Merge branch 'net-dsa-lantiq_gswip-prepare-for-supporting-new-features'

Daniel Golle says:

====================
net: dsa: lantiq_gswip: prepare for supporting new features

Prepare for supporting the newer standalone MaxLinear GSW1xx switch
family by refactoring the existing lantiq_gswip driver.
This is the first of a total of 3 series and doesn't yet introduce
any functional changes, but rather just makes the driver more
flexible, so new hardware and features can be supported in future.

This series has been preceded by an RFC series which covers everything
needed to support the MaxLinear GSW1xx family of switches. Andrew Lunn
had suggested to start with the 8 patches now submitted as they prepare
but don't yet introduce any functional changes.

Everything has been compile and runtime tested on AVM Fritz!Box 7490
(GSWIP version 2.1, VR9 v1.2)

Link: https://lore.kernel.org/aKDhFCNwjDDwRKsI@pidgin.makrotopia.org
====================

Link: https://patch.msgid.link/cover.1755878232.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2025-08-25 15:15:51 -07:00
commit 6e8e6baf16
3 changed files with 375 additions and 320 deletions

View File

@ -25,7 +25,9 @@
* between all LAN ports by default.
*/
#include <linux/clk.h>
#include "lantiq_gswip.h"
#include "lantiq_pce.h"
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/firmware.h>
@ -39,258 +41,13 @@
#include <linux/of_platform.h>
#include <linux/phy.h>
#include <linux/phylink.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <net/dsa.h>
#include <dt-bindings/mips/lantiq_rcu_gphy.h>
#include "lantiq_pce.h"
/* GSWIP MDIO Registers */
#define GSWIP_MDIO_GLOB 0x00
#define GSWIP_MDIO_GLOB_ENABLE BIT(15)
#define GSWIP_MDIO_CTRL 0x08
#define GSWIP_MDIO_CTRL_BUSY BIT(12)
#define GSWIP_MDIO_CTRL_RD BIT(11)
#define GSWIP_MDIO_CTRL_WR BIT(10)
#define GSWIP_MDIO_CTRL_PHYAD_MASK 0x1f
#define GSWIP_MDIO_CTRL_PHYAD_SHIFT 5
#define GSWIP_MDIO_CTRL_REGAD_MASK 0x1f
#define GSWIP_MDIO_READ 0x09
#define GSWIP_MDIO_WRITE 0x0A
#define GSWIP_MDIO_MDC_CFG0 0x0B
#define GSWIP_MDIO_MDC_CFG1 0x0C
#define GSWIP_MDIO_PHYp(p) (0x15 - (p))
#define GSWIP_MDIO_PHY_LINK_MASK 0x6000
#define GSWIP_MDIO_PHY_LINK_AUTO 0x0000
#define GSWIP_MDIO_PHY_LINK_DOWN 0x4000
#define GSWIP_MDIO_PHY_LINK_UP 0x2000
#define GSWIP_MDIO_PHY_SPEED_MASK 0x1800
#define GSWIP_MDIO_PHY_SPEED_AUTO 0x1800
#define GSWIP_MDIO_PHY_SPEED_M10 0x0000
#define GSWIP_MDIO_PHY_SPEED_M100 0x0800
#define GSWIP_MDIO_PHY_SPEED_G1 0x1000
#define GSWIP_MDIO_PHY_FDUP_MASK 0x0600
#define GSWIP_MDIO_PHY_FDUP_AUTO 0x0000
#define GSWIP_MDIO_PHY_FDUP_EN 0x0200
#define GSWIP_MDIO_PHY_FDUP_DIS 0x0600
#define GSWIP_MDIO_PHY_FCONTX_MASK 0x0180
#define GSWIP_MDIO_PHY_FCONTX_AUTO 0x0000
#define GSWIP_MDIO_PHY_FCONTX_EN 0x0100
#define GSWIP_MDIO_PHY_FCONTX_DIS 0x0180
#define GSWIP_MDIO_PHY_FCONRX_MASK 0x0060
#define GSWIP_MDIO_PHY_FCONRX_AUTO 0x0000
#define GSWIP_MDIO_PHY_FCONRX_EN 0x0020
#define GSWIP_MDIO_PHY_FCONRX_DIS 0x0060
#define GSWIP_MDIO_PHY_ADDR_MASK 0x001f
#define GSWIP_MDIO_PHY_MASK (GSWIP_MDIO_PHY_ADDR_MASK | \
GSWIP_MDIO_PHY_FCONRX_MASK | \
GSWIP_MDIO_PHY_FCONTX_MASK | \
GSWIP_MDIO_PHY_LINK_MASK | \
GSWIP_MDIO_PHY_SPEED_MASK | \
GSWIP_MDIO_PHY_FDUP_MASK)
/* GSWIP MII Registers */
#define GSWIP_MII_CFGp(p) (0x2 * (p))
#define GSWIP_MII_CFG_RESET BIT(15)
#define GSWIP_MII_CFG_EN BIT(14)
#define GSWIP_MII_CFG_ISOLATE BIT(13)
#define GSWIP_MII_CFG_LDCLKDIS BIT(12)
#define GSWIP_MII_CFG_RGMII_IBS BIT(8)
#define GSWIP_MII_CFG_RMII_CLK BIT(7)
#define GSWIP_MII_CFG_MODE_MIIP 0x0
#define GSWIP_MII_CFG_MODE_MIIM 0x1
#define GSWIP_MII_CFG_MODE_RMIIP 0x2
#define GSWIP_MII_CFG_MODE_RMIIM 0x3
#define GSWIP_MII_CFG_MODE_RGMII 0x4
#define GSWIP_MII_CFG_MODE_GMII 0x9
#define GSWIP_MII_CFG_MODE_MASK 0xf
#define GSWIP_MII_CFG_RATE_M2P5 0x00
#define GSWIP_MII_CFG_RATE_M25 0x10
#define GSWIP_MII_CFG_RATE_M125 0x20
#define GSWIP_MII_CFG_RATE_M50 0x30
#define GSWIP_MII_CFG_RATE_AUTO 0x40
#define GSWIP_MII_CFG_RATE_MASK 0x70
#define GSWIP_MII_PCDU0 0x01
#define GSWIP_MII_PCDU1 0x03
#define GSWIP_MII_PCDU5 0x05
#define GSWIP_MII_PCDU_TXDLY_MASK GENMASK(2, 0)
#define GSWIP_MII_PCDU_RXDLY_MASK GENMASK(9, 7)
/* GSWIP Core Registers */
#define GSWIP_SWRES 0x000
#define GSWIP_SWRES_R1 BIT(1) /* GSWIP Software reset */
