| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1465521837-30193-2-git-send-email-f.fainelli@gmail.com>
Date: Thu, 9 Jun 2016 18:23:53 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: netdev@...r.kernel.org
Cc: Florian Fainelli <f.fainelli@...il.com>, andrew@...n.ch,
vivien.didelot@...oirfairelinux.com, davem@...emloft.net,
jon.mason@...adcom.com, hemal.shah@...adcom.com,
bandaru.viswanath@...adcom.com, michael.chan@...adcom.com,
jogo@...nwrt.org, cphealy@...il.com, ardeleanalex@...il.com,
jiri@...lanox.com, idosch@...lanox.com
Subject: [PATCH net-next 1/5] net: dsa: b53: Add support for Broadcom RoboSwitch
This patch adds support for Broadcom's BCM53xx switch family, also known
as RoboSwitch. Some of these switches are ubiquituous, found in home
routers, Wi-Fi routers, DSL and cable modem gateways and other
networking related products.
This drivers adds the library driver (b53_common.c) as well as a few bus
glue drivers for MDIO, SPI, Switch Register Access Block (SRAB) and
memory-mapped I/O into a SoC's address space (Broadcom BCM63xx/33xx).
Basic operations are supported to bring the Layer 1/2 up and running,
but not much more at this point, subsequent patches add the remaining
features.
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
Documentation/devicetree/bindings/net/dsa/b53.txt | 90 ++
MAINTAINERS | 8 +
drivers/net/dsa/Kconfig | 2 +
drivers/net/dsa/Makefile | 2 +
drivers/net/dsa/b53/Kconfig | 33 +
drivers/net/dsa/b53/Makefile | 6 +
drivers/net/dsa/b53/b53_common.c | 1158 +++++++++++++++++++++
drivers/net/dsa/b53/b53_mdio.c | 381 +++++++
drivers/net/dsa/b53/b53_mmap.c | 260 +++++
drivers/net/dsa/b53/b53_priv.h | 322 ++++++
drivers/net/dsa/b53/b53_regs.h | 358 +++++++
drivers/net/dsa/b53/b53_spi.c | 331 ++++++
drivers/net/dsa/b53/b53_srab.c | 415 ++++++++
include/linux/platform_data/b53.h | 33 +
14 files changed, 3399 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/dsa/b53.txt
create mode 100644 drivers/net/dsa/b53/Kconfig
create mode 100644 drivers/net/dsa/b53/Makefile
create mode 100644 drivers/net/dsa/b53/b53_common.c
create mode 100644 drivers/net/dsa/b53/b53_mdio.c
create mode 100644 drivers/net/dsa/b53/b53_mmap.c
create mode 100644 drivers/net/dsa/b53/b53_priv.h
create mode 100644 drivers/net/dsa/b53/b53_regs.h
create mode 100644 drivers/net/dsa/b53/b53_spi.c
create mode 100644 drivers/net/dsa/b53/b53_srab.c
create mode 100644 include/linux/platform_data/b53.h
diff --git a/Documentation/devicetree/bindings/net/dsa/b53.txt b/Documentation/devicetree/bindings/net/dsa/b53.txt
new file mode 100644
index 000000000000..4a5349a09655
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/b53.txt
@@ -0,0 +1,90 @@
+Broadcom BCM53xx Ethernet switches
+==================================
+
+Required properties:
+
+- compatible: For external switch chips, compatible string must be exactly one
+ of: "brcm,bcm5325"
+ "brcm,bcm53115"
+ "brcm,bcm53125"
+ "brcm,bcm53128"
+ "brcm,bcm5365"
+ "brcm,bcm5395"
+ "brcm,bcm5397"
+ "brcm,bcm5398"
+
+ For the BCM5310x SoCs with an integrated switch, must be one of:
+ "brcm,bcm53010-srab"
+ "brcm,bcm53011-srab"
+ "brcm,bcm53012-srab"
+ "brcm,bcm53018-srab"
+ "brcm,bcm53019-srab" and the mandatory "brcm,bcm5301x-srab" string
+
+ For the BCM63xx/33xx SoCs with an integrated switch, must be one of:
+ "brcm,bcm3384-switch"
+ "brcm,bcm6328-switch"
+ "brcm,bcm6368-switch" and the mandatory "brcm,bcm63xx-switch"
+
+See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional
+required and optional properties.
+
+Examples:
+
+Ethernet switch connected via MDIO to the host, CPU port wired to eth0:
+
+ eth0: ethernet@...01000 {
+ compatible = "brcm,unimac";
+ reg = <0x10001000 0x1000>;
+
+ fixed-link {
+ speed = <1000>;
+ duplex-full;
+ };
+ };
+
+ mdio0: mdio@...00000 {
+ compatible = "brcm,unimac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch0: ethernet-switch@30 {
+ compatible = "brcm,bcm53125";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ port0@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port1@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port5@5 {
+ reg = <5>;
+ label = "cable-modem";
+ fixed-link {
+ speed = <1000>;
+ duplex-full;
+ };
+ phy-mode = "rgmii-txid";
+ };
+
+ port8@8 {
+ reg = <8>;
+ label = "cpu";
+ fixed-link {
+ speed = <1000>;
+ duplex-full;
+ };
+ phy-mode = "rgmii-txid";
+ ethernet = <ð0>;
+ };
+ };
+ };
+ };
+
+
diff --git a/MAINTAINERS b/MAINTAINERS
index 16e1500d7c52..b29a08884eed 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2454,6 +2454,14 @@ L: netdev@...r.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/b44.*
+BROADCOM B53 ETHERNET SWITCH DRIVER
+M: Florian Fainelli <f.fainelli@...il.com>
+L: netdev@...r.kernel.org
+L: openwrt-devel@...ts.openwrt.org (subscribers-only)
+S: Supported
+F: drivers/net/dsa/b53/*
+F: include/linux/platform_data/b53.h
+
BROADCOM GENET ETHERNET DRIVER
M: Florian Fainelli <f.fainelli@...il.com>
L: netdev@...r.kernel.org
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 200663c43ce9..be481e15ec9b 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -28,4 +28,6 @@ config NET_DSA_BCM_SF2
This enables support for the Broadcom Starfighter 2 Ethernet
switch chips.
+source "drivers/net/dsa/b53/Kconfig"
+
endmenu
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index 76b751dd9efd..97bc70a7f3c7 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -1,3 +1,5 @@
obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o
obj-$(CONFIG_NET_DSA_MV88E6XXX) += mv88e6xxx.o
obj-$(CONFIG_NET_DSA_BCM_SF2) += bcm_sf2.o
+
+obj-y += b53/
diff --git a/drivers/net/dsa/b53/Kconfig b/drivers/net/dsa/b53/Kconfig
new file mode 100644
index 000000000000..27f32a50df57
--- /dev/null
+++ b/drivers/net/dsa/b53/Kconfig
@@ -0,0 +1,33 @@
+menuconfig B53
+ tristate "Broadcom BCM53xx managed switch support"
+ depends on NET_DSA
+ help
+ This driver adds support for Broadcom managed switch chips. It supports
+ BCM5325E, BCM5365, BCM539x, BCM53115 and BCM53125 as well as BCM63XX
+ integrated switches.
+
+config B53_SPI_DRIVER
+ tristate "B53 SPI connected switch driver"
+ depends on B53 && SPI
+ help
+ Select to enable support for registering switches configured through SPI.
+
+config B53_MDIO_DRIVER
+ tristate "B53 MDIO connected switch driver"
+ depends on B53
+ help
+ Select to enable support for registering switches configured through MDIO.
+
+config B53_MMAP_DRIVER
+ tristate "B53 MMAP connected switch driver"
+ depends on B53 && HAS_IOMEM
+ help
+ Select to enable support for memory-mapped switches like the BCM63XX
+ integrated switches.
+
+config B53_SRAB_DRIVER
+ tristate "B53 SRAB connected switch driver"
+ depends on B53 && HAS_IOMEM
+ help
+ Select to enable support for memory-mapped Switch Register Access
+ Bridge Registers (SRAB) like it is found on the BCM53010
diff --git a/drivers/net/dsa/b53/Makefile b/drivers/net/dsa/b53/Makefile
new file mode 100644
index 000000000000..7e6f9a8bfd75
--- /dev/null
+++ b/drivers/net/dsa/b53/Makefile
@@ -0,0 +1,6 @@
+obj-$(CONFIG_B53) += b53_common.o
+
+obj-$(CONFIG_B53_SPI_DRIVER) += b53_spi.o
+obj-$(CONFIG_B53_MDIO_DRIVER) += b53_mdio.o
+obj-$(CONFIG_B53_MMAP_DRIVER) += b53_mmap.o
+obj-$(CONFIG_B53_SRAB_DRIVER) += b53_srab.o
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
new file mode 100644
index 000000000000..6f0337d6dfa4
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -0,0 +1,1158 @@
+/*
+ * B53 switch driver main logic
+ *
+ * Copyright (C) 2011-2013 Jonas Gorski <jogo@...nwrt.org>
+ * Copyright (C) 2016 Florian Fainelli <f.fainelli@...il.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/export.h>
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_data/b53.h>
+#include <linux/phy.h>
+#include <net/dsa.h>
+
+#include "b53_regs.h"
+#include "b53_priv.h"
+
+struct b53_mib_desc {
+ u8 size;
+ u8 offset;
+ const char *name;
+};
+
+/* BCM5365 MIB counters */
+static const struct b53_mib_desc b53_mibs_65[] = {
+ { 8, 0x00, "TxOctets" },
+ { 4, 0x08, "TxDropPkts" },
+ { 4, 0x10, "TxBroadcastPkts" },
+ { 4, 0x14, "TxMulticastPkts" },
+ { 4, 0x18, "TxUnicastPkts" },
+ { 4, 0x1c, "TxCollisions" },
+ { 4, 0x20, "TxSingleCollision" },
+ { 4, 0x24, "TxMultipleCollision" },
+ { 4, 0x28, "TxDeferredTransmit" },
+ { 4, 0x2c, "TxLateCollision" },
+ { 4, 0x30, "TxExcessiveCollision" },
+ { 4, 0x38, "TxPausePkts" },
+ { 8, 0x44, "RxOctets" },
+ { 4, 0x4c, "RxUndersizePkts" },
+ { 4, 0x50, "RxPausePkts" },
+ { 4, 0x54, "Pkts64Octets" },
+ { 4, 0x58, "Pkts65to127Octets" },
+ { 4, 0x5c, "Pkts128to255Octets" },
+ { 4, 0x60, "Pkts256to511Octets" },
+ { 4, 0x64, "Pkts512to1023Octets" },
+ { 4, 0x68, "Pkts1024to1522Octets" },
+ { 4, 0x6c, "RxOversizePkts" },
+ { 4, 0x70, "RxJabbers" },
+ { 4, 0x74, "RxAlignmentErrors" },
+ { 4, 0x78, "RxFCSErrors" },
+ { 8, 0x7c, "RxGoodOctets" },
+ { 4, 0x84, "RxDropPkts" },
+ { 4, 0x88, "RxUnicastPkts" },
+ { 4, 0x8c, "RxMulticastPkts" },
+ { 4, 0x90, "RxBroadcastPkts" },
+ { 4, 0x94, "RxSAChanges" },
+ { 4, 0x98, "RxFragments" },
+};
+
+#define B53_MIBS_65_SIZE ARRAY_SIZE(b53_mibs_65)
+
+/* BCM63xx MIB counters */
+static const struct b53_mib_desc b53_mibs_63xx[] = {
+ { 8, 0x00, "TxOctets" },
+ { 4, 0x08, "TxDropPkts" },
+ { 4, 0x0c, "TxQoSPkts" },
+ { 4, 0x10, "TxBroadcastPkts" },
+ { 4, 0x14, "TxMulticastPkts" },
+ { 4, 0x18, "TxUnicastPkts" },
+ { 4, 0x1c, "TxCollisions" },
+ { 4, 0x20, "TxSingleCollision" },
+ { 4, 0x24, "TxMultipleCollision" },
+ { 4, 0x28, "TxDeferredTransmit" },
+ { 4, 0x2c, "TxLateCollision" },
+ { 4, 0x30, "TxExcessiveCollision" },
+ { 4, 0x38, "TxPausePkts" },
+ { 8, 0x3c, "TxQoSOctets" },
+ { 8, 0x44, "RxOctets" },
+ { 4, 0x4c, "RxUndersizePkts" },
+ { 4, 0x50, "RxPausePkts" },
+ { 4, 0x54, "Pkts64Octets" },
+ { 4, 0x58, "Pkts65to127Octets" },
+ { 4, 0x5c, "Pkts128to255Octets" },
+ { 4, 0x60, "Pkts256to511Octets" },
+ { 4, 0x64, "Pkts512to1023Octets" },
+ { 4, 0x68, "Pkts1024to1522Octets" },
+ { 4, 0x6c, "RxOversizePkts" },
+ { 4, 0x70, "RxJabbers" },
+ { 4, 0x74, "RxAlignmentErrors" },
+ { 4, 0x78, "RxFCSErrors" },
+ { 8, 0x7c, "RxGoodOctets" },
+ { 4, 0x84, "RxDropPkts" },
+ { 4, 0x88, "RxUnicastPkts" },
+ { 4, 0x8c, "RxMulticastPkts" },
+ { 4, 0x90, "RxBroadcastPkts" },
+ { 4, 0x94, "RxSAChanges" },
+ { 4, 0x98, "RxFragments" },
+ { 4, 0xa0, "RxSymbolErrors" },
+ { 4, 0xa4, "RxQoSPkts" },
+ { 8, 0xa8, "RxQoSOctets" },
+ { 4, 0xb0, "Pkts1523to2047Octets" },
+ { 4, 0xb4, "Pkts2048to4095Octets" },
+ { 4, 0xb8, "Pkts4096to8191Octets" },
+ { 4, 0xbc, "Pkts8192to9728Octets" },
+ { 4, 0xc0, "RxDiscarded" },
+};
+
+#define B53_MIBS_63XX_SIZE ARRAY_SIZE(b53_mibs_63xx)
+
+/* MIB counters */
+static const struct b53_mib_desc b53_mibs[] = {
+ { 8, 0x00, "TxOctets" },
+ { 4, 0x08, "TxDropPkts" },
+ { 4, 0x10, "TxBroadcastPkts" },
+ { 4, 0x14, "TxMulticastPkts" },
+ { 4, 0x18, "TxUnicastPkts" },
+ { 4, 0x1c, "TxCollisions" },
+ { 4, 0x20, "TxSingleCollision" },
+ { 4, 0x24, "TxMultipleCollision" },
+ { 4, 0x28, "TxDeferredTransmit" },
+ { 4, 0x2c, "TxLateCollision" },
+ { 4, 0x30, "TxExcessiveCollision" },
+ { 4, 0x38, "TxPausePkts" },
