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ar71xx: disable 40Mhz refclk for QCA953x
authorSven Eckelmann <sven@narfation.org>
Fri, 19 Jan 2018 13:02:09 +0000 (14:02 +0100)
committerPiotr Dymacz <pepe2k@gmail.com>
Thu, 22 Feb 2018 17:53:22 +0000 (18:53 +0100)
The "QCA9531 v2.0 802.11n 2x2 2.4 GHz Premium SOC for WLAN Platforms"
datasheet (80-Y7991-1 Rev. C - October 2014) doesn't specify support for a
40 Mhz reference clock. The register description for "Bootstrap Options"
(page 31) defines following states for the bit 4 (REF_CLK):

* 0 - CLK25 (default)
* 1 - (reserved)

Devices like the TP-Link CPE210 v2 has this bit set to 1 but is using a 25
Mhz reference clock. OpenWrt is still interpreted this bit as 40 Mhz and
then break the bootup of the system due to this incorrect interpretation.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
[refreshed patches]
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch patch | blob | history
target/linux/ar71xx/patches-4.4/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch patch | blob | history
target/linux/ar71xx/patches-4.4/631-MIPS-ath79-wmac-enable-set-led-pin.patch patch | blob | history
target/linux/ar71xx/patches-4.4/640-MIPS-ath79-add-QCA955x-wmac-reset.patch patch | blob | history
target/linux/ar71xx/patches-4.9/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch patch | blob | history
target/linux/ar71xx/patches-4.9/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch patch | blob | history
target/linux/ar71xx/patches-4.9/631-MIPS-ath79-wmac-enable-set-led-pin.patch patch | blob | history
target/linux/ar71xx/patches-4.9/640-MIPS-ath79-add-QCA955x-wmac-reset.patch patch | blob | history

diff --git a/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch b/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
index 5cfb4e78d73edb34839eaa2c20216ced80f4cccf..fcaff77619203be8e3d4e4a6839cadddb9b4be75 100644 (file)
--- a/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
+++ b/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
@@ -44,7 +44,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  config ATH79_NVRAM
 --- a/arch/mips/ath79/clock.c
 +++ b/arch/mips/ath79/clock.c
-@@ -354,6 +354,91 @@ static void __init ar934x_clocks_init(vo
+@@ -354,6 +354,87 @@ static void __init ar934x_clocks_init(vo
        iounmap(dpll_base);
  }
  
@@ -56,13 +56,9 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +      unsigned long ahb_rate;
 +      u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv;
 +      u32 cpu_pll, ddr_pll;
-+      u32 bootstrap;
 +
-+      bootstrap = ath79_reset_rr(QCA953X_RESET_REG_BOOTSTRAP);
-+      if (bootstrap & QCA953X_BOOTSTRAP_REF_CLK_40)
-+              ref_rate = 40 * 1000 * 1000;
-+      else
-+              ref_rate = 25 * 1000 * 1000;
++      /* QCA953X only supports 25MHz ref_clk */
++      ref_rate = 25 * 1000 * 1000;
 +
 +      pll = ath79_pll_rr(QCA953X_PLL_CPU_CONFIG_REG);
 +      out_div = (pll >> QCA953X_PLL_CPU_CONFIG_OUTDIV_SHIFT) &
@@ -136,7 +132,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  static void __init qca955x_clocks_init(void)
  {
        unsigned long ref_rate;
-@@ -451,6 +536,8 @@ void __init ath79_clocks_init(void)
+@@ -451,6 +532,8 @@ void __init ath79_clocks_init(void)
                ar933x_clocks_init();
        else if (soc_is_ar934x())
                ar934x_clocks_init();
@@ -247,14 +243,12 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  
        ath79_wmac_data.external_reset = ar933x_wmac_reset;
  }
-@@ -150,6 +150,26 @@ static void ar934x_wmac_setup(void)
+@@ -150,6 +150,21 @@ static void ar934x_wmac_setup(void)
        ath79_wmac_data.get_mac_revision = ar93xx_get_soc_revision;
  }
  
