net: dsa: add Broadcom SF2 switch driver
Add support for the Broadcom Starfigther 2 switch chip using a DSA driver. This switch driver supports the following features: - configuration of the external switch port interface: MII, RevMII, RGMII and RGMII_NO_ID are supported - support for the per-port MIB counters - support for link interrupts for special ports (e.g: MoCA) - powering up/down of switch memories to conserve power when ports are unused Finally, update the compatible property for the DSA core code to match our switch top-level compatible node. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>wifi-calibration
Florian Fainelli
David S. Miller
parent
5037d532b8
commit
246d7f773c
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@ -36,4 +36,15 @@ config NET_DSA_MV88E6123_61_65
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This enables support for the Marvell 88E6123/6161/6165
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ethernet switch chips.
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config NET_DSA_BCM_SF2
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tristate "Broadcom Starfighter 2 Ethernet switch support"
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select NET_DSA
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select NET_DSA_TAG_BRCM
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select FIXED_PHY if NET_DSA_BCM_SF2=y
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select BCM7XXX_PHY
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select MDIO_BCM_UNIMAC
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---help---
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This enables support for the Broadcom Starfighter 2 Ethernet
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switch chips.
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endmenu
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@ -7,3 +7,4 @@ endif
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ifdef CONFIG_NET_DSA_MV88E6131
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mv88e6xxx_drv-y += mv88e6131.o
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endif
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obj-$(CONFIG_NET_DSA_BCM_SF2) += bcm_sf2.o
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@ -0,0 +1,626 @@
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/*
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* Broadcom Starfighter 2 DSA switch driver
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*
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* Copyright (C) 2014, Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include <linux/phy.h>
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#include <linux/phy_fixed.h>
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#include <linux/mii.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_address.h>
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#include <net/dsa.h>
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#include "bcm_sf2.h"
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#include "bcm_sf2_regs.h"
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/* String, offset, and register size in bytes if different from 4 bytes */
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static const struct bcm_sf2_hw_stats bcm_sf2_mib[] = {
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{ "TxOctets", 0x000, 8 },
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{ "TxDropPkts", 0x020 },
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{ "TxQPKTQ0", 0x030 },
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{ "TxBroadcastPkts", 0x040 },
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{ "TxMulticastPkts", 0x050 },
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{ "TxUnicastPKts", 0x060 },
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{ "TxCollisions", 0x070 },
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{ "TxSingleCollision", 0x080 },
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{ "TxMultipleCollision", 0x090 },
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{ "TxDeferredCollision", 0x0a0 },
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{ "TxLateCollision", 0x0b0 },
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{ "TxExcessiveCollision", 0x0c0 },
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{ "TxFrameInDisc", 0x0d0 },
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{ "TxPausePkts", 0x0e0 },
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{ "TxQPKTQ1", 0x0f0 },
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{ "TxQPKTQ2", 0x100 },
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{ "TxQPKTQ3", 0x110 },
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{ "TxQPKTQ4", 0x120 },
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{ "TxQPKTQ5", 0x130 },
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{ "RxOctets", 0x140, 8 },
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{ "RxUndersizePkts", 0x160 },
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{ "RxPausePkts", 0x170 },
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{ "RxPkts64Octets", 0x180 },
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{ "RxPkts65to127Octets", 0x190 },
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{ "RxPkts128to255Octets", 0x1a0 },
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{ "RxPkts256to511Octets", 0x1b0 },
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{ "RxPkts512to1023Octets", 0x1c0 },
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{ "RxPkts1024toMaxPktsOctets", 0x1d0 },
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{ "RxOversizePkts", 0x1e0 },
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{ "RxJabbers", 0x1f0 },
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{ "RxAlignmentErrors", 0x200 },
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{ "RxFCSErrors", 0x210 },
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{ "RxGoodOctets", 0x220, 8 },
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{ "RxDropPkts", 0x240 },
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{ "RxUnicastPkts", 0x250 },
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{ "RxMulticastPkts", 0x260 },
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{ "RxBroadcastPkts", 0x270 },
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{ "RxSAChanges", 0x280 },
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{ "RxFragments", 0x290 },
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{ "RxJumboPkt", 0x2a0 },
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{ "RxSymblErr", 0x2b0 },
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{ "InRangeErrCount", 0x2c0 },
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{ "OutRangeErrCount", 0x2d0 },
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{ "EEELpiEvent", 0x2e0 },
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{ "EEELpiDuration", 0x2f0 },
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{ "RxDiscard", 0x300, 8 },
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{ "TxQPKTQ6", 0x320 },
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{ "TxQPKTQ7", 0x330 },
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{ "TxPkts64Octets", 0x340 },
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{ "TxPkts65to127Octets", 0x350 },
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{ "TxPkts128to255Octets", 0x360 },
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{ "TxPkts256to511Ocets", 0x370 },
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{ "TxPkts512to1023Ocets", 0x380 },
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{ "TxPkts1024toMaxPktOcets", 0x390 },
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};
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#define BCM_SF2_STATS_SIZE ARRAY_SIZE(bcm_sf2_mib)
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static void bcm_sf2_sw_get_strings(struct dsa_switch *ds,
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int port, uint8_t *data)
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{
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unsigned int i;
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for (i = 0; i < BCM_SF2_STATS_SIZE; i++)
