mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
7093f9d80c
All path route on various SoCs all would be managed in common function mtk_setup_hw_path that is determined by the both applied devicetree regarding the path between GMAC and the target PHY or switch by the capability of target SoC in the runtime. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
324 lines
6.9 KiB
C
324 lines
6.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// Copyright (c) 2018-2019 MediaTek Inc.
|
|
|
|
/* A library for configuring path from GMAC/GDM to target PHY
|
|
*
|
|
* Author: Sean Wang <sean.wang@mediatek.com>
|
|
*
|
|
*/
|
|
|
|
#include <linux/phy.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#include "mtk_eth_soc.h"
|
|
|
|
struct mtk_eth_muxc {
|
|
int (*set_path)(struct mtk_eth *eth, int path);
|
|
};
|
|
|
|
static const char * const mtk_eth_mux_name[] = {
|
|
"mux_gdm1_to_gmac1_esw", "mux_gmac2_gmac0_to_gephy",
|
|
"mux_u3_gmac2_to_qphy", "mux_gmac1_gmac2_to_sgmii_rgmii",
|
|
"mux_gmac12_to_gephy_sgmii",
|
|
};
|
|
|
|
static const char * const mtk_eth_path_name[] = {
|
|
"gmac1_rgmii", "gmac1_trgmii", "gmac1_sgmii", "gmac2_rgmii",
|
|
"gmac2_sgmii", "gmac2_gephy", "gdm1_esw",
|
|
};
|
|
|
|
static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, int path)
|
|
{
|
|
bool updated = true;
|
|
u32 val, mask, set;
|
|
|
|
switch (path) {
|
|
case MTK_ETH_PATH_GMAC1_SGMII:
|
|
mask = ~(u32)MTK_MUX_TO_ESW;
|
|
set = 0;
|
|
break;
|
|
case MTK_ETH_PATH_GDM1_ESW:
|
|
mask = ~(u32)MTK_MUX_TO_ESW;
|
|
set = MTK_MUX_TO_ESW;
|
|
break;
|
|
default:
|
|
updated = false;
|
|
break;
|
|
};
|
|
|
|
if (updated) {
|
|
val = mtk_r32(eth, MTK_MAC_MISC);
|
|
val = (val & mask) | set;
|
|
mtk_w32(eth, val, MTK_MAC_MISC);
|
|
}
|
|
|
|
dev_dbg(eth->dev, "path %s in %s updated = %d\n",
|
|
mtk_eth_path_name[path], __func__, updated);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_mux_gmac2_gmac0_to_gephy(struct mtk_eth *eth, int path)
|
|
{
|
|
unsigned int val = 0;
|
|
bool updated = true;
|
|
|
|
switch (path) {
|
|
case MTK_ETH_PATH_GMAC2_GEPHY:
|
|
val = ~(u32)GEPHY_MAC_SEL;
|
|
break;
|
|
default:
|
|
updated = false;
|
|
break;
|
|
}
|
|
|
|
if (updated)
|
|
regmap_update_bits(eth->infra, INFRA_MISC2, GEPHY_MAC_SEL, val);
|
|
|
|
dev_dbg(eth->dev, "path %s in %s updated = %d\n",
|
|
mtk_eth_path_name[path], __func__, updated);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_mux_u3_gmac2_to_qphy(struct mtk_eth *eth, int path)
|
|
{
|
|
unsigned int val = 0;
|
|
bool updated = true;
|
|
|
|
switch (path) {
|
|
case MTK_ETH_PATH_GMAC2_SGMII:
|
|
val = CO_QPHY_SEL;
|
|
break;
|
|
default:
|
|
updated = false;
|
|
break;
|
|
}
|
|
|
|
if (updated)
|
|
regmap_update_bits(eth->infra, INFRA_MISC2, CO_QPHY_SEL, val);
|
|
|
|
dev_dbg(eth->dev, "path %s in %s updated = %d\n",
|
|
mtk_eth_path_name[path], __func__, updated);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_mux_gmac1_gmac2_to_sgmii_rgmii(struct mtk_eth *eth, int path)
|
|
{
|
|
unsigned int val = 0;
|
|