 +static void qca953x_wmac_setup(void)
 +{
-+      u32 t;
-+
 +      ath79_wmac_device.name = "qca953x_wmac";
 +
 +      ath79_wmac_resources[0].start = QCA953X_WMAC_BASE;
@@ -262,11 +256,8 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +      ath79_wmac_resources[1].start = ATH79_IP2_IRQ(1);
 +      ath79_wmac_resources[1].end = ATH79_IP2_IRQ(1);
 +
-+      t = ath79_reset_rr(QCA953X_RESET_REG_BOOTSTRAP);
-+      if (t & QCA953X_BOOTSTRAP_REF_CLK_40)
-+              ath79_wmac_data.is_clk_25mhz = false;
-+      else
-+              ath79_wmac_data.is_clk_25mhz = true;
++      /* QCA953X only supports 25MHz ref_clk */
++      ath79_wmac_data.is_clk_25mhz = true;
 +
 +      ath79_wmac_data.get_mac_revision = ar93xx_get_soc_revision;
 +}
@@ -274,7 +265,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  static void qca955x_wmac_setup(void)
  {
        u32 t;
-@@ -379,6 +399,8 @@ void __init ath79_register_wmac(u8 *cal_
+@@ -379,6 +394,8 @@ void __init ath79_register_wmac(u8 *cal_
                ar933x_wmac_setup();
        else if (soc_is_ar934x())
                ar934x_wmac_setup();
@@ -550,7 +541,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +#define QCA953X_BOOTSTRAP_SW_OPTION2  BIT(12)
 +#define QCA953X_BOOTSTRAP_SW_OPTION1  BIT(11)
 +#define QCA953X_BOOTSTRAP_EJTAG_MODE  BIT(5)
-+#define QCA953X_BOOTSTRAP_REF_CLK_40  BIT(4)
++#define QCA953X_BOOTSTRAP_REF_CLK     BIT(4)
 +#define QCA953X_BOOTSTRAP_SDRAM_DISABLED BIT(1)
 +#define QCA953X_BOOTSTRAP_DDR1                BIT(0)
 +
diff --git a/target/linux/ar71xx/patches-4.4/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch b/target/linux/ar71xx/patches-4.4/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch
index a381851ccfb5500715e38ac542c916165eed93dc..6ded29b1deae25cc2c38d058f30a090f661bb060 100644 (file)
--- a/target/linux/ar71xx/patches-4.4/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch
+++ b/target/linux/ar71xx/patches-4.4/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch
@@ -24,7 +24,7 @@
  config ATH79_NVRAM
 --- a/arch/mips/ath79/clock.c
 +++ b/arch/mips/ath79/clock.c
-@@ -524,6 +524,100 @@ static void __init qca955x_clocks_init(v
+@@ -520,6 +520,100 @@ static void __init qca955x_clocks_init(v
        clk_add_alias("uart", NULL, "ref", NULL);
  }
  
@@ -125,7 +125,7 @@
  void __init ath79_clocks_init(void)
  {
        if (soc_is_ar71xx())
-@@ -540,6 +634,8 @@ void __init ath79_clocks_init(void)
+@@ -536,6 +630,8 @@ void __init ath79_clocks_init(void)
                qca953x_clocks_init();
        else if (soc_is_qca955x())
                qca955x_clocks_init();
@@ -219,7 +219,7 @@
  }
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -200,6 +200,26 @@ static void qca955x_wmac_setup(void)
+@@ -195,6 +195,26 @@ static void qca955x_wmac_setup(void)
  #define AR93XX_OTP_READ_DATA \
        (soc_is_ar934x() ? AR934X_OTP_READ_DATA : AR9300_OTP_READ_DATA)
  
