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linux/drivers/pinctrl/mvebu/pinctrl-dove.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

861 lines
28 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Marvell Dove pinctrl driver based on mvebu pinctrl core
*
* Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
*/
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/mfd/syscon.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/regmap.h>
#include "pinctrl-mvebu.h"
/* Internal registers can be configured at any 1 MiB aligned address */
#define INT_REGS_MASK ~(SZ_1M - 1)
#define MPP4_REGS_OFFS 0xd0440
#define PMU_REGS_OFFS 0xd802c
#define GC_REGS_OFFS 0xe802c
/* MPP Base registers */
#define PMU_MPP_GENERAL_CTRL 0x10
#define AU0_AC97_SEL BIT(16)
/* MPP Control 4 register */
#define SPI_GPIO_SEL BIT(5)
#define UART1_GPIO_SEL BIT(4)
#define AU1_GPIO_SEL BIT(3)
#define CAM_GPIO_SEL BIT(2)
#define SD1_GPIO_SEL BIT(1)
#define SD0_GPIO_SEL BIT(0)
/* PMU Signal Select registers */
#define PMU_SIGNAL_SELECT_0 0x00
#define PMU_SIGNAL_SELECT_1 0x04
/* Global Config regmap registers */
#define GLOBAL_CONFIG_1 0x00
#define TWSI_ENABLE_OPTION1 BIT(7)
#define GLOBAL_CONFIG_2 0x04
#define TWSI_ENABLE_OPTION2 BIT(20)
#define TWSI_ENABLE_OPTION3 BIT(21)
#define TWSI_OPTION3_GPIO BIT(22)
#define SSP_CTRL_STATUS_1 0x08
#define SSP_ON_AU1 BIT(0)
#define MPP_GENERAL_CONFIG 0x10
#define AU1_SPDIFO_GPIO_EN BIT(1)
#define NAND_GPIO_EN BIT(0)
#define CONFIG_PMU BIT(4)
static void __iomem *mpp4_base;
static void __iomem *pmu_base;
static struct regmap *gconfmap;
static int dove_pmu_mpp_ctrl_get(struct mvebu_mpp_ctrl_data *data,
unsigned pid, unsigned long *config)
{
unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL);
unsigned long func;
if ((pmu & BIT(pid)) == 0)
return mvebu_mmio_mpp_ctrl_get(data, pid, config);
func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off);
*config = (func >> shift) & MVEBU_MPP_MASK;
*config |= CONFIG_PMU;
return 0;
}
static int dove_pmu_mpp_ctrl_set(struct mvebu_mpp_ctrl_data *data,
unsigned pid, unsigned long config)
{
unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL);
unsigned long func;
if ((config & CONFIG_PMU) == 0) {
writel(pmu & ~BIT(pid), data->base + PMU_MPP_GENERAL_CTRL);
return mvebu_mmio_mpp_ctrl_set(data, pid, config);
}
writel(pmu | BIT(pid), data->base + PMU_MPP_GENERAL_CTRL);
func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off);
func &= ~(MVEBU_MPP_MASK << shift);
func |= (config & MVEBU_MPP_MASK) << shift;
writel(func, pmu_base + PMU_SIGNAL_SELECT_0 + off);
return 0;
}
static int dove_mpp4_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long *config)
{
unsigned long mpp4 = readl(mpp4_base);
unsigned long mask;
switch (pid) {
case 24: /* mpp_camera */
mask = CAM_GPIO_SEL;
break;
case 40: /* mpp_sdio0 */
mask = SD0_GPIO_SEL;
break;
case 46: /* mpp_sdio1 */
mask = SD1_GPIO_SEL;
break;
case 58: /* mpp_spi0 */
mask = SPI_GPIO_SEL;
break;
case 62: /* mpp_uart1 */
mask = UART1_GPIO_SEL;
break;
default:
return -EINVAL;
}
*config = ((mpp4 & mask) != 0);
return 0;
}
static int dove_mpp4_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long config)
{
unsigned long mpp4 = readl(mpp4_base);
unsigned long mask;
switch (pid) {
case 24: /* mpp_camera */
mask = CAM_GPIO_SEL;
break;
case 40: /* mpp_sdio0 */
mask = SD0_GPIO_SEL;
break;
case 46: /* mpp_sdio1 */
mask = SD1_GPIO_SEL;
break;
case 58: /* mpp_spi0 */
mask = SPI_GPIO_SEL;
break;
case 62: /* mpp_uart1 */
mask = UART1_GPIO_SEL;
break;
default:
return -EINVAL;
}
mpp4 &= ~mask;
