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net-next: dsa: add new driver for qca8xxx family

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This patch contains initial support for the QCA8337 switch. It
will detect a QCA8337 switch, if present and declared in the DT.

Each port will be represented through a standalone net_device interface,
as for other DSA switches. CPU can communicate with any of the ports by
setting an IP@ on ethN interface. Most of the extra callbacks of the DSA
subsystem are already supported, such as bridge offloading, stp, fdb.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Crispin 2016-09-15 16:26:41 +02:00 committed by David S. Miller
parent cafdc45c94
commit 6b93fb4648
4 changed files with 1255 additions and 0 deletions
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9
drivers/net/dsa/Kconfig
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@ -25,4 +25,13 @@ source "drivers/net/dsa/b53/Kconfig"
source "drivers/net/dsa/mv88e6xxx/Kconfig"
config NET_DSA_QCA8K
tristate "Qualcomm Atheros QCA8K Ethernet switch family support"
depends on NET_DSA
select NET_DSA_TAG_QCA
select REGMAP
---help---
This enables support for the Qualcomm Atheros QCA8K Ethernet
switch chips.
endmenu

1
drivers/net/dsa/Makefile
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@ -1,5 +1,6 @@
obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o
obj-$(CONFIG_NET_DSA_BCM_SF2) += bcm_sf2.o
obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o
obj-y += b53/
obj-y += mv88e6xxx/

1060
drivers/net/dsa/qca8k.c Normal file
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File diff suppressed because it is too large Load Diff

