[PATCH net-next v3 3/6] net: phy: microchip_t1s: update LAN867x PHY supported revision number

Parthiban Veerasooran
2023-05-24T14:45:05Z

As per AN1699, the initial configuration in the driver applies to LAN867x
Rev.B1 hardware revision. 0x0007C160 (Rev.A0) and 0x0007C161 (Rev.B0)
never released to production and hence they don't need to be supported.

Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com>
---
drivers/net/phy/microchip_t1s.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/net/phy/microchip_t1s.c b/drivers/net/phy/microchip_t1s.c
index b5b5a95fa6e7..8f29d9802131 100644
--- a/drivers/net/phy/microchip_t1s.c
+++ b/drivers/net/phy/microchip_t1s.c
@@ -3,14 +3,14 @@
* Driver for Microchip 10BASE-T1S PHYs
*
* Support: Microchip Phys:
- * lan8670, lan8671, lan8672
+ * lan8670/1/2 Rev.B1
*/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/phy.h>

-#define PHY_ID_LAN867X 0x0007C160
+#define PHY_ID_LAN867X_REVB1 0x0007C162

#define LAN867X_REG_IRQ_1_CTL 0x001C
#define LAN867X_REG_IRQ_2_CTL 0x001D
@@ -31,25 +31,25 @@
* W 0x1F 0x0099 0x7F80 ------
*/

-static const u32 lan867x_fixup_registers[12] = {
+static const u32 lan867x_revb1_fixup_registers[12] = {
0x00D0, 0x00D1, 0x0084, 0x0085,
0x008A, 0x0087, 0x0088, 0x008B,
0x0080, 0x00F1, 0x0096, 0x0099,
};

-static const u16 lan867x_fixup_values[12] = {
+static const u16 lan867x_revb1_fixup_values[12] = {
0x0002, 0x0000, 0x3380, 0x0006,
0xC000, 0x801C, 0x033F, 0x0404,
0x0600, 0x2400, 0x2000, 0x7F80,
};

-static const u16 lan867x_fixup_masks[12] = {
+static const u16 lan867x_revb1_fixup_masks[12] = {
0x0E03, 0x0300, 0xFFC0, 0x000F,
0xF800, 0x801C, 0x1FFF, 0xFFFF,
0x0600, 0x7F00, 0x2000, 0xFFFF,
};

-static int lan867x_config_init(struct phy_device *phydev)
+static int lan867x_revb1_config_init(struct phy_device *phydev)
{
/* HW quirk: Microchip states in the application note (AN1699) for the phy
* that a set of read-modify-write (rmw) operations has to be performed
@@ -73,11 +73,11 @@ static int lan867x_config_init(struct phy_device *phydev)
* Although AN1699 says Read, Modify, Write, the write is not required if
* the register already has the required value.
*/
- for (int i = 0; i < ARRAY_SIZE(lan867x_fixup_registers); i++) {
+ for (int i = 0; i < ARRAY_SIZE(lan867x_revb1_fixup_registers); i++) {
err = phy_modify_mmd(phydev, MDIO_MMD_VEND2,
- lan867x_fixup_registers[i],
- lan867x_fixup_masks[i],
- lan867x_fixup_values[i]);
+ lan867x_revb1_fixup_registers[i],
+ lan867x_revb1_fixup_masks[i],
+ lan867x_revb1_fixup_values[i]);
if (err)
return err;
}
@@ -112,10 +112,10 @@ static int lan867x_read_status(struct phy_device *phydev)

static struct phy_driver microchip_t1s_driver[] = {
{
- PHY_ID_MATCH_MODEL(PHY_ID_LAN867X),
- .name = "LAN867X",
+ PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVB1),
+ .name = "LAN867X Rev.B1",
.features = PHY_BASIC_T1S_P2MP_FEATURES,
- .config_init = lan867x_config_init,
+ .config_init = lan867x_revb1_config_init,
.read_status = lan867x_read_status,
.get_plca_cfg = genphy_c45_plca_get_cfg,
.set_plca_cfg = genphy_c45_plca_set_cfg,
@@ -126,7 +126,7 @@ static struct phy_driver microchip_t1s_driver[] = {
module_phy_driver(microchip_t1s_driver);

static struct mdio_device_id __maybe_unused tbl[] = {
- { PHY_ID_MATCH_MODEL(PHY_ID_LAN867X) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVB1) },
{ }
};

--
2.34.1