--- /dev/null
+* Marvell Orion SoC pinctrl driver for mpp
+
+Please refer to marvell,mvebu-pinctrl.txt in this directory for common binding
+part and usage.
+
+Required properties:
+- compatible: "marvell,88f5181l-pinctrl", "marvell,88f5182-pinctrl",
+ "marvell,88f5281-pinctrl"
+
+- reg: two register areas, the first one describing the first two
+ contiguous MPP registers, and the second one describing the single
+ final MPP register, separated from the previous one.
+
+Available mpp pins/groups and functions:
+Note: brackets (x) are not part of the mpp name for marvell,function and given
+only for more detailed description in this document.
+
+* Marvell Orion 88f5181l
+
+name pins functions
+================================================================================
+mpp0 0 pcie(rstout), pci(req2), gpio
+mpp1 1 gpio, pci(gnt2)
+mpp2 2 gpio, pci(req3), pci-1(pme)
+mpp3 3 gpio, pci(gnt3)
+mpp4 4 gpio, pci(req4)
+mpp5 5 gpio, pci(gnt4)
+mpp6 6 gpio, pci(req5), pci-1(clk)
+mpp7 7 gpio, pci(gnt5), pci-1(clk)
+mpp8 8 gpio, ge(col)
+mpp9 9 gpio, ge(rxerr)
+mpp10 10 gpio, ge(crs)
+mpp11 11 gpio, ge(txerr)
+mpp12 12 gpio, ge(txd4)
+mpp13 13 gpio, ge(txd5)
+mpp14 14 gpio, ge(txd6)
+mpp15 15 gpio, ge(txd7)
+mpp16 16 ge(rxd4)
+mpp17 17 ge(rxd5)
+mpp18 18 ge(rxd6)
+mpp19 19 ge(rxd7)
+
+* Marvell Orion 88f5182
+
+name pins functions
+================================================================================
+mpp0 0 pcie(rstout), pci(req2), gpio
+mpp1 1 gpio, pci(gnt2)
+mpp2 2 gpio, pci(req3), pci-1(pme)
+mpp3 3 gpio, pci(gnt3)
+mpp4 4 gpio, pci(req4), bootnand(re), sata0(prsnt)
+mpp5 5 gpio, pci(gnt4), bootnand(we), sata1(prsnt)
+mpp6 6 gpio, pci(req5), nand(re0), sata0(act)
+mpp7 7 gpio, pci(gnt5), nand(we0), sata1(act)
+mpp8 8 gpio, ge(col)
+mpp9 9 gpio, ge(rxerr)
+mpp10 10 gpio, ge(crs)
+mpp11 11 gpio, ge(txerr)
+mpp12 12 gpio, ge(txd4), nand(re1), sata0(ledprsnt)
+mpp13 13 gpio, ge(txd5), nand(we1), sata1(ledprsnt)
+mpp14 14 gpio, ge(txd6), nand(re2), sata0(ledact)
+mpp15 15 gpio, ge(txd7), nand(we2), sata1(ledact)
+mpp16 16 uart1(rxd), ge(rxd4), gpio
+mpp17 17 uart1(txd), ge(rxd5), gpio
+mpp18 18 uart1(cts), ge(rxd6), gpio
+mpp19 19 uart1(rts), ge(rxd7), gpio
+
+* Marvell Orion 88f5281
+
+name pins functions
+================================================================================
+mpp0 0 pcie(rstout), pci(req2), gpio
+mpp1 1 gpio, pci(gnt2)
+mpp2 2 gpio, pci(req3), pci(pme)
+mpp3 3 gpio, pci(gnt3)
+mpp4 4 gpio, pci(req4), bootnand(re)
+mpp5 5 gpio, pci(gnt4), bootnand(we)
+mpp6 6 gpio, pci(req5), nand(re0)
+mpp7 7 gpio, pci(gnt5), nand(we0)
+mpp8 8 gpio, ge(col)
+mpp9 9 gpio, ge(rxerr)
+mpp10 10 gpio, ge(crs)
+mpp11 11 gpio, ge(txerr)
+mpp12 12 gpio, ge(txd4), nand(re1)
+mpp13 13 gpio, ge(txd5), nand(we1)
+mpp14 14 gpio, ge(txd6), nand(re2)
+mpp15 15 gpio, ge(txd7), nand(we2)
+mpp16 16 uart1(rxd), ge(rxd4)
+mpp17 17 uart1(txd), ge(rxd5)
+mpp18 18 uart1(cts), ge(rxd6)
+mpp19 19 uart1(rts), ge(rxd7)
--- /dev/null
+/*
+ * Marvell Orion pinctrl driver based on mvebu pinctrl core
+ *
+ * Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The first 16 MPP pins on Orion are easy to handle: they are
+ * configured through 2 consecutive registers, located at the base
+ * address of the MPP device.
