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-rw-r--r--drivers/net/dsa/microchip/ksz8795_spi.c35
-rw-r--r--drivers/net/dsa/microchip/ksz8863_smi.c10
-rw-r--r--drivers/net/dsa/microchip/ksz9477_i2c.c30
-rw-r--r--drivers/net/dsa/microchip/ksz9477_spi.c30
-rw-r--r--drivers/net/dsa/microchip/ksz_common.c25
-rw-r--r--drivers/net/dsa/microchip/ksz_common.h1
6 files changed, 109 insertions, 22 deletions
diff --git a/drivers/net/dsa/microchip/ksz8795_spi.c b/drivers/net/dsa/microchip/ksz8795_spi.c
index 5f8d94aee774..961a74c359a8 100644
--- a/drivers/net/dsa/microchip/ksz8795_spi.c
+++ b/drivers/net/dsa/microchip/ksz8795_spi.c
@@ -34,6 +34,7 @@ KSZ_REGMAP_TABLE(ksz8863, 16, KSZ8863_SPI_ADDR_SHIFT,
static int ksz8795_spi_probe(struct spi_device *spi)
{
const struct regmap_config *regmap_config;
+ const struct ksz_chip_data *chip;
struct device *ddev = &spi->dev;
struct regmap_config rc;
struct ksz_device *dev;
@@ -50,10 +51,15 @@ static int ksz8795_spi_probe(struct spi_device *spi)
if (!dev)
return -ENOMEM;
- regmap_config = device_get_match_data(ddev);
- if (!regmap_config)
+ chip = device_get_match_data(ddev);
+ if (!chip)
return -EINVAL;
+ if (chip->chip_id == KSZ8830_CHIP_ID)
+ regmap_config = ksz8863_regmap_config;
+ else
+ regmap_config = ksz8795_regmap_config;
+
for (i = 0; i < ARRAY_SIZE(ksz8795_regmap_config); i++) {
rc = regmap_config[i];
rc.lock_arg = &dev->regmap_mutex;
@@ -113,11 +119,26 @@ static void ksz8795_spi_shutdown(struct spi_device *spi)
}
static const struct of_device_id ksz8795_dt_ids[] = {
- { .compatible = "microchip,ksz8765", .data = &ksz8795_regmap_config },
- { .compatible = "microchip,ksz8794", .data = &ksz8795_regmap_config },
- { .compatible = "microchip,ksz8795", .data = &ksz8795_regmap_config },
- { .compatible = "microchip,ksz8863", .data = &ksz8863_regmap_config },
- { .compatible = "microchip,ksz8873", .data = &ksz8863_regmap_config },
+ {
+ .compatible = "microchip,ksz8765",
+ .data = &ksz_switch_chips[KSZ8765]
+ },
+ {
+ .compatible = "microchip,ksz8794",
+ .data = &ksz_switch_chips[KSZ8794]
+ },
+ {
+ .compatible = "microchip,ksz8795",
+ .data = &ksz_switch_chips[KSZ8795]
+ },
+ {
+ .compatible = "microchip,ksz8863",
+ .data = &ksz_switch_chips[KSZ8830]
+ },
+ {
+ .compatible = "microchip,ksz8873",
+ .data = &ksz_switch_chips[KSZ8830]
+ },
{},
};
MODULE_DEVICE_TABLE(of, ksz8795_dt_ids);
diff --git a/drivers/net/dsa/microchip/ksz8863_smi.c b/drivers/net/dsa/microchip/ksz8863_smi.c
index 5883fa7edda2..b6f99e641dca 100644
--- a/drivers/net/dsa/microchip/ksz8863_smi.c
+++ b/drivers/net/dsa/microchip/ksz8863_smi.c
@@ -206,8 +206,14 @@ static void ksz8863_smi_shutdown(struct mdio_device *mdiodev)
}
static const struct of_device_id ksz8863_dt_ids[] = {
- { .compatible = "microchip,ksz8863" },
- { .compatible = "microchip,ksz8873" },
+ {
+ .compatible = "microchip,ksz8863",
+ .data = &ksz_switch_chips[KSZ8830]
+ },
+ {
+ .compatible = "microchip,ksz8873",
+ .data = &ksz_switch_chips[KSZ8830]
+ },
{ },
};
MODULE_DEVICE_TABLE(of, ksz8863_dt_ids);
diff --git a/drivers/net/dsa/microchip/ksz9477_i2c.c b/drivers/net/dsa/microchip/ksz9477_i2c.c
index cbc0b20e7e1b..faa3163c86b0 100644
--- a/drivers/net/dsa/microchip/ksz9477_i2c.c
+++ b/drivers/net/dsa/microchip/ksz9477_i2c.c
@@ -87,12 +87,30 @@ static const struct i2c_device_id ksz9477_i2c_id[] = {
MODULE_DEVICE_TABLE(i2c, ksz9477_i2c_id);
static const struct of_device_id ksz9477_dt_ids[] = {
- { .compatible = "microchip,ksz9477" },
- { .compatible = "microchip,ksz9897" },
- { .compatible = "microchip,ksz9893" },
- { .compatible = "microchip,ksz9563" },
- { .compatible = "microchip,ksz9567" },
- { .compatible = "microchip,ksz8563" },
+ {
+ .compatible = "microchip,ksz9477",
+ .data = &ksz_switch_chips[KSZ9477]
+ },
+ {
+ .compatible = "microchip,ksz9897",
