+++ /dev/null
-/*
- * arch/ubicom32/mach-ip7k/board-ip7145dpf.c
- * Board file for IP7145DPF, rev 1.0, P/N 8007-0410
- *
- * (C) Copyright 2009, Ubicom, Inc.
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port 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.
- *
- * The Ubicom32 Linux Kernel Port is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-
-#include <linux/input.h>
-
-#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
-#include <linux/i2c/pca953x.h>
-
-#include <asm/board.h>
-#include <asm/machdep.h>
-#include <asm/ubicom32input.h>
-#include <asm/ubicom32input_i2c.h>
-#include <asm/ubicom32bl.h>
-#include <asm/ubicom32lcdpower.h>
-#include <asm/vdc_tio.h>
-
-#include <asm/ubicom32sd.h>
-#include <asm/sd_tio.h>
-#include <asm/devtree.h>
-#include <asm/audio.h>
-
-#include <asm/ring_tio.h>
-
-/******************************************************************************
- * SD/IO Port F (Slot 1) platform data
- */
-static struct resource ip7145dpf_portf_sd_resources[] = {
- /*
- * Send IRQ
- */
- [0] = {
- /*
- * The init routine will query the devtree and fill this in
- */
- .flags = IORESOURCE_IRQ,
- },
-
- /*
- * Receive IRQ
- */
- [1] = {
- /*
- * The init routine will query the devtree and fill this in
- */
- .flags = IORESOURCE_IRQ,
- },
-
- /*
- * Memory Mapped Registers
- */
- [2] = {
- /*
- * The init routine will query the devtree and fill this in
- */
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct ubicom32sd_card ip7145dpf_portf_sd_cards[] = {
- [0] = {
- .pin_wp = IP7145DPF_IOB0,
- .wp_polarity = 1,
- .pin_pwr = IP7145DPF_IOB4,
- .pin_cd = GPIO_RA_4,
- },
- [1] = {
- .pin_wp = IP7145DPF_IOB1,
- .wp_polarity = 1,
- .pin_pwr = IP7145DPF_IOB5,
- .pin_cd = GPIO_RA_6,
- },
-};
-
-static struct ubicom32sd_platform_data ip7145dpf_portf_sd_platform_data = {
- .ncards = 2,
- .cards = ip7145dpf_portf_sd_cards,
-};
-
-static struct platform_device ip7145dpf_portf_sd_device = {
- .name = "ubicom32sd",
- .id = 0,
- .resource = ip7145dpf_portf_sd_resources,
- .num_resources = ARRAY_SIZE(ip7145dpf_portf_sd_resources),
- .dev = {
- .platform_data = &ip7145dpf_portf_sd_platform_data,
- },
-
-};
-
-/*
- * ip7145dpf_portf_sd_init
- */
-static void ip7145dpf_portf_sd_init(void)
-{
- /*
- * Check the device tree for the sd_tio
- */
- struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
- if (!sd_node) {
- printk(KERN_INFO "PortF SDTIO not found\n");
- return;
- }
-
- /*
- * Fill in the resources and platform data from devtree information
- */
- ip7145dpf_portf_sd_resources[0].start = sd_node->dn.sendirq;
- ip7145dpf_portf_sd_resources[1].start = sd_node->dn.recvirq;
- ip7145dpf_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
- ip7145dpf_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
-
- platform_device_register(&ip7145dpf_portf_sd_device);
-}
-
-/******************************************************************************
- * SD/IO Port B (Slot 2) platform data
- */
-static struct resource ip7145dpf_portb_sd_resources[] = {
- /*
- * Send IRQ
- */
- [0] = {
- /*
- * The init routine will query the devtree and fill this in
- */
- .flags = IORESOURCE_IRQ,
- },
-
- /*
- * Receive IRQ
- */
- [1] = {
- /*
- * The init routine will query the devtree and fill this in
- */
- .flags = IORESOURCE_IRQ,
- },
-
