Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Justin Chen <justin.chen@broadcom.com>
To:     netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        bcm-kernel-feedback-list@broadcom.com
Cc:     florian.fainelli@broadcom.com, davem@davemloft.net,
        edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        conor+dt@kernel.org, opendmb@gmail.com, andrew@lunn.ch,
        hkallweit1@gmail.com, linux@armlinux.org.uk,
        richardcochran@gmail.com, sumit.semwal@linaro.org,
        simon.horman@corigine.com, christian.koenig@amd.com,
        Justin Chen <justin.chen@broadcom.com>
Subject: [net-next v9 03/11] net: bcmasp: Add support for ASP2.0 Ethernet controller
Date:   Thu, 13 Jul 2023 15:18:58 -0700
Message-Id: <1689286746-43609-4-git-send-email-justin.chen@broadcom.com>
In-Reply-To: <1689286746-43609-1-git-send-email-justin.chen@broadcom.com>
References: <1689286746-43609-1-git-send-email-justin.chen@broadcom.com>
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256;
        boundary="000000000000559e73060065b9ea"
Precedence: bulk

--000000000000559e73060065b9ea

Add support for the Broadcom ASP 2.0 Ethernet controller which is first
introduced with 72165. This controller features two distinct Ethernet
ports that can be independently operated.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
---
v9
        - Reworked logic where a port fails to register during probe
        - Switch from array to linked list for interfaces. This simplifies
          the logic and makes it a bit cleaner to follow.
        - Check for case where remove and shutdown hook both get called.
        - Use skb_cow_head instead of skb_realloc_headroom
        - Add ratelimit for some err prints.
	- Use napi_alloc_skb instead of __netdev_alloc_skb().
	- Reworked some rtnl_link_stats64 according to documentation.

v8
	- Address some checkpatch warnings

v7
	- Fixed leaking ports_node device node.
	- Split out to smaller commits

v6
	- Fixed a reserved mac filter indexing error
	- Removed tx_lock
	- Simplified tx_timeout hook
	- Removed get_stats
	- Fixed phy ioctl
	- Fixed dev -> ndev typo
	- Fixed set_wol double disable

v5
	- Remove unnecessary parenthesis
	- Use bool for bcmasp_netfilt_check_dup()

v4
        - Address sparse warnings
        - Fix one more reverse xmas tree violation
        - Improve error logic for bcmasp_netfilt_get_reg_offset()
	- Remove inlines

v3
        - Fix logic error with net stats where some stats were missing
        - General clean up addressing formatting/spelling/consistency
        - Use dev_err_probe to save a few LoCs
        - Use put_unaligned when updating net stats

v2
        - Replace a couple functions with helper functions
        - Fix a few WoL issues

 drivers/net/ethernet/broadcom/Kconfig              |   11 +
 drivers/net/ethernet/broadcom/Makefile             |    1 +
 drivers/net/ethernet/broadcom/asp2/Makefile        |    2 +
 drivers/net/ethernet/broadcom/asp2/bcmasp.c        |  696 ++++++++++
 drivers/net/ethernet/broadcom/asp2/bcmasp.h        |  503 ++++++++
 .../net/ethernet/broadcom/asp2/bcmasp_ethtool.c    |   40 +
 drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c   | 1342 ++++++++++++++++++++
 .../net/ethernet/broadcom/asp2/bcmasp_intf_defs.h  |  196 +++
 8 files changed, 2791 insertions(+)
 create mode 100644 drivers/net/ethernet/broadcom/asp2/Makefile
 create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp.c
 create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp.h
 create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
 create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
 create mode 100644 drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h

diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index 948586bf1b5b..d4166141145d 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -255,4 +255,15 @@ config BNXT_HWMON
 	  Say Y if you want to expose the thermal sensor data on NetXtreme-C/E
 	  devices, via the hwmon sysfs interface.
 
+config BCMASP
+	tristate "Broadcom ASP 2.0 Ethernet support"
+	default ARCH_BRCMSTB
+	depends on OF
+	select MII
+	select PHYLIB
+	select MDIO_BCM_UNIMAC
+	help
+	  This configuration enables the Broadcom ASP 2.0 Ethernet controller
+	  driver which is present in Broadcom STB SoCs such as 72165.
+
 endif # NET_VENDOR_BROADCOM
diff --git a/drivers/net/ethernet/broadcom/Makefile b/drivers/net/ethernet/broadcom/Makefile
index 0ddfb5b5d53c..bac5cb6ad0cd 100644
--- a/drivers/net/ethernet/broadcom/Makefile
+++ b/drivers/net/ethernet/broadcom/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_BGMAC_BCMA) += bgmac-bcma.o bgmac-bcma-mdio.o
 obj-$(CONFIG_BGMAC_PLATFORM) += bgmac-platform.o
 obj-$(CONFIG_SYSTEMPORT) += bcmsysport.o
 obj-$(CONFIG_BNXT) += bnxt/
+obj-$(CONFIG_BCMASP) += asp2/
diff --git a/drivers/net/ethernet/broadcom/asp2/Makefile b/drivers/net/ethernet/broadcom/asp2/Makefile
new file mode 100644
index 000000000000..e07550315f83
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_BCMASP) += bcm-asp.o
+bcm-asp-objs := bcmasp.o bcmasp_intf.o bcmasp_ethtool.o
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
new file mode 100644
index 000000000000..83494641b545
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -0,0 +1,696 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Broadcom STB ASP 2.0 Driver
+ *
+ * Copyright (c) 2023 Broadcom
+ */
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/clk.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static void _intr2_mask_clear(struct bcmasp_priv *priv, u32 mask)
+{
+	intr2_core_wl(priv, mask, ASP_INTR2_MASK_CLEAR);
+	priv->irq_mask &= ~mask;
+}
+
+static void _intr2_mask_set(struct bcmasp_priv *priv, u32 mask)
+{
+	intr2_core_wl(priv, mask, ASP_INTR2_MASK_SET);
+	priv->irq_mask |= mask;
+}
+
+void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en)
+{
+	struct bcmasp_priv *priv = intf->parent;
+
+	if (en)
+		_intr2_mask_clear(priv, ASP_INTR2_TX_DESC(intf->channel));
+	else
+		_intr2_mask_set(priv, ASP_INTR2_TX_DESC(intf->channel));
+}
+EXPORT_SYMBOL_GPL(bcmasp_enable_tx_irq);
+
+void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en)
+{
+	struct bcmasp_priv *priv = intf->parent;
+
+	if (en)
+		_intr2_mask_clear(priv, ASP_INTR2_RX_ECH(intf->channel));
+	else
+		_intr2_mask_set(priv, ASP_INTR2_RX_ECH(intf->channel));
+}
+EXPORT_SYMBOL_GPL(bcmasp_enable_rx_irq);
+
+static void bcmasp_intr2_mask_set_all(struct bcmasp_priv *priv)
+{
+	_intr2_mask_set(priv, 0xffffffff);
+	priv->irq_mask = 0xffffffff;
+}
+
+static void bcmasp_intr2_clear_all(struct bcmasp_priv *priv)
+{
+	intr2_core_wl(priv, 0xffffffff, ASP_INTR2_CLEAR);
+}
+
+static void bcmasp_intr2_handling(struct bcmasp_intf *intf, u32 status)
+{
+	if (status & ASP_INTR2_RX_ECH(intf->channel)) {
+		if (likely(napi_schedule_prep(&intf->rx_napi))) {
+			bcmasp_enable_rx_irq(intf, 0);
+			__napi_schedule_irqoff(&intf->rx_napi);
+		}
+	}
+
+	if (status & ASP_INTR2_TX_DESC(intf->channel)) {
+		if (likely(napi_schedule_prep(&intf->tx_napi))) {
+			bcmasp_enable_tx_irq(intf, 0);
+			__napi_schedule_irqoff(&intf->tx_napi);
+		}
+	}
+}
+
+static irqreturn_t bcmasp_isr(int irq, void *data)
+{
+	struct bcmasp_priv *priv = data;
+	struct bcmasp_intf *intf;
+	u32 status;
+
+	status = intr2_core_rl(priv, ASP_INTR2_STATUS) &
+		~intr2_core_rl(priv, ASP_INTR2_MASK_STATUS);
+
+	intr2_core_wl(priv, status, ASP_INTR2_CLEAR);
+
+	if (unlikely(status == 0)) {
+		dev_warn(&priv->pdev->dev, "l2 spurious interrupt\n");
+		return IRQ_NONE;
+	}
+
+	/* Handle intferfaces */
+	list_for_each_entry(intf, &priv->intfs, list)
+		bcmasp_intr2_handling(intf, status);
+
+	return IRQ_HANDLED;
+}
+
+void bcmasp_flush_rx_port(struct bcmasp_intf *intf)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	u32 mask;
+
+	switch (intf->port) {
+	case 0:
+		mask = ASP_CTRL_UMAC0_FLUSH_MASK;
+		break;
+	case 1:
+		mask = ASP_CTRL_UMAC1_FLUSH_MASK;
+		break;
+	case 2:
+		mask = ASP_CTRL_SPB_FLUSH_MASK;
+		break;
+	default:
+		/* Not valid port */
+		return;
+	}
+
+	rx_ctrl_core_wl(priv, mask, priv->hw_info->rx_ctrl_flush);
+}
+
+static void bcmasp_addr_to_uint(unsigned char *addr, u32 *high, u32 *low)
+{
+	*high = (u32)(addr[0] << 8 | addr[1]);
+	*low = (u32)(addr[2] << 24 | addr[3] << 16 | addr[4] << 8 |
+		     addr[5]);
+}
+
+static void bcmasp_set_mda_filter(struct bcmasp_intf *intf,
+				  const unsigned char *addr,
+				  unsigned char *mask,
+				  unsigned int i)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	u32 addr_h, addr_l, mask_h, mask_l;
+
+	/* Set local copy */
+	ether_addr_copy(priv->mda_filters[i].mask, mask);
+	ether_addr_copy(priv->mda_filters[i].addr, addr);
+
+	/* Write to HW */
+	bcmasp_addr_to_uint(priv->mda_filters[i].mask, &mask_h, &mask_l);
+	bcmasp_addr_to_uint(priv->mda_filters[i].addr, &addr_h, &addr_l);
+	rx_filter_core_wl(priv, addr_h, ASP_RX_FILTER_MDA_PAT_H(i));
+	rx_filter_core_wl(priv, addr_l, ASP_RX_FILTER_MDA_PAT_L(i));
+	rx_filter_core_wl(priv, mask_h, ASP_RX_FILTER_MDA_MSK_H(i));
+	rx_filter_core_wl(priv, mask_l, ASP_RX_FILTER_MDA_MSK_L(i));
+}
+
+static void bcmasp_en_mda_filter(struct bcmasp_intf *intf, bool en,
+				 unsigned int i)
+{
+	struct bcmasp_priv *priv = intf->parent;
+
+	if (priv->mda_filters[i].en == en)
+		return;
+
+	priv->mda_filters[i].en = en;
+	priv->mda_filters[i].port = intf->port;
+
+	rx_filter_core_wl(priv, ((intf->channel + 8) |
+			  (en << ASP_RX_FILTER_MDA_CFG_EN_SHIFT) |
+			  ASP_RX_FILTER_MDA_CFG_UMC_SEL(intf->port)),
+			  ASP_RX_FILTER_MDA_CFG(i));
+}
+
+/* There are 32 MDA filters shared between all ports, we reserve 4 filters per
+ * port for the following.
+ * - Promisc: Filter to allow all packets when promisc is enabled
+ * - All Multicast
+ * - Broadcast
+ * - Own address
+ *
+ * The reserved filters are identified as so.