#define GSWIP_SWRES_R0 BIT(0) /* GSWIP Hardware reset */
#define GSWIP_VERSION 0x013
#define GSWIP_VERSION_REV_SHIFT 0
#define GSWIP_VERSION_REV_MASK GENMASK(7, 0)
#define GSWIP_VERSION_MOD_SHIFT 8
#define GSWIP_VERSION_MOD_MASK GENMASK(15, 8)
#define GSWIP_VERSION_2_0 0x100
#define GSWIP_VERSION_2_1 0x021
#define GSWIP_VERSION_2_2 0x122
#define GSWIP_VERSION_2_2_ETC 0x022
#define GSWIP_BM_RAM_VAL(x) (0x043 - (x))
#define GSWIP_BM_RAM_ADDR 0x044
#define GSWIP_BM_RAM_CTRL 0x045
#define GSWIP_BM_RAM_CTRL_BAS BIT(15)
#define GSWIP_BM_RAM_CTRL_OPMOD BIT(5)
#define GSWIP_BM_RAM_CTRL_ADDR_MASK GENMASK(4, 0)
#define GSWIP_BM_QUEUE_GCTRL 0x04A
#define GSWIP_BM_QUEUE_GCTRL_GL_MOD BIT(10)
/* buffer management Port Configuration Register */
#define GSWIP_BM_PCFGp(p) (0x080 + ((p) * 2))
#define GSWIP_BM_PCFG_CNTEN BIT(0) /* RMON Counter Enable */
#define GSWIP_BM_PCFG_IGCNT BIT(1) /* Ingres Special Tag RMON count */
/* buffer management Port Control Register */
#define GSWIP_BM_RMON_CTRLp(p) (0x81 + ((p) * 2))
#define GSWIP_BM_CTRL_RMON_RAM1_RES BIT(0) /* Software Reset for RMON RAM 1 */
#define GSWIP_BM_CTRL_RMON_RAM2_RES BIT(1) /* Software Reset for RMON RAM 2 */
/* PCE */
#define GSWIP_PCE_TBL_KEY(x) (0x447 - (x))
#define GSWIP_PCE_TBL_MASK 0x448
#define GSWIP_PCE_TBL_VAL(x) (0x44D - (x))
#define GSWIP_PCE_TBL_ADDR 0x44E
#define GSWIP_PCE_TBL_CTRL 0x44F
#define GSWIP_PCE_TBL_CTRL_BAS BIT(15)
#define GSWIP_PCE_TBL_CTRL_TYPE BIT(13)
#define GSWIP_PCE_TBL_CTRL_VLD BIT(12)
#define GSWIP_PCE_TBL_CTRL_KEYFORM BIT(11)
#define GSWIP_PCE_TBL_CTRL_GMAP_MASK GENMASK(10, 7)
#define GSWIP_PCE_TBL_CTRL_OPMOD_MASK GENMASK(6, 5)
#define GSWIP_PCE_TBL_CTRL_OPMOD_ADRD 0x00
#define GSWIP_PCE_TBL_CTRL_OPMOD_ADWR 0x20
#define GSWIP_PCE_TBL_CTRL_OPMOD_KSRD 0x40
#define GSWIP_PCE_TBL_CTRL_OPMOD_KSWR 0x60
#define GSWIP_PCE_TBL_CTRL_ADDR_MASK GENMASK(4, 0)
#define GSWIP_PCE_PMAP1 0x453 /* Monitoring port map */
#define GSWIP_PCE_PMAP2 0x454 /* Default Multicast port map */
#define GSWIP_PCE_PMAP3 0x455 /* Default Unknown Unicast port map */
#define GSWIP_PCE_GCTRL_0 0x456
#define GSWIP_PCE_GCTRL_0_MTFL BIT(0) /* MAC Table Flushing */
#define GSWIP_PCE_GCTRL_0_MC_VALID BIT(3)
#define GSWIP_PCE_GCTRL_0_VLAN BIT(14) /* VLAN aware Switching */
#define GSWIP_PCE_GCTRL_1 0x457
#define GSWIP_PCE_GCTRL_1_MAC_GLOCK BIT(2) /* MAC Address table lock */
#define GSWIP_PCE_GCTRL_1_MAC_GLOCK_MOD BIT(3) /* Mac address table lock forwarding mode */
#define GSWIP_PCE_PCTRL_0p(p) (0x480 + ((p) * 0xA))
#define GSWIP_PCE_PCTRL_0_TVM BIT(5) /* Transparent VLAN mode */
#define GSWIP_PCE_PCTRL_0_VREP BIT(6) /* VLAN Replace Mode */
#define GSWIP_PCE_PCTRL_0_INGRESS BIT(11) /* Accept special tag in ingress */
#define GSWIP_PCE_PCTRL_0_PSTATE_LISTEN 0x0
#define GSWIP_PCE_PCTRL_0_PSTATE_RX 0x1
#define GSWIP_PCE_PCTRL_0_PSTATE_TX 0x2
#define GSWIP_PCE_PCTRL_0_PSTATE_LEARNING 0x3
#define GSWIP_PCE_PCTRL_0_PSTATE_FORWARDING 0x7
#define GSWIP_PCE_PCTRL_0_PSTATE_MASK GENMASK(2, 0)
#define GSWIP_PCE_VCTRL(p) (0x485 + ((p) * 0xA))
#define GSWIP_PCE_VCTRL_UVR BIT(0) /* Unknown VLAN Rule */
#define GSWIP_PCE_VCTRL_VIMR BIT(3) /* VLAN Ingress Member violation rule */
#define GSWIP_PCE_VCTRL_VEMR BIT(4) /* VLAN Egress Member violation rule */
#define GSWIP_PCE_VCTRL_VSR BIT(5) /* VLAN Security */
#define GSWIP_PCE_VCTRL_VID0 BIT(6) /* Priority Tagged Rule */
#define GSWIP_PCE_DEFPVID(p) (0x486 + ((p) * 0xA))
#define GSWIP_MAC_FLEN 0x8C5
#define GSWIP_MAC_CTRL_0p(p) (0x903 + ((p) * 0xC))
#define GSWIP_MAC_CTRL_0_PADEN BIT(8)
#define GSWIP_MAC_CTRL_0_FCS_EN BIT(7)
#define GSWIP_MAC_CTRL_0_FCON_MASK 0x0070
#define GSWIP_MAC_CTRL_0_FCON_AUTO 0x0000
#define GSWIP_MAC_CTRL_0_FCON_RX 0x0010
#define GSWIP_MAC_CTRL_0_FCON_TX 0x0020
#define GSWIP_MAC_CTRL_0_FCON_RXTX 0x0030
#define GSWIP_MAC_CTRL_0_FCON_NONE 0x0040
#define GSWIP_MAC_CTRL_0_FDUP_MASK 0x000C
#define GSWIP_MAC_CTRL_0_FDUP_AUTO 0x0000
#define GSWIP_MAC_CTRL_0_FDUP_EN 0x0004
#define GSWIP_MAC_CTRL_0_FDUP_DIS 0x000C
#define GSWIP_MAC_CTRL_0_GMII_MASK 0x0003
#define GSWIP_MAC_CTRL_0_GMII_AUTO 0x0000
#define GSWIP_MAC_CTRL_0_GMII_MII 0x0001
#define GSWIP_MAC_CTRL_0_GMII_RGMII 0x0002
#define GSWIP_MAC_CTRL_2p(p) (0x905 + ((p) * 0xC))
#define GSWIP_MAC_CTRL_2_LCHKL BIT(2) /* Frame Length Check Long Enable */
