* the same length on the PCB, which means it's possible for MOD DEF 0 to
* connect before the I2C bus on MOD DEF 1/2.
*
- * The SFP MSA specifies 300ms as t_init (the time taken for TX_FAULT to
- * be deasserted) but makes no mention of the earliest time before we can
- * access the I2C EEPROM. However, Avago modules require 300ms.
+ * The SFF-8472 specifies t_serial ("Time from power on until module is
+ * ready for data transmission over the two wire serial bus.") as 300ms.
*/
-#define T_PROBE_INIT msecs_to_jiffies(300)
+#define T_SERIAL msecs_to_jiffies(300)
#define T_HPOWER_LEVEL msecs_to_jiffies(300)
#define T_PROBE_RETRY msecs_to_jiffies(100)
}
}
-/* This state machine tracks the insert/remove state of
- * the module, and handles probing the on-board EEPROM.
+/* This state machine tracks the insert/remove state of the module, probes
+ * the on-board EEPROM, and sets up the power level.
*/
static void sfp_sm_module(struct sfp *sfp, unsigned int event)
{
default:
if (event == SFP_E_INSERT && sfp->attached) {
sfp_module_tx_disable(sfp);
- sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_PROBE_INIT);
+ sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
}
break;