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u-boot/board/freescale/ls1046aqds/eth.c
Florinel Iordache d698112fd6 ls1046aqds: add support for backplane kr 
Add support for backplane kr on ls1046aqds: remove board specific fixups
on ls1046aqds for ethernet interfaces specified in device tree as
supported backplane modes.

Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-04-20 13:35:11 +05:30

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2016 Freescale Semiconductor, Inc.
* Copyright 2018-2020 NXP
*/
#include <common.h>
#include <asm/io.h>
#include <netdev.h>
#include <fdt_support.h>
#include <fm_eth.h>
#include <fsl_mdio.h>
#include <fsl_dtsec.h>
#include <malloc.h>
#include <asm/arch/fsl_serdes.h>
#include "../common/qixis.h"
#include "../common/fman.h"
#include "ls1046aqds_qixis.h"
#define EMI_NONE 0xFF
#define EMI1_RGMII1 0
#define EMI1_RGMII2 1
#define EMI1_SLOT1 2
#define EMI1_SLOT2 3
#define EMI1_SLOT4 4
static int mdio_mux[NUM_FM_PORTS];
static const char * const mdio_names[] = {
"LS1046AQDS_MDIO_RGMII1",
"LS1046AQDS_MDIO_RGMII2",
"LS1046AQDS_MDIO_SLOT1",
"LS1046AQDS_MDIO_SLOT2",
"LS1046AQDS_MDIO_SLOT4",
"NULL",
};
/* Map SerDes 1 & 2 lanes to default slot. */
static u8 lane_to_slot[] = {1, 1, 1, 1, 0, 4, 0 , 0};
static const char *ls1046aqds_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;
if (muxval > EMI1_SLOT4)
return NULL;
name = ls1046aqds_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;
}
struct ls1046aqds_mdio {
u8 muxval;
struct mii_dev *realbus;
};
static void ls1046aqds_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 ls1046aqds_mdio_read(struct mii_dev *bus, int addr, int devad,
int regnum)
{
struct ls1046aqds_mdio *priv = bus->priv;
ls1046aqds_mux_mdio(priv->muxval);
return priv->realbus->read(priv->realbus, addr, devad, regnum);
}
static int ls1046aqds_mdio_write(struct mii_dev *bus, int addr, int devad,
int regnum, u16 value)
{
struct ls1046aqds_mdio *priv = bus->priv;
ls1046aqds_mux_mdio(priv->muxval);
return priv->realbus->write(priv->realbus, addr, devad,
regnum, value);
}
static int ls1046aqds_mdio_reset(struct mii_dev *bus)
{
struct ls1046aqds_mdio *priv = bus->priv;
return priv->realbus->reset(priv->realbus);
}
static int ls1046aqds_mdio_init(char *realbusname, u8 muxval)
{
struct ls1046aqds_mdio *pmdio;
struct mii_dev *bus = mdio_alloc();
if (!bus) {
printf("Failed to allocate ls1046aqds MDIO bus\n");
return -1;
}
pmdio = malloc(sizeof(*pmdio));
if (!pmdio) {
printf("Failed to allocate ls1046aqds private data\n");
free(bus);
return -1;
}
bus->read = ls1046aqds_mdio_read;
bus->write = ls1046aqds_mdio_write;
bus->reset = ls1046aqds_mdio_reset;
sprintf(bus->name, ls1046aqds_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);
}
void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
enum fm_port port, int offset)
{
struct fixed_link f_link;
const char *phyconn;
if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_SGMII) {
switch (port) {
case FM1_DTSEC9:
fdt_set_phy_handle(fdt, compat, addr, "sgmii-s1-p1");
break;
case FM1_DTSEC10:
fdt_set_phy_handle(fdt, compat, addr, "sgmii-s1-p2");
break;
case FM1_DTSEC5:
fdt_set_phy_handle(fdt, compat, addr, "sgmii-s1-p3");
break;
case FM1_DTSEC6:
fdt_set_phy_handle(fdt, compat, addr, "sgmii-s1-p4");
