+++ /dev/null
-/*
- * arch/ubicom32/mach-ip7k/board-ip7500av.c
- * Support for IP7500 Audio Video Board + CPU module board.
- *
- * This file supports the IP7500 Audio Video Board:
- * 8007-0810 Rev 1.0
- * with one of the following CPU module boards:
- * 8007-0510 Rev 1.0
- * 8007-0510A Rev 1.0 (with ethernet)
- *
- * DIP Switch SW2 configuration: (*) default
- * POS 1: on(*) = PCI enabled, off = PCI disabled
- * POS 2: on(*) = TTYX => PA6, off = TTYX => PF12
- * POS 3: on(*) = TTYY => PA7, off = TTYY => PF15
- * POS 4: unused
- *
- * (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/>.
- */
-
-#include <linux/platform_device.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
-#include <linux/delay.h>
-#include <asm/board.h>
-#include <asm/machdep.h>
-#include <asm/ring_tio.h>
-#include <asm/vdc_tio.h>
-#include <asm/audio.h>
-#include <asm/ubi32-pcm.h>
-#include <asm/ubi32-cs4384.h>
-
-/******************************************************************************
- * 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 ip7500av_i2c_board_info[] = {
- /*
- * U6, CS4384 DAC, address 0x19
- */
- {
- .type = "cs4384",
- .addr = 0x19,
- },
-};
-
-/*
- * I2C bus on the board, SDA PD1, SCL PD2
- */
-static struct i2c_gpio_platform_data ip7500av_i2c_data = {
- .sda_pin = GPIO_RD_6,
- .scl_pin = GPIO_RD_3,
- .sda_is_open_drain = 0,
- .scl_is_open_drain = 0,
- .udelay = 50,
-};
-
-static struct platform_device ip7500av_i2c_device = {
- .name = "i2c-gpio",
- .id = 0,
- .dev = {
- .platform_data = &ip7500av_i2c_data,
- },
-};
-
-/*
- * List of possible mclks we can generate. This depends on the CPU frequency.
- */
-static struct ubi32_cs4384_mclk_entry ip7500av_cs4384_mclk_entries[] = {
- {
- .rate = 12288000,
- .div = 44,
- },
- {
- .rate = 11289600,
- .div = 48,
- },
-};
-
-/*
- * List of all devices in our system
- */
-static struct platform_device *ip7500av_devices[] __initdata = {
- &ip7500av_i2c_device,
-};
-
-/*
- * ip7500av_vdac_write
- */
-static int __init ip7500av_vdac_write(int reg, int val)
-{
- struct i2c_adapter *adap;
- struct i2c_msg msg[1];
- unsigned char data[2];
- int err;
-
- adap = i2c_get_adapter(0);
- if (!adap) {
- printk(KERN_WARNING "%s: failed to get i2c adapter\n", __FUNCTION__);
- return -ENODEV;
- }
- msg->addr = 0x2B;
- msg->flags = 0;
- msg->len = 2;
- msg->buf = data;
- data[0] = reg;
- data[1] = val;
- err = i2c_transfer(adap, msg, 1);
- i2c_put_adapter(adap);
- if (err >= 0) {
- return 0;
- }
- return err;
-}
-
-/*
- * ip7500av_vdac_init
- * Initializes the video DAC via I2C
- *
- * Equivalent mode line: 720x480p = 27 Mhz, 720 736 800 858 480 484 492 525
- */
-static int __init ip7500av_vdac_init(void)
-{
- int err;
-
- printk(KERN_INFO "Initializing ADV7393 DAC\n");
-
- /*
- * Reset the VDAC
- */
- if (gpio_request(GPIO_RF_6, "VDAC Reset")) {
- printk(KERN_WARNING "%s: failed to allocate VDAC Reset\n", __FUNCTION__);
- return -EBUSY;
- }
- gpio_direction_output(GPIO_RF_6, 0);
- udelay(1);
