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Message-Id: <20211218214954.109755-7-colin.foster@in-advantage.com>
Date: Sat, 18 Dec 2021 13:49:47 -0800
From: Colin Foster <colin.foster@...advantage.com>
To: linux-gpio@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Linus Walleij <linus.walleij@...aro.org>,
Russell King <linux@...linux.org.uk>,
Heiner Kallweit <hkallweit1@...il.com>,
Jakub Kicinski <kuba@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Florian Fainelli <f.fainelli@...il.com>,
Vivien Didelot <vivien.didelot@...il.com>,
Andrew Lunn <andrew@...n.ch>, UNGLinuxDriver@...rochip.com,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Claudiu Manoil <claudiu.manoil@....com>,
Vladimir Oltean <vladimir.oltean@....com>,
Lee Jones <lee.jones@...aro.org>
Subject: [RFC v5 net-next 06/13] net: dsa: ocelot: add external ocelot switch control
Add control of an external VSC7512 chip by way of the ocelot-mfd interface.
Signed-off-by: Colin Foster <colin.foster@...advantage.com>
---
drivers/net/dsa/ocelot/Kconfig | 15 +
drivers/net/dsa/ocelot/Makefile | 5 +
drivers/net/dsa/ocelot/ocelot_ext.c | 644 ++++++++++++++++++++++++++++
include/soc/mscc/ocelot.h | 2 +
4 files changed, 666 insertions(+)
create mode 100644 drivers/net/dsa/ocelot/ocelot_ext.c
diff --git a/drivers/net/dsa/ocelot/Kconfig b/drivers/net/dsa/ocelot/Kconfig
index 220b0b027b55..60a930f48014 100644
--- a/drivers/net/dsa/ocelot/Kconfig
+++ b/drivers/net/dsa/ocelot/Kconfig
@@ -1,4 +1,19 @@
# SPDX-License-Identifier: GPL-2.0-only
+config NET_DSA_MSCC_OCELOT_EXT
+ tristate "Ocelot External Ethernet switch support"
+ depends on NET_DSA && SPI
+ depends on NET_VENDOR_MICROSEMI
+ select MDIO_MSCC_MIIM
+ select MFD_OCELOT_CORE
+ select MFD_OCELOT_SPI
+ select MSCC_OCELOT_SWITCH_LIB
+ select NET_DSA_TAG_OCELOT_8021Q
+ select NET_DSA_TAG_OCELOT
+ help
+ This driver supports the VSC7511, VSC7512, VSC7513 and VSC7514 chips
+ when controlled through SPI. It can be used with the Microsemi dev
+ boards and an external CPU or custom hardware.
+
config NET_DSA_MSCC_FELIX
tristate "Ocelot / Felix Ethernet switch support"
depends on NET_DSA && PCI
diff --git a/drivers/net/dsa/ocelot/Makefile b/drivers/net/dsa/ocelot/Makefile
index f6dd131e7491..d7f3f5a4461c 100644
--- a/drivers/net/dsa/ocelot/Makefile
+++ b/drivers/net/dsa/ocelot/Makefile
@@ -1,11 +1,16 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_NET_DSA_MSCC_FELIX) += mscc_felix.o
+obj-$(CONFIG_NET_DSA_MSCC_OCELOT_EXT) += mscc_ocelot_ext.o
obj-$(CONFIG_NET_DSA_MSCC_SEVILLE) += mscc_seville.o
mscc_felix-objs := \
felix.o \
felix_vsc9959.o
+mscc_ocelot_ext-objs := \
+ felix.o \
+ ocelot_ext.o
+
mscc_seville-objs := \
felix.o \
seville_vsc9953.o
diff --git a/drivers/net/dsa/ocelot/ocelot_ext.c b/drivers/net/dsa/ocelot/ocelot_ext.c
new file mode 100644
index 000000000000..e35f21ba5dc3
--- /dev/null
+++ b/drivers/net/dsa/ocelot/ocelot_ext.c
@@ -0,0 +1,644 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2021 Innovative Advantage Inc.
