 1 << 15); /* busy mask */
- return 0;
-}
-
-static inline int mv88e61xx_switch_miiphy_write(char *name, u32 phy,
- u32 reg, u16 data)
-{
- /* write switch data reg then cmd reg then check completion */
- wr_switch_reg(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA,
- data);
- wr_switch_reg(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD,
- (MV88E61XX_PHY_WRITE_CMD | (phy << 5) | reg));
- return mv88e61xx_busychk(name);
-}
-
-static inline int mv88e61xx_switch_miiphy_read(char *name, u32 phy,
- u32 reg, u16 *data)
-{
- /* write switch cmd reg, check for completion */
- wr_switch_reg(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD,
- (MV88E61XX_PHY_READ_CMD | (phy << 5) | reg));
- if (mv88e61xx_busychk(name))
- return -1;
- /* read switch data reg and return success */
- rd_switch_reg(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, data);
- return 0;
-}
-
-/*
- * Convenience macros for switch PHY reads/writes
- */
-
-#ifndef DEBUG
-#define WR_SWITCH_PHY_REG mv88e61xx_switch_miiphy_write
-#define RD_SWITCH_PHY_REG mv88e61xx_switch_miiphy_read
-#else
-static inline int WR_SWITCH_PHY_REG(char *name, u32 phy_adr,
- u32 reg_ofs, u16 data)
-{
- int r = mv88e61xx_switch_miiphy_write(name, phy_adr, reg_ofs, data);
- if (r)
- printf("** ERROR writing mv88e61xx %s phy %02x reg %02x\n",
- name, phy_adr, reg_ofs);
- else
- printf("mv88e61xx %s phy %02x reg %02x write %04x\n",
- name, phy_adr, reg_ofs, data);
- return r;
-}
-static inline int RD_SWITCH_PHY_REG(char *name, u32 phy_adr,
- u32 reg_ofs, u16 *data)
-{
- int r = mv88e61xx_switch_miiphy_read(name, phy_adr, reg_ofs, data);
- if (r)
- printf("** ERROR reading mv88e61xx %s phy %02x reg %02x\n",
- name, phy_adr, reg_ofs);
- else
- printf("mv88e61xx %s phy %02x reg %02x read %04x\n",
- name, phy_adr, reg_ofs, *data);
- return r;
-}
-#endif
-
-static void mv88e61xx_port_vlan_config(struct mv88e61xx_config *swconfig)
-{
- u32 prt;
- u16 reg;
- char *name = swconfig->name;
- u32 port_mask = swconfig->ports_enabled;
-
- /* apply internal vlan config */
- for (prt = 0; prt < MV88E61XX_MAX_PORTS_NUM; prt++) {
- /* only for enabled ports */
- if ((1 << prt) & port_mask) {
- /* take vlan map from swconfig */
- u8 vlanmap = swconfig->vlancfg[prt];
- /* remove disabled ports from vlan map */
- vlanmap &= swconfig->ports_enabled;
- /* apply vlan map to port */
- RD_SWITCH_PORT_REG(name, prt,
- MV88E61XX_PRT_VMAP_REG, ®);
- reg &= ~((1 << MV88E61XX_MAX_PORTS_NUM) - 1);
- reg |= vlanmap;
- WR_SWITCH_PORT_REG(name, prt,
- MV88E61XX_PRT_VMAP_REG, reg);
- }
- }
-}
-
-/*
- * Power up the specified port and reset PHY
- */
-static int mv88361xx_powerup(struct mv88e61xx_config *swconfig, u32 phy)
-{
- char *name = swconfig->name;
-
- /* Write Copper Specific control reg1 (0x10) for-
- * Enable Phy power up
- * Energy Detect on (sense&Xmit NLP Periodically
- * reset other settings default
- */
- if (WR_SWITCH_PHY_REG(name, phy, 0x10, 0x3360))
- return -1;
-
- /* Write PHY ctrl reg (0x0) to apply
- * Phy reset (set bit 15 low)
- * reset other default values
- */
- if (WR_SWITCH_PHY_REG(name, phy, 0x00, 0x9140))
- return -1;
-
- return 0;
-}
-
-/*
- * Default Setup for LED[0]_Control (ref: Table 46 Datasheet-3)
- * is set to "On-1000Mb/s Link, Off Else"
- * This function sets it to "On-Link, Blink-Activity, Off-NoLink"
- *
- * This is optional settings may be needed on some boards
