diff mbox

[OpenWrt-Devel] rampips: Fix pinmux functions for MT7621

Message ID 1438183144-11471-1-git-send-email-sven@open-mesh.com
State Superseded
Headers show

Commit Message

Sven Eckelmann July 29, 2015, 3:19 p.m. UTC
The pinctrl-rt2880 code doesn't support multiple functions with the same
name. This will result in incorrect pinmux configuration.

The MT7621 uses 2 bit wide configuration of the sdhci, spi, mdio, pcie,
wdt, uart2 and uart3. But the code only changed a single bit for uart3,
uart2 and mdio. Also the order of uart2 and uart3 group was exchanged.

The spi "nand" settings was also reserved only 7 PINs instead of 8 as the
spi "spi" setting.

Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
---
 target/linux/ramips/dts/mt7621.dtsi                | 14 +++----
 .../0012-MIPS-ralink-add-MT7621-support.patch      | 45 +++++++++++++++-------
 2 files changed, 38 insertions(+), 21 deletions(-)

Comments

John Crispin July 30, 2015, 12:23 p.m. UTC | #1
On 29/07/2015 17:19, Sven Eckelmann wrote:
> The pinctrl-rt2880 code doesn't support multiple functions with the same
> name. This will result in incorrect pinmux configuration.
> 
> The MT7621 uses 2 bit wide configuration of the sdhci, spi, mdio, pcie,
> wdt, uart2 and uart3. But the code only changed a single bit for uart3,
> uart2 and mdio. Also the order of uart2 and uart3 group was exchanged.
> 
> The spi "nand" settings was also reserved only 7 PINs instead of 8 as the
> spi "spi" setting.
> 

i stumbled across this problem on mt7628/88 last few days. the pinctrl
code was written for a core with 1 bit / function and then grew with new
socs. i'll try to fix this in the pinctrl driver the next few days
rather than have redundant function names.