+ { 8, 0x50, "RxOctets" },
+ { 4, 0x58, "RxUndersizePkts" },
+ { 4, 0x5c, "RxPausePkts" },
+ { 4, 0x60, "Pkts64Octets" },
+ { 4, 0x64, "Pkts65to127Octets" },
+ { 4, 0x68, "Pkts128to255Octets" },
+ { 4, 0x6c, "Pkts256to511Octets" },
+ { 4, 0x70, "Pkts512to1023Octets" },
+ { 4, 0x74, "Pkts1024to1522Octets" },
+ { 4, 0x78, "RxOversizePkts" },
+ { 4, 0x7c, "RxJabbers" },
+ { 4, 0x80, "RxAlignmentErrors" },
+ { 4, 0x84, "RxFCSErrors" },
+ { 8, 0x88, "RxGoodOctets" },
+ { 4, 0x90, "RxDropPkts" },
+ { 4, 0x94, "RxUnicastPkts" },
+ { 4, 0x98, "RxMulticastPkts" },
+ { 4, 0x9c, "RxBroadcastPkts" },
+ { 4, 0xa0, "RxSAChanges" },
+ { 4, 0xa4, "RxFragments" },
+ { 4, 0xa8, "RxJumboPkts" },
+ { 4, 0xac, "RxSymbolErrors" },
+ { 4, 0xc0, "RxDiscarded" },
+};
+
+#define B53_MIBS_SIZE ARRAY_SIZE(b53_mibs)
+
+static int b53_do_vlan_op(struct b53_device *dev, u8 op)
+{
+ unsigned int i;
+
+ b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op);
+
+ for (i = 0; i < 10; i++) {
+ u8 vta;
+
+ b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta);
+ if (!(vta & VTA_START_CMD))
+ return 0;
+
+ usleep_range(100, 200);
+ }
+
+ return -EIO;
+}
+
+static void b53_set_vlan_entry(struct b53_device *dev, u16 vid, u16 members,
+ u16 untag)
+{
+ if (is5325(dev)) {
+ u32 entry = 0;
+
+ if (members) {
+ entry = ((untag & VA_UNTAG_MASK_25) << VA_UNTAG_S_25) |
+ members;
+ if (dev->core_rev >= 3)
+ entry |= VA_VALID_25_R4 | vid << VA_VID_HIGH_S;
+ else
+ entry |= VA_VALID_25;
+ }
+
+ b53_write32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, entry);
+ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid |
+ VTA_RW_STATE_WR | VTA_RW_OP_EN);
+ } else if (is5365(dev)) {
+ u16 entry = 0;
+
+ if (members)
+ entry = ((untag & VA_UNTAG_MASK_65) << VA_UNTAG_S_65) |
+ members | VA_VALID_65;
+
+ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, entry);
+ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid |
+ VTA_RW_STATE_WR | VTA_RW_OP_EN);
+ } else {
+ b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid);
+ b53_write32(dev, B53_ARLIO_PAGE, dev->vta_regs[2],
+ (untag << VTE_UNTAG_S) | members);
+
+ b53_do_vlan_op(dev, VTA_CMD_WRITE);
+ }
+}
+
+void b53_set_forwarding(struct b53_device *dev, int enable)
+{
+ u8 mgmt;
+
+ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+ if (enable)
+ mgmt |= SM_SW_FWD_EN;
+ else
+ mgmt &= ~SM_SW_FWD_EN;
+
+ b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+}
+
+static void b53_enable_vlan(struct b53_device *dev, int enable)
+{
+ u8 mgmt, vc0, vc1, vc4 = 0, vc5;
+
+ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0);
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1);
+
+ if (is5325(dev) || is5365(dev)) {
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5);
+ } else if (is63xx(dev)) {
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4);
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5);
+ } else {
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4);
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5);
+ }
+
+ mgmt &= ~SM_SW_FWD_MODE;
+
+ if (enable) {
+ vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID;
+ vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN;
+ vc4 &= ~VC4_ING_VID_CHECK_MASK;
+ vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S;
+ vc5 |= VC5_DROP_VTABLE_MISS;
+
+ if (is5325(dev))
+ vc0 &= ~VC0_RESERVED_1;
+
+ if (is5325(dev) || is5365(dev))
+ vc1 |= VC1_RX_MCST_TAG_EN;
+
+ if (!is5325(dev) && !is5365(dev)) {
+ if (dev->allow_vid_4095)
+ vc5 |= VC5_VID_FFF_EN;
+ else
+ vc5 &= ~VC5_VID_FFF_EN;
+ }
+ } else {
+ vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID);
+ vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN);
+ vc4 &= ~VC4_ING_VID_CHECK_MASK;
+ vc5 &= ~VC5_DROP_VTABLE_MISS;
+
+ if (is5325(dev) || is5365(dev))
+ vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
+ else
+ vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S;
+
+ if (is5325(dev) || is5365(dev))
+ vc1 &= ~VC1_RX_MCST_TAG_EN;
+
+ if (!is5325(dev) && !is5365(dev))
+ vc5 &= ~VC5_VID_FFF_EN;
+ }
+
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0);
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1);
+
+ if (is5325(dev) || is5365(dev)) {
+ /* enable the high 8 bit vid check on 5325 */
+ if (is5325(dev) && enable)
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3,
+ VC3_HIGH_8BIT_EN);
+ else
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
+
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4);
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5);
+ } else if (is63xx(dev)) {
+ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0);
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4);
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5);
+ } else {
+ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4);
+ b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5);
+ }
+
+ b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+}
+
+static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100)
+{
+ u32 port_mask = 0;
+ u16 max_size = JMS_MIN_SIZE;
+
+ if (is5325(dev) || is5365(dev))
+ return -EINVAL;
+
+ if (enable) {
+ port_mask = dev->enabled_ports;
+ max_size = JMS_MAX_SIZE;
+ if (allow_10_100)
+ port_mask |= JPM_10_100_JUMBO_EN;
+ }
+
+ b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask);
+ return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size);
+}
+
+static int b53_flush_arl(struct b53_device *dev)
+{
+ unsigned int i;
+
+ b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
+ FAST_AGE_DONE | FAST_AGE_DYNAMIC | FAST_AGE_STATIC);
+
+ for (i = 0; i < 10; i++) {
+ u8 fast_age_ctrl;
+
+ b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
+ &fast_age_ctrl);
+
+ if (!(fast_age_ctrl & FAST_AGE_DONE))
+ goto out;
+
+ msleep(1);
+ }
+
+ return -ETIMEDOUT;
+out:
+ /* Only age dynamic entries (default behavior) */
+ b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC);
+ return 0;
+}
+
+static int b53_enable_port(struct dsa_switch *ds, int port,
+ struct phy_device *phy)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+
+ /* Clear the Rx and Tx disable bits and set to no spanning tree */
+ b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0);
+
+ return 0;
+}
+
+static void b53_disable_port(struct dsa_switch *ds, int port,
+ struct phy_device *phy)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+ u8 reg;
+
+ /* Disable Tx/Rx for the port */
+ b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®);
+ reg |= PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE;
+ b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg);
+}
+
+static void b53_enable_cpu_port(struct b53_device *dev)
+{
+ unsigned int cpu_port = dev->cpu_port;
+ u8 port_ctrl;
+
+ /* BCM5325 CPU port is at 8 */
+ if ((is5325(dev) || is5365(dev)) && cpu_port == B53_CPU_PORT_25)
+ cpu_port = B53_CPU_PORT;
+
+ port_ctrl = PORT_CTRL_RX_BCST_EN |
+ PORT_CTRL_RX_MCST_EN |
+ PORT_CTRL_RX_UCST_EN;
+ b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(cpu_port), port_ctrl);
+}
+
+static void b53_enable_mib(struct b53_device *dev)
+{
+ u8 gc;
+
+ b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
+ gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN);
+ b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc);
+}
+
+static int b53_configure_vlan(struct b53_device *dev)
+{
+ int i;
+
+ /* clear all vlan entries */
+ if (is5325(dev) || is5365(dev)) {
+ for (i = 1; i < dev->num_vlans; i++)
+ b53_set_vlan_entry(dev, i, 0, 0);
+ } else {
+ b53_do_vlan_op(dev, VTA_CMD_CLEAR);
+ }
+
+ b53_enable_vlan(dev, false);
+
+ b53_for_each_port(dev, i)
+ b53_write16(dev, B53_VLAN_PAGE,
+ B53_VLAN_PORT_DEF_TAG(i), 1);
+
+ if (!is5325(dev) && !is5365(dev))
+ b53_set_jumbo(dev, dev->enable_jumbo, false);
+
+ return 0;
+}
+
+static void b53_switch_reset_gpio(struct b53_device *dev)
+{
+ int gpio = dev->reset_gpio;
+
+ if (gpio < 0)
+ return;
+
+ /* Reset sequence: RESET low(50ms)->high(20ms)
+ */
+ gpio_set_value(gpio, 0);
+ mdelay(50);
+
+ gpio_set_value(gpio, 1);
+ mdelay(20);
+
+ dev->current_page = 0xff;
+}
+
+static int b53_switch_reset(struct b53_device *dev)
+{
+ u8 mgmt;
+
+ b53_switch_reset_gpio(dev);
+
+ if (is539x(dev)) {
+ b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83);
+ b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00);
+ }
+
+ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+ if (!(mgmt & SM_SW_FWD_EN)) {
+ mgmt &= ~SM_SW_FWD_MODE;
+ mgmt |= SM_SW_FWD_EN;
+
+ b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+ b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+ if (!(mgmt & SM_SW_FWD_EN)) {
+ dev_err(dev->dev, "Failed to enable switch!\n");
+ return -EINVAL;
+ }
+ }
+
+ b53_enable_mib(dev);
+
+ return b53_flush_arl(dev);
+}
+
+static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg)
+{
+ struct b53_device *priv = ds_to_priv(ds);
+ u16 value = 0;
+ int ret;
+
+ if (priv->ops->phy_read16)
+ ret = priv->ops->phy_read16(priv, addr, reg, &value);
+ else
+ ret = b53_read16(priv, B53_PORT_MII_PAGE(addr),
+ reg * 2, &value);
+
+ return ret ? ret : value;
+}
+
+static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
+{
+ struct b53_device *priv = ds_to_priv(ds);
+
+ if (priv->ops->phy_write16)
+ return priv->ops->phy_write16(priv, addr, reg, val);
+
+ return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val);
+}
+
+static int b53_reset_switch(struct b53_device *priv)
+{
+ /* reset vlans */
+ priv->enable_jumbo = false;
+
+ memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports);
+
+ return b53_switch_reset(priv);
+}
+
+static int b53_apply_config(struct b53_device *priv)
+{
+ /* disable switching */
+ b53_set_forwarding(priv, 0);
+
+ b53_configure_vlan(priv);
+
+ /* enable switching */
+ b53_set_forwarding(priv, 1);
+
+ return 0;
+}
+
+static void b53_reset_mib(struct b53_device *priv)
+{
+ u8 gc;
+
+ b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
+
+ b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB);
+ msleep(1);
+ b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB);
+ msleep(1);
+}
+
+static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev)
+{
+ if (is5365(dev))
+ return b53_mibs_65;
+ else if (is63xx(dev))
+ return b53_mibs_63xx;
+ else
+ return b53_mibs;
+}
+
+static unsigned int b53_get_mib_size(struct b53_device *dev)
+{
+ if (is5365(dev))
+ return B53_MIBS_65_SIZE;
+ else if (is63xx(dev))
+ return B53_MIBS_63XX_SIZE;
+ else
+ return B53_MIBS_SIZE;
+}
+
+static void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+ const struct b53_mib_desc *mibs = b53_get_mib(dev);
+ unsigned int mib_size = b53_get_mib_size(dev);
+ unsigned int i;
+
+ for (i = 0; i < mib_size; i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ mibs[i].name, ETH_GSTRING_LEN);
+}
+
+static void b53_get_ethtool_stats(struct dsa_switch *ds, int port,
+ uint64_t *data)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+ const struct b53_mib_desc *mibs = b53_get_mib(dev);
+ unsigned int mib_size = b53_get_mib_size(dev);
+ const struct b53_mib_desc *s;
+ unsigned int i;
+ u64 val = 0;
+
