ar71xx: add an external reset callback for ar913x and use it in ath9k - should reduce the frequency of DMA stop failures

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36530 3c298f89-4303-0410-b956-a3cf2f4a3e73

10 files changed, 78 insertions, 11 deletions

diff --git a/package/mac80211/patches/300-pending_work.patch b/package/mac80211/patches/300-pending_work.patch
index 92bf897b2a..379e8f47ee 100644
--- a/package/mac80211/patches/300-pending_work.patch
+++ b/package/mac80211/patches/300-pending_work.patch
@@ -25,7 +25,43 @@
  	int nstations; /* number of station vifs */
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1698,12 +1698,11 @@ static void ath9k_hw_reset_opmode(struct
+@@ -1366,7 +1366,10 @@ static bool ath9k_hw_set_reset(struct at
+ 
+ 	REGWRITE_BUFFER_FLUSH(ah);
+ 
+-	udelay(50);
++	if (AR_SREV_9100(ah))
++		mdelay(10);
++	else
++		udelay(50);
+ 
+ 	REG_WRITE(ah, AR_RTC_RC, 0);
+ 	if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
+@@ -1377,8 +1380,12 @@ static bool ath9k_hw_set_reset(struct at
+ 	if (!AR_SREV_9100(ah))
+ 		REG_WRITE(ah, AR_RC, 0);
+ 
+-	if (AR_SREV_9100(ah))
++	if (AR_SREV_9100(ah) && type != ATH9K_RESET_WARM) {
++		if (ah->external_reset)
++			ah->external_reset();
++
+ 		udelay(50);
++	}
+ 
+ 	return true;
+ }
+@@ -1464,7 +1471,8 @@ static bool ath9k_hw_chip_reset(struct a
+ 			reset_type = ATH9K_RESET_POWER_ON;
+ 		else
+ 			reset_type = ATH9K_RESET_COLD;
+-	} else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
++	} else if (ah->chip_fullsleep ||
++		   REG_READ(ah, AR_Q_TXE) ||
+ 		   (REG_READ(ah, AR_CR) & AR_CR_RXE))
+ 		reset_type = ATH9K_RESET_COLD;
+ 
+@@ -1698,12 +1706,11 @@ static void ath9k_hw_reset_opmode(struct
  
  	ENABLE_REGWRITE_BUFFER(ah);
  
diff --git a/package/mac80211/patches/510-ath9k_intr_mitigation_tweak.patch b/package/mac80211/patches/510-ath9k_intr_mitigation_tweak.patch
index 93b7889ee5..1044590f7d 100644
--- a/package/mac80211/patches/510-ath9k_intr_mitigation_tweak.patch
+++ b/package/mac80211/patches/510-ath9k_intr_mitigation_tweak.patch
@@ -1,6 +1,6 @@
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -2001,8 +2001,8 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+@@ -2009,8 +2009,8 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  		REG_WRITE(ah, AR_OBS, 8);
  
  	if (ah->config.rx_intr_mitigation) {
diff --git a/package/mac80211/patches/524-ath9k_use_configured_antenna_gain.patch b/package/mac80211/patches/524-ath9k_use_configured_antenna_gain.patch
index bee6517602..d5edeee9f8 100644
--- a/package/mac80211/patches/524-ath9k_use_configured_antenna_gain.patch
+++ b/package/mac80211/patches/524-ath9k_use_configured_antenna_gain.patch
@@ -10,7 +10,7 @@
  
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -2843,7 +2843,7 @@ void ath9k_hw_apply_txpower(struct ath_h
+@@ -2851,7 +2851,7 @@ void ath9k_hw_apply_txpower(struct ath_h
  	channel = chan->chan;
  	chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
  	new_pwr = min_t(int, chan_pwr, reg->power_limit);
diff --git a/package/mac80211/patches/553-ath9k_debugfs_diag.patch b/package/mac80211/patches/553-ath9k_debugfs_diag.patch
index efbfadfbd3..2db743816e 100644
--- a/package/mac80211/patches/553-ath9k_debugfs_diag.patch
+++ b/package/mac80211/patches/553-ath9k_debugfs_diag.patch
@@ -94,7 +94,7 @@
  void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause);
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1845,6 +1845,20 @@ fail:
+@@ -1853,6 +1853,20 @@ fail:
  	return -EINVAL;
  }
  
@@ -115,7 +115,7 @@
  int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
  		   struct ath9k_hw_cal_data *caldata, bool fastcc)
  {
-@@ -2046,6 +2060,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+@@ -2054,6 +2068,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  	}
  
  	ath9k_hw_apply_gpio_override(ah);
diff --git a/package/mac80211/patches/555-ath9k-allow-to-disable-bands-via-platform-data.patch b/package/mac80211/patches/555-ath9k-allow-to-disable-bands-via-platform-data.patch
index c2fd8733b9..3e05291e99 100644
--- a/package/mac80211/patches/555-ath9k-allow-to-disable-bands-via-platform-data.patch
+++ b/package/mac80211/patches/555-ath9k-allow-to-disable-bands-via-platform-data.patch
@@ -12,7 +12,7 @@
  
