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authorSven Eckelmann <sven@narfation.org>2018-01-19 14:02:09 +0100
committerPiotr Dymacz <pepe2k@gmail.com>2018-02-22 18:53:22 +0100
commitb1d57dadb2da0e010e157fd2383523578c9dcc2e (patch)
treefaabe75d5b6a9d5fbad77f0eb252eef998257a2b /target/linux/ar71xx/patches-4.9
parentc6bd0b48940cfbabe3fd7f9e46d125316119a7e4 (diff)
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ar71xx: disable 40Mhz refclk for QCA953x
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>
Diffstat (limited to 'target/linux/ar71xx/patches-4.9')
-rw-r--r--target/linux/ar71xx/patches-4.9/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch27
-rw-r--r--target/linux/ar71xx/patches-4.9/621-MIPS-ath79-add-support-for-QCA956x-SoC.patch8
-rw-r--r--target/linux/ar71xx/patches-4.9/631-MIPS-ath79-wmac-enable-set-led-pin.patch2
-rw-r--r--target/linux/ar71xx/patches-4.9/640-MIPS-ath79-add-QCA955x-wmac-reset.patch4
4 files changed, 16 insertions, 25 deletions
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 03ff6c6aac..ed887cc500 100644
--- 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 e6eaa7123a..03bb9c31f6 100644
--- 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 29f7f3d0a2..a312217711 100644
--- 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 d7f4536ba3..bb315a1e65 100644
--- 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;