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memcpy(data + i * ETH_GSTRING_LEN,
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bcm_sf2_mib[i].string, ETH_GSTRING_LEN);
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}
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static void bcm_sf2_sw_get_ethtool_stats(struct dsa_switch *ds,
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int port, uint64_t *data)
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{
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struct bcm_sf2_priv *priv = ds_to_priv(ds);
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const struct bcm_sf2_hw_stats *s;
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unsigned int i;
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u64 val = 0;
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u32 offset;
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mutex_lock(&priv->stats_mutex);
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/* Now fetch the per-port counters */
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for (i = 0; i < BCM_SF2_STATS_SIZE; i++) {
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s = &bcm_sf2_mib[i];
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/* Do a latched 64-bit read if needed */
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offset = s->reg + CORE_P_MIB_OFFSET(port);
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if (s->sizeof_stat == 8)
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val = core_readq(priv, offset);
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else
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val = core_readl(priv, offset);
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data[i] = (u64)val;
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}
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mutex_unlock(&priv->stats_mutex);
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}
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static int bcm_sf2_sw_get_sset_count(struct dsa_switch *ds)
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{
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return BCM_SF2_STATS_SIZE;
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}
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static char *bcm_sf2_sw_probe(struct mii_bus *bus, int sw_addr)
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{
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return "Broadcom Starfighter 2";
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}
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static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port)
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{
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struct bcm_sf2_priv *priv = ds_to_priv(ds);
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unsigned int i;
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u32 reg, val;
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/* Enable the port memories */
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reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
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reg &= ~P_TXQ_PSM_VDD(port);
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core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
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/* Enable Broadcast, Multicast, Unicast forwarding to IMP port */
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reg = core_readl(priv, CORE_IMP_CTL);
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reg |= (RX_BCST_EN | RX_MCST_EN | RX_UCST_EN);
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reg &= ~(RX_DIS | TX_DIS);
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core_writel(priv, reg, CORE_IMP_CTL);
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/* Enable forwarding */
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core_writel(priv, SW_FWDG_EN, CORE_SWMODE);
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/* Enable IMP port in dumb mode */
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reg = core_readl(priv, CORE_SWITCH_CTRL);
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reg |= MII_DUMB_FWDG_EN;
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core_writel(priv, reg, CORE_SWITCH_CTRL);
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/* Resolve which bit controls the Broadcom tag */
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switch (port) {
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case 8:
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val = BRCM_HDR_EN_P8;
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break;
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case 7:
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val = BRCM_HDR_EN_P7;
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break;
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case 5:
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val = BRCM_HDR_EN_P5;
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break;
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default:
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val = 0;
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break;
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}
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/* Enable Broadcom tags for IMP port */
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reg = core_readl(priv, CORE_BRCM_HDR_CTRL);
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reg |= val;
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core_writel(priv, reg, CORE_BRCM_HDR_CTRL);
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/* Enable reception Broadcom tag for CPU TX (switch RX) to
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* allow us to tag outgoing frames
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*/
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reg = core_readl(priv, CORE_BRCM_HDR_RX_DIS);
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reg &= ~(1 << port);
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core_writel(priv, reg, CORE_BRCM_HDR_RX_DIS);
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/* Enable transmission of Broadcom tags from the switch (CPU RX) to
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* allow delivering frames to the per-port net_devices
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*/
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reg = core_readl(priv, CORE_BRCM_HDR_TX_DIS);
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reg &= ~(1 << port);
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core_writel(priv, reg, CORE_BRCM_HDR_TX_DIS);
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/* Force link status for IMP port */
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reg = core_readl(priv, CORE_STS_OVERRIDE_IMP);
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reg |= (MII_SW_OR | LINK_STS);
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core_writel(priv, reg, CORE_STS_OVERRIDE_IMP);
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/* Enable the IMP Port to be in the same VLAN as the other ports
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* on a per-port basis such that we only have Port i and IMP in
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* the same VLAN.
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*/
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for (i = 0; i < priv->hw_params.num_ports; i++) {
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if (!((1 << i) & ds->phys_port_mask))
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continue;
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reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(i));
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reg |= (1 << port);
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core_writel(priv, reg, CORE_PORT_VLAN_CTL_PORT(i));
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}
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}
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static void bcm_sf2_port_setup(struct dsa_switch *ds, int port)
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{