- gpio_set_value(GPIO_RF_6, 1);
-
- /*
- * See table 100 of ADV7393 data sheet: 16-bit 525p YCrCb In, YPbPr Out
- */
- err = ip7500av_vdac_write(0x17, 0x02);
- if (err) {
- printk(KERN_WARNING "%s: failed to write VDAC\n", __FUNCTION__);
- return err;
- }
- err = ip7500av_vdac_write(0x00, 0x1c);
- if (err) {
- printk(KERN_WARNING "%s: failed to write VDAC\n", __FUNCTION__);
- return err;
- }
- err = ip7500av_vdac_write(0x01, 0x10);
- if (err) {
- printk(KERN_WARNING "%s: failed to write VDAC\n", __FUNCTION__);
- return err;
- }
- err = ip7500av_vdac_write(0x31, 0x01);
- if (err) {
- printk(KERN_WARNING "%s: failed to write VDAC\n", __FUNCTION__);
- return err;
- }
-#ifdef IP7500AV_VDAC_SWAP_PBPR
- err = ip7500av_vdac_write(0x35, 0x08);
- if (err) {
- printk(KERN_WARNING "%s: failed to write VDAC\n", __FUNCTION__);
- return err;
- }
-#endif
-#ifdef IP7500AV_VDAC_FULL_RANGE
- err = ip7500av_vdac_write(0x30, 0x02);
- if (err) {
- printk(KERN_WARNING "%s: failed to write VDAC\n", __FUNCTION__);
- return err;
- }
-#endif
- return 0;
-}
-late_initcall(ip7500av_vdac_init);
-
-/*
- * ip7500av_init
- * Called to add the devices which we have on this board
- */
-static int __init ip7500av_init(void)
-{
- struct platform_device *audio_dev;
- struct platform_device *audio_dev2;
- struct ubi32_cs4384_platform_data *cs4384_pd;
-
- board_init();
-
- ubi_gpio_init();
-
- vdc_tio_init();
-
- printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
- platform_add_devices(ip7500av_devices, ARRAY_SIZE(ip7500av_devices));
-
- /*
- * CS4384 DAC
- */
- audio_dev = audio_device_alloc("snd-ubi32-cs4384", "audio", "audio-i2sout",
- sizeof(struct ubi32_cs4384_platform_data));
- if (audio_dev) {
- /*
- * Attempt to figure out a good divisor. This will only work
- * assuming the core frequency is compatible.
- */
- int i;
- unsigned int freq = processor_frequency();
- for (i = 0; i < ARRAY_SIZE(ip7500av_cs4384_mclk_entries); i++) {
- unsigned int div;
- unsigned int rate = ip7500av_cs4384_mclk_entries[i].rate / 1000;
- div = ((freq / rate) + 500) / 1000;
- ip7500av_cs4384_mclk_entries[i].div = div;
- printk("CS4384 mclk %d rate %u000Hz div %u act %u\n", i, rate, div, freq / div);
- }
-
- cs4384_pd = audio_device_priv(audio_dev);
- cs4384_pd->mclk_src = UBI32_CS4384_MCLK_PWM_0;
- cs4384_pd->n_mclk = ARRAY_SIZE(ip7500av_cs4384_mclk_entries);
- cs4384_pd->mclk_entries = ip7500av_cs4384_mclk_entries;
- ip7500av_i2c_board_info[0].platform_data = audio_dev;
-
- /*
- * Reset the DAC
- */
- if (gpio_request(GPIO_RF_4, "DAC Reset") == 0) {
- gpio_direction_output(GPIO_RF_4, 0);
- udelay(1);
- gpio_direction_output(GPIO_RF_4, 1);
- } else {
- printk("Unable to request DAC reset GPIO\n");
- }
- }
-
- /*
- * SPDIF port
- */
- 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, ip7500av_i2c_board_info, ARRAY_SIZE(ip7500av_i2c_board_info));
-
- printk(KERN_INFO "IP7500 Audio/Video Board\n");
- return 0;
-}
-arch_initcall(ip7500av_init);
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