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linux/drivers/pinctrl/pinctrl-dove.c
Sebastian Hesselbarth c9f95cedfe pinctrl: mvebu: dove pinctrl driver 
This patch adds a SoC specific pinctrl driver for Marvell Dove SoCs
plus DT binding documentation. This driver will use the mvebu pinctrl
driver core.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-09-22 14:50:16 +00:00

620 lines
18 KiB
C
Raw Blame History

/*
* Marvell Dove pinctrl driver based on mvebu pinctrl core
*
* Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.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.
*/
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/module.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/pinctrl/pinctrl.h>
#include "pinctrl-mvebu.h"
#define DOVE_SB_REGS_VIRT_BASE 0xfde00000
#define DOVE_MPP_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0xd0200)
#define DOVE_PMU_MPP_GENERAL_CTRL (DOVE_MPP_VIRT_BASE + 0x10)
#define DOVE_AU0_AC97_SEL BIT(16)
#define DOVE_GLOBAL_CONFIG_1 (DOVE_SB_REGS_VIRT_BASE | 0xe802C)
#define DOVE_TWSI_ENABLE_OPTION1 BIT(7)
#define DOVE_GLOBAL_CONFIG_2 (DOVE_SB_REGS_VIRT_BASE | 0xe8030)
#define DOVE_TWSI_ENABLE_OPTION2 BIT(20)
#define DOVE_TWSI_ENABLE_OPTION3 BIT(21)
#define DOVE_TWSI_OPTION3_GPIO BIT(22)
#define DOVE_SSP_CTRL_STATUS_1 (DOVE_SB_REGS_VIRT_BASE | 0xe8034)
#define DOVE_SSP_ON_AU1 BIT(0)
#define DOVE_MPP_GENERAL_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0xe803c)
#define DOVE_AU1_SPDIFO_GPIO_EN BIT(1)
#define DOVE_NAND_GPIO_EN BIT(0)
#define DOVE_GPIO_LO_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0xd0400)
#define DOVE_MPP_CTRL4_VIRT_BASE (DOVE_GPIO_LO_VIRT_BASE + 0x40)
#define DOVE_SPI_GPIO_SEL BIT(5)
#define DOVE_UART1_GPIO_SEL BIT(4)
#define DOVE_AU1_GPIO_SEL BIT(3)
#define DOVE_CAM_GPIO_SEL BIT(2)
#define DOVE_SD1_GPIO_SEL BIT(1)
#define DOVE_SD0_GPIO_SEL BIT(0)
#define MPPS_PER_REG 8
#define MPP_BITS 4
#define MPP_MASK 0xf
#define CONFIG_PMU BIT(4)
static int dove_pmu_mpp_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
unsigned long *config)
{
unsigned off = (ctrl->pid / MPPS_PER_REG) * MPP_BITS;
unsigned shift = (ctrl->pid % MPPS_PER_REG) * MPP_BITS;
unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
unsigned long mpp = readl(DOVE_MPP_VIRT_BASE + off);
if (pmu & (1 << ctrl->pid))
*config = CONFIG_PMU;
else
*config = (mpp >> shift) & MPP_MASK;
return 0;
}
static int dove_pmu_mpp_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
unsigned long config)
{
unsigned off = (ctrl->pid / MPPS_PER_REG) * MPP_BITS;
unsigned shift = (ctrl->pid % MPPS_PER_REG) * MPP_BITS;
unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
unsigned long mpp = readl(DOVE_MPP_VIRT_BASE + off);
if (config == CONFIG_PMU)
writel(pmu | (1 << ctrl->pid), DOVE_PMU_MPP_GENERAL_CTRL);
else {
writel(pmu & ~(1 << ctrl->pid), DOVE_PMU_MPP_GENERAL_CTRL);
mpp &= ~(MPP_MASK << shift);
mpp |= config << shift;
writel(mpp, DOVE_MPP_VIRT_BASE + off);
}
return 0;
}
static int dove_mpp4_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
unsigned long *config)
{
unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
unsigned long mask;
switch (ctrl->pid) {
case 24: /* mpp_camera */
mask = DOVE_CAM_GPIO_SEL;
break;
case 40: /* mpp_sdio0 */
mask = DOVE_SD0_GPIO_SEL;
break;
case 46: /* mpp_sdio1 */
mask = DOVE_SD1_GPIO_SEL;
break;
case 58: /* mpp_spi0 */
mask = DOVE_SPI_GPIO_SEL;
break;
case 62: /* mpp_uart1 */