 --- a/drivers/net/wireless/ath/ath9k/hw.c
 +++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -2439,17 +2439,25 @@ int ath9k_hw_fill_cap_info(struct ath_hw
+@@ -2447,17 +2447,25 @@ int ath9k_hw_fill_cap_info(struct ath_hw
  	}
  
  	eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
diff --git a/target/linux/ar71xx/patches-3.8/480-ar913x_wmac_external_reset.patch b/target/linux/ar71xx/patches-3.8/480-ar913x_wmac_external_reset.patch
new file mode 100644
index 0000000000..9b704a3c47
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.8/480-ar913x_wmac_external_reset.patch
@@ -0,0 +1,31 @@
+--- a/arch/mips/ath79/dev-wmac.c
++++ b/arch/mips/ath79/dev-wmac.c
+@@ -44,7 +44,7 @@ static struct platform_device ath79_wmac
+ 	},
+ };
+ 
+-static void __init ar913x_wmac_setup(void)
++static int ar913x_wmac_reset(void)
+ {
+ 	/* reset the WMAC */
+ 	ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
+@@ -53,10 +53,19 @@ static void __init ar913x_wmac_setup(voi
+ 	ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
+ 	mdelay(10);
+ 
++	return 0;
++}
++
++static void __init ar913x_wmac_setup(void)
++{
++	ar913x_wmac_reset();
++
+ 	ath79_wmac_resources[0].start = AR913X_WMAC_BASE;
+ 	ath79_wmac_resources[0].end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1;
+ 	ath79_wmac_resources[1].start = ATH79_CPU_IRQ(2);
+ 	ath79_wmac_resources[1].end = ATH79_CPU_IRQ(2);
++
++	ath79_wmac_data.external_reset = ar913x_wmac_reset;
+ }
+ 
+ 
diff --git a/target/linux/ar71xx/patches-3.8/501-MIPS-ath79-add-mac-argument-to-ath79_register_wmac.patch b/target/linux/ar71xx/patches-3.8/501-MIPS-ath79-add-mac-argument-to-ath79_register_wmac.patch
index de0db9a965..d9b8682f0d 100644
--- a/target/linux/ar71xx/patches-3.8/501-MIPS-ath79-add-mac-argument-to-ath79_register_wmac.patch
+++ b/target/linux/ar71xx/patches-3.8/501-MIPS-ath79-add-mac-argument-to-ath79_register_wmac.patch
@@ -16,7 +16,7 @@
  static struct ath9k_platform_data ath79_wmac_data;
  
  static struct resource ath79_wmac_resources[] = {
-@@ -151,7 +153,7 @@ static void qca955x_wmac_setup(void)
+@@ -160,7 +162,7 @@ static void qca955x_wmac_setup(void)
  		ath79_wmac_data.is_clk_25mhz = true;
  }
  
@@ -25,7 +25,7 @@
  {
  	if (soc_is_ar913x())
  		ar913x_wmac_setup();
-@@ -168,5 +170,10 @@ void __init ath79_register_wmac(u8 *cal_
+@@ -177,5 +179,10 @@ void __init ath79_register_wmac(u8 *cal_
  		memcpy(ath79_wmac_data.eeprom_data, cal_data,
  		       sizeof(ath79_wmac_data.eeprom_data));
  
diff --git a/target/linux/ar71xx/patches-3.8/522-MIPS-ath79-add-ath79_wmac_register_simple-helper.patch b/target/linux/ar71xx/patches-3.8/522-MIPS-ath79-add-ath79_wmac_register_simple-helper.patch
index 74309b631f..74928e6835 100644
--- a/target/linux/ar71xx/patches-3.8/522-MIPS-ath79-add-ath79_wmac_register_simple-helper.patch
+++ b/target/linux/ar71xx/patches-3.8/522-MIPS-ath79-add-ath79_wmac_register_simple-helper.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -180,3 +180,9 @@ void __init ath79_register_wmac(u8 *cal_
+@@ -189,3 +189,9 @@ void __init ath79_register_wmac(u8 *cal_
  
  	platform_device_register(&ath79_wmac_device);
  }
diff --git a/target/linux/ar71xx/patches-3.8/523-MIPS-ath79-OTP-support.patch b/target/linux/ar71xx/patches-3.8/523-MIPS-ath79-OTP-support.patch
index 84273d3d48..0672cf170d 100644
--- a/target/linux/ar71xx/patches-3.8/523-MIPS-ath79-OTP-support.patch
+++ b/target/linux/ar71xx/patches-3.8/523-MIPS-ath79-OTP-support.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -156,6 +156,137 @@ static void qca955x_wmac_setup(void)
+@@ -165,6 +165,137 @@ static void qca955x_wmac_setup(void)
  		ath79_wmac_data.is_clk_25mhz = true;
  }
  
diff --git a/target/linux/ar71xx/patches-3.8/524-MIPS-ath79-add-ath79_wmac_disable_25ghz-helpers.patch b/target/linux/ar71xx/patches-3.8/524-MIPS-ath79-add-ath79_wmac_disable_25ghz-helpers.patch
index 8c6fd408fa..7b4b6ef284 100644
--- a/target/linux/ar71xx/patches-3.8/524-MIPS-ath79-add-ath79_wmac_disable_25ghz-helpers.patch
+++ b/target/linux/ar71xx/patches-3.8/524-MIPS-ath79-add-ath79_wmac_disable_25ghz-helpers.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -287,6 +287,16 @@ bool __init ar93xx_wmac_read_mac_address
+@@ -296,6 +296,16 @@ bool __init ar93xx_wmac_read_mac_address
  	return ret;
  }