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struct bcm_sf2_priv *priv = ds_to_priv(ds);
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u32 reg;
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/* Clear the memory power down */
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reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
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reg &= ~P_TXQ_PSM_VDD(port);
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core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
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/* Clear the Rx and Tx disable bits and set to no spanning tree */
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core_writel(priv, 0, CORE_G_PCTL_PORT(port));
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/* Enable port 7 interrupts to get notified */
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if (port == 7)
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intrl2_1_mask_clear(priv, P_IRQ_MASK(P7_IRQ_OFF));
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/* Set this port, and only this one to be in the default VLAN */
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reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(port));
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reg &= ~PORT_VLAN_CTRL_MASK;
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reg |= (1 << port);
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core_writel(priv, reg, CORE_PORT_VLAN_CTL_PORT(port));
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}
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static void bcm_sf2_port_disable(struct dsa_switch *ds, int port)
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{
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struct bcm_sf2_priv *priv = ds_to_priv(ds);
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u32 off, reg;
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if (dsa_is_cpu_port(ds, port))
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off = CORE_IMP_CTL;
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else
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off = CORE_G_PCTL_PORT(port);
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reg = core_readl(priv, off);
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reg |= RX_DIS | TX_DIS;
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core_writel(priv, reg, off);
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/* Power down the port memory */
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reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
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reg |= P_TXQ_PSM_VDD(port);
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core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
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}
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static irqreturn_t bcm_sf2_switch_0_isr(int irq, void *dev_id)
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{
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struct bcm_sf2_priv *priv = dev_id;
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priv->irq0_stat = intrl2_0_readl(priv, INTRL2_CPU_STATUS) &
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~priv->irq0_mask;
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intrl2_0_writel(priv, priv->irq0_stat, INTRL2_CPU_CLEAR);
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return IRQ_HANDLED;
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}
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static irqreturn_t bcm_sf2_switch_1_isr(int irq, void *dev_id)
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{
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struct bcm_sf2_priv *priv = dev_id;
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priv->irq1_stat = intrl2_1_readl(priv, INTRL2_CPU_STATUS) &
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~priv->irq1_mask;
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intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR);
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if (priv->irq1_stat & P_LINK_UP_IRQ(P7_IRQ_OFF))
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priv->port_sts[7].link = 1;
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if (priv->irq1_stat & P_LINK_DOWN_IRQ(P7_IRQ_OFF))
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priv->port_sts[7].link = 0;
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return IRQ_HANDLED;
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}
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static int bcm_sf2_sw_setup(struct dsa_switch *ds)
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{
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const char *reg_names[BCM_SF2_REGS_NUM] = BCM_SF2_REGS_NAME;
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struct bcm_sf2_priv *priv = ds_to_priv(ds);
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struct device_node *dn;
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void __iomem **base;
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unsigned int port;
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unsigned int i;
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u32 reg, rev;
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int ret;
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spin_lock_init(&priv->indir_lock);
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mutex_init(&priv->stats_mutex);
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/* All the interesting properties are at the parent device_node
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* level
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*/
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dn = ds->pd->of_node->parent;
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priv->irq0 = irq_of_parse_and_map(dn, 0);
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priv->irq1 = irq_of_parse_and_map(dn, 1);
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base = &priv->core;
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for (i = 0; i < BCM_SF2_REGS_NUM; i++) {
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*base = of_iomap(dn, i);
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if (*base == NULL) {
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pr_err("unable to find register: %s\n", reg_names[i]);
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return -ENODEV;
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}
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base++;
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}
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/* Disable all interrupts and request them */
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intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_MASK_SET);
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intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
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intrl2_0_writel(priv, 0, INTRL2_CPU_MASK_CLEAR);
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intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_MASK_SET);
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intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
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intrl2_1_writel(priv, 0, INTRL2_CPU_MASK_CLEAR);
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ret = request_irq(priv->irq0, bcm_sf2_switch_0_isr, 0,
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"switch_0", priv);
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if (ret < 0) {
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pr_err("failed to request switch_0 IRQ\n");
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goto out_unmap;
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}
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ret = request_irq(priv->irq1, bcm_sf2_switch_1_isr, 0,
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"switch_1", priv);
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if (ret < 0) {
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pr_err("failed to request switch_1 IRQ\n");
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goto out_free_irq0;