+ */
+
+#include <asm/byteorder.h>
+#include <linux/iopoll.h>
+#include <linux/kconfig.h>
+#include <linux/mdio/mdio-mscc-miim.h>
+#include <linux/of_mdio.h>
+#include <linux/phylink.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <soc/mscc/ocelot_ana.h>
+#include <soc/mscc/ocelot_dev.h>
+#include <soc/mscc/ocelot_qsys.h>
+#include <soc/mscc/ocelot_vcap.h>
+#include <soc/mscc/ocelot_ptp.h>
+#include <soc/mscc/ocelot_sys.h>
+#include <soc/mscc/ocelot.h>
+#include <soc/mscc/vsc7514_regs.h>
+#include "felix.h"
+
+struct ocelot_ext_data {
+ struct felix felix;
+};
+
+static const u32 vsc7512_gcb_regmap[] = {
+ REG(GCB_SOFT_RST, 0x0008),
+ REG(GCB_MIIM_MII_STATUS, 0x009c),
+ REG(GCB_PHY_PHY_CFG, 0x00f0),
+ REG(GCB_PHY_PHY_STAT, 0x00f4),
+};
+
+static const u32 *vsc7512_regmap[TARGET_MAX] = {
+ [ANA] = vsc7514_ana_regmap,
+ [QS] = vsc7514_qs_regmap,
+ [QSYS] = vsc7514_qsys_regmap,
+ [REW] = vsc7514_rew_regmap,
+ [SYS] = vsc7514_sys_regmap,
+ [S0] = vsc7514_vcap_regmap,
+ [S1] = vsc7514_vcap_regmap,
+ [S2] = vsc7514_vcap_regmap,
+ [PTP] = vsc7514_ptp_regmap,
+ [GCB] = vsc7512_gcb_regmap,
+ [DEV_GMII] = vsc7514_dev_gmii_regmap,
+};
+
+#define VSC7512_BYTE_ORDER_LE 0x00000000
+#define VSC7512_BYTE_ORDER_BE 0x81818181
+#define VSC7512_BIT_ORDER_MSB 0x00000000
+#define VSC7512_BIT_ORDER_LSB 0x42424242
+
+static void ocelot_ext_reset_phys(struct ocelot *ocelot)
+{
+ ocelot_write(ocelot, 0, GCB_PHY_PHY_CFG);
+ ocelot_write(ocelot, 0x1ff, GCB_PHY_PHY_CFG);
+ mdelay(500);
+}
+
+static int ocelot_ext_reset(struct ocelot *ocelot)
+{
+ struct felix *felix = ocelot_to_felix(ocelot);
+ struct device *dev = ocelot->dev;
+ struct device_node *mdio_node;
+ int retries = 100;
+ int err, val;
+
+ ocelot_ext_reset_phys(ocelot);
+
+ mdio_node = of_get_child_by_name(dev->of_node, "mdio");
+ if (!mdio_node)
+ dev_info(ocelot->dev,
+ "mdio children not found in device tree\n");
+
+ err = of_mdiobus_register(felix->imdio, mdio_node);
+ if (err) {
+ dev_err(ocelot->dev, "error registering MDIO bus\n");
+ return err;
+ }
+
+ felix->ds->slave_mii_bus = felix->imdio;
+
+ /* We might need to reset the switch core here, if that is possible */
+ err = regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], 1);
+ if (err)
+ return err;
+
+ err = regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1);
+ if (err)
+ return err;
+
+ do {
+ msleep(1);
+ regmap_field_read(ocelot->regfields[SYS_RESET_CFG_MEM_INIT],
+ &val);
+ } while (val && --retries);
+
+ if (!retries)
+ return -ETIMEDOUT;
+
+ err = regmap_field_write(ocelot->regfields[SYS_RESET_CFG_CORE_ENA], 1);
+
+ return err;
+}
+
+static u32 ocelot_offset_from_reg_base(struct ocelot *ocelot, u32 target,
+ u32 reg)
+{
+ return ocelot->map[target][reg & REG_MASK];
+}
+
+static const struct ocelot_ops vsc7512_ops = {
+ .reset = ocelot_ext_reset,
+ .wm_enc = ocelot_wm_enc,