+ .data = &ksz_switch_chips[KSZ9897]
+ },
+ {
+ .compatible = "microchip,ksz9893",
+ .data = &ksz_switch_chips[KSZ9893]
+ },
+ {
+ .compatible = "microchip,ksz9563",
+ .data = &ksz_switch_chips[KSZ9893]
+ },
+ {
+ .compatible = "microchip,ksz8563",
+ .data = &ksz_switch_chips[KSZ9893]
+ },
+ {
+ .compatible = "microchip,ksz9567",
+ .data = &ksz_switch_chips[KSZ9567]
+ },
{},
};
MODULE_DEVICE_TABLE(of, ksz9477_dt_ids);
diff --git a/drivers/net/dsa/microchip/ksz9477_spi.c b/drivers/net/dsa/microchip/ksz9477_spi.c
index 87ca464dad32..1bc8b0cbe458 100644
--- a/drivers/net/dsa/microchip/ksz9477_spi.c
+++ b/drivers/net/dsa/microchip/ksz9477_spi.c
@@ -86,12 +86,30 @@ static void ksz9477_spi_shutdown(struct spi_device *spi)
}
static const struct of_device_id ksz9477_dt_ids[] = {
- { .compatible = "microchip,ksz9477" },
- { .compatible = "microchip,ksz9897" },
- { .compatible = "microchip,ksz9893" },
- { .compatible = "microchip,ksz9563" },
- { .compatible = "microchip,ksz8563" },
- { .compatible = "microchip,ksz9567" },
+ {
+ .compatible = "microchip,ksz9477",
+ .data = &ksz_switch_chips[KSZ9477]
+ },
+ {
+ .compatible = "microchip,ksz9897",
+ .data = &ksz_switch_chips[KSZ9897]
+ },
+ {
+ .compatible = "microchip,ksz9893",
+ .data = &ksz_switch_chips[KSZ9893]
+ },
+ {
+ .compatible = "microchip,ksz9563",
+ .data = &ksz_switch_chips[KSZ9893]
+ },
+ {
+ .compatible = "microchip,ksz8563",
+ .data = &ksz_switch_chips[KSZ9893]
+ },
+ {
+ .compatible = "microchip,ksz9567",
+ .data = &ksz_switch_chips[KSZ9567]
+ },
{},
};
MODULE_DEVICE_TABLE(of, ksz9477_dt_ids);
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index ebb4753051d4..09048e5e7ff2 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -14,6 +14,7 @@
#include <linux/phy.h>
#include <linux/etherdevice.h>
#include <linux/if_bridge.h>
+#include <linux/of_device.h>
#include <linux/of_net.h>
#include <net/dsa.h>
#include <net/switchdev.h>
@@ -59,7 +60,7 @@ struct ksz_stats_raw {
u64 tx_discards;
};
-static const struct ksz_chip_data ksz_switch_chips[] = {
+const struct ksz_chip_data ksz_switch_chips[] = {
[KSZ8795] = {
.chip_id = KSZ8795_CHIP_ID,
.dev_name = "KSZ8795",
@@ -210,6 +211,7 @@ static const struct ksz_chip_data ksz_switch_chips[] = {
.port_cnt = 8, /* total physical port count */
},
};
+EXPORT_SYMBOL_GPL(ksz_switch_chips);
static const struct ksz_chip_data *ksz_lookup_info(unsigned int prod_num)
{
@@ -225,6 +227,23 @@ static const struct ksz_chip_data *ksz_lookup_info(unsigned int prod_num)
return NULL;
}
+static int ksz_check_device_id(struct ksz_device *dev)
+{
+ const struct ksz_chip_data *dt_chip_data;
+
+ dt_chip_data = of_device_get_match_data(dev->dev);
+
+ /* Check for Device Tree and Chip ID */
+ if (dt_chip_data->chip_id != dev->chip_id) {
+ dev_err(dev->dev,
+ "Device tree specifies chip %s but found %s, please fix it!\n",
+ dt_chip_data->dev_name, dev->info->dev_name);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
void ksz_r_mib_stats64(struct ksz_device *dev, int port)
{
struct rtnl_link_stats64 *stats;
@@ -741,6 +760,10 @@ int ksz_switch_register(struct ksz_device *dev,
/* Update the compatible info with the probed one */
dev->info = info;
+ ret = ksz_check_device_id(dev);
+ if (ret)
+ return ret;
+
ret = dev->dev_ops->init(dev);
if (ret)
return ret;
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index a8f73e9a63ac..b526f8027eea 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -193,6 +193,7 @@ void ksz_init_mib_timer(struct ksz_device *dev);
void ksz_r_mib_stats64(struct ksz_device *dev, int port);
void ksz_get_stats64(struct dsa_switch *ds, int port,
struct rtnl_link_stats64 *s);
+extern const struct ksz_chip_data ksz_switch_chips[];
/* Common DSA access functions */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.