185
drivers/net/dsa/qca8k.h Normal file
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@ -0,0 +1,185 @@
/*
* Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __QCA8K_H
#define __QCA8K_H
#include <linux/delay.h>
#include <linux/regmap.h>
#define QCA8K_NUM_PORTS 7
#define PHY_ID_QCA8337 0x004dd036
#define QCA8K_ID_QCA8337 0x13
#define QCA8K_NUM_FDB_RECORDS 2048
#define QCA8K_CPU_PORT 0
/* Global control registers */
#define QCA8K_REG_MASK_CTRL 0x000
#define QCA8K_MASK_CTRL_ID_M 0xff
#define QCA8K_MASK_CTRL_ID_S 8
#define QCA8K_REG_PORT0_PAD_CTRL 0x004
#define QCA8K_REG_PORT5_PAD_CTRL 0x008
#define QCA8K_REG_PORT6_PAD_CTRL 0x00c
#define QCA8K_PORT_PAD_RGMII_EN BIT(26)
#define QCA8K_PORT_PAD_RGMII_TX_DELAY(x) \
((0x8 + (x & 0x3)) << 22)
#define QCA8K_PORT_PAD_RGMII_RX_DELAY(x) \
((0x10 + (x & 0x3)) << 20)
#define QCA8K_PORT_PAD_RGMII_RX_DELAY_EN BIT(24)
#define QCA8K_PORT_PAD_SGMII_EN BIT(7)
#define QCA8K_REG_MODULE_EN 0x030
#define QCA8K_MODULE_EN_MIB BIT(0)
#define QCA8K_REG_MIB 0x034
#define QCA8K_MIB_FLUSH BIT(24)
#define QCA8K_MIB_CPU_KEEP BIT(20)
#define QCA8K_MIB_BUSY BIT(17)
#define QCA8K_GOL_MAC_ADDR0 0x60
#define QCA8K_GOL_MAC_ADDR1 0x64
#define QCA8K_REG_PORT_STATUS(_i) (0x07c + (_i) * 4)
#define QCA8K_PORT_STATUS_SPEED GENMASK(2, 0)
#define QCA8K_PORT_STATUS_SPEED_S 0
#define QCA8K_PORT_STATUS_TXMAC BIT(2)
#define QCA8K_PORT_STATUS_RXMAC BIT(3)
#define QCA8K_PORT_STATUS_TXFLOW BIT(4)
#define QCA8K_PORT_STATUS_RXFLOW BIT(5)
#define QCA8K_PORT_STATUS_DUPLEX BIT(6)
#define QCA8K_PORT_STATUS_LINK_UP BIT(8)
#define QCA8K_PORT_STATUS_LINK_AUTO BIT(9)
#define QCA8K_PORT_STATUS_LINK_PAUSE BIT(10)
#define QCA8K_REG_PORT_HDR_CTRL(_i) (0x9c + (_i * 4))
#define QCA8K_PORT_HDR_CTRL_RX_MASK GENMASK(3, 2)
#define QCA8K_PORT_HDR_CTRL_RX_S 2
#define QCA8K_PORT_HDR_CTRL_TX_MASK GENMASK(1, 0)
#define QCA8K_PORT_HDR_CTRL_TX_S 0
#define QCA8K_PORT_HDR_CTRL_ALL 2
#define QCA8K_PORT_HDR_CTRL_MGMT 1
#define QCA8K_PORT_HDR_CTRL_NONE 0
/* EEE control registers */
#define QCA8K_REG_EEE_CTRL 0x100
#define QCA8K_REG_EEE_CTRL_LPI_EN(_i) ((_i + 1) * 2)
/* ACL registers */
#define QCA8K_REG_PORT_VLAN_CTRL0(_i) (0x420 + (_i * 8))
#define QCA8K_PORT_VLAN_CVID(x) (x << 16)
#define QCA8K_PORT_VLAN_SVID(x) x
#define QCA8K_REG_PORT_VLAN_CTRL1(_i) (0x424 + (_i * 8))
#define QCA8K_REG_IPV4_PRI_BASE_ADDR 0x470
#define QCA8K_REG_IPV4_PRI_ADDR_MASK 0x474
/* Lookup registers */
#define QCA8K_REG_ATU_DATA0 0x600
#define QCA8K_ATU_ADDR2_S 24
#define QCA8K_ATU_ADDR3_S 16
#define QCA8K_ATU_ADDR4_S 8
#define QCA8K_REG_ATU_DATA1 0x604
#define QCA8K_ATU_PORT_M 0x7f
#define QCA8K_ATU_PORT_S 16
#define QCA8K_ATU_ADDR0_S 8
#define QCA8K_REG_ATU_DATA2 0x608
#define QCA8K_ATU_VID_M 0xfff
#define QCA8K_ATU_VID_S 8
#define QCA8K_ATU_STATUS_M 0xf
#define QCA8K_ATU_STATUS_STATIC 0xf
#define QCA8K_REG_ATU_FUNC 0x60c
#define QCA8K_ATU_FUNC_BUSY BIT(31)
#define QCA8K_ATU_FUNC_PORT_EN BIT(14)
#define QCA8K_ATU_FUNC_MULTI_EN BIT(13)
#define QCA8K_ATU_FUNC_FULL BIT(12)
#define QCA8K_ATU_FUNC_PORT_M 0xf
#define QCA8K_ATU_FUNC_PORT_S 8
#define QCA8K_REG_GLOBAL_FW_CTRL0 0x620
#define QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN BIT(10)
#define QCA8K_REG_GLOBAL_FW_CTRL1 0x624
#define QCA8K_GLOBAL_FW_CTRL1_IGMP_DP_S 24
#define QCA8K_GLOBAL_FW_CTRL1_BC_DP_S 16
#define QCA8K_GLOBAL_FW_CTRL1_MC_DP_S 8
#define QCA8K_GLOBAL_FW_CTRL1_UC_DP_S 0
#define QCA8K_PORT_LOOKUP_CTRL(_i) (0x660 + (_i) * 0xc)
#define QCA8K_PORT_LOOKUP_MEMBER GENMASK(6, 0)
#define QCA8K_PORT_LOOKUP_STATE_MASK GENMASK(18, 16)
#define QCA8K_PORT_LOOKUP_STATE_DISABLED (0 << 16)
#define QCA8K_PORT_LOOKUP_STATE_BLOCKING (1 << 16)
#define QCA8K_PORT_LOOKUP_STATE_LISTENING (2 << 16)
#define QCA8K_PORT_LOOKUP_STATE_LEARNING (3 << 16)
#define QCA8K_PORT_LOOKUP_STATE_FORWARD (4 << 16)
#define QCA8K_PORT_LOOKUP_STATE GENMASK(18, 16)
#define QCA8K_PORT_LOOKUP_LEARN BIT(20)
/* Pkt edit registers */
#define QCA8K_EGRESS_VLAN(x) (0x0c70 + (4 * (x / 2)))
/* L3 registers */
#define QCA8K_HROUTER_CONTROL 0xe00
#define QCA8K_HROUTER_CONTROL_GLB_LOCKTIME_M GENMASK(17, 16)
#define QCA8K_HROUTER_CONTROL_GLB_LOCKTIME_S 16
#define QCA8K_HROUTER_CONTROL_ARP_AGE_MODE 1
#define QCA8K_HROUTER_PBASED_CONTROL1 0xe08
#define QCA8K_HROUTER_PBASED_CONTROL2 0xe0c
#define QCA8K_HNAT_CONTROL 0xe38
/* MIB registers */
#define QCA8K_PORT_MIB_COUNTER(_i) (0x1000 + (_i) * 0x100)
/* QCA specific MII registers */
#define MII_ATH_MMD_ADDR 0x0d
#define MII_ATH_MMD_DATA 0x0e
enum {
QCA8K_PORT_SPEED_10M = 0,
QCA8K_PORT_SPEED_100M = 1,
QCA8K_PORT_SPEED_1000M = 2,
QCA8K_PORT_SPEED_ERR = 3,
};
enum qca8k_fdb_cmd {
QCA8K_FDB_FLUSH = 1,
QCA8K_FDB_LOAD = 2,
QCA8K_FDB_PURGE = 3,
QCA8K_FDB_NEXT = 6,
QCA8K_FDB_SEARCH = 7,
};
struct ar8xxx_port_status {
struct ethtool_eee eee;
struct net_device *bridge_dev;
int enabled;
};
struct qca8k_priv {
struct regmap *regmap;
struct mii_bus *bus;
struct ar8xxx_port_status port_sts[QCA8K_NUM_PORTS];
struct dsa_switch *ds;
struct mutex reg_mutex;
};
struct qca8k_mib_desc {
unsigned int size;
unsigned int offset;
const char *name;
};
struct qca8k_fdb {
u16 vid;
u8 port_mask;
u8 aging;
u8 mac[6];
};
#endif /* __QCA8K_H */