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Updates to DRAM controllers to avoid use of SMBus Quick Write and add fallback paths if SMBus Block Write is unavailable, in preparation for X299 SMBus support

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Adam Honse
2026-06-14 16:52:20 -05:00
parent 82a486bfb6
commit abe7a49092
10 changed files with 108 additions and 59 deletions
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6
Controllers/ENESMBusController/ENESMBusControllerDetect.cpp
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@@ -112,7 +112,7 @@ static void ENERegisterWrite(i2c_smbus_interface* bus, ene_dev_id dev, ene_regis
* TestForENESMBusController *
* *
* Tests the given address to see if an ENE controller exists there. First does a *
* quick write to test for a response, and if so does a simple read at 0xA0 to test *
* byte read to test for a response, and if so does a simple read at 0xA0 to test *
* for incrementing values 0...F which was observed at this location during data dump *
* *
* Also tests for the string "Micron" in the ENE register space. Crucial (Micron) *
@@ -202,7 +202,7 @@ void DetectENESMBusDRAMControllers(std::vector<i2c_smbus_interface*> &busses)
for (unsigned int slot = 0; slot < 8; slot++)
{
int res = busses[bus]->i2c_smbus_write_quick(0x77, I2C_SMBUS_WRITE);
int res = busses[bus]->i2c_smbus_read_byte(0x77);
if(res < 0)
{
@@ -219,7 +219,7 @@ void DetectENESMBusDRAMControllers(std::vector<i2c_smbus_interface*> &busses)
{
LOG_DEBUG("[ENE SMBus DRAM] Testing address %02X to see if there is a device there", ene_ram_addresses[address_list_idx]);
res = busses[bus]->i2c_smbus_write_quick(ene_ram_addresses[address_list_idx], I2C_SMBUS_WRITE);
res = busses[bus]->i2c_smbus_read_byte(ene_ram_addresses[address_list_idx]);
}
else
{