break;
case FM1_DTSEC2:
fdt_set_phy_handle(fdt, compat, addr, "sgmii-s4-p1");
break;
default:
break;
}
} else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_SGMII_2500) {
/* 2.5G SGMII interface */
f_link.phy_id = cpu_to_fdt32(port);
f_link.duplex = cpu_to_fdt32(1);
f_link.link_speed = cpu_to_fdt32(1000);
f_link.pause = 0;
f_link.asym_pause = 0;
/* no PHY for 2.5G SGMII on QDS */
fdt_delprop(fdt, offset, "phy-handle");
fdt_setprop(fdt, offset, "fixed-link", &f_link, sizeof(f_link));
fdt_setprop_string(fdt, offset, "phy-connection-type",
"sgmii-2500");
} else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_QSGMII) {
switch (port) {
case FM1_DTSEC1:
fdt_set_phy_handle(fdt, compat, addr, "qsgmii-s2-p4");
break;
case FM1_DTSEC5:
fdt_set_phy_handle(fdt, compat, addr, "qsgmii-s2-p2");
break;
case FM1_DTSEC6:
fdt_set_phy_handle(fdt, compat, addr, "qsgmii-s2-p1");
break;
case FM1_DTSEC10:
fdt_set_phy_handle(fdt, compat, addr, "qsgmii-s2-p3");
break;
default:
break;
}
fdt_delprop(fdt, offset, "phy-connection-type");
fdt_setprop_string(fdt, offset, "phy-connection-type",
"qsgmii");
} else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_XGMII &&
(port == FM1_10GEC1 || port == FM1_10GEC2)) {
phyconn = fdt_getprop(fdt, offset, "phy-connection-type", NULL);
if (is_backplane_mode(phyconn)) {
/* Backplane KR mode: skip fixups */
printf("Interface %d in backplane KR mode\n", port);
} else {
/* XFI interface */
f_link.phy_id = cpu_to_fdt32(port);
f_link.duplex = cpu_to_fdt32(1);
f_link.link_speed = cpu_to_fdt32(10000);
f_link.pause = 0;
f_link.asym_pause = 0;
/* no PHY for XFI */
fdt_delprop(fdt, offset, "phy-handle");
fdt_setprop(fdt, offset, "fixed-link", &f_link,
sizeof(f_link));
fdt_setprop_string(fdt, offset, "phy-connection-type",
"xgmii");
}
}
}
void fdt_fixup_board_enet(void *fdt)
{
int i;
for (i = FM1_DTSEC1; i < NUM_FM_PORTS; i++) {
switch (fm_info_get_enet_if(i)) {
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
switch (mdio_mux[i]) {
case EMI1_SLOT1:
fdt_status_okay_by_alias(fdt, "emi1-slot1");
break;
case EMI1_SLOT2:
fdt_status_okay_by_alias(fdt, "emi1-slot2");
break;
case EMI1_SLOT4:
fdt_status_okay_by_alias(fdt, "emi1-slot4");
break;
default:
break;
}
break;
default:
break;
}
}
}
int board_eth_init(bd_t *bis)
{
#ifdef CONFIG_FMAN_ENET
int i, idx, lane, slot, interface;
struct memac_mdio_info dtsec_mdio_info;
struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
u32 srds_s1, srds_s2;
u8 brdcfg12;
srds_s1 = in_be32(&gur->rcwsr[4]) &
FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK;
srds_s1 >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT;
srds_s2 = in_be32(&gur->rcwsr[4]) &
FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK;
srds_s2 >>= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT;
/* Initialize the mdio_mux array so we can recognize empty elements */
for (i = 0; i < NUM_FM_PORTS; i++)
mdio_mux[i] = EMI_NONE;
dtsec_mdio_info.regs =
(struct memac_mdio_controller *)CONFIG_SYS_FM1_DTSEC_MDIO_ADDR;
dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME;
/* Register the 1G MDIO bus */
fm_memac_mdio_init(bis, &dtsec_mdio_info);
/* Register the muxing front-ends to the MDIO buses */
ls1046aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII1);