+ if (is5365(dev) && port == 5)
+ port = 8;
+
+ mutex_lock(&dev->stats_mutex);
+
+ for (i = 0; i < mib_size; i++) {
+ s = &mibs[i];
+
+ if (mibs->size == 8) {
+ b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val);
+ } else {
+ u32 val32;
+
+ b53_read32(dev, B53_MIB_PAGE(port), s->offset,
+ &val32);
+ val = val32;
+ }
+ data[i] = (u64)val;
+ }
+
+ mutex_unlock(&dev->stats_mutex);
+}
+
+static int b53_get_sset_count(struct dsa_switch *ds)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+
+ return b53_get_mib_size(dev);
+}
+
+static int b53_set_addr(struct dsa_switch *ds, u8 *addr)
+{
+ return 0;
+}
+
+static int b53_setup(struct dsa_switch *ds)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+ unsigned int port;
+ int ret;
+
+ ret = b53_reset_switch(dev);
+ if (ret) {
+ dev_err(ds->dev, "failed to reset switch\n");
+ return ret;
+ }
+
+ b53_reset_mib(dev);
+
+ ret = b53_apply_config(dev);
+ if (ret)
+ dev_err(ds->dev, "failed to apply configuration\n");
+
+ for (port = 0; port < dev->num_ports; port++) {
+ if (BIT(port) & ds->enabled_port_mask)
+ b53_enable_port(ds, port, NULL);
+ else if (dsa_is_cpu_port(ds, port))
+ b53_enable_cpu_port(dev);
+ else
+ b53_disable_port(ds, port, NULL);
+ }
+
+ return ret;
+}
+
+static void b53_adjust_link(struct dsa_switch *ds, int port,
+ struct phy_device *phydev)
+{
+ struct b53_device *dev = ds_to_priv(ds);
+ u8 rgmii_ctrl = 0, reg = 0, off;
+
+ if (!phy_is_pseudo_fixed_link(phydev))
+ return;
+
+ /* Override the port settings */
+ if (port == dev->cpu_port) {
+ off = B53_PORT_OVERRIDE_CTRL;
+ reg = PORT_OVERRIDE_EN;
+ } else {
+ off = B53_GMII_PORT_OVERRIDE_CTRL(port);
+ reg = GMII_PO_EN;
+ }
+
+ /* Set the link UP */
+ if (phydev->link)
+ reg |= PORT_OVERRIDE_LINK;
+
+ if (phydev->duplex == DUPLEX_FULL)
+ reg |= PORT_OVERRIDE_FULL_DUPLEX;
+
+ switch (phydev->speed) {
+ case 2000:
+ reg |= PORT_OVERRIDE_SPEED_2000M;
+ /* fallthrough */
+ case SPEED_1000:
+ reg |= PORT_OVERRIDE_SPEED_1000M;
+ break;
+ case SPEED_100:
+ reg |= PORT_OVERRIDE_SPEED_100M;
+ break;
+ case SPEED_10:
+ reg |= PORT_OVERRIDE_SPEED_10M;
+ break;
+ default:
+ dev_err(ds->dev, "unknown speed: %d\n", phydev->speed);
+ return;
+ }
+
+ /* Enable flow control on BCM5301x's CPU port */
+ if (is5301x(dev) && port == dev->cpu_port)
+ reg |= PORT_OVERRIDE_RX_FLOW | PORT_OVERRIDE_TX_FLOW;
+
+ if (phydev->pause) {
+ if (phydev->asym_pause)
+ reg |= PORT_OVERRIDE_TX_FLOW;
+ reg |= PORT_OVERRIDE_RX_FLOW;
+ }
+
+ b53_write8(dev, B53_CTRL_PAGE, off, reg);
+
+ if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
+ if (port == 8)
+ off = B53_RGMII_CTRL_IMP;
+ else
+ off = B53_RGMII_CTRL_P(port);
+
+ /* Configure the port RGMII clock delay by DLL disabled and
+ * tx_clk aligned timing (restoring to reset defaults)
+ */
+ b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
+ rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC |
+ RGMII_CTRL_TIMING_SEL);
+
+ /* PHY_INTERFACE_MODE_RGMII_TXID means TX internal delay, make
+ * sure that we enable the port TX clock internal delay to
+ * account for this internal delay that is inserted, otherwise
+ * the switch won't be able to receive correctly.
+ *
+ * PHY_INTERFACE_MODE_RGMII means that we are not introducing
+ * any delay neither on transmission nor reception, so the
+ * BCM53125 must also be configured accordingly to account for
+ * the lack of delay and introduce
+ *
+ * The BCM53125 switch has its RX clock and TX clock control
+ * swapped, hence the reason why we modify the TX clock path in
+ * the "RGMII" case
+ */
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
+ rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+ rgmii_ctrl |= RGMII_CTRL_DLL_TXC | RGMII_CTRL_DLL_RXC;
+ rgmii_ctrl |= RGMII_CTRL_TIMING_SEL;
+ b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
+
+ dev_info(ds->dev, "Configured port %d for %s\n", port,
+ phy_modes(phydev->interface));
+ }
+
+ /* configure MII port if necessary */
+ if (is5325(dev)) {
+ b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+ ®);
+
+ /* reverse mii needs to be enabled */
+ if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
+ b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+ reg | PORT_OVERRIDE_RV_MII_25);
+ b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+ ®);
+
+ if (!(reg & PORT_OVERRIDE_RV_MII_25)) {
+ dev_err(ds->dev,
+ "Failed to enable reverse MII mode\n");
+ return;
+ }
+ }
+ } else if (is5301x(dev)) {
+ if (port != dev->cpu_port) {
+ u8 po_reg = B53_GMII_PORT_OVERRIDE_CTRL(dev->cpu_port);
+ u8 gmii_po;
+
+ b53_read8(dev, B53_CTRL_PAGE, po_reg, &gmii_po);
+ gmii_po |= GMII_PO_LINK |
+ GMII_PO_RX_FLOW |
+ GMII_PO_TX_FLOW |
+ GMII_PO_EN |
+ GMII_PO_SPEED_2000M;
+ b53_write8(dev, B53_CTRL_PAGE, po_reg, gmii_po);
+ }
+ }
+}
+
+static struct dsa_switch_driver b53_switch_ops = {
+ .tag_protocol = DSA_TAG_PROTO_NONE,
+ .setup = b53_setup,
+ .set_addr = b53_set_addr,
+ .get_strings = b53_get_strings,
+ .get_ethtool_stats = b53_get_ethtool_stats,
+ .get_sset_count = b53_get_sset_count,
+ .phy_read = b53_phy_read16,
+ .phy_write = b53_phy_write16,
+ .adjust_link = b53_adjust_link,
+ .port_enable = b53_enable_port,
+ .port_disable = b53_disable_port,
+};
+
+struct b53_chip_data {
+ u32 chip_id;
+ const char *dev_name;
+ u16 vlans;
+ u16 enabled_ports;
+ u8 cpu_port;
+ u8 vta_regs[3];
+ u8 duplex_reg;
+ u8 jumbo_pm_reg;
+ u8 jumbo_size_reg;
+};
+
+#define B53_VTA_REGS \
+ { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY }
+#define B53_VTA_REGS_9798 \
+ { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 }
+#define B53_VTA_REGS_63XX \
+ { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX }
+
+static const struct b53_chip_data b53_switch_chips[] = {
+ {
+ .chip_id = BCM5325_DEVICE_ID,
+ .dev_name = "BCM5325",
+ .vlans = 16,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT_25,
+ .duplex_reg = B53_DUPLEX_STAT_FE,
+ },
+ {
+ .chip_id = BCM5365_DEVICE_ID,
+ .dev_name = "BCM5365",
+ .vlans = 256,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT_25,
+ .duplex_reg = B53_DUPLEX_STAT_FE,
+ },
+ {
+ .chip_id = BCM5395_DEVICE_ID,
+ .dev_name = "BCM5395",
+ .vlans = 4096,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT,
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM5397_DEVICE_ID,
+ .dev_name = "BCM5397",
+ .vlans = 4096,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT,
+ .vta_regs = B53_VTA_REGS_9798,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM5398_DEVICE_ID,
+ .dev_name = "BCM5398",
+ .vlans = 4096,
+ .enabled_ports = 0x7f,
+ .cpu_port = B53_CPU_PORT,
+ .vta_regs = B53_VTA_REGS_9798,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53115_DEVICE_ID,
+ .dev_name = "BCM53115",
+ .vlans = 4096,
+ .enabled_ports = 0x1f,
+ .vta_regs = B53_VTA_REGS,
+ .cpu_port = B53_CPU_PORT,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53125_DEVICE_ID,
+ .dev_name = "BCM53125",
+ .vlans = 4096,
+ .enabled_ports = 0xff,
+ .cpu_port = B53_CPU_PORT,
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53128_DEVICE_ID,
+ .dev_name = "BCM53128",
+ .vlans = 4096,
+ .enabled_ports = 0x1ff,
+ .cpu_port = B53_CPU_PORT,
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM63XX_DEVICE_ID,
+ .dev_name = "BCM63xx",
+ .vlans = 4096,
+ .enabled_ports = 0, /* pdata must provide them */
+ .cpu_port = B53_CPU_PORT,
+ .vta_regs = B53_VTA_REGS_63XX,
+ .duplex_reg = B53_DUPLEX_STAT_63XX,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX,
+ },
+ {
+ .chip_id = BCM53010_DEVICE_ID,
+ .dev_name = "BCM53010",
+ .vlans = 4096,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53011_DEVICE_ID,
+ .dev_name = "BCM53011",
+ .vlans = 4096,
+ .enabled_ports = 0x1bf,
+ .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53012_DEVICE_ID,
+ .dev_name = "BCM53012",
+ .vlans = 4096,
+ .enabled_ports = 0x1bf,
+ .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53018_DEVICE_ID,
+ .dev_name = "BCM53018",
+ .vlans = 4096,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+ {
+ .chip_id = BCM53019_DEVICE_ID,
+ .dev_name = "BCM53019",
+ .vlans = 4096,
+ .enabled_ports = 0x1f,
+ .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */
+ .vta_regs = B53_VTA_REGS,
+ .duplex_reg = B53_DUPLEX_STAT_GE,
+ .jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+ .jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+ },
+};
+
+static int b53_switch_init(struct b53_device *dev)
+{
+ struct dsa_switch *ds = dev->ds;
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) {
+ const struct b53_chip_data *chip = &b53_switch_chips[i];
+
+ if (chip->chip_id == dev->chip_id) {
+ if (!dev->enabled_ports)
+ dev->enabled_ports = chip->enabled_ports;
+ dev->name = chip->dev_name;
+ dev->duplex_reg = chip->duplex_reg;
+ dev->vta_regs[0] = chip->vta_regs[0];
+ dev->vta_regs[1] = chip->vta_regs[1];
+ dev->vta_regs[2] = chip->vta_regs[2];
+ dev->jumbo_pm_reg = chip->jumbo_pm_reg;
+ ds->drv = &b53_switch_ops;
+ dev->cpu_port = chip->cpu_port;
+ dev->num_vlans = chip->vlans;
+ break;
+ }
+ }
+
+ /* check which BCM5325x version we have */
+ if (is5325(dev)) {
+ u8 vc4;
+
+ b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
+
+ /* check reserved bits */
+ switch (vc4 & 3) {
+ case 1:
+ /* BCM5325E */
+ break;
+ case 3:
+ /* BCM5325F - do not use port 4 */
+ dev->enabled_ports &= ~BIT(4);
+ break;
+ default:
+/* On the BCM47XX SoCs this is the supported internal switch.*/
+#ifndef CONFIG_BCM47XX
+ /* BCM5325M */
+ return -EINVAL;
+#else
+ break;
+#endif
+ }
+ } else if (dev->chip_id == BCM53115_DEVICE_ID) {
+ u64 strap_value;
+
+ b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value);
+ /* use second IMP port if GMII is enabled */
+ if (strap_value & SV_GMII_CTRL_115)
+ dev->cpu_port = 5;
+ }
+
+ /* cpu port is always last */
+ dev->num_ports = dev->cpu_port + 1;
+ dev->enabled_ports |= BIT(dev->cpu_port);
+
+ dev->ports = devm_kzalloc(dev->dev,
+ sizeof(struct b53_port) * dev->num_ports,
+ GFP_KERNEL);
+ if (!dev->ports)
+ return -ENOMEM;
+
+ dev->reset_gpio = b53_switch_get_reset_gpio(dev);
+ if (dev->reset_gpio >= 0) {
+ ret = devm_gpio_request_one(dev->dev, dev->reset_gpio,
+ GPIOF_OUT_INIT_HIGH, "robo_reset");
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+struct b53_device *b53_switch_alloc(struct device *base, struct b53_io_ops *ops,
+ void *priv)
+{
+ struct dsa_switch *ds;
+ struct b53_device *dev;
+
+ ds = devm_kzalloc(base, sizeof(*ds) + sizeof(*dev), GFP_KERNEL);
+ if (!ds)
+ return NULL;
+
+ dev = (struct b53_device *)(ds + 1);
+
+ ds->priv = dev;
+ ds->dev = base;
+ dev->dev = base;
+
+ dev->ds = ds;
+ dev->priv = priv;
+ dev->ops = ops;
+ mutex_init(&dev->reg_mutex);
+ mutex_init(&dev->stats_mutex);
+
+ return dev;
+}
+EXPORT_SYMBOL(b53_switch_alloc);
+
+int b53_switch_detect(struct b53_device *dev)
+{
+ u32 id32;
+ u16 tmp;
+ u8 id8;
+ int ret;
+
+ ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8);
+ if (ret)
+ return ret;
+
+ switch (id8) {
+ case 0:
+ /* BCM5325 and BCM5365 do not have this register so reads
+ * return 0. But the read operation did succeed, so assume this
+ * is one of them.