bool updated = true;
|
|
|
|
switch (path) {
|
|
case MTK_ETH_PATH_GMAC1_SGMII:
|
|
val = SYSCFG0_SGMII_GMAC1;
|
|
break;
|
|
case MTK_ETH_PATH_GMAC2_SGMII:
|
|
val = SYSCFG0_SGMII_GMAC2;
|
|
break;
|
|
case MTK_ETH_PATH_GMAC1_RGMII:
|
|
case MTK_ETH_PATH_GMAC2_RGMII:
|
|
regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val);
|
|
val &= SYSCFG0_SGMII_MASK;
|
|
|
|
if ((path == MTK_GMAC1_RGMII && val == SYSCFG0_SGMII_GMAC1) ||
|
|
(path == MTK_GMAC2_RGMII && val == SYSCFG0_SGMII_GMAC2))
|
|
val = 0;
|
|
else
|
|
updated = false;
|
|
break;
|
|
default:
|
|
updated = false;
|
|
break;
|
|
};
|
|
|
|
if (updated)
|
|
regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0,
|
|
SYSCFG0_SGMII_MASK, val);
|
|
|
|
dev_dbg(eth->dev, "path %s in %s updated = %d\n",
|
|
mtk_eth_path_name[path], __func__, updated);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_mux_gmac12_to_gephy_sgmii(struct mtk_eth *eth, int path)
|
|
{
|
|
unsigned int val = 0;
|
|
bool updated = true;
|
|
|
|
regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val);
|
|
|
|
switch (path) {
|
|
case MTK_ETH_PATH_GMAC1_SGMII:
|
|
val |= SYSCFG0_SGMII_GMAC1_V2;
|
|
break;
|
|
case MTK_ETH_PATH_GMAC2_GEPHY:
|
|
val &= ~(u32)SYSCFG0_SGMII_GMAC2_V2;
|
|
break;
|
|
case MTK_ETH_PATH_GMAC2_SGMII:
|
|
val |= SYSCFG0_SGMII_GMAC2_V2;
|
|
break;
|
|
default:
|
|
updated = false;
|
|
};
|
|
|
|
if (updated)
|
|
regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0,
|
|
SYSCFG0_SGMII_MASK, val);
|
|
|
|
dev_dbg(eth->dev, "path %s in %s updated = %d\n",
|
|
mtk_eth_path_name[path], __func__, updated);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct mtk_eth_muxc mtk_eth_muxc[] = {
|
|
{ .set_path = set_mux_gdm1_to_gmac1_esw, },
|
|
{ .set_path = set_mux_gmac2_gmac0_to_gephy, },
|
|
{ .set_path = set_mux_u3_gmac2_to_qphy, },
|
|
{ .set_path = set_mux_gmac1_gmac2_to_sgmii_rgmii, },
|
|
{ .set_path = set_mux_gmac12_to_gephy_sgmii, }
|
|
};
|
|
|
|
static int mtk_eth_mux_setup(struct mtk_eth *eth, int path)
|
|
{
|
|
int i, err = 0;
|
|
|
|
if (!MTK_HAS_CAPS(eth->soc->caps, MTK_PATH_BIT(path))) {
|
|
dev_err(eth->dev, "path %s isn't support on the SoC\n",
|
|
mtk_eth_path_name[path]);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!MTK_HAS_CAPS(eth->soc->caps, MTK_MUX))
|
|
return 0;
|
|
|
|
/* Setup MUX in path fabric */
|
|
for (i = 0; i < MTK_ETH_MUX_MAX; i++) {
|
|
if (MTK_HAS_CAPS(eth->soc->caps, MTK_MUX_BIT(i))) {
|
|
err = mtk_eth_muxc[i].set_path(eth, path);
|
|
if (err)
|
|
goto out;
|
|
} else {
|
|
dev_dbg(eth->dev, "mux %s isn't present on the SoC\n",
|
|
mtk_eth_mux_name[i]);
|
|
}
|
|
}
|
|
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id)
|
|
{
|
|
unsigned int val = 0;
|
|
int sid, err, path;
|
|
|
|
path = (mac_id == 0) ? MTK_ETH_PATH_GMAC1_SGMII :
|
|
MTK_ETH_PATH_GMAC2_SGMII;
|
|
|
|
/* Setup proper MUXes along the path */
|
|
err = mtk_eth_mux_setup(eth, path);
|
|
if (err)
|
|
return err;
|
|
|
|
/* The path GMAC to SGMII will be enabled once the SGMIISYS is being
|
|
* setup done.
