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authorSergio Paracuellos <sergio.paracuellos@gmail.com>2021-06-04 14:51:55 +0300
committerLinus Walleij <linus.walleij@linaro.org>2021-06-07 10:17:47 +0300
commite98dd3db96f710b5545f313c9f364a306bb35c86 (patch)
treeb54931fa5bdb78c2ef93b233e6d5cacfa0b392b9 /drivers/pinctrl
parent276e552e081c2db115319130511b55397d9695bd (diff)
downloadlinux-e98dd3db96f710b5545f313c9f364a306bb35c86.tar.xz
pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file
Move all related code for SoC MT7621 into a new driver located in 'pinctrl-mt7621.c' source file. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20210604115159.8834-3-sergio.paracuellos@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/ralink/Kconfig5
-rw-r--r--drivers/pinctrl/ralink/Makefile2
-rw-r--r--drivers/pinctrl/ralink/pinctrl-mt7621.c116
3 files changed, 123 insertions, 0 deletions
diff --git a/drivers/pinctrl/ralink/Kconfig b/drivers/pinctrl/ralink/Kconfig
index 8c5f6341477f..ef8990a4c1eb 100644
--- a/drivers/pinctrl/ralink/Kconfig
+++ b/drivers/pinctrl/ralink/Kconfig
@@ -11,4 +11,9 @@ config PINCTRL_RT2880
select PINMUX
select GENERIC_PINCONF
+config PINCTRL_MT7621
+ bool "mt7621 pinctrl driver for RALINK/Mediatek SOCs"
+ depends on RALINK && SOC_MT7621
+ select PINCTRL_RT2880
+
endmenu
diff --git a/drivers/pinctrl/ralink/Makefile b/drivers/pinctrl/ralink/Makefile
index 242554298d07..470855290ff6 100644
--- a/drivers/pinctrl/ralink/Makefile
+++ b/drivers/pinctrl/ralink/Makefile
@@ -1,2 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_PINCTRL_RT2880) += pinctrl-rt2880.o
+
+obj-$(CONFIG_PINCTRL_MT7621) += pinctrl-mt7621.o
diff --git a/drivers/pinctrl/ralink/pinctrl-mt7621.c b/drivers/pinctrl/ralink/pinctrl-mt7621.c
new file mode 100644
index 000000000000..7d96144c474e
--- /dev/null
+++ b/drivers/pinctrl/ralink/pinctrl-mt7621.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include "pinmux.h"
+
+#define MT7621_GPIO_MODE_UART1 1
+#define MT7621_GPIO_MODE_I2C 2
+#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
+#define MT7621_GPIO_MODE_WDT_GPIO 1
+#define MT7621_GPIO_MODE_PCIE_RST 0
+#define MT7621_GPIO_MODE_PCIE_REF 2
+#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_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
+#define MT7621_GPIO_MODE_SPI_SHIFT 16
+#define MT7621_GPIO_MODE_SPI_GPIO 1
+#define MT7621_GPIO_MODE_SDHCI_MASK 0x3
+#define MT7621_GPIO_MODE_SDHCI_SHIFT 18
+#define MT7621_GPIO_MODE_SDHCI_GPIO 1
+
+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("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),
+ FUNC("wdt refclk", 2, 18, 1),
+};
+static struct rt2880_pmx_func pcie_rst_grp[] = {
+ FUNC("pcie rst", MT7621_GPIO_MODE_PCIE_RST, 19, 1),
+ 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("rgmii2", 0, 22, 12) };
+static struct rt2880_pmx_func spi_grp[] = {
+ FUNC("spi", 0, 34, 7),
+ FUNC("nand1", 2, 34, 7),
+};
+static struct rt2880_pmx_func sdhci_grp[] = {
+ FUNC("sdhci", 0, 41, 8),
+ FUNC("nand2", 2, 41, 8),
+};
+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_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_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),
+ GRP_G("sdhci", sdhci_grp, MT7621_GPIO_MODE_SDHCI_MASK,
+ MT7621_GPIO_MODE_SDHCI_GPIO, MT7621_GPIO_MODE_SDHCI_SHIFT),
+ GRP("rgmii1", rgmii1_grp, 1, MT7621_GPIO_MODE_RGMII1),
+ { 0 }
+};
+
+static int mt7621_pinmux_probe(struct platform_device *pdev)
+{
+ return rt2880_pinmux_init(pdev, mt7621_pinmux_data);
+}
+
+static const struct of_device_id mt7621_pinmux_match[] = {
+ { .compatible = "ralink,rt2880-pinmux" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, mt7621_pinmux_match);
+
+static struct platform_driver mt7621_pinmux_driver = {
+ .probe = mt7621_pinmux_probe,
+ .driver = {
+ .name = "rt2880-pinmux",
+ .of_match_table = mt7621_pinmux_match,
+ },
+};
+
+static int __init mt7621_pinmux_init(void)
+{
+ return platform_driver_register(&mt7621_pinmux_driver);
+}
+core_initcall_sync(mt7621_pinmux_init);