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path: root/drivers/net/dsa/realtek/rtl8365mb.c
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Diffstat (limited to 'drivers/net/dsa/realtek/rtl8365mb.c')
-rw-r--r--drivers/net/dsa/realtek/rtl8365mb.c299
1 files changed, 177 insertions, 122 deletions
diff --git a/drivers/net/dsa/realtek/rtl8365mb.c b/drivers/net/dsa/realtek/rtl8365mb.c
index 769f672e9128..da31d8b839ac 100644
--- a/drivers/net/dsa/realtek/rtl8365mb.c
+++ b/drivers/net/dsa/realtek/rtl8365mb.c
@@ -101,27 +101,14 @@
#include "realtek.h"
-/* Chip-specific data and limits */
-#define RTL8365MB_CHIP_ID_8365MB_VC 0x6367
-#define RTL8365MB_CHIP_VER_8365MB_VC 0x0040
-
-#define RTL8365MB_CHIP_ID_8367S 0x6367
-#define RTL8365MB_CHIP_VER_8367S 0x00A0
-
-#define RTL8365MB_CHIP_ID_8367RB 0x6367
-#define RTL8365MB_CHIP_VER_8367RB 0x0020
-
/* Family-specific data and limits */
#define RTL8365MB_PHYADDRMAX 7
#define RTL8365MB_NUM_PHYREGS 32
#define RTL8365MB_PHYREGMAX (RTL8365MB_NUM_PHYREGS - 1)
-/* RTL8370MB and RTL8310SR, possibly suportable by this driver, have 10 ports */
-#define RTL8365MB_MAX_NUM_PORTS 10
+#define RTL8365MB_MAX_NUM_PORTS 11
+#define RTL8365MB_MAX_NUM_EXTINTS 3
#define RTL8365MB_LEARN_LIMIT_MAX 2112
-/* valid for all 6-port or less variants */
-static const int rtl8365mb_extint_port_map[] = { -1, -1, -1, -1, -1, -1, 1, 2, -1, -1};
-
/* Chip identification registers */
#define RTL8365MB_CHIP_ID_REG 0x1300
@@ -201,7 +188,7 @@ static const int rtl8365mb_extint_port_map[] = { -1, -1, -1, -1, -1, -1, 1, 2,
/* The PHY OCP addresses of PHY registers 0~31 start here */
#define RTL8365MB_PHY_OCP_ADDR_PHYREG_BASE 0xA400
-/* EXT interface port mode values - used in DIGITAL_INTERFACE_SELECT */
+/* External interface port mode values - used in DIGITAL_INTERFACE_SELECT */
#define RTL8365MB_EXT_PORT_MODE_DISABLE 0
#define RTL8365MB_EXT_PORT_MODE_RGMII 1
#define RTL8365MB_EXT_PORT_MODE_MII_MAC 2
@@ -217,19 +204,7 @@ static const int rtl8365mb_extint_port_map[] = { -1, -1, -1, -1, -1, -1, 1, 2,
#define RTL8365MB_EXT_PORT_MODE_1000X 12
#define RTL8365MB_EXT_PORT_MODE_100FX 13
-/* Realtek docs and driver uses logic number as EXT_PORT0=16, EXT_PORT1=17,
- * EXT_PORT2=18, to interact with switch ports. That logic number is internally
- * converted to either a physical port number (0..9) or an external interface id (0..2),
- * depending on which function was called. The external interface id is calculated as
- * (ext_id=logic_port-15), while the logical to physical map depends on the chip id/version.
- *
- * EXT_PORT0 mentioned in datasheets and rtl8367c driver is used in this driver
- * as extid==1, EXT_PORT2, mentioned in Realtek rtl8367c driver for 10-port switches,
- * would have an ext_id of 3 (out of range for most extint macros) and ext_id 0 does
- * not seem to be used as well for this family.
