// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-omap1/board-nokia770.c
*
* Modified from board-generic.c
*/
#include <linux/clkdev.h>
#include <linux/irq.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio/machine.h>
#include <linux/gpio/property.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/input.h>
#include <linux/omapfb.h>
#include <linux/spi/spi.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/platform_data/keypad-omap.h>
#include <linux/platform_data/lcd-mipid.h>
#include <linux/platform_data/gpio-omap.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "mux.h"
#include "hardware.h"
#include "usb.h"
#include "common.h"
#include "clock.h"
#include "mmc.h"
static const struct software_node nokia770_mpuio_gpiochip_node = {
.name = "mpuio",
};
static const struct software_node nokia770_gpiochip1_node = {
.name = "gpio-0-15",
};
static const struct software_node nokia770_gpiochip2_node = {
.name = "gpio-16-31",
};
static const struct software_node *nokia770_gpiochip_nodes[] = {
&nokia770_mpuio_gpiochip_node,
&nokia770_gpiochip1_node,
&nokia770_gpiochip2_node,
NULL
};
#define ADS7846_PENDOWN_GPIO 15
static const unsigned int nokia770_keymap[] = {
KEY(1, 0, GROUP_0 | KEY_UP),
KEY(2, 0, GROUP_1 | KEY_F5),
KEY(0, 1, GROUP_0 | KEY_LEFT),
KEY(1, 1, GROUP_0 | KEY_ENTER),
KEY(2, 1, GROUP_0 | KEY_RIGHT),
KEY(0, 2, GROUP_1 | KEY_ESC),
KEY(1, 2, GROUP_0 | KEY_DOWN),
KEY(2, 2, GROUP_1 | KEY_F4),
KEY(0, 3, GROUP_2 | KEY_F7),
KEY(1, 3, GROUP_2 | KEY_F8),
KEY(2, 3, GROUP_2 | KEY_F6),
};
static struct resource nokia770_kp_resources[] = {
[0] = {
.start = INT_KEYBOARD,
.end = INT_KEYBOARD,
.flags = IORESOURCE_IRQ,
},
};
static const struct matrix_keymap_data nokia770_keymap_data = {
.keymap = nokia770_keymap,
.keymap_size = ARRAY_SIZE(nokia770_keymap),
};
static struct omap_kp_platform_data nokia770_kp_data = {
.rows = 8,
.cols = 8,
.keymap_data = &nokia770_keymap_data,
.delay = 4,
};
static struct platform_device nokia770_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &nokia770_kp_data,
},
.num_resources = ARRAY_SIZE(nokia770_kp_resources),
.resource = nokia770_kp_resources,
};
static struct platform_device *nokia770_devices[] __initdata = {
&nokia770_kp_device,
};
static struct mipid_platform_data nokia770_mipid_platform_data = { };
static const struct omap_lcd_config nokia770_lcd_config __initconst = {
.ctrl_name = "hwa742",
};
static const struct property_entry nokia770_mipid_props[] = {
PROPERTY_ENTRY_GPIO("reset-gpios", &nokia770_gpiochip1_node,
13, GPIO_ACTIVE_LOW),
{ }
};
static const struct software_node nokia770_mipid_swnode = {
.name = "lcd_mipid",
.properties = nokia770_mipid_props,
};
static void __init mipid_dev_init(void)
{
nokia770_mipid_platform_data.data_lines = 16;
omapfb_set_lcd_config(&nokia770_lcd_config);
}
static const struct property_entry nokia770_ads7846_props[] = {
PROPERTY_ENTRY_STRING("compatible", "ti,ads7846"),
PROPERTY_ENTRY_U32("touchscreen-size-x", 4096),
PROPERTY_ENTRY_U32("touchscreen-size-y", 4096),
PROPERTY_ENTRY_U32("touchscreen-max-pressure", 256),
PROPERTY_ENTRY_U32("touchscreen-average-samples", 10),
PROPERTY_ENTRY_U16("ti,x-plate-ohms", 180),
PROPERTY_ENTRY_U16("ti,debounce-tol", 3),
PROPERTY_ENTRY_U16("ti,debounce-rep", 1),
PROPERTY_ENTRY_GPIO("pendown-gpios", &nokia770_gpiochip1_node,
ADS7846_PENDOWN_GPIO, GPIO_ACTIVE_LOW),
{ }
};
static const struct software_node nokia770_ads7846_swnode = {
.name = "ads7846",
.properties = nokia770_ads7846_props,
};
static struct spi_board_info nokia770_spi_board_info[] __initdata = {
[0] = {
.modalias = "lcd_mipid",
.bus_num = 2,
.chip_select = 3,
.max_speed_hz = 12000000,
.platform_data = &nokia770_mipid_platform_data,
.swnode = &nokia770_mipid_swnode,
},
[1] = {
.modalias = "ads7846",
.bus_num = 2,
.chip_select = 0,
.max_speed_hz = 2500000,
.swnode = &nokia770_ads7846_swnode,
},
};
static void __init hwa742_dev_init(void)
{
clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
}
/* assume no Mini-AB port */
static struct omap_usb_config nokia770_usb_config __initdata = {
.otg = 1,
.register_host = 1,
.register_dev = 1,
.hmc_mode = 16,
.pins[0] = 6,
.extcon = "tahvo-usb",
};
#if IS_ENABLED(CONFIG_MMC_OMAP)
static struct gpiod_lookup_table nokia770_mmc_gpio_table = {
.dev_id = "mmci-omap.1",