if (config)
mpp4 |= mask;
writel(mpp4, mpp4_base);
return 0;
}
static int dove_nand_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long *config)
{
unsigned int gmpp;
regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp);
*config = ((gmpp & NAND_GPIO_EN) != 0);
return 0;
}
static int dove_nand_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long config)
{
regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG,
NAND_GPIO_EN,
(config) ? NAND_GPIO_EN : 0);
return 0;
}
static int dove_audio0_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long *config)
{
unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL);
*config = ((pmu & AU0_AC97_SEL) != 0);
return 0;
}
static int dove_audio0_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long config)
{
unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL);
pmu &= ~AU0_AC97_SEL;
if (config)
pmu |= AU0_AC97_SEL;
writel(pmu, data->base + PMU_MPP_GENERAL_CTRL);
return 0;
}
static int dove_audio1_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long *config)
{
unsigned int mpp4 = readl(mpp4_base);
unsigned int sspc1;
unsigned int gmpp;
unsigned int gcfg2;
regmap_read(gconfmap, SSP_CTRL_STATUS_1, &sspc1);
regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp);
regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2);
*config = 0;
if (mpp4 & AU1_GPIO_SEL)
*config |= BIT(3);
if (sspc1 & SSP_ON_AU1)
*config |= BIT(2);
if (gmpp & AU1_SPDIFO_GPIO_EN)
*config |= BIT(1);
if (gcfg2 & TWSI_OPTION3_GPIO)
*config |= BIT(0);
/* SSP/TWSI only if I2S1 not set*/
if ((*config & BIT(3)) == 0)
*config &= ~(BIT(2) | BIT(0));
/* TWSI only if SPDIFO not set*/
if ((*config & BIT(1)) == 0)
*config &= ~BIT(0);
return 0;
}
static int dove_audio1_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long config)
{
unsigned int mpp4 = readl(mpp4_base);
mpp4 &= ~AU1_GPIO_SEL;
if (config & BIT(3))
mpp4 |= AU1_GPIO_SEL;
writel(mpp4, mpp4_base);
regmap_update_bits(gconfmap, SSP_CTRL_STATUS_1,
SSP_ON_AU1,
(config & BIT(2)) ? SSP_ON_AU1 : 0);
regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG,
AU1_SPDIFO_GPIO_EN,
(config & BIT(1)) ? AU1_SPDIFO_GPIO_EN : 0);
regmap_update_bits(gconfmap, GLOBAL_CONFIG_2,
TWSI_OPTION3_GPIO,
(config & BIT(0)) ? TWSI_OPTION3_GPIO : 0);
return 0;
}
/* mpp[52:57] gpio pins depend heavily on current config;
* gpio_req does not try to mux in gpio capabilities to not
* break other functions. If you require all mpps as gpio
* enforce gpio setting by pinctrl mapping.
*/
static int dove_audio1_ctrl_gpio_req(struct mvebu_mpp_ctrl_data *data,
unsigned pid)
{
unsigned long config;
dove_audio1_ctrl_get(data, pid, &config);
switch (config) {
case 0x02: /* i2s1 : gpio[56:57] */
case 0x0e: /* ssp : gpio[56:57] */
if (pid >= 56)
return 0;
return -ENOTSUPP;
case 0x08: /* spdifo : gpio[52:55] */
case 0x0b: /* twsi : gpio[52:55] */
if (pid <= 55)
return 0;
return -ENOTSUPP;
case 0x0a: /* all gpio */
return 0;
/* 0x00 : i2s1/spdifo : no gpio */
/* 0x0c : ssp/spdifo : no gpio */
/* 0x0f : ssp/twsi : no gpio */
}
return -ENOTSUPP;
}
/* mpp[52:57] has gpio pins capable of in and out */
static int dove_audio1_ctrl_gpio_dir(struct mvebu_mpp_ctrl_data *data,
unsigned pid, bool input)
{
if (pid < 52 || pid > 57)
return -ENOTSUPP;
return 0;
}
static int dove_twsi_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long *config)
{
unsigned int gcfg1;
unsigned int gcfg2;
regmap_read(gconfmap, GLOBAL_CONFIG_1, &gcfg1);
regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2);
*config = 0;
if (gcfg1 & TWSI_ENABLE_OPTION1)
*config = 1;
