diff options
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/marvell,orion-pinctrl.txt | 91 | ||||
| -rw-r--r-- | drivers/pinctrl/mvebu/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/pinctrl/mvebu/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pinctrl/mvebu/pinctrl-orion.c | 261 |
4 files changed, 357 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/marvell,orion-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/marvell,orion-pinctrl.txt new file mode 100644 index 000000000000..27570a3a1741 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/marvell,orion-pinctrl.txt @@ -0,0 +1,91 @@ +* 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) diff --git a/drivers/pinctrl/mvebu/Kconfig b/drivers/pinctrl/mvebu/Kconfig index cc298fade93a..d6dd8358a6f6 100644 --- a/drivers/pinctrl/mvebu/Kconfig +++ b/drivers/pinctrl/mvebu/Kconfig @@ -30,4 +30,8 @@ config PINCTRL_ARMADA_XP bool select PINCTRL_MVEBU +config PINCTRL_ORION + bool + select PINCTRL_MVEBU + endif diff --git a/drivers/pinctrl/mvebu/Makefile b/drivers/pinctrl/mvebu/Makefile index bc1b9f14f539..a0818e96374b 100644 --- a/drivers/pinctrl/mvebu/Makefile +++ b/drivers/pinctrl/mvebu/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o obj-$(CONFIG_PINCTRL_ARMADA_375) += pinctrl-armada-375.o obj-$(CONFIG_PINCTRL_ARMADA_38X) += pinctrl-armada-38x.o obj-$(CONFIG_PINCTRL_ARMADA_XP) += pinctrl-armada-xp.o +obj-$(CONFIG_PINCTRL_ORION) += pinctrl-orion.o diff --git a/drivers/pinctrl/mvebu/pinctrl-orion.c b/drivers/pinctrl/mvebu/pinctrl-orion.c new file mode 100644 index 000000000000..dda1e7254e15 --- /dev/null +++ b/drivers/pinctrl/mvebu/pinctrl-orion.c @@ -0,0 +1,261 @@ +/* + * 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"); |