#define GSWIP_MAC_CTRL_2_MLEN BIT(3) /* Maximum Untagged Frame Lnegth */
/* Ethernet Switch Fetch DMA Port Control Register */
#define GSWIP_FDMA_PCTRLp(p) (0xA80 + ((p) * 0x6))
#define GSWIP_FDMA_PCTRL_EN BIT(0) /* FDMA Port Enable */
#define GSWIP_FDMA_PCTRL_STEN BIT(1) /* Special Tag Insertion Enable */
#define GSWIP_FDMA_PCTRL_VLANMOD_MASK GENMASK(4, 3) /* VLAN Modification Control */
#define GSWIP_FDMA_PCTRL_VLANMOD_SHIFT 3 /* VLAN Modification Control */
#define GSWIP_FDMA_PCTRL_VLANMOD_DIS (0x0 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
#define GSWIP_FDMA_PCTRL_VLANMOD_PRIO (0x1 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
#define GSWIP_FDMA_PCTRL_VLANMOD_ID (0x2 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
#define GSWIP_FDMA_PCTRL_VLANMOD_BOTH (0x3 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
/* Ethernet Switch Store DMA Port Control Register */
#define GSWIP_SDMA_PCTRLp(p) (0xBC0 + ((p) * 0x6))
#define GSWIP_SDMA_PCTRL_EN BIT(0) /* SDMA Port Enable */
#define GSWIP_SDMA_PCTRL_FCEN BIT(1) /* Flow Control Enable */
#define GSWIP_SDMA_PCTRL_PAUFWD BIT(3) /* Pause Frame Forwarding */
#define GSWIP_TABLE_ACTIVE_VLAN 0x01
#define GSWIP_TABLE_VLAN_MAPPING 0x02
#define GSWIP_TABLE_MAC_BRIDGE 0x0b
#define GSWIP_TABLE_MAC_BRIDGE_KEY3_FID GENMASK(5, 0) /* Filtering identifier */
#define GSWIP_TABLE_MAC_BRIDGE_VAL0_PORT GENMASK(7, 4) /* Port on learned entries */
#define GSWIP_TABLE_MAC_BRIDGE_VAL1_STATIC BIT(0) /* Static, non-aging entry */
#define XRX200_GPHY_FW_ALIGN (16 * 1024)
/* Maximum packet size supported by the switch. In theory this should be 10240,
* but long packets currently cause lock-ups with an MTU of over 2526. Medium
* packets are sometimes dropped (e.g. TCP over 2477, UDP over 2516-2519, ICMP
* over 2526), hence an MTU value of 2400 seems safe. This issue only affects
* packet reception. This is probably caused by the PPA engine, which is on the
* RX part of the device. Packet transmission works properly up to 10240.
*/
#define GSWIP_MAX_PACKET_LENGTH 2400
struct gswip_hw_info {
int max_ports;
int cpu_port;
const struct dsa_switch_ops *ops;
};
struct xway_gphy_match_data {
char *fe_firmware_name;
char *ge_firmware_name;
};
struct gswip_gphy_fw {
struct clk *clk_gate;
struct reset_control *reset;
u32 fw_addr_offset;
char *fw_name;
};
struct gswip_vlan {
struct net_device *bridge;
u16 vid;
u8 fid;
};
struct gswip_priv {
__iomem void *gswip;
__iomem void *mdio;
__iomem void *mii;
const struct gswip_hw_info *hw_info;
const struct xway_gphy_match_data *gphy_fw_name_cfg;
struct dsa_switch *ds;
struct device *dev;
struct regmap *rcu_regmap;
struct gswip_vlan vlans[64];
int num_gphy_fw;
struct gswip_gphy_fw *gphy_fw;
u32 port_vlan_filter;
struct mutex pce_table_lock;
};
struct gswip_pce_table_entry {
u16 index; // PCE_TBL_ADDR.ADDR = pData->table_index
u16 table; // PCE_TBL_CTRL.ADDR = pData->table
@ -426,14 +183,20 @@ static void gswip_mii_mask(struct gswip_priv *priv, u32 clear, u32 set,
static void gswip_mii_mask_cfg(struct gswip_priv *priv, u32 clear, u32 set,
int port)
{
/* There's no MII_CFG register for the CPU port */
if (!dsa_is_cpu_port(priv->ds, port))
gswip_mii_mask(priv, clear, set, GSWIP_MII_CFGp(port));
/* MII_CFG register only exists for MII ports */
if (!(priv->hw_info->mii_ports & BIT(port)))
return;
gswip_mii_mask(priv, clear, set, GSWIP_MII_CFGp(port));
}
static void gswip_mii_mask_pcdu(struct gswip_priv *priv, u32 clear, u32 set,
int port)
{
/* MII_PCDU register only exists for MII ports */
if (!(priv->hw_info->mii_ports & BIT(port)))
return;
switch (port) {
case 0:
gswip_mii_mask(priv, clear, set, GSWIP_MII_PCDU0);
@ -654,7 +417,6 @@ static int gswip_add_single_port_br(struct gswip_priv *priv, int port, bool add)
{
struct gswip_pce_table_entry vlan_active = {0,};
struct gswip_pce_table_entry vlan_mapping = {0,};
unsigned int cpu_port = priv->hw_info->cpu_port;
int err;
vlan_active.index = port + 1;
@ -674,7 +436,7 @@ static int gswip_add_single_port_br(struct gswip_priv *priv, int port, bool add)
vlan_mapping.index = port + 1;
vlan_mapping.table = GSWIP_TABLE_VLAN_MAPPING;
vlan_mapping.val[0] = 0 /* vid */;
vlan_mapping.val[1] = BIT(port) | BIT(cpu_port);
vlan_mapping.val[1] = BIT(port) | dsa_cpu_ports(priv->ds);
vlan_mapping.val[2] = 0;