+ * - Promisc: (index * 4) + 0
+ * - All Multicast: (index * 4) + 1
+ * - Broadcast: (index * 4) + 2
+ * - Own address: (index * 4) + 3
+ */
+enum asp_rx_filter_id {
+	ASP_RX_FILTER_MDA_PROMISC = 0,
+	ASP_RX_FILTER_MDA_ALLMULTI,
+	ASP_RX_FILTER_MDA_BROADCAST,
+	ASP_RX_FILTER_MDA_OWN_ADDR,
+	ASP_RX_FILTER_MDA_RES_MAX,
+};
+
+#define ASP_RX_FILT_MDA(intf, name)	(((intf)->index * \
+					  ASP_RX_FILTER_MDA_RES_MAX) \
+					 + ASP_RX_FILTER_MDA_##name)
+
+static int bcmasp_total_res_mda_cnt(struct bcmasp_priv *priv)
+{
+	return list_count_nodes(&priv->intfs) * ASP_RX_FILTER_MDA_RES_MAX;
+}
+
+void bcmasp_set_promisc(struct bcmasp_intf *intf, bool en)
+{
+	unsigned int i = ASP_RX_FILT_MDA(intf, PROMISC);
+	unsigned char promisc[ETH_ALEN];
+
+	eth_zero_addr(promisc);
+	/* Set mask to 00:00:00:00:00:00 to match all packets */
+	bcmasp_set_mda_filter(intf, promisc, promisc, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_allmulti(struct bcmasp_intf *intf, bool en)
+{
+	unsigned char allmulti[] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00};
+	unsigned int i = ASP_RX_FILT_MDA(intf, ALLMULTI);
+
+	/* Set mask to 01:00:00:00:00:00 to match all multicast */
+	bcmasp_set_mda_filter(intf, allmulti, allmulti, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_broad(struct bcmasp_intf *intf, bool en)
+{
+	unsigned int i = ASP_RX_FILT_MDA(intf, BROADCAST);
+	unsigned char addr[ETH_ALEN];
+
+	eth_broadcast_addr(addr);
+	bcmasp_set_mda_filter(intf, addr, addr, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_set_oaddr(struct bcmasp_intf *intf, const unsigned char *addr,
+		      bool en)
+{
+	unsigned char mask[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	unsigned int i = ASP_RX_FILT_MDA(intf, OWN_ADDR);
+
+	bcmasp_set_mda_filter(intf, addr, mask, i);
+	bcmasp_en_mda_filter(intf, en, i);
+}
+
+void bcmasp_disable_all_filters(struct bcmasp_intf *intf)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	unsigned int i;
+	int res_count;
+
+	res_count = bcmasp_total_res_mda_cnt(intf->parent);
+
+	/* Disable all filters held by this port */
+	for (i = res_count; i < NUM_MDA_FILTERS; i++) {
+		if (priv->mda_filters[i].en &&
+		    priv->mda_filters[i].port == intf->port)
+			bcmasp_en_mda_filter(intf, 0, i);
+	}
+}
+
+static int bcmasp_combine_set_filter(struct bcmasp_intf *intf,
+				     unsigned char *addr, unsigned char *mask,
+				     int i)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	u64 addr1, addr2, mask1, mask2, mask3;
+
+	/* Switch to u64 to help with the calculations */
+	addr1 = ether_addr_to_u64(priv->mda_filters[i].addr);
+	mask1 = ether_addr_to_u64(priv->mda_filters[i].mask);
+	addr2 = ether_addr_to_u64(addr);
+	mask2 = ether_addr_to_u64(mask);
+
+	/* Check if one filter resides within the other */
+	mask3 = mask1 & mask2;
+	if (mask3 == mask1 && ((addr1 & mask1) == (addr2 & mask1))) {
+		/* Filter 2 resides within filter 1, so everything is good */
+		return 0;
+	} else if (mask3 == mask2 && ((addr1 & mask2) == (addr2 & mask2))) {
+		/* Filter 1 resides within filter 2, so swap filters */
+		bcmasp_set_mda_filter(intf, addr, mask, i);
+		return 0;
+	}
+
+	/* Unable to combine */
+	return -EINVAL;
+}
+
+int bcmasp_set_en_mda_filter(struct bcmasp_intf *intf, unsigned char *addr,
+			     unsigned char *mask)
+{
+	struct bcmasp_priv *priv = intf->parent;
+	int ret, res_count;
+	unsigned int i;
+
+	res_count = bcmasp_total_res_mda_cnt(intf->parent);
+
+	for (i = res_count; i < NUM_MDA_FILTERS; i++) {
+		/* If filter not enabled or belongs to another port skip */
+		if (!priv->mda_filters[i].en ||
+		    priv->mda_filters[i].port != intf->port)
+			continue;
+
+		/* Attempt to combine filters */
+		ret = bcmasp_combine_set_filter(intf, addr, mask, i);
+		if (!ret)
+			return 0;
+	}
+
+	/* Create new filter if possible */
+	for (i = res_count; i < NUM_MDA_FILTERS; i++) {
+		if (priv->mda_filters[i].en)
+			continue;
+
+		bcmasp_set_mda_filter(intf, addr, mask, i);
+		bcmasp_en_mda_filter(intf, 1, i);
+		return 0;
+	}
+
+	/* No room for new filter */
+	return -EINVAL;
+}
+
+static void bcmasp_core_init_filters(struct bcmasp_priv *priv)
+{
+	unsigned int i;
+
+	/* Disable all filters and reset software view since the HW
+	 * can lose context while in deep sleep suspend states
+	 */
+	for (i = 0; i < NUM_MDA_FILTERS; i++) {
+		rx_filter_core_wl(priv, 0x0, ASP_RX_FILTER_MDA_CFG(i));
+		priv->mda_filters[i].en = 0;
+	}
+
+	/* Top level filter enable bit should be enabled at all times, set
+	 * GEN_WAKE_CLEAR to clear the network filter wake-up which would
+	 * otherwise be sticky
+	 */
+	rx_filter_core_wl(priv, (ASP_RX_FILTER_OPUT_EN |
+			  ASP_RX_FILTER_MDA_EN |
+			  ASP_RX_FILTER_GEN_WK_CLR |
+			  ASP_RX_FILTER_NT_FLT_EN),
+			  ASP_RX_FILTER_BLK_CTRL);
+}
+
+/* ASP core initialization */
+static void bcmasp_core_init(struct bcmasp_priv *priv)
+{
+	tx_analytics_core_wl(priv, 0x0, ASP_TX_ANALYTICS_CTRL);
+	rx_analytics_core_wl(priv, 0x4, ASP_RX_ANALYTICS_CTRL);
+
+	rx_edpkt_core_wl(priv, (ASP_EDPKT_HDR_SZ_128 << ASP_EDPKT_HDR_SZ_SHIFT),
+			 ASP_EDPKT_HDR_CFG);
+	rx_edpkt_core_wl(priv,
+			 (ASP_EDPKT_ENDI_BT_SWP_WD << ASP_EDPKT_ENDI_DESC_SHIFT),
+			 ASP_EDPKT_ENDI);
+
+	rx_edpkt_core_wl(priv, 0x1b, ASP_EDPKT_BURST_BUF_PSCAL_TOUT);
+	rx_edpkt_core_wl(priv, 0x3e8, ASP_EDPKT_BURST_BUF_WRITE_TOUT);
+	rx_edpkt_core_wl(priv, 0x3e8, ASP_EDPKT_BURST_BUF_READ_TOUT);
+
+	rx_edpkt_core_wl(priv, ASP_EDPKT_ENABLE_EN, ASP_EDPKT_ENABLE);
+
+	/* Disable and clear both UniMAC's wake-up interrupts to avoid
+	 * sticky interrupts.
+	 */
+	_intr2_mask_set(priv, ASP_INTR2_UMC0_WAKE | ASP_INTR2_UMC1_WAKE);
+	intr2_core_wl(priv, ASP_INTR2_UMC0_WAKE | ASP_INTR2_UMC1_WAKE,
+		      ASP_INTR2_CLEAR);
+}
+
+static void bcmasp_core_clock_select(struct bcmasp_priv *priv, bool slow)
+{
+	u32 reg;
+
+	reg = ctrl_core_rl(priv, ASP_CTRL_CORE_CLOCK_SELECT);
+	if (slow)
+		reg &= ~ASP_CTRL_CORE_CLOCK_SELECT_MAIN;
+	else
+		reg |= ASP_CTRL_CORE_CLOCK_SELECT_MAIN;
+	ctrl_core_wl(priv, reg, ASP_CTRL_CORE_CLOCK_SELECT);
+}
+
+static void bcmasp_core_clock_set_ll(struct bcmasp_priv *priv, u32 clr, u32 set)
+{
+	u32 reg;
+
+	reg = ctrl_core_rl(priv, ASP_CTRL_CLOCK_CTRL);
+	reg &= ~clr;
+	reg |= set;
+	ctrl_core_wl(priv, reg, ASP_CTRL_CLOCK_CTRL);
+
+	reg = ctrl_core_rl(priv, ASP_CTRL_SCRATCH_0);
+	reg &= ~clr;
+	reg |= set;
+	ctrl_core_wl(priv, reg, ASP_CTRL_SCRATCH_0);
+}
+
+static void bcmasp_core_clock_set(struct bcmasp_priv *priv, u32 clr, u32 set)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->clk_lock, flags);
+	bcmasp_core_clock_set_ll(priv, clr, set);
+	spin_unlock_irqrestore(&priv->clk_lock, flags);
+}
+
+void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en)
+{
+	u32 intf_mask = ASP_CTRL_CLOCK_CTRL_ASP_RGMII_DIS(intf->port);
+	struct bcmasp_priv *priv = intf->parent;
+	unsigned long flags;
+	u32 reg;
+
+	/* When enabling an interface, if the RX or TX clocks were not enabled,
+	 * enable them. Conversely, while disabling an interface, if this is
+	 * the last one enabled, we can turn off the shared RX and TX clocks as
+	 * well. We control enable bits which is why we test for equality on
+	 * the RGMII clock bit mask.
+	 */
+	spin_lock_irqsave(&priv->clk_lock, flags);
+	if (en) {
+		intf_mask |= ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE |
+			     ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE;
+		bcmasp_core_clock_set_ll(priv, intf_mask, 0);
+	} else {
+		reg = ctrl_core_rl(priv, ASP_CTRL_SCRATCH_0) | intf_mask;
+		if ((reg & ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK) ==
+		    ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK)
+			intf_mask |= ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE |
+				     ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE;
+		bcmasp_core_clock_set_ll(priv, 0, intf_mask);
+	}
+	spin_unlock_irqrestore(&priv->clk_lock, flags);
+}
+
+static struct bcmasp_hw_info v20_hw_info = {
+	.rx_ctrl_flush = ASP_RX_CTRL_FLUSH,
+	.umac2fb = UMAC2FB_OFFSET,
+	.rx_ctrl_fb_out_frame_count = ASP_RX_CTRL_FB_OUT_FRAME_COUNT,
+	.rx_ctrl_fb_filt_out_frame_count = ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT,
+	.rx_ctrl_fb_rx_fifo_depth = ASP_RX_CTRL_FB_RX_FIFO_DEPTH,
+};
+
+static const struct bcmasp_plat_data v20_plat_data = {
+	.hw_info = &v20_hw_info,
+};
+
+static struct bcmasp_hw_info v21_hw_info = {
+	.rx_ctrl_flush = ASP_RX_CTRL_FLUSH_2_1,
+	.umac2fb = UMAC2FB_OFFSET_2_1,
+	.rx_ctrl_fb_out_frame_count = ASP_RX_CTRL_FB_OUT_FRAME_COUNT_2_1,
+	.rx_ctrl_fb_filt_out_frame_count =
+		ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT_2_1,
+	.rx_ctrl_fb_rx_fifo_depth = ASP_RX_CTRL_FB_RX_FIFO_DEPTH_2_1,
+};
+
+static const struct bcmasp_plat_data v21_plat_data = {
+	.hw_info = &v21_hw_info,
+};
+
+static const struct of_device_id bcmasp_of_match[] = {
+	{ .compatible = "brcm,asp-v2.0", .data = &v20_plat_data },
+	{ .compatible = "brcm,asp-v2.1", .data = &v21_plat_data },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcmasp_of_match);
+
+static const struct of_device_id bcmasp_mdio_of_match[] = {
+	{ .compatible = "brcm,asp-v2.1-mdio", },
+	{ .compatible = "brcm,asp-v2.0-mdio", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcmasp_mdio_of_match);
+
+static void bcmasp_remove_intfs(struct bcmasp_priv *priv)
+{
+	struct bcmasp_intf *intf, *n;
+
+	list_for_each_entry_safe(intf, n, &priv->intfs, list) {
+		list_del(&intf->list);
+		bcmasp_interface_destroy(intf);
+	}
+}
+
+static int bcmasp_probe(struct platform_device *pdev)
+{
+	struct device_node *ports_node, *intf_node;
+	const struct bcmasp_plat_data *pdata;
+	struct device *dev = &pdev->dev;
+	struct bcmasp_priv *priv;
+	struct bcmasp_intf *intf;
+	int ret = 0, count = 0;
+	unsigned int i;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->irq = platform_get_irq(pdev, 0);
+	if (priv->irq <= 0)
+		return dev_err_probe(dev, -EINVAL, "invalid interrupt\n");
+
+	priv->clk = devm_clk_get_optional_enabled(dev, "sw_asp");
+	if (IS_ERR(priv->clk))
+		return dev_err_probe(dev, PTR_ERR(priv->clk),
+				     "failed to request clock\n");
+
+	/* Base from parent node */
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return dev_err_probe(dev, PTR_ERR(priv->base), "failed to iomap\n");
+
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
+	if (ret)
+		return dev_err_probe(dev, ret, "unable to set DMA mask: %d\n", ret);
+
+	dev_set_drvdata(&pdev->dev, priv);
+	priv->pdev = pdev;
+	spin_lock_init(&priv->mda_lock);
+	spin_lock_init(&priv->clk_lock);
+	INIT_LIST_HEAD(&priv->intfs);
+
+	pdata = device_get_match_data(&pdev->dev);
+	if (!pdata)
+		return dev_err_probe(dev, -EINVAL, "unable to find platform data\n");
+
+	priv->hw_info = pdata->hw_info;
+
+	/* Enable all clocks to ensure successful probing */
+	bcmasp_core_clock_set(priv, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE, 0);
+
+	/* Switch to the main clock */
+	bcmasp_core_clock_select(priv, false);
+
+	bcmasp_intr2_mask_set_all(priv);
+	bcmasp_intr2_clear_all(priv);
+
+	ret = devm_request_irq(&pdev->dev, priv->irq, bcmasp_isr, 0,
+			       pdev->name, priv);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to request ASP interrupt: %d", ret);
+
+	/* Register mdio child nodes */
+	of_platform_populate(dev->of_node, bcmasp_mdio_of_match, NULL, dev);
+
+	/* ASP specific initialization, Needs to be done regardless of
+	 * how many interfaces come up.
+	 */
+	bcmasp_core_init(priv);
+	bcmasp_core_init_filters(priv);
+
+	ports_node = of_find_node_by_name(dev->of_node, "ethernet-ports");
+	if (!ports_node) {
+		dev_warn(dev, "No ports found\n");
+		return -EINVAL;
+	}
+
+	i = 0;
+	for_each_available_child_of_node(ports_node, intf_node) {
+		intf = bcmasp_interface_create(priv, intf_node, i);
+		if (!intf) {
+			dev_err(dev, "Cannot create eth interface %d\n", i);
+			bcmasp_remove_intfs(priv);
+			goto of_put_exit;
+		}
+		list_add_tail(&intf->list, &priv->intfs);
+		i++;
+	}
+
+	/* Drop the clock reference count now and let ndo_open()/ndo_close()
+	 * manage it for us from now on.
+	 */
+	bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE);
+
+	clk_disable_unprepare(priv->clk);
+
+	/* Now do the registration of the network ports which will take care
+	 * of managing the clock properly.
