rt2800: rearrange bbp/rfcsr initialization

This makes order of initialization of various registers similar like
on vendor driver.

Based on:
NICInitializeAsic()
RT5592LoadRFNormalModeSetup()

from:
DPO_RT5572_LinuxSTA_2.6.1.3_20121022/common/rtmp_init.c
DPO_RT5572_LinuxSTA_2.6.1.3_20121022/chip/rt5592.c

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Tested-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 45 insertions, 5 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index e96ea3298c7c..e36cf4a233fe 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4713,6 +4713,9 @@ static void rt2800_init_rfcsr_5392(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_rfcsr_5592(struct rt2x00_dev *rt2x00dev)
 {
+        u8 reg;
+        u16 eeprom;
+
         rt2800_rfcsr_write(rt2x00dev, 1, 0x3F);
         rt2800_rfcsr_write(rt2x00dev, 3, 0x08);
         rt2800_rfcsr_write(rt2x00dev, 3, 0x08);
@@ -4740,6 +4743,35 @@ static void rt2800_init_rfcsr_5592(struct rt2x00_dev *rt2x00dev)
         msleep(1);
 
         rt2800_adjust_freq_offset(rt2x00dev);
+
+        rt2800_bbp_read(rt2x00dev, 138, &reg);
+
+        /*  Turn off unused DAC1 and ADC1 to reduce power consumption */
+        rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
+        if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH) == 1)
+                rt2x00_set_field8(&reg, BBP138_RX_ADC1, 0);
+        if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_TXPATH) == 1)
+                rt2x00_set_field8(&reg, BBP138_TX_DAC1, 1);
+
+        rt2800_bbp_write(rt2x00dev, 138, reg);
+
+        /* Enable DC filter */
+        if (rt2x00_rt_rev_gte(rt2x00dev, RT5592, REV_RT5592C))
+                rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+
+        rt2800_rfcsr_read(rt2x00dev, 38, &reg);
+        rt2x00_set_field8(&reg, RFCSR38_RX_LO1_EN, 0);
+        rt2800_rfcsr_write(rt2x00dev, 38, reg);
+
+        rt2800_rfcsr_read(rt2x00dev, 39, &reg);
+        rt2x00_set_field8(&reg, RFCSR39_RX_LO2_EN, 0);
+        rt2800_rfcsr_write(rt2x00dev, 39, reg);
+
+        rt2800_bbp4_mac_if_ctrl(rt2x00dev);
+
+        rt2800_rfcsr_read(rt2x00dev, 30, &reg);
+        rt2x00_set_field8(&reg, RFCSR30_RX_VCM, 2);
+        rt2800_rfcsr_write(rt2x00dev, 30, reg);
 }
 
 static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
@@ -4817,7 +4849,7 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
                 break;
         case RT5592:
                 rt2800_init_rfcsr_5592(rt2x00dev);
-                break;
+                return 0;
         }
 
         if (rt2x00_rt_rev_lt(rt2x00dev, RT3070, REV_RT3070F)) {
@@ -5024,15 +5056,23 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
          * Initialize all registers.
          */
         if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
-                     rt2800_init_registers(rt2x00dev) ||
-                     rt2800_init_bbp(rt2x00dev) ||
-                     rt2800_init_rfcsr(rt2x00dev)))
+                     rt2800_init_registers(rt2x00dev)))
                 return -EIO;
 
         /*
          * Send signal to firmware during boot time.
          */
-        rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
+        rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
+        rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
+        if (rt2x00_is_usb(rt2x00dev)) {
+                rt2800_register_write(rt2x00dev, H2M_INT_SRC, 0);
+                rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
+        }
+        msleep(1);
+
+        if (unlikely(rt2800_init_bbp(rt2x00dev) ||
+                     rt2800_init_rfcsr(rt2x00dev)))
+                return -EIO;
 
         if (rt2x00_is_usb(rt2x00dev) &&
             (rt2x00_rt(rt2x00dev, RT3070) ||