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realtek: dsa: remove half-cooked SoC version determination

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There are some code pieces that determine the SoC version of the
running system. For RTL83xx it reads out the registers, for RTL93xx
it simply uses a constant value. Without any consumer of this data
drop it.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21684
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Markus Stockhausen 2026-01-24 22:17:13 +01:00 • committed by Robert Marko
parent 5ebb93158e
commit 5dbfbe59bb
5 changed files with 0 additions and 58 deletions
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11
target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/common.c
View file

@ -1419,7 +1419,6 @@ static int rtl83xx_sw_probe(struct platform_device *pdev)
priv->r = &rtl838x_reg;
priv->ds->num_ports = 29;
priv->fib_entries = 8192;
rtl8380_get_version(priv);
priv->ds->num_lag_ids = 8;
priv->l2_bucket_size = 4;
priv->n_mst = 64;
@ -1436,7 +1435,6 @@ static int rtl83xx_sw_probe(struct platform_device *pdev)
priv->r = &rtl839x_reg;
priv->ds->num_ports = 53;
priv->fib_entries = 16384;
rtl8390_get_version(priv);
priv->ds->num_lag_ids = 16;
priv->l2_bucket_size = 4;
priv->n_mst = 256;
@ -1453,10 +1451,6 @@ static int rtl83xx_sw_probe(struct platform_device *pdev)
priv->r = &rtl930x_reg;
priv->ds->num_ports = 29;
priv->fib_entries = 16384;
/* TODO A version based on CHIP_INFO and MODEL_NAME_INFO should
* be constructed. For now, just set it to a static 'A'
*/
priv->version = RTL8390_VERSION_A;
priv->ds->num_lag_ids = 16;
sw_w32(0, RTL930X_ST_CTRL);
priv->l2_bucket_size = 8;
@ -1474,10 +1468,6 @@ static int rtl83xx_sw_probe(struct platform_device *pdev)
priv->r = &rtl931x_reg;
priv->ds->num_ports = 57;
priv->fib_entries = 16384;
/* TODO A version based on CHIP_INFO and MODEL_NAME_INFO should
* be constructed. For now, just set it to a static 'A'
*/
priv->version = RTL8390_VERSION_A;
priv->ds->num_lag_ids = 16;
sw_w32(0, RTL931x_ST_CTRL);
priv->l2_bucket_size = 8;
@ -1487,7 +1477,6 @@ static int rtl83xx_sw_probe(struct platform_device *pdev)
priv->n_counters = 2048;
break;
}
pr_debug("Chip version %c\n", priv->version);
err = rtl83xx_mdio_probe(priv);
if (err) {

27
target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/rtl838x.c
View file

@ -1775,33 +1775,6 @@ irqreturn_t rtl838x_switch_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
void rtl8380_get_version(struct rtl838x_switch_priv *priv)
{
u32 rw_save, info_save;
u32 info;
rw_save = sw_r32(RTL838X_INT_RW_CTRL);
sw_w32(rw_save | 0x3, RTL838X_INT_RW_CTRL);
info_save = sw_r32(RTL838X_CHIP_INFO);
sw_w32(info_save | 0xA0000000, RTL838X_CHIP_INFO);
info = sw_r32(RTL838X_CHIP_INFO);
sw_w32(info_save, RTL838X_CHIP_INFO);
sw_w32(rw_save, RTL838X_INT_RW_CTRL);
if ((info & 0xFFFF) == 0x6275) {
if (((info >> 16) & 0x1F) == 0x1)
priv->version = RTL8380_VERSION_A;
else if (((info >> 16) & 0x1F) == 0x2)
priv->version = RTL8380_VERSION_B;
else
priv->version = RTL8380_VERSION_B;
} else {
priv->version = '-';
}
}
void rtl838x_vlan_profile_dump(int profile)
{
u32 p;

1
target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/rtl838x.h
View file

@ -1285,7 +1285,6 @@ struct rtl838x_switch_priv {
struct device *dev;
u16 id;
u16 family_id;
char version;
struct rtl838x_port ports[57];
struct phylink_pcs *pcs[57];
struct mutex reg_mutex; /* Mutex for individual register manipulations */

13
target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/rtl839x.c
View file

@ -624,19 +624,6 @@ irqreturn_t rtl839x_switch_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
void rtl8390_get_version(struct rtl838x_switch_priv *priv)
{
u32 info, model;
sw_w32_mask(0xf << 28, 0xa << 28, RTL839X_CHIP_INFO);
info = sw_r32(RTL839X_CHIP_INFO);
model = sw_r32(RTL839X_MODEL_NAME_INFO);
priv->version = RTL8390_VERSION_A + ((model & 0x3f) >> 1);
pr_debug("RTL839X Chip-Info: %x, version %c\n", info, priv->version);
}
void rtl839x_vlan_profile_dump(int profile)
{
u32 p[2];

6
target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/rtl83xx.h
View file

@ -6,10 +6,6 @@
#include <net/dsa.h>
#include "rtl838x.h"
#define RTL8380_VERSION_A 'A'
#define RTL8390_VERSION_A 'A'
#define RTL8380_VERSION_B 'B'
struct fdb_update_work {
struct work_struct work;
struct net_device *ndev;
@ -161,14 +157,12 @@ int rtl838x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate
/* RTL838x-specific */
u32 rtl838x_hash(struct rtl838x_switch_priv *priv, u64 seed);
irqreturn_t rtl838x_switch_irq(int irq, void *dev_id);
void rtl8380_get_version(struct rtl838x_switch_priv *priv);
void rtl838x_vlan_profile_dump(int index);
void rtl838x_print_matrix(void);
/* RTL839x-specific */
u32 rtl839x_hash(struct rtl838x_switch_priv *priv, u64 seed);
irqreturn_t rtl839x_switch_irq(int irq, void *dev_id);
void rtl8390_get_version(struct rtl838x_switch_priv *priv);
void rtl839x_vlan_profile_dump(int index);
void rtl839x_exec_tbl2_cmd(u32 cmd);
void rtl839x_print_matrix(void);