- */
-
-/* EXT interface mode configuration registers 0~1 */
+/* External interface mode configuration registers 0~1 */
#define RTL8365MB_DIGITAL_INTERFACE_SELECT_REG0 0x1305 /* EXT1 */
#define RTL8365MB_DIGITAL_INTERFACE_SELECT_REG1 0x13C3 /* EXT2 */
#define RTL8365MB_DIGITAL_INTERFACE_SELECT_REG(_extint) \
@@ -241,7 +216,7 @@ static const int rtl8365mb_extint_port_map[] = { -1, -1, -1, -1, -1, -1, 1, 2,
#define RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_OFFSET(_extint) \
(((_extint) % 2) * 4)
-/* EXT interface RGMII TX/RX delay configuration registers 0~2 */
+/* External interface RGMII TX/RX delay configuration registers 0~2 */
#define RTL8365MB_EXT_RGMXF_REG0 0x1306 /* EXT0 */
#define RTL8365MB_EXT_RGMXF_REG1 0x1307 /* EXT1 */
#define RTL8365MB_EXT_RGMXF_REG2 0x13C5 /* EXT2 */
@@ -258,7 +233,7 @@ static const int rtl8365mb_extint_port_map[] = { -1, -1, -1, -1, -1, -1, 1, 2,
#define RTL8365MB_PORT_SPEED_100M 1
#define RTL8365MB_PORT_SPEED_1000M 2
-/* EXT interface force configuration registers 0~2 */
+/* External interface force configuration registers 0~2 */
#define RTL8365MB_DIGITAL_INTERFACE_FORCE_REG0 0x1310 /* EXT0 */
#define RTL8365MB_DIGITAL_INTERFACE_FORCE_REG1 0x1311 /* EXT1 */
#define RTL8365MB_DIGITAL_INTERFACE_FORCE_REG2 0x13C4 /* EXT2 */
@@ -490,6 +465,95 @@ static const struct rtl8365mb_jam_tbl_entry rtl8365mb_init_jam_common[] = {
{ 0x1D32, 0x0002 },
};
+enum rtl8365mb_phy_interface_mode {
+ RTL8365MB_PHY_INTERFACE_MODE_INVAL = 0,
+ RTL8365MB_PHY_INTERFACE_MODE_INTERNAL = BIT(0),
+ RTL8365MB_PHY_INTERFACE_MODE_MII = BIT(1),
+ RTL8365MB_PHY_INTERFACE_MODE_TMII = BIT(2),
+ RTL8365MB_PHY_INTERFACE_MODE_RMII = BIT(3),
+ RTL8365MB_PHY_INTERFACE_MODE_RGMII = BIT(4),
+ RTL8365MB_PHY_INTERFACE_MODE_SGMII = BIT(5),
+ RTL8365MB_PHY_INTERFACE_MODE_HSGMII = BIT(6),
+};
+
+/**
+ * struct rtl8365mb_extint - external interface info
+ * @port: the port with an external interface
+ * @id: the external interface ID, which is either 0, 1, or 2
+ * @supported_interfaces: a bitmask of supported PHY interface modes
+ *
+ * Represents a mapping: port -> { id, supported_interfaces }. To be embedded
+ * in &struct rtl8365mb_chip_info for every port with an external interface.
+ */
+struct rtl8365mb_extint {
+ int port;
+ int id;
+ unsigned int supported_interfaces;
+};
+
+/**
+ * struct rtl8365mb_chip_info - static chip-specific info
+ * @name: human-readable chip name
+ * @chip_id: chip identifier
+ * @chip_ver: chip silicon revision
+ * @extints: available external interfaces
+ * @jam_table: chip-specific initialization jam table
+ * @jam_size: size of the chip's jam table
+ *
+ * These data are specific to a given chip in the family of switches supported
+ * by this driver. When adding support for another chip in the family, a new
+ * chip info should be added to the rtl8365mb_chip_infos array.