ls1046aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII2);
ls1046aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT1);
ls1046aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT2);
ls1046aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT4);
/* Set the two on-board RGMII PHY address */
fm_info_set_phy_address(FM1_DTSEC3, RGMII_PHY1_ADDR);
fm_info_set_phy_address(FM1_DTSEC4, RGMII_PHY2_ADDR);
switch (srds_s1) {
case 0x3333:
/* SGMII on slot 1, MAC 9 */
fm_info_set_phy_address(FM1_DTSEC9, SGMII_CARD_PORT1_PHY_ADDR);
case 0x1333:
case 0x2333:
/* SGMII on slot 1, MAC 10 */
fm_info_set_phy_address(FM1_DTSEC10, SGMII_CARD_PORT2_PHY_ADDR);
case 0x1133:
case 0x2233:
/* SGMII on slot 1, MAC 5/6 */
fm_info_set_phy_address(FM1_DTSEC5, SGMII_CARD_PORT3_PHY_ADDR);
fm_info_set_phy_address(FM1_DTSEC6, SGMII_CARD_PORT4_PHY_ADDR);
break;
case 0x1040:
case 0x2040:
/* QSGMII on lane B, MAC 6/5/10/1 */
fm_info_set_phy_address(FM1_DTSEC6,
QSGMII_CARD_PORT1_PHY_ADDR_S2);
fm_info_set_phy_address(FM1_DTSEC5,
QSGMII_CARD_PORT2_PHY_ADDR_S2);
fm_info_set_phy_address(FM1_DTSEC10,
QSGMII_CARD_PORT3_PHY_ADDR_S2);
fm_info_set_phy_address(FM1_DTSEC1,
QSGMII_CARD_PORT4_PHY_ADDR_S2);
break;
case 0x3363:
/* SGMII on slot 1, MAC 9/10 */
fm_info_set_phy_address(FM1_DTSEC9, SGMII_CARD_PORT1_PHY_ADDR);
fm_info_set_phy_address(FM1_DTSEC10, SGMII_CARD_PORT2_PHY_ADDR);
case 0x1163:
case 0x2263:
case 0x2223:
/* SGMII on slot 1, MAC 6 */
fm_info_set_phy_address(FM1_DTSEC6, SGMII_CARD_PORT4_PHY_ADDR);
break;
default:
printf("Invalid SerDes protocol 0x%x for LS1046AQDS\n",
srds_s1);
break;
}
if (srds_s2 == 0x5a59 || srds_s2 == 0x5a06)
/* SGMII on slot 4, MAC 2 */
fm_info_set_phy_address(FM1_DTSEC2, SGMII_CARD_PORT1_PHY_ADDR);
for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
idx = i - FM1_DTSEC1;
interface = fm_info_get_enet_if(i);
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
if (interface == PHY_INTERFACE_MODE_SGMII) {
if (i == FM1_DTSEC5) {
/* route lane 2 to slot1 so to have
* one sgmii riser card supports
* MAC5 and MAC6.
*/
brdcfg12 = QIXIS_READ(brdcfg[12]);
QIXIS_WRITE(brdcfg[12],
brdcfg12 | 0x80);
}
lane = serdes_get_first_lane(FSL_SRDS_1,
SGMII_FM1_DTSEC1 + idx);
} else {
/* clear the bit 7 to route lane B on slot2. */
brdcfg12 = QIXIS_READ(brdcfg[12]);
QIXIS_WRITE(brdcfg[12], brdcfg12 & 0x7f);
lane = serdes_get_first_lane(FSL_SRDS_1,
QSGMII_FM1_A);
lane_to_slot[lane] = 2;
}
if (i == FM1_DTSEC2)
lane = 5;
if (lane < 0)
break;
slot = lane_to_slot[lane];
debug("FM1@DTSEC%u expects SGMII in slot %u\n",
idx + 1, slot);
if (QIXIS_READ(present2) & (1 << (slot - 1)))
fm_disable_port(i);
switch (slot) {
case 1:
mdio_mux[i] = EMI1_SLOT1;
fm_info_set_mdio(i, mii_dev_for_muxval(
mdio_mux[i]));
break;
case 2:
mdio_mux[i] = EMI1_SLOT2;
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;
default:
break;
}
break;
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_TXID:
if (i == FM1_DTSEC3)
mdio_mux[i] = EMI1_RGMII1;
else if (i == FM1_DTSEC4)
mdio_mux[i] = EMI1_RGMII2;
fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
break;
default:
break;
}
}
cpu_eth_init(bis);
#endif /* CONFIG_FMAN_ENET */
return pci_eth_init(bis);
}
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