--- /dev/null
+/*
+ * arch/ubicom32/mach-ip7k/board-ip7500media.c
+ * Board file for IP7500 media board.
+ *
+ * Supports the following configuration
+ * CPU Module:
+ * P/N 8007-0510 rev 1.0 NOPHY
+ * P/N 8007-0511 rev 1.1 NOPHY
+ * DIP Switch SW2 configuration:
+ * POS 1: on = PCI enabled
+ * POS 2: off = TTYX => PF12
+ * POS 3: off = TTYY => PF15
+ * POS 4: unused
+ * Media Board:
+ * P/N 8007-0610 rev 1.0
+ *
+ * LCD Adapter Board: (optional)
+ * P/N 8007-0920 rev 2.0
+ * P/N 8007-0921 rev 2.1
+ *
+ * (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_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 ip7500media_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 ip7500media_portf_sd_cards[] = {
+ [0] = {
+ .pin_wp = IP7500MEDIA_IO16,
+ .wp_polarity = 1,
+ .pin_pwr = IP7500MEDIA_IO20,
+ .pin_cd = IP7500MEDIA_IO23,
+ },
+ [1] = {
+ .pin_wp = IP7500MEDIA_IO17,
+ .wp_polarity = 1,
+ .pin_pwr = IP7500MEDIA_IO21,
+ .pin_cd = IP7500MEDIA_IO24,
+ },
+};
+
+static struct ubicom32sd_platform_data ip7500media_portf_sd_platform_data = {
+ .ncards = 2,
+ .cards = ip7500media_portf_sd_cards,
+};
+
+static struct platform_device ip7500media_portf_sd_device = {
+ .name = "ubicom32sd",
+ .id = 0,
+ .resource = ip7500media_portf_sd_resources,
+ .num_resources = ARRAY_SIZE(ip7500media_portf_sd_resources),
+ .dev = {
+ .platform_data = &ip7500media_portf_sd_platform_data,
+ },
+
+};
+
+/*
+ * ip7500media_portf_sd_init
+ */
+static void ip7500media_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
+ */
+ ip7500media_portf_sd_resources[0].start = sd_node->dn.sendirq;
+ ip7500media_portf_sd_resources[1].start = sd_node->dn.recvirq;
+ ip7500media_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
+ ip7500media_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
+
+ platform_device_register(&ip7500media_portf_sd_device);
+}
+
+/******************************************************************************
+ * SD/IO Port B (Slot 2) platform data
+ */
+static struct resource ip7500media_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 ip7500media_portb_sd_cards[] = {
+ [0] = {
+ .pin_wp = IP7500MEDIA_IO19,
+ .wp_polarity = 1,
+ .pin_pwr = IP7500MEDIA_IO22,
+ .pin_cd = IP7500MEDIA_IO18,
+ },
+};
+
+static struct ubicom32sd_platform_data ip7500media_portb_sd_platform_data = {
+ .ncards = 1,
+ .cards = ip7500media_portb_sd_cards,
+};
+
+static struct platform_device ip7500media_portb_sd_device = {
+ .name = "ubicom32sd",
+ .id = 1,
+ .resource = ip7500media_portb_sd_resources,
+ .num_resources = ARRAY_SIZE(ip7500media_portb_sd_resources),
+ .dev = {
+ .platform_data = &ip7500media_portb_sd_platform_data,
+ },
+
+};
+
+/*
+ * ip7500media_portb_sd_init
+ */
+static void ip7500media_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
+ */
+ ip7500media_portb_sd_resources[0].start = sd_node->dn.sendirq;
+ ip7500media_portb_sd_resources[1].start = sd_node->dn.recvirq;
+ ip7500media_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
+ ip7500media_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
+
+ platform_device_register(&ip7500media_portb_sd_device);
+}
+
+/*
+ * ip7500media_u17_setup
+ * Called by I2C to tell us that u17 is setup.