+ .wm_dec = ocelot_wm_dec,
+ .wm_stat = ocelot_wm_stat,
+ .port_to_netdev = felix_port_to_netdev,
+ .netdev_to_port = felix_netdev_to_port,
+};
+
+static const struct resource vsc7512_target_io_res[TARGET_MAX] = {
+ [ANA] = {
+ .start = 0x71880000,
+ .end = 0x7188ffff,
+ .name = "ana",
+ },
+ [QS] = {
+ .start = 0x71080000,
+ .end = 0x710800ff,
+ .name = "qs",
+ },
+ [QSYS] = {
+ .start = 0x71800000,
+ .end = 0x719fffff,
+ .name = "qsys",
+ },
+ [REW] = {
+ .start = 0x71030000,
+ .end = 0x7103ffff,
+ .name = "rew",
+ },
+ [SYS] = {
+ .start = 0x71010000,
+ .end = 0x7101ffff,
+ .name = "sys",
+ },
+ [S0] = {
+ .start = 0x71040000,
+ .end = 0x710403ff,
+ .name = "s0",
+ },
+ [S1] = {
+ .start = 0x71050000,
+ .end = 0x710503ff,
+ .name = "s1",
+ },
+ [S2] = {
+ .start = 0x71060000,
+ .end = 0x710603ff,
+ .name = "s2",
+ },
+ [GCB] = {
+ .start = 0x71070000,
+ .end = 0x7107022b,
+ .name = "devcpu_gcb",
+ },
+};
+
+static const struct resource vsc7512_port_io_res[] = {
+ {
+ .start = 0x711e0000,
+ .end = 0x711effff,
+ .name = "port0",
+ },
+ {
+ .start = 0x711f0000,
+ .end = 0x711fffff,
+ .name = "port1",
+ },
+ {
+ .start = 0x71200000,
+ .end = 0x7120ffff,
+ .name = "port2",
+ },
+ {
+ .start = 0x71210000,
+ .end = 0x7121ffff,
+ .name = "port3",
+ },
+ {
+ .start = 0x71220000,
+ .end = 0x7122ffff,
+ .name = "port4",
+ },
+ {
+ .start = 0x71230000,
+ .end = 0x7123ffff,
+ .name = "port5",
+ },
+ {
+ .start = 0x71240000,
+ .end = 0x7124ffff,
+ .name = "port6",
+ },
+ {
+ .start = 0x71250000,
+ .end = 0x7125ffff,
+ .name = "port7",
+ },
+ {
+ .start = 0x71260000,
+ .end = 0x7126ffff,
+ .name = "port8",
+ },
+ {
+ .start = 0x71270000,
+ .end = 0x7127ffff,
+ .name = "port9",
+ },
+ {
+ .start = 0x71280000,
+ .end = 0x7128ffff,
+ .name = "port10",
+ },
+};
+
+static const struct reg_field vsc7512_regfields[REGFIELD_MAX] = {
+ [ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 11, 11),
+ [ANA_ADVLEARN_LEARN_MIRROR] = REG_FIELD(ANA_ADVLEARN, 0, 10),
+ [ANA_ANEVENTS_MSTI_DROP] = REG_FIELD(ANA_ANEVENTS, 27, 27),
+ [ANA_ANEVENTS_ACLKILL] = REG_FIELD(ANA_ANEVENTS, 26, 26),
+ [ANA_ANEVENTS_ACLUSED] = REG_FIELD(ANA_ANEVENTS, 25, 25),
+ [ANA_ANEVENTS_AUTOAGE] = REG_FIELD(ANA_ANEVENTS, 24, 24),
+ [ANA_ANEVENTS_VS2TTL1] = REG_FIELD(ANA_ANEVENTS, 23, 23),
+ [ANA_ANEVENTS_STORM_DROP] = REG_FIELD(ANA_ANEVENTS, 22, 22),
+ [ANA_ANEVENTS_LEARN_DROP] = REG_FIELD(ANA_ANEVENTS, 21, 21),
+ [ANA_ANEVENTS_AGED_ENTRY] = REG_FIELD(ANA_ANEVENTS, 20, 20),
+ [ANA_ANEVENTS_CPU_LEARN_FAILED] = REG_FIELD(ANA_ANEVENTS, 19, 19),
+ [ANA_ANEVENTS_AUTO_LEARN_FAILED] = REG_FIELD(ANA_ANEVENTS, 18, 18),
+ [ANA_ANEVENTS_LEARN_REMOVE] = REG_FIELD(ANA_ANEVENTS, 17, 17),
+ [ANA_ANEVENTS_AUTO_LEARNED] = REG_FIELD(ANA_ANEVENTS, 16, 16),
+ [ANA_ANEVENTS_AUTO_MOVED] = REG_FIELD(ANA_ANEVENTS, 15, 15),