+ *
+ * However the last 4 MPP pins are handled by a register at offset
+ * 0x50 from the base address, so it is not consecutive with the first
+ * two registers.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-mvebu.h"
+
+static void __iomem *mpp_base;
+static void __iomem *high_mpp_base;
+
+static int orion_mpp_ctrl_get(unsigned pid, unsigned long *config)
+{
+ unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
+
+ if (pid < 16) {
+ unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
+ *config = (readl(mpp_base + off) >> shift) & MVEBU_MPP_MASK;
+ }
+ else {
+ *config = (readl(high_mpp_base) >> shift) & MVEBU_MPP_MASK;
+ }
+
+ return 0;
+}
+
+static int orion_mpp_ctrl_set(unsigned pid, unsigned long config)
+{
+ unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
+
+ if (pid < 16) {
+ unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
+ u32 reg = readl(mpp_base + off) & ~(MVEBU_MPP_MASK << shift);
+ writel(reg | (config << shift), mpp_base + off);
+ }
+ else {
+ u32 reg = readl(high_mpp_base) & ~(MVEBU_MPP_MASK << shift);
+ writel(reg | (config << shift), high_mpp_base);
+ }
+
+ return 0;
+}
+
+#define V(f5181l, f5182, f5281) \
+ ((f5181l << 0) | (f5182 << 1) | (f5281 << 2))
+
+enum orion_variant {
+ V_5181L = V(1, 0, 0),
+ V_5182 = V(0, 1, 0),
+ V_5281 = V(0, 0, 1),
+ V_ALL = V(1, 1, 1),
+};
+
+static struct mvebu_mpp_mode orion_mpp_modes[] = {
+ MPP_MODE(0,
+ MPP_VAR_FUNCTION(0x0, "pcie", "rstout", V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "req2", V_ALL),
+ MPP_VAR_FUNCTION(0x3, "gpio", NULL, V_ALL)),
+ MPP_MODE(1,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "gnt2", V_ALL)),
+ MPP_MODE(2,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "req3", V_ALL),
+ MPP_VAR_FUNCTION(0x3, "pci-1", "pme", V_ALL)),
+ MPP_MODE(3,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "gnt3", V_ALL)),
+ MPP_MODE(4,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "req4", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "bootnand", "re", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "sata0", "prsnt", V_5182)),
+ MPP_MODE(5,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "gnt4", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "bootnand", "we", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "sata1", "prsnt", V_5182)),
+ MPP_MODE(6,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "req5", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "nand", "re0", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "pci-1", "clk", V_5181L),
+ MPP_VAR_FUNCTION(0x5, "sata0", "act", V_5182)),
+ MPP_MODE(7,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x2, "pci", "gnt5", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "nand", "we0", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "pci-1", "clk", V_5181L),
+ MPP_VAR_FUNCTION(0x5, "sata1", "act", V_5182)),
+ MPP_MODE(8,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "col", V_ALL)),
+ MPP_MODE(9,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "rxerr", V_ALL)),
+ MPP_MODE(10,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "crs", V_ALL)),
+ MPP_MODE(11,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "txerr", V_ALL)),
+ MPP_MODE(12,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "txd4", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "nand", "re1", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "sata0", "ledprsnt", V_5182)),
+ MPP_MODE(13,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "txd5", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "nand", "we1", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "sata1", "ledprsnt", V_5182)),
+ MPP_MODE(14,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "txd6", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "nand", "re2", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "sata0", "ledact", V_5182)),
+ MPP_MODE(15,