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}
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/* Reset the MIB counters */
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reg = core_readl(priv, CORE_GMNCFGCFG);
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reg |= RST_MIB_CNT;
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core_writel(priv, reg, CORE_GMNCFGCFG);
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reg &= ~RST_MIB_CNT;
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core_writel(priv, reg, CORE_GMNCFGCFG);
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/* Get the maximum number of ports for this switch */
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priv->hw_params.num_ports = core_readl(priv, CORE_IMP0_PRT_ID) + 1;
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if (priv->hw_params.num_ports > DSA_MAX_PORTS)
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priv->hw_params.num_ports = DSA_MAX_PORTS;
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/* Assume a single GPHY setup if we can't read that property */
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if (of_property_read_u32(dn, "brcm,num-gphy",
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&priv->hw_params.num_gphy))
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priv->hw_params.num_gphy = 1;
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/* Enable all valid ports and disable those unused */
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for (port = 0; port < priv->hw_params.num_ports; port++) {
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/* IMP port receives special treatment */
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if ((1 << port) & ds->phys_port_mask)
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bcm_sf2_port_setup(ds, port);
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else if (dsa_is_cpu_port(ds, port))
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bcm_sf2_imp_setup(ds, port);
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else
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bcm_sf2_port_disable(ds, port);
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}
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/* Include the pseudo-PHY address and the broadcast PHY address to
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* divert reads towards our workaround
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*/
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ds->phys_mii_mask |= ((1 << 30) | (1 << 0));
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rev = reg_readl(priv, REG_SWITCH_REVISION);
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priv->hw_params.top_rev = (rev >> SWITCH_TOP_REV_SHIFT) &
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SWITCH_TOP_REV_MASK;
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priv->hw_params.core_rev = (rev & SF2_REV_MASK);
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pr_info("Starfighter 2 top: %x.%02x, core: %x.%02x base: 0x%p, IRQs: %d, %d\n",
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priv->hw_params.top_rev >> 8, priv->hw_params.top_rev & 0xff,
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priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff,
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priv->core, priv->irq0, priv->irq1);
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return 0;
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out_free_irq0:
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free_irq(priv->irq0, priv);
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out_unmap:
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base = &priv->core;
|
||||
for (i = 0; i < BCM_SF2_REGS_NUM; i++) {
|
||||
iounmap(*base);
|
||||
base++;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bcm_sf2_sw_set_addr(struct dsa_switch *ds, u8 *addr)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bcm_sf2_sw_indir_rw(struct dsa_switch *ds, int op, int addr,
|
||||
int regnum, u16 val)
|
||||
{
|
||||
struct bcm_sf2_priv *priv = ds_to_priv(ds);
|
||||
int ret = 0;
|
||||
u32 reg;
|
||||
|
||||
reg = reg_readl(priv, REG_SWITCH_CNTRL);
|
||||
reg |= MDIO_MASTER_SEL;
|
||||
reg_writel(priv, reg, REG_SWITCH_CNTRL);
|
||||
|
||||
/* Page << 8 | offset */
|
||||
reg = 0x70;
|
||||
reg <<= 2;
|
||||
core_writel(priv, addr, reg);
|
||||
|
||||
/* Page << 8 | offset */
|
||||
reg = 0x80 << 8 | regnum << 1;
|
||||
reg <<= 2;
|
||||
|
||||
if (op)
|
||||
ret = core_readl(priv, reg);
|
||||
else
|
||||
core_writel(priv, val, reg);
|
||||
|
||||
reg = reg_readl(priv, REG_SWITCH_CNTRL);
|
||||
reg &= ~MDIO_MASTER_SEL;
|
||||
reg_writel(priv, reg, REG_SWITCH_CNTRL);
|
||||
|
||||
return ret & 0xffff;
|
||||
}
|
||||
|
||||
static int bcm_sf2_sw_phy_read(struct dsa_switch *ds, int addr, int regnum)
|
||||
{
|
||||
/* Intercept reads from the MDIO broadcast address or Broadcom
|
||||
* pseudo-PHY address
|
||||
*/
|
||||
switch (addr) {
|
||||
case 0:
|
||||
case 30:
|
||||
return bcm_sf2_sw_indir_rw(ds, 1, addr, regnum, 0);
|
||||
default:
|
||||
return 0xffff;
|
||||
}
|
||||
}
|
||||
|
||||
static int bcm_sf2_sw_phy_write(struct dsa_switch *ds, int addr, int regnum,
|
||||
u16 val)
|
||||
{
|
||||
/* Intercept writes to the MDIO broadcast address or Broadcom
|
||||
* pseudo-PHY address
|
||||
*/
|
||||
switch (addr) {
|
||||
case 0:
|
||||
case 30:
|
||||
bcm_sf2_sw_indir_rw(ds, 0, addr, regnum, val);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void bcm_sf2_sw_adjust_link(struct dsa_switch *ds, int port,
|
||||
struct phy_device *phydev)
|
||||
{
|
||||
struct bcm_sf2_priv *priv = ds_to_priv(ds);
|
||||
u32 id_mode_dis = 0, port_mode;
|
||||
const char *str = NULL;
|
||||
u32 reg;
|
||||
|
||||
switch (phydev->interface) {
|
||||
case PHY_INTERFACE_MODE_RGMII:
|
||||
str = "RGMII (no delay)";
|
||||
id_mode_dis = 1;
|
||||
case PHY_INTERFACE_MODE_RGMII_TXID:
|
||||
if (!str)
|
||||
str = "RGMII (TX delay)";
|
||||
port_mode = EXT_GPHY;
|
||||
break;
|
||||
case PHY_INTERFACE_MODE_MII:
|
||||
str = "MII";
|
||||
port_mode = EXT_EPHY;
|
||||
break;
|
||||
case PHY_INTERFACE_MODE_REVMII:
|
||||
str = "Reverse MII";
|
||||
port_mode = EXT_REVMII;
|
||||
break;
|
||||
default:
|
||||
goto force_link;
|
||||
}
|
||||
|
||||
/* Clear id_mode_dis bit, and the existing port mode, but
|
||||
* make sure we enable the RGMII block for data to pass
|
||||
*/
|
||||
reg = reg_readl(priv, REG_RGMII_CNTRL_P(port));
|
||||
reg &= ~ID_MODE_DIS;
|
||||
reg &= ~(PORT_MODE_MASK << PORT_MODE_SHIFT);
|
||||
reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN);
|
||||
|
||||
reg |= port_mode | RGMII_MODE_EN;
|
||||
if (id_mode_dis)
|
||||
reg |= ID_MODE_DIS;
|
||||
|
||||
if (phydev->pause) {
|
||||
if (phydev->asym_pause)
|
||||
reg |= TX_PAUSE_EN;
|
||||
reg |= RX_PAUSE_EN;
|
||||
}
|
||||
|
||||
reg_writel(priv, reg, REG_RGMII_CNTRL_P(port));
|
||||
|
||||
pr_info("Port %d configured for %s\n", port, str);
|
||||
|
||||
force_link:
|
||||
/* Force link settings detected from the PHY */
|
||||
reg = SW_OVERRIDE;
|
||||
switch (phydev->speed) {
|
||||
case SPEED_1000:
|
||||
reg |= SPDSTS_1000 << SPEED_SHIFT;
|
||||
break;
|
||||
case SPEED_100:
|
||||
reg |= SPDSTS_100 << SPEED_SHIFT;
|
||||
break;
|
||||
}
|
||||
|
||||
if (phydev->link)
|
||||
reg |= LINK_STS;
|
||||
if (phydev->duplex == DUPLEX_FULL)
|
||||
reg |= DUPLX_MODE;
|
||||
|
||||
core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(port));
|
||||
}
|
||||
|
||||
static void bcm_sf2_sw_fixed_link_update(struct dsa_switch *ds, int port,
|
||||
struct fixed_phy_status *status)
|
||||
{
|
||||
struct bcm_sf2_priv *priv = ds_to_priv(ds);
|
||||
u32 link, duplex, pause, speed;
|
||||
u32 reg;
|
||||
|
||||
link = core_readl(priv, CORE_LNKSTS);
|
||||
duplex = core_readl(priv, CORE_DUPSTS);
|
||||
pause = core_readl(priv, CORE_PAUSESTS);
|
||||
speed = core_readl(priv, CORE_SPDSTS);
|
||||
|
||||
speed >>= (port * SPDSTS_SHIFT);
|
||||
speed &= SPDSTS_MASK;
|
||||
|
||||
status->link = 0;
|
||||
|
||||
/* Port 7 is special as we do not get link status from CORE_LNKSTS,
|
||||
* which means that we need to force the link at the port override
|
||||
* level to get the data to flow. We do use what the interrupt handler
|
||||
* did determine before.