+ *
+ * Next check if we can write to the 5325's VTA register; for
+ * 5365 it is read only.
+ */
+ b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf);
+ b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp);
+
+ if (tmp == 0xf)
+ dev->chip_id = BCM5325_DEVICE_ID;
+ else
+ dev->chip_id = BCM5365_DEVICE_ID;
+ break;
+ case BCM5395_DEVICE_ID:
+ case BCM5397_DEVICE_ID:
+ case BCM5398_DEVICE_ID:
+ dev->chip_id = id8;
+ break;
+ default:
+ ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32);
+ if (ret)
+ return ret;
+
+ switch (id32) {
+ case BCM53115_DEVICE_ID:
+ case BCM53125_DEVICE_ID:
+ case BCM53128_DEVICE_ID:
+ case BCM53010_DEVICE_ID:
+ case BCM53011_DEVICE_ID:
+ case BCM53012_DEVICE_ID:
+ case BCM53018_DEVICE_ID:
+ case BCM53019_DEVICE_ID:
+ dev->chip_id = id32;
+ break;
+ default:
+ pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n",
+ id8, id32);
+ return -ENODEV;
+ }
+ }
+
+ if (dev->chip_id == BCM5325_DEVICE_ID)
+ return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25,
+ &dev->core_rev);
+ else
+ return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID,
+ &dev->core_rev);
+}
+EXPORT_SYMBOL(b53_switch_detect);
+
+int b53_switch_register(struct b53_device *dev)
+{
+ int ret;
+
+ if (dev->pdata) {
+ dev->chip_id = dev->pdata->chip_id;
+ dev->enabled_ports = dev->pdata->enabled_ports;
+ }
+
+ if (!dev->chip_id && b53_switch_detect(dev))
+ return -EINVAL;
+
+ ret = b53_switch_init(dev);
+ if (ret)
+ return ret;
+
+ pr_info("found switch: %s, rev %i\n", dev->name, dev->core_rev);
+
+ return dsa_register_switch(dev->ds, dev->ds->dev->of_node);
+}
+EXPORT_SYMBOL(b53_switch_register);
+
+MODULE_AUTHOR("Jonas Gorski <jogo@...nwrt.org>");
+MODULE_DESCRIPTION("B53 switch library");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/dsa/b53/b53_mdio.c b/drivers/net/dsa/b53/b53_mdio.c
new file mode 100644
index 000000000000..c6cf7cf57cc3
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_mdio.c
@@ -0,0 +1,381 @@
+/*
+ * B53 register access through MII registers
+ *
+ * Copyright (C) 2011-2013 Jonas Gorski <jogo@...nwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/phy.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/brcmphy.h>
+#include <linux/rtnetlink.h>
+#include <net/dsa.h>
+
+#include "b53_priv.h"
+
+/* MII registers */
+#define REG_MII_PAGE 0x10 /* MII Page register */
+#define REG_MII_ADDR 0x11 /* MII Address register */
+#define REG_MII_DATA0 0x18 /* MII Data register 0 */
+#define REG_MII_DATA1 0x19 /* MII Data register 1 */
+#define REG_MII_DATA2 0x1a /* MII Data register 2 */
+#define REG_MII_DATA3 0x1b /* MII Data register 3 */
+
+#define REG_MII_PAGE_ENABLE BIT(0)
+#define REG_MII_ADDR_WRITE BIT(0)
+#define REG_MII_ADDR_READ BIT(1)
+
+static int b53_mdio_op(struct b53_device *dev, u8 page, u8 reg, u16 op)
+{
+ int i;
+ u16 v;
+ int ret;
+ struct mii_bus *bus = dev->priv;
+
+ if (dev->current_page != page) {
+ /* set page number */
+ v = (page << 8) | REG_MII_PAGE_ENABLE;
+ ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_PAGE, v);
+ if (ret)
+ return ret;
+ dev->current_page = page;
+ }
+
+ /* set register address */
+ v = (reg << 8) | op;
+ ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR, REG_MII_ADDR, v);
+ if (ret)
+ return ret;
+
+ /* check if operation completed */
+ for (i = 0; i < 5; ++i) {
+ v = mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_ADDR);
+ if (!(v & (REG_MII_ADDR_WRITE | REG_MII_ADDR_READ)))
+ break;
+ usleep_range(10, 100);
+ }
+
+ if (WARN_ON(i == 5))
+ return -EIO;
+
+ return 0;
+}
+
+static int b53_mdio_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
+{
+ struct mii_bus *bus = dev->priv;
+ int ret;
+
+ ret = b53_mdio_op(dev, page, reg, REG_MII_ADDR_READ);
+ if (ret)
+ return ret;
+
+ *val = mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0) & 0xff;
+
+ return 0;
+}
+
+static int b53_mdio_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
+{
+ struct mii_bus *bus = dev->priv;
+ int ret;
+
+ ret = b53_mdio_op(dev, page, reg, REG_MII_ADDR_READ);
+ if (ret)
+ return ret;
+
+ *val = mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR, REG_MII_DATA0);
+
+ return 0;
+}
+
+static int b53_mdio_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
+{
+ struct mii_bus *bus = dev->priv;
+ int ret;
+
+ ret = b53_mdio_op(dev, page, reg, REG_MII_ADDR_READ);
+ if (ret)
+ return ret;
+
+ *val = mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR, REG_MII_DATA0);
+ *val |= mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA1) << 16;
+
+ return 0;
+}
+
+static int b53_mdio_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ struct mii_bus *bus = dev->priv;
+ u64 temp = 0;
+ int i;
+ int ret;
+
+ ret = b53_mdio_op(dev, page, reg, REG_MII_ADDR_READ);
+ if (ret)
+ return ret;
+
+ for (i = 2; i >= 0; i--) {
+ temp <<= 16;
+ temp |= mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0 + i);
+ }
+
+ *val = temp;
+
+ return 0;
+}
+
+static int b53_mdio_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ struct mii_bus *bus = dev->priv;
+ u64 temp = 0;
+ int i;
+ int ret;
+
+ ret = b53_mdio_op(dev, page, reg, REG_MII_ADDR_READ);
+ if (ret)
+ return ret;
+
+ for (i = 3; i >= 0; i--) {
+ temp <<= 16;
+ temp |= mdiobus_read_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0 + i);
+ }
+
+ *val = temp;
+
+ return 0;
+}
+
+static int b53_mdio_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
+{
+ struct mii_bus *bus = dev->priv;
+ int ret;
+
+ ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0, value);
+ if (ret)
+ return ret;
+
+ return b53_mdio_op(dev, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write16(struct b53_device *dev, u8 page, u8 reg,
+ u16 value)
+{
+ struct mii_bus *bus = dev->priv;
+ int ret;
+
+ ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0, value);
+ if (ret)
+ return ret;
+
+ return b53_mdio_op(dev, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write32(struct b53_device *dev, u8 page, u8 reg,
+ u32 value)
+{
+ struct mii_bus *bus = dev->priv;
+ unsigned int i;
+ u32 temp = value;
+
+ for (i = 0; i < 2; i++) {
+ int ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0 + i,
+ temp & 0xffff);
+ if (ret)
+ return ret;
+ temp >>= 16;
+ }
+
+ return b53_mdio_op(dev, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write48(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ struct mii_bus *bus = dev->priv;
+ unsigned int i;
+ u64 temp = value;
+
+ for (i = 0; i < 3; i++) {
+ int ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0 + i,
+ temp & 0xffff);
+ if (ret)
+ return ret;
+ temp >>= 16;
+ }
+
+ return b53_mdio_op(dev, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write64(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ struct mii_bus *bus = dev->priv;
+ unsigned int i;
+ u64 temp = value;
+
+ for (i = 0; i < 4; i++) {
+ int ret = mdiobus_write_nested(bus, BRCM_PSEUDO_PHY_ADDR,
+ REG_MII_DATA0 + i,
+ temp & 0xffff);
+ if (ret)
+ return ret;
+ temp >>= 16;
+ }
+
+ return b53_mdio_op(dev, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_phy_read16(struct b53_device *dev, int addr, int reg,
+ u16 *value)
+{
+ struct mii_bus *bus = dev->priv;
+
+ *value = mdiobus_read_nested(bus, addr, reg);
+
+ return 0;
+}
+
+static int b53_mdio_phy_write16(struct b53_device *dev, int addr, int reg,
+ u16 value)
+{
+ struct mii_bus *bus = dev->bus;
+
+ return mdiobus_write_nested(bus, addr, reg, value);
+}
+
+static struct b53_io_ops b53_mdio_ops = {
+ .read8 = b53_mdio_read8,
+ .read16 = b53_mdio_read16,
+ .read32 = b53_mdio_read32,
+ .read48 = b53_mdio_read48,
+ .read64 = b53_mdio_read64,
+ .write8 = b53_mdio_write8,
+ .write16 = b53_mdio_write16,
+ .write32 = b53_mdio_write32,
+ .write48 = b53_mdio_write48,
+ .write64 = b53_mdio_write64,
+ .phy_read16 = b53_mdio_phy_read16,
+ .phy_write16 = b53_mdio_phy_write16,
+};
+
+#define B53_BRCM_OUI_1 0x0143bc00
+#define B53_BRCM_OUI_2 0x03625c00
+#define B53_BRCM_OUI_3 0x00406000
+
+static int b53_mdio_probe(struct mdio_device *mdiodev)
+{
+ struct b53_device *dev;
+ u32 phy_id;
+ int ret;
+
+ /* allow the generic PHY driver to take over the non-management MDIO
+ * addresses
+ */
+ if (mdiodev->addr != BRCM_PSEUDO_PHY_ADDR && mdiodev->addr != 0) {
+ dev_err(&mdiodev->dev, "leaving address %d to PHY\n",
+ mdiodev->addr);
+ return -ENODEV;
+ }
+
+ /* read the first port's id */
+ phy_id = mdiobus_read(mdiodev->bus, 0, 2) << 16;
+ phy_id |= mdiobus_read(mdiodev->bus, 0, 3);
+
+ /* BCM5325, BCM539x (OUI_1)
+ * BCM53125, BCM53128 (OUI_2)
+ * BCM5365 (OUI_3)
+ */