err = gswip_pce_table_entry_write(priv, &vlan_mapping);
if (err) {
@ -738,15 +500,15 @@ static int gswip_pce_load_microcode(struct gswip_priv *priv)
GSWIP_PCE_TBL_CTRL_OPMOD_ADWR, GSWIP_PCE_TBL_CTRL);
gswip_switch_w(priv, 0, GSWIP_PCE_TBL_MASK);
for (i = 0; i < ARRAY_SIZE(gswip_pce_microcode); i++) {
for (i = 0; i < priv->hw_info->pce_microcode_size; i++) {
gswip_switch_w(priv, i, GSWIP_PCE_TBL_ADDR);
gswip_switch_w(priv, gswip_pce_microcode[i].val_0,
gswip_switch_w(priv, (*priv->hw_info->pce_microcode)[i].val_0,
GSWIP_PCE_TBL_VAL(0));
gswip_switch_w(priv, gswip_pce_microcode[i].val_1,
gswip_switch_w(priv, (*priv->hw_info->pce_microcode)[i].val_1,
GSWIP_PCE_TBL_VAL(1));
gswip_switch_w(priv, gswip_pce_microcode[i].val_2,
gswip_switch_w(priv, (*priv->hw_info->pce_microcode)[i].val_2,
GSWIP_PCE_TBL_VAL(2));
gswip_switch_w(priv, gswip_pce_microcode[i].val_3,
gswip_switch_w(priv, (*priv->hw_info->pce_microcode)[i].val_3,
GSWIP_PCE_TBL_VAL(3));
/* start the table access: */
@ -804,10 +566,10 @@ static int gswip_port_vlan_filtering(struct dsa_switch *ds, int port,
static int gswip_setup(struct dsa_switch *ds)
{
unsigned int cpu_ports = dsa_cpu_ports(ds);
struct gswip_priv *priv = ds->priv;
unsigned int cpu_port = priv->hw_info->cpu_port;
int i;
int err;
struct dsa_port *cpu_dp;
int err, i;
gswip_switch_w(priv, GSWIP_SWRES_R0, GSWIP_SWRES);
usleep_range(5000, 10000);
@ -829,9 +591,9 @@ static int gswip_setup(struct dsa_switch *ds)
}
/* Default unknown Broadcast/Multicast/Unicast port maps */
gswip_switch_w(priv, BIT(cpu_port), GSWIP_PCE_PMAP1);
gswip_switch_w(priv, BIT(cpu_port), GSWIP_PCE_PMAP2);
gswip_switch_w(priv, BIT(cpu_port), GSWIP_PCE_PMAP3);
gswip_switch_w(priv, cpu_ports, GSWIP_PCE_PMAP1);
gswip_switch_w(priv, cpu_ports, GSWIP_PCE_PMAP2);
gswip_switch_w(priv, cpu_ports, GSWIP_PCE_PMAP3);
/* Deactivate MDIO PHY auto polling. Some PHYs as the AR8030 have an
* interoperability problem with this auto polling mechanism because
@ -860,13 +622,15 @@ static int gswip_setup(struct dsa_switch *ds)
GSWIP_MII_CFG_EN | GSWIP_MII_CFG_ISOLATE,
0, i);
/* enable special tag insertion on cpu port */
gswip_switch_mask(priv, 0, GSWIP_FDMA_PCTRL_STEN,
GSWIP_FDMA_PCTRLp(cpu_port));
dsa_switch_for_each_cpu_port(cpu_dp, ds) {
/* enable special tag insertion on cpu port */
gswip_switch_mask(priv, 0, GSWIP_FDMA_PCTRL_STEN,
GSWIP_FDMA_PCTRLp(cpu_dp->index));
/* accept special tag in ingress direction */
gswip_switch_mask(priv, 0, GSWIP_PCE_PCTRL_0_INGRESS,
GSWIP_PCE_PCTRL_0p(cpu_port));
/* accept special tag in ingress direction */
gswip_switch_mask(priv, 0, GSWIP_PCE_PCTRL_0_INGRESS,
GSWIP_PCE_PCTRL_0p(cpu_dp->index));
}
gswip_switch_mask(priv, 0, GSWIP_BM_QUEUE_GCTRL_GL_MOD,
GSWIP_BM_QUEUE_GCTRL);
@ -895,7 +659,9 @@ static enum dsa_tag_protocol gswip_get_tag_protocol(struct dsa_switch *ds,
int port,
enum dsa_tag_protocol mp)
{
return DSA_TAG_PROTO_GSWIP;
struct gswip_priv *priv = ds->priv;
return priv->hw_info->tag_protocol;
}
static int gswip_vlan_active_create(struct gswip_priv *priv,
@ -962,7 +728,6 @@ static int gswip_vlan_add_unaware(struct gswip_priv *priv,
{
struct gswip_pce_table_entry vlan_mapping = {0,};
unsigned int max_ports = priv->hw_info->max_ports;
unsigned int cpu_port = priv->hw_info->cpu_port;
bool active_vlan_created = false;
int idx = -1;
int i;
@ -1002,7 +767,7 @@ static int gswip_vlan_add_unaware(struct gswip_priv *priv,
}
/* Update the VLAN mapping entry and write it to the switch */
vlan_mapping.val[1] |= BIT(cpu_port);
vlan_mapping.val[1] |= dsa_cpu_ports(priv->ds);
vlan_mapping.val[1] |= BIT(port);
err = gswip_pce_table_entry_write(priv, &vlan_mapping);
if (err) {
@ -1024,7 +789,7 @@ static int gswip_vlan_add_aware(struct gswip_priv *priv,
{
struct gswip_pce_table_entry vlan_mapping = {0,};
unsigned int max_ports = priv->hw_info->max_ports;
unsigned int cpu_port = priv->hw_info->cpu_port;
unsigned int cpu_ports = dsa_cpu_ports(priv->ds);
bool active_vlan_created = false;
int idx = -1;
int fid = -1;
@ -1071,8 +836,8 @@ static int gswip_vlan_add_aware(struct gswip_priv *priv,
vlan_mapping.val[0] = vid;
/* Update the VLAN mapping entry and write it to the switch */
vlan_mapping.val[1] |= BIT(cpu_port);
vlan_mapping.val[2] |= BIT(cpu_port);
vlan_mapping.val[1] |= cpu_ports;