|
||||
*/
|
||||
if (port == 7) {
|
||||
status->link = priv->port_sts[port].link;
|
||||
reg = core_readl(priv, CORE_STS_OVERRIDE_GMIIP_PORT(7));
|
||||
reg |= SW_OVERRIDE;
|
||||
if (status->link)
|
||||
reg |= LINK_STS;
|
||||
else
|
||||
reg &= ~LINK_STS;
|
||||
core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(7));
|
||||
status->duplex = 1;
|
||||
} else {
|
||||
status->link = !!(link & (1 << port));
|
||||
status->duplex = !!(duplex & (1 << port));
|
||||
}
|
||||
|
||||
switch (speed) {
|
||||
case SPDSTS_10:
|
||||
status->speed = SPEED_10;
|
||||
break;
|
||||
case SPDSTS_100:
|
||||
status->speed = SPEED_100;
|
||||
break;
|
||||
case SPDSTS_1000:
|
||||
status->speed = SPEED_1000;
|
||||
break;
|
||||
}
|
||||
|
||||
if ((pause & (1 << port)) &&
|
||||
(pause & (1 << (port + PAUSESTS_TX_PAUSE_SHIFT)))) {
|
||||
status->asym_pause = 1;
|
||||
status->pause = 1;
|
||||
}
|
||||
|
||||
if (pause & (1 << port))
|
||||
status->pause = 1;
|
||||
}
|
||||
|
||||
static struct dsa_switch_driver bcm_sf2_switch_driver = {
|
||||
.tag_protocol = htons(ETH_P_BRCMTAG),
|
||||
.priv_size = sizeof(struct bcm_sf2_priv),
|
||||
.probe = bcm_sf2_sw_probe,
|
||||
.setup = bcm_sf2_sw_setup,
|
||||
.set_addr = bcm_sf2_sw_set_addr,
|
||||
.phy_read = bcm_sf2_sw_phy_read,
|
||||
.phy_write = bcm_sf2_sw_phy_write,
|
||||
.get_strings = bcm_sf2_sw_get_strings,
|
||||
.get_ethtool_stats = bcm_sf2_sw_get_ethtool_stats,
|
||||
.get_sset_count = bcm_sf2_sw_get_sset_count,
|
||||
.adjust_link = bcm_sf2_sw_adjust_link,
|
||||
.fixed_link_update = bcm_sf2_sw_fixed_link_update,
|
||||
};
|
||||
|
||||
static int __init bcm_sf2_init(void)
|
||||
{
|
||||
register_switch_driver(&bcm_sf2_switch_driver);
|
||||
|
||||
return 0;
|
||||
}
|
||||
module_init(bcm_sf2_init);
|
||||
|
||||
static void __exit bcm_sf2_exit(void)
|
||||
{
|
||||
unregister_switch_driver(&bcm_sf2_switch_driver);
|
||||
}
|
||||
module_exit(bcm_sf2_exit);
|
||||
|
||||
MODULE_AUTHOR("Broadcom Corporation");
|
||||
MODULE_DESCRIPTION("Driver for Broadcom Starfighter 2 ethernet switch chip");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("platform:brcm-sf2");
|
||||
|
|
@ -0,0 +1,140 @@
|
|||
/*
|
||||
* Broadcom Starfighter2 private context
|
||||
*
|
||||
* Copyright (C) 2014, Broadcom Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef __BCM_SF2_H
|
||||
#define __BCM_SF2_H
|
||||
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/mii.h>
|
||||
|
||||
#include <net/dsa.h>
|
||||
|
||||
#include "bcm_sf2_regs.h"
|
||||
|
||||
struct bcm_sf2_hw_params {
|
||||
u16 top_rev;
|
||||
u16 core_rev;
|
||||
u32 num_gphy;
|
||||
u8 num_acb_queue;
|
||||
u8 num_rgmii;
|
||||
u8 num_ports;
|
||||
u8 fcb_pause_override:1;
|
||||
u8 acb_packets_inflight:1;
|
||||
};
|
||||
|
||||
#define BCM_SF2_REGS_NAME {\
|
||||
"core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb" \
|
||||
}
|
||||
|
||||
#define BCM_SF2_REGS_NUM 6
|
||||
|
||||
struct bcm_sf2_port_status {
|
||||
unsigned int link;
|
||||
};
|
||||
|
||||
struct bcm_sf2_priv {
|
||||
/* Base registers, keep those in order with BCM_SF2_REGS_NAME */
|
||||
void __iomem *core;
|
||||
void __iomem *reg;
|
||||
void __iomem *intrl2_0;
|
||||
void __iomem *intrl2_1;
|
||||
void __iomem *fcb;
|
||||
void __iomem *acb;
|
||||
|
||||
/* spinlock protecting access to the indirect registers */
|
||||
spinlock_t indir_lock;
|
||||
|
||||
int irq0;
|
||||
int irq1;
|
||||
u32 irq0_stat;
|
||||
u32 irq0_mask;
|
||||
u32 irq1_stat;
|
||||
u32 irq1_mask;
|
||||
|
||||
/* Mutex protecting access to the MIB counters */
|
||||
struct mutex stats_mutex;
|
||||
|
||||
struct bcm_sf2_hw_params hw_params;
|
||||
|
||||
struct bcm_sf2_port_status port_sts[DSA_MAX_PORTS];
|
||||
};
|
||||
|
||||
struct bcm_sf2_hw_stats {
|
||||
const char *string;
|
||||
u16 reg;
|
||||
u8 sizeof_stat;
|
||||
};
|
||||
|
||||
#define SF2_IO_MACRO(name) \
|
||||
static inline u32 name##_readl(struct bcm_sf2_priv *priv, u32 off) \
|
||||
{ \
|
||||
return __raw_readl(priv->name + off); \
|
||||
} \
|
||||
static inline void name##_writel(struct bcm_sf2_priv *priv, \
|
||||
u32 val, u32 off) \
|
||||
{ \
|
||||
__raw_writel(val, priv->name + off); \
|
||||
} \
|
||||
|
||||
/* Accesses to 64-bits register requires us to latch the hi/lo pairs
|
||||
* using the REG_DIR_DATA_{READ,WRITE} ancillary registers. The 'indir_lock'
|
||||
* spinlock is automatically grabbed and released to provide relative
|
||||
* atomiticy with latched reads/writes.