+	 */
+	list_for_each_entry(intf, &priv->intfs, list) {
+		ret = register_netdev(intf->ndev);
+		if (ret) {
+			netdev_err(intf->ndev,
+				   "failed to register net_device: %d\n", ret);
+			bcmasp_remove_intfs(priv);
+			goto of_put_exit;
+		}
+		count++;
+	}
+
+	dev_info(dev, "Initialized %d port(s)\n", count);
+
+of_put_exit:
+	of_node_put(ports_node);
+	return ret;
+}
+
+static int bcmasp_remove(struct platform_device *pdev)
+{
+	struct bcmasp_priv *priv = dev_get_drvdata(&pdev->dev);
+
+	if (!priv)
+		return 0;
+
+	bcmasp_remove_intfs(priv);
+
+	return 0;
+}
+
+static void bcmasp_shutdown(struct platform_device *pdev)
+{
+	bcmasp_remove(pdev);
+}
+
+static int __maybe_unused bcmasp_suspend(struct device *d)
+{
+	struct bcmasp_priv *priv = dev_get_drvdata(d);
+	struct bcmasp_intf *intf;
+	int ret;
+
+	list_for_each_entry(intf, &priv->intfs, list) {
+		ret = bcmasp_interface_suspend(intf);
+		if (ret)
+			break;
+	}
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	/* Whether Wake-on-LAN is enabled or not, we can always disable
+	 * the shared TX clock
+	 */
+	bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE);
+
+	bcmasp_core_clock_select(priv, true);
+
+	clk_disable_unprepare(priv->clk);
+
+	return ret;
+}
+
+static int __maybe_unused bcmasp_resume(struct device *d)
+{
+	struct bcmasp_priv *priv = dev_get_drvdata(d);
+	struct bcmasp_intf *intf;
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	/* Switch to the main clock domain */
+	bcmasp_core_clock_select(priv, false);
+
+	/* Re-enable all clocks for re-initialization */
+	bcmasp_core_clock_set(priv, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE, 0);
+
+	bcmasp_core_init(priv);
+	bcmasp_core_init_filters(priv);
+
+	/* And disable them to let the network devices take care of them */
+	bcmasp_core_clock_set(priv, 0, ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE);
+
+	clk_disable_unprepare(priv->clk);
+
+	list_for_each_entry(intf, &priv->intfs, list) {
+		ret = bcmasp_interface_resume(intf);
+		if (ret)
+			break;
+	}
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(bcmasp_pm_ops,
+			 bcmasp_suspend, bcmasp_resume);
+
+static struct platform_driver bcmasp_driver = {
+	.probe = bcmasp_probe,
+	.remove = bcmasp_remove,
+	.shutdown = bcmasp_shutdown,
+	.driver = {
+		.name = "brcm,asp-v2",
+		.of_match_table = bcmasp_of_match,
+		.pm = &bcmasp_pm_ops,
+	},
+};
+module_platform_driver(bcmasp_driver);
+
+MODULE_DESCRIPTION("Broadcom ASP 2.0 Ethernet controller driver");
+MODULE_ALIAS("platform:brcm,asp-v2");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.h b/drivers/net/ethernet/broadcom/asp2/bcmasp.h
new file mode 100644
index 000000000000..4fe84d26251d
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.h
@@ -0,0 +1,503 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BCMASP_H
+#define __BCMASP_H
+
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/io-64-nonatomic-hi-lo.h>
+#include <uapi/linux/ethtool.h>
+
+#define ASP_INTR2_OFFSET			0x1000
+#define  ASP_INTR2_STATUS			0x0
+#define  ASP_INTR2_SET				0x4
+#define  ASP_INTR2_CLEAR			0x8
+#define  ASP_INTR2_MASK_STATUS			0xc
+#define  ASP_INTR2_MASK_SET			0x10
+#define  ASP_INTR2_MASK_CLEAR			0x14
+
+#define ASP_INTR2_RX_ECH(intr)			BIT(intr)
+#define ASP_INTR2_TX_DESC(intr)			BIT((intr) + 14)
+#define ASP_INTR2_UMC0_WAKE			BIT(22)
+#define ASP_INTR2_UMC1_WAKE			BIT(28)
+
+#define ASP_WAKEUP_INTR2_OFFSET			0x1200
+#define  ASP_WAKEUP_INTR2_STATUS		0x0
+#define  ASP_WAKEUP_INTR2_SET			0x4
+#define  ASP_WAKEUP_INTR2_CLEAR			0x8
+#define  ASP_WAKEUP_INTR2_MASK_STATUS		0xc
+#define  ASP_WAKEUP_INTR2_MASK_SET		0x10
+#define  ASP_WAKEUP_INTR2_MASK_CLEAR		0x14
+#define ASP_WAKEUP_INTR2_MPD_0			BIT(0)
+#define ASP_WAKEUP_INTR2_MPD_1			BIT(1)
+#define ASP_WAKEUP_INTR2_FILT_0			BIT(2)
+#define ASP_WAKEUP_INTR2_FILT_1			BIT(3)
+#define ASP_WAKEUP_INTR2_FW			BIT(4)
+
+#define ASP_TX_ANALYTICS_OFFSET			0x4c000
+#define  ASP_TX_ANALYTICS_CTRL			0x0
+
+#define ASP_RX_ANALYTICS_OFFSET			0x98000
+#define  ASP_RX_ANALYTICS_CTRL			0x0
+
+#define ASP_RX_CTRL_OFFSET			0x9f000
+#define ASP_RX_CTRL_UMAC_0_FRAME_COUNT		0x8
+#define ASP_RX_CTRL_UMAC_1_FRAME_COUNT		0xc
+#define ASP_RX_CTRL_FB_0_FRAME_COUNT		0x14
+#define ASP_RX_CTRL_FB_1_FRAME_COUNT		0x18
+#define ASP_RX_CTRL_FB_8_FRAME_COUNT		0x1c
+/* asp2.1 diverges offsets here */
+/* ASP2.0 */
+#define ASP_RX_CTRL_FB_OUT_FRAME_COUNT		0x20
+#define ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT	0x24
+#define ASP_RX_CTRL_FLUSH			0x28
+#define  ASP_CTRL_UMAC0_FLUSH_MASK		(BIT(0) | BIT(12))
+#define  ASP_CTRL_UMAC1_FLUSH_MASK		(BIT(1) | BIT(13))
+#define  ASP_CTRL_SPB_FLUSH_MASK		(BIT(8) | BIT(20))
+#define ASP_RX_CTRL_FB_RX_FIFO_DEPTH		0x30
+/* ASP2.1 */
+#define ASP_RX_CTRL_FB_9_FRAME_COUNT_2_1	0x20
+#define ASP_RX_CTRL_FB_10_FRAME_COUNT_2_1	0x24
+#define ASP_RX_CTRL_FB_OUT_FRAME_COUNT_2_1	0x28
+#define ASP_RX_CTRL_FB_FILT_OUT_FRAME_COUNT_2_1	0x2c
+#define ASP_RX_CTRL_FLUSH_2_1			0x30
+#define ASP_RX_CTRL_FB_RX_FIFO_DEPTH_2_1	0x38
+
+#define ASP_RX_FILTER_OFFSET			0x80000
+#define  ASP_RX_FILTER_BLK_CTRL			0x0
+#define   ASP_RX_FILTER_OPUT_EN			BIT(0)
+#define   ASP_RX_FILTER_MDA_EN			BIT(1)
+#define   ASP_RX_FILTER_LNR_MD			BIT(2)
+#define   ASP_RX_FILTER_GEN_WK_EN		BIT(3)
+#define   ASP_RX_FILTER_GEN_WK_CLR		BIT(4)
+#define   ASP_RX_FILTER_NT_FLT_EN		BIT(5)
+#define  ASP_RX_FILTER_MDA_CFG(sel)		(((sel) * 0x14) + 0x100)
+#define   ASP_RX_FILTER_MDA_CFG_EN_SHIFT	8
+#define   ASP_RX_FILTER_MDA_CFG_UMC_SEL(sel)	((sel) > 1 ? BIT(17) : \
+						 BIT((sel) + 9))
+#define  ASP_RX_FILTER_MDA_PAT_H(sel)		(((sel) * 0x14) + 0x104)
+#define  ASP_RX_FILTER_MDA_PAT_L(sel)		(((sel) * 0x14) + 0x108)
+#define  ASP_RX_FILTER_MDA_MSK_H(sel)		(((sel) * 0x14) + 0x10c)
+#define  ASP_RX_FILTER_MDA_MSK_L(sel)		(((sel) * 0x14) + 0x110)
+#define  ASP_RX_FILTER_MDA_CFG(sel)		(((sel) * 0x14) + 0x100)
+#define  ASP_RX_FILTER_MDA_PAT_H(sel)		(((sel) * 0x14) + 0x104)
+#define  ASP_RX_FILTER_MDA_PAT_L(sel)		(((sel) * 0x14) + 0x108)
+#define  ASP_RX_FILTER_MDA_MSK_H(sel)		(((sel) * 0x14) + 0x10c)
+#define  ASP_RX_FILTER_MDA_MSK_L(sel)		(((sel) * 0x14) + 0x110)
+#define  ASP_RX_FILTER_NET_CFG(sel)		(((sel) * 0xa04) + 0x400)
+#define   ASP_RX_FILTER_NET_CFG_CH(sel)		((sel) << 0)
+#define   ASP_RX_FILTER_NET_CFG_EN		BIT(9)
+#define   ASP_RX_FILTER_NET_CFG_L2_EN		BIT(10)
+#define   ASP_RX_FILTER_NET_CFG_L3_EN		BIT(11)
+#define   ASP_RX_FILTER_NET_CFG_L4_EN		BIT(12)
+#define   ASP_RX_FILTER_NET_CFG_L3_FRM(sel)	((sel) << 13)
+#define   ASP_RX_FILTER_NET_CFG_L4_FRM(sel)	((sel) << 15)
+#define   ASP_RX_FILTER_NET_CFG_UMC(sel)	BIT((sel) + 19)
+#define   ASP_RX_FILTER_NET_CFG_DMA_EN		BIT(27)
+
+#define  ASP_RX_FILTER_NET_OFFSET_MAX		32
+#define  ASP_RX_FILTER_NET_PAT(sel, block, off) \
+		(((sel) * 0xa04) + ((block) * 0x200) + (off) + 0x600)
+#define  ASP_RX_FILTER_NET_MASK(sel, block, off) \
+		(((sel) * 0xa04) + ((block) * 0x200) + (off) + 0x700)
+
+#define  ASP_RX_FILTER_NET_OFFSET(sel)		(((sel) * 0xa04) + 0xe00)
+#define   ASP_RX_FILTER_NET_OFFSET_L2(val)	((val) << 0)
+#define   ASP_RX_FILTER_NET_OFFSET_L3_0(val)	((val) << 8)
+#define   ASP_RX_FILTER_NET_OFFSET_L3_1(val)	((val) << 16)
+#define   ASP_RX_FILTER_NET_OFFSET_L4(val)	((val) << 24)
+
+#define ASP_EDPKT_OFFSET			0x9c000
+#define  ASP_EDPKT_ENABLE			0x4
+#define   ASP_EDPKT_ENABLE_EN			BIT(0)
+#define  ASP_EDPKT_HDR_CFG			0xc
+#define   ASP_EDPKT_HDR_SZ_SHIFT		2
+#define   ASP_EDPKT_HDR_SZ_32			0
+#define   ASP_EDPKT_HDR_SZ_64			1
+#define   ASP_EDPKT_HDR_SZ_96			2
+#define   ASP_EDPKT_HDR_SZ_128			3
+#define ASP_EDPKT_BURST_BUF_PSCAL_TOUT		0x10
+#define ASP_EDPKT_BURST_BUF_WRITE_TOUT		0x14
+#define ASP_EDPKT_BURST_BUF_READ_TOUT		0x18
+#define ASP_EDPKT_RX_TS_COUNTER			0x38
+#define  ASP_EDPKT_ENDI				0x48
+#define   ASP_EDPKT_ENDI_DESC_SHIFT		8
+#define   ASP_EDPKT_ENDI_NO_BT_SWP		0
+#define   ASP_EDPKT_ENDI_BT_SWP_WD		1
+#define ASP_EDPKT_RX_PKT_CNT			0x138
+#define ASP_EDPKT_HDR_EXTR_CNT			0x13c
+#define ASP_EDPKT_HDR_OUT_CNT			0x140
+
+#define ASP_CTRL				0x101000
+#define  ASP_CTRL_ASP_SW_INIT			0x04
+#define   ASP_CTRL_ASP_SW_INIT_ACPUSS_CORE	BIT(0)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_TX		BIT(1)
+#define   ASP_CTRL_ASP_SW_INIT_AS_RX		BIT(2)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_RGMII_UMAC0	BIT(3)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_RGMII_UMAC1	BIT(4)
+#define   ASP_CTRL_ASP_SW_INIT_ASP_XMEMIF	BIT(5)
+#define  ASP_CTRL_CLOCK_CTRL			0x04
+#define   ASP_CTRL_CLOCK_CTRL_ASP_TX_DISABLE	BIT(0)
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RX_DISABLE	BIT(1)
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT	2
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RGMII_MASK	(0x7 << ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT)
+#define   ASP_CTRL_CLOCK_CTRL_ASP_RGMII_DIS(x)	BIT(ASP_CTRL_CLOCK_CTRL_ASP_RGMII_SHIFT + (x))
+#define   ASP_CTRL_CLOCK_CTRL_ASP_ALL_DISABLE	GENMASK(4, 0)
+#define  ASP_CTRL_CORE_CLOCK_SELECT		0x08
+#define   ASP_CTRL_CORE_CLOCK_SELECT_MAIN	BIT(0)
+#define  ASP_CTRL_SCRATCH_0			0x0c
+
+struct bcmasp_tx_cb {
+	struct sk_buff		*skb;
+	unsigned int		bytes_sent;
+	bool			last;
+
+	DEFINE_DMA_UNMAP_ADDR(dma_addr);
+	DEFINE_DMA_UNMAP_LEN(dma_len);
+};
+
+struct bcmasp_res {
+	/* Per interface resources */
+	/* Port */
+	void __iomem		*umac;
+	void __iomem		*umac2fb;
+	void __iomem		*rgmii;
+
+	/* TX slowpath/configuration */
+	void __iomem		*tx_spb_ctrl;
+	void __iomem		*tx_spb_top;
+	void __iomem		*tx_epkt_core;
+	void __iomem		*tx_pause_ctrl;
+};
+
+#define DESC_ADDR(x)		((x) & GENMASK_ULL(39, 0))
+#define DESC_FLAGS(x)		((x) & GENMASK_ULL(63, 40))
+
+struct bcmasp_desc {
+	u64		buf;
+	#define DESC_CHKSUM	BIT_ULL(40)
+	#define DESC_CRC_ERR	BIT_ULL(41)
+	#define DESC_RX_SYM_ERR	BIT_ULL(42)
+	#define DESC_NO_OCT_ALN BIT_ULL(43)
+	#define DESC_PKT_TRUC	BIT_ULL(44)
+	/*  39:0 (TX/RX) bits 0-39 of buf addr
+	 *    40 (RX) checksum
+	 *    41 (RX) crc_error
+	 *    42 (RX) rx_symbol_error
+	 *    43 (RX) non_octet_aligned
+	 *    44 (RX) pkt_truncated
+	 *    45 Reserved
+	 * 56:46 (RX) mac_filter_id
+	 * 60:57 (RX) rx_port_num (0-unicmac0, 1-unimac1)
+	 *    61 Reserved
+	 * 63:62 (TX) forward CRC, overwrite CRC
+	 */
+	u32		size;
+	u32		flags;
+	#define DESC_INT_EN     BIT(0)
+	#define DESC_SOF	BIT(1)
+	#define DESC_EOF	BIT(2)
+	#define DESC_EPKT_CMD   BIT(3)
+	#define DESC_SCRAM_ST   BIT(8)
+	#define DESC_SCRAM_END  BIT(9)
+	#define DESC_PCPP       BIT(10)
+	#define DESC_PPPP       BIT(11)
+	/*     0 (TX) tx_int_en
+	 *     1 (TX/RX) SOF
+	 *     2 (TX/RX) EOF
+	 *     3 (TX) epkt_command
+	 *   6:4 (TX) PA