mask = DOVE_UART1_GPIO_SEL;
break;
default:
return -EINVAL;
}
*config = ((mpp4 & mask) != 0);
return 0;
}
static int dove_mpp4_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
unsigned long config)
{
unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
unsigned long mask;
switch (ctrl->pid) {
case 24: /* mpp_camera */
mask = DOVE_CAM_GPIO_SEL;
break;
case 40: /* mpp_sdio0 */
mask = DOVE_SD0_GPIO_SEL;
break;
case 46: /* mpp_sdio1 */
mask = DOVE_SD1_GPIO_SEL;
break;
case 58: /* mpp_spi0 */
mask = DOVE_SPI_GPIO_SEL;
break;
case 62: /* mpp_uart1 */
mask = DOVE_UART1_GPIO_SEL;
break;
default:
return -EINVAL;
}
mpp4 &= ~mask;
if (config)
mpp4 |= mask;
writel(mpp4, DOVE_MPP_CTRL4_VIRT_BASE);
return 0;
}
static int dove_nand_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
unsigned long *config)
{
unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
*config = ((gmpp & DOVE_NAND_GPIO_EN) != 0);
return 0;
}
static int dove_nand_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
unsigned long config)
{
unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
gmpp &= ~DOVE_NAND_GPIO_EN;
if (config)
gmpp |= DOVE_NAND_GPIO_EN;
writel(gmpp, DOVE_MPP_GENERAL_VIRT_BASE);
return 0;
}
static int dove_audio0_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
unsigned long *config)
{
unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
*config = ((pmu & DOVE_AU0_AC97_SEL) != 0);
return 0;
}
static int dove_audio0_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
unsigned long config)
{
unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
pmu &= ~DOVE_AU0_AC97_SEL;
if (config)
pmu |= DOVE_AU0_AC97_SEL;
writel(pmu, DOVE_PMU_MPP_GENERAL_CTRL);
return 0;
}
static int dove_audio1_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
unsigned long *config)
{
unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
unsigned long sspc1 = readl(DOVE_SSP_CTRL_STATUS_1);
unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
*config = 0;
if (mpp4 & DOVE_AU1_GPIO_SEL)
*config |= BIT(3);
if (sspc1 & DOVE_SSP_ON_AU1)
*config |= BIT(2);
if (gmpp & DOVE_AU1_SPDIFO_GPIO_EN)
*config |= BIT(1);
if (gcfg2 & DOVE_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 *ctrl,
unsigned long config)
{
unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
unsigned long sspc1 = readl(DOVE_SSP_CTRL_STATUS_1);
unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
if (config & BIT(0))
gcfg2 |= DOVE_TWSI_OPTION3_GPIO;
if (config & BIT(1))
gmpp |= DOVE_AU1_SPDIFO_GPIO_EN;
if (config & BIT(2))
sspc1 |= DOVE_SSP_ON_AU1;
if (config & BIT(3))
mpp4 |= DOVE_AU1_GPIO_SEL;
writel(mpp4, DOVE_MPP_CTRL4_VIRT_BASE);
writel(sspc1, DOVE_SSP_CTRL_STATUS_1);
writel(gmpp, DOVE_MPP_GENERAL_VIRT_BASE);
writel(gcfg2, DOVE_GLOBAL_CONFIG_2);
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 *ctrl, u8 pid)
{
unsigned long config;
dove_audio1_ctrl_get(ctrl, &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 *ctrl, u8 pid,
bool input)
{
if (pid < 52 || pid > 57)
return -ENOTSUPP;
return 0;
}
static int dove_twsi_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
unsigned long *config)
{
unsigned long gcfg1 = readl(DOVE_GLOBAL_CONFIG_1);
unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
*config = 0;
if (gcfg1 & DOVE_TWSI_ENABLE_OPTION1)
*config = 1;
else if (gcfg2 & DOVE_TWSI_ENABLE_OPTION2)
*config = 2;
else if (gcfg2 & DOVE_TWSI_ENABLE_OPTION3)
*config = 3;
return 0;
}
