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u-boot/board/freescale/t1040qds/eth.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

590 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Freescale Semiconductor, Inc.
*/
/*
* 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 <fsl_dtsec.h>
#include <vsc9953.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;
strcpy(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[6] = 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[2] = 6;
lane_to_slot[3] = 5;
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]);
if (FM1_DTSEC5 == i)
fm_info_set_phy_address(i, riser_phy_addr[3]);
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;
#ifdef CONFIG_VSC9953
int lane;
int phy_addr;
phy_interface_t phy_int;
struct mii_dev *bus;
#endif
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:
fm_info_set_mdio(i, NULL);
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;
}
}
#ifdef CONFIG_VSC9953
for (i = 0; i < VSC9953_MAX_PORTS; i++) {
lane = -1;
phy_addr = 0;
phy_int = PHY_INTERFACE_MODE_NONE;
switch (i) {
case 0:
case 1:
case 2:
case 3:
lane = serdes_get_first_lane(FSL_SRDS_1, QSGMII_SW1_A);
/* PHYs connected over QSGMII */
if (lane >= 0) {
phy_addr = CONFIG_SYS_FM1_QSGMII21_PHY_ADDR +
i;
phy_int = PHY_INTERFACE_MODE_QSGMII;
break;
}
lane = serdes_get_first_lane(FSL_SRDS_1,
SGMII_SW1_MAC1 + i);
if (lane < 0)
break;
/* PHYs connected over QSGMII */
if (i != 3 || lane_to_slot[lane] == 7)
phy_addr = CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR
+ i;
else
phy_addr = CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR;
phy_int = PHY_INTERFACE_MODE_SGMII;
break;
case 4:
case 5:
case 6:
case 7:
lane = serdes_get_first_lane(FSL_SRDS_1, QSGMII_SW1_B);
/* PHYs connected over QSGMII */
if (lane >= 0) {
phy_addr = CONFIG_SYS_FM1_QSGMII11_PHY_ADDR +
i - 4;
phy_int = PHY_INTERFACE_MODE_QSGMII;
break;
}
lane = serdes_get_first_lane(FSL_SRDS_1,
SGMII_SW1_MAC1 + i);
/* PHYs connected over SGMII */
if (lane >= 0) {
phy_addr = CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR
+ i - 3;
phy_int = PHY_INTERFACE_MODE_SGMII;
}
break;
case 8:
if (serdes_get_first_lane(FSL_SRDS_1,
SGMII_FM1_DTSEC1) < 0)
/* FM1@DTSEC1 is connected to SW1@PORT8 */
vsc9953_port_enable(i);
break;
case 9:
if (serdes_get_first_lane(FSL_SRDS_1,
SGMII_FM1_DTSEC2) < 0) {
/* Enable L2 On MAC2 using SCFG */
struct ccsr_scfg *scfg = (struct ccsr_scfg *)
CONFIG_SYS_MPC85xx_SCFG;
out_be32(&scfg->esgmiiselcr,
in_be32(&scfg->esgmiiselcr) |
(0x80000000));
vsc9953_port_enable(i);
}
break;
}
if (lane >= 0) {
bus = mii_dev_for_muxval(lane_to_slot[lane]);
vsc9953_port_info_set_mdio(i, bus);
vsc9953_port_enable(i);
}
vsc9953_port_info_set_phy_address(i, phy_addr);
vsc9953_port_info_set_phy_int(i, phy_int);
}
#endif
cpu_eth_init(bis);
#endif
return pci_eth_init(bis);
}
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