+	 *     7 (TX) pause at desc end
+	 *     8 (TX) scram_start
+	 *     9 (TX) scram_end
+	 *    10 (TX) PCPP
+	 *    11 (TX) PPPP
+	 * 14:12 Reserved
+	 *    15 (TX) pid ch Valid
+	 * 19:16 (TX) data_pkt_type
+	 * 32:20 (TX) pid_channel (RX) nw_filter_id
+	 */
+};
+
+struct bcmasp_intf;
+
+struct bcmasp_intf_stats64 {
+	/* Rx Stats */
+	u64_stats_t	rx_packets;
+	u64_stats_t	rx_bytes;
+	u64_stats_t	rx_errors;
+	u64_stats_t	rx_dropped;
+	u64_stats_t	rx_crc_errs;
+	u64_stats_t	rx_sym_errs;
+
+	/* Tx Stats*/
+	u64_stats_t	tx_packets;
+	u64_stats_t	tx_bytes;
+
+	struct u64_stats_sync		syncp;
+};
+
+struct bcmasp_intf_ops {
+	unsigned long (*rx_desc_read)(struct bcmasp_intf *intf);
+	void (*rx_buffer_write)(struct bcmasp_intf *intf, dma_addr_t addr);
+	void (*rx_desc_write)(struct bcmasp_intf *intf, dma_addr_t addr);
+	unsigned long (*tx_read)(struct bcmasp_intf *intf);
+	void (*tx_write)(struct bcmasp_intf *intf, dma_addr_t addr);
+};
+
+struct bcmasp_priv;
+
+struct bcmasp_intf {
+	struct list_head		list;
+	struct net_device		*ndev;
+	struct bcmasp_priv		*parent;
+
+	/* ASP Ch */
+	int				channel;
+	int				port;
+	const struct bcmasp_intf_ops	*ops;
+
+	/* Used for splitting shared resources */
+	int				index;
+
+	struct napi_struct		tx_napi;
+	/* TX ring, starts on a new cacheline boundary */
+	void __iomem			*tx_spb_dma;
+	int				tx_spb_index;
+	int				tx_spb_clean_index;
+	struct bcmasp_desc		*tx_spb_cpu;
+	dma_addr_t			tx_spb_dma_addr;
+	dma_addr_t			tx_spb_dma_valid;
+	dma_addr_t			tx_spb_dma_read;
+	struct bcmasp_tx_cb		*tx_cbs;
+
+	/* RX ring, starts on a new cacheline boundary */
+	void __iomem			*rx_edpkt_cfg;
+	void __iomem			*rx_edpkt_dma;
+	int				rx_edpkt_index;
+	int				rx_buf_order;
+	struct bcmasp_desc		*rx_edpkt_cpu;
+	dma_addr_t			rx_edpkt_dma_addr;
+	dma_addr_t			rx_edpkt_dma_read;
+
+	/* RX buffer prefetcher ring*/
+	void				*rx_ring_cpu;
+	dma_addr_t			rx_ring_dma;
+	dma_addr_t			rx_ring_dma_valid;
+	struct napi_struct		rx_napi;
+
+	struct bcmasp_res		res;
+	unsigned int			crc_fwd;
+
+	/* PHY device */
+	struct device_node		*phy_dn;
+	struct device_node		*ndev_dn;
+	phy_interface_t			phy_interface;
+	bool				internal_phy;
+	int				old_pause;
+	int				old_link;
+	int				old_duplex;
+
+	u32				msg_enable;
+
+	/* Statistics */
+	struct bcmasp_intf_stats64	stats64;
+};
+
+#define NUM_MDA_FILTERS				32
+struct bcmasp_mda_filter {
+	/* Current owner of this filter */
+	int		port;
+	bool		en;
+	u8		addr[ETH_ALEN];
+	u8		mask[ETH_ALEN];
+};
+
+struct bcmasp_hw_info {
+	u32		rx_ctrl_flush;
+	u32		umac2fb;
+	u32		rx_ctrl_fb_out_frame_count;
+	u32		rx_ctrl_fb_filt_out_frame_count;
+	u32		rx_ctrl_fb_rx_fifo_depth;
+};
+
+struct bcmasp_plat_data {
+	struct bcmasp_hw_info		*hw_info;
+};
+
+struct bcmasp_priv {
+	struct platform_device		*pdev;
+	struct clk			*clk;
+
+	int				irq;
+	u32				irq_mask;
+
+	void __iomem			*base;
+	struct	bcmasp_hw_info		*hw_info;
+
+	struct list_head		intfs;
+
+	struct bcmasp_mda_filter	mda_filters[NUM_MDA_FILTERS];
+
+	/* MAC destination address filters lock */
+	spinlock_t			mda_lock;
+
+	/* Protects accesses to ASP_CTRL_CLOCK_CTRL */
+	spinlock_t			clk_lock;
+};
+
+static inline unsigned long bcmasp_intf_rx_desc_read(struct bcmasp_intf *intf)
+{
+	return intf->ops->rx_desc_read(intf);
+}
+
+static inline void bcmasp_intf_rx_buffer_write(struct bcmasp_intf *intf,
+					       dma_addr_t addr)
+{
+	intf->ops->rx_buffer_write(intf, addr);
+}
+
+static inline void bcmasp_intf_rx_desc_write(struct bcmasp_intf *intf,
+					     dma_addr_t addr)
+{
+	intf->ops->rx_desc_write(intf, addr);
+}
+
+static inline unsigned long bcmasp_intf_tx_read(struct bcmasp_intf *intf)
+{
+	return intf->ops->tx_read(intf);
+}
+
+static inline void bcmasp_intf_tx_write(struct bcmasp_intf *intf,
+					dma_addr_t addr)
+{
+	intf->ops->tx_write(intf, addr);
+}
+
+#define __BCMASP_IO_MACRO(name, m)					\
+static inline u32 name##_rl(struct bcmasp_intf *intf, u32 off)		\
+{									\
+	u32 reg = readl_relaxed(intf->m + off);				\
+	return reg;							\
+}									\
+static inline void name##_wl(struct bcmasp_intf *intf, u32 val, u32 off)\
+{									\
+	writel_relaxed(val, intf->m + off);				\
+}
+
+#define BCMASP_IO_MACRO(name)		__BCMASP_IO_MACRO(name, res.name)
+#define BCMASP_FP_IO_MACRO(name)	__BCMASP_IO_MACRO(name, name)
+
+BCMASP_IO_MACRO(umac);
+BCMASP_IO_MACRO(umac2fb);
+BCMASP_IO_MACRO(rgmii);
+BCMASP_FP_IO_MACRO(tx_spb_dma);
+BCMASP_IO_MACRO(tx_spb_ctrl);
+BCMASP_IO_MACRO(tx_spb_top);
+BCMASP_IO_MACRO(tx_epkt_core);
+BCMASP_IO_MACRO(tx_pause_ctrl);
+BCMASP_FP_IO_MACRO(rx_edpkt_dma);
+BCMASP_FP_IO_MACRO(rx_edpkt_cfg);
+
+#define __BCMASP_FP_IO_MACRO_Q(name, m)					\
+static inline u64 name##_rq(struct bcmasp_intf *intf, u32 off)		\
+{									\
+	u64 reg = readq_relaxed(intf->m + off);				\
+	return reg;							\
+}									\
+static inline void name##_wq(struct bcmasp_intf *intf, u64 val, u32 off)\
+{									\
+	writeq_relaxed(val, intf->m + off);				\
+}
+
+#define BCMASP_FP_IO_MACRO_Q(name)	__BCMASP_FP_IO_MACRO_Q(name, name)
+
+BCMASP_FP_IO_MACRO_Q(tx_spb_dma);
+BCMASP_FP_IO_MACRO_Q(rx_edpkt_dma);
+BCMASP_FP_IO_MACRO_Q(rx_edpkt_cfg);
+
+#define PKT_OFFLOAD_NOP			(0 << 28)
+#define PKT_OFFLOAD_HDR_OP		(1 << 28)
+#define  PKT_OFFLOAD_HDR_WRBACK		BIT(19)
+#define  PKT_OFFLOAD_HDR_COUNT(x)	((x) << 16)
+#define  PKT_OFFLOAD_HDR_SIZE_1(x)	((x) << 4)
+#define  PKT_OFFLOAD_HDR_SIZE_2(x)	(x)
+#define  PKT_OFFLOAD_HDR2_SIZE_2(x)	((x) << 24)
+#define  PKT_OFFLOAD_HDR2_SIZE_3(x)	((x) << 12)
+#define  PKT_OFFLOAD_HDR2_SIZE_4(x)	(x)
+#define PKT_OFFLOAD_EPKT_OP		(2 << 28)
+#define  PKT_OFFLOAD_EPKT_WRBACK	BIT(23)
+#define  PKT_OFFLOAD_EPKT_IP(x)		((x) << 21)
+#define  PKT_OFFLOAD_EPKT_TP(x)		((x) << 19)
+#define  PKT_OFFLOAD_EPKT_LEN(x)	((x) << 16)
+#define  PKT_OFFLOAD_EPKT_CSUM_L3	BIT(15)
+#define  PKT_OFFLOAD_EPKT_CSUM_L2	BIT(14)
+#define  PKT_OFFLOAD_EPKT_ID(x)		((x) << 12)
+#define  PKT_OFFLOAD_EPKT_SEQ(x)	((x) << 10)
+#define  PKT_OFFLOAD_EPKT_TS(x)		((x) << 8)
+#define  PKT_OFFLOAD_EPKT_BLOC(x)	(x)
+#define PKT_OFFLOAD_END_OP		(7 << 28)
+
+struct bcmasp_pkt_offload {
+	__be32		nop;
+	__be32		header;
+	__be32		header2;
+	__be32		epkt;
+	__be32		end;
+};
+
+#define BCMASP_CORE_IO_MACRO(name, offset)				\
+static inline u32 name##_core_rl(struct bcmasp_priv *priv,		\
+				 u32 off)				\
+{									\
+	u32 reg = readl_relaxed(priv->base + (offset) + off);		\
+	return reg;							\
+}									\
+static inline void name##_core_wl(struct bcmasp_priv *priv,		\
+				  u32 val, u32 off)			\
+{									\
+	writel_relaxed(val, priv->base + (offset) + off);		\
+}
+
+BCMASP_CORE_IO_MACRO(intr2, ASP_INTR2_OFFSET);
+BCMASP_CORE_IO_MACRO(wakeup_intr2, ASP_WAKEUP_INTR2_OFFSET);
+BCMASP_CORE_IO_MACRO(tx_analytics, ASP_TX_ANALYTICS_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_analytics, ASP_RX_ANALYTICS_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_ctrl, ASP_RX_CTRL_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_filter, ASP_RX_FILTER_OFFSET);
+BCMASP_CORE_IO_MACRO(rx_edpkt, ASP_EDPKT_OFFSET);
+BCMASP_CORE_IO_MACRO(ctrl, ASP_CTRL);
+
+struct bcmasp_intf *bcmasp_interface_create(struct bcmasp_priv *priv,
+					    struct device_node *ndev_dn, int i);
+
+void bcmasp_interface_destroy(struct bcmasp_intf *intf);
+
+void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en);
+
+void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en);
+
+void bcmasp_flush_rx_port(struct bcmasp_intf *intf);
+
+extern const struct ethtool_ops bcmasp_ethtool_ops;
+
+int bcmasp_interface_suspend(struct bcmasp_intf *intf);
+
+int bcmasp_interface_resume(struct bcmasp_intf *intf);
+
+void bcmasp_set_promisc(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_allmulti(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_broad(struct bcmasp_intf *intf, bool en);
+
+void bcmasp_set_oaddr(struct bcmasp_intf *intf, const unsigned char *addr,
+		      bool en);
+
+int bcmasp_set_en_mda_filter(struct bcmasp_intf *intf, unsigned char *addr,
+			     unsigned char *mask);
+
+void bcmasp_disable_all_filters(struct bcmasp_intf *intf);
+
+void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en);
+
+#endif
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
new file mode 100644
index 000000000000..394c0e1cb026
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_ethtool.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt)				"bcmasp_ethtool: " fmt
+
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static void bcmasp_get_drvinfo(struct net_device *dev,
+			       struct ethtool_drvinfo *info)
+{
+	strscpy(info->driver, "bcmasp", sizeof(info->driver));
+	strscpy(info->bus_info, dev_name(dev->dev.parent),
+		sizeof(info->bus_info));
+}
+
+static u32 bcmasp_get_msglevel(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	return intf->msg_enable;
+}
+
+static void bcmasp_set_msglevel(struct net_device *dev, u32 level)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	intf->msg_enable = level;
+}
+
+const struct ethtool_ops bcmasp_ethtool_ops = {
+	.get_drvinfo		= bcmasp_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.get_msglevel		= bcmasp_get_msglevel,
+	.set_msglevel		= bcmasp_set_msglevel,
+};
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
new file mode 100644
index 000000000000..0232f5cf8909
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
@@ -0,0 +1,1342 @@
+// SPDX-License-Identifier: GPL-2.0
+#define pr_fmt(fmt)			"bcmasp_intf: " fmt
+
+#include <asm/byteorder.h>
+#include <linux/brcmphy.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <linux/ptp_classify.h>
+#include <linux/platform_device.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+
+#include "bcmasp.h"
+#include "bcmasp_intf_defs.h"
+
+static int incr_ring(int index, int ring_count)
+{
+	index++;
+	if (index == ring_count)
+		return 0;
+
+	return index;
+}
+
+/* Points to last byte of descriptor */
+static dma_addr_t incr_last_byte(dma_addr_t addr, dma_addr_t beg,
+				 int ring_count)
+{
+	dma_addr_t end = beg + (ring_count * DESC_SIZE);
+
+	addr += DESC_SIZE;
+	if (addr > end)
+		return beg + DESC_SIZE - 1;
+
+	return addr;
+}
+
+/* Points to first byte of descriptor */
+static dma_addr_t incr_first_byte(dma_addr_t addr, dma_addr_t beg,
+				  int ring_count)
+{
+	dma_addr_t end = beg + (ring_count * DESC_SIZE);
+
+	addr += DESC_SIZE;
+	if (addr >= end)
+		return beg;
+
+	return addr;
+}
+
+static void bcmasp_enable_tx(struct bcmasp_intf *intf, int en)
+{
+	if (en) {
+		tx_spb_ctrl_wl(intf, TX_SPB_CTRL_ENABLE_EN, TX_SPB_CTRL_ENABLE);
+		tx_epkt_core_wl(intf, (TX_EPKT_C_CFG_MISC_EN |
+				TX_EPKT_C_CFG_MISC_PT |