vlan_mapping.val[2] |= cpu_ports;
vlan_mapping.val[1] |= BIT(port);
if (untagged)
vlan_mapping.val[2] &= ~BIT(port);
@ -1099,7 +864,6 @@ static int gswip_vlan_remove(struct gswip_priv *priv,
{
struct gswip_pce_table_entry vlan_mapping = {0,};
unsigned int max_ports = priv->hw_info->max_ports;
unsigned int cpu_port = priv->hw_info->cpu_port;
int idx = -1;
int i;
int err;
@ -1135,7 +899,7 @@ static int gswip_vlan_remove(struct gswip_priv *priv,
}
/* In case all ports are removed from the bridge, remove the VLAN */
if ((vlan_mapping.val[1] & ~BIT(cpu_port)) == 0) {
if (!(vlan_mapping.val[1] & ~dsa_cpu_ports(priv->ds))) {
err = gswip_vlan_active_remove(priv, idx);
if (err) {
dev_err(priv->dev, "failed to write active VLAN: %d\n",
@ -1554,6 +1318,14 @@ static void gswip_xrx300_phylink_get_caps(struct dsa_switch *ds, int port,
MAC_10 | MAC_100 | MAC_1000;
}
static void gswip_phylink_get_caps(struct dsa_switch *ds, int port,
struct phylink_config *config)
{
struct gswip_priv *priv = ds->priv;
priv->hw_info->phylink_get_caps(ds, port, config);
}
static void gswip_port_set_link(struct gswip_priv *priv, int port, bool link)
{
u32 mdio_phy;
@ -1826,7 +1598,7 @@ static const struct phylink_mac_ops gswip_phylink_mac_ops = {
.mac_link_up = gswip_phylink_mac_link_up,
};
static const struct dsa_switch_ops gswip_xrx200_switch_ops = {
static const struct dsa_switch_ops gswip_switch_ops = {
.get_tag_protocol = gswip_get_tag_protocol,
.setup = gswip_setup,
.port_enable = gswip_port_enable,
@ -1843,30 +1615,7 @@ static const struct dsa_switch_ops gswip_xrx200_switch_ops = {
.port_fdb_dump = gswip_port_fdb_dump,
.port_change_mtu = gswip_port_change_mtu,
.port_max_mtu = gswip_port_max_mtu,
.phylink_get_caps = gswip_xrx200_phylink_get_caps,
.get_strings = gswip_get_strings,
.get_ethtool_stats = gswip_get_ethtool_stats,
.get_sset_count = gswip_get_sset_count,
};
static const struct dsa_switch_ops gswip_xrx300_switch_ops = {
.get_tag_protocol = gswip_get_tag_protocol,
.setup = gswip_setup,
.port_enable = gswip_port_enable,
.port_disable = gswip_port_disable,
.port_bridge_join = gswip_port_bridge_join,
.port_bridge_leave = gswip_port_bridge_leave,
.port_fast_age = gswip_port_fast_age,
.port_vlan_filtering = gswip_port_vlan_filtering,
.port_vlan_add = gswip_port_vlan_add,
.port_vlan_del = gswip_port_vlan_del,
.port_stp_state_set = gswip_port_stp_state_set,
.port_fdb_add = gswip_port_fdb_add,
.port_fdb_del = gswip_port_fdb_del,
.port_fdb_dump = gswip_port_fdb_dump,
.port_change_mtu = gswip_port_change_mtu,
.port_max_mtu = gswip_port_max_mtu,
.phylink_get_caps = gswip_xrx300_phylink_get_caps,
.phylink_get_caps = gswip_phylink_get_caps,
.get_strings = gswip_get_strings,
.get_ethtool_stats = gswip_get_ethtool_stats,
.get_sset_count = gswip_get_sset_count,
@ -2092,6 +1841,30 @@ static int gswip_gphy_fw_list(struct gswip_priv *priv,
return err;
}
static int gswip_validate_cpu_port(struct dsa_switch *ds)
{
struct gswip_priv *priv = ds->priv;
struct dsa_port *cpu_dp;
int cpu_port = -1;
dsa_switch_for_each_cpu_port(cpu_dp, ds) {
if (cpu_port != -1)
return dev_err_probe(ds->dev, -EINVAL,
"only a single CPU port is supported\n");
cpu_port = cpu_dp->index;
}
if (cpu_port == -1)
return dev_err_probe(ds->dev, -EINVAL, "no CPU port defined\n");
if (BIT(cpu_port) & ~priv->hw_info->allowed_cpu_ports)
return dev_err_probe(ds->dev, -EINVAL,
"unsupported CPU port defined\n");
return 0;
}
static int gswip_probe(struct platform_device *pdev)
{
struct device_node *np, *gphy_fw_np;
@ -2128,12 +1901,22 @@ static int gswip_probe(struct platform_device *pdev)
priv->ds->dev = dev;
priv->ds->num_ports = priv->hw_info->max_ports;
priv->ds->priv = priv;
priv->ds->ops = priv->hw_info->ops;
priv->ds->ops = &gswip_switch_ops;
priv->ds->phylink_mac_ops = &gswip_phylink_mac_ops;
priv->dev = dev;
mutex_init(&priv->pce_table_lock);
version = gswip_switch_r(priv, GSWIP_VERSION);
/* The hardware has the 'major/minor' version bytes in the wrong order
* preventing numerical comparisons. Construct a 16-bit unsigned integer
* having the REV field as most significant byte and the MOD field as
* least significant byte. This is effectively swapping the two bytes of
* the version variable, but other than using swab16 it doesn't affect
* the source variable.
