diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-nokia770.c')
| -rw-r--r-- | arch/arm/mach-omap1/board-nokia770.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c new file mode 100644 index 0000000000..3312ef9335 --- /dev/null +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -0,0 +1,351 @@ +// 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 |