Commit 246d7f77 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller

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: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5037d532
......@@ -36,4 +36,15 @@ config NET_DSA_MV88E6123_61_65
This enables support for the Marvell 88E6123/6161/6165
ethernet switch chips.
config NET_DSA_BCM_SF2
tristate "Broadcom Starfighter 2 Ethernet switch support"
select NET_DSA
select NET_DSA_TAG_BRCM
select FIXED_PHY if NET_DSA_BCM_SF2=y
select BCM7XXX_PHY
select MDIO_BCM_UNIMAC
---help---
This enables support for the Broadcom Starfighter 2 Ethernet
switch chips.
endmenu
......@@ -7,3 +7,4 @@ endif
ifdef CONFIG_NET_DSA_MV88E6131
mv88e6xxx_drv-y += mv88e6131.o
endif
obj-$(CONFIG_NET_DSA_BCM_SF2) += bcm_sf2.o
This diff is collapsed.
/*
* 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 */
/*
* 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", },
{}
};
......
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