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authorStanislaw Gruszka <sgruszka@redhat.com>2013-09-09 12:37:38 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-09-26 15:13:36 -0400
commit61edc7fad65c80e9f8ddf522339c1d2d91c6328d (patch)
tree2bbd42aab31c883249e65ca11e9fee52954f7676 /drivers/net/wireless
parentb2a312046b6066cbf3bfb9154c7390eb0154fe03 (diff)
downloadop-kernel-dev-61edc7fad65c80e9f8ddf522339c1d2d91c6328d.zip
op-kernel-dev-61edc7fad65c80e9f8ddf522339c1d2d91c6328d.tar.gz
rt2800: comment enable radio initialization sequence
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 88ce656..470a7aa 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -6653,17 +6653,20 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
u16 word;
/*
- * Initialize all registers.
+ * Initialize MAC registers.
*/
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
rt2800_init_registers(rt2x00dev)))
return -EIO;
+ /*
+ * Wait BBP/RF to wake up.
+ */
if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev)))
return -EIO;
/*
- * Send signal to firmware during boot time.
+ * Send signal during boot time to initialize firmware.
*/
rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
@@ -6672,9 +6675,15 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
msleep(1);
+ /*
+ * Make sure BBP is up and running.
+ */
if (unlikely(rt2800_wait_bbp_ready(rt2x00dev)))
return -EIO;
+ /*
+ * Initialize BBP/RF registers.
+ */
rt2800_init_bbp(rt2x00dev);
rt2800_init_rfcsr(rt2x00dev);
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