+ MPP_VAR_FUNCTION(0x0, "gpio", NULL, V_ALL),
+ MPP_VAR_FUNCTION(0x1, "ge", "txd7", V_ALL),
+ MPP_VAR_FUNCTION(0x4, "nand", "we2", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x5, "sata1", "ledact", V_5182)),
+ MPP_MODE(16,
+ MPP_VAR_FUNCTION(0x0, "uart1", "rxd", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x1, "ge", "rxd4", V_ALL),
+ MPP_VAR_FUNCTION(0x5, "gpio", NULL, V_5182)),
+ MPP_MODE(17,
+ MPP_VAR_FUNCTION(0x0, "uart1", "txd", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x1, "ge", "rxd5", V_ALL),
+ MPP_VAR_FUNCTION(0x5, "gpio", NULL, V_5182)),
+ MPP_MODE(18,
+ MPP_VAR_FUNCTION(0x0, "uart1", "cts", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x1, "ge", "rxd6", V_ALL),
+ MPP_VAR_FUNCTION(0x5, "gpio", NULL, V_5182)),
+ MPP_MODE(19,
+ MPP_VAR_FUNCTION(0x0, "uart1", "rts", V_5182 | V_5281),
+ MPP_VAR_FUNCTION(0x1, "ge", "rxd7", V_ALL),
+ MPP_VAR_FUNCTION(0x5, "gpio", NULL, V_5182)),
+};
+
+static struct mvebu_mpp_ctrl orion_mpp_controls[] = {
+ MPP_FUNC_CTRL(0, 19, NULL, orion_mpp_ctrl),
+};
+
+static struct pinctrl_gpio_range mv88f5181l_gpio_ranges[] = {
+ MPP_GPIO_RANGE(0, 0, 0, 16),
+};
+
+static struct pinctrl_gpio_range mv88f5182_gpio_ranges[] = {
+ MPP_GPIO_RANGE(0, 0, 0, 19),
+};
+
+static struct pinctrl_gpio_range mv88f5281_gpio_ranges[] = {
+ MPP_GPIO_RANGE(0, 0, 0, 16),
+};
+
+static struct mvebu_pinctrl_soc_info mv88f5181l_info = {
+ .variant = V_5181L,
+ .controls = orion_mpp_controls,
+ .ncontrols = ARRAY_SIZE(orion_mpp_controls),
+ .modes = orion_mpp_modes,
+ .nmodes = ARRAY_SIZE(orion_mpp_modes),
+ .gpioranges = mv88f5181l_gpio_ranges,
+ .ngpioranges = ARRAY_SIZE(mv88f5181l_gpio_ranges),
+};
+
+static struct mvebu_pinctrl_soc_info mv88f5182_info = {
+ .variant = V_5182,
+ .controls = orion_mpp_controls,
+ .ncontrols = ARRAY_SIZE(orion_mpp_controls),
+ .modes = orion_mpp_modes,
+ .nmodes = ARRAY_SIZE(orion_mpp_modes),
+ .gpioranges = mv88f5182_gpio_ranges,
+ .ngpioranges = ARRAY_SIZE(mv88f5182_gpio_ranges),
+};
+
+static struct mvebu_pinctrl_soc_info mv88f5281_info = {
+ .variant = V_5281,
+ .controls = orion_mpp_controls,
+ .ncontrols = ARRAY_SIZE(orion_mpp_controls),
+ .modes = orion_mpp_modes,
+ .nmodes = ARRAY_SIZE(orion_mpp_modes),
+ .gpioranges = mv88f5281_gpio_ranges,
+ .ngpioranges = ARRAY_SIZE(mv88f5281_gpio_ranges),
+};
+
+/*
+ * There are multiple variants of the Orion SoCs, but in terms of pin
+ * muxing, they are identical.
+ */
+static struct of_device_id orion_pinctrl_of_match[] = {
+ { .compatible = "marvell,88f5181l-pinctrl", .data = &mv88f5181l_info },
+ { .compatible = "marvell,88f5182-pinctrl", .data = &mv88f5182_info },
+ { .compatible = "marvell,88f5281-pinctrl", .data = &mv88f5281_info },
+ { }
+};
+
+static int orion_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match =
+ of_match_device(orion_pinctrl_of_match, &pdev->dev);
+ struct resource *res;
+
+ pdev->dev.platform_data = (void*)match->data;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mpp_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mpp_base))
+ return PTR_ERR(mpp_base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ high_mpp_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(high_mpp_base))
+ return PTR_ERR(high_mpp_base);
+
+ return mvebu_pinctrl_probe(pdev);
+}
+
+static int orion_pinctrl_remove(struct platform_device *pdev)
+{
+ return mvebu_pinctrl_remove(pdev);
+}
+
+static struct platform_driver orion_pinctrl_driver = {
+ .driver = {
+ .name = "orion-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(orion_pinctrl_of_match),
+ },
+ .probe = orion_pinctrl_probe,
+ .remove = orion_pinctrl_remove,
+};
+
+module_platform_driver(orion_pinctrl_driver);
+
+MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
+MODULE_DESCRIPTION("Marvell Orion pinctrl driver");
+MODULE_LICENSE("GPL v2");
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff