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u-boot/drivers/pinctrl/mvebu/pinctrl-armada-38x.c

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mvebu: pinctrl: Add Armada 38x driver This new Armada 38x driver is based on Linux kernel driver. It can set any pin to any valid function specified in DT like Linux kernel, it provides support for 'pinmux status -a' command and also for pinctrl_gpio_request(). Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
2022-07-25 11:56:09 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later
// (C) 2022 Pali Rohár <pali@kernel.org>
#include <common.h>
#include <config.h>
#include <dm.h>
#include <dm/devres.h>
#include <dm/lists.h>
#include <dm/pinctrl.h>
#include <dm/root.h>
#include <errno.h>
#include <asm/io.h>
struct mvebu_mpp_ctrl_setting {
const char *name;
const char *subname;
u8 val;
u8 variant;
};
struct mvebu_mpp_mode {
const char *name;
size_t nsettings;
struct mvebu_mpp_ctrl_setting *settings;
};
#define MPP_MODE(_name, ...) \
{ \
.name = _name, \
.nsettings = ARRAY_SIZE(( \
(struct mvebu_mpp_ctrl_setting[]) \
{ __VA_ARGS__ })), \
.settings = (struct mvebu_mpp_ctrl_setting[]){ \
__VA_ARGS__ }, \
}
#define MPP_VAR_FUNCTION(_val, _name, _subname, _mask) \
{ \
.val = _val, \
.name = _name, \
.subname = _subname, \
.variant = _mask, \
}
#define MVEBU_MPPS_PER_REG 8
#define MVEBU_MPP_BITS 4
#define MVEBU_MPP_MASK 0xf
enum {
V_88F6810 = BIT(0),
V_88F6820 = BIT(1),
V_88F6828 = BIT(2),
V_88F6810_PLUS = (V_88F6810 | V_88F6820 | V_88F6828),
V_88F6820_PLUS = (V_88F6820 | V_88F6828),
};
static struct mvebu_mpp_mode armada_38x_mpp_modes[] = {
MPP_MODE("mpp0",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ua0", "rxd", V_88F6810_PLUS)),
MPP_MODE("mpp1",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ua0", "txd", V_88F6810_PLUS)),
MPP_MODE("mpp2",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "i2c0", "sck", V_88F6810_PLUS)),
MPP_MODE("mpp3",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "i2c0", "sda", V_88F6810_PLUS)),
MPP_MODE("mpp4",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge", "mdc", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ua1", "txd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua0", "rts", V_88F6810_PLUS)),
MPP_MODE("mpp5",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge", "mdio", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ua1", "rxd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua0", "cts", V_88F6810_PLUS)),
MPP_MODE("mpp6",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txclkout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge0", "crs", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "cs3", V_88F6810_PLUS)),
MPP_MODE("mpp7",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txd0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad9", V_88F6810_PLUS)),
MPP_MODE("mpp8",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txd1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad10", V_88F6810_PLUS)),
MPP_MODE("mpp9",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txd2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad11", V_88F6810_PLUS)),
MPP_MODE("mpp10",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txd3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad12", V_88F6810_PLUS)),
MPP_MODE("mpp11",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txctl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad13", V_88F6810_PLUS)),
MPP_MODE("mpp12",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxd0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "cs1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad14", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "pcie3", "clkreq", V_88F6810_PLUS)),
MPP_MODE("mpp13",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxd1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "pcie0", "clkreq", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "pcie1", "clkreq", V_88F6820_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "cs2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad15", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "pcie2", "clkreq", V_88F6810_PLUS)),
MPP_MODE("mpp14",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxd2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ptp", "clk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "dram", "vttctrl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "cs3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "we1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "pcie3", "clkreq", V_88F6810_PLUS)),
MPP_MODE("mpp15",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxd3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge", "mdc slave", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "mosi", V_88F6810_PLUS)),
MPP_MODE("mpp16",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxctl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge", "mdio slave", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "dram", "deccerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "miso", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "pcie0", "clkreq", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "pcie1", "clkreq", V_88F6820_PLUS)),