+ *
+ * This function is called by I2C to tell us that u17 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 u17 is the SDIO
+ */
+static int __init ip7500media_u17_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
+{
+ /*
+ * Initialize the Port F/Port B SD slots (only the enabled ports will init)
+ */
+ ip7500media_portf_sd_init();
+ ip7500media_portb_sd_init();
+
+ return 0;
+}
+
+/******************************************************************************
+ * LCD VGH on the board at PE6
+ */
+static struct ubicom32lcdpower_platform_data ip7500media_lcdpower_data = {
+ .vgh_gpio = GPIO_RE_7,
+ .vgh_polarity = true,
+};
+
+static struct platform_device ip7500media_lcdpower_device = {
+ .name = "ubicom32lcdpower",
+ .id = -1,
+ .dev = {
+ .platform_data = &ip7500media_lcdpower_data,
+ },
+};
+
+/******************************************************************************
+ * Backlight on the board PD0, hardware PWM
+ */
+static struct ubicom32bl_platform_data ip7500media_backlight_data = {
+ .type = UBICOM32BL_TYPE_PWM,
+ .pwm_channel = 2,
+ .pwm_prescale = 15,
+ .pwm_period = 60,
+ .default_intensity = 0x80,
+};
+
+static struct platform_device ip7500media_backlight_device = {
+ .name = "ubicom32bl",
+ .id = -1,
+ .dev = {
+ .platform_data = &ip7500media_backlight_data,
+ },
+};
+
+/******************************************************************************
+ * Ubicom32Input on I2C, U15 MAX7310, address 0x18, 8 bits
+ */
+static struct ubicom32input_i2c_button ip7500media_ubicom32input_i2c_u15_buttons[] = {
+ {
+ .type = EV_KEY,
+ .code = KEY_LEFT,
+ .bit = 0,
+ .active_low = 1,
+ },
+ {
+ .type = EV_KEY,
+ .code = KEY_RIGHT,
+ .bit = 1,
+ .active_low = 1,
+ },
+ {
+ .type = EV_KEY,
+ .code = KEY_UP,
+ .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 ip7500media_ubicom32input_i2c_u15_platform_data = {
+ .buttons = ip7500media_ubicom32input_i2c_u15_buttons,
+ .nbuttons = ARRAY_SIZE(ip7500media_ubicom32input_i2c_u15_buttons),
+ .name = "Ubicom32 Input I2C U15",
+};
+
+/******************************************************************************
+ * Additional GPIO chips
+ */
+static struct pca953x_platform_data ip7500media_gpio_u16_platform_data = {
+ .gpio_base = IP7500MEDIA_U16_BASE,
+};
+
+static struct pca953x_platform_data ip7500media_gpio_u17_platform_data = {
+ .gpio_base = IP7500MEDIA_U17_BASE,
+ .setup = ip7500media_u17_setup,
+};
+
+static struct pca953x_platform_data ip7500media_gpio_u18_platform_data = {
+ .gpio_base = IP7500MEDIA_U18_BASE,
+};
+
+
+/******************************************************************************
+ * Touch controller present on LCD Adapter board
+ *
+ * Connected via I2C bus, interrupt on PD1
+ */
+#include <linux/i2c/tsc2007.h>
+
+/*
+ * ip7500media_tsc2007_exit_platform_hw
+ */
+static void ip7500media_tsc2007_exit_platform_hw(void)
+{
+ UBICOM32_IO_PORT(RD)->int_mask &= ~(1 << 11);
+ UBICOM32_IO_PORT(RD)->ctl2 &= ~(0x03 << 16);
+ gpio_free(GPIO_RD_1);
+}
+
+/*
+ * ip7500media_tsc2007_init_platform_hw
+ */
+static int ip7500media_tsc2007_init_platform_hw(void)
+{
+ int res = gpio_request(GPIO_RD_1, "TSC2007_IRQ");
+ if (res) {
+ return res;
+ }
+ UBICOM32_IO_PORT(RD)->function = 0;
+ UBICOM32_IO_PORT(RD)->int_mask = (1 << 11);
+ UBICOM32_IO_PORT(RD)->ctl2 &= ~(0x03 << 16);
+ UBICOM32_IO_PORT(RD)->ctl2 |= (0x02 << 16);
+
+ return 0;
+}
+
+/*
+ * ip7500media_tsc2007_clear_penirq
+ */
+static void ip7500media_tsc2007_clear_penirq(void)
+{
+ UBICOM32_IO_PORT(RD)->int_clr = (1 << 11);
+}
+
+/*
+ * ip7500media_tsc2007_get_pendown_state
+ */
+static int ip7500media_tsc2007_get_pendown_state(void)
+{
+ return !gpio_get_value(GPIO_RD_1);
+}
+
+static struct tsc2007_platform_data ip7500media_tsc2007_data = {
+ .model = 2007,
+ .x_plate_ohms = 350,
+ .get_pendown_state = ip7500media_tsc2007_get_pendown_state,
+ .init_platform_hw = ip7500media_tsc2007_init_platform_hw,
+ .exit_platform_hw = ip7500media_tsc2007_exit_platform_hw,
+ .clear_penirq = ip7500media_tsc2007_clear_penirq,
+};
+
+/******************************************************************************
+ * Devices on the I2C bus
+ *
+ * BEWARE of changing the order of things in this array as we depend on
+ * certain things to be in certain places.