	John


> Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
> ---
>  target/linux/ramips/dts/mt7621.dtsi                | 14 +++----
>  .../0012-MIPS-ralink-add-MT7621-support.patch      | 45 +++++++++++++++-------
>  2 files changed, 38 insertions(+), 21 deletions(-)
> 
> diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
> index 53b215f40f10..f09ec3e5b694 100644
> --- a/target/linux/ramips/dts/mt7621.dtsi
> +++ b/target/linux/ramips/dts/mt7621.dtsi
> @@ -130,31 +130,31 @@
>  		uart1_pins: uart1 {
>  			uart1 {
>  				ralink,group = "uart1";
> -				ralink,function = "uart";
> +				ralink,function = "uart1";
>  			};
>  		};
>  		uart2_pins: uart2 {
>  			uart2 {
>  				ralink,group = "uart2";
> -				ralink,function = "uart";
> +				ralink,function = "uart2";
>  			};
>  		};
>  		uart3_pins: uart3 {
>  			uart3 {
>  				ralink,group = "uart3";
> -				ralink,function = "uart";
> +				ralink,function = "uart3";
>  			};
>  		};
>  		rgmii1_pins: rgmii1 {
>  			rgmii1 {
>  				ralink,group = "rgmii1";
> -				ralink,function = "rgmii";
> +				ralink,function = "rgmii1";
>  			};
>  		};
>  		rgmii2_pins: rgmii2 {
>  			rgmii2 {
>  				ralink,group = "rgmii2";
> -				ralink,function = "rgmii";
> +				ralink,function = "rgmii2";
>  			};
>  		};
>  		mdio_pins: mdio {
> @@ -172,11 +172,11 @@
>  		nand_pins: nand {
>  			spi-nand {
>  				ralink,group = "spi";
> -				ralink,function = "nand";
> +				ralink,function = "nand1";
>  			};
>  			sdhci-nand {
>  				ralink,group = "sdhci";
> -				ralink,function = "nand";
> +				ralink,function = "nand2";
>  			};
>  		};
>  		sdhci_pins: sdhci {
> diff --git a/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch b/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch
> index 771de12f171d..23d32681bf77 100644
> --- a/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch
> +++ b/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch
> @@ -520,7 +520,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
>  +}
>  --- /dev/null
>  +++ b/arch/mips/ralink/mt7621.c
> -@@ -0,0 +1,192 @@
> +@@ -0,0 +1,209 @@
>  +/*
>  + * This program is free software; you can redistribute it and/or modify it
>  + * under the terms of the GNU General Public License version 2 as published
> @@ -555,8 +555,12 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
>  +
>  +#define MT7621_GPIO_MODE_UART1		1
>  +#define MT7621_GPIO_MODE_I2C		2
> -+#define MT7621_GPIO_MODE_UART2		3
> -+#define MT7621_GPIO_MODE_UART3		5
> ++#define MT7621_GPIO_MODE_UART3_MASK	0x3
> ++#define MT7621_GPIO_MODE_UART3_SHIFT	3
> ++#define MT7621_GPIO_MODE_UART3_GPIO	1
> ++#define MT7621_GPIO_MODE_UART2_MASK	0x3
> ++#define MT7621_GPIO_MODE_UART2_SHIFT	5
> ++#define MT7621_GPIO_MODE_UART2_GPIO	1
>  +#define MT7621_GPIO_MODE_JTAG		7
>  +#define MT7621_GPIO_MODE_WDT_MASK	0x3
>  +#define MT7621_GPIO_MODE_WDT_SHIFT	8
> @@ -566,7 +570,9 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
>  +#define MT7621_GPIO_MODE_PCIE_MASK	0x3
>  +#define MT7621_GPIO_MODE_PCIE_SHIFT	10
>  +#define MT7621_GPIO_MODE_PCIE_GPIO	1
> -+#define MT7621_GPIO_MODE_MDIO		12
> ++#define MT7621_GPIO_MODE_MDIO_MASK	0x3
> ++#define MT7621_GPIO_MODE_MDIO_SHIFT	12
> ++#define MT7621_GPIO_MODE_MDIO_GPIO	1
>  +#define MT7621_GPIO_MODE_RGMII1		14
>  +#define MT7621_GPIO_MODE_RGMII2		15
>  +#define MT7621_GPIO_MODE_SPI_MASK	0x3
> @@ -576,10 +582,18 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
>  +#define MT7621_GPIO_MODE_SDHCI_SHIFT	18
>  +#define MT7621_GPIO_MODE_SDHCI_GPIO	1
>  +
> -+static struct rt2880_pmx_func uart1_grp[] =  { FUNC("uart", 0, 1, 2) };