|
||||
*/
|
||||
#define SF2_IO64_MACRO(name) \
|
||||
static inline u64 name##_readq(struct bcm_sf2_priv *priv, u32 off) \
|
||||
{ \
|
||||
u32 indir, dir; \
|
||||
spin_lock(&priv->indir_lock); \
|
||||
indir = reg_readl(priv, REG_DIR_DATA_READ); \
|
||||
dir = __raw_readl(priv->name + off); \
|
||||
spin_unlock(&priv->indir_lock); \
|
||||
return (u64)indir << 32 | dir; \
|
||||
} \
|
||||
static inline void name##_writeq(struct bcm_sf2_priv *priv, u32 off, \
|
||||
u64 val) \
|
||||
{ \
|
||||
spin_lock(&priv->indir_lock); \
|
||||
reg_writel(priv, upper_32_bits(val), REG_DIR_DATA_WRITE); \
|
||||
__raw_writel(lower_32_bits(val), priv->name + off); \
|
||||
spin_unlock(&priv->indir_lock); \
|
||||
}
|
||||
|
||||
#define SWITCH_INTR_L2(which) \
|
||||
static inline void intrl2_##which##_mask_clear(struct bcm_sf2_priv *priv, \
|
||||
u32 mask) \
|
||||
{ \
|
||||
intrl2_##which##_writel(priv, mask, INTRL2_CPU_MASK_CLEAR); \
|
||||
priv->irq##which##_mask &= ~(mask); \
|
||||
} \
|
||||
static inline void intrl2_##which##_mask_set(struct bcm_sf2_priv *priv, \
|
||||
u32 mask) \
|
||||
{ \
|
||||
intrl2_## which##_writel(priv, mask, INTRL2_CPU_MASK_SET); \
|
||||
priv->irq##which##_mask |= (mask); \
|
||||
} \
|
||||
|
||||
SF2_IO_MACRO(core);
|
||||
SF2_IO_MACRO(reg);
|
||||
SF2_IO64_MACRO(core);
|
||||
SF2_IO_MACRO(intrl2_0);
|
||||
SF2_IO_MACRO(intrl2_1);
|
||||
SF2_IO_MACRO(fcb);
|
||||
SF2_IO_MACRO(acb);
|
||||
|
||||
SWITCH_INTR_L2(0);
|
||||
SWITCH_INTR_L2(1);
|
||||
|
||||
#endif /* __BCM_SF2_H */
|
||||
|
|
@ -0,0 +1,227 @@
|
|||
/*
|
||||
* Broadcom Starfighter 2 switch register defines
|
||||
*
|
||||
* Copyright (C) 2014, Broadcom Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
#ifndef __BCM_SF2_REGS_H
|
||||
#define __BCM_SF2_REGS_H
|
||||
|
||||
/* Register set relative to 'REG' */
|
||||
#define REG_SWITCH_CNTRL 0x00
|
||||
#define MDIO_MASTER_SEL (1 << 0)
|
||||
|
||||
#define REG_SWITCH_STATUS 0x04
|
||||
#define REG_DIR_DATA_WRITE 0x08
|
||||
#define REG_DIR_DATA_READ 0x0C
|
||||
|
||||
#define REG_SWITCH_REVISION 0x18
|
||||
#define SF2_REV_MASK 0xffff
|
||||
#define SWITCH_TOP_REV_SHIFT 16
|
||||
#define SWITCH_TOP_REV_MASK 0xffff
|
||||
|
||||
#define REG_PHY_REVISION 0x1C
|
||||
|
||||
#define REG_SPHY_CNTRL 0x2C
|
||||
#define IDDQ_BIAS (1 << 0)
|
||||
#define EXT_PWR_DOWN (1 << 1)
|
||||
#define FORCE_DLL_EN (1 << 2)
|
||||
#define IDDQ_GLOBAL_PWR (1 << 3)
|
||||
#define CK25_DIS (1 << 4)
|
||||
#define PHY_RESET (1 << 5)
|
||||
#define PHY_PHYAD_SHIFT 8
|
||||
#define PHY_PHYAD_MASK 0x1F
|
||||
|
||||
#define REG_RGMII_0_BASE 0x34
|
||||
#define REG_RGMII_CNTRL 0x00
|
||||
#define REG_RGMII_IB_STATUS 0x04
|
||||
#define REG_RGMII_RX_CLOCK_DELAY_CNTRL 0x08
|
||||
#define REG_RGMII_CNTRL_SIZE 0x0C
|
||||
#define REG_RGMII_CNTRL_P(x) (REG_RGMII_0_BASE + \
|
||||
((x) * REG_RGMII_CNTRL_SIZE))
|
||||
/* Relative to REG_RGMII_CNTRL */
|
||||
#define RGMII_MODE_EN (1 << 0)
|
||||
#define ID_MODE_DIS (1 << 1)
|
||||
#define PORT_MODE_SHIFT 2
|
||||
#define INT_EPHY (0 << PORT_MODE_SHIFT)
|
||||
#define INT_GPHY (1 << PORT_MODE_SHIFT)
|
||||
#define EXT_EPHY (2 << PORT_MODE_SHIFT)
|
||||
#define EXT_GPHY (3 << PORT_MODE_SHIFT)
|