- * to setup PHY LEDs default configuration to detect 10/100/1000Mb/s
- * Link status
- */
-static int mv88361xx_led_init(struct mv88e61xx_config *swconfig, u32 phy)
-{
- char *name = swconfig->name;
-
- if (swconfig->led_init != MV88E61XX_LED_INIT_EN)
- return 0;
-
- /* set page address to 3 */
- if (WR_SWITCH_PHY_REG(name, phy, 0x16, 0x0003))
- return -1;
-
- /*
- * set LED Func Ctrl reg
- * value 0x0001 = LED[0] On-Link, Blink-Activity, Off-NoLink
- */
- if (WR_SWITCH_PHY_REG(name, phy, 0x10, 0x0001))
- return -1;
-
- /* set page address to 0 */
- if (WR_SWITCH_PHY_REG(name, phy, 0x16, 0x0000))
- return -1;
-
- return 0;
-}
-
-/*
- * Reverse Transmit polarity for Media Dependent Interface
- * Pins (MDIP) bits in Copper Specific Control Register 3
- * (Page 0, Reg 20 for each phy (except cpu port)
- * Reference: Section 1.1 Switch datasheet-3
- *
- * This is optional settings may be needed on some boards
- * for PHY<->magnetics h/w tuning
- */
-static int mv88361xx_reverse_mdipn(struct mv88e61xx_config *swconfig, u32 phy)
-{
- char *name = swconfig->name;
-
- if (swconfig->mdip != MV88E61XX_MDIP_REVERSE)
- return 0;
-
- /*Reverse MDIP/N[3:0] bits */
- if (WR_SWITCH_PHY_REG(name, phy, 0x14, 0x000f))
- return -1;
-
- return 0;
-}
-
-/*
- * Marvell 88E61XX Switch initialization
- */
-int mv88e61xx_switch_initialize(struct mv88e61xx_config *swconfig)
-{
- u32 prt;
- u16 reg;
- char *idstr;
- char *name = swconfig->name;
- int time;
-
- if (miiphy_set_current_dev(name)) {
- printf("%s failed\n", __FUNCTION__);
- return -1;
- }
-
- if (!(swconfig->cpuport & ((1 << 4) | (1 << 5)))) {
- swconfig->cpuport = (1 << 5);
- printf("Invalid cpu port config, using default port5\n");
- }
-
- RD_SWITCH_PORT_REG(name, 0, MII_PHYSID2, ®);
- switch (reg &= 0xfff0) {
- case 0x1610:
- idstr = "88E6161";
- break;
- case 0x1650:
- idstr = "88E6165";
- break;
- case 0x1210:
- idstr = "88E6123";
- /* ports 2,3,4 not available */
- swconfig->ports_enabled &= 0x023;
- break;
- default:
- /* Could not detect switch id */
- idstr = "88E61??";
- break;
- }
-
- /* be sure all ports are disabled */
- for (prt = 0; prt < MV88E61XX_MAX_PORTS_NUM; prt++) {
- RD_SWITCH_PORT_REG(name, prt, MV88E61XX_PRT_CTRL_REG, ®);
- reg &= ~0x3;
- WR_SWITCH_PORT_REG(name, prt, MV88E61XX_PRT_CTRL_REG, reg);
- }
-
- /* wait 2 ms for queues to drain */
- udelay(2000);
-
- /* reset switch */
- RD_SWITCH_REG(name, MV88E61XX_GLBREG_DEVADR, MV88E61XX_SGCR, ®);
- reg |= 0x8000;
- WR_SWITCH_REG(name, MV88E61XX_GLBREG_DEVADR, MV88E61XX_SGCR, reg);
-
- /* wait up to 1 second for switch reset complete */
- for (time = 1000; time; time--) {
- RD_SWITCH_REG(name, MV88E61XX_GLBREG_DEVADR, MV88E61XX_SGSR,
- ®);
- if ((reg & 0xc800) == 0xc800)
- break;
- udelay(1000);
- }
- if (!time)
- return -1;
-
- /* Port based VLANs configuration */
- mv88e61xx_port_vlan_config(swconfig);
-
- if (swconfig->rgmii_delay == MV88E61XX_RGMII_DELAY_EN) {
- /*
- * Enable RGMII delay on Tx and Rx for CPU port
- * Ref: sec 9.5 of chip datasheet-02
- */
- /*Force port link down */
- WR_SWITCH_PORT_REG(name, 5, MV88E61XX_PCS_CTRL_REG, 0x10);
- /* configure port RGMII delay */
- WR_SWITCH_PORT_REG(name, 4,
- MV88E61XX_RGMII_TIMECTRL_REG, 0x81e7);
- RD_SWITCH_PORT_REG(name, 5,
- MV88E61XX_RGMII_TIMECTRL_REG, ®);
- WR_SWITCH_PORT_REG(name, 5,
- MV88E61XX_RGMII_TIMECTRL_REG, reg | 0x18);
- WR_SWITCH_PORT_REG(name, 4,
- MV88E61XX_RGMII_TIMECTRL_REG, 0xc1e7);