+ if ((phy_id & 0xfffffc00) != B53_BRCM_OUI_1 &&
+ (phy_id & 0xfffffc00) != B53_BRCM_OUI_2 &&
+ (phy_id & 0xfffffc00) != B53_BRCM_OUI_3) {
+ dev_err(&mdiodev->dev, "Unsupported device: 0x%08x\n", phy_id);
+ return -ENODEV;
+ }
+
+ dev = b53_switch_alloc(&mdiodev->dev, &b53_mdio_ops, mdiodev->bus);
+ if (!dev)
+ return -ENOMEM;
+
+ /* we don't use page 0xff, so force a page set */
+ dev->current_page = 0xff;
+ dev->bus = mdiodev->bus;
+
+ dev_set_drvdata(&mdiodev->dev, dev);
+
+ ret = b53_switch_register(dev);
+ if (ret) {
+ dev_err(&mdiodev->dev, "failed to register switch: %i\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static void b53_mdio_remove(struct mdio_device *mdiodev)
+{
+ struct b53_device *dev = dev_get_drvdata(&mdiodev->dev);
+ struct dsa_switch *ds = dev->ds;
+
+ dsa_unregister_switch(ds);
+}
+
+static const struct of_device_id b53_of_match[] = {
+ { .compatible = "brcm,bcm5325" },
+ { .compatible = "brcm,bcm53115" },
+ { .compatible = "brcm,bcm53125" },
+ { .compatible = "brcm,bcm53128" },
+ { .compatible = "brcm,bcm5365" },
+ { .compatible = "brcm,bcm5395" },
+ { .compatible = "brcm,bcm5397" },
+ { .compatible = "brcm,bcm5398" },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, b53_of_match);
+
+static struct mdio_driver b53_mdio_driver = {
+ .probe = b53_mdio_probe,
+ .remove = b53_mdio_remove,
+ .mdiodrv.driver = {
+ .name = "bcm53xx",
+ .of_match_table = b53_of_match,
+ },
+};
+
+static int __init b53_mdio_driver_register(void)
+{
+ return mdio_driver_register(&b53_mdio_driver);
+}
+module_init(b53_mdio_driver_register);
+
+static void __exit b53_mdio_driver_unregister(void)
+{
+ mdio_driver_unregister(&b53_mdio_driver);
+}
+module_exit(b53_mdio_driver_unregister);
+
+MODULE_DESCRIPTION("B53 MDIO access driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c
new file mode 100644
index 000000000000..f115ee25c0e8
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_mmap.c
@@ -0,0 +1,260 @@
+/*
+ * B53 register access through memory mapped registers
+ *
+ * Copyright (C) 2012-2013 Jonas Gorski <jogo@...nwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/kconfig.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/b53.h>
+
+#include "b53_priv.h"
+
+struct b53_mmap_priv {
+ void __iomem *regs;
+};
+
+static int b53_mmap_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
+{
+ u8 __iomem *regs = dev->priv;
+
+ *val = readb(regs + (page << 8) + reg);
+
+ return 0;
+}
+
+static int b53_mmap_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
+{
+ u8 __iomem *regs = dev->priv;
+
+ if (WARN_ON(reg % 2))
+ return -EINVAL;
+
+ if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) && dev->pdata &&
+ dev->pdata->big_endian)
+ *val = __raw_readw(regs + (page << 8) + reg);
+ else
+ *val = readw(regs + (page << 8) + reg);
+
+ return 0;
+}
+
+static int b53_mmap_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
+{
+ u8 __iomem *regs = dev->priv;
+
+ if (WARN_ON(reg % 4))
+ return -EINVAL;
+
+ if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) && dev->pdata &&
+ dev->pdata->big_endian)
+ *val = __raw_readl(regs + (page << 8) + reg);
+ else
+ *val = readl(regs + (page << 8) + reg);
+
+ return 0;
+}
+
+static int b53_mmap_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ if (WARN_ON(reg % 2))
+ return -EINVAL;
+
+ if (reg % 4) {
+ u16 lo;
+ u32 hi;
+
+ b53_mmap_read16(dev, page, reg, &lo);
+ b53_mmap_read32(dev, page, reg + 2, &hi);
+
+ *val = ((u64)hi << 16) | lo;
+ } else {
+ u32 lo;
+ u16 hi;
+
+ b53_mmap_read32(dev, page, reg, &lo);
+ b53_mmap_read16(dev, page, reg + 4, &hi);
+
+ *val = ((u64)hi << 32) | lo;
+ }
+
+ return 0;
+}
+
+static int b53_mmap_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ u32 hi, lo;
+
+ if (WARN_ON(reg % 4))
+ return -EINVAL;
+
+ b53_mmap_read32(dev, page, reg, &lo);
+ b53_mmap_read32(dev, page, reg + 4, &hi);
+
+ *val = ((u64)hi << 32) | lo;
+
+ return 0;
+}
+
+static int b53_mmap_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
+{
+ u8 __iomem *regs = dev->priv;
+
+ writeb(value, regs + (page << 8) + reg);
+
+ return 0;
+}
+
+static int b53_mmap_write16(struct b53_device *dev, u8 page, u8 reg,
+ u16 value)
+{
+ u8 __iomem *regs = dev->priv;
+
+ if (WARN_ON(reg % 2))
+ return -EINVAL;
+
+ if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) && dev->pdata &&
+ dev->pdata->big_endian)
+ __raw_writew(value, regs + (page << 8) + reg);
+ else
+ writew(value, regs + (page << 8) + reg);
+
+ return 0;
+}
+
+static int b53_mmap_write32(struct b53_device *dev, u8 page, u8 reg,
+ u32 value)
+{
+ u8 __iomem *regs = dev->priv;
+
+ if (WARN_ON(reg % 4))
+ return -EINVAL;
+
+ if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) && dev->pdata &&
+ dev->pdata->big_endian)
+ __raw_writel(value, regs + (page << 8) + reg);
+ else
+ writel(value, regs + (page << 8) + reg);
+
+ return 0;
+}
+
+static int b53_mmap_write48(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ if (WARN_ON(reg % 2))
+ return -EINVAL;
+
+ if (reg % 4) {
+ u32 hi = (u32)(value >> 16);
+ u16 lo = (u16)value;
+
+ b53_mmap_write16(dev, page, reg, lo);
+ b53_mmap_write32(dev, page, reg + 2, hi);
+ } else {
+ u16 hi = (u16)(value >> 32);
+ u32 lo = (u32)value;
+
+ b53_mmap_write32(dev, page, reg, lo);
+ b53_mmap_write16(dev, page, reg + 4, hi);
+ }
+
+ return 0;
+}
+
+static int b53_mmap_write64(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ u32 hi, lo;
+
+ hi = upper_32_bits(value);
+ lo = lower_32_bits(value);
+
+ if (WARN_ON(reg % 4))
+ return -EINVAL;
+
+ b53_mmap_write32(dev, page, reg, lo);
+ b53_mmap_write32(dev, page, reg + 4, hi);
+
+ return 0;
+}
+
+static struct b53_io_ops b53_mmap_ops = {
+ .read8 = b53_mmap_read8,
+ .read16 = b53_mmap_read16,
+ .read32 = b53_mmap_read32,
+ .read48 = b53_mmap_read48,
+ .read64 = b53_mmap_read64,
+ .write8 = b53_mmap_write8,
+ .write16 = b53_mmap_write16,
+ .write32 = b53_mmap_write32,
+ .write48 = b53_mmap_write48,
+ .write64 = b53_mmap_write64,
+};
+
+static int b53_mmap_probe(struct platform_device *pdev)
+{
+ struct b53_platform_data *pdata = pdev->dev.platform_data;
+ struct b53_device *dev;
+
+ if (!pdata)
+ return -EINVAL;
+
+ dev = b53_switch_alloc(&pdev->dev, &b53_mmap_ops, pdata->regs);
+ if (!dev)
+ return -ENOMEM;
+
+ if (pdata)
+ dev->pdata = pdata;
+
+ platform_set_drvdata(pdev, dev);
+
+ return b53_switch_register(dev);
+}
+
+static int b53_mmap_remove(struct platform_device *pdev)
+{
+ struct b53_device *dev = platform_get_drvdata(pdev);
+
+ if (dev)
+ b53_switch_remove(dev);
+
+ return 0;
+}
+
+static const struct of_device_id b53_mmap_of_table[] = {
+ { .compatible = "brcm,bcm3384-switch" },
+ { .compatible = "brcm,bcm6328-switch" },
+ { .compatible = "brcm,bcm6368-switch" },
+ { .compatible = "brcm,bcm63xx-switch" },
+ { /* sentinel */ },
+};
+
+static struct platform_driver b53_mmap_driver = {
+ .probe = b53_mmap_probe,
+ .remove = b53_mmap_remove,
+ .driver = {
+ .name = "b53-switch",
+ .of_match_table = b53_mmap_of_table,
+ },
+};
+
+module_platform_driver(b53_mmap_driver);
+MODULE_AUTHOR("Jonas Gorski <jogo@...nwrt.org>");
+MODULE_DESCRIPTION("B53 MMAP access driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
new file mode 100644
index 000000000000..c4844155546b
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_priv.h
@@ -0,0 +1,322 @@
+/*
+ * B53 common definitions
+ *
+ * Copyright (C) 2011-2013 Jonas Gorski <jogo@...nwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __B53_PRIV_H
+#define __B53_PRIV_H
+
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/phy.h>
+#include <net/dsa.h>
+
+struct b53_device;
+
+struct b53_io_ops {
+ int (*read8)(struct b53_device *dev, u8 page, u8 reg, u8 *value);
+ int (*read16)(struct b53_device *dev, u8 page, u8 reg, u16 *value);
+ int (*read32)(struct b53_device *dev, u8 page, u8 reg, u32 *value);
+ int (*read48)(struct b53_device *dev, u8 page, u8 reg, u64 *value);
+ int (*read64)(struct b53_device *dev, u8 page, u8 reg, u64 *value);
+ int (*write8)(struct b53_device *dev, u8 page, u8 reg, u8 value);
+ int (*write16)(struct b53_device *dev, u8 page, u8 reg, u16 value);
+ int (*write32)(struct b53_device *dev, u8 page, u8 reg, u32 value);
+ int (*write48)(struct b53_device *dev, u8 page, u8 reg, u64 value);
+ int (*write64)(struct b53_device *dev, u8 page, u8 reg, u64 value);
+ int (*phy_read16)(struct b53_device *dev, int addr, int reg, u16 *value);
+ int (*phy_write16)(struct b53_device *dev, int addr, int reg, u16 value);
+};
+
+enum {
+ BCM5325_DEVICE_ID = 0x25,
+ BCM5365_DEVICE_ID = 0x65,