+				(intf->port << TX_EPKT_C_CFG_MISC_PS_SHIFT)),
+				TX_EPKT_C_CFG_MISC);
+	} else {
+		tx_spb_ctrl_wl(intf, 0x0, TX_SPB_CTRL_ENABLE);
+		tx_epkt_core_wl(intf, 0x0, TX_EPKT_C_CFG_MISC);
+	}
+}
+
+static void bcmasp_enable_rx(struct bcmasp_intf *intf, int en)
+{
+	if (en)
+		rx_edpkt_cfg_wl(intf, RX_EDPKT_CFG_ENABLE_EN,
+				RX_EDPKT_CFG_ENABLE);
+	else
+		rx_edpkt_cfg_wl(intf, 0x0, RX_EDPKT_CFG_ENABLE);
+}
+
+static void bcmasp_set_rx_mode(struct net_device *dev)
+{
+	unsigned char mask[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct netdev_hw_addr *ha;
+	int ret;
+
+	spin_lock_bh(&intf->parent->mda_lock);
+
+	bcmasp_disable_all_filters(intf);
+
+	if (dev->flags & IFF_PROMISC)
+		goto set_promisc;
+
+	bcmasp_set_promisc(intf, 0);
+
+	bcmasp_set_broad(intf, 1);
+
+	bcmasp_set_oaddr(intf, dev->dev_addr, 1);
+
+	if (dev->flags & IFF_ALLMULTI) {
+		bcmasp_set_allmulti(intf, 1);
+	} else {
+		bcmasp_set_allmulti(intf, 0);
+
+		netdev_for_each_mc_addr(ha, dev) {
+			ret = bcmasp_set_en_mda_filter(intf, ha->addr, mask);
+			if (ret)
+				goto set_promisc;
+		}
+	}
+
+	netdev_for_each_uc_addr(ha, dev) {
+		ret = bcmasp_set_en_mda_filter(intf, ha->addr, mask);
+		if (ret)
+			goto set_promisc;
+	}
+
+	spin_unlock_bh(&intf->parent->mda_lock);
+	return;
+
+set_promisc:
+	bcmasp_set_promisc(intf, 1);
+
+	/* disable all filters used by this port */
+	bcmasp_disable_all_filters(intf);
+
+	spin_unlock_bh(&intf->parent->mda_lock);
+}
+
+static void bcmasp_clean_txcb(struct bcmasp_intf *intf, int index)
+{
+	struct bcmasp_tx_cb *txcb = &intf->tx_cbs[index];
+
+	txcb->skb = NULL;
+	dma_unmap_addr_set(txcb, dma_addr, 0);
+	dma_unmap_len_set(txcb, dma_len, 0);
+	txcb->last = false;
+}
+
+static int tx_spb_ring_full(struct bcmasp_intf *intf, int cnt)
+{
+	int next_index, i;
+
+	/* Check if we have enough room for cnt descriptors */
+	for (i = 0; i < cnt; i++) {
+		next_index = incr_ring(intf->tx_spb_index, DESC_RING_COUNT);
+		if (next_index == intf->tx_spb_clean_index)
+			return 1;
+	}
+
+	return 0;
+}
+
+static struct sk_buff *bcmasp_csum_offload(struct net_device *dev,
+					   struct sk_buff *skb,
+					   bool *csum_hw)
+{
+	u32 header = 0, header2 = 0, epkt = 0;
+	struct bcmasp_pkt_offload *offload;
+	unsigned int header_cnt = 0;
+	u8 ip_proto;
+	int ret;
+
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		return skb;
+
+	ret = skb_cow_head(skb, sizeof(*offload));
+	if (ret < 0)
+		goto help;
+
+	switch (skb->protocol) {
+	case htons(ETH_P_IP):
+		header |= PKT_OFFLOAD_HDR_SIZE_2((ip_hdrlen(skb) >> 8) & 0xf);
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_2(ip_hdrlen(skb) & 0xff);
+		epkt |= PKT_OFFLOAD_EPKT_IP(0) | PKT_OFFLOAD_EPKT_CSUM_L2;
+		ip_proto = ip_hdr(skb)->protocol;
+		header_cnt += 2;
+		break;
+	case htons(ETH_P_IPV6):
+		header |= PKT_OFFLOAD_HDR_SIZE_2((IP6_HLEN >> 8) & 0xf);
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_2(IP6_HLEN & 0xff);
+		epkt |= PKT_OFFLOAD_EPKT_IP(1) | PKT_OFFLOAD_EPKT_CSUM_L2;
+		ip_proto = ipv6_hdr(skb)->nexthdr;
+		header_cnt += 2;
+		break;
+	default:
+		goto help;
+	}
+
+	switch (ip_proto) {
+	case IPPROTO_TCP:
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_3(tcp_hdrlen(skb));
+		epkt |= PKT_OFFLOAD_EPKT_TP(0) | PKT_OFFLOAD_EPKT_CSUM_L3;
+		header_cnt++;
+		break;
+	case IPPROTO_UDP:
+		header2 |= PKT_OFFLOAD_HDR2_SIZE_3(UDP_HLEN);
+		epkt |= PKT_OFFLOAD_EPKT_TP(1) | PKT_OFFLOAD_EPKT_CSUM_L3;
+		header_cnt++;
+		break;
+	default:
+		goto help;
+	}
+
+	offload = (struct bcmasp_pkt_offload *)skb_push(skb, sizeof(*offload));
+
+	header |= PKT_OFFLOAD_HDR_OP | PKT_OFFLOAD_HDR_COUNT(header_cnt) |
+		  PKT_OFFLOAD_HDR_SIZE_1(ETH_HLEN);
+	epkt |= PKT_OFFLOAD_EPKT_OP;
+
+	offload->nop = htonl(PKT_OFFLOAD_NOP);
+	offload->header = htonl(header);
+	offload->header2 = htonl(header2);
+	offload->epkt = htonl(epkt);
+	offload->end = htonl(PKT_OFFLOAD_END_OP);
+	*csum_hw = true;
+
+	return skb;
+
+help:
+	skb_checksum_help(skb);
+
+	return skb;
+}
+
+static unsigned long bcmasp_rx_edpkt_dma_rq(struct bcmasp_intf *intf)
+{
+	return rx_edpkt_dma_rq(intf, RX_EDPKT_DMA_VALID);
+}
+
+static void bcmasp_rx_edpkt_cfg_wq(struct bcmasp_intf *intf, dma_addr_t addr)
+{
+	rx_edpkt_cfg_wq(intf, addr, RX_EDPKT_RING_BUFFER_READ);
+}
+
+static void bcmasp_rx_edpkt_dma_wq(struct bcmasp_intf *intf, dma_addr_t addr)
+{
+	rx_edpkt_dma_wq(intf, addr, RX_EDPKT_DMA_READ);
+}
+
+static unsigned long bcmasp_tx_spb_dma_rq(struct bcmasp_intf *intf)
+{
+	return tx_spb_dma_rq(intf, TX_SPB_DMA_READ);
+}
+
+static void bcmasp_tx_spb_dma_wq(struct bcmasp_intf *intf, dma_addr_t addr)
+{
+	tx_spb_dma_wq(intf, addr, TX_SPB_DMA_VALID);
+}
+
+static const struct bcmasp_intf_ops bcmasp_intf_ops = {
+	.rx_desc_read = bcmasp_rx_edpkt_dma_rq,
+	.rx_buffer_write = bcmasp_rx_edpkt_cfg_wq,
+	.rx_desc_write = bcmasp_rx_edpkt_dma_wq,
+	.tx_read = bcmasp_tx_spb_dma_rq,
+	.tx_write = bcmasp_tx_spb_dma_wq,
+};
+
+static netdev_tx_t bcmasp_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	unsigned int total_bytes, size;
+	int spb_index, nr_frags, i, j;
+	struct bcmasp_tx_cb *txcb;
+	dma_addr_t mapping, valid;
+	struct bcmasp_desc *desc;
+	bool csum_hw = false;
+	struct device *kdev;
+	skb_frag_t *frag;
+
+	kdev = &intf->parent->pdev->dev;
+
+	nr_frags = skb_shinfo(skb)->nr_frags;
+
+	if (tx_spb_ring_full(intf, nr_frags + 1)) {
+		netif_stop_queue(dev);
+		if (net_ratelimit())
+			netdev_err(dev, "Tx Ring Full!\n");
+		return NETDEV_TX_BUSY;
+	}
+
+	/* Save skb len before adding csum offload header */
+	total_bytes = skb->len;
+	skb = bcmasp_csum_offload(dev, skb, &csum_hw);
+	if (!skb)
+		return NETDEV_TX_OK;
+
+	spb_index = intf->tx_spb_index;
+	valid = intf->tx_spb_dma_valid;
+	for (i = 0; i <= nr_frags; i++) {
+		if (!i) {
+			size = skb_headlen(skb);
+			if (!nr_frags && size < (ETH_ZLEN + ETH_FCS_LEN)) {
+				if (skb_put_padto(skb, ETH_ZLEN + ETH_FCS_LEN))
+					return NETDEV_TX_OK;
+				size = skb->len;
+			}
+			mapping = dma_map_single(kdev, skb->data, size,
+						 DMA_TO_DEVICE);
+		} else {
+			frag = &skb_shinfo(skb)->frags[i - 1];
+			size = skb_frag_size(frag);
+			mapping = skb_frag_dma_map(kdev, frag, 0, size,
+						   DMA_TO_DEVICE);
+		}
+
+		if (dma_mapping_error(kdev, mapping)) {
+			spb_index = intf->tx_spb_index;
+			for (j = 0; j < i; j++) {
+				bcmasp_clean_txcb(intf, spb_index);
+				spb_index = incr_ring(spb_index,
+						      DESC_RING_COUNT);
+			}
+			/* Rewind so we do not have a hole */
+			spb_index = intf->tx_spb_index;
+			return NETDEV_TX_OK;
+		}
+
+		txcb = &intf->tx_cbs[spb_index];
+		desc = &intf->tx_spb_cpu[spb_index];
+		memset(desc, 0, sizeof(*desc));
+		txcb->skb = skb;
+		txcb->bytes_sent = total_bytes;
+		dma_unmap_addr_set(txcb, dma_addr, mapping);
+		dma_unmap_len_set(txcb, dma_len, size);
+		if (!i) {
+			desc->flags |= DESC_SOF;
+			if (csum_hw)
+				desc->flags |= DESC_EPKT_CMD;
+		}
+
+		if (i == nr_frags) {
+			desc->flags |= DESC_EOF;
+			txcb->last = true;
+		}
+
+		desc->buf = mapping;
+		desc->size = size;
+		desc->flags |= DESC_INT_EN;
+
+		netif_dbg(intf, tx_queued, dev,
+			  "%s dma_buf=%pad dma_len=0x%x flags=0x%x index=0x%x\n",
+			  __func__, &mapping, desc->size, desc->flags,
+			  spb_index);
+
+		spb_index = incr_ring(spb_index, DESC_RING_COUNT);
+		valid = incr_last_byte(valid, intf->tx_spb_dma_addr,
+				       DESC_RING_COUNT);
+	}
+
+	/* Ensure all descriptors have been written to DRAM for the
+	 * hardware to see up-to-date contents.
+	 */
+	wmb();
+
+	intf->tx_spb_index = spb_index;
+	intf->tx_spb_dma_valid = valid;
+	bcmasp_intf_tx_write(intf, intf->tx_spb_dma_valid);
+
+	if (tx_spb_ring_full(intf, MAX_SKB_FRAGS + 1))
+		netif_stop_queue(dev);
+
+	return NETDEV_TX_OK;
+}
+
+static void bcmasp_netif_start(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	bcmasp_set_rx_mode(dev);
+	napi_enable(&intf->tx_napi);
+	napi_enable(&intf->rx_napi);
+
+	bcmasp_enable_rx_irq(intf, 1);
+	bcmasp_enable_tx_irq(intf, 1);
+
+	phy_start(dev->phydev);
+}
+
+static void umac_reset(struct bcmasp_intf *intf)
+{
+	umac_wl(intf, 0x0, UMC_CMD);
+	umac_wl(intf, UMC_CMD_SW_RESET, UMC_CMD);
+	usleep_range(10, 100);
+	umac_wl(intf, 0x0, UMC_CMD);
+}
+
+static void umac_set_hw_addr(struct bcmasp_intf *intf,
+			     const unsigned char *addr)
+{
+	u32 mac0 = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) |
+		    addr[3];
+	u32 mac1 = (addr[4] << 8) | addr[5];
+
+	umac_wl(intf, mac0, UMC_MAC0);
+	umac_wl(intf, mac1, UMC_MAC1);
+}
+
+static void umac_enable_set(struct bcmasp_intf *intf, u32 mask,
+			    unsigned int enable)
+{
+	u32 reg;
+
+	reg = umac_rl(intf, UMC_CMD);
+	if (enable)
+		reg |= mask;
+	else
+		reg &= ~mask;
+	umac_wl(intf, reg, UMC_CMD);
+
+	/* UniMAC stops on a packet boundary, wait for a full-sized packet
+	 * to be processed (1 msec).
+	 */
+	if (enable == 0)
+		usleep_range(1000, 2000);
+}
+
+static void umac_init(struct bcmasp_intf *intf)
+{
+	umac_wl(intf, 0x800, UMC_FRM_LEN);
+	umac_wl(intf, 0xffff, UMC_PAUSE_CNTRL);
+	umac_wl(intf, 0x800, UMC_RX_MAX_PKT_SZ);
+	umac_enable_set(intf, UMC_CMD_PROMISC, 1);
+}
+
+static int bcmasp_tx_poll(struct napi_struct *napi, int budget)
+{
+	struct bcmasp_intf *intf =
+		container_of(napi, struct bcmasp_intf, tx_napi);
+	struct bcmasp_intf_stats64 *stats = &intf->stats64;
+	struct device *kdev = &intf->parent->pdev->dev;
+	unsigned long read, released = 0;
+	struct bcmasp_tx_cb *txcb;
+	struct bcmasp_desc *desc;
+	dma_addr_t mapping;
+
+	read = bcmasp_intf_tx_read(intf);
+	while (intf->tx_spb_dma_read != read) {
+		txcb = &intf->tx_cbs[intf->tx_spb_clean_index];
+		mapping = dma_unmap_addr(txcb, dma_addr);
+
+		dma_unmap_single(kdev, mapping,
+				 dma_unmap_len(txcb, dma_len),
+				 DMA_TO_DEVICE);
+
+		if (txcb->last) {
+			dev_consume_skb_any(txcb->skb);
+
+			u64_stats_update_begin(&stats->syncp);
+			u64_stats_inc(&stats->tx_packets);
+			u64_stats_add(&stats->tx_bytes, txcb->bytes_sent);
+			u64_stats_update_end(&stats->syncp);
+		}
+
+		desc = &intf->tx_spb_cpu[intf->tx_spb_clean_index];
+
+		netif_dbg(intf, tx_done, intf->ndev,
+			  "%s dma_buf=%pad dma_len=0x%x flags=0x%x c_index=0x%x\n",
+			  __func__, &mapping, desc->size, desc->flags,
+			  intf->tx_spb_clean_index);
+
+		bcmasp_clean_txcb(intf, intf->tx_spb_clean_index);
+		released++;
+
+		intf->tx_spb_clean_index = incr_ring(intf->tx_spb_clean_index,
+						     DESC_RING_COUNT);
+		intf->tx_spb_dma_read = incr_first_byte(intf->tx_spb_dma_read,
+							intf->tx_spb_dma_addr,
+							DESC_RING_COUNT);
+	}
+
+	/* Ensure all descriptors have been written to DRAM for the hardware
+	 * to see updated contents.
