Commit e8b461c3 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by John W. Linville
Browse files

rt2800pci: Fix 'Error - MCU request failed' during initialization

Bring MCU operations during device initialization to sync
with legacy driver.

This should fix following error:
phy0 -> rt2800pci_mcu_status: Error - MCU request failed,
no response from hardware
Signed-off-by: default avatarJakub Kicinski <>
Acked-by: default avatarGertjan van Wingerde <>
Acked-by: default avatarIvo van Doorn <>
Signed-off-by: default avatarJohn W. Linville <>
parent 09a3311c
......@@ -502,11 +502,27 @@ static int rt2800pci_init_registers(struct rt2x00_dev *rt2x00dev)
static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
int retval;
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
return -EIO;
return rt2800_enable_radio(rt2x00dev);
retval = rt2800_enable_radio(rt2x00dev);
if (retval)
return retval;
/* After resume MCU_BOOT_SIGNAL will trash these. */
rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
rt2800_mcu_request(rt2x00dev, MCU_SLEEP, TOKEN_RADIO_OFF, 0xff, 0x02);
rt2800pci_mcu_status(rt2x00dev, TOKEN_RADIO_OFF);
rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKEUP, 0, 0);
rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKEUP);
return retval;
static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
......@@ -544,13 +560,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
switch (state) {
* Before the radio can be enabled, the device first has
* to be woken up. After that it needs a bit of time
* to be fully awake and then the radio can be enabled.
rt2800pci_set_state(rt2x00dev, STATE_AWAKE);
retval = rt2800pci_enable_radio(rt2x00dev);
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