.table = {
/* Slot index 0, VSD power, GPIO 41 */
GPIO_LOOKUP_IDX("gpio-32-47", 9,
"vsd", 0, GPIO_ACTIVE_HIGH),
/* Slot index 0, switch, GPIO 23 */
GPIO_LOOKUP_IDX("gpio-16-31", 7,
"cover", 0, GPIO_ACTIVE_HIGH),
{ }
},
};
static struct omap_mmc_platform_data nokia770_mmc2_data = {
.nr_slots = 1,
.max_freq = 12000000,
.slots[0] = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.name = "mmcblk",
},
};
static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
static void __init nokia770_mmc_init(void)
{
gpiod_add_lookup_table(&nokia770_mmc_gpio_table);
/* Only the second MMC controller is used */
nokia770_mmc_data[1] = &nokia770_mmc2_data;
omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
}
#else
static inline void nokia770_mmc_init(void)
{
}
#endif
#if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
static const struct software_node_ref_args nokia770_cbus_gpio_refs[] = {
SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 9, 0),
SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 10, 0),
SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 11, 0),
};
static const struct property_entry nokia770_cbus_props[] = {
PROPERTY_ENTRY_REF_ARRAY("gpios", nokia770_cbus_gpio_refs),
{ }
};
static struct platform_device nokia770_cbus_device = {
.name = "i2c-cbus-gpio",
.id = 2,
};
static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
{
I2C_BOARD_INFO("retu", 0x01),
},
{
I2C_BOARD_INFO("tahvo", 0x02),
},
};
static void __init nokia770_cbus_init(void)
{
struct gpio_desc *d;
int irq;
d = gpiod_get(NULL, "retu_irq", GPIOD_IN);
if (IS_ERR(d)) {
pr_err("Unable to get CBUS Retu IRQ GPIO descriptor\n");
} else {
irq = gpiod_to_irq(d);
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
nokia770_i2c_board_info_2[0].irq = irq;
}
d = gpiod_get(NULL, "tahvo_irq", GPIOD_IN);
if (IS_ERR(d)) {
pr_err("Unable to get CBUS Tahvo IRQ GPIO descriptor\n");
} else {
irq = gpiod_to_irq(d);
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
nokia770_i2c_board_info_2[1].irq = irq;
}
i2c_register_board_info(2, nokia770_i2c_board_info_2,
ARRAY_SIZE(nokia770_i2c_board_info_2));
device_create_managed_software_node(&nokia770_cbus_device.dev,
nokia770_cbus_props, NULL);
platform_device_register(&nokia770_cbus_device);
}
#else /* CONFIG_I2C_CBUS_GPIO */
static void __init nokia770_cbus_init(void)
{
}
#endif /* CONFIG_I2C_CBUS_GPIO */
static struct gpiod_lookup_table nokia770_irq_gpio_table = {
.dev_id = NULL,
.table = {
/* GPIO used by SPI device 1 */
GPIO_LOOKUP("gpio-0-15", 15, "ads7846_irq",
GPIO_ACTIVE_HIGH),
/* GPIO used for retu IRQ */
GPIO_LOOKUP("gpio-48-63", 15, "retu_irq",
GPIO_ACTIVE_HIGH),
/* GPIO used for tahvo IRQ */
GPIO_LOOKUP("gpio-32-47", 8, "tahvo_irq",
GPIO_ACTIVE_HIGH),
/* GPIOs used by serial wakeup IRQs */
GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0,
GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1,
GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2,
GPIO_ACTIVE_HIGH),
{ }
},
};
static void __init omap_nokia770_init(void)
{
struct gpio_desc *d;
/* On Nokia 770, the SleepX signal is masked with an
* MPUIO line by default. It has to be unmasked for it
* to become functional */
/* SleepX mask direction */
omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
/* Unmask SleepX signal */
omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
software_node_register_node_group(nokia770_gpiochip_nodes);
platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
gpiod_add_lookup_table(&nokia770_irq_gpio_table);
d = gpiod_get(NULL, "ads7846_irq", GPIOD_IN);
if (IS_ERR(d))
pr_err("Unable to get ADS7846 IRQ GPIO descriptor\n");
else
nokia770_spi_board_info[1].irq = gpiod_to_irq(d);
spi_register_board_info(nokia770_spi_board_info,
ARRAY_SIZE(nokia770_spi_board_info));
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
hwa742_dev_init();
mipid_dev_init();
omap1_usb_init(&nokia770_usb_config);
nokia770_mmc_init();
nokia770_cbus_init();
}
MACHINE_START(NOKIA770, "Nokia 770")
.atag_offset = 0x100,
.map_io = omap1_map_io,
.init_early = omap1_init_early,
.init_irq = omap1_init_irq,
.init_machine = omap_nokia770_init,
.init_late = omap1_init_late,
.init_time = omap1_timer_init,
.restart = omap1_restart,
MACHINE_END
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