MPP_MODE("mpp17",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ptp", "clk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua1", "rxd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "sck", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sata1", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "sata0", "prsnt", V_88F6810_PLUS)),
MPP_MODE("mpp18",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "rxerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ptp", "trig", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua1", "txd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi0", "cs0", V_88F6810_PLUS)),
MPP_MODE("mpp19",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "col", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ptp", "evreq", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ge0", "txerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sata1", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "ua0", "cts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "rxd", V_88F6810_PLUS)),
MPP_MODE("mpp20",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ge0", "txclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ptp", "clk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "ua0", "rts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "txd", V_88F6810_PLUS)),
MPP_MODE("mpp21",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "cs1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "rxd0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "cmd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "bootcs", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "sata1", "prsnt", V_88F6810_PLUS)),
MPP_MODE("mpp22",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "mosi", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad0", V_88F6810_PLUS)),
MPP_MODE("mpp23",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "sck", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad2", V_88F6810_PLUS)),
MPP_MODE("mpp24",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "miso", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ua0", "cts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua1", "rxd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d4", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ready", V_88F6810_PLUS)),
MPP_MODE("mpp25",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "cs0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ua0", "rts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua1", "txd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d5", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "cs0", V_88F6810_PLUS)),
MPP_MODE("mpp26",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "cs2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "i2c1", "sck", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d6", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "cs1", V_88F6810_PLUS)),
MPP_MODE("mpp27",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "spi0", "cs3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "txclkout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "i2c1", "sda", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d7", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "cs2", V_88F6810_PLUS)),
MPP_MODE("mpp28",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "txd0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "clk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad5", V_88F6810_PLUS)),
MPP_MODE("mpp29",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "txd1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ale0", V_88F6810_PLUS)),
MPP_MODE("mpp30",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "txd2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "oe", V_88F6810_PLUS)),
MPP_MODE("mpp31",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "txd3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ale1", V_88F6810_PLUS)),
MPP_MODE("mpp32",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "txctl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "we0", V_88F6810_PLUS)),
MPP_MODE("mpp33",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "dram", "deccerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad3", V_88F6810_PLUS)),
MPP_MODE("mpp34",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad1", V_88F6810_PLUS)),
MPP_MODE("mpp35",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ref", "clk_out1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "a1", V_88F6810_PLUS)),
MPP_MODE("mpp36",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ptp", "trig", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "a0", V_88F6810_PLUS)),
MPP_MODE("mpp37",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ptp", "clk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "rxclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad8", V_88F6810_PLUS)),
MPP_MODE("mpp38",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ptp", "evreq", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "rxd1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ref", "clk_out0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad4", V_88F6810_PLUS)),
MPP_MODE("mpp39",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "i2c1", "sck", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "rxd2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua0", "cts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "a2", V_88F6810_PLUS)),