||||
#define EXT_REVMII (4 << PORT_MODE_SHIFT)
|
||||
#define PORT_MODE_MASK 0x7
|
||||
#define RVMII_REF_SEL (1 << 5)
|
||||
#define RX_PAUSE_EN (1 << 6)
|
||||
#define TX_PAUSE_EN (1 << 7)
|
||||
#define TX_CLK_STOP_EN (1 << 8)
|
||||
#define LPI_COUNT_SHIFT 9
|
||||
#define LPI_COUNT_MASK 0x3F
|
||||
|
||||
/* Register set relative to 'INTRL2_0' and 'INTRL2_1' */
|
||||
#define INTRL2_CPU_STATUS 0x00
|
||||
#define INTRL2_CPU_SET 0x04
|
||||
#define INTRL2_CPU_CLEAR 0x08
|
||||
#define INTRL2_CPU_MASK_STATUS 0x0c
|
||||
#define INTRL2_CPU_MASK_SET 0x10
|
||||
#define INTRL2_CPU_MASK_CLEAR 0x14
|
||||
|
||||
/* Shared INTRL2_0 and INTRL2_ interrupt sources macros */
|
||||
#define P_LINK_UP_IRQ(x) (1 << (0 + (x)))
|
||||
#define P_LINK_DOWN_IRQ(x) (1 << (1 + (x)))
|
||||
#define P_ENERGY_ON_IRQ(x) (1 << (2 + (x)))
|
||||
#define P_ENERGY_OFF_IRQ(x) (1 << (3 + (x)))
|
||||
#define P_GPHY_IRQ(x) (1 << (4 + (x)))
|
||||
#define P_NUM_IRQ 5
|
||||
#define P_IRQ_MASK(x) (P_LINK_UP_IRQ((x)) | \
|
||||
P_LINK_DOWN_IRQ((x)) | \
|
||||
P_ENERGY_ON_IRQ((x)) | \
|
||||
P_ENERGY_OFF_IRQ((x)) | \
|
||||
P_GPHY_IRQ((x)))
|
||||
|
||||
/* INTRL2_0 interrupt sources */
|
||||
#define P0_IRQ_OFF 0
|
||||
#define MEM_DOUBLE_IRQ (1 << 5)
|
||||
#define EEE_LPI_IRQ (1 << 6)
|
||||
#define P5_CPU_WAKE_IRQ (1 << 7)
|
||||
#define P8_CPU_WAKE_IRQ (1 << 8)
|
||||
#define P7_CPU_WAKE_IRQ (1 << 9)
|
||||
#define IEEE1588_IRQ (1 << 10)
|
||||
#define MDIO_ERR_IRQ (1 << 11)
|
||||
#define MDIO_DONE_IRQ (1 << 12)
|
||||
#define GISB_ERR_IRQ (1 << 13)
|
||||
#define UBUS_ERR_IRQ (1 << 14)
|
||||
#define FAILOVER_ON_IRQ (1 << 15)
|
||||
#define FAILOVER_OFF_IRQ (1 << 16)
|
||||
#define TCAM_SOFT_ERR_IRQ (1 << 17)
|
||||
|
||||
/* INTRL2_1 interrupt sources */
|
||||
#define P7_IRQ_OFF 0
|
||||
#define P_IRQ_OFF(x) ((6 - (x)) * P_NUM_IRQ)
|
||||
|
||||
/* Register set relative to 'CORE' */
|
||||
#define CORE_G_PCTL_PORT0 0x00000
|
||||
#define CORE_G_PCTL_PORT(x) (CORE_G_PCTL_PORT0 + (x * 0x4))
|
||||
#define CORE_IMP_CTL 0x00020
|
||||
#define RX_DIS (1 << 0)
|
||||
#define TX_DIS (1 << 1)
|
||||
#define RX_BCST_EN (1 << 2)
|
||||
#define RX_MCST_EN (1 << 3)
|
||||
#define RX_UCST_EN (1 << 4)
|
||||
#define G_MISTP_STATE_SHIFT 5
|
||||
#define G_MISTP_NO_STP (0 << G_MISTP_STATE_SHIFT)
|
||||
#define G_MISTP_DIS_STATE (1 << G_MISTP_STATE_SHIFT)
|
||||
#define G_MISTP_BLOCK_STATE (2 << G_MISTP_STATE_SHIFT)
|
||||
#define G_MISTP_LISTEN_STATE (3 << G_MISTP_STATE_SHIFT)
|
||||
#define G_MISTP_LEARN_STATE (4 << G_MISTP_STATE_SHIFT)
|
||||
#define G_MISTP_FWD_STATE (5 << G_MISTP_STATE_SHIFT)
|
||||
#define G_MISTP_STATE_MASK 0x7
|
||||
|
||||
#define CORE_SWMODE 0x0002c
|
||||
#define SW_FWDG_MODE (1 << 0)
|
||||
#define SW_FWDG_EN (1 << 1)
|
||||
#define RTRY_LMT_DIS (1 << 2)
|
||||
|
||||
#define CORE_STS_OVERRIDE_IMP 0x00038
|
||||
#define GMII_SPEED_UP_2G (1 << 6)
|
||||
#define MII_SW_OR (1 << 7)
|
||||
|
||||
#define CORE_NEW_CTRL 0x00084
|
||||
#define IP_MC (1 << 0)
|
||||
#define OUTRANGEERR_DISCARD (1 << 1)
|
||||
#define INRANGEERR_DISCARD (1 << 2)
|
||||
#define CABLE_DIAG_LEN (1 << 3)
|
||||
#define OVERRIDE_AUTO_PD_WAR (1 << 4)
|
||||
#define EN_AUTO_PD_WAR (1 << 5)
|
||||