- /*
- * Memory Mapped Registers
- */
- [2] = {
- /*
- * The init routine will query the devtree and fill this in
- */
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct ubicom32sd_card ip7145dpf_portb_sd_cards[] = {
- [0] = {
- .pin_wp = IP7145DPF_IOB2,
- .wp_polarity = 1,
- .pin_pwr = IP7145DPF_IOB6,
- .pin_cd = IP7145DPF_IOB3,
- },
-};
-
-static struct ubicom32sd_platform_data ip7145dpf_portb_sd_platform_data = {
- .ncards = 1,
- .cards = ip7145dpf_portb_sd_cards,
-};
-
-static struct platform_device ip7145dpf_portb_sd_device = {
- .name = "ubicom32sd",
- .id = 1,
- .resource = ip7145dpf_portb_sd_resources,
- .num_resources = ARRAY_SIZE(ip7145dpf_portb_sd_resources),
- .dev = {
- .platform_data = &ip7145dpf_portb_sd_platform_data,
- },
-
-};
-
-/*
- * ip7145dpf_portb_sd_init
- */
-static void ip7145dpf_portb_sd_init(void)
-{
- /*
- * Check the device tree for the sd_tio
- */
- struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
- if (!sd_node) {
- printk(KERN_INFO "PortB SDTIO not found\n");
- return;
- }
-
- /*
- * Fill in the resources and platform data from devtree information
- */
- ip7145dpf_portb_sd_resources[0].start = sd_node->dn.sendirq;
- ip7145dpf_portb_sd_resources[1].start = sd_node->dn.recvirq;
- ip7145dpf_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
- ip7145dpf_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
-
- platform_device_register(&ip7145dpf_portb_sd_device);
-}
-
-
-#ifdef IP7145DPF_USE_MMC_SPI
-/******************************************************************************
- * SPI over GPIO (MMC_SPI)
- */
-#include <linux/spi/spi.h>
-#include <linux/spi/mmc_spi.h>
-#include <linux/mmc/host.h>
-#include <asm/ubicom32-spi-gpio.h>
-
-#define MMC_CS GPIO_RF_5 // PF5 D3
-#define MMC_CD GPIO_RA_4 // PA4 CD
-#define MMC_WP IP7145DPF_IOB0 // IOB0 WP
-#define MMC_PWR IP7145DPF_IOB4 // IOB4 PWR
-
-/*
- * SPI bus over GPIO (for SD card)
- */
-static struct ubicom32_spi_gpio_platform_data ip7145dpf_spi_gpio_data = {
- .pin_mosi = GPIO_RF_0, // PF0 CMD
- .pin_miso = GPIO_RF_2, // PF2 D0
- .pin_clk = GPIO_RF_1, // PF1 CLK
- .bus_num = 0, // We'll call this SPI bus 0
- .num_chipselect = 1, // only one device on this SPI bus
-};
-
-static struct platform_device ip7145dpf_spi_gpio_device = {
- .name = "ubicom32-spi-gpio",
- .id = 0,
- .dev = {
- .platform_data = &ip7145dpf_spi_gpio_data,
- },
-};
-
-/*
- * ip7145dpf_mmc_spi_setpower_slot_a
- * Set the power state for slot A
- */
-static void ip7145dpf_mmc_spi_setpower_slot_a(struct device *dev, unsigned int vdd)
-{
- struct mmc_spi_platform_data *pd = dev->platform_data;
-
- /*
- * Power is inverted, we could tell the IOB to do it, but it's cleaner this way.
- */
- if ((1 << vdd) & pd->ocr_mask) {
- gpio_set_value(MMC_PWR, 0);
- return;
- }
- gpio_set_value(MMC_PWR, 1);
-}
-
-/*
- * ip7145dpf_mmc_spi_get_cd_slot_a
- * Get the CD bit for slot A
- */
-static int ip7145dpf_mmc_spi_get_cd_slot_a(struct device *dev)
-{
- /*
- * Note that the sense of the GPIO is inverted
- */
- return !gpio_get_value(MMC_CD);
-}
-
-/*
- * ip7145dpf_mmc_spi_get_ro_slot_a
- * Get the WP bit for slot A
- */
-static int ip7145dpf_mmc_spi_get_ro_slot_a(struct device *dev)
-{
- /*
- * Note that the sense of the GPIO is inverted, we could tell the IOB to do it, but
- * it's clearer this way.