> ++static struct rt2880_pmx_func uart1_grp[] =  { FUNC("uart1", 0, 1, 2) };
>  +static struct rt2880_pmx_func i2c_grp[] =  { FUNC("i2c", 0, 3, 2) };
> -+static struct rt2880_pmx_func uart3_grp[] = { FUNC("uart", 0, 5, 4) };
> -+static struct rt2880_pmx_func uart2_grp[] = { FUNC("uart", 0, 9, 4) };
> ++static struct rt2880_pmx_func uart3_grp[] = {
> ++	FUNC("uart3", 0, 5, 4),
> ++	FUNC("i2s", 2, 5, 4),
> ++	FUNC("spdif3", 3, 5, 4),
> ++};
> ++static struct rt2880_pmx_func uart2_grp[] = {
> ++	FUNC("uart2", 0, 9, 4),
> ++	FUNC("pcm", 2, 9, 4),
> ++	FUNC("spdif2", 3, 9, 4),
> ++};
>  +static struct rt2880_pmx_func jtag_grp[] = { FUNC("jtag", 0, 13, 5) };
>  +static struct rt2880_pmx_func wdt_grp[] = {
>  +	FUNC("wdt rst", 0, 18, 1),
> @@ -590,28 +604,31 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
>  +	FUNC("pcie refclk", MT7621_GPIO_MODE_PCIE_REF, 19, 1)
>  +};
>  +static struct rt2880_pmx_func mdio_grp[] = { FUNC("mdio", 0, 20, 2) };
> -+static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii", 0, 22, 12) };
> ++static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 22, 12) };
>  +static struct rt2880_pmx_func spi_grp[] = {
>  +	FUNC("spi", 0, 34, 7),
> -+	FUNC("nand", 2, 34, 8),
> ++	FUNC("nand1", 2, 34, 7),
>  +};
>  +static struct rt2880_pmx_func sdhci_grp[] = {
>  +	FUNC("sdhci", 0, 41, 8),
> -+	FUNC("nand", 2, 41, 8),
> ++	FUNC("nand2", 2, 41, 8),
>  +};
> -+static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii", 0, 49, 12) };
> ++static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 49, 12) };
>  +
>  +static struct rt2880_pmx_group mt7621_pinmux_data[] = {
>  +	GRP("uart1", uart1_grp, 1, MT7621_GPIO_MODE_UART1),
>  +	GRP("i2c", i2c_grp, 1, MT7621_GPIO_MODE_I2C),
> -+	GRP("uart3", uart2_grp, 1, MT7621_GPIO_MODE_UART2),
> -+	GRP("uart2", uart3_grp, 1, MT7621_GPIO_MODE_UART3),
> ++	GRP_G("uart3", uart3_grp, MT7621_GPIO_MODE_UART3_MASK,
> ++		MT7621_GPIO_MODE_UART3_GPIO, MT7621_GPIO_MODE_UART3_SHIFT),
> ++	GRP_G("uart2", uart2_grp, MT7621_GPIO_MODE_UART2_MASK,
> ++		MT7621_GPIO_MODE_UART2_GPIO, MT7621_GPIO_MODE_UART2_SHIFT),
>  +	GRP("jtag", jtag_grp, 1, MT7621_GPIO_MODE_JTAG),
>  +	GRP_G("wdt", wdt_grp, MT7621_GPIO_MODE_WDT_MASK,
>  +		MT7621_GPIO_MODE_WDT_GPIO, MT7621_GPIO_MODE_WDT_SHIFT),
>  +	GRP_G("pcie", pcie_rst_grp, MT7621_GPIO_MODE_PCIE_MASK,
>  +		MT7621_GPIO_MODE_PCIE_GPIO, MT7621_GPIO_MODE_PCIE_SHIFT),
> -+	GRP("mdio", mdio_grp, 1, MT7621_GPIO_MODE_MDIO),
> ++	GRP_G("mdio", mdio_grp, MT7621_GPIO_MODE_MDIO_MASK,
> ++		MT7621_GPIO_MODE_MDIO_GPIO, MT7621_GPIO_MODE_MDIO_SHIFT),
>  +	GRP("rgmii2", rgmii2_grp, 1, MT7621_GPIO_MODE_RGMII2),
>  +	GRP_G("spi", spi_grp, MT7621_GPIO_MODE_SPI_MASK,
>  +		MT7621_GPIO_MODE_SPI_GPIO, MT7621_GPIO_MODE_SPI_SHIFT),
>
Sven Eckelmann July 31, 2015, 7:31 a.m. UTC | #2
On Thursday 30 July 2015 14:23:06 John Crispin wrote:
> 
> On 29/07/2015 17:19, Sven Eckelmann wrote:
> > The pinctrl-rt2880 code doesn't support multiple functions with the same
> > name. This will result in incorrect pinmux configuration.
> > 
> > The MT7621 uses 2 bit wide configuration of the sdhci, spi, mdio, pcie,
> > wdt, uart2 and uart3. But the code only changed a single bit for uart3,
> > uart2 and mdio. Also the order of uart2 and uart3 group was exchanged.
> > 
> > The spi "nand" settings was also reserved only 7 PINs instead of 8 as the
> > spi "spi" setting.
> > 
> 
> i stumbled across this problem on mt7628/88 last few days. the pinctrl
> code was written for a core with 1 bit / function and then grew with new
> socs. i'll try to fix this in the pinctrl driver the next few days
> rather than have redundant function names.