+ */
+static struct i2c_board_info __initdata ip7500media_i2c_board_info[] = {
+ /*
+ * U6, CS4350 DAC, address 0x4B
+ */
+ {
+ .type = "cs4350",
+ .addr = 0x4B,
+ },
+
+ /*
+ * U14, S35390A RTC, address 0x30
+ */
+ {
+ .type = "s35390a",
+ .addr = 0x30,
+ },
+
+ /*
+ * U15, MAX7310 IO expander, 8 bits, address 0x18
+ * IO0: User I/O (J16-1) (Left) IO4: User I/O (J16-5) (Enter)
+ * IO1: User I/O (J16-2) (Right) IO5: User I/O (J16-6) (Menu)
+ * IO2: User I/O (J16-3) (Up) IO6: User I/O (J16-7) (Back)
+ * IO3: User I/O (J16-4) (Down) IO7: User I/O (J16-8)
+ */
+ {
+ .type = "ubicom32in_max7310",
+ .addr = 0x18,
+ .platform_data = &ip7500media_ubicom32input_i2c_u15_platform_data,
+ },
+
+ /*
+ * U16, MAX7310 IO expander, 8 bits, address 0x1C
+ * IO8 : User I/O (J16-9) IO12: User I/O (J16-17)
+ * IO9 : User I/O (J16-10) IO13: User I/O (J16-18)
+ * IO10: User I/O (J16-15) IO14: User I/O (J16-19)
+ * IO11: User I/O (J16-16) IO15: User I/O (J16-20)
+ */
+ {
+ .type = "max7310",
+ .addr = 0x1C,
+ .platform_data = &ip7500media_gpio_u16_platform_data,
+ },
+
+ /*
+ * U17, MAX7310 IO expander, 8 bits, address 0x1A
+ * IO16: SDIO1A_WP IO20: SD1A_PWREN
+ * IO17: SDIO1B_WP IO21: SD1B_PWREN
+ * IO18: SDIO2_CD IO22: SD2_PWREN
+ * IO19: SDIO2_WP IO23: SDIO1A_CD
+ *
+ */
+ {
+ .type = "max7310",
+ .addr = 0x1A,
+ .platform_data = &ip7500media_gpio_u17_platform_data,
+ },
+
+ /*
+ * U18, MAX7310 IOB expander, 8 bits, address 0x1E
+ * IO24: SDIO1B_CD IO28: User I/O TP6
+ * IO25: User I/O TP9 IO29: User I/O TP5
+ * IO26: User I/O TP8 IO30: User I/O TP4
+ * IO27: User I/O TP7 IO31: User I/O TP3
+ */
+ {
+ .type = "max7310",
+ .addr = 0x1E,
+ .platform_data = &ip7500media_gpio_u18_platform_data,
+ },
+};
+
+/*
+ * Additional I2C devices to add when a LCD adapter board is present
+ */
+static struct i2c_board_info __initdata ip7500media_lcd_adapter_i2c_board_info[] = {
+ {
+ I2C_BOARD_INFO("tsc2007", 0x48),
+ .irq = PORT_OTHER_INT(RD),
+ .platform_data = &ip7500media_tsc2007_data,
+ },
+};
+
+/*
+ * I2C bus on the board, SDA PE4, SCL PE5
+ */
+static struct i2c_gpio_platform_data ip7500media_i2c_data = {
+ .sda_pin = GPIO_RE_4,
+ .scl_pin = GPIO_RE_5,
+ .sda_is_open_drain = 0,
+ .scl_is_open_drain = 0,
+ .udelay = 50,
+};
+
+static struct platform_device ip7500media_i2c_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &ip7500media_i2c_data,
+ },
+};
+
+/*
+ * Virtual Frame Buffer device for use with LCD Adapter
+ */
+static struct platform_device ip7500media_vfb_device = {
+ .name = "ubicom32vfb",
+ .id = -1,
+};
+
+/*
+ * vdc_override:
+ * 0: no override (auto-detect)
+ * 1: force vdc usage
+ * 2: force lcd adapter usage
+ */
+static int __initdata vdc_override = 0;
+
+/*
+ * ip7500media_set_forcevdc
+ * Called when forcevdc is present on the kernel boot line
+ */
+static int __init ip7500media_set_forcevdc(char *str)
+{
+ if (str[0] == '1') {
+ vdc_override = 1;
+ } else {
+ vdc_override = 2;
+ }
+ return 1;
+}
+
+/*
+ * ip7500media_video_init
+ * Called late to determine what kind of video we have on this board
+ */
+static int __init ip7500media_video_init(void)
+{
+ struct i2c_adapter *adap;
+ struct i2c_msg msg[1];
+ unsigned char *data;
+ unsigned char checksum;
+ int err;
+ int i;
+
+ if (vdc_override == 1) {
+ printk(KERN_INFO "Force VDCTIO mode\n");
+ goto no_adapter;
+ }
+ if (vdc_override == 2) {
+ printk(KERN_INFO "Force LCD Adapter Board mode\n");
+ return 0;
+ }
+
+ /*
+ * Check to see if there is an EEPROM out there. If we see an
+ * EEPROM then we will assume a LCD Adapter Board (8007-092x)
+ * exists.