@@ -246,7 +246,7 @@
  static bool __init
  ar93xx_wmac_otp_read_word(void __iomem *base, int addr, u32 *data)
  {
-@@ -403,6 +423,8 @@ void __init ath79_register_wmac(u8 *cal_
+@@ -398,6 +418,8 @@ void __init ath79_register_wmac(u8 *cal_
                qca953x_wmac_setup();
        else if (soc_is_qca955x())
                qca955x_wmac_setup();
diff --git a/target/linux/ar71xx/patches-4.4/631-MIPS-ath79-wmac-enable-set-led-pin.patch b/target/linux/ar71xx/patches-4.4/631-MIPS-ath79-wmac-enable-set-led-pin.patch
index 29f7f3d0a2c2d57f226e130e3e6fd13e27b7e6ce..a312217711e6c8273d935554510a2afcd5327275 100644 (file)
--- a/target/linux/ar71xx/patches-4.4/631-MIPS-ath79-wmac-enable-set-led-pin.patch
+++ b/target/linux/ar71xx/patches-4.4/631-MIPS-ath79-wmac-enable-set-led-pin.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -411,6 +411,11 @@ void __init ath79_wmac_set_ext_lna_gpio(
+@@ -406,6 +406,11 @@ void __init ath79_wmac_set_ext_lna_gpio(
                ar934x_set_ext_lna_gpio(chain, gpio);
  }
  
diff --git a/target/linux/ar71xx/patches-4.4/640-MIPS-ath79-add-QCA955x-wmac-reset.patch b/target/linux/ar71xx/patches-4.4/640-MIPS-ath79-add-QCA955x-wmac-reset.patch
index d7f4536ba3b9b6461b283b7bf707706432497d58..bb315a1e65ce4f0860cba55d32e2beb8f365541d 100644 (file)
--- a/target/linux/ar71xx/patches-4.4/640-MIPS-ath79-add-QCA955x-wmac-reset.patch
+++ b/target/linux/ar71xx/patches-4.4/640-MIPS-ath79-add-QCA955x-wmac-reset.patch
@@ -32,7 +32,7 @@
   */
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -170,6 +170,27 @@ static void qca953x_wmac_setup(void)
+@@ -165,6 +165,27 @@ static void qca953x_wmac_setup(void)
        ath79_wmac_data.get_mac_revision = ar93xx_get_soc_revision;
  }
  
@@ -60,7 +60,7 @@
  static void qca955x_wmac_setup(void)
  {
        u32 t;
-@@ -186,6 +207,8 @@ static void qca955x_wmac_setup(void)
+@@ -181,6 +202,8 @@ static void qca955x_wmac_setup(void)
                ath79_wmac_data.is_clk_25mhz = false;
        else
                ath79_wmac_data.is_clk_25mhz = true;
diff --git a/target/linux/ar71xx/patches-4.9/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch b/target/linux/ar71xx/patches-4.9/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
index 03ff6c6aac1a0b45e22287db59ca8e2583b6dc1b..ed887cc500923778c48ffdd65b2dd18d1242b0f7 100644 (file)
--- a/target/linux/ar71xx/patches-4.9/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
+++ b/target/linux/ar71xx/patches-4.9/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
@@ -44,7 +44,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  config ATH79_NVRAM
 --- a/arch/mips/ath79/clock.c
 +++ b/arch/mips/ath79/clock.c
-@@ -358,6 +358,91 @@ static void __init ar934x_clocks_init(vo
+@@ -358,6 +358,87 @@ static void __init ar934x_clocks_init(vo
        iounmap(dpll_base);
  }
  