- /* Force port to RGMII FDX 1000Base then up */
- WR_SWITCH_PORT_REG(name, 5, MV88E61XX_PCS_CTRL_REG, 0x1e);
- WR_SWITCH_PORT_REG(name, 5, MV88E61XX_PCS_CTRL_REG, 0x3e);
- }
-
- for (prt = 0; prt < MV88E61XX_MAX_PORTS_NUM; prt++) {
-
- /* configure port's PHY */
- if (!((1 << prt) & swconfig->cpuport)) {
- /* port 4 has phy 6, not 4 */
- int phy = (prt == 4) ? 6 : prt;
- if (mv88361xx_powerup(swconfig, phy))
- return -1;
- if (mv88361xx_reverse_mdipn(swconfig, phy))
- return -1;
- if (mv88361xx_led_init(swconfig, phy))
- return -1;
- }
-
- /* set port VID to port+1 except for cpu port */
- if (!((1 << prt) & swconfig->cpuport)) {
- RD_SWITCH_PORT_REG(name, prt,
- MV88E61XX_PRT_VID_REG, ®);
- WR_SWITCH_PORT_REG(name, prt,
- MV88E61XX_PRT_VID_REG,
- (reg & ~1023) | (prt+1));
- }
-
- /*Program port state */
- RD_SWITCH_PORT_REG(name, prt,
- MV88E61XX_PRT_CTRL_REG, ®);
- WR_SWITCH_PORT_REG(name, prt,
- MV88E61XX_PRT_CTRL_REG,
- reg | (swconfig->portstate & 0x03));
-
- }
-
- printf("%s Initialized on %s\n", idstr, name);
- return 0;
-}
-
-#ifdef CONFIG_MV88E61XX_CMD
-static int
-do_switch(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- char *name, *endp;
- int write = 0;
- enum { dev, prt, phy } target = dev;
- u32 addrlo, addrhi, addr;
- u32 reglo, reghi, reg;
- u16 data, rdata;
-
- if (argc < 7)
- return -1;
-
- name = argv[1];
-
- if (strcmp(argv[2], "phy") == 0)
- target = phy;
- else if (strcmp(argv[2], "port") == 0)
- target = prt;
- else if (strcmp(argv[2], "dev") != 0)
- return 1;
-
- addrlo = simple_strtoul(argv[3], &endp, 16);
-
- if (!*endp) {
- addrhi = addrlo;
- } else {
- while (*endp < '0' || *endp > '9')
- endp++;
- addrhi = simple_strtoul(endp, NULL, 16);
- }
-
- reglo = simple_strtoul(argv[5], &endp, 16);
- if (!*endp) {
- reghi = reglo;
- } else {
- while (*endp < '0' || *endp > '9')
- endp++;
- reghi = simple_strtoul(endp, NULL, 16);
- }
-
- if (strcmp(argv[6], "write") == 0)
- write = 1;
- else if (strcmp(argv[6], "read") != 0)
- return 1;
-
- data = simple_strtoul(argv[7], NULL, 16);
-
- for (addr = addrlo; addr <= addrhi; addr++) {
- for (reg = reglo; reg <= reghi; reg++) {
- if (write) {
- if (target == phy)
- mv88e61xx_switch_miiphy_write(
- name, addr, reg, data);
- else if (target == prt)
- wr_switch_reg(name,
- addr+MV88E61XX_PRT_OFST,
- reg, data);
- else
- wr_switch_reg(name, addr, reg, data);
- } else {
- if (target == phy)
- mv88e61xx_switch_miiphy_read(
- name, addr, reg, &rdata);
- else if (target == prt)
- rd_switch_reg(name,
- addr+MV88E61XX_PRT_OFST,
- reg, &rdata);
- else
- rd_switch_reg(name, addr, reg, &rdata);
- printf("%s %s %s %02x %s %02x %s %04x\n",
- argv[0], argv[1], argv[2], addr,
- argv[4], reg, argv[6], rdata);
- if (write && argc == 7 && rdata != data)
- return 1;
- }
- }
- }
- return 0;
-}
-
-U_BOOT_CMD(mv88e61xx, 8, 0, do_switch,
- "Read or write mv88e61xx switch registers",
- "<ethdevice> dev|port|phy <addr> reg <reg> write <data>\n"
- "<ethdevice> dev|port|phy <addr> reg <reg> read [<data>]\n"
- " - read/write switch device, port or phy at (addr,reg)\n"
- " addr=0..0x1C for dev, 0..5 for port or phy.\n"
- " reg=0..0x1F.\n"
- " data=0..0xFFFF (tested if present against actual read).\n"
- " All numeric parameters are assumed to be hex.\n"
- " <addr> and <<reg> arguments can be ranges (x..y)"
-);
-#endif /* CONFIG_MV88E61XX_CMD */
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