- */
- return !gpio_get_value(MMC_WP);
-}
-
-/*
- * ip7145dpf_mmc_spi_exit_slot_a
- * Free the appropriate GPIOs for slot A SD slot.
- */
-static void ip7145dpf_mmc_spi_exit_slot_a(struct device *dev, void *appdata)
-{
- gpio_free(MMC_CD);
- gpio_free(MMC_CS);
- gpio_free(MMC_WP);
- gpio_free(MMC_PWR);
- platform_device_unregister(&ip7145dpf_spi_gpio_device);
-}
-
-/*
- * ip7145dpf_mmc_spi_init_slot_a
- * Allocate the appropriate GPIOs for slot A SD slot.
- * WP is on IOB0, CD is PA4, CS is on PF5
- * TODO: make CD an interrupt
- */
-static int ip7145dpf_mmc_spi_init_slot_a(void)
-{
- int ret = gpio_request(MMC_CD, "mmc-a-cd");
- if (ret) {
- printk(KERN_ERR "%s: could not request mmc-a-cd pin\n", __FUNCTION__);
- return -ENOSYS;
- }
- gpio_direction_input(MMC_CD);
-
- ret = gpio_request(MMC_CS, "mmc-a-cs");
- if (ret) {
- printk(KERN_ERR "%s: could not request mmc-a-cs pin\n", __FUNCTION__);
- goto no_cs;
- }
- gpio_direction_output(MMC_CS, 0);
-
- ret = gpio_request(MMC_WP, "mmc-a-wp");
- if (ret) {
- printk(KERN_ERR "%s: could not request mmc-a-wp pin\n", __FUNCTION__);
- goto no_wp;
- }
- gpio_direction_input(MMC_WP);
-
- /*
- * Start off with power off
- */
- ret = gpio_request(MMC_PWR, "mmc-a-pwr");
- if (ret) {
- printk(KERN_ERR "%s: could not request mmc-a-pwr pin\n", __FUNCTION__);
- goto no_pwr;
- }
- ret = gpio_direction_output(MMC_PWR, 1);
-
- return 0;
-
-no_pwr:
- gpio_free(MMC_WP);
-
-no_wp:
- gpio_free(MMC_CS);
-
-no_cs:
- gpio_free(MMC_CD);
- return -ENOSYS;
-}
-
-/*
- * MMC_SPI driver (currently bitbang)
- */
-static struct mmc_spi_platform_data ip7145dpf_mmc_platform_data = {
- .ocr_mask = MMC_VDD_33_34,
- .exit = ip7145dpf_mmc_spi_exit_slot_a,
- .get_ro = ip7145dpf_mmc_spi_get_ro_slot_a,
- .get_cd = ip7145dpf_mmc_spi_get_cd_slot_a,
-
- .setpower = ip7145dpf_mmc_spi_setpower_slot_a,
- .powerup_msecs = 500,
-
- .detect_delay = 100,
-
- .caps = MMC_CAP_NEEDS_POLL,
-};
-
-static struct ubicom32_spi_gpio_controller_data ip7145dpf_mmc_controller_data = {
- .pin_cs = MMC_CS,
-};
-
-static struct spi_board_info ip7145dpf_spi_board_info[] = {
- {
- .modalias = "mmc_spi",
- .bus_num = 0,
- .chip_select = 0,
- .max_speed_hz = 2000000,
- .platform_data = &ip7145dpf_mmc_platform_data,
- .controller_data = &ip7145dpf_mmc_controller_data,
- }
-};
-#endif /* IP7145DPF_USE_MMC_SPI */
-
-/*
- * ip7145dpf_u72_setup
- * Called by I2C to tell us that u72 is setup.
- *
- * This function is called by I2C to tell us that u72 has been setup. All
- * devices which rely on this chip being initialized (or even present) need to
- * be initialized in this function otherwise they may get initialized too early.