+ [ANA_ANEVENTS_DROPPED] = REG_FIELD(ANA_ANEVENTS, 14, 14),
+ [ANA_ANEVENTS_CLASSIFIED_DROP] = REG_FIELD(ANA_ANEVENTS, 13, 13),
+ [ANA_ANEVENTS_CLASSIFIED_COPY] = REG_FIELD(ANA_ANEVENTS, 12, 12),
+ [ANA_ANEVENTS_VLAN_DISCARD] = REG_FIELD(ANA_ANEVENTS, 11, 11),
+ [ANA_ANEVENTS_FWD_DISCARD] = REG_FIELD(ANA_ANEVENTS, 10, 10),
+ [ANA_ANEVENTS_MULTICAST_FLOOD] = REG_FIELD(ANA_ANEVENTS, 9, 9),
+ [ANA_ANEVENTS_UNICAST_FLOOD] = REG_FIELD(ANA_ANEVENTS, 8, 8),
+ [ANA_ANEVENTS_DEST_KNOWN] = REG_FIELD(ANA_ANEVENTS, 7, 7),
+ [ANA_ANEVENTS_BUCKET3_MATCH] = REG_FIELD(ANA_ANEVENTS, 6, 6),
+ [ANA_ANEVENTS_BUCKET2_MATCH] = REG_FIELD(ANA_ANEVENTS, 5, 5),
+ [ANA_ANEVENTS_BUCKET1_MATCH] = REG_FIELD(ANA_ANEVENTS, 4, 4),
+ [ANA_ANEVENTS_BUCKET0_MATCH] = REG_FIELD(ANA_ANEVENTS, 3, 3),
+ [ANA_ANEVENTS_CPU_OPERATION] = REG_FIELD(ANA_ANEVENTS, 2, 2),
+ [ANA_ANEVENTS_DMAC_LOOKUP] = REG_FIELD(ANA_ANEVENTS, 1, 1),
+ [ANA_ANEVENTS_SMAC_LOOKUP] = REG_FIELD(ANA_ANEVENTS, 0, 0),
+ [ANA_TABLES_MACACCESS_B_DOM] = REG_FIELD(ANA_TABLES_MACACCESS, 18, 18),
+ [ANA_TABLES_MACTINDX_BUCKET] = REG_FIELD(ANA_TABLES_MACTINDX, 10, 11),
+ [ANA_TABLES_MACTINDX_M_INDEX] = REG_FIELD(ANA_TABLES_MACTINDX, 0, 9),
+ [GCB_SOFT_RST_SWC_RST] = REG_FIELD(GCB_SOFT_RST, 1, 1),
+ [QSYS_TIMED_FRAME_ENTRY_TFRM_VLD] = REG_FIELD(QSYS_TIMED_FRAME_ENTRY, 20, 20),
+ [QSYS_TIMED_FRAME_ENTRY_TFRM_FP] = REG_FIELD(QSYS_TIMED_FRAME_ENTRY, 8, 19),
+ [QSYS_TIMED_FRAME_ENTRY_TFRM_PORTNO] = REG_FIELD(QSYS_TIMED_FRAME_ENTRY, 4, 7),
+ [QSYS_TIMED_FRAME_ENTRY_TFRM_TM_SEL] = REG_FIELD(QSYS_TIMED_FRAME_ENTRY, 1, 3),
+ [QSYS_TIMED_FRAME_ENTRY_TFRM_TM_T] = REG_FIELD(QSYS_TIMED_FRAME_ENTRY, 0, 0),
+ [SYS_RESET_CFG_CORE_ENA] = REG_FIELD(SYS_RESET_CFG, 2, 2),
+ [SYS_RESET_CFG_MEM_ENA] = REG_FIELD(SYS_RESET_CFG, 1, 1),
+ [SYS_RESET_CFG_MEM_INIT] = REG_FIELD(SYS_RESET_CFG, 0, 0),
+ /* Replicated per number of ports (12), register size 4 per port */
+ [QSYS_SWITCH_PORT_MODE_PORT_ENA] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 14, 14, 12, 4),
+ [QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 11, 13, 12, 4),
+ [QSYS_SWITCH_PORT_MODE_YEL_RSRVD] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 10, 10, 12, 4),
+ [QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 9, 9, 12, 4),
+ [QSYS_SWITCH_PORT_MODE_TX_PFC_ENA] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 1, 8, 12, 4),
+ [QSYS_SWITCH_PORT_MODE_TX_PFC_MODE] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 0, 0, 12, 4),
+ [SYS_PORT_MODE_DATA_WO_TS] = REG_FIELD_ID(SYS_PORT_MODE, 5, 6, 12, 4),
+ [SYS_PORT_MODE_INCL_INJ_HDR] = REG_FIELD_ID(SYS_PORT_MODE, 3, 4, 12, 4),
+ [SYS_PORT_MODE_INCL_XTR_HDR] = REG_FIELD_ID(SYS_PORT_MODE, 1, 2, 12, 4),
+ [SYS_PORT_MODE_INCL_HDR_ERR] = REG_FIELD_ID(SYS_PORT_MODE, 0, 0, 12, 4),
+ [SYS_PAUSE_CFG_PAUSE_START] = REG_FIELD_ID(SYS_PAUSE_CFG, 10, 18, 12, 4),