else if (gcfg2 & TWSI_ENABLE_OPTION2)
*config = 2;
else if (gcfg2 & TWSI_ENABLE_OPTION3)
*config = 3;
return 0;
}
static int dove_twsi_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid,
unsigned long config)
{
unsigned int gcfg1 = 0;
unsigned int gcfg2 = 0;
switch (config) {
case 1:
gcfg1 = TWSI_ENABLE_OPTION1;
break;
case 2:
gcfg2 = TWSI_ENABLE_OPTION2;
break;
case 3:
gcfg2 = TWSI_ENABLE_OPTION3;
break;
}
regmap_update_bits(gconfmap, GLOBAL_CONFIG_1,
TWSI_ENABLE_OPTION1,
gcfg1);
regmap_update_bits(gconfmap, GLOBAL_CONFIG_2,
TWSI_ENABLE_OPTION2 | TWSI_ENABLE_OPTION3,
gcfg2);
return 0;
}
static const struct mvebu_mpp_ctrl dove_mpp_controls[] = {
MPP_FUNC_CTRL(0, 15, NULL, dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(16, 23, NULL, mvebu_mmio_mpp_ctrl),
MPP_FUNC_CTRL(24, 39, "mpp_camera", dove_mpp4_ctrl),
MPP_FUNC_CTRL(40, 45, "mpp_sdio0", dove_mpp4_ctrl),
MPP_FUNC_CTRL(46, 51, "mpp_sdio1", dove_mpp4_ctrl),
MPP_FUNC_GPIO_CTRL(52, 57, "mpp_audio1", dove_audio1_ctrl),
MPP_FUNC_CTRL(58, 61, "mpp_spi0", dove_mpp4_ctrl),
MPP_FUNC_CTRL(62, 63, "mpp_uart1", dove_mpp4_ctrl),
MPP_FUNC_CTRL(64, 71, "mpp_nand", dove_nand_ctrl),
MPP_FUNC_CTRL(72, 72, "audio0", dove_audio0_ctrl),
MPP_FUNC_CTRL(73, 73, "twsi", dove_twsi_ctrl),
};
static struct mvebu_mpp_mode dove_mpp_modes[] = {
MPP_MODE(0,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart2", "rts"),
MPP_FUNCTION(0x03, "sdio0", "cd"),
MPP_FUNCTION(0x0f, "lcd0", "pwm"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(1,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart2", "cts"),
MPP_FUNCTION(0x03, "sdio0", "wp"),
MPP_FUNCTION(0x0f, "lcd1", "pwm"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(2,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "sata", "prsnt"),
MPP_FUNCTION(0x02, "uart2", "txd"),
MPP_FUNCTION(0x03, "sdio0", "buspwr"),
MPP_FUNCTION(0x04, "uart1", "rts"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(3,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "sata", "act"),
MPP_FUNCTION(0x02, "uart2", "rxd"),
MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
MPP_FUNCTION(0x04, "uart1", "cts"),
MPP_FUNCTION(0x0f, "lcd-spi", "cs1"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(4,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "rts"),
MPP_FUNCTION(0x03, "sdio1", "cd"),
MPP_FUNCTION(0x04, "spi1", "miso"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(5,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "cts"),
MPP_FUNCTION(0x03, "sdio1", "wp"),
MPP_FUNCTION(0x04, "spi1", "cs"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(6,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "txd"),
MPP_FUNCTION(0x03, "sdio1", "buspwr"),
MPP_FUNCTION(0x04, "spi1", "mosi"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(7,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "rxd"),
MPP_FUNCTION(0x03, "sdio1", "ledctrl"),
MPP_FUNCTION(0x04, "spi1", "sck"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(8,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "watchdog", "rstout"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(9,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x05, "pex1", "clkreq"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(10,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x05, "ssp", "sclk"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(11,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "sata", "prsnt"),
MPP_FUNCTION(0x02, "sata-1", "act"),
MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
MPP_FUNCTION(0x04, "sdio1", "ledctrl"),