#define UC_FWD_EN (1 << 6)
|
||||
#define MC_FWD_EN (1 << 7)
|
||||
|
||||
#define CORE_SWITCH_CTRL 0x00088
|
||||
#define MII_DUMB_FWDG_EN (1 << 6)
|
||||
|
||||
#define CORE_SFT_LRN_CTRL 0x000f8
|
||||
#define SW_LEARN_CNTL(x) (1 << (x))
|
||||
|
||||
#define CORE_STS_OVERRIDE_GMIIP_PORT(x) (0x160 + (x) * 4)
|
||||
#define LINK_STS (1 << 0)
|
||||
#define DUPLX_MODE (1 << 1)
|
||||
#define SPEED_SHIFT 2
|
||||
#define SPEED_MASK 0x3
|
||||
#define RXFLOW_CNTL (1 << 4)
|
||||
#define TXFLOW_CNTL (1 << 5)
|
||||
#define SW_OVERRIDE (1 << 6)
|
||||
|
||||
#define CORE_WATCHDOG_CTRL 0x001e4
|
||||
#define SOFTWARE_RESET (1 << 7)
|
||||
#define EN_CHIP_RST (1 << 6)
|
||||
#define EN_SW_RESET (1 << 4)
|
||||
|
||||
#define CORE_LNKSTS 0x00400
|
||||
#define LNK_STS_MASK 0x1ff
|
||||
|
||||
#define CORE_SPDSTS 0x00410
|
||||
#define SPDSTS_10 0
|
||||
#define SPDSTS_100 1
|
||||
#define SPDSTS_1000 2
|
||||
#define SPDSTS_SHIFT 2
|
||||
#define SPDSTS_MASK 0x3
|
||||
|
||||
#define CORE_DUPSTS 0x00420
|
||||
#define CORE_DUPSTS_MASK 0x1ff
|
||||
|
||||
#define CORE_PAUSESTS 0x00428
|
||||
#define PAUSESTS_TX_PAUSE_SHIFT 9
|
||||
|
||||
#define CORE_GMNCFGCFG 0x0800
|
||||
#define RST_MIB_CNT (1 << 0)
|
||||
#define RXBPDU_EN (1 << 1)
|
||||
|
||||
#define CORE_IMP0_PRT_ID 0x0804
|
||||
|
||||
#define CORE_BRCM_HDR_CTRL 0x0080c
|
||||
#define BRCM_HDR_EN_P8 (1 << 0)
|
||||
#define BRCM_HDR_EN_P5 (1 << 1)
|
||||
#define BRCM_HDR_EN_P7 (1 << 2)
|
||||
|
||||
#define CORE_BRCM_HDR_CTRL2 0x0828
|
||||
|
||||
#define CORE_HL_PRTC_CTRL 0x0940
|
||||
#define ARP_EN (1 << 0)
|
||||
#define RARP_EN (1 << 1)
|
||||
#define DHCP_EN (1 << 2)
|
||||
#define ICMPV4_EN (1 << 3)
|
||||
#define ICMPV6_EN (1 << 4)
|
||||
#define ICMPV6_FWD_MODE (1 << 5)
|
||||
#define IGMP_DIP_EN (1 << 8)
|
||||
#define IGMP_RPTLVE_EN (1 << 9)
|
||||
#define IGMP_RTPLVE_FWD_MODE (1 << 10)
|
||||
#define IGMP_QRY_EN (1 << 11)
|
||||
#define IGMP_QRY_FWD_MODE (1 << 12)
|
||||
#define IGMP_UKN_EN (1 << 13)
|
||||
#define IGMP_UKN_FWD_MODE (1 << 14)
|
||||
#define MLD_RPTDONE_EN (1 << 15)
|
||||
#define MLD_RPTDONE_FWD_MODE (1 << 16)
|
||||
#define MLD_QRY_EN (1 << 17)
|
||||
#define MLD_QRY_FWD_MODE (1 << 18)
|
||||
|
||||
#define CORE_RST_MIB_CNT_EN 0x0950
|
||||
|
||||
#define CORE_BRCM_HDR_RX_DIS 0x0980
|
||||
#define CORE_BRCM_HDR_TX_DIS 0x0988
|
||||
|
||||
#define CORE_MEM_PSM_VDD_CTRL 0x2380
|
||||
#define P_TXQ_PSM_VDD_SHIFT 2
|
||||
#define P_TXQ_PSM_VDD_MASK 0x3
|
||||
#define P_TXQ_PSM_VDD(x) (P_TXQ_PSM_VDD_MASK << \
|
||||
((x) * P_TXQ_PSM_VDD_SHIFT))
|
||||
|
||||
#define CORE_P0_MIB_OFFSET 0x8000
|
||||
#define P_MIB_SIZE 0x400
|
||||
#define CORE_P_MIB_OFFSET(x) (CORE_P0_MIB_OFFSET + (x) * P_MIB_SIZE)
|
||||
|
||||
#define CORE_PORT_VLAN_CTL_PORT(x) (0xc400 + ((x) * 0x8))
|
||||
#define PORT_VLAN_CTRL_MASK 0x1ff
|
||||
|
||||
#endif /* __BCM_SF2_REGS_H */
|
||||
|
|
@ -635,6 +635,7 @@ struct packet_type dsa_pack_type __read_mostly = {
|
|||
};
|
||||
|
||||
static const struct of_device_id dsa_of_match_table[] = {
|
||||
{ .compatible = "brcm,bcm7445-switch-v4.0" },
|
||||
{ .compatible = "marvell,dsa", },
|
||||
{}
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in New Issue