+ */
+struct rtl8365mb_chip_info {
+ const char *name;
+ u32 chip_id;
+ u32 chip_ver;
+ const struct rtl8365mb_extint extints[RTL8365MB_MAX_NUM_EXTINTS];
+ const struct rtl8365mb_jam_tbl_entry *jam_table;
+ size_t jam_size;
+};
+
+/* Chip info for each supported switch in the family */
+#define PHY_INTF(_mode) (RTL8365MB_PHY_INTERFACE_MODE_ ## _mode)
+static const struct rtl8365mb_chip_info rtl8365mb_chip_infos[] = {
+ {
+ .name = "RTL8365MB-VC",
+ .chip_id = 0x6367,
+ .chip_ver = 0x0040,
+ .extints = {
+ { 6, 1, PHY_INTF(MII) | PHY_INTF(TMII) |
+ PHY_INTF(RMII) | PHY_INTF(RGMII) },
+ },
+ .jam_table = rtl8365mb_init_jam_8365mb_vc,
+ .jam_size = ARRAY_SIZE(rtl8365mb_init_jam_8365mb_vc),
+ },
+ {
+ .name = "RTL8367S",
+ .chip_id = 0x6367,
+ .chip_ver = 0x00A0,
+ .extints = {
+ { 6, 1, PHY_INTF(SGMII) | PHY_INTF(HSGMII) },
+ { 7, 2, PHY_INTF(MII) | PHY_INTF(TMII) |
+ PHY_INTF(RMII) | PHY_INTF(RGMII) },
+ },
+ .jam_table = rtl8365mb_init_jam_8365mb_vc,
+ .jam_size = ARRAY_SIZE(rtl8365mb_init_jam_8365mb_vc),
+ },
+ {
+ .name = "RTL8367RB-VB",
+ .chip_id = 0x6367,
+ .chip_ver = 0x0020,
+ .extints = {
+ { 6, 1, PHY_INTF(MII) | PHY_INTF(TMII) |
+ PHY_INTF(RMII) | PHY_INTF(RGMII) },
+ { 7, 2, PHY_INTF(MII) | PHY_INTF(TMII) |
+ PHY_INTF(RMII) | PHY_INTF(RGMII) },
+ },
+ .jam_table = rtl8365mb_init_jam_8365mb_vc,
+ .jam_size = ARRAY_SIZE(rtl8365mb_init_jam_8365mb_vc),
+ },
+};
+
enum rtl8365mb_stp_state {
RTL8365MB_STP_STATE_DISABLED = 0,
RTL8365MB_STP_STATE_BLOCKING = 1,
@@ -559,33 +623,23 @@ struct rtl8365mb_port {
};
/**
- * struct rtl8365mb - private chip-specific driver data
+ * struct rtl8365mb - driver private data
* @priv: pointer to parent realtek_priv data
* @irq: registered IRQ or zero
- * @chip_id: chip identifier
- * @chip_ver: chip silicon revision
- * @port_mask: mask of all ports
- * @learn_limit_max: maximum number of L2 addresses the chip can learn
+ * @chip_info: chip-specific info about the attached switch
* @cpu: CPU tagging and CPU port configuration for this chip
* @mib_lock: prevent concurrent reads of MIB counters
* @ports: per-port data
- * @jam_table: chip-specific initialization jam table
- * @jam_size: size of the chip's jam table
*
* Private data for this driver.