MPP_MODE("mpp40",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "i2c1", "sda", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "rxd3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua0", "rts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "sd0", "d2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad6", V_88F6810_PLUS)),
MPP_MODE("mpp41",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ua1", "rxd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge1", "rxctl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua0", "cts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "cs3", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "burst/last", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "nand", "rb0", V_88F6810_PLUS)),
MPP_MODE("mpp42",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ua1", "txd", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "ua0", "rts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "ad7", V_88F6810_PLUS)),
MPP_MODE("mpp43",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "pcie0", "clkreq", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "dram", "vttctrl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "dram", "deccerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "cs2", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dev", "clkout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "nand", "rb1", V_88F6810_PLUS)),
MPP_MODE("mpp44",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "sata1", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "sata2", "prsnt", V_88F6828),
MPP_VAR_FUNCTION(4, "sata3", "prsnt", V_88F6828)),
MPP_MODE("mpp45",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ref", "clk_out0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "rxd", V_88F6810_PLUS)),
MPP_MODE("mpp46",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ref", "clk_out1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "txd", V_88F6810_PLUS)),
MPP_MODE("mpp47",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "sata1", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "sata2", "prsnt", V_88F6828),
MPP_VAR_FUNCTION(5, "sata3", "prsnt", V_88F6828)),
MPP_MODE("mpp48",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "dram", "vttctrl", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "tdm", "pclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "audio", "mclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d4", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "pcie0", "clkreq", V_88F6810_PLUS)),
MPP_MODE("mpp49",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "sata2", "prsnt", V_88F6828),
MPP_VAR_FUNCTION(2, "sata3", "prsnt", V_88F6828),
MPP_VAR_FUNCTION(3, "tdm", "fsync", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "audio", "lrclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d5", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "pcie1", "clkreq", V_88F6820_PLUS)),
MPP_MODE("mpp50",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "tdm", "drx", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "audio", "extclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "cmd", V_88F6810_PLUS)),
MPP_MODE("mpp51",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "tdm", "dtx", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "audio", "sdo", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "dram", "deccerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ptp", "trig", V_88F6810_PLUS)),
MPP_MODE("mpp52",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "tdm", "int", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "audio", "sdi", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d6", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ptp", "clk", V_88F6810_PLUS)),
MPP_MODE("mpp53",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "sata1", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "tdm", "rst", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "audio", "bclk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d7", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ptp", "evreq", V_88F6810_PLUS)),
MPP_MODE("mpp54",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "sata0", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "sata1", "prsnt", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "ge0", "txerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d3", V_88F6810_PLUS)),
MPP_MODE("mpp55",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ua1", "cts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge", "mdio", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "pcie1", "clkreq", V_88F6820_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "cs1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "rxd", V_88F6810_PLUS)),
MPP_MODE("mpp56",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "ua1", "rts", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "ge", "mdc", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "dram", "deccerr", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "mosi", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "txd", V_88F6810_PLUS)),
MPP_MODE("mpp57",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "sck", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "clk", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "txd", V_88F6810_PLUS)),
MPP_MODE("mpp58",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "pcie1", "clkreq", V_88F6820_PLUS),