@@ -56,13 +56,9 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +      unsigned long ahb_rate;
 +      u32 pll, out_div, ref_div, nint, frac, clk_ctrl, postdiv;
 +      u32 cpu_pll, ddr_pll;
-+      u32 bootstrap;
 +
-+      bootstrap = ath79_reset_rr(QCA953X_RESET_REG_BOOTSTRAP);
-+      if (bootstrap & QCA953X_BOOTSTRAP_REF_CLK_40)
-+              ref_rate = 40 * 1000 * 1000;
-+      else
-+              ref_rate = 25 * 1000 * 1000;
++      /* QCA953X only supports 25MHz ref_clk */
++      ref_rate = 25 * 1000 * 1000;
 +
 +      pll = ath79_pll_rr(QCA953X_PLL_CPU_CONFIG_REG);
 +      out_div = (pll >> QCA953X_PLL_CPU_CONFIG_OUTDIV_SHIFT) &
@@ -136,7 +132,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  static void __init qca955x_clocks_init(void)
  {
        unsigned long ref_rate;
-@@ -453,6 +538,8 @@ void __init ath79_clocks_init(void)
+@@ -453,6 +534,8 @@ void __init ath79_clocks_init(void)
                ar933x_clocks_init();
        else if (soc_is_ar934x())
                ar934x_clocks_init();
@@ -247,14 +243,12 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  
        ath79_wmac_data.external_reset = ar933x_wmac_reset;
  }
-@@ -150,6 +150,26 @@ static void ar934x_wmac_setup(void)
+@@ -150,6 +150,21 @@ static void ar934x_wmac_setup(void)
        ath79_wmac_data.get_mac_revision = ar93xx_get_soc_revision;
  }
  
 +static void qca953x_wmac_setup(void)
 +{
-+      u32 t;
-+
 +      ath79_wmac_device.name = "qca953x_wmac";
 +
 +      ath79_wmac_resources[0].start = QCA953X_WMAC_BASE;
@@ -262,11 +256,8 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +      ath79_wmac_resources[1].start = ATH79_IP2_IRQ(1);
 +      ath79_wmac_resources[1].end = ATH79_IP2_IRQ(1);
 +
-+      t = ath79_reset_rr(QCA953X_RESET_REG_BOOTSTRAP);
-+      if (t & QCA953X_BOOTSTRAP_REF_CLK_40)
-+              ath79_wmac_data.is_clk_25mhz = false;
-+      else
-+              ath79_wmac_data.is_clk_25mhz = true;
++      /* QCA953X only supports 25MHz ref_clk */
++      ath79_wmac_data.is_clk_25mhz = true;
 +
 +      ath79_wmac_data.get_mac_revision = ar93xx_get_soc_revision;
 +}
@@ -274,7 +265,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
  static void qca955x_wmac_setup(void)
  {
        u32 t;
-@@ -379,6 +399,8 @@ void __init ath79_register_wmac(u8 *cal_
+@@ -379,6 +394,8 @@ void __init ath79_register_wmac(u8 *cal_
                ar933x_wmac_setup();
        else if (soc_is_ar934x())
                ar934x_wmac_setup();
@@ -550,7 +541,7 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +#define QCA953X_BOOTSTRAP_SW_OPTION2  BIT(12)
 +#define QCA953X_BOOTSTRAP_SW_OPTION1  BIT(11)
 +#define QCA953X_BOOTSTRAP_EJTAG_MODE  BIT(5)
-+#define QCA953X_BOOTSTRAP_REF_CLK_40  BIT(4)
++#define QCA953X_BOOTSTRAP_REF_CLK     BIT(4)
 +#define QCA953X_BOOTSTRAP_SDRAM_DISABLED BIT(1)
 +#define QCA953X_BOOTSTRAP_DDR1                BIT(0)
 +
diff --git a/target/linux/ar71xx/patches-4.9/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch b/target/linux/ar71xx/patches-4.9/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch
index e6eaa7123a960fa5ceab0e19b12cbff0f8043781..03bb9c31f6e41527197c810409c3003a52118df3 100644 (file)
--- a/target/linux/ar71xx/patches-4.9/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch
+++ b/target/linux/ar71xx/patches-4.9/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch
@@ -24,7 +24,7 @@
  config ATH79_NVRAM
 --- a/arch/mips/ath79/clock.c
 +++ b/arch/mips/ath79/clock.c
-@@ -528,6 +528,100 @@ static void __init qca955x_clocks_init(v
+@@ -524,6 +524,100 @@ static void __init qca955x_clocks_init(v
        clk_add_alias("uart", NULL, "ref", NULL);
  }
  