*/
struct rtl8365mb {
struct realtek_priv *priv;
int irq;
- u32 chip_id;
- u32 chip_ver;
- u32 port_mask;
- u32 learn_limit_max;
+ const struct rtl8365mb_chip_info *chip_info;
struct rtl8365mb_cpu cpu;
struct mutex mib_lock;
struct rtl8365mb_port ports[RTL8365MB_MAX_NUM_PORTS];
- const struct rtl8365mb_jam_tbl_entry *jam_table;
- size_t jam_size;
};
static int rtl8365mb_phy_poll_busy(struct realtek_priv *priv)
@@ -780,6 +834,26 @@ static int rtl8365mb_dsa_phy_write(struct dsa_switch *ds, int phy, int regnum,
return rtl8365mb_phy_write(ds->priv, phy, regnum, val);
}
+static const struct rtl8365mb_extint *
+rtl8365mb_get_port_extint(struct realtek_priv *priv, int port)
+{
+ struct rtl8365mb *mb = priv->chip_data;
+ int i;
+
+ for (i = 0; i < RTL8365MB_MAX_NUM_EXTINTS; i++) {
+ const struct rtl8365mb_extint *extint =
+ &mb->chip_info->extints[i];
+
+ if (!extint->supported_interfaces)
+ continue;
+
+ if (extint->port == port)
+ return extint;
+ }
+
+ return NULL;
+}
+
static enum dsa_tag_protocol
rtl8365mb_get_tag_protocol(struct dsa_switch *ds, int port,
enum dsa_tag_protocol mp)
@@ -800,20 +874,17 @@ rtl8365mb_get_tag_protocol(struct dsa_switch *ds, int port,
static int rtl8365mb_ext_config_rgmii(struct realtek_priv *priv, int port,
phy_interface_t interface)
{
+ const struct rtl8365mb_extint *extint =
+ rtl8365mb_get_port_extint(priv, port);
struct device_node *dn;
struct dsa_port *dp;
int tx_delay = 0;
int rx_delay = 0;
- int ext_int;
u32 val;
int ret;
- ext_int = rtl8365mb_extint_port_map[port];
-
- if (ext_int <= 0) {
- dev_err(priv->dev, "Port %d is not an external interface port\n", port);
- return -EINVAL;
- }
+ if (!extint)
+ return -ENODEV;
dp = dsa_to_port(priv->ds, port);
dn = dp->dn;
@@ -847,7 +918,7 @@ static int rtl8365mb_ext_config_rgmii(struct realtek_priv *priv, int port,
tx_delay = val / 2;
else
dev_warn(priv->dev,
- "EXT interface TX delay must be 0 or 2 ns\n");
+ "RGMII TX delay must be 0 or 2 ns\n");
}
if (!of_property_read_u32(dn, "rx-internal-delay-ps", &val)) {
@@ -857,11 +928,11 @@ static int rtl8365mb_ext_config_rgmii(struct realtek_priv *priv, int port,
rx_delay = val;
else
dev_warn(priv->dev,
- "EXT interface RX delay must be 0 to 2.1 ns\n");
+ "RGMII RX delay must be 0 to 2.1 ns\n");
}
ret = regmap_update_bits(
- priv->map, RTL8365MB_EXT_RGMXF_REG(ext_int),
+ priv->map, RTL8365MB_EXT_RGMXF_REG(extint->id),
RTL8365MB_EXT_RGMXF_TXDELAY_MASK |
RTL8365MB_EXT_RGMXF_RXDELAY_MASK,
FIELD_PREP(RTL8365MB_EXT_RGMXF_TXDELAY_MASK, tx_delay) |
@@ -870,11 +941,11 @@ static int rtl8365mb_ext_config_rgmii(struct realtek_priv *priv, int port,
return ret;
ret = regmap_update_bits(
- priv->map, RTL8365MB_DIGITAL_INTERFACE_SELECT_REG(ext_int),
- RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_MASK(ext_int),
+ priv->map, RTL8365MB_DIGITAL_INTERFACE_SELECT_REG(extint->id),
+ RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_MASK(extint->id),
RTL8365MB_EXT_PORT_MODE_RGMII
<< RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_OFFSET(
- ext_int));
+ extint->id));
if (ret)
return ret;
@@ -885,21 +956,18 @@ static int rtl8365mb_ext_config_forcemode(struct realtek_priv *priv, int port,