What about the other problems like wrong settings width, wrong settings
position and missing settings? Should I resend them?

Btw. keep in mind that the functions have conflicting settings
(different PINs).

Kind regards,
	Sven
Sven Eckelmann July 31, 2015, 9:23 a.m. UTC | #3
On Friday 31 July 2015 10:33:59 John Crispin wrote:
[...]
> > What about the other problems like wrong settings width, wrong settings
> > position and missing settings? Should I resend them?
> 
> which patch exactly ?

I have now submitted the patch but this time split into separate
patches [1,2,3] (these are the ones with the "other problems"). The
last one [4] is the patch which you want to drop and instead modify
the pinctrl-rt2880.

Kind regards,
	Sven

[1] http://patchwork.ozlabs.org/patch/502439/
[2] http://patchwork.ozlabs.org/patch/502440/
[3] http://patchwork.ozlabs.org/patch/502442/
[4] http://patchwork.ozlabs.org/patch/502444/
John Crispin July 31, 2015, 9:29 a.m. UTC | #4
On 31/07/2015 11:23, Sven Eckelmann wrote:
> On Friday 31 July 2015 10:33:59 John Crispin wrote:
> [...]
>>> What about the other problems like wrong settings width, wrong settings
>>> position and missing settings? Should I resend them?
>>
>> which patch exactly ?
> 
> I have now submitted the patch but this time split into separate
> patches [1,2,3] (these are the ones with the "other problems"). The
> last one [4] is the patch which you want to drop and instead modify
> the pinctrl-rt2880.
> 

thanks, i'll add them to my tree in a sec and push them later on with a
pile of other mt7628 patches which i am testing just now.