- *
- * Currently the only device depending on u72 is the SPI
- */
-static int __init ip7145dpf_u72_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
-{
-#ifdef IP7145DPF_USE_MMC_SPI
- if (ip7145dpf_mmc_spi_init_slot_a()) {
- printk(KERN_ERR "%s: could not request mmc resources\n", __FUNCTION__);
- } else {
- printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
- spi_register_board_info(ip7145dpf_spi_board_info, ARRAY_SIZE(ip7145dpf_spi_board_info));
- platform_device_register(&ip7145dpf_spi_gpio_device);
- }
-#else
- /*
- * Initialize the Port F/Port B SD slots
- */
- ip7145dpf_portf_sd_init();
- ip7145dpf_portb_sd_init();
-#endif
- return 0;
-}
-
-/******************************************************************************
- * LCD VGH on the board at PE6
- */
-static struct ubicom32lcdpower_platform_data ip7145dpf_lcdpower_data = {
- .vgh_gpio = GPIO_RE_6,
- .vgh_polarity = true,
-};
-
-static struct platform_device ip7145dpf_lcdpower_device = {
- .name = "ubicom32lcdpower",
- .id = -1,
- .dev = {
- .platform_data = &ip7145dpf_lcdpower_data,
- },
-};
-
-/******************************************************************************
- * Backlight on the board PD0, hardware PWM
- */
-static struct ubicom32bl_platform_data ip7145dpf_backlight_data = {
- .type = UBICOM32BL_TYPE_PWM,
- .pwm_channel = 2,
- .pwm_prescale = 15,
- .pwm_period = 60,
- .default_intensity = 0x80,
-};
-
-static struct platform_device ip7145dpf_backlight_device = {
- .name = "ubicom32bl",
- .id = -1,
- .dev = {
- .platform_data = &ip7145dpf_backlight_data,
- },
-};
-
-/******************************************************************************
- * Ubicom32Input on I2C, U48 MAX7310, address 0x18, 8 bits
- */
-static struct ubicom32input_i2c_button ip7145dpf_ubicom32input_i2c_u48_buttons[] = {
- {
- .type = EV_KEY,
- .code = KEY_UP,
- .bit = 0,
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_LEFT,
- .bit = 1,
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_RIGHT,
- .bit = 2,
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_DOWN,
- .bit = 3,
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_ENTER,
- .bit = 4,
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_MENU,
- .bit = 5,
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_ESC,
- .bit = 6,
- .active_low = 1,
- },
-};
-
-static struct ubicom32input_i2c_platform_data ip7145dpf_ubicom32input_i2c_u48_platform_data = {
- .buttons = ip7145dpf_ubicom32input_i2c_u48_buttons,
- .nbuttons = ARRAY_SIZE(ip7145dpf_ubicom32input_i2c_u48_buttons),
- .name = "Ubicom32 Input I2C U48",
-};
-
-/******************************************************************************
- * Additional GPIO chips
- */
-static struct pca953x_platform_data ip7145dpf_gpio_u72_platform_data = {
- .gpio_base = IP7145DPF_U72_BASE,
- .setup = ip7145dpf_u72_setup,
-};
-
-/******************************************************************************
- * Devices on the I2C bus
- */
-static struct i2c_board_info __initdata ip7145dpf_i2c_board_info[] = {
- /*
- * U51, S35390A RTC, address 0x30
- */
- {
- .type = "s35390a",
- .addr = 0x30,
- },
-
- /*
- * U48, MAX7310 IO expander, 8 bits, address 0x18
- */
- {
- .type = "ubicom32in_max7310",
- .addr = 0x18,
- .platform_data = &ip7145dpf_ubicom32input_i2c_u48_platform_data,
- },
-
- /*
- * U72, MAX7310 IOB expander, 8 bits, address 0x19
- */
- {
- .type = "max7310",
- .addr = 0x19,
- .platform_data = &ip7145dpf_gpio_u72_platform_data,
- },
-};
-
-/*
- * I2C bus on the board, SDA PE1, SCL PE2
- */
-static struct i2c_gpio_platform_data ip7145dpf_i2c_data = {
- .sda_pin = GPIO_RE_1,
- .scl_pin = GPIO_RE_2,
- .sda_is_open_drain = 0,
- .scl_is_open_drain = 0,
-};
-
-static struct platform_device ip7145dpf_i2c_device = {
- .name = "i2c-gpio",
- .id = 0,
- .dev = {
- .platform_data = &ip7145dpf_i2c_data,
- },
-};
-
-/******************************************************************************
- * Use ubicom32input driver to monitor the various pushbuttons on this board.