*/
priv->version = GSWIP_VERSION_REV(version) << 8 |
GSWIP_VERSION_MOD(version);
np = dev->of_node;
switch (version) {
case GSWIP_VERSION_2_0:
@ -2174,18 +1957,15 @@ static int gswip_probe(struct platform_device *pdev)
dev_err_probe(dev, err, "dsa switch registration failed\n");
goto gphy_fw_remove;
}
if (!dsa_is_cpu_port(priv->ds, priv->hw_info->cpu_port)) {
err = dev_err_probe(dev, -EINVAL,
"wrong CPU port defined, HW only supports port: %i\n",
priv->hw_info->cpu_port);
err = gswip_validate_cpu_port(priv->ds);
if (err)
goto disable_switch;
}
platform_set_drvdata(pdev, priv);
dev_info(dev, "probed GSWIP version %lx mod %lx\n",
(version & GSWIP_VERSION_REV_MASK) >> GSWIP_VERSION_REV_SHIFT,
(version & GSWIP_VERSION_MOD_MASK) >> GSWIP_VERSION_MOD_SHIFT);
GSWIP_VERSION_REV(version), GSWIP_VERSION_MOD(version));
return 0;
disable_switch:
@ -2228,14 +2008,22 @@ static void gswip_shutdown(struct platform_device *pdev)
static const struct gswip_hw_info gswip_xrx200 = {
.max_ports = 7,
.cpu_port = 6,
.ops = &gswip_xrx200_switch_ops,
.allowed_cpu_ports = BIT(6),
.mii_ports = BIT(0) | BIT(1) | BIT(5),
.phylink_get_caps = gswip_xrx200_phylink_get_caps,
.pce_microcode = &gswip_pce_microcode,
.pce_microcode_size = ARRAY_SIZE(gswip_pce_microcode),
.tag_protocol = DSA_TAG_PROTO_GSWIP,
};
static const struct gswip_hw_info gswip_xrx300 = {
.max_ports = 7,
.cpu_port = 6,
.ops = &gswip_xrx300_switch_ops,
.allowed_cpu_ports = BIT(6),
.mii_ports = BIT(0) | BIT(5),
.phylink_get_caps = gswip_xrx300_phylink_get_caps,
.pce_microcode = &gswip_pce_microcode,
.pce_microcode_size = ARRAY_SIZE(gswip_pce_microcode),
.tag_protocol = DSA_TAG_PROTO_GSWIP,
};
static const struct of_device_id gswip_of_match[] = {

View File

@ -0,0 +1,272 @@
// SPDX-License-Identifier: GPL-2.0
#ifndef __LANTIQ_GSWIP_H
#define __LANTIQ_GSWIP_H
#include <linux/clk.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/swab.h>
#include <net/dsa.h>
/* GSWIP MDIO Registers */
#define GSWIP_MDIO_GLOB 0x00
#define GSWIP_MDIO_GLOB_ENABLE BIT(15)
#define GSWIP_MDIO_CTRL 0x08
#define GSWIP_MDIO_CTRL_BUSY BIT(12)
#define GSWIP_MDIO_CTRL_RD BIT(11)
#define GSWIP_MDIO_CTRL_WR BIT(10)
#define GSWIP_MDIO_CTRL_PHYAD_MASK 0x1f
#define GSWIP_MDIO_CTRL_PHYAD_SHIFT 5
#define GSWIP_MDIO_CTRL_REGAD_MASK 0x1f
#define GSWIP_MDIO_READ 0x09
#define GSWIP_MDIO_WRITE 0x0A
#define GSWIP_MDIO_MDC_CFG0 0x0B
#define GSWIP_MDIO_MDC_CFG1 0x0C
#define GSWIP_MDIO_PHYp(p) (0x15 - (p))
#define GSWIP_MDIO_PHY_LINK_MASK 0x6000
#define GSWIP_MDIO_PHY_LINK_AUTO 0x0000
#define GSWIP_MDIO_PHY_LINK_DOWN 0x4000
#define GSWIP_MDIO_PHY_LINK_UP 0x2000
#define GSWIP_MDIO_PHY_SPEED_MASK 0x1800
#define GSWIP_MDIO_PHY_SPEED_AUTO 0x1800
#define GSWIP_MDIO_PHY_SPEED_M10 0x0000
#define GSWIP_MDIO_PHY_SPEED_M100 0x0800
#define GSWIP_MDIO_PHY_SPEED_G1 0x1000
#define GSWIP_MDIO_PHY_FDUP_MASK 0x0600
#define GSWIP_MDIO_PHY_FDUP_AUTO 0x0000
#define GSWIP_MDIO_PHY_FDUP_EN 0x0200
#define GSWIP_MDIO_PHY_FDUP_DIS 0x0600
#define GSWIP_MDIO_PHY_FCONTX_MASK 0x0180
#define GSWIP_MDIO_PHY_FCONTX_AUTO 0x0000
#define GSWIP_MDIO_PHY_FCONTX_EN 0x0100
#define GSWIP_MDIO_PHY_FCONTX_DIS 0x0180
#define GSWIP_MDIO_PHY_FCONRX_MASK 0x0060
#define GSWIP_MDIO_PHY_FCONRX_AUTO 0x0000
#define GSWIP_MDIO_PHY_FCONRX_EN 0x0020
#define GSWIP_MDIO_PHY_FCONRX_DIS 0x0060
#define GSWIP_MDIO_PHY_ADDR_MASK 0x001f
#define GSWIP_MDIO_PHY_MASK (GSWIP_MDIO_PHY_ADDR_MASK | \
GSWIP_MDIO_PHY_FCONRX_MASK | \
GSWIP_MDIO_PHY_FCONTX_MASK | \
GSWIP_MDIO_PHY_LINK_MASK | \
GSWIP_MDIO_PHY_SPEED_MASK | \
GSWIP_MDIO_PHY_FDUP_MASK)
/* GSWIP MII Registers */
#define GSWIP_MII_CFGp(p) (0x2 * (p))
#define GSWIP_MII_CFG_RESET BIT(15)
#define GSWIP_MII_CFG_EN BIT(14)
#define GSWIP_MII_CFG_ISOLATE BIT(13)
#define GSWIP_MII_CFG_LDCLKDIS BIT(12)
#define GSWIP_MII_CFG_RGMII_IBS BIT(8)
#define GSWIP_MII_CFG_RMII_CLK BIT(7)
#define GSWIP_MII_CFG_MODE_MIIP 0x0
#define GSWIP_MII_CFG_MODE_MIIM 0x1
#define GSWIP_MII_CFG_MODE_RMIIP 0x2
#define GSWIP_MII_CFG_MODE_RMIIM 0x3
#define GSWIP_MII_CFG_MODE_RGMII 0x4
#define GSWIP_MII_CFG_MODE_GMII 0x9
#define GSWIP_MII_CFG_MODE_MASK 0xf
#define GSWIP_MII_CFG_RATE_M2P5 0x00
#define GSWIP_MII_CFG_RATE_M25 0x10
#define GSWIP_MII_CFG_RATE_M125 0x20
#define GSWIP_MII_CFG_RATE_M50 0x30
#define GSWIP_MII_CFG_RATE_AUTO 0x40
#define GSWIP_MII_CFG_RATE_MASK 0x70
#define GSWIP_MII_PCDU0 0x01
#define GSWIP_MII_PCDU1 0x03
#define GSWIP_MII_PCDU5 0x05
#define GSWIP_MII_PCDU_TXDLY_MASK GENMASK(2, 0)
#define GSWIP_MII_PCDU_RXDLY_MASK GENMASK(9, 7)
/* GSWIP Core Registers */
#define GSWIP_SWRES 0x000
#define GSWIP_SWRES_R1 BIT(1) /* GSWIP Software reset */
#define GSWIP_SWRES_R0 BIT(0) /* GSWIP Hardware reset */
#define GSWIP_VERSION 0x013
#define GSWIP_VERSION_REV_MASK GENMASK(7, 0)
#define GSWIP_VERSION_MOD_MASK GENMASK(15, 8)
#define GSWIP_VERSION_REV(v) FIELD_GET(GSWIP_VERSION_REV_MASK, v)
#define GSWIP_VERSION_MOD(v) FIELD_GET(GSWIP_VERSION_MOD_MASK, v)
#define GSWIP_VERSION_2_0 0x100
#define GSWIP_VERSION_2_1 0x021
#define GSWIP_VERSION_2_2 0x122
#define GSWIP_VERSION_2_2_ETC 0x022
/* The hardware has the 'major/minor' version bytes in the wrong order
* preventing numerical comparisons. Swap the bytes of the 16-bit value
* to end up with REV being the most significant byte and MOD being the
* least significant byte, which then allows comparing it with the
* value stored in struct gswip_priv.