MPP_FUNCTION(0x05, "pex0", "clkreq"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(12,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "sata", "act"),
MPP_FUNCTION(0x02, "uart2", "rts"),
MPP_FUNCTION(0x03, "audio0", "extclk"),
MPP_FUNCTION(0x04, "sdio1", "cd"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(13,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart2", "cts"),
MPP_FUNCTION(0x03, "audio1", "extclk"),
MPP_FUNCTION(0x04, "sdio1", "wp"),
MPP_FUNCTION(0x05, "ssp", "extclk"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(14,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart2", "txd"),
MPP_FUNCTION(0x04, "sdio1", "buspwr"),
MPP_FUNCTION(0x05, "ssp", "rxd"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(15,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart2", "rxd"),
MPP_FUNCTION(0x04, "sdio1", "ledctrl"),
MPP_FUNCTION(0x05, "ssp", "sfrm"),
MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
MPP_MODE(16,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "rts"),
MPP_FUNCTION(0x03, "sdio0", "cd"),
MPP_FUNCTION(0x04, "lcd-spi", "cs1"),
MPP_FUNCTION(0x05, "ac97", "sdi1")),
MPP_MODE(17,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "ac97-1", "sysclko"),
MPP_FUNCTION(0x02, "uart3", "cts"),
MPP_FUNCTION(0x03, "sdio0", "wp"),
MPP_FUNCTION(0x04, "twsi", "sda"),
MPP_FUNCTION(0x05, "ac97", "sdi2")),
MPP_MODE(18,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "txd"),
MPP_FUNCTION(0x03, "sdio0", "buspwr"),
MPP_FUNCTION(0x04, "lcd0", "pwm"),
MPP_FUNCTION(0x05, "ac97", "sdi3")),
MPP_MODE(19,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "uart3", "rxd"),
MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
MPP_FUNCTION(0x04, "twsi", "sck")),
MPP_MODE(20,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "ac97", "sysclko"),
MPP_FUNCTION(0x02, "lcd-spi", "miso"),
MPP_FUNCTION(0x03, "sdio1", "cd"),
MPP_FUNCTION(0x05, "sdio0", "cd"),
MPP_FUNCTION(0x06, "spi1", "miso")),
MPP_MODE(21,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "uart1", "rts"),
MPP_FUNCTION(0x02, "lcd-spi", "cs0"),
MPP_FUNCTION(0x03, "sdio1", "wp"),
MPP_FUNCTION(0x04, "ssp", "sfrm"),
MPP_FUNCTION(0x05, "sdio0", "wp"),
MPP_FUNCTION(0x06, "spi1", "cs")),
MPP_MODE(22,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "uart1", "cts"),
MPP_FUNCTION(0x02, "lcd-spi", "mosi"),
MPP_FUNCTION(0x03, "sdio1", "buspwr"),
MPP_FUNCTION(0x04, "ssp", "txd"),
MPP_FUNCTION(0x05, "sdio0", "buspwr"),
MPP_FUNCTION(0x06, "spi1", "mosi")),
MPP_MODE(23,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x02, "lcd-spi", "sck"),
MPP_FUNCTION(0x03, "sdio1", "ledctrl"),
MPP_FUNCTION(0x04, "ssp", "sclk"),
MPP_FUNCTION(0x05, "sdio0", "ledctrl"),
MPP_FUNCTION(0x06, "spi1", "sck")),
MPP_MODE(24,
MPP_FUNCTION(0x00, "camera", NULL),
MPP_FUNCTION(0x01, "gpio", NULL)),
MPP_MODE(40,
MPP_FUNCTION(0x00, "sdio0", NULL),
MPP_FUNCTION(0x01, "gpio", NULL)),
MPP_MODE(46,
MPP_FUNCTION(0x00, "sdio1", NULL),
MPP_FUNCTION(0x01, "gpio", NULL)),
MPP_MODE(52,
MPP_FUNCTION(0x00, "i2s1/spdifo", NULL),
MPP_FUNCTION(0x02, "i2s1", NULL),
MPP_FUNCTION(0x08, "spdifo", NULL),
MPP_FUNCTION(0x0a, "gpio", NULL),
MPP_FUNCTION(0x0b, "twsi", NULL),
MPP_FUNCTION(0x0c, "ssp/spdifo", NULL),
MPP_FUNCTION(0x0e, "ssp", NULL),
MPP_FUNCTION(0x0f, "ssp/twsi", NULL)),
MPP_MODE(58,
MPP_FUNCTION(0x00, "spi0", NULL),
MPP_FUNCTION(0x01, "gpio", NULL)),
MPP_MODE(62,
MPP_FUNCTION(0x00, "uart1", NULL),
MPP_FUNCTION(0x01, "gpio", NULL)),
MPP_MODE(64,
MPP_FUNCTION(0x00, "nand", NULL),
MPP_FUNCTION(0x01, "gpo", NULL)),
MPP_MODE(72,
MPP_FUNCTION(0x00, "i2s", NULL),