@@ -125,7 +125,7 @@
  void __init ath79_clocks_init(void)
  {
        if (soc_is_ar71xx())
-@@ -542,6 +636,8 @@ void __init ath79_clocks_init(void)
+@@ -538,6 +632,8 @@ void __init ath79_clocks_init(void)
                qca953x_clocks_init();
        else if (soc_is_qca955x())
                qca955x_clocks_init();
@@ -219,7 +219,7 @@
  }
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -200,6 +200,26 @@ static void qca955x_wmac_setup(void)
+@@ -195,6 +195,26 @@ static void qca955x_wmac_setup(void)
  #define AR93XX_OTP_READ_DATA \
        (soc_is_ar934x() ? AR934X_OTP_READ_DATA : AR9300_OTP_READ_DATA)
  
@@ -246,7 +246,7 @@
  static bool __init
  ar93xx_wmac_otp_read_word(void __iomem *base, int addr, u32 *data)
  {
-@@ -403,6 +423,8 @@ void __init ath79_register_wmac(u8 *cal_
+@@ -398,6 +418,8 @@ void __init ath79_register_wmac(u8 *cal_
                qca953x_wmac_setup();
        else if (soc_is_qca955x())
                qca955x_wmac_setup();
diff --git a/target/linux/ar71xx/patches-4.9/631-MIPS-ath79-wmac-enable-set-led-pin.patch b/target/linux/ar71xx/patches-4.9/631-MIPS-ath79-wmac-enable-set-led-pin.patch
index 29f7f3d0a2c2d57f226e130e3e6fd13e27b7e6ce..a312217711e6c8273d935554510a2afcd5327275 100644 (file)
--- a/target/linux/ar71xx/patches-4.9/631-MIPS-ath79-wmac-enable-set-led-pin.patch
+++ b/target/linux/ar71xx/patches-4.9/631-MIPS-ath79-wmac-enable-set-led-pin.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -411,6 +411,11 @@ void __init ath79_wmac_set_ext_lna_gpio(
+@@ -406,6 +406,11 @@ void __init ath79_wmac_set_ext_lna_gpio(
                ar934x_set_ext_lna_gpio(chain, gpio);
  }
  
diff --git a/target/linux/ar71xx/patches-4.9/640-MIPS-ath79-add-QCA955x-wmac-reset.patch b/target/linux/ar71xx/patches-4.9/640-MIPS-ath79-add-QCA955x-wmac-reset.patch
index d7f4536ba3b9b6461b283b7bf707706432497d58..bb315a1e65ce4f0860cba55d32e2beb8f365541d 100644 (file)
--- a/target/linux/ar71xx/patches-4.9/640-MIPS-ath79-add-QCA955x-wmac-reset.patch
+++ b/target/linux/ar71xx/patches-4.9/640-MIPS-ath79-add-QCA955x-wmac-reset.patch
@@ -32,7 +32,7 @@
   */
 --- a/arch/mips/ath79/dev-wmac.c
 +++ b/arch/mips/ath79/dev-wmac.c
-@@ -170,6 +170,27 @@ static void qca953x_wmac_setup(void)
+@@ -165,6 +165,27 @@ static void qca953x_wmac_setup(void)
        ath79_wmac_data.get_mac_revision = ar93xx_get_soc_revision;
  }
  
@@ -60,7 +60,7 @@
  static void qca955x_wmac_setup(void)
  {
        u32 t;
-@@ -186,6 +207,8 @@ static void qca955x_wmac_setup(void)
+@@ -181,6 +202,8 @@ static void qca955x_wmac_setup(void)
                ath79_wmac_data.is_clk_25mhz = false;
        else
                ath79_wmac_data.is_clk_25mhz = true;
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