+ BCM5395_DEVICE_ID = 0x95,
+ BCM5397_DEVICE_ID = 0x97,
+ BCM5398_DEVICE_ID = 0x98,
+ BCM53115_DEVICE_ID = 0x53115,
+ BCM53125_DEVICE_ID = 0x53125,
+ BCM53128_DEVICE_ID = 0x53128,
+ BCM63XX_DEVICE_ID = 0x6300,
+ BCM53010_DEVICE_ID = 0x53010,
+ BCM53011_DEVICE_ID = 0x53011,
+ BCM53012_DEVICE_ID = 0x53012,
+ BCM53018_DEVICE_ID = 0x53018,
+ BCM53019_DEVICE_ID = 0x53019,
+};
+
+#define B53_N_PORTS 9
+#define B53_N_PORTS_25 6
+
+struct b53_port {
+};
+
+struct b53_device {
+ struct dsa_switch *ds;
+ struct b53_platform_data *pdata;
+ const char *name;
+
+ struct mutex reg_mutex;
+ struct mutex stats_mutex;
+ const struct b53_io_ops *ops;
+
+ /* chip specific data */
+ u32 chip_id;
+ u8 core_rev;
+ u8 vta_regs[3];
+ u8 duplex_reg;
+ u8 jumbo_pm_reg;
+ u8 jumbo_size_reg;
+ int reset_gpio;
+
+ /* used ports mask */
+ u16 enabled_ports;
+ unsigned int cpu_port;
+
+ /* connect specific data */
+ u8 current_page;
+ struct device *dev;
+
+ /* Master MDIO bus we got probed from */
+ struct mii_bus *bus;
+
+ /* Slave MDIO bus we created */
+ struct mii_bus *slave_bus;
+ void *priv;
+
+ /* run time configuration */
+ unsigned enable_jumbo:1;
+ unsigned allow_vid_4095:1;
+ unsigned int num_vlans;
+ unsigned int num_ports;
+ struct b53_port *ports;
+};
+
+#define b53_for_each_port(dev, i) \
+ for (i = 0; i < B53_N_PORTS; i++) \
+ if (dev->enabled_ports & BIT(i))
+
+
+static inline int is5325(struct b53_device *dev)
+{
+ return dev->chip_id == BCM5325_DEVICE_ID;
+}
+
+static inline int is5365(struct b53_device *dev)
+{
+#ifdef CONFIG_BCM47XX
+ return dev->chip_id == BCM5365_DEVICE_ID;
+#else
+ return 0;
+#endif
+}
+
+static inline int is5397_98(struct b53_device *dev)
+{
+ return dev->chip_id == BCM5397_DEVICE_ID ||
+ dev->chip_id == BCM5398_DEVICE_ID;
+}
+
+static inline int is539x(struct b53_device *dev)
+{
+ return dev->chip_id == BCM5395_DEVICE_ID ||
+ dev->chip_id == BCM5397_DEVICE_ID ||
+ dev->chip_id == BCM5398_DEVICE_ID;
+}
+
+static inline int is531x5(struct b53_device *dev)
+{
+ return dev->chip_id == BCM53115_DEVICE_ID ||
+ dev->chip_id == BCM53125_DEVICE_ID ||
+ dev->chip_id == BCM53128_DEVICE_ID;
+}
+
+static inline int is63xx(struct b53_device *dev)
+{
+#ifdef CONFIG_BCM63XX
+ return dev->chip_id == BCM63XX_DEVICE_ID;
+#else
+ return 0;
+#endif
+}
+
+static inline int is5301x(struct b53_device *dev)
+{
+ return dev->chip_id == BCM53010_DEVICE_ID ||
+ dev->chip_id == BCM53011_DEVICE_ID ||
+ dev->chip_id == BCM53012_DEVICE_ID ||
+ dev->chip_id == BCM53018_DEVICE_ID ||
+ dev->chip_id == BCM53019_DEVICE_ID;
+}
+
+#define B53_CPU_PORT_25 5
+#define B53_CPU_PORT 8
+
+static inline int is_cpu_port(struct b53_device *dev, int port)
+{
+ return dev->cpu_port;
+}
+
+struct b53_device *b53_switch_alloc(struct device *base, struct b53_io_ops *ops,
+ void *priv);
+
+int b53_switch_detect(struct b53_device *dev);
+
+int b53_switch_register(struct b53_device *dev);
+
+static inline void b53_switch_remove(struct b53_device *dev)
+{
+ dsa_unregister_switch(dev->ds);
+}
+
+static inline int b53_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->read8(dev, page, reg, val);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->read16(dev, page, reg, val);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->read32(dev, page, reg, val);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->read48(dev, page, reg, val);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->read64(dev, page, reg, val);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->write8(dev, page, reg, value);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_write16(struct b53_device *dev, u8 page, u8 reg,
+ u16 value)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->write16(dev, page, reg, value);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_write32(struct b53_device *dev, u8 page, u8 reg,
+ u32 value)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->write32(dev, page, reg, value);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_write48(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->write48(dev, page, reg, value);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+static inline int b53_write64(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ int ret;
+
+ mutex_lock(&dev->reg_mutex);
+ ret = dev->ops->write64(dev, page, reg, value);
+ mutex_unlock(&dev->reg_mutex);
+
+ return ret;
+}
+
+#ifdef CONFIG_BCM47XX
+
+#include <linux/version.h>
+#include <linux/bcm47xx_nvram.h>
+#include <bcm47xx_board.h>
+static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
+{
+ enum bcm47xx_board board = bcm47xx_board_get();
+
+ switch (board) {
+ case BCM47XX_BOARD_LINKSYS_WRT300NV11:
+ case BCM47XX_BOARD_LINKSYS_WRT310NV1:
+ return 8;
+ default:
+ return bcm47xx_nvram_gpio_pin("robo_reset");
+ }
+}
+#else
+static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
+{
+ return -ENOENT;
+}
+#endif
+#endif
diff --git a/drivers/net/dsa/b53/b53_regs.h b/drivers/net/dsa/b53/b53_regs.h
new file mode 100644
index 000000000000..ccf8af7717d3
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_regs.h
@@ -0,0 +1,358 @@
+/*
+ * B53 register definitions
+ *
+ * Copyright (C) 2004 Broadcom Corporation
+ * Copyright (C) 2011-2013 Jonas Gorski <jogo@...nwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __B53_REGS_H
+#define __B53_REGS_H
+
+/* Management Port (SMP) Page offsets */
+#define B53_CTRL_PAGE 0x00 /* Control */
+#define B53_STAT_PAGE 0x01 /* Status */
+#define B53_MGMT_PAGE 0x02 /* Management Mode */
+#define B53_MIB_AC_PAGE 0x03 /* MIB Autocast */
+#define B53_ARLCTRL_PAGE 0x04 /* ARL Control */
+#define B53_ARLIO_PAGE 0x05 /* ARL Access */
+#define B53_FRAMEBUF_PAGE 0x06 /* Management frame access */
+#define B53_MEM_ACCESS_PAGE 0x08 /* Memory access */
+
+/* PHY Registers */
+#define B53_PORT_MII_PAGE(i) (0x10 + (i)) /* Port i MII Registers */
+#define B53_IM_PORT_PAGE 0x18 /* Inverse MII Port (to EMAC) */
+#define B53_ALL_PORT_PAGE 0x19 /* All ports MII (broadcast) */
+
+/* MIB registers */
+#define B53_MIB_PAGE(i) (0x20 + (i))
+
+/* Quality of Service (QoS) Registers */
+#define B53_QOS_PAGE 0x30
+
+/* Port VLAN Page */
+#define B53_PVLAN_PAGE 0x31
+
+/* VLAN Registers */
+#define B53_VLAN_PAGE 0x34
+
+/* Jumbo Frame Registers */
+#define B53_JUMBO_PAGE 0x40
+
+/* CFP Configuration Registers Page */
+#define B53_CFP_PAGE 0xa1
+
+/*************************************************************************
+ * Control Page registers
+ *************************************************************************/
+
+/* Port Control Register (8 bit) */
+#define B53_PORT_CTRL(i) (0x00 + (i))
+#define PORT_CTRL_RX_DISABLE BIT(0)
+#define PORT_CTRL_TX_DISABLE BIT(1)
+#define PORT_CTRL_RX_BCST_EN BIT(2) /* Broadcast RX (P8 only) */
+#define PORT_CTRL_RX_MCST_EN BIT(3) /* Multicast RX (P8 only) */
+#define PORT_CTRL_RX_UCST_EN BIT(4) /* Unicast RX (P8 only) */
+#define PORT_CTRL_STP_STATE_S 5
+#define PORT_CTRL_STP_STATE_MASK (0x7 << PORT_CTRL_STP_STATE_S)
+
+/* SMP Control Register (8 bit) */
+#define B53_SMP_CTRL 0x0a
+
+/* Switch Mode Control Register (8 bit) */
+#define B53_SWITCH_MODE 0x0b
+#define SM_SW_FWD_MODE BIT(0) /* 1 = Managed Mode */
+#define SM_SW_FWD_EN BIT(1) /* Forwarding Enable */
+
+/* IMP Port state override register (8 bit) */
+#define B53_PORT_OVERRIDE_CTRL 0x0e
+#define PORT_OVERRIDE_LINK BIT(0)
+#define PORT_OVERRIDE_FULL_DUPLEX BIT(1) /* 0 = Half Duplex */
+#define PORT_OVERRIDE_SPEED_S 2
+#define PORT_OVERRIDE_SPEED_10M (0 << PORT_OVERRIDE_SPEED_S)
+#define PORT_OVERRIDE_SPEED_100M (1 << PORT_OVERRIDE_SPEED_S)
+#define PORT_OVERRIDE_SPEED_1000M (2 << PORT_OVERRIDE_SPEED_S)
+#define PORT_OVERRIDE_RV_MII_25 BIT(4) /* BCM5325 only */
+#define PORT_OVERRIDE_RX_FLOW BIT(4)
+#define PORT_OVERRIDE_TX_FLOW BIT(5)
+#define PORT_OVERRIDE_SPEED_2000M BIT(6) /* BCM5301X only, requires setting 1000M */
+#define PORT_OVERRIDE_EN BIT(7) /* Use the register contents */
+
+/* Power-down mode control */
+#define B53_PD_MODE_CTRL_25 0x0f
+
+/* IP Multicast control (8 bit) */
+#define B53_IP_MULTICAST_CTRL 0x21
+#define B53_IPMC_FWD_EN BIT(1)
+#define B53_UC_FWD_EN BIT(6)
+#define B53_MC_FWD_EN BIT(7)
+
+/* (16 bit) */
+#define B53_UC_FLOOD_MASK 0x32
+#define B53_MC_FLOOD_MASK 0x34
+#define B53_IPMC_FLOOD_MASK 0x36
+
+/*
+ * Override Ports 0-7 State on devices with xMII interfaces (8 bit)
+ *
+ * For port 8 still use B53_PORT_OVERRIDE_CTRL
+ * Please note that not all ports are available on every hardware, e.g. BCM5301X
+ * don't include overriding port 6, BCM63xx also have some limitations.