MPP_VAR_FUNCTION(2, "i2c1", "sck", V_88F6810_PLUS),
MPP_VAR_FUNCTION(3, "pcie2", "clkreq", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "miso", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d1", V_88F6810_PLUS),
MPP_VAR_FUNCTION(6, "ua1", "rxd", V_88F6810_PLUS)),
MPP_MODE("mpp59",
MPP_VAR_FUNCTION(0, "gpio", NULL, V_88F6810_PLUS),
MPP_VAR_FUNCTION(1, "pcie0", "rstout", V_88F6810_PLUS),
MPP_VAR_FUNCTION(2, "i2c1", "sda", V_88F6810_PLUS),
MPP_VAR_FUNCTION(4, "spi1", "cs0", V_88F6810_PLUS),
MPP_VAR_FUNCTION(5, "sd0", "d2", V_88F6810_PLUS)),
};
static const char * const armada_38x_mpp_function_names[] = {
"gpio", /* make gpio always as function 0 */
"audio",
"dev",
"dram",
"ge",
"ge0",
"ge1",
"i2c0",
"i2c1",
"nand",
"pcie0",
"pcie1",
"pcie2",
"pcie3",
"ptp",
"ref",
"sata0",
"sata1",
"sata2",
"sata3",
"sd0",
"spi0",
"spi1",
"tdm",
"ua0",
"ua1",
};
struct armada_38x_pinctrl {
void __iomem *base;
u8 variant;
};
static int armada_38x_pinctrl_get_pins_count(struct udevice *dev)
{
return ARRAY_SIZE(armada_38x_mpp_modes);
}
static const char *armada_38x_pinctrl_get_pin_name(struct udevice *dev, unsigned int selector)
{
return armada_38x_mpp_modes[selector].name;
}
static int armada_38x_pinctrl_get_functions_count(struct udevice *dev)
{
return ARRAY_SIZE(armada_38x_mpp_function_names);
}
static const char *armada_38x_pinctrl_get_function_name(struct udevice *dev, unsigned int selector)
{
return armada_38x_mpp_function_names[selector];
}
static int armada_38x_pinctrl_get_pin_muxing(struct udevice *dev, unsigned int selector,
char *buf, int size)
{
struct armada_38x_pinctrl *info = dev_get_priv(dev);
unsigned int off = (selector / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned int shift = (selector % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
const char *func_name = NULL;
const char *sub_name = NULL;
unsigned long config;
int i;
config = (readl(info->base + off) >> shift) & MVEBU_MPP_MASK;
for (i = 0; i < armada_38x_mpp_modes[selector].nsettings; i++) {
if (armada_38x_mpp_modes[selector].settings[i].val == config)
break;
}
if (i < armada_38x_mpp_modes[selector].nsettings) {
func_name = armada_38x_mpp_modes[selector].settings[i].name;
sub_name = armada_38x_mpp_modes[selector].settings[i].subname;
}
snprintf(buf, size, "%s%s%s",
func_name ? func_name : "unknown",
sub_name ? "_" : "",
sub_name ? sub_name : "");
return 0;
}
static int armada_38x_pinctrl_pinmux_set(struct udevice *dev, unsigned int pin_selector,
unsigned int func_selector)
{
struct armada_38x_pinctrl *info = dev_get_priv(dev);
unsigned int off = (pin_selector / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned int shift = (pin_selector % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
const char *func_name = armada_38x_mpp_function_names[func_selector];
unsigned long config, reg;
int i;
for (i = 0; i < armada_38x_mpp_modes[pin_selector].nsettings; i++) {
if (strcmp(armada_38x_mpp_modes[pin_selector].settings[i].name, func_name) == 0)
break;
}
if (i >= armada_38x_mpp_modes[pin_selector].nsettings)
return -EINVAL;
if (!(info->variant & armada_38x_mpp_modes[pin_selector].settings[i].variant))
return -EINVAL;
reg = readl(info->base + off) & ~(MVEBU_MPP_MASK << shift);
config = armada_38x_mpp_modes[pin_selector].settings[i].val;
writel(reg | (config << shift), info->base + off);
return 0;
}
static int armada_38x_pinctrl_gpio_request_enable(struct udevice *dev, unsigned int selector)
{
char buf[20];
armada_38x_pinctrl_get_pin_muxing(dev, selector, buf, sizeof(buf));
if (strcmp(buf, "gpio") != 0)
printf("Warning: Changing mpp%u function from %s to gpio...\n", selector, buf);
return armada_38x_pinctrl_pinmux_set(dev, selector, 0); /* gpio is always function 0 */
}
static int armada_38x_pinctrl_gpio_disable_free(struct udevice *dev, unsigned int selector)
{
/* nothing to do */
return 0;
}
static int armada_38x_pinctrl_set_state(struct udevice *dev, struct udevice *config)
{
return pinctrl_generic_set_state_prefix(dev, config, "marvell,");
}
static int armada_38x_pinctrl_probe(struct udevice *dev)
{
struct armada_38x_pinctrl *info = dev_get_priv(dev);
info->variant = (u8)dev_get_driver_data(dev);
info->base = dev_read_addr_ptr(dev);
if (!info->base)
return -EINVAL;
return 0;
}
struct pinctrl_ops armada_37xx_pinctrl_ops = {
.get_pins_count = armada_38x_pinctrl_get_pins_count,
.get_pin_name = armada_38x_pinctrl_get_pin_name,
.get_functions_count = armada_38x_pinctrl_get_functions_count,
.get_function_name = armada_38x_pinctrl_get_function_name,
.get_pin_muxing = armada_38x_pinctrl_get_pin_muxing,
.pinmux_set = armada_38x_pinctrl_pinmux_set,
.gpio_request_enable = armada_38x_pinctrl_gpio_request_enable,
.gpio_disable_free = armada_38x_pinctrl_gpio_disable_free,
.set_state = armada_38x_pinctrl_set_state,
};
static const struct udevice_id armada_38x_pinctrl_of_match[] = {
{
.compatible = "marvell,mv88f6810-pinctrl",
.data = V_88F6810,
},
{
.compatible = "marvell,mv88f6820-pinctrl",
.data = V_88F6820,
},
{
.compatible = "marvell,mv88f6828-pinctrl",
.data = V_88F6828,
},
{ },
};
U_BOOT_DRIVER(armada_38x_pinctrl) = {
.name = "armada-38x-pinctrl",
.id = UCLASS_PINCTRL,
.of_match = of_match_ptr(armada_38x_pinctrl_of_match),
.probe = armada_38x_pinctrl_probe,
.priv_auto = sizeof(struct armada_38x_pinctrl),
.ops = &armada_37xx_pinctrl_ops,
};
Reference in a new issue Copy permalink