+	 */
+	wmb();
+
+	napi_complete(&intf->tx_napi);
+
+	bcmasp_enable_tx_irq(intf, 1);
+
+	if (released)
+		netif_wake_queue(intf->ndev);
+
+	return 0;
+}
+
+static int bcmasp_rx_poll(struct napi_struct *napi, int budget)
+{
+	struct bcmasp_intf *intf =
+		container_of(napi, struct bcmasp_intf, rx_napi);
+	struct bcmasp_intf_stats64 *stats = &intf->stats64;
+	struct device *kdev = &intf->parent->pdev->dev;
+	unsigned long processed = 0;
+	struct bcmasp_desc *desc;
+	struct sk_buff *skb;
+	dma_addr_t valid;
+	void *data;
+	u64 flags;
+	u32 len;
+
+	valid = bcmasp_intf_rx_desc_read(intf) + 1;
+	if (valid == intf->rx_edpkt_dma_addr + DESC_RING_SIZE)
+		valid = intf->rx_edpkt_dma_addr;
+
+	while ((processed < budget) && (valid != intf->rx_edpkt_dma_read)) {
+		desc = &intf->rx_edpkt_cpu[intf->rx_edpkt_index];
+
+		/* Ensure that descriptor has been fully written to DRAM by
+		 * hardware before reading by the CPU
+		 */
+		rmb();
+
+		/* Calculate virt addr by offsetting from physical addr */
+		data = intf->rx_ring_cpu +
+			(DESC_ADDR(desc->buf) - intf->rx_ring_dma);
+
+		flags = DESC_FLAGS(desc->buf);
+		if (unlikely(flags & (DESC_CRC_ERR | DESC_RX_SYM_ERR))) {
+			if (net_ratelimit()) {
+				netif_err(intf, rx_status, intf->ndev,
+					  "flags=0x%llx\n", flags);
+			}
+
+			u64_stats_update_begin(&stats->syncp);
+			if (flags & DESC_CRC_ERR)
+				u64_stats_inc(&stats->rx_crc_errs);
+			if (flags & DESC_RX_SYM_ERR)
+				u64_stats_inc(&stats->rx_sym_errs);
+			u64_stats_update_end(&stats->syncp);
+
+			goto next;
+		}
+
+		dma_sync_single_for_cpu(kdev, DESC_ADDR(desc->buf), desc->size,
+					DMA_FROM_DEVICE);
+
+		len = desc->size;
+
+		skb = napi_alloc_skb(napi, len);
+		if (!skb) {
+			u64_stats_update_begin(&stats->syncp);
+			u64_stats_inc(&stats->rx_dropped);
+			u64_stats_update_end(&stats->syncp);
+			goto next;
+		}
+
+		skb_put(skb, len);
+		memcpy(skb->data, data, len);
+
+		skb_pull(skb, 2);
+		len -= 2;
+		if (likely(intf->crc_fwd)) {
+			skb_trim(skb, len - ETH_FCS_LEN);
+			len -= ETH_FCS_LEN;
+		}
+
+		if ((intf->ndev->features & NETIF_F_RXCSUM) &&
+		    (desc->buf & DESC_CHKSUM))
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+		skb->protocol = eth_type_trans(skb, intf->ndev);
+
+		napi_gro_receive(napi, skb);
+
+		u64_stats_update_begin(&stats->syncp);
+		u64_stats_inc(&stats->rx_packets);
+		u64_stats_add(&stats->rx_bytes, len);
+		u64_stats_update_end(&stats->syncp);
+
+next:
+		bcmasp_intf_rx_buffer_write(intf, (DESC_ADDR(desc->buf) +
+					    desc->size));
+
+		processed++;
+		intf->rx_edpkt_dma_read =
+			incr_first_byte(intf->rx_edpkt_dma_read,
+					intf->rx_edpkt_dma_addr,
+					DESC_RING_COUNT);
+		intf->rx_edpkt_index = incr_ring(intf->rx_edpkt_index,
+						 DESC_RING_COUNT);
+	}
+
+	bcmasp_intf_rx_desc_write(intf, intf->rx_edpkt_dma_read);
+
+	if (processed < budget) {
+		napi_complete_done(&intf->rx_napi, processed);
+		bcmasp_enable_rx_irq(intf, 1);
+	}
+
+	return processed;
+}
+
+static void bcmasp_adj_link(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct phy_device *phydev = dev->phydev;
+	u32 cmd_bits = 0, reg;
+	int changed = 0;
+
+	if (intf->old_link != phydev->link) {
+		changed = 1;
+		intf->old_link = phydev->link;
+	}
+
+	if (intf->old_duplex != phydev->duplex) {
+		changed = 1;
+		intf->old_duplex = phydev->duplex;
+	}
+
+	switch (phydev->speed) {
+	case SPEED_2500:
+		cmd_bits = UMC_CMD_SPEED_2500;
+		break;
+	case SPEED_1000:
+		cmd_bits = UMC_CMD_SPEED_1000;
+		break;
+	case SPEED_100:
+		cmd_bits = UMC_CMD_SPEED_100;
+		break;
+	case SPEED_10:
+		cmd_bits = UMC_CMD_SPEED_10;
+		break;
+	default:
+		break;
+	}
+	cmd_bits <<= UMC_CMD_SPEED_SHIFT;
+
+	if (phydev->duplex == DUPLEX_HALF)
+		cmd_bits |= UMC_CMD_HD_EN;
+
+	if (intf->old_pause != phydev->pause) {
+		changed = 1;
+		intf->old_pause = phydev->pause;
+	}
+
+	if (!phydev->pause)
+		cmd_bits |= UMC_CMD_RX_PAUSE_IGNORE | UMC_CMD_TX_PAUSE_IGNORE;
+
+	if (!changed)
+		return;
+
+	if (phydev->link) {
+		reg = umac_rl(intf, UMC_CMD);
+		reg &= ~((UMC_CMD_SPEED_MASK << UMC_CMD_SPEED_SHIFT) |
+			UMC_CMD_HD_EN | UMC_CMD_RX_PAUSE_IGNORE |
+			UMC_CMD_TX_PAUSE_IGNORE);
+		reg |= cmd_bits;
+		umac_wl(intf, reg, UMC_CMD);
+	}
+
+	reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+	if (phydev->link)
+		reg |= RGMII_LINK;
+	else
+		reg &= ~RGMII_LINK;
+	rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+
+	if (changed)
+		phy_print_status(phydev);
+}
+
+static int bcmasp_init_rx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+	struct page *buffer_pg;
+	dma_addr_t dma;
+	void *p;
+	u32 reg;
+	int ret;
+
+	intf->rx_buf_order = get_order(RING_BUFFER_SIZE);
+	buffer_pg = alloc_pages(GFP_KERNEL, intf->rx_buf_order);
+
+	dma = dma_map_page(kdev, buffer_pg, 0, RING_BUFFER_SIZE,
+			   DMA_FROM_DEVICE);
+	if (dma_mapping_error(kdev, dma)) {
+		__free_pages(buffer_pg, intf->rx_buf_order);
+		return -ENOMEM;
+	}
+	intf->rx_ring_cpu = page_to_virt(buffer_pg);
+	intf->rx_ring_dma = dma;
+	intf->rx_ring_dma_valid = intf->rx_ring_dma + RING_BUFFER_SIZE - 1;
+
+	p = dma_alloc_coherent(kdev, DESC_RING_SIZE, &intf->rx_edpkt_dma_addr,
+			       GFP_KERNEL);
+	if (!p) {
+		ret = -ENOMEM;
+		goto free_rx_ring;
+	}
+	intf->rx_edpkt_cpu = p;
+
+	netif_napi_add(intf->ndev, &intf->rx_napi, bcmasp_rx_poll);
+
+	intf->rx_edpkt_dma_read = intf->rx_edpkt_dma_addr;
+	intf->rx_edpkt_index = 0;
+
+	/* Make sure channels are disabled */
+	rx_edpkt_cfg_wl(intf, 0x0, RX_EDPKT_CFG_ENABLE);
+
+	/* Rx SPB */
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_READ);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_WRITE);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma, RX_EDPKT_RING_BUFFER_BASE);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma_valid,
+			RX_EDPKT_RING_BUFFER_END);
+	rx_edpkt_cfg_wq(intf, intf->rx_ring_dma_valid,
+			RX_EDPKT_RING_BUFFER_VALID);
+
+	/* EDPKT */
+	rx_edpkt_cfg_wl(intf, (RX_EDPKT_CFG_CFG0_RBUF_4K <<
+			RX_EDPKT_CFG_CFG0_DBUF_SHIFT) |
+		       (RX_EDPKT_CFG_CFG0_64_ALN <<
+			RX_EDPKT_CFG_CFG0_BALN_SHIFT) |
+		       (RX_EDPKT_CFG_CFG0_EFRM_STUF),
+			RX_EDPKT_CFG_CFG0);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_WRITE);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_READ);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr, RX_EDPKT_DMA_BASE);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr + (DESC_RING_SIZE - 1),
+			RX_EDPKT_DMA_END);
+	rx_edpkt_dma_wq(intf, intf->rx_edpkt_dma_addr + (DESC_RING_SIZE - 1),
+			RX_EDPKT_DMA_VALID);
+
+	reg = UMAC2FB_CFG_DEFAULT_EN |
+	      ((intf->channel + 11) << UMAC2FB_CFG_CHID_SHIFT);
+	reg |= (0xd << UMAC2FB_CFG_OK_SEND_SHIFT);
+	umac2fb_wl(intf, reg, UMAC2FB_CFG);
+
+	return 0;
+
+free_rx_ring:
+	dma_unmap_page(kdev, intf->rx_ring_dma, RING_BUFFER_SIZE,
+		       DMA_FROM_DEVICE);
+	__free_pages(virt_to_page(intf->rx_ring_cpu), intf->rx_buf_order);
+
+	return ret;
+}
+
+static void bcmasp_reclaim_free_all_rx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+
+	dma_free_coherent(kdev, DESC_RING_SIZE, intf->rx_edpkt_cpu,
+			  intf->rx_edpkt_dma_addr);
+	dma_unmap_page(kdev, intf->rx_ring_dma, RING_BUFFER_SIZE,
+		       DMA_FROM_DEVICE);
+	__free_pages(virt_to_page(intf->rx_ring_cpu), intf->rx_buf_order);
+}
+
+static int bcmasp_init_tx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+	void *p;
+	int ret;
+
+	p = dma_alloc_coherent(kdev, DESC_RING_SIZE, &intf->tx_spb_dma_addr,
+			       GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	intf->tx_spb_cpu = p;
+	intf->tx_spb_dma_valid = intf->tx_spb_dma_addr + DESC_RING_SIZE - 1;
+	intf->tx_spb_dma_read = intf->tx_spb_dma_addr;
+
+	intf->tx_cbs = kcalloc(DESC_RING_COUNT, sizeof(struct bcmasp_tx_cb),
+			       GFP_KERNEL);
+	if (!intf->tx_cbs) {
+		ret = -ENOMEM;
+		goto free_tx_spb;
+	}
+
+	intf->tx_spb_index = 0;
+	intf->tx_spb_clean_index = 0;
+
+	netif_napi_add_tx(intf->ndev, &intf->tx_napi, bcmasp_tx_poll);
+
+	/* Make sure channels are disabled */
+	tx_spb_ctrl_wl(intf, 0x0, TX_SPB_CTRL_ENABLE);
+	tx_epkt_core_wl(intf, 0x0, TX_EPKT_C_CFG_MISC);
+
+	/* Tx SPB */
+	tx_spb_ctrl_wl(intf, ((intf->channel + 8) << TX_SPB_CTRL_XF_BID_SHIFT),
+		       TX_SPB_CTRL_XF_CTRL2);
+	tx_pause_ctrl_wl(intf, (1 << (intf->channel + 8)), TX_PAUSE_MAP_VECTOR);
+	tx_spb_top_wl(intf, 0x1e, TX_SPB_TOP_BLKOUT);
+	tx_spb_top_wl(intf, 0x0, TX_SPB_TOP_SPRE_BW_CTRL);
+
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_addr, TX_SPB_DMA_READ);
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_addr, TX_SPB_DMA_BASE);
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_END);
+	tx_spb_dma_wq(intf, intf->tx_spb_dma_valid, TX_SPB_DMA_VALID);
+
+	return 0;
+
+free_tx_spb:
+	dma_free_coherent(kdev, DESC_RING_SIZE, intf->tx_spb_cpu,
+			  intf->tx_spb_dma_addr);
+
+	return ret;
+}
+
+static void bcmasp_reclaim_free_all_tx(struct bcmasp_intf *intf)
+{
+	struct device *kdev = &intf->parent->pdev->dev;
+
+	/* Free descriptors */
+	dma_free_coherent(kdev, DESC_RING_SIZE, intf->tx_spb_cpu,
+			  intf->tx_spb_dma_addr);
+
+	/* Free cbs */
+	kfree(intf->tx_cbs);
+}
+
+static void bcmasp_ephy_enable_set(struct bcmasp_intf *intf, bool enable)
+{
+	u32 mask = RGMII_EPHY_CFG_IDDQ_BIAS | RGMII_EPHY_CFG_EXT_PWRDOWN |
+		   RGMII_EPHY_CFG_IDDQ_GLOBAL;
+	u32 reg;
+
+	reg = rgmii_rl(intf, RGMII_EPHY_CNTRL);
+	if (enable) {
+		reg &= ~RGMII_EPHY_CK25_DIS;
+		rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+		mdelay(1);
+
+		reg &= ~mask;
+		reg |= RGMII_EPHY_RESET;
+		rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+		mdelay(1);
+
+		reg &= ~RGMII_EPHY_RESET;
+	} else {
+		reg |= mask | RGMII_EPHY_RESET;
+		rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+		mdelay(1);
+		reg |= RGMII_EPHY_CK25_DIS;
+	}
+	rgmii_wl(intf, reg, RGMII_EPHY_CNTRL);
+	mdelay(1);
+
+	/* Set or clear the LED control override to avoid lighting up LEDs
+	 * while the EPHY is powered off and drawing unnecessary current.