bool link, int speed, int duplex,
bool tx_pause, bool rx_pause)
{
+ const struct rtl8365mb_extint *extint =
+ rtl8365mb_get_port_extint(priv, port);
u32 r_tx_pause;
u32 r_rx_pause;
u32 r_duplex;
u32 r_speed;
u32 r_link;
- int ext_int;
int val;
int ret;
- ext_int = rtl8365mb_extint_port_map[port];
-
- if (ext_int <= 0) {
- dev_err(priv->dev, "Port %d is not an external interface port\n", port);
- return -EINVAL;
- }
+ if (!extint)
+ return -ENODEV;
if (link) {
/* Force the link up with the desired configuration */
@@ -947,7 +1015,7 @@ static int rtl8365mb_ext_config_forcemode(struct realtek_priv *priv, int port,
r_duplex) |
FIELD_PREP(RTL8365MB_DIGITAL_INTERFACE_FORCE_SPEED_MASK, r_speed);
ret = regmap_write(priv->map,
- RTL8365MB_DIGITAL_INTERFACE_FORCE_REG(ext_int),
+ RTL8365MB_DIGITAL_INTERFACE_FORCE_REG(extint->id),
val);
if (ret)
return ret;
@@ -958,7 +1026,13 @@ static int rtl8365mb_ext_config_forcemode(struct realtek_priv *priv, int port,
static void rtl8365mb_phylink_get_caps(struct dsa_switch *ds, int port,
struct phylink_config *config)
{
- if (dsa_is_user_port(ds, port)) {
+ const struct rtl8365mb_extint *extint =
+ rtl8365mb_get_port_extint(ds->priv, port);
+
+ config->mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE |
+ MAC_10 | MAC_100 | MAC_1000FD;
+
+ if (!extint) {
__set_bit(PHY_INTERFACE_MODE_INTERNAL,
config->supported_interfaces);
@@ -967,12 +1041,16 @@ static void rtl8365mb_phylink_get_caps(struct dsa_switch *ds, int port,
*/
__set_bit(PHY_INTERFACE_MODE_GMII,
config->supported_interfaces);
- } else if (dsa_is_cpu_port(ds, port)) {
- phy_interface_set_rgmii(config->supported_interfaces);
+ return;
}
- config->mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE |
- MAC_10 | MAC_100 | MAC_1000FD;
+ /* Populate according to the modes supported by _this driver_,
+ * not necessarily the modes supported by the hardware, some of
+ * which remain unimplemented.
+ */
+
+ if (extint->supported_interfaces & RTL8365MB_PHY_INTERFACE_MODE_RGMII)
+ phy_interface_set_rgmii(config->supported_interfaces);
}
static void rtl8365mb_phylink_mac_config(struct dsa_switch *ds, int port,
@@ -1091,15 +1169,13 @@ static void rtl8365mb_port_stp_state_set(struct dsa_switch *ds, int port,
static int rtl8365mb_port_set_learning(struct realtek_priv *priv, int port,
bool enable)
{
- struct rtl8365mb *mb = priv->chip_data;
-
/* Enable/disable learning by limiting the number of L2 addresses the
* port can learn. Realtek documentation states that a limit of zero
* disables learning. When enabling learning, set it to the chip's
* maximum.
*/
return regmap_write(priv->map, RTL8365MB_LUT_PORT_LEARN_LIMIT_REG(port),
- enable ? mb->learn_limit_max : 0);
+ enable ? RTL8365MB_LEARN_LIMIT_MAX : 0);
}
static int rtl8365mb_port_set_isolation(struct realtek_priv *priv, int port,
@@ -1489,13 +1565,10 @@ static irqreturn_t rtl8365mb_irq(int irq, void *data)
{
struct realtek_priv *priv = data;
unsigned long line_changes = 0;
- struct rtl8365mb *mb;
u32 stat;
int line;
int ret;
- mb = priv->chip_data;
-
ret = rtl8365mb_get_and_clear_status_reg(priv, RTL8365MB_INTR_STATUS_REG,
&stat);
if (ret)
@@ -1520,7 +1593,7 @@ static irqreturn_t rtl8365mb_irq(int irq, void *data)