|
|
*/
|
|
regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val);
|
|
|
|
regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0,
|
|
SYSCFG0_SGMII_MASK, ~(u32)SYSCFG0_SGMII_MASK);
|
|
|
|
/* Decide how GMAC and SGMIISYS be mapped */
|
|
sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? 0 : mac_id;
|
|
|
|
/* Setup SGMIISYS with the determined property */
|
|
if (MTK_HAS_FLAGS(eth->sgmii->flags[sid], MTK_SGMII_PHYSPEED_AN))
|
|
err = mtk_sgmii_setup_mode_an(eth->sgmii, sid);
|
|
else
|
|
err = mtk_sgmii_setup_mode_force(eth->sgmii, sid);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0,
|
|
SYSCFG0_SGMII_MASK, val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id)
|
|
{
|
|
int err, path = 0;
|
|
|
|
if (mac_id == 1)
|
|
path = MTK_ETH_PATH_GMAC2_GEPHY;
|
|
|
|
if (!path)
|
|
return -EINVAL;
|
|
|
|
/* Setup proper MUXes along the path */
|
|
err = mtk_eth_mux_setup(eth, path);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id)
|
|
{
|
|
int err, path;
|
|
|
|
path = (mac_id == 0) ? MTK_ETH_PATH_GMAC1_RGMII :
|
|
MTK_ETH_PATH_GMAC2_RGMII;
|
|
|
|
/* Setup proper MUXes along the path */
|
|
err = mtk_eth_mux_setup(eth, path);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mtk_setup_hw_path(struct mtk_eth *eth, int mac_id, int phymode)
|
|
{
|
|
int err;
|
|
|
|
switch (phymode) {
|
|
case PHY_INTERFACE_MODE_TRGMII:
|
|
case PHY_INTERFACE_MODE_RGMII_TXID:
|
|
case PHY_INTERFACE_MODE_RGMII_RXID:
|
|
case PHY_INTERFACE_MODE_RGMII_ID:
|
|
case PHY_INTERFACE_MODE_RGMII:
|
|
case PHY_INTERFACE_MODE_MII:
|
|
case PHY_INTERFACE_MODE_REVMII:
|
|
case PHY_INTERFACE_MODE_RMII:
|
|
if (MTK_HAS_CAPS(eth->soc->caps, MTK_RGMII)) {
|
|
err = mtk_gmac_rgmii_path_setup(eth, mac_id);
|
|
if (err)
|
|
return err;
|
|
}
|
|
break;
|
|
case PHY_INTERFACE_MODE_SGMII:
|
|
if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) {
|
|
err = mtk_gmac_sgmii_path_setup(eth, mac_id);
|
|
if (err)
|
|
return err;
|
|
}
|
|
break;
|
|
case PHY_INTERFACE_MODE_GMII:
|
|
if (MTK_HAS_CAPS(eth->soc->caps, MTK_GEPHY)) {
|
|
err = mtk_gmac_gephy_path_setup(eth, mac_id);
|
|
if (err)
|
|
return err;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|