> Kind regards,
> 	Sven
> 
> [1] http://patchwork.ozlabs.org/patch/502439/
> [2] http://patchwork.ozlabs.org/patch/502440/
> [3] http://patchwork.ozlabs.org/patch/502442/
> [4] http://patchwork.ozlabs.org/patch/502444/
> 
> 
> 
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel@lists.openwrt.org
> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>
diff mbox

Patch

diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
index 53b215f40f10..f09ec3e5b694 100644
--- a/target/linux/ramips/dts/mt7621.dtsi
+++ b/target/linux/ramips/dts/mt7621.dtsi
@@ -130,31 +130,31 @@ 
 		uart1_pins: uart1 {
 			uart1 {
 				ralink,group = "uart1";
-				ralink,function = "uart";
+				ralink,function = "uart1";
 			};
 		};
 		uart2_pins: uart2 {
 			uart2 {
 				ralink,group = "uart2";
-				ralink,function = "uart";
+				ralink,function = "uart2";
 			};
 		};
 		uart3_pins: uart3 {
 			uart3 {
 				ralink,group = "uart3";
-				ralink,function = "uart";
+				ralink,function = "uart3";
 			};
 		};
 		rgmii1_pins: rgmii1 {
 			rgmii1 {
 				ralink,group = "rgmii1";
-				ralink,function = "rgmii";
+				ralink,function = "rgmii1";
 			};
 		};
 		rgmii2_pins: rgmii2 {
 			rgmii2 {
 				ralink,group = "rgmii2";
-				ralink,function = "rgmii";
+				ralink,function = "rgmii2";
 			};
 		};
 		mdio_pins: mdio {
@@ -172,11 +172,11 @@ 
 		nand_pins: nand {
 			spi-nand {
 				ralink,group = "spi";
-				ralink,function = "nand";
+				ralink,function = "nand1";
 			};
 			sdhci-nand {
 				ralink,group = "sdhci";
-				ralink,function = "nand";
+				ralink,function = "nand2";
 			};
 		};
 		sdhci_pins: sdhci {
diff --git a/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch b/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch
index 771de12f171d..23d32681bf77 100644
--- a/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch
+++ b/target/linux/ramips/patches-3.18/0012-MIPS-ralink-add-MT7621-support.patch
@@ -520,7 +520,7 @@  Signed-off-by: John Crispin <blogic@openwrt.org>
 +}
 --- /dev/null
 +++ b/arch/mips/ralink/mt7621.c
-@@ -0,0 +1,192 @@
+@@ -0,0 +1,209 @@
 +/*
 + * This program is free software; you can redistribute it and/or modify it
 + * under the terms of the GNU General Public License version 2 as published
@@ -555,8 +555,12 @@  Signed-off-by: John Crispin <blogic@openwrt.org>
 +
 +#define MT7621_GPIO_MODE_UART1		1
 +#define MT7621_GPIO_MODE_I2C		2
-+#define MT7621_GPIO_MODE_UART2		3
-+#define MT7621_GPIO_MODE_UART3		5
++#define MT7621_GPIO_MODE_UART3_MASK	0x3
++#define MT7621_GPIO_MODE_UART3_SHIFT	3
++#define MT7621_GPIO_MODE_UART3_GPIO	1
++#define MT7621_GPIO_MODE_UART2_MASK	0x3
++#define MT7621_GPIO_MODE_UART2_SHIFT	5
++#define MT7621_GPIO_MODE_UART2_GPIO	1
 +#define MT7621_GPIO_MODE_JTAG		7
 +#define MT7621_GPIO_MODE_WDT_MASK	0x3
 +#define MT7621_GPIO_MODE_WDT_SHIFT	8
@@ -566,7 +570,9 @@  Signed-off-by: John Crispin <blogic@openwrt.org>
 +#define MT7621_GPIO_MODE_PCIE_MASK	0x3
 +#define MT7621_GPIO_MODE_PCIE_SHIFT	10
 +#define MT7621_GPIO_MODE_PCIE_GPIO	1
-+#define MT7621_GPIO_MODE_MDIO		12
++#define MT7621_GPIO_MODE_MDIO_MASK	0x3
++#define MT7621_GPIO_MODE_MDIO_SHIFT	12
++#define MT7621_GPIO_MODE_MDIO_GPIO	1
 +#define MT7621_GPIO_MODE_RGMII1		14
 +#define MT7621_GPIO_MODE_RGMII2		15
 +#define MT7621_GPIO_MODE_SPI_MASK	0x3
@@ -576,10 +582,18 @@  Signed-off-by: John Crispin <blogic@openwrt.org>
 +#define MT7621_GPIO_MODE_SDHCI_SHIFT	18
 +#define MT7621_GPIO_MODE_SDHCI_GPIO	1
 +
-+static struct rt2880_pmx_func uart1_grp[] =  { FUNC("uart", 0, 1, 2) };
++static struct rt2880_pmx_func uart1_grp[] =  { FUNC("uart1", 0, 1, 2) };
 +static struct rt2880_pmx_func i2c_grp[] =  { FUNC("i2c", 0, 3, 2) };
-+static struct rt2880_pmx_func uart3_grp[] = { FUNC("uart", 0, 5, 4) };
-+static struct rt2880_pmx_func uart2_grp[] = { FUNC("uart", 0, 9, 4) };
++static struct rt2880_pmx_func uart3_grp[] = {
++	FUNC("uart3", 0, 5, 4),
++	FUNC("i2s", 2, 5, 4),
++	FUNC("spdif3", 3, 5, 4),
++};
++static struct rt2880_pmx_func uart2_grp[] = {
++	FUNC("uart2", 0, 9, 4),
++	FUNC("pcm", 2, 9, 4),
++	FUNC("spdif2", 3, 9, 4),
++};
 +static struct rt2880_pmx_func jtag_grp[] = { FUNC("jtag", 0, 13, 5) };
 +static struct rt2880_pmx_func wdt_grp[] = {
 +	FUNC("wdt rst", 0, 18, 1),
@@ -590,28 +604,31 @@  Signed-off-by: John Crispin <blogic@openwrt.org>
 +	FUNC("pcie refclk", MT7621_GPIO_MODE_PCIE_REF, 19, 1)
 +};
 +static struct rt2880_pmx_func mdio_grp[] = { FUNC("mdio", 0, 20, 2) };
-+static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii", 0, 22, 12) };
++static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 22, 12) };
 +static struct rt2880_pmx_func spi_grp[] = {
 +	FUNC("spi", 0, 34, 7),
-+	FUNC("nand", 2, 34, 8),
++	FUNC("nand1", 2, 34, 7),
 +};
 +static struct rt2880_pmx_func sdhci_grp[] = {
 +	FUNC("sdhci", 0, 41, 8),
-+	FUNC("nand", 2, 41, 8),
++	FUNC("nand2", 2, 41, 8),
 +};
-+static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii", 0, 49, 12) };
++static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 49, 12) };
 +
 +static struct rt2880_pmx_group mt7621_pinmux_data[] = {
 +	GRP("uart1", uart1_grp, 1, MT7621_GPIO_MODE_UART1),
 +	GRP("i2c", i2c_grp, 1, MT7621_GPIO_MODE_I2C),
-+	GRP("uart3", uart2_grp, 1, MT7621_GPIO_MODE_UART2),
-+	GRP("uart2", uart3_grp, 1, MT7621_GPIO_MODE_UART3),
++	GRP_G("uart3", uart3_grp, MT7621_GPIO_MODE_UART3_MASK,
++		MT7621_GPIO_MODE_UART3_GPIO, MT7621_GPIO_MODE_UART3_SHIFT),
++	GRP_G("uart2", uart2_grp, MT7621_GPIO_MODE_UART2_MASK,
++		MT7621_GPIO_MODE_UART2_GPIO, MT7621_GPIO_MODE_UART2_SHIFT),
 +	GRP("jtag", jtag_grp, 1, MT7621_GPIO_MODE_JTAG),
 +	GRP_G("wdt", wdt_grp, MT7621_GPIO_MODE_WDT_MASK,
 +		MT7621_GPIO_MODE_WDT_GPIO, MT7621_GPIO_MODE_WDT_SHIFT),
 +	GRP_G("pcie", pcie_rst_grp, MT7621_GPIO_MODE_PCIE_MASK,
 +		MT7621_GPIO_MODE_PCIE_GPIO, MT7621_GPIO_MODE_PCIE_SHIFT),
-+	GRP("mdio", mdio_grp, 1, MT7621_GPIO_MODE_MDIO),
++	GRP_G("mdio", mdio_grp, MT7621_GPIO_MODE_MDIO_MASK,
++		MT7621_GPIO_MODE_MDIO_GPIO, MT7621_GPIO_MODE_MDIO_SHIFT),
 +	GRP("rgmii2", rgmii2_grp, 1, MT7621_GPIO_MODE_RGMII2),
 +	GRP_G("spi", spi_grp, MT7621_GPIO_MODE_SPI_MASK,
 +		MT7621_GPIO_MODE_SPI_GPIO, MT7621_GPIO_MODE_SPI_SHIFT),