+ [SYS_PAUSE_CFG_PAUSE_STOP] = REG_FIELD_ID(SYS_PAUSE_CFG, 1, 9, 12, 4),
+ [SYS_PAUSE_CFG_PAUSE_ENA] = REG_FIELD_ID(SYS_PAUSE_CFG, 0, 1, 12, 4),
+};
+
+static const struct ocelot_stat_layout vsc7512_stats_layout[] = {
+ { .offset = 0x00, .name = "rx_octets", },
+ { .offset = 0x01, .name = "rx_unicast", },
+ { .offset = 0x02, .name = "rx_multicast", },
+ { .offset = 0x03, .name = "rx_broadcast", },
+ { .offset = 0x04, .name = "rx_shorts", },
+ { .offset = 0x05, .name = "rx_fragments", },
+ { .offset = 0x06, .name = "rx_jabbers", },
+ { .offset = 0x07, .name = "rx_crc_align_errs", },
+ { .offset = 0x08, .name = "rx_sym_errs", },
+ { .offset = 0x09, .name = "rx_frames_below_65_octets", },
+ { .offset = 0x0A, .name = "rx_frames_65_to_127_octets", },
+ { .offset = 0x0B, .name = "rx_frames_128_to_255_octets", },
+ { .offset = 0x0C, .name = "rx_frames_256_to_511_octets", },
+ { .offset = 0x0D, .name = "rx_frames_512_to_1023_octets", },
+ { .offset = 0x0E, .name = "rx_frames_1024_to_1526_octets", },
+ { .offset = 0x0F, .name = "rx_frames_over_1526_octets", },
+ { .offset = 0x10, .name = "rx_pause", },
+ { .offset = 0x11, .name = "rx_control", },
+ { .offset = 0x12, .name = "rx_longs", },
+ { .offset = 0x13, .name = "rx_classified_drops", },
+ { .offset = 0x14, .name = "rx_red_prio_0", },
+ { .offset = 0x15, .name = "rx_red_prio_1", },
+ { .offset = 0x16, .name = "rx_red_prio_2", },
+ { .offset = 0x17, .name = "rx_red_prio_3", },
+ { .offset = 0x18, .name = "rx_red_prio_4", },
+ { .offset = 0x19, .name = "rx_red_prio_5", },
+ { .offset = 0x1A, .name = "rx_red_prio_6", },
+ { .offset = 0x1B, .name = "rx_red_prio_7", },
+ { .offset = 0x1C, .name = "rx_yellow_prio_0", },
+ { .offset = 0x1D, .name = "rx_yellow_prio_1", },
+ { .offset = 0x1E, .name = "rx_yellow_prio_2", },
+ { .offset = 0x1F, .name = "rx_yellow_prio_3", },
+ { .offset = 0x20, .name = "rx_yellow_prio_4", },
+ { .offset = 0x21, .name = "rx_yellow_prio_5", },
+ { .offset = 0x22, .name = "rx_yellow_prio_6", },
+ { .offset = 0x23, .name = "rx_yellow_prio_7", },
+ { .offset = 0x24, .name = "rx_green_prio_0", },
+ { .offset = 0x25, .name = "rx_green_prio_1", },
+ { .offset = 0x26, .name = "rx_green_prio_2", },
+ { .offset = 0x27, .name = "rx_green_prio_3", },
+ { .offset = 0x28, .name = "rx_green_prio_4", },
+ { .offset = 0x29, .name = "rx_green_prio_5", },
+ { .offset = 0x2A, .name = "rx_green_prio_6", },
+ { .offset = 0x2B, .name = "rx_green_prio_7", },
+ { .offset = 0x40, .name = "tx_octets", },
+ { .offset = 0x41, .name = "tx_unicast", },
+ { .offset = 0x42, .name = "tx_multicast", },
+ { .offset = 0x43, .name = "tx_broadcast", },
+ { .offset = 0x44, .name = "tx_collision", },
+ { .offset = 0x45, .name = "tx_drops", },
+ { .offset = 0x46, .name = "tx_pause", },
+ { .offset = 0x47, .name = "tx_frames_below_65_octets", },
+ { .offset = 0x48, .name = "tx_frames_65_to_127_octets", },