*/
#define GSWIP_VERSION_GE(priv, ver) ((priv)->version >= swab16(ver))
#define GSWIP_BM_RAM_VAL(x) (0x043 - (x))
#define GSWIP_BM_RAM_ADDR 0x044
#define GSWIP_BM_RAM_CTRL 0x045
#define GSWIP_BM_RAM_CTRL_BAS BIT(15)
#define GSWIP_BM_RAM_CTRL_OPMOD BIT(5)
#define GSWIP_BM_RAM_CTRL_ADDR_MASK GENMASK(4, 0)
#define GSWIP_BM_QUEUE_GCTRL 0x04A
#define GSWIP_BM_QUEUE_GCTRL_GL_MOD BIT(10)
/* buffer management Port Configuration Register */
#define GSWIP_BM_PCFGp(p) (0x080 + ((p) * 2))
#define GSWIP_BM_PCFG_CNTEN BIT(0) /* RMON Counter Enable */
#define GSWIP_BM_PCFG_IGCNT BIT(1) /* Ingres Special Tag RMON count */
/* buffer management Port Control Register */
#define GSWIP_BM_RMON_CTRLp(p) (0x81 + ((p) * 2))
#define GSWIP_BM_CTRL_RMON_RAM1_RES BIT(0) /* Software Reset for RMON RAM 1 */
#define GSWIP_BM_CTRL_RMON_RAM2_RES BIT(1) /* Software Reset for RMON RAM 2 */
/* PCE */
#define GSWIP_PCE_TBL_KEY(x) (0x447 - (x))
#define GSWIP_PCE_TBL_MASK 0x448
#define GSWIP_PCE_TBL_VAL(x) (0x44D - (x))
#define GSWIP_PCE_TBL_ADDR 0x44E
#define GSWIP_PCE_TBL_CTRL 0x44F
#define GSWIP_PCE_TBL_CTRL_BAS BIT(15)
#define GSWIP_PCE_TBL_CTRL_TYPE BIT(13)
#define GSWIP_PCE_TBL_CTRL_VLD BIT(12)
#define GSWIP_PCE_TBL_CTRL_KEYFORM BIT(11)
#define GSWIP_PCE_TBL_CTRL_GMAP_MASK GENMASK(10, 7)
#define GSWIP_PCE_TBL_CTRL_OPMOD_MASK GENMASK(6, 5)
#define GSWIP_PCE_TBL_CTRL_OPMOD_ADRD 0x00
#define GSWIP_PCE_TBL_CTRL_OPMOD_ADWR 0x20
#define GSWIP_PCE_TBL_CTRL_OPMOD_KSRD 0x40
#define GSWIP_PCE_TBL_CTRL_OPMOD_KSWR 0x60
#define GSWIP_PCE_TBL_CTRL_ADDR_MASK GENMASK(4, 0)
#define GSWIP_PCE_PMAP1 0x453 /* Monitoring port map */
#define GSWIP_PCE_PMAP2 0x454 /* Default Multicast port map */
#define GSWIP_PCE_PMAP3 0x455 /* Default Unknown Unicast port map */
#define GSWIP_PCE_GCTRL_0 0x456
#define GSWIP_PCE_GCTRL_0_MTFL BIT(0) /* MAC Table Flushing */
#define GSWIP_PCE_GCTRL_0_MC_VALID BIT(3)
#define GSWIP_PCE_GCTRL_0_VLAN BIT(14) /* VLAN aware Switching */
#define GSWIP_PCE_GCTRL_1 0x457
#define GSWIP_PCE_GCTRL_1_MAC_GLOCK BIT(2) /* MAC Address table lock */
#define GSWIP_PCE_GCTRL_1_MAC_GLOCK_MOD BIT(3) /* Mac address table lock forwarding mode */
#define GSWIP_PCE_PCTRL_0p(p) (0x480 + ((p) * 0xA))
#define GSWIP_PCE_PCTRL_0_TVM BIT(5) /* Transparent VLAN mode */
#define GSWIP_PCE_PCTRL_0_VREP BIT(6) /* VLAN Replace Mode */
#define GSWIP_PCE_PCTRL_0_INGRESS BIT(11) /* Accept special tag in ingress */
#define GSWIP_PCE_PCTRL_0_PSTATE_LISTEN 0x0
#define GSWIP_PCE_PCTRL_0_PSTATE_RX 0x1
#define GSWIP_PCE_PCTRL_0_PSTATE_TX 0x2
#define GSWIP_PCE_PCTRL_0_PSTATE_LEARNING 0x3
#define GSWIP_PCE_PCTRL_0_PSTATE_FORWARDING 0x7
#define GSWIP_PCE_PCTRL_0_PSTATE_MASK GENMASK(2, 0)
#define GSWIP_PCE_VCTRL(p) (0x485 + ((p) * 0xA))
#define GSWIP_PCE_VCTRL_UVR BIT(0) /* Unknown VLAN Rule */
#define GSWIP_PCE_VCTRL_VIMR BIT(3) /* VLAN Ingress Member violation rule */
#define GSWIP_PCE_VCTRL_VEMR BIT(4) /* VLAN Egress Member violation rule */
#define GSWIP_PCE_VCTRL_VSR BIT(5) /* VLAN Security */
#define GSWIP_PCE_VCTRL_VID0 BIT(6) /* Priority Tagged Rule */
#define GSWIP_PCE_DEFPVID(p) (0x486 + ((p) * 0xA))
#define GSWIP_MAC_FLEN 0x8C5
#define GSWIP_MAC_CTRL_0p(p) (0x903 + ((p) * 0xC))
#define GSWIP_MAC_CTRL_0_PADEN BIT(8)
#define GSWIP_MAC_CTRL_0_FCS_EN BIT(7)
#define GSWIP_MAC_CTRL_0_FCON_MASK 0x0070
#define GSWIP_MAC_CTRL_0_FCON_AUTO 0x0000
#define GSWIP_MAC_CTRL_0_FCON_RX 0x0010
#define GSWIP_MAC_CTRL_0_FCON_TX 0x0020
#define GSWIP_MAC_CTRL_0_FCON_RXTX 0x0030
#define GSWIP_MAC_CTRL_0_FCON_NONE 0x0040
#define GSWIP_MAC_CTRL_0_FDUP_MASK 0x000C
#define GSWIP_MAC_CTRL_0_FDUP_AUTO 0x0000
#define GSWIP_MAC_CTRL_0_FDUP_EN 0x0004
#define GSWIP_MAC_CTRL_0_FDUP_DIS 0x000C
#define GSWIP_MAC_CTRL_0_GMII_MASK 0x0003