+ */
+ data = kmalloc(256, GFP_KERNEL);
+ if (!data) {
+ printk(KERN_WARNING "%s: Failed to allocate memory\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ adap = i2c_get_adapter(0);
+ if (!adap) {
+ printk(KERN_WARNING "%s: Failed to get i2c adapter\n", __FUNCTION__);
+ kfree(data);
+ return -ENODEV;
+ }
+ data[0] = 0;
+ msg->addr = 0x50;
+ msg->flags = 0;
+ msg->len = 1;
+ msg->buf = data;
+ err = i2c_transfer(adap, msg, 1);
+ if (err < 0) {
+ goto no_adapter;
+ }
+
+ msg->addr = 0x50;
+ msg->flags = I2C_M_RD;
+ msg->len = 256;
+ msg->buf = data;
+ err = i2c_transfer(adap, msg, 1);
+ if (err < 0) {
+ goto no_adapter;
+ }
+
+ i2c_put_adapter(adap);
+
+ /*
+ * Verify the checksum
+ */
+ checksum = 0xff;
+ for (i = 0; i < 255; i++) {
+ checksum ^= data[i];
+ }
+ if (checksum != data[255]) {
+ printk(KERN_WARNING "%s: Checksum mismatch\n", __FUNCTION__);
+ }
+
+ kfree(data);
+
+ /*
+ * Bring up VFB
+ */
+ platform_device_register(&ip7500media_vfb_device);
+
+ /*
+ * Add the i2c devices on the LCD Adapter board. (We have to use i2c_new_device
+ * since it's late in the boot process.)
+ */
+ printk(KERN_INFO "%s: registering LCD Adapter board i2c resources\n", __FUNCTION__);
+ for (i = 0; i < ARRAY_SIZE(ip7500media_lcd_adapter_i2c_board_info); i++) {
+ i2c_new_device(adap, &ip7500media_lcd_adapter_i2c_board_info[i]);
+ }
+
+ i2c_put_adapter(adap);
+
+ return 0;
+
+ /*
+ * No LCD Adapter board, bring up VDC
+ */
+no_adapter:
+ vdc_tio_init();
+ return 0;
+}
+late_initcall(ip7500media_video_init);
+__setup("forcevdc=", ip7500media_set_forcevdc);
+
+/*
+ * ip7500media_init
+ * Called to add the devices which we have on this board
+ */
+static int __init ip7500media_init(void)
+{
+ struct platform_device *audio_dev;
+ int have_ethernet = (devtree_find_node("eth_lan") != 0);
+
+ board_init();
+
+ ubi_gpio_init();
+
+#ifdef CONFIG_UIO_UBICOM32RING
+ ring_tio_init("decoder_ring");
+#endif
+
+ /*
+ * Register all of the devices we have on this board
+ */
+ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
+ platform_device_register(&ip7500media_i2c_device);
+ platform_device_register(&ip7500media_backlight_device);
+
+ /*
+ * If ethernet doesn't exist then we can init the lcdpower
+ */
+ if (!have_ethernet) {
+ platform_device_register(&ip7500media_lcdpower_device);
+ }
+
+ /*
+ * Allocate the audio drivers. SPDIF not supported on boards with ethernet.
+ */
+ audio_dev = audio_device_alloc("snd-ubi32-cs4350", "audio", "audio-i2sout", 0);
+ if (audio_dev) {
+ ip7500media_i2c_board_info[0].platform_data = audio_dev;
+ }
+
+ if (!have_ethernet) {
+ struct platform_device *audio_dev2;
+
+ audio_dev2 = audio_device_alloc("snd-ubi32-generic", "audio", "audio-spdifout", 0);
+ if (audio_dev2) {
+ platform_device_register(audio_dev2);
+ }
+ }
+
+ /*
+ * 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, ip7500media_i2c_board_info, ARRAY_SIZE(ip7500media_i2c_board_info));
+
+ /*
+ * We have to initialize the SDIO after the I2C IOB gets setup. SDIO is initialized in
+ * ip7500media_u17_setup
+ */
+
+ printk("IP7500 Media Board\n");
+
+ return 0;
+}
+
+arch_initcall(ip7500media_init);
projects / openwrt / svn-archive / archive.git / blobdiff