+	 */
+	reg = rgmii_rl(intf, RGMII_SYS_LED_CNTRL);
+	if (enable)
+		reg &= ~RGMII_SYS_LED_CNTRL_LINK_OVRD;
+	else
+		reg |= RGMII_SYS_LED_CNTRL_LINK_OVRD;
+	rgmii_wl(intf, reg, RGMII_SYS_LED_CNTRL);
+}
+
+static void bcmasp_rgmii_mode_en_set(struct bcmasp_intf *intf, bool enable)
+{
+	u32 reg;
+
+	reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+	reg &= ~RGMII_OOB_DIS;
+	if (enable)
+		reg |= RGMII_MODE_EN;
+	else
+		reg &= ~RGMII_MODE_EN;
+	rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+}
+
+static void bcmasp_netif_deinit(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	u32 reg, timeout = 1000;
+
+	napi_disable(&intf->tx_napi);
+
+	bcmasp_enable_tx(intf, 0);
+
+	/* Flush any TX packets in the pipe */
+	tx_spb_dma_wl(intf, TX_SPB_DMA_FIFO_FLUSH, TX_SPB_DMA_FIFO_CTRL);
+	do {
+		reg = tx_spb_dma_rl(intf, TX_SPB_DMA_FIFO_STATUS);
+		if (!(reg & TX_SPB_DMA_FIFO_FLUSH))
+			break;
+		usleep_range(1000, 2000);
+	} while (timeout-- > 0);
+	tx_spb_dma_wl(intf, 0x0, TX_SPB_DMA_FIFO_CTRL);
+
+	umac_enable_set(intf, UMC_CMD_TX_EN, 0);
+
+	phy_stop(dev->phydev);
+
+	umac_enable_set(intf, UMC_CMD_RX_EN, 0);
+
+	bcmasp_flush_rx_port(intf);
+	usleep_range(1000, 2000);
+	bcmasp_enable_rx(intf, 0);
+
+	napi_disable(&intf->rx_napi);
+
+	/* Disable interrupts */
+	bcmasp_enable_tx_irq(intf, 0);
+	bcmasp_enable_rx_irq(intf, 0);
+
+	netif_napi_del(&intf->tx_napi);
+	bcmasp_reclaim_free_all_tx(intf);
+
+	netif_napi_del(&intf->rx_napi);
+	bcmasp_reclaim_free_all_rx(intf);
+}
+
+static int bcmasp_stop(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	netif_dbg(intf, ifdown, dev, "bcmasp stop\n");
+
+	/* Stop tx from updating HW */
+	netif_tx_disable(dev);
+
+	bcmasp_netif_deinit(dev);
+
+	phy_disconnect(dev->phydev);
+
+	/* Disable internal EPHY or external PHY */
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, false);
+	else
+		bcmasp_rgmii_mode_en_set(intf, false);
+
+	/* Disable the interface clocks */
+	bcmasp_core_clock_set_intf(intf, false);
+
+	clk_disable_unprepare(intf->parent->clk);
+
+	return 0;
+}
+
+static void bcmasp_configure_port(struct bcmasp_intf *intf)
+{
+	u32 reg, id_mode_dis = 0;
+
+	reg = rgmii_rl(intf, RGMII_PORT_CNTRL);
+	reg &= ~RGMII_PORT_MODE_MASK;
+
+	switch (intf->phy_interface) {
+	case PHY_INTERFACE_MODE_RGMII:
+		/* RGMII_NO_ID: TXC transitions at the same time as TXD
+		 *		(requires PCB or receiver-side delay)
+		 * RGMII:	Add 2ns delay on TXC (90 degree shift)
+		 *
+		 * ID is implicitly disabled for 100Mbps (RG)MII operation.
+		 */
+		id_mode_dis = RGMII_ID_MODE_DIS;
+		fallthrough;
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		reg |= RGMII_PORT_MODE_EXT_GPHY;
+		break;
+	case PHY_INTERFACE_MODE_MII:
+		reg |= RGMII_PORT_MODE_EXT_EPHY;
+		break;
+	default:
+		break;
+	}
+
+	if (intf->internal_phy)
+		reg |= RGMII_PORT_MODE_EPHY;
+
+	rgmii_wl(intf, reg, RGMII_PORT_CNTRL);
+
+	reg = rgmii_rl(intf, RGMII_OOB_CNTRL);
+	reg &= ~RGMII_ID_MODE_DIS;
+	reg |= id_mode_dis;
+	rgmii_wl(intf, reg, RGMII_OOB_CNTRL);
+}
+
+static int bcmasp_netif_init(struct net_device *dev, bool phy_connect)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	phy_interface_t phy_iface = intf->phy_interface;
+	u32 phy_flags = PHY_BRCM_AUTO_PWRDWN_ENABLE |
+			PHY_BRCM_DIS_TXCRXC_NOENRGY |
+			PHY_BRCM_IDDQ_SUSPEND;
+	struct phy_device *phydev = NULL;
+	int ret;
+
+	/* Always enable interface clocks */
+	bcmasp_core_clock_set_intf(intf, true);
+
+	/* Enable internal PHY or external PHY before any MAC activity */
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, true);
+	else
+		bcmasp_rgmii_mode_en_set(intf, true);
+	bcmasp_configure_port(intf);
+
+	/* This is an ugly quirk but we have not been correctly
+	 * interpreting the phy_interface values and we have done that
+	 * across different drivers, so at least we are consistent in
+	 * our mistakes.
+	 *
+	 * When the Generic PHY driver is in use either the PHY has
+	 * been strapped or programmed correctly by the boot loader so
+	 * we should stick to our incorrect interpretation since we
+	 * have validated it.
+	 *
+	 * Now when a dedicated PHY driver is in use, we need to
+	 * reverse the meaning of the phy_interface_mode values to
+	 * something that the PHY driver will interpret and act on such
+	 * that we have two mistakes canceling themselves so to speak.
+	 * We only do this for the two modes that GENET driver
+	 * officially supports on Broadcom STB chips:
+	 * PHY_INTERFACE_MODE_RGMII and PHY_INTERFACE_MODE_RGMII_TXID.
+	 * Other modes are not *officially* supported with the boot
+	 * loader and the scripted environment generating Device Tree
+	 * blobs for those platforms.
+	 *
+	 * Note that internal PHY and fixed-link configurations are not
+	 * affected because they use different phy_interface_t values
+	 * or the Generic PHY driver.
+	 */
+	switch (phy_iface) {
+	case PHY_INTERFACE_MODE_RGMII:
+		phy_iface = PHY_INTERFACE_MODE_RGMII_ID;
+		break;
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		phy_iface = PHY_INTERFACE_MODE_RGMII_RXID;
+		break;
+	default:
+		break;
+	}
+
+	if (phy_connect) {
+		phydev = of_phy_connect(dev, intf->phy_dn,
+					bcmasp_adj_link, phy_flags,
+					phy_iface);
+		if (!phydev) {
+			ret = -ENODEV;
+			netdev_err(dev, "could not attach to PHY\n");
+			goto err_phy_disable;
+		}
+	} else {
+		ret = phy_resume(dev->phydev);
+		if (ret)
+			goto err_phy_disable;
+	}
+
+	umac_reset(intf);
+
+	umac_init(intf);
+
+	/* Disable the UniMAC RX/TX */
+	umac_enable_set(intf, (UMC_CMD_RX_EN | UMC_CMD_TX_EN), 0);
+
+	umac_set_hw_addr(intf, dev->dev_addr);
+
+	intf->old_duplex = -1;
+	intf->old_link = -1;
+	intf->old_pause = -1;
+
+	ret = bcmasp_init_tx(intf);
+	if (ret)
+		goto err_phy_disconnect;
+
+	/* Turn on asp */
+	bcmasp_enable_tx(intf, 1);
+
+	ret = bcmasp_init_rx(intf);
+	if (ret)
+		goto err_reclaim_tx;
+
+	bcmasp_enable_rx(intf, 1);
+
+	/* Turn on UniMAC TX/RX */
+	umac_enable_set(intf, (UMC_CMD_RX_EN | UMC_CMD_TX_EN), 1);
+
+	intf->crc_fwd = !!(umac_rl(intf, UMC_CMD) & UMC_CMD_CRC_FWD);
+
+	bcmasp_netif_start(dev);
+
+	netif_start_queue(dev);
+
+	return 0;
+
+err_reclaim_tx:
+	bcmasp_reclaim_free_all_tx(intf);
+err_phy_disconnect:
+	if (phydev)
+		phy_disconnect(phydev);
+err_phy_disable:
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, false);
+	else
+		bcmasp_rgmii_mode_en_set(intf, false);
+	return ret;
+}
+
+static int bcmasp_open(struct net_device *dev)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	int ret;
+
+	netif_dbg(intf, ifup, dev, "bcmasp open\n");
+
+	ret = clk_prepare_enable(intf->parent->clk);
+	if (ret)
+		return ret;
+
+	ret = bcmasp_netif_init(dev, true);
+	if (ret)
+		clk_disable_unprepare(intf->parent->clk);
+
+	return ret;
+}
+
+static void bcmasp_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	netif_dbg(intf, tx_err, dev, "transmit timeout!\n");
+}
+
+static int bcmasp_get_phys_port_name(struct net_device *dev,
+				     char *name, size_t len)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+
+	if (snprintf(name, len, "p%d", intf->port) >= len)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void bcmasp_get_stats64(struct net_device *dev,
+			       struct rtnl_link_stats64 *stats)
+{
+	struct bcmasp_intf *intf = netdev_priv(dev);
+	struct bcmasp_intf_stats64 *lstats;
+	unsigned int start;
+
+	lstats = &intf->stats64;
+
+	do {
+		start = u64_stats_fetch_begin(&lstats->syncp);
+		stats->rx_packets = u64_stats_read(&lstats->rx_packets);
+		stats->rx_bytes = u64_stats_read(&lstats->rx_bytes);
+		stats->rx_dropped = u64_stats_read(&lstats->rx_dropped);
+		stats->rx_crc_errors = u64_stats_read(&lstats->rx_crc_errs);
+		stats->rx_frame_errors = u64_stats_read(&lstats->rx_sym_errs);
+		stats->rx_errors = stats->rx_crc_errors + stats->rx_frame_errors;
+
+		stats->tx_packets = u64_stats_read(&lstats->tx_packets);
+		stats->tx_bytes = u64_stats_read(&lstats->tx_bytes);
+	} while (u64_stats_fetch_retry(&lstats->syncp, start));
+}
+
+static const struct net_device_ops bcmasp_netdev_ops = {
+	.ndo_open		= bcmasp_open,
+	.ndo_stop		= bcmasp_stop,
+	.ndo_start_xmit		= bcmasp_xmit,
+	.ndo_tx_timeout		= bcmasp_tx_timeout,
+	.ndo_set_rx_mode	= bcmasp_set_rx_mode,
+	.ndo_get_phys_port_name	= bcmasp_get_phys_port_name,
+	.ndo_eth_ioctl		= phy_do_ioctl_running,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_get_stats64	= bcmasp_get_stats64,
+};
+
+static void bcmasp_map_res(struct bcmasp_priv *priv, struct bcmasp_intf *intf)
+{
+	/* Per port */
+	intf->res.umac = priv->base + UMC_OFFSET(intf);
+	intf->res.umac2fb = priv->base + (priv->hw_info->umac2fb +
+					  (intf->port * 0x4));
+	intf->res.rgmii = priv->base + RGMII_OFFSET(intf);
+
+	/* Per ch */
+	intf->tx_spb_dma = priv->base + TX_SPB_DMA_OFFSET(intf);
+	intf->res.tx_spb_ctrl = priv->base + TX_SPB_CTRL_OFFSET(intf);
+	intf->res.tx_spb_top = priv->base + TX_SPB_TOP_OFFSET(intf);
+	intf->res.tx_epkt_core = priv->base + TX_EPKT_C_OFFSET(intf);
+	intf->res.tx_pause_ctrl = priv->base + TX_PAUSE_CTRL_OFFSET(intf);
+
+	intf->rx_edpkt_dma = priv->base + RX_EDPKT_DMA_OFFSET(intf);
+	intf->rx_edpkt_cfg = priv->base + RX_EDPKT_CFG_OFFSET(intf);
+}
+
+#define MAX_IRQ_STR_LEN		64
+struct bcmasp_intf *bcmasp_interface_create(struct bcmasp_priv *priv,
+					    struct device_node *ndev_dn, int i)
+{
+	struct device *dev = &priv->pdev->dev;
+	struct bcmasp_intf *intf;
+	struct net_device *ndev;
+	int ch, port, ret;
+
+	if (of_property_read_u32(ndev_dn, "reg", &port)) {
+		dev_warn(dev, "%s: invalid port number\n", ndev_dn->name);
+		goto err;
+	}
+
+	if (of_property_read_u32(ndev_dn, "brcm,channel", &ch)) {
+		dev_warn(dev, "%s: invalid ch number\n", ndev_dn->name);
+		goto err;
+	}
+
+	ndev = alloc_etherdev(sizeof(struct bcmasp_intf));
+	if (!ndev) {
+		dev_warn(dev, "%s: unable to alloc ndev\n", ndev_dn->name);
+		goto err;
+	}
+	intf = netdev_priv(ndev);
+
+	intf->parent = priv;
+	intf->ndev = ndev;
+	intf->channel = ch;
+	intf->port = port;
+	intf->ndev_dn = ndev_dn;
+	intf->index = i;
+
+	ret = of_get_phy_mode(ndev_dn, &intf->phy_interface);
+	if (ret < 0) {
+		dev_err(dev, "invalid PHY mode property\n");
+		goto err_free_netdev;
+	}
+
+	if (intf->phy_interface == PHY_INTERFACE_MODE_INTERNAL)
+		intf->internal_phy = true;
+
+	intf->phy_dn = of_parse_phandle(ndev_dn, "phy-handle", 0);
+	if (!intf->phy_dn && of_phy_is_fixed_link(ndev_dn)) {
+		ret = of_phy_register_fixed_link(ndev_dn);
+		if (ret) {
+			dev_warn(dev, "%s: failed to register fixed PHY\n",
+				 ndev_dn->name);
+			goto err_free_netdev;
+		}
+		intf->phy_dn = ndev_dn;
+	}
+
+	/* Map resource */
+	bcmasp_map_res(priv, intf);
+
+	if ((!phy_interface_mode_is_rgmii(intf->phy_interface) &&
+	     intf->phy_interface != PHY_INTERFACE_MODE_MII &&
+	     intf->phy_interface != PHY_INTERFACE_MODE_INTERNAL) ||
+	    (intf->port != 1 && intf->internal_phy)) {
+		netdev_err(intf->ndev, "invalid PHY mode: %s for port %d\n",
+			   phy_modes(intf->phy_interface), intf->port);
+		ret = -EINVAL;
+		goto err_free_netdev;
+	}
+
+	ret = of_get_ethdev_address(ndev_dn, ndev);
+	if (ret) {
+		netdev_warn(ndev, "using random Ethernet MAC\n");
+		eth_hw_addr_random(ndev);
+	}
+
+	SET_NETDEV_DEV(ndev, dev);
+	intf->ops = &bcmasp_intf_ops;
+	ndev->netdev_ops = &bcmasp_netdev_ops;
+	ndev->ethtool_ops = &bcmasp_ethtool_ops;
+	intf->msg_enable = netif_msg_init(-1, NETIF_MSG_DRV |
+					  NETIF_MSG_PROBE |
+					  NETIF_MSG_LINK);
+	ndev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
+			  NETIF_F_RXCSUM;
+	ndev->hw_features |= ndev->features;
+	ndev->needed_headroom += sizeof(struct bcmasp_pkt_offload);
+
+	return intf;
+
+err_free_netdev:
+	free_netdev(ndev);
+err:
+	return NULL;
+}
+
+void bcmasp_interface_destroy(struct bcmasp_intf *intf)
+{
+	if (intf->ndev->reg_state == NETREG_REGISTERED)
+		unregister_netdev(intf->ndev);
+	if (of_phy_is_fixed_link(intf->ndev_dn))
+		of_phy_deregister_fixed_link(intf->ndev_dn);
+	free_netdev(intf->ndev);
+}
+
+int bcmasp_interface_suspend(struct bcmasp_intf *intf)
+{
+	struct net_device *dev = intf->ndev;
+	int ret = 0;
+
+	if (!netif_running(dev))
+		return 0;
+
+	netif_device_detach(dev);
+
+	bcmasp_netif_deinit(dev);
+
+	ret = phy_suspend(dev->phydev);
+	if (ret)
+		goto out;
+
+	if (intf->internal_phy)
+		bcmasp_ephy_enable_set(intf, false);
+	else
+		bcmasp_rgmii_mode_en_set(intf, false);
+
+	/* If Wake-on-LAN is disabled, we can safely
+	 * disable the network interface clocks.