static int dove_twsi_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
unsigned long config)
{
unsigned long gcfg1 = readl(DOVE_GLOBAL_CONFIG_1);
unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
gcfg1 &= ~DOVE_TWSI_ENABLE_OPTION1;
gcfg2 &= ~(DOVE_TWSI_ENABLE_OPTION2 | DOVE_TWSI_ENABLE_OPTION2);
switch (config) {
case 1:
gcfg1 |= DOVE_TWSI_ENABLE_OPTION1;
break;
case 2:
gcfg2 |= DOVE_TWSI_ENABLE_OPTION2;
break;
case 3:
gcfg2 |= DOVE_TWSI_ENABLE_OPTION3;
break;
}
writel(gcfg1, DOVE_GLOBAL_CONFIG_1);
writel(gcfg2, DOVE_GLOBAL_CONFIG_2);
return 0;
}
static struct mvebu_mpp_ctrl dove_mpp_controls[] = {
MPP_FUNC_CTRL(0, 0, "mpp0", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(1, 1, "mpp1", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(2, 2, "mpp2", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(3, 3, "mpp3", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(4, 4, "mpp4", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(5, 5, "mpp5", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(6, 6, "mpp6", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(7, 7, "mpp7", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(8, 8, "mpp8", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(9, 9, "mpp9", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(10, 10, "mpp10", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(11, 11, "mpp11", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(12, 12, "mpp12", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(13, 13, "mpp13", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(14, 14, "mpp14", dove_pmu_mpp_ctrl),
MPP_FUNC_CTRL(15, 15, "mpp15", dove_pmu_mpp_ctrl),
MPP_REG_CTRL(16, 23),
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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", NULL)),
MPP_MODE(8,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x01, "watchdog", "rstout"),
MPP_FUNCTION(0x10, "pmu", NULL)),
MPP_MODE(9,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x05, "pex1", "clkreq"),
MPP_FUNCTION(0x10, "pmu", NULL)),
MPP_MODE(10,
MPP_FUNCTION(0x00, "gpio", NULL),
MPP_FUNCTION(0x05, "ssp", "sclk"),
MPP_FUNCTION(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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(0x10, "pmu", 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 struct of_device_id dove_pinctrl_of_match[] __devinitdata = {
{ .compatible = "marvell,dove-pinctrl", .data = &dove_pinctrl_info },
{ }
};
static int __devinit dove_pinctrl_probe(struct platform_device *pdev)
{
const struct of_device_id *match =
of_match_device(dove_pinctrl_of_match, &pdev->dev);
pdev->dev.platform_data = 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))
clk_prepare_enable(clk);
return mvebu_pinctrl_probe(pdev);
}
static int __devexit dove_pinctrl_remove(struct platform_device *pdev)
{
int ret;
ret = mvebu_pinctrl_remove(pdev);
if (!IS_ERR(clk))
clk_disable_unprepare(clk);
return ret;
}
static struct platform_driver dove_pinctrl_driver = {
.driver = {
.name = "dove-pinctrl",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(dove_pinctrl_of_match),
},
.probe = dove_pinctrl_probe,
.remove = __devexit_p(dove_pinctrl_remove),
};
module_platform_driver(dove_pinctrl_driver);
MODULE_AUTHOR("Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>");
MODULE_DESCRIPTION("Marvell Dove pinctrl driver");
MODULE_LICENSE("GPL v2");
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