#define GSWIP_MAC_CTRL_0_GMII_AUTO 0x0000
#define GSWIP_MAC_CTRL_0_GMII_MII 0x0001
#define GSWIP_MAC_CTRL_0_GMII_RGMII 0x0002
#define GSWIP_MAC_CTRL_2p(p) (0x905 + ((p) * 0xC))
#define GSWIP_MAC_CTRL_2_LCHKL BIT(2) /* Frame Length Check Long Enable */
#define GSWIP_MAC_CTRL_2_MLEN BIT(3) /* Maximum Untagged Frame Lnegth */
/* Ethernet Switch Fetch DMA Port Control Register */
#define GSWIP_FDMA_PCTRLp(p) (0xA80 + ((p) * 0x6))
#define GSWIP_FDMA_PCTRL_EN BIT(0) /* FDMA Port Enable */
#define GSWIP_FDMA_PCTRL_STEN BIT(1) /* Special Tag Insertion Enable */
#define GSWIP_FDMA_PCTRL_VLANMOD_MASK GENMASK(4, 3) /* VLAN Modification Control */
#define GSWIP_FDMA_PCTRL_VLANMOD_SHIFT 3 /* VLAN Modification Control */
#define GSWIP_FDMA_PCTRL_VLANMOD_DIS (0x0 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
#define GSWIP_FDMA_PCTRL_VLANMOD_PRIO (0x1 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
#define GSWIP_FDMA_PCTRL_VLANMOD_ID (0x2 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
#define GSWIP_FDMA_PCTRL_VLANMOD_BOTH (0x3 << GSWIP_FDMA_PCTRL_VLANMOD_SHIFT)
/* Ethernet Switch Store DMA Port Control Register */
#define GSWIP_SDMA_PCTRLp(p) (0xBC0 + ((p) * 0x6))
#define GSWIP_SDMA_PCTRL_EN BIT(0) /* SDMA Port Enable */
#define GSWIP_SDMA_PCTRL_FCEN BIT(1) /* Flow Control Enable */
#define GSWIP_SDMA_PCTRL_PAUFWD BIT(3) /* Pause Frame Forwarding */
#define GSWIP_TABLE_ACTIVE_VLAN 0x01
#define GSWIP_TABLE_VLAN_MAPPING 0x02
#define GSWIP_TABLE_MAC_BRIDGE 0x0b
#define GSWIP_TABLE_MAC_BRIDGE_KEY3_FID GENMASK(5, 0) /* Filtering identifier */
#define GSWIP_TABLE_MAC_BRIDGE_VAL0_PORT GENMASK(7, 4) /* Port on learned entries */
#define GSWIP_TABLE_MAC_BRIDGE_VAL1_STATIC BIT(0) /* Static, non-aging entry */
#define XRX200_GPHY_FW_ALIGN (16 * 1024)
/* Maximum packet size supported by the switch. In theory this should be 10240,
* but long packets currently cause lock-ups with an MTU of over 2526. Medium
* packets are sometimes dropped (e.g. TCP over 2477, UDP over 2516-2519, ICMP
* over 2526), hence an MTU value of 2400 seems safe. This issue only affects
* packet reception. This is probably caused by the PPA engine, which is on the
* RX part of the device. Packet transmission works properly up to 10240.
*/
#define GSWIP_MAX_PACKET_LENGTH 2400
struct gswip_pce_microcode {
u16 val_3;
u16 val_2;
u16 val_1;
u16 val_0;
};
struct gswip_hw_info {
int max_ports;
unsigned int allowed_cpu_ports;
unsigned int mii_ports;
const struct gswip_pce_microcode (*pce_microcode)[];
size_t pce_microcode_size;
enum dsa_tag_protocol tag_protocol;
void (*phylink_get_caps)(struct dsa_switch *ds, int port,
struct phylink_config *config);
};
struct gswip_gphy_fw {
struct clk *clk_gate;
struct reset_control *reset;
u32 fw_addr_offset;
char *fw_name;
};
struct gswip_vlan {
struct net_device *bridge;
u16 vid;
u8 fid;
};
struct gswip_priv {
__iomem void *gswip;
__iomem void *mdio;
__iomem void *mii;
const struct gswip_hw_info *hw_info;
const struct xway_gphy_match_data *gphy_fw_name_cfg;
struct dsa_switch *ds;
struct device *dev;
struct regmap *rcu_regmap;
struct gswip_vlan vlans[64];
int num_gphy_fw;
struct gswip_gphy_fw *gphy_fw;
u32 port_vlan_filter;
struct mutex pce_table_lock;
u16 version;
};
#endif /* __LANTIQ_GSWIP_H */

View File

@ -7,6 +7,8 @@
* Copyright (C) 2017 - 2018 Hauke Mehrtens <hauke@hauke-m.de>
*/
#include "lantiq_gswip.h"
enum {
OUT_MAC0 = 0,
OUT_MAC1,
@ -74,13 +76,6 @@ enum {
FLAG_NO, /*13*/
};
struct gswip_pce_microcode {
u16 val_3;
u16 val_2;
u16 val_1;
u16 val_0;
};
#define MC_ENTRY(val, msk, ns, out, len, type, flags, ipv4_len) \
{ val, msk, ((ns) << 10 | (out) << 4 | (len) >> 1),\
((len) & 1) << 15 | (type) << 13 | (flags) << 9 | (ipv4_len) << 8 }