[OpenWrt-Devel] [PATCH] rampips: Fix pinmux functions for MT7621
John Crispin
blogic at openwrt.org
Thu Jul 30 08:23:06 EDT 2015
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 at 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 at 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 at 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 at 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 at 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 at 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),
>
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