- *
- * WPS PF12
- * FACT_DEFAULT PF13
- * POWER PE4
- *
- * Not sutable for the keypad buttons since those run on I2C GPIO. The polling
- * of ubicom32input would seem to be excessive for this.
- *
- * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
- */
-static struct ubicom32input_button ip7145dpf_ubicom32input_buttons[] = {
- {
- .type = EV_KEY,
- .code = KEY_FN_F1,
- .gpio = GPIO_RF_12,
- .desc = "WPS",
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_FN_F2,
- .gpio = GPIO_RF_13,
- .desc = "Factory Default",
- .active_low = 1,
- },
- {
- .type = EV_KEY,
- .code = KEY_POWER,
- .gpio = GPIO_RE_4,
- .desc = "Power",
- .active_low = 1,
- },
-};
-
-static struct ubicom32input_platform_data ip7145dpf_ubicom32input_data = {
- .buttons = ip7145dpf_ubicom32input_buttons,
- .nbuttons = ARRAY_SIZE(ip7145dpf_ubicom32input_buttons),
-};
-
-static struct platform_device ip7145dpf_ubicom32input_device = {
- .name = "ubicom32input",
- .id = -1,
- .dev = {
- .platform_data = &ip7145dpf_ubicom32input_data,
- },
-};
-
-/*
- * List of all devices in our system
- */
-static struct platform_device *ip7145dpf_devices[] __initdata = {
- &ip7145dpf_i2c_device,
- &ip7145dpf_lcdpower_device,
- &ip7145dpf_backlight_device,
- &ip7145dpf_ubicom32input_device,
-};
-
-/*
- * ip7145dpf_power_off
- * Called to turn the power off for this board
- */
-static void ip7145dpf_power_off(void)
-{
- gpio_set_value(GPIO_RE_5, 0);
-}
-
-/*
- * ip7145dpf_init
- * Called to add the devices which we have on this board
- */
-static int __init ip7145dpf_init(void)
-{
- int ret;
- struct platform_device *audio_dev;
-
- ubi_gpio_init();
-
-#ifdef CONFIG_UIO_UBICOM32RING
- ring_tio_init("decoder_ring");
-#endif
-
- /*
- * Start up the video driver first
- */
- vdc_tio_init();
-
- /*
- * Take over holding of the power from the system
- */
- ret = gpio_request(GPIO_RE_5, "power_hold");
- if (ret) {
- printk(KERN_ERR "%s: could not request power hold GPIO\n", __FUNCTION__);
- }
- gpio_direction_output(GPIO_RE_5, 1);
- mach_power_off = ip7145dpf_power_off;
-
- /*
- * USB SEL_HOST_USB line
- */
- ret = gpio_request(GPIO_RF_11, "SEL_HOST_USB");
- if (ret) {
- printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__);
- }
- gpio_direction_output(GPIO_RF_11, 0);
-
- /*
- * Setup audio
- */
- audio_dev = audio_device_alloc("snd-ubi32-generic", "audio", "audio-i2sout", 0);
- if (audio_dev) {
- platform_device_register(audio_dev);
- }
-
- /*
- * Register all of the devices we have on this board
- */
- printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
- platform_add_devices(ip7145dpf_devices, ARRAY_SIZE(ip7145dpf_devices));
-
- /*
- * Register all of the devices which sit on the I2C bus
- */
- printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
- i2c_register_board_info(0, ip7145dpf_i2c_board_info, ARRAY_SIZE(ip7145dpf_i2c_board_info));
-
- /*
- * We have to initialize the SPI after the I2C IOB gets setup. SPI is initialized in
- * ip7145dpf_u72_setup
- */
-
- return 0;
-}
-
-arch_initcall(ip7145dpf_init);
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