MPP_FUNCTION(0x01, "ac97", NULL)),
MPP_MODE(73,
MPP_FUNCTION(0x00, "twsi-none", NULL),
MPP_FUNCTION(0x01, "twsi-opt1", NULL),
MPP_FUNCTION(0x02, "twsi-opt2", NULL),
MPP_FUNCTION(0x03, "twsi-opt3", NULL)),
};
static struct pinctrl_gpio_range dove_mpp_gpio_ranges[] = {
MPP_GPIO_RANGE(0, 0, 0, 32),
MPP_GPIO_RANGE(1, 32, 32, 32),
MPP_GPIO_RANGE(2, 64, 64, 8),
};
static struct mvebu_pinctrl_soc_info dove_pinctrl_info = {
.controls = dove_mpp_controls,
.ncontrols = ARRAY_SIZE(dove_mpp_controls),
.modes = dove_mpp_modes,
.nmodes = ARRAY_SIZE(dove_mpp_modes),
.gpioranges = dove_mpp_gpio_ranges,
.ngpioranges = ARRAY_SIZE(dove_mpp_gpio_ranges),
.variant = 0,
};
static struct clk *clk;
static const struct of_device_id dove_pinctrl_of_match[] = {
{ .compatible = "marvell,dove-pinctrl", .data = &dove_pinctrl_info },
{ }
};
static const struct regmap_config gc_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.max_register = 5,
};
static int dove_pinctrl_probe(struct platform_device *pdev)
{
struct resource *res, *mpp_res;
struct resource fb_res;
const struct of_device_id *match =
of_match_device(dove_pinctrl_of_match, &pdev->dev);
struct mvebu_mpp_ctrl_data *mpp_data;
void __iomem *base;
int i;
pdev->dev.platform_data = (void *)match->data;
/*
* General MPP Configuration Register is part of pdma registers.
* grab clk to make sure it is ticking.
*/
clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "Unable to get pdma clock");
return PTR_ERR(clk);
}
clk_prepare_enable(clk);
mpp_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, mpp_res);
if (IS_ERR(base))
return PTR_ERR(base);
mpp_data = devm_kcalloc(&pdev->dev, dove_pinctrl_info.ncontrols,
sizeof(*mpp_data), GFP_KERNEL);
if (!mpp_data)
return -ENOMEM;
dove_pinctrl_info.control_data = mpp_data;
for (i = 0; i < ARRAY_SIZE(dove_mpp_controls); i++)
mpp_data[i].base = base;
/* prepare fallback resource */
memcpy(&fb_res, mpp_res, sizeof(struct resource));
fb_res.start = 0;
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res) {
dev_warn(&pdev->dev, "falling back to hardcoded MPP4 resource\n");
adjust_resource(&fb_res,
(mpp_res->start & INT_REGS_MASK) + MPP4_REGS_OFFS, 0x4);
res = &fb_res;
}
mpp4_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mpp4_base))
return PTR_ERR(mpp4_base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
if (!res) {
dev_warn(&pdev->dev, "falling back to hardcoded PMU resource\n");
adjust_resource(&fb_res,
(mpp_res->start & INT_REGS_MASK) + PMU_REGS_OFFS, 0x8);
res = &fb_res;
}
pmu_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pmu_base))
return PTR_ERR(pmu_base);
gconfmap = syscon_regmap_lookup_by_compatible("marvell,dove-global-config");
if (IS_ERR(gconfmap)) {
void __iomem *gc_base;
dev_warn(&pdev->dev, "falling back to hardcoded global registers\n");
adjust_resource(&fb_res,
(mpp_res->start & INT_REGS_MASK) + GC_REGS_OFFS, 0x14);
gc_base = devm_ioremap_resource(&pdev->dev, &fb_res);
if (IS_ERR(gc_base))
return PTR_ERR(gc_base);
gconfmap = devm_regmap_init_mmio(&pdev->dev,
gc_base, &gc_regmap_config);
if (IS_ERR(gconfmap))
return PTR_ERR(gconfmap);
}
/* Warn on any missing DT resource */
if (fb_res.start)
dev_warn(&pdev->dev, FW_BUG "Missing pinctrl regs in DTB. Please update your firmware.\n");
return mvebu_pinctrl_probe(pdev);
}
static struct platform_driver dove_pinctrl_driver = {
.driver = {
.name = "dove-pinctrl",
.suppress_bind_attrs = true,
.of_match_table = dove_pinctrl_of_match,
},
.probe = dove_pinctrl_probe,
};
builtin_platform_driver(dove_pinctrl_driver);
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