+ { .offset = 0x49, .name = "tx_frames_128_255_octets", },
+ { .offset = 0x4A, .name = "tx_frames_256_511_octets", },
+ { .offset = 0x4B, .name = "tx_frames_512_1023_octets", },
+ { .offset = 0x4C, .name = "tx_frames_1024_1526_octets", },
+ { .offset = 0x4D, .name = "tx_frames_over_1526_octets", },
+ { .offset = 0x4E, .name = "tx_yellow_prio_0", },
+ { .offset = 0x4F, .name = "tx_yellow_prio_1", },
+ { .offset = 0x50, .name = "tx_yellow_prio_2", },
+ { .offset = 0x51, .name = "tx_yellow_prio_3", },
+ { .offset = 0x52, .name = "tx_yellow_prio_4", },
+ { .offset = 0x53, .name = "tx_yellow_prio_5", },
+ { .offset = 0x54, .name = "tx_yellow_prio_6", },
+ { .offset = 0x55, .name = "tx_yellow_prio_7", },
+ { .offset = 0x56, .name = "tx_green_prio_0", },
+ { .offset = 0x57, .name = "tx_green_prio_1", },
+ { .offset = 0x58, .name = "tx_green_prio_2", },
+ { .offset = 0x59, .name = "tx_green_prio_3", },
+ { .offset = 0x5A, .name = "tx_green_prio_4", },
+ { .offset = 0x5B, .name = "tx_green_prio_5", },
+ { .offset = 0x5C, .name = "tx_green_prio_6", },
+ { .offset = 0x5D, .name = "tx_green_prio_7", },
+ { .offset = 0x5E, .name = "tx_aged", },
+ { .offset = 0x80, .name = "drop_local", },
+ { .offset = 0x81, .name = "drop_tail", },
+ { .offset = 0x82, .name = "drop_yellow_prio_0", },
+ { .offset = 0x83, .name = "drop_yellow_prio_1", },
+ { .offset = 0x84, .name = "drop_yellow_prio_2", },
+ { .offset = 0x85, .name = "drop_yellow_prio_3", },
+ { .offset = 0x86, .name = "drop_yellow_prio_4", },
+ { .offset = 0x87, .name = "drop_yellow_prio_5", },
+ { .offset = 0x88, .name = "drop_yellow_prio_6", },
+ { .offset = 0x89, .name = "drop_yellow_prio_7", },
+ { .offset = 0x8A, .name = "drop_green_prio_0", },
+ { .offset = 0x8B, .name = "drop_green_prio_1", },
+ { .offset = 0x8C, .name = "drop_green_prio_2", },
+ { .offset = 0x8D, .name = "drop_green_prio_3", },
+ { .offset = 0x8E, .name = "drop_green_prio_4", },
+ { .offset = 0x8F, .name = "drop_green_prio_5", },
+ { .offset = 0x90, .name = "drop_green_prio_6", },
+ { .offset = 0x91, .name = "drop_green_prio_7", },
+};
+
+static void vsc7512_phylink_validate(struct ocelot *ocelot, int port,
+ unsigned long *supported,
+ struct phylink_link_state *state)
+{
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
+
+ if (state->interface != PHY_INTERFACE_MODE_NA &&
+ state->interface != ocelot_port->phy_mode) {
+ bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS);
+ return;
+ }
+
+ phylink_set_port_modes(mask);
+
+ phylink_set(mask, Pause);
+ phylink_set(mask, Autoneg);
+ phylink_set(mask, Asym_Pause);
+ phylink_set(mask, 10baseT_Half);
+ phylink_set(mask, 10baseT_Full);
+ phylink_set(mask, 100baseT_Half);
+ phylink_set(mask, 100baseT_Full);
+ phylink_set(mask, 1000baseT_Half);
+ phylink_set(mask, 1000baseT_Full);
+