linkdown_ind = FIELD_GET(RTL8365MB_PORT_LINKDOWN_IND_MASK, val);
- line_changes = (linkup_ind | linkdown_ind) & mb->port_mask;
+ line_changes = linkup_ind | linkdown_ind;
}
if (!line_changes)
@@ -1792,14 +1865,17 @@ static int rtl8365mb_change_tag_protocol(struct dsa_switch *ds,
static int rtl8365mb_switch_init(struct realtek_priv *priv)
{
struct rtl8365mb *mb = priv->chip_data;
+ const struct rtl8365mb_chip_info *ci;
int ret;
int i;
+ ci = mb->chip_info;
+
/* Do any chip-specific init jam before getting to the common stuff */
- if (mb->jam_table) {
- for (i = 0; i < mb->jam_size; i++) {
- ret = regmap_write(priv->map, mb->jam_table[i].reg,
- mb->jam_table[i].val);
+ if (ci->jam_table) {
+ for (i = 0; i < ci->jam_size; i++) {
+ ret = regmap_write(priv->map, ci->jam_table[i].reg,
+ ci->jam_table[i].val);
if (ret)
return ret;
}
@@ -1972,6 +2048,7 @@ static int rtl8365mb_detect(struct realtek_priv *priv)
u32 chip_id;
u32 chip_ver;
int ret;
+ int i;
ret = rtl8365mb_get_chip_id_and_ver(priv->map, &chip_id, &chip_ver);
if (ret) {
@@ -1980,54 +2057,32 @@ static int rtl8365mb_detect(struct realtek_priv *priv)
return ret;
}
- switch (chip_id) {
- case RTL8365MB_CHIP_ID_8365MB_VC:
- switch (chip_ver) {
- case RTL8365MB_CHIP_VER_8365MB_VC:
- dev_info(priv->dev,
- "found an RTL8365MB-VC switch (ver=0x%04x)\n",
- chip_ver);
- break;
- case RTL8365MB_CHIP_VER_8367RB:
- dev_info(priv->dev,
- "found an RTL8367RB-VB switch (ver=0x%04x)\n",
- chip_ver);
- break;
- case RTL8365MB_CHIP_VER_8367S:
- dev_info(priv->dev,
- "found an RTL8367S switch (ver=0x%04x)\n",
- chip_ver);
+ for (i = 0; i < ARRAY_SIZE(rtl8365mb_chip_infos); i++) {
+ const struct rtl8365mb_chip_info *ci = &rtl8365mb_chip_infos[i];
+
+ if (ci->chip_id == chip_id && ci->chip_ver == chip_ver) {
+ mb->chip_info = ci;
break;
- default:
- dev_err(priv->dev, "unrecognized switch version (ver=0x%04x)",
- chip_ver);
- return -ENODEV;
}
+ }
- priv->num_ports = RTL8365MB_MAX_NUM_PORTS;
-
- mb->priv = priv;
- mb->chip_id = chip_id;
- mb->chip_ver = chip_ver;
- mb->port_mask = GENMASK(priv->num_ports - 1, 0);
- mb->learn_limit_max = RTL8365MB_LEARN_LIMIT_MAX;
- mb->jam_table = rtl8365mb_init_jam_8365mb_vc;
- mb->jam_size = ARRAY_SIZE(rtl8365mb_init_jam_8365mb_vc);
-
- mb->cpu.trap_port = RTL8365MB_MAX_NUM_PORTS;
- mb->cpu.insert = RTL8365MB_CPU_INSERT_TO_ALL;
- mb->cpu.position = RTL8365MB_CPU_POS_AFTER_SA;
- mb->cpu.rx_length = RTL8365MB_CPU_RXLEN_64BYTES;
- mb->cpu.format = RTL8365MB_CPU_FORMAT_8BYTES;
-
- break;
- default:
+ if (!mb->chip_info) {
dev_err(priv->dev,
- "found an unknown Realtek switch (id=0x%04x, ver=0x%04x)\n",
- chip_id, chip_ver);
+ "unrecognized switch (id=0x%04x, ver=0x%04x)", chip_id,
+ chip_ver);
return -ENODEV;
}
+ dev_info(priv->dev, "found an %s switch\n", mb->chip_info->name);
+
+ priv->num_ports = RTL8365MB_MAX_NUM_PORTS;
+ mb->priv = priv;
+ mb->cpu.trap_port = RTL8365MB_MAX_NUM_PORTS;
+ mb->cpu.insert = RTL8365MB_CPU_INSERT_TO_ALL;
+ mb->cpu.position = RTL8365MB_CPU_POS_AFTER_SA;
+ mb->cpu.rx_length = RTL8365MB_CPU_RXLEN_64BYTES;
+ mb->cpu.format = RTL8365MB_CPU_FORMAT_8BYTES;
+
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.