+ */
+#define B53_GMII_PORT_OVERRIDE_CTRL(i) (0x58 + (i))
+#define GMII_PO_LINK BIT(0)
+#define GMII_PO_FULL_DUPLEX BIT(1) /* 0 = Half Duplex */
+#define GMII_PO_SPEED_S 2
+#define GMII_PO_SPEED_10M (0 << GMII_PO_SPEED_S)
+#define GMII_PO_SPEED_100M (1 << GMII_PO_SPEED_S)
+#define GMII_PO_SPEED_1000M (2 << GMII_PO_SPEED_S)
+#define GMII_PO_RX_FLOW BIT(4)
+#define GMII_PO_TX_FLOW BIT(5)
+#define GMII_PO_EN BIT(6) /* Use the register contents */
+#define GMII_PO_SPEED_2000M BIT(7) /* BCM5301X only, requires setting 1000M */
+
+#define B53_RGMII_CTRL_IMP 0x60
+#define RGMII_CTRL_ENABLE_GMII BIT(7)
+#define RGMII_CTRL_TIMING_SEL BIT(2)
+#define RGMII_CTRL_DLL_RXC BIT(1)
+#define RGMII_CTRL_DLL_TXC BIT(0)
+
+#define B53_RGMII_CTRL_P(i) (B53_RGMII_CTRL_IMP + (i))
+
+/* Software reset register (8 bit) */
+#define B53_SOFTRESET 0x79
+#define SW_RST BIT(7)
+#define EN_SW_RST BIT(4)
+
+/* Fast Aging Control register (8 bit) */
+#define B53_FAST_AGE_CTRL 0x88
+#define FAST_AGE_STATIC BIT(0)
+#define FAST_AGE_DYNAMIC BIT(1)
+#define FAST_AGE_PORT BIT(2)
+#define FAST_AGE_VLAN BIT(3)
+#define FAST_AGE_STP BIT(4)
+#define FAST_AGE_MC BIT(5)
+#define FAST_AGE_DONE BIT(7)
+
+/*************************************************************************
+ * Status Page registers
+ *************************************************************************/
+
+/* Link Status Summary Register (16bit) */
+#define B53_LINK_STAT 0x00
+
+/* Link Status Change Register (16 bit) */
+#define B53_LINK_STAT_CHANGE 0x02
+
+/* Port Speed Summary Register (16 bit for FE, 32 bit for GE) */
+#define B53_SPEED_STAT 0x04
+#define SPEED_PORT_FE(reg, port) (((reg) >> (port)) & 1)
+#define SPEED_PORT_GE(reg, port) (((reg) >> 2 * (port)) & 3)
+#define SPEED_STAT_10M 0
+#define SPEED_STAT_100M 1
+#define SPEED_STAT_1000M 2
+
+/* Duplex Status Summary (16 bit) */
+#define B53_DUPLEX_STAT_FE 0x06
+#define B53_DUPLEX_STAT_GE 0x08
+#define B53_DUPLEX_STAT_63XX 0x0c
+
+/* Revision ID register for BCM5325 */
+#define B53_REV_ID_25 0x50
+
+/* Strap Value (48 bit) */
+#define B53_STRAP_VALUE 0x70
+#define SV_GMII_CTRL_115 BIT(27)
+
+/*************************************************************************
+ * Management Mode Page Registers
+ *************************************************************************/
+
+/* Global Management Config Register (8 bit) */
+#define B53_GLOBAL_CONFIG 0x00
+#define GC_RESET_MIB 0x01
+#define GC_RX_BPDU_EN 0x02
+#define GC_MIB_AC_HDR_EN 0x10
+#define GC_MIB_AC_EN 0x20
+#define GC_FRM_MGMT_PORT_M 0xC0
+#define GC_FRM_MGMT_PORT_04 0x00
+#define GC_FRM_MGMT_PORT_MII 0x80
+
+/* Broadcom Header control register (8 bit) */
+#define B53_BRCM_HDR 0x03
+#define BRCM_HDR_P8_EN BIT(0) /* Enable tagging on port 8 */
+#define BRCM_HDR_P5_EN BIT(1) /* Enable tagging on port 5 */
+
+/* Device ID register (8 or 32 bit) */
+#define B53_DEVICE_ID 0x30
+
+/* Revision ID register (8 bit) */
+#define B53_REV_ID 0x40
+
+/*************************************************************************
+ * ARL Access Page Registers
+ *************************************************************************/
+
+/* VLAN Table Access Register (8 bit) */
+#define B53_VT_ACCESS 0x80
+#define B53_VT_ACCESS_9798 0x60 /* for BCM5397/BCM5398 */
+#define B53_VT_ACCESS_63XX 0x60 /* for BCM6328/62/68 */
+#define VTA_CMD_WRITE 0
+#define VTA_CMD_READ 1
+#define VTA_CMD_CLEAR 2
+#define VTA_START_CMD BIT(7)
+
+/* VLAN Table Index Register (16 bit) */
+#define B53_VT_INDEX 0x81
+#define B53_VT_INDEX_9798 0x61
+#define B53_VT_INDEX_63XX 0x62
+
+/* VLAN Table Entry Register (32 bit) */
+#define B53_VT_ENTRY 0x83
+#define B53_VT_ENTRY_9798 0x63
+#define B53_VT_ENTRY_63XX 0x64
+#define VTE_MEMBERS 0x1ff
+#define VTE_UNTAG_S 9
+#define VTE_UNTAG (0x1ff << 9)
+
+/*************************************************************************
+ * Port VLAN Registers
+ *************************************************************************/
+
+/* Port VLAN mask (16 bit) IMP port is always 8, also on 5325 & co */
+#define B53_PVLAN_PORT_MASK(i) ((i) * 2)
+
+/*************************************************************************
+ * 802.1Q Page Registers
+ *************************************************************************/
+
+/* Global QoS Control (8 bit) */
+#define B53_QOS_GLOBAL_CTL 0x00
+
+/* Enable 802.1Q for individual Ports (16 bit) */
+#define B53_802_1P_EN 0x04
+
+/*************************************************************************
+ * VLAN Page Registers
+ *************************************************************************/
+
+/* VLAN Control 0 (8 bit) */
+#define B53_VLAN_CTRL0 0x00
+#define VC0_8021PF_CTRL_MASK 0x3
+#define VC0_8021PF_CTRL_NONE 0x0
+#define VC0_8021PF_CTRL_CHANGE_PRI 0x1
+#define VC0_8021PF_CTRL_CHANGE_VID 0x2
+#define VC0_8021PF_CTRL_CHANGE_BOTH 0x3
+#define VC0_8021QF_CTRL_MASK 0xc
+#define VC0_8021QF_CTRL_CHANGE_PRI 0x1
+#define VC0_8021QF_CTRL_CHANGE_VID 0x2
+#define VC0_8021QF_CTRL_CHANGE_BOTH 0x3
+#define VC0_RESERVED_1 BIT(1)
+#define VC0_DROP_VID_MISS BIT(4)
+#define VC0_VID_HASH_VID BIT(5)
+#define VC0_VID_CHK_EN BIT(6) /* Use VID,DA or VID,SA */
+#define VC0_VLAN_EN BIT(7) /* 802.1Q VLAN Enabled */
+
+/* VLAN Control 1 (8 bit) */
+#define B53_VLAN_CTRL1 0x01
+#define VC1_RX_MCST_TAG_EN BIT(1)
+#define VC1_RX_MCST_FWD_EN BIT(2)
+#define VC1_RX_MCST_UNTAG_EN BIT(3)
+
+/* VLAN Control 2 (8 bit) */
+#define B53_VLAN_CTRL2 0x02
+
+/* VLAN Control 3 (8 bit when BCM5325, 16 bit else) */
+#define B53_VLAN_CTRL3 0x03
+#define B53_VLAN_CTRL3_63XX 0x04
+#define VC3_MAXSIZE_1532 BIT(6) /* 5325 only */
+#define VC3_HIGH_8BIT_EN BIT(7) /* 5325 only */
+
+/* VLAN Control 4 (8 bit) */
+#define B53_VLAN_CTRL4 0x05
+#define B53_VLAN_CTRL4_25 0x04
+#define B53_VLAN_CTRL4_63XX 0x06
+#define VC4_ING_VID_CHECK_S 6
+#define VC4_ING_VID_CHECK_MASK (0x3 << VC4_ING_VID_CHECK_S)
+#define VC4_ING_VID_VIO_FWD 0 /* forward, but do not learn */
+#define VC4_ING_VID_VIO_DROP 1 /* drop VID violations */
+#define VC4_NO_ING_VID_CHK 2 /* do not check */
+#define VC4_ING_VID_VIO_TO_IMP 3 /* redirect to MII port */
+
+/* VLAN Control 5 (8 bit) */
+#define B53_VLAN_CTRL5 0x06
+#define B53_VLAN_CTRL5_25 0x05
+#define B53_VLAN_CTRL5_63XX 0x07
+#define VC5_VID_FFF_EN BIT(2)
+#define VC5_DROP_VTABLE_MISS BIT(3)
+
+/* VLAN Control 6 (8 bit) */
+#define B53_VLAN_CTRL6 0x07
+#define B53_VLAN_CTRL6_63XX 0x08
+
+/* VLAN Table Access Register (16 bit) */
+#define B53_VLAN_TABLE_ACCESS_25 0x06 /* BCM5325E/5350 */
+#define B53_VLAN_TABLE_ACCESS_65 0x08 /* BCM5365 */
+#define VTA_VID_LOW_MASK_25 0xf
+#define VTA_VID_LOW_MASK_65 0xff
+#define VTA_VID_HIGH_S_25 4
+#define VTA_VID_HIGH_S_65 8
+#define VTA_VID_HIGH_MASK_25 (0xff << VTA_VID_HIGH_S_25E)
+#define VTA_VID_HIGH_MASK_65 (0xf << VTA_VID_HIGH_S_65)
+#define VTA_RW_STATE BIT(12)
+#define VTA_RW_STATE_RD 0
+#define VTA_RW_STATE_WR BIT(12)
+#define VTA_RW_OP_EN BIT(13)
+
+/* VLAN Read/Write Registers for (16/32 bit) */
+#define B53_VLAN_WRITE_25 0x08
+#define B53_VLAN_WRITE_65 0x0a
+#define B53_VLAN_READ 0x0c
+#define VA_MEMBER_MASK 0x3f
+#define VA_UNTAG_S_25 6
+#define VA_UNTAG_MASK_25 0x3f
+#define VA_UNTAG_S_65 7
+#define VA_UNTAG_MASK_65 0x1f
+#define VA_VID_HIGH_S 12
+#define VA_VID_HIGH_MASK (0xffff << VA_VID_HIGH_S)
+#define VA_VALID_25 BIT(20)
+#define VA_VALID_25_R4 BIT(24)
+#define VA_VALID_65 BIT(14)
+
+/* VLAN Port Default Tag (16 bit) */
+#define B53_VLAN_PORT_DEF_TAG(i) (0x10 + 2 * (i))
+
+/*************************************************************************
+ * Jumbo Frame Page Registers
+ *************************************************************************/
+
+/* Jumbo Enable Port Mask (bit i == port i enabled) (32 bit) */
+#define B53_JUMBO_PORT_MASK 0x01
+#define B53_JUMBO_PORT_MASK_63XX 0x04
+#define JPM_10_100_JUMBO_EN BIT(24) /* GigE always enabled */
+
+/* Good Frame Max Size without 802.1Q TAG (16 bit) */
+#define B53_JUMBO_MAX_SIZE 0x05
+#define B53_JUMBO_MAX_SIZE_63XX 0x08
+#define JMS_MIN_SIZE 1518
+#define JMS_MAX_SIZE 9724
+
+/*************************************************************************
+ * CFP Configuration Page Registers
+ *************************************************************************/
+
+/* CFP Control Register with ports map (8 bit) */
+#define B53_CFP_CTRL 0x00
+
+#endif /* !__B53_REGS_H */
diff --git a/drivers/net/dsa/b53/b53_spi.c b/drivers/net/dsa/b53/b53_spi.c
new file mode 100644
index 000000000000..2bda0b5f1578
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_spi.c
@@ -0,0 +1,331 @@
+/*
+ * B53 register access through SPI
+ *
+ * Copyright (C) 2011-2013 Jonas Gorski <jogo@...nwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <asm/unaligned.h>
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/platform_data/b53.h>
+
+#include "b53_priv.h"
+
+#define B53_SPI_DATA 0xf0
+
+#define B53_SPI_STATUS 0xfe
+#define B53_SPI_CMD_SPIF BIT(7)
+#define B53_SPI_CMD_RACK BIT(5)
+
+#define B53_SPI_CMD_READ 0x00
+#define B53_SPI_CMD_WRITE 0x01
+#define B53_SPI_CMD_NORMAL 0x60
+#define B53_SPI_CMD_FAST 0x10
+
+#define B53_SPI_PAGE_SELECT 0xff
+
+static inline int b53_spi_read_reg(struct spi_device *spi, u8 reg, u8 *val,
+ unsigned int len)
+{
+ u8 txbuf[2];
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_READ;
+ txbuf[1] = reg;
+
+ return spi_write_then_read(spi, txbuf, 2, val, len);
+}
+
+static inline int b53_spi_clear_status(struct spi_device *spi)
+{
+ unsigned int i;
+ u8 rxbuf;
+ int ret;
+
+ for (i = 0; i < 10; i++) {
+ ret = b53_spi_read_reg(spi, B53_SPI_STATUS, &rxbuf, 1);
+ if (ret)
+ return ret;
+
+ if (!(rxbuf & B53_SPI_CMD_SPIF))
+ break;
+
+ mdelay(1);
+ }
+
+ if (i == 10)
+ return -EIO;
+
+ return 0;
+}
+
+static inline int b53_spi_set_page(struct spi_device *spi, u8 page)
+{
+ u8 txbuf[3];
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_WRITE;
+ txbuf[1] = B53_SPI_PAGE_SELECT;
+ txbuf[2] = page;
+
+ return spi_write(spi, txbuf, sizeof(txbuf));
+}
+
+static inline int b53_prepare_reg_access(struct spi_device *spi, u8 page)
+{
+ int ret = b53_spi_clear_status(spi);
+
+ if (ret)
+ return ret;
+
+ return b53_spi_set_page(spi, page);
+}
+
+static int b53_spi_prepare_reg_read(struct spi_device *spi, u8 reg)
+{
+ u8 rxbuf;
+ int retry_count;
+ int ret;
+
+ ret = b53_spi_read_reg(spi, reg, &rxbuf, 1);
+ if (ret)
+ return ret;
+
+ for (retry_count = 0; retry_count < 10; retry_count++) {
+ ret = b53_spi_read_reg(spi, B53_SPI_STATUS, &rxbuf, 1);
+ if (ret)
+ return ret;
+
+ if (rxbuf & B53_SPI_CMD_RACK)
+ break;
+
+ mdelay(1);
+ }
+
+ if (retry_count == 10)
+ return -EIO;
+
+ return 0;
+}
+
+static int b53_spi_read(struct b53_device *dev, u8 page, u8 reg, u8 *data,
+ unsigned int len)
+{
+ struct spi_device *spi = dev->priv;
+ int ret;
+
+ ret = b53_prepare_reg_access(spi, page);
+ if (ret)
+ return ret;
+
+ ret = b53_spi_prepare_reg_read(spi, reg);
+ if (ret)
+ return ret;
+
+ return b53_spi_read_reg(spi, B53_SPI_DATA, data, len);
+}
+
