mlxsw: reg: Add Port Module Memory Map Properties register

idosch · kuba-moo · commit f10ba086f7e3 · 2021-10-06T17:47:49.000-07:00
Add the Port Module Memory Map Properties register. It will be used to
set the power mode of a module in subsequent patches.

Signed-off-by: Ido Schimmel &lt;idosch@nvidia.com&gt;
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5946,6 +5946,55 @@ static inline void mlxsw_reg_pddr_pack(char *payload, u8 local_port,
 	mlxsw_reg_pddr_page_select_set(payload, page_select);
 }
 
+/* PMMP - Port Module Memory Map Properties Register
+ * -------------------------------------------------
+ * The PMMP register allows to override the module memory map advertisement.
+ * The register can only be set when the module is disabled by PMAOS register.
+ */
+#define MLXSW_REG_PMMP_ID 0x5044
+#define MLXSW_REG_PMMP_LEN 0x2C
+
+MLXSW_REG_DEFINE(pmmp, MLXSW_REG_PMMP_ID, MLXSW_REG_PMMP_LEN);
+
+/* reg_pmmp_module
+ * Module number.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, pmmp, module, 0x00, 16, 8);
+
+/* reg_pmmp_sticky
+ * When set, will keep eeprom_override values after plug-out event.
+ * Access: OP
+ */
+MLXSW_ITEM32(reg, pmmp, sticky, 0x00, 0, 1);
+
+/* reg_pmmp_eeprom_override_mask
+ * Write mask bit (negative polarity).
+ * 0 - Allow write
+ * 1 - Ignore write
+ * On write, indicates which of the bits from eeprom_override field are
+ * updated.
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, pmmp, eeprom_override_mask, 0x04, 16, 16);
+
+enum {
+	/* Set module to low power mode */
+	MLXSW_REG_PMMP_EEPROM_OVERRIDE_LOW_POWER_MASK = BIT(8),
+};
+
+/* reg_pmmp_eeprom_override
+ * Override / ignore EEPROM advertisement properties bitmask
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pmmp, eeprom_override, 0x04, 0, 16);
+
+static inline void mlxsw_reg_pmmp_pack(char *payload, u8 module)
+{
+	MLXSW_REG_ZERO(pmmp, payload);
+	mlxsw_reg_pmmp_module_set(payload, module);
+}
+
 /* PLLP - Port Local port to Label Port mapping Register
  * -----------------------------------------------------
  * The PLLP register returns the mapping from Local Port into Label Port.
@@ -12348,6 +12397,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(pmtdb),
 	MLXSW_REG(pmpe),
 	MLXSW_REG(pddr),
+	MLXSW_REG(pmmp),
 	MLXSW_REG(pllp),
 	MLXSW_REG(htgt),
 	MLXSW_REG(hpkt),