+ bitmap_and(supported, supported, mask, __ETHTOOL_LINK_MODE_MASK_NBITS);
+ bitmap_and(state->advertising, state->advertising, mask,
+ __ETHTOOL_LINK_MODE_MASK_NBITS);
+}
+
+static int vsc7512_prevalidate_phy_mode(struct ocelot *ocelot, int port,
+ phy_interface_t phy_mode)
+{
+ switch (phy_mode) {
+ case PHY_INTERFACE_MODE_INTERNAL:
+ if (port < 4)
+ return 0;
+ return -EOPNOTSUPP;
+ case PHY_INTERFACE_MODE_SGMII:
+ if (port < 8)
+ return 0;
+ return -EOPNOTSUPP;
+ case PHY_INTERFACE_MODE_QSGMII:
+ if (port == 7 || port == 8 || port == 10)
+ return 0;
+ return -EOPNOTSUPP;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int vsc7512_port_setup_tc(struct dsa_switch *ds, int port,
+ enum tc_setup_type type, void *type_data)
+{
+ return -EOPNOTSUPP;
+}
+
+static struct vcap_props vsc7512_vcap_props[] = {
+ [VCAP_ES0] = {
+ .action_type_width = 0,
+ .action_table = {
+ [ES0_ACTION_TYPE_NORMAL] = {
+ .width = 73,
+ .count = 1,
+ },
+ },
+ .target = S0,
+ .keys = vsc7514_vcap_es0_keys,
+ .actions = vsc7514_vcap_es0_actions,
+ },
+ [VCAP_IS1] = {
+ .action_type_width = 0,
+ .action_table = {
+ [IS1_ACTION_TYPE_NORMAL] = {
+ .width = 78,
+ .count = 4,
+ },
+ },
+ .target = S1,
+ .keys = vsc7514_vcap_is1_keys,
+ .actions = vsc7514_vcap_is1_actions,
+ },
+ [VCAP_IS2] = {
+ .action_type_width = 1,
+ .action_table = {
+ [IS2_ACTION_TYPE_NORMAL] = {
+ .width = 49,
+ .count = 2,
+ },
+ [IS2_ACTION_TYPE_SMAC_SIP] = {
+ .width = 6,
+ .count = 4,
+ },
+ },
+ .target = S2,
+ .keys = vsc7514_vcap_is2_keys,
+ .actions = vsc7514_vcap_is2_actions,
+ },
+};
+
+static struct regmap *vsc7512_regmap_init(struct ocelot *ocelot,
+ struct resource *res)
+{
+ struct device *dev = ocelot->dev;
+ struct regmap *regmap;
+
+ regmap = ocelot_mfd_get_regmap_from_resource(dev->parent, res);
+ if (IS_ERR(regmap))
+ return ERR_CAST(regmap);
+
+ return regmap;
+}
+
+static int vsc7512_mdio_bus_alloc(struct ocelot *ocelot)
+{
+ struct felix *felix = ocelot_to_felix(ocelot);
+ struct device *dev = ocelot->dev;
+ u32 mii_offset, phy_offset;
+ struct mii_bus *bus;
+ int err;
+
+ mii_offset = ocelot_offset_from_reg_base(ocelot, GCB,
+ GCB_MIIM_MII_STATUS);
+
+ phy_offset = ocelot_offset_from_reg_base(ocelot, GCB, GCB_PHY_PHY_CFG);
+
+ err = mscc_miim_setup(dev, &bus, "ocelot_ext MDIO bus",
+ ocelot->targets[GCB], mii_offset,
+ ocelot->targets[GCB], phy_offset);
+ if (err) {
+ dev_err(dev, "failed to setup MDIO bus\n");
+ return err;
+ }
+
+ felix->imdio = bus;
+
+ return err;
+}
+
+
+static void vsc7512_mdio_bus_free(struct ocelot *ocelot)
+{
+ struct felix *felix = ocelot_to_felix(ocelot);
+
+ if (felix->imdio)
+ mdiobus_unregister(felix->imdio);
+}
+
+static const struct felix_info ocelot_ext_info = {
+ .target_io_res = vsc7512_target_io_res,
+ .port_io_res = vsc7512_port_io_res,
+ .regfields = vsc7512_regfields,
+ .map = vsc7512_regmap,