+	 */
+	bcmasp_core_clock_set_intf(intf, false);
+
+	clk_disable_unprepare(intf->parent->clk);
+
+	return ret;
+
+out:
+	bcmasp_netif_init(dev, false);
+	return ret;
+}
+
+int bcmasp_interface_resume(struct bcmasp_intf *intf)
+{
+	struct net_device *dev = intf->ndev;
+	int ret;
+
+	if (!netif_running(dev))
+		return 0;
+
+	ret = clk_prepare_enable(intf->parent->clk);
+	if (ret)
+		return ret;
+
+	ret = bcmasp_netif_init(dev, false);
+	if (ret)
+		goto out;
+
+	netif_device_attach(dev);
+
+	return 0;
+
+out:
+	clk_disable_unprepare(intf->parent->clk);
+	return ret;
+}
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
new file mode 100644
index 000000000000..b259a475207f
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf_defs.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BCMASP_INTF_DEFS_H
+#define __BCMASP_INTF_DEFS_H
+
+#define UMC_OFFSET(intf)		\
+	((((intf)->port) * 0x800) + 0xc000)
+#define  UMC_CMD			0x008
+#define   UMC_CMD_TX_EN			BIT(0)
+#define   UMC_CMD_RX_EN			BIT(1)
+#define   UMC_CMD_SPEED_SHIFT		0x2
+#define    UMC_CMD_SPEED_MASK		0x3
+#define    UMC_CMD_SPEED_10		0x0
+#define    UMC_CMD_SPEED_100		0x1
+#define    UMC_CMD_SPEED_1000		0x2
+#define    UMC_CMD_SPEED_2500		0x3
+#define   UMC_CMD_PROMISC		BIT(4)
+#define   UMC_CMD_PAD_EN		BIT(5)
+#define   UMC_CMD_CRC_FWD		BIT(6)
+#define   UMC_CMD_PAUSE_FWD		BIT(7)
+#define   UMC_CMD_RX_PAUSE_IGNORE	BIT(8)
+#define   UMC_CMD_TX_ADDR_INS		BIT(9)
+#define   UMC_CMD_HD_EN			BIT(10)
+#define   UMC_CMD_SW_RESET		BIT(13)
+#define   UMC_CMD_LCL_LOOP_EN		BIT(15)
+#define   UMC_CMD_AUTO_CONFIG		BIT(22)
+#define   UMC_CMD_CNTL_FRM_EN		BIT(23)
+#define   UMC_CMD_NO_LEN_CHK		BIT(24)
+#define   UMC_CMD_RMT_LOOP_EN		BIT(25)
+#define   UMC_CMD_PRBL_EN		BIT(27)
+#define   UMC_CMD_TX_PAUSE_IGNORE	BIT(28)
+#define   UMC_CMD_TX_RX_EN		BIT(29)
+#define   UMC_CMD_RUNT_FILTER_DIS	BIT(30)
+#define  UMC_MAC0			0x0c
+#define  UMC_MAC1			0x10
+#define  UMC_FRM_LEN			0x14
+#define  UMC_EEE_CTRL			0x64
+#define   EN_LPI_RX_PAUSE		BIT(0)
+#define   EN_LPI_TX_PFC			BIT(1)
+#define   EN_LPI_TX_PAUSE		BIT(2)
+#define   EEE_EN			BIT(3)
+#define   RX_FIFO_CHECK			BIT(4)
+#define   EEE_TX_CLK_DIS		BIT(5)
+#define   DIS_EEE_10M			BIT(6)
+#define   LP_IDLE_PREDICTION_MODE	BIT(7)
+#define  UMC_EEE_LPI_TIMER		0x68
+#define  UMC_PAUSE_CNTRL		0x330
+#define  UMC_TX_FLUSH			0x334
+#define  UMC_MIB_START			0x400
+#define  UMC_MIB_CNTRL			0x580
+#define   UMC_MIB_CNTRL_RX_CNT_RST	BIT(0)
+#define   UMC_MIB_CNTRL_RUNT_CNT_RST	BIT(1)
+#define   UMC_MIB_CNTRL_TX_CNT_RST	BIT(2)
+#define  UMC_RX_MAX_PKT_SZ		0x608
+#define  UMC_MPD_CTRL			0x620
+#define   UMC_MPD_CTRL_MPD_EN		BIT(0)
+#define   UMC_MPD_CTRL_PSW_EN		BIT(27)
+#define  UMC_PSW_MS			0x624
+#define  UMC_PSW_LS			0x628
+
+#define UMAC2FB_OFFSET_2_1		0x9f044
+#define UMAC2FB_OFFSET			0x9f03c
+#define  UMAC2FB_CFG			0x0
+#define   UMAC2FB_CFG_OPUT_EN		BIT(0)
+#define   UMAC2FB_CFG_VLAN_EN		BIT(1)
+#define   UMAC2FB_CFG_SNAP_EN		BIT(2)
+#define   UMAC2FB_CFG_BCM_TG_EN		BIT(3)
+#define   UMAC2FB_CFG_IPUT_EN		BIT(4)
+#define   UMAC2FB_CFG_CHID_SHIFT	8
+#define   UMAC2FB_CFG_OK_SEND_SHIFT	24
+#define   UMAC2FB_CFG_DEFAULT_EN	\
+		(UMAC2FB_CFG_OPUT_EN | UMAC2FB_CFG_VLAN_EN \
+		| UMAC2FB_CFG_SNAP_EN | UMAC2FB_CFG_IPUT_EN)
+
+#define RGMII_OFFSET(intf)	\
+	((((intf)->port) * 0x100) + 0xd000)
+#define  RGMII_EPHY_CNTRL		0x00
+#define    RGMII_EPHY_CFG_IDDQ_BIAS	BIT(0)
+#define    RGMII_EPHY_CFG_EXT_PWRDOWN	BIT(1)
+#define    RGMII_EPHY_CFG_FORCE_DLL_EN	BIT(2)
+#define    RGMII_EPHY_CFG_IDDQ_GLOBAL	BIT(3)
+#define    RGMII_EPHY_CK25_DIS		BIT(4)
+#define    RGMII_EPHY_RESET		BIT(7)
+#define  RGMII_OOB_CNTRL		0x0c
+#define   RGMII_LINK			BIT(4)
+#define   RGMII_OOB_DIS			BIT(5)
+#define   RGMII_MODE_EN			BIT(6)
+#define   RGMII_ID_MODE_DIS		BIT(16)
+
+#define RGMII_PORT_CNTRL		0x60
+#define   RGMII_PORT_MODE_EPHY		0
+#define   RGMII_PORT_MODE_GPHY		1
+#define   RGMII_PORT_MODE_EXT_EPHY	2
+#define   RGMII_PORT_MODE_EXT_GPHY	3
+#define   RGMII_PORT_MODE_EXT_RVMII	4
+#define   RGMII_PORT_MODE_MASK		GENMASK(2, 0)
+
+#define RGMII_SYS_LED_CNTRL		0x74
+#define  RGMII_SYS_LED_CNTRL_LINK_OVRD	BIT(15)
+
+#define TX_SPB_DMA_OFFSET(intf) \
+	((((intf)->channel) * 0x30) + 0x48180)
+#define  TX_SPB_DMA_READ		0x00
+#define  TX_SPB_DMA_BASE		0x08
+#define  TX_SPB_DMA_END			0x10
+#define  TX_SPB_DMA_VALID		0x18
+#define  TX_SPB_DMA_FIFO_CTRL		0x20
+#define   TX_SPB_DMA_FIFO_FLUSH		BIT(0)
+#define  TX_SPB_DMA_FIFO_STATUS		0x24
+
+#define TX_SPB_CTRL_OFFSET(intf) \
+	((((intf)->channel) * 0x68) + 0x49340)
+#define  TX_SPB_CTRL_ENABLE		0x0
+#define   TX_SPB_CTRL_ENABLE_EN		BIT(0)
+#define  TX_SPB_CTRL_XF_CTRL2		0x20
+#define   TX_SPB_CTRL_XF_BID_SHIFT	16
+
+#define TX_SPB_TOP_OFFSET(intf) \
+	((((intf)->channel) * 0x1c) + 0x4a0e0)
+#define TX_SPB_TOP_BLKOUT		0x0
+#define TX_SPB_TOP_SPRE_BW_CTRL		0x4
+
+#define TX_EPKT_C_OFFSET(intf) \
+	((((intf)->channel) * 0x120) + 0x40900)
+#define  TX_EPKT_C_CFG_MISC		0x0
+#define   TX_EPKT_C_CFG_MISC_EN		BIT(0)
+#define   TX_EPKT_C_CFG_MISC_PT		BIT(1)
+#define   TX_EPKT_C_CFG_MISC_PS_SHIFT	14
+#define   TX_EPKT_C_CFG_MISC_FD_SHIFT	20
+
+#define TX_PAUSE_CTRL_OFFSET(intf) \
+	((((intf)->channel * 0xc) + 0x49a20))
+#define  TX_PAUSE_MAP_VECTOR		0x8
+
+#define RX_EDPKT_DMA_OFFSET(intf) \
+	((((intf)->channel) * 0x38) + 0x9ca00)
+#define  RX_EDPKT_DMA_WRITE		0x00
+#define  RX_EDPKT_DMA_READ		0x08
+#define  RX_EDPKT_DMA_BASE		0x10
+#define  RX_EDPKT_DMA_END		0x18
+#define  RX_EDPKT_DMA_VALID		0x20
+#define  RX_EDPKT_DMA_FULLNESS		0x28
+#define  RX_EDPKT_DMA_MIN_THRES		0x2c
+#define  RX_EDPKT_DMA_CH_XONOFF		0x30
+
+#define RX_EDPKT_CFG_OFFSET(intf) \
+	((((intf)->channel) * 0x70) + 0x9c600)
+#define  RX_EDPKT_CFG_CFG0		0x0
+#define   RX_EDPKT_CFG_CFG0_DBUF_SHIFT	9
+#define    RX_EDPKT_CFG_CFG0_RBUF	0x0
+#define    RX_EDPKT_CFG_CFG0_RBUF_4K	0x1
+#define    RX_EDPKT_CFG_CFG0_BUF_4K	0x2
+/* EFRM STUFF, 0 = no byte stuff, 1 = two byte stuff */
+#define   RX_EDPKT_CFG_CFG0_EFRM_STUF	BIT(11)
+#define   RX_EDPKT_CFG_CFG0_BALN_SHIFT	12
+#define    RX_EDPKT_CFG_CFG0_NO_ALN	0
+#define    RX_EDPKT_CFG_CFG0_4_ALN	2
+#define    RX_EDPKT_CFG_CFG0_64_ALN	6
+#define  RX_EDPKT_RING_BUFFER_WRITE	0x38
+#define  RX_EDPKT_RING_BUFFER_READ	0x40
+#define  RX_EDPKT_RING_BUFFER_BASE	0x48
+#define  RX_EDPKT_RING_BUFFER_END	0x50
+#define  RX_EDPKT_RING_BUFFER_VALID	0x58
+#define  RX_EDPKT_CFG_ENABLE		0x6c
+#define   RX_EDPKT_CFG_ENABLE_EN	BIT(0)
+
+#define RX_SPB_DMA_OFFSET(intf) \
+	((((intf)->channel) * 0x30) + 0xa0000)
+#define  RX_SPB_DMA_READ		0x00
+#define  RX_SPB_DMA_BASE		0x08
+#define  RX_SPB_DMA_END			0x10
+#define  RX_SPB_DMA_VALID		0x18
+#define  RX_SPB_DMA_FIFO_CTRL		0x20
+#define   RX_SPB_DMA_FIFO_FLUSH		BIT(0)
+#define  RX_SPB_DMA_FIFO_STATUS		0x24
+
+#define RX_SPB_CTRL_OFFSET(intf) \
+	((((intf)->channel - 6) * 0x68) + 0xa1000)
+#define  RX_SPB_CTRL_ENABLE		0x00
+#define   RX_SPB_CTRL_ENABLE_EN		BIT(0)
+
+#define RX_PAUSE_CTRL_OFFSET(intf) \
+	((((intf)->channel - 6) * 0x4) + 0xa1138)
+#define  RX_PAUSE_MAP_VECTOR		0x00
+
+#define RX_SPB_TOP_CTRL_OFFSET(intf) \
+	((((intf)->channel - 6) * 0x14) + 0xa2000)
+#define  RX_SPB_TOP_BLKOUT		0x00
+
+#define NUM_4K_BUFFERS			32
+#define RING_BUFFER_SIZE		(PAGE_SIZE * NUM_4K_BUFFERS)
+
+#define DESC_RING_COUNT			(64 * NUM_4K_BUFFERS)
+#define DESC_SIZE			16
+#define DESC_RING_SIZE			(DESC_RING_COUNT * DESC_SIZE)
+
+#endif
-- 
2.7.4


--000000000000559e73060065b9ea
Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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--000000000000559e73060065b9ea--