--- /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);
projects / openwrt.git / blobdiff