+ .ops = &vsc7512_ops,
+ .stats_layout = vsc7512_stats_layout,
+ .num_stats = ARRAY_SIZE(vsc7512_stats_layout),
+ .vcap = vsc7512_vcap_props,
+ .num_mact_rows = 1024,
+ .num_ports = 11,
+ .num_tx_queues = OCELOT_NUM_TC,
+ .mdio_bus_alloc = vsc7512_mdio_bus_alloc,
+ .mdio_bus_free = vsc7512_mdio_bus_free,
+ .phylink_validate = vsc7512_phylink_validate,
+ .prevalidate_phy_mode = vsc7512_prevalidate_phy_mode,
+ .port_setup_tc = vsc7512_port_setup_tc,
+ .init_regmap = vsc7512_regmap_init,
+};
+
+static int ocelot_ext_probe(struct platform_device *pdev)
+{
+ struct ocelot_ext_data *ocelot_ext;
+ struct dsa_switch *ds;
+ struct ocelot *ocelot;
+ struct felix *felix;
+ struct device *dev;
+ int err;
+
+ dev = &pdev->dev;
+
+ ocelot_ext = devm_kzalloc(dev, sizeof(struct ocelot_ext_data),
+ GFP_KERNEL);
+
+ if (!ocelot_ext)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, ocelot_ext);
+
+ felix = &ocelot_ext->felix;
+
+ ocelot = &felix->ocelot;
+ ocelot->dev = dev;
+
+ ocelot->num_flooding_pgids = 1;
+
+ felix->info = &ocelot_ext_info;
+
+ ds = kzalloc(sizeof(*ds), GFP_KERNEL);
+ if (!ds) {
+ err = -ENOMEM;
+ dev_err(dev, "Failed to allocate DSA switch\n");
+ return err;
+ }
+
+ ds->dev = dev;
+ ds->num_ports = felix->info->num_ports;
+ ds->num_tx_queues = felix->info->num_tx_queues;
+
+ ds->ops = &felix_switch_ops;
+ ds->priv = ocelot;
+ felix->ds = ds;
+ felix->tag_proto = DSA_TAG_PROTO_OCELOT;
+
+ err = dsa_register_switch(ds);
+
+ if (err) {
+ dev_err(dev, "Failed to register DSA switch: %d\n", err);
+ goto err_register_ds;
+ }
+
+ return 0;
+
+err_register_ds:
+ kfree(ds);
+ return err;
+}
+
+static int ocelot_ext_remove(struct platform_device *pdev)
+{
+ struct ocelot_ext_data *ocelot_ext;
+ struct felix *felix;
+
+ ocelot_ext = dev_get_drvdata(&pdev->dev);
+ felix = &ocelot_ext->felix;
+
+ dsa_unregister_switch(felix->ds);
+
+ kfree(felix->ds);
+
+ devm_kfree(&pdev->dev, ocelot_ext);
+
+ return 0;
+}
+
+const struct of_device_id ocelot_ext_switch_of_match[] = {
+ { .compatible = "mscc,vsc7512-ext-switch" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match);
+
+static struct platform_driver ocelot_ext_switch_driver = {
+ .driver = {
+ .name = "ocelot-ext-switch",
+ .of_match_table = of_match_ptr(ocelot_ext_switch_of_match),
+ },
+ .probe = ocelot_ext_probe,
+ .remove = ocelot_ext_remove,
+};
+module_platform_driver(ocelot_ext_switch_driver);
+
+MODULE_DESCRIPTION("External Ocelot Switch driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index 37bc9d647bc2..c56eaedc5e58 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -399,6 +399,8 @@ enum ocelot_reg {
GCB_MIIM_MII_STATUS,
GCB_MIIM_MII_CMD,
GCB_MIIM_MII_DATA,
+ GCB_PHY_PHY_CFG,
+ GCB_PHY_PHY_STAT,
DEV_CLOCK_CFG = DEV_GMII << TARGET_OFFSET,
DEV_PORT_MISC,
DEV_EVENTS,
--
2.25.1
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