+static int b53_spi_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
+{
+ return b53_spi_read(dev, page, reg, val, 1);
+}
+
+static int b53_spi_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
+{
+ int ret = b53_spi_read(dev, page, reg, (u8 *)val, 2);
+
+ if (!ret)
+ *val = le16_to_cpu(*val);
+
+ return ret;
+}
+
+static int b53_spi_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
+{
+ int ret = b53_spi_read(dev, page, reg, (u8 *)val, 4);
+
+ if (!ret)
+ *val = le32_to_cpu(*val);
+
+ return ret;
+}
+
+static int b53_spi_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ int ret;
+
+ *val = 0;
+ ret = b53_spi_read(dev, page, reg, (u8 *)val, 6);
+ if (!ret)
+ *val = le64_to_cpu(*val);
+
+ return ret;
+}
+
+static int b53_spi_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ int ret = b53_spi_read(dev, page, reg, (u8 *)val, 8);
+
+ if (!ret)
+ *val = le64_to_cpu(*val);
+
+ return ret;
+}
+
+static int b53_spi_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
+{
+ struct spi_device *spi = dev->priv;
+ int ret;
+ u8 txbuf[3];
+
+ ret = b53_prepare_reg_access(spi, page);
+ if (ret)
+ return ret;
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_WRITE;
+ txbuf[1] = reg;
+ txbuf[2] = value;
+
+ return spi_write(spi, txbuf, sizeof(txbuf));
+}
+
+static int b53_spi_write16(struct b53_device *dev, u8 page, u8 reg, u16 value)
+{
+ struct spi_device *spi = dev->priv;
+ int ret;
+ u8 txbuf[4];
+
+ ret = b53_prepare_reg_access(spi, page);
+ if (ret)
+ return ret;
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_WRITE;
+ txbuf[1] = reg;
+ put_unaligned_le16(value, &txbuf[2]);
+
+ return spi_write(spi, txbuf, sizeof(txbuf));
+}
+
+static int b53_spi_write32(struct b53_device *dev, u8 page, u8 reg, u32 value)
+{
+ struct spi_device *spi = dev->priv;
+ int ret;
+ u8 txbuf[6];
+
+ ret = b53_prepare_reg_access(spi, page);
+ if (ret)
+ return ret;
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_WRITE;
+ txbuf[1] = reg;
+ put_unaligned_le32(value, &txbuf[2]);
+
+ return spi_write(spi, txbuf, sizeof(txbuf));
+}
+
+static int b53_spi_write48(struct b53_device *dev, u8 page, u8 reg, u64 value)
+{
+ struct spi_device *spi = dev->priv;
+ int ret;
+ u8 txbuf[10];
+
+ ret = b53_prepare_reg_access(spi, page);
+ if (ret)
+ return ret;
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_WRITE;
+ txbuf[1] = reg;
+ put_unaligned_le64(value, &txbuf[2]);
+
+ return spi_write(spi, txbuf, sizeof(txbuf) - 2);
+}
+
+static int b53_spi_write64(struct b53_device *dev, u8 page, u8 reg, u64 value)
+{
+ struct spi_device *spi = dev->priv;
+ int ret;
+ u8 txbuf[10];
+
+ ret = b53_prepare_reg_access(spi, page);
+ if (ret)
+ return ret;
+
+ txbuf[0] = B53_SPI_CMD_NORMAL | B53_SPI_CMD_WRITE;
+ txbuf[1] = reg;
+ put_unaligned_le64(value, &txbuf[2]);
+
+ return spi_write(spi, txbuf, sizeof(txbuf));
+}
+
+static struct b53_io_ops b53_spi_ops = {
+ .read8 = b53_spi_read8,
+ .read16 = b53_spi_read16,
+ .read32 = b53_spi_read32,
+ .read48 = b53_spi_read48,
+ .read64 = b53_spi_read64,
+ .write8 = b53_spi_write8,
+ .write16 = b53_spi_write16,
+ .write32 = b53_spi_write32,
+ .write48 = b53_spi_write48,
+ .write64 = b53_spi_write64,
+};
+
+static int b53_spi_probe(struct spi_device *spi)
+{
+ struct b53_device *dev;
+ int ret;
+
+ dev = b53_switch_alloc(&spi->dev, &b53_spi_ops, spi);
+ if (!dev)
+ return -ENOMEM;
+
+ if (spi->dev.platform_data)
+ dev->pdata = spi->dev.platform_data;
+
+ ret = b53_switch_register(dev);
+ if (ret)
+ return ret;
+
+ spi_set_drvdata(spi, dev);
+
+ return 0;
+}
+
+static int b53_spi_remove(struct spi_device *spi)
+{
+ struct b53_device *dev = spi_get_drvdata(spi);
+
+ if (dev)
+ b53_switch_remove(dev);
+
+ return 0;
+}
+
+static struct spi_driver b53_spi_driver = {
+ .driver = {
+ .name = "b53-switch",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = b53_spi_probe,
+ .remove = b53_spi_remove,
+};
+
+module_spi_driver(b53_spi_driver);
+
+MODULE_AUTHOR("Jonas Gorski <jogo@...nwrt.org>");
+MODULE_DESCRIPTION("B53 SPI access driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/dsa/b53/b53_srab.c b/drivers/net/dsa/b53/b53_srab.c
new file mode 100644
index 000000000000..70fd47284535
--- /dev/null
+++ b/drivers/net/dsa/b53/b53_srab.c
@@ -0,0 +1,415 @@
+/*
+ * B53 register access through Switch Register Access Bridge Registers
+ *
+ * Copyright (C) 2013 Hauke Mehrtens <hauke@...ke-m.de>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/b53.h>
+
+#include "b53_priv.h"
+
+/* command and status register of the SRAB */
+#define B53_SRAB_CMDSTAT 0x2c
+#define B53_SRAB_CMDSTAT_RST BIT(2)
+#define B53_SRAB_CMDSTAT_WRITE BIT(1)
+#define B53_SRAB_CMDSTAT_GORDYN BIT(0)
+#define B53_SRAB_CMDSTAT_PAGE 24
+#define B53_SRAB_CMDSTAT_REG 16
+
+/* high order word of write data to switch registe */
+#define B53_SRAB_WD_H 0x30
+
+/* low order word of write data to switch registe */
+#define B53_SRAB_WD_L 0x34
+
+/* high order word of read data from switch register */
+#define B53_SRAB_RD_H 0x38
+
+/* low order word of read data from switch register */
+#define B53_SRAB_RD_L 0x3c
+
+/* command and status register of the SRAB */
+#define B53_SRAB_CTRLS 0x40
+#define B53_SRAB_CTRLS_RCAREQ BIT(3)
+#define B53_SRAB_CTRLS_RCAGNT BIT(4)
+#define B53_SRAB_CTRLS_SW_INIT_DONE BIT(6)
+
+/* the register captures interrupt pulses from the switch */
+#define B53_SRAB_INTR 0x44
+#define B53_SRAB_INTR_P(x) BIT(x)
+#define B53_SRAB_SWITCH_PHY BIT(8)
+#define B53_SRAB_1588_SYNC BIT(9)
+#define B53_SRAB_IMP1_SLEEP_TIMER BIT(10)
+#define B53_SRAB_P7_SLEEP_TIMER BIT(11)
+#define B53_SRAB_IMP0_SLEEP_TIMER BIT(12)
+
+struct b53_srab_priv {
+ void __iomem *regs;
+};
+
+static int b53_srab_request_grant(struct b53_device *dev)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ u32 ctrls;
+ int i;
+
+ ctrls = readl(regs + B53_SRAB_CTRLS);
+ ctrls |= B53_SRAB_CTRLS_RCAREQ;
+ writel(ctrls, regs + B53_SRAB_CTRLS);
+
+ for (i = 0; i < 20; i++) {
+ ctrls = readl(regs + B53_SRAB_CTRLS);
+ if (ctrls & B53_SRAB_CTRLS_RCAGNT)
+ break;
+ usleep_range(10, 100);
+ }
+ if (WARN_ON(i == 5))
+ return -EIO;
+
+ return 0;
+}
+
+static void b53_srab_release_grant(struct b53_device *dev)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ u32 ctrls;
+
+ ctrls = readl(regs + B53_SRAB_CTRLS);
+ ctrls &= ~B53_SRAB_CTRLS_RCAREQ;
+ writel(ctrls, regs + B53_SRAB_CTRLS);
+}
+
+static int b53_srab_op(struct b53_device *dev, u8 page, u8 reg, u32 op)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int i;
+ u32 cmdstat;
+
+ /* set register address */
+ cmdstat = (page << B53_SRAB_CMDSTAT_PAGE) |
+ (reg << B53_SRAB_CMDSTAT_REG) |
+ B53_SRAB_CMDSTAT_GORDYN |
+ op;
+ writel(cmdstat, regs + B53_SRAB_CMDSTAT);
+
+ /* check if operation completed */
+ for (i = 0; i < 5; ++i) {
+ cmdstat = readl(regs + B53_SRAB_CMDSTAT);
+ if (!(cmdstat & B53_SRAB_CMDSTAT_GORDYN))
+ break;
+ usleep_range(10, 100);
+ }
+
+ if (WARN_ON(i == 5))
+ return -EIO;
+
+ return 0;
+}
+
+static int b53_srab_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L) & 0xff;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L) & 0xffff;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L);
+ *val += ((u64)readl(regs + B53_SRAB_RD_H) & 0xffff) << 32;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ ret = b53_srab_op(dev, page, reg, 0);
+ if (ret)
+ goto err;
+
+ *val = readl(regs + B53_SRAB_RD_L);
+ *val += (u64)readl(regs + B53_SRAB_RD_H) << 32;
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel(value, regs + B53_SRAB_WD_L);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write16(struct b53_device *dev, u8 page, u8 reg,
+ u16 value)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel(value, regs + B53_SRAB_WD_L);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write32(struct b53_device *dev, u8 page, u8 reg,
+ u32 value)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel(value, regs + B53_SRAB_WD_L);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write48(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel((u32)value, regs + B53_SRAB_WD_L);
+ writel((u16)(value >> 32), regs + B53_SRAB_WD_H);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static int b53_srab_write64(struct b53_device *dev, u8 page, u8 reg,
+ u64 value)
+{
+ struct b53_srab_priv *priv = dev->priv;
+ u8 __iomem *regs = priv->regs;
+ int ret = 0;
+
+ ret = b53_srab_request_grant(dev);
+ if (ret)
+ goto err;
+
+ writel((u32)value, regs + B53_SRAB_WD_L);
+ writel((u32)(value >> 32), regs + B53_SRAB_WD_H);
+
+ ret = b53_srab_op(dev, page, reg, B53_SRAB_CMDSTAT_WRITE);
+
+err:
+ b53_srab_release_grant(dev);
+
+ return ret;
+}
+
+static struct b53_io_ops b53_srab_ops = {
+ .read8 = b53_srab_read8,
+ .read16 = b53_srab_read16,
+ .read32 = b53_srab_read32,
+ .read48 = b53_srab_read48,
+ .read64 = b53_srab_read64,
+ .write8 = b53_srab_write8,
+ .write16 = b53_srab_write16,
+ .write32 = b53_srab_write32,
+ .write48 = b53_srab_write48,
+ .write64 = b53_srab_write64,
+};
+
+static int b53_srab_probe(struct platform_device *pdev)
+{
+ struct b53_srab_priv *priv;
+ struct b53_device *dev;
+ struct resource *r;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->regs = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(priv->regs))
+ return -ENOMEM;
+
+ dev = b53_switch_alloc(&pdev->dev, &b53_srab_ops, priv);
+ if (!dev)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, dev);
+
+ return b53_switch_register(dev);
+}
+
+static int b53_srab_remove(struct platform_device *pdev)
+{
+ struct b53_device *dev = platform_get_drvdata(pdev);
+
+ if (dev)
+ b53_switch_remove(dev);
+
+ return 0;
+}
+
+static const struct of_device_id b53_srab_of_match[] = {
+ { .compatible = "brcm,bcm53010-srab" },
+ { .compatible = "brcm,bcm53011-srab" },
+ { .compatible = "brcm,bcm53012-srab" },
+ { .compatible = "brcm,bcm53018-srab" },
+ { .compatible = "brcm,bcm53019-srab" },
+ { .compatible = "brcm,bcm5301x-srab" },
+ { /* sentinel */ },
+};
+
+static struct platform_driver b53_srab_driver = {
+ .probe = b53_srab_probe,
+ .remove = b53_srab_remove,
+ .driver = {
+ .name = "b53-srab-switch",
+ .of_match_table = b53_srab_of_match,
+ },
+};
+
+module_platform_driver(b53_srab_driver);
+MODULE_AUTHOR("Hauke Mehrtens <hauke@...ke-m.de>");
+MODULE_DESCRIPTION("B53 Switch Register Access Bridge Registers (SRAB) access driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/include/linux/platform_data/b53.h b/include/linux/platform_data/b53.h
new file mode 100644
index 000000000000..69d279c0da96
--- /dev/null
+++ b/include/linux/platform_data/b53.h
@@ -0,0 +1,33 @@
+/*
+ * B53 platform data
+ *
+ * Copyright (C) 2013 Jonas Gorski <jogo@...nwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __B53_H
+#define __B53_H
+
+#include <linux/kernel.h>
+
+struct b53_platform_data {
+ u32 chip_id;
+ u16 enabled_ports;
+
+ /* only used by MMAP'd driver */
+ unsigned big_endian:1;
+ void __iomem *regs;
+};
+
+#endif
--
2.7.4
Powered by blists - more mailing lists