forked from Minki/linux
85609c1ccd
VPIF display changes (Chaithrika) Add platform device and resource structures. Also define a platform specific clock setup function that can be accessed by the driver to configure the clock and CPLD. VPIF caputure changes (Murali) 1) Modify vpif_subdev_info to add board_info, routing information and vpif interface configuration. Remove addr since it is part of board_info 2) Add code to setup channel mode and input decoder path for vpif capture driver Also incorporated comments against version v0 of the patch series and added a spinlock to protect writes to common registers Tested on DM6467 on channel 0 using TVP514x. Following bootargs used for drivers: vpif_capture.ch0_bufsize=829440 vpif_display.ch2_bufsize=829440 Signed-off-by: Manjunath Hadli <mrh@ti.com> Signed-off-by: Brijesh Jadav <brijesh.j@ti.com> Signed-off-by: Chaithrika U S <chaithrika@ti.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
672 lines
15 KiB
C
672 lines
15 KiB
C
/*
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* TI DaVinci DM646X EVM board
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*
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* Derived from: arch/arm/mach-davinci/board-evm.c
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* Copyright (C) 2006 Texas Instruments.
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*
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* (C) 2007-2008, MontaVista Software, Inc.
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*
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*/
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/**************************************************************************
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* Included Files
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**************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/fs.h>
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#include <linux/major.h>
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#include <linux/root_dev.h>
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#include <linux/dma-mapping.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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#include <linux/leds.h>
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#include <linux/gpio.h>
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#include <linux/io.h>
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/i2c/at24.h>
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#include <linux/i2c/pcf857x.h>
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#include <linux/etherdevice.h>
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#include <media/tvp514x.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include <mach/dm646x.h>
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#include <mach/common.h>
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#include <mach/psc.h>
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#include <mach/serial.h>
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#include <mach/i2c.h>
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#include <mach/mmc.h>
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#include <mach/emac.h>
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#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
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defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
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#define HAS_ATA 1
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#else
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#define HAS_ATA 0
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#endif
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/* CPLD Register 0 bits to control ATA */
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#define DM646X_EVM_ATA_RST BIT(0)
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#define DM646X_EVM_ATA_PWD BIT(1)
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#define DM646X_EVM_PHY_MASK (0x2)
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#define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
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#define VIDCLKCTL_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x38)
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#define VSCLKDIS_OFFSET (DAVINCI_SYSTEM_MODULE_BASE + 0x6c)
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#define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
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#define VCH2CLK_SYSCLK8 (BIT(9))
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#define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
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#define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
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#define VCH3CLK_SYSCLK8 (BIT(13))
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#define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
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#define VIDCH2CLK (BIT(10))
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#define VIDCH3CLK (BIT(11))
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#define VIDCH1CLK (BIT(4))
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#define TVP7002_INPUT (BIT(4))
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#define TVP5147_INPUT (~BIT(4))
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#define VPIF_INPUT_ONE_CHANNEL (BIT(5))
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#define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
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#define TVP5147_CH0 "tvp514x-0"
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#define TVP5147_CH1 "tvp514x-1"
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static void __iomem *vpif_vidclkctl_reg;
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static void __iomem *vpif_vsclkdis_reg;
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/* spin lock for updating above registers */
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static spinlock_t vpif_reg_lock;
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static struct davinci_uart_config uart_config __initdata = {
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.enabled_uarts = (1 << 0),
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};
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/* CPLD Register 0 Client: used for I/O Control */
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static int cpld_reg0_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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if (HAS_ATA) {
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u8 data;
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struct i2c_msg msg[2] = {
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{
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.addr = client->addr,
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.flags = I2C_M_RD,
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.len = 1,
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.buf = &data,
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},
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{
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.addr = client->addr,
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.flags = 0,
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.len = 1,
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.buf = &data,
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},
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};
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/* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
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i2c_transfer(client->adapter, msg, 1);
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data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
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i2c_transfer(client->adapter, msg + 1, 1);
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}
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return 0;
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}
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static const struct i2c_device_id cpld_reg_ids[] = {
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{ "cpld_reg0", 0, },
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{ },
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};
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static struct i2c_driver dm6467evm_cpld_driver = {
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.driver.name = "cpld_reg0",
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.id_table = cpld_reg_ids,
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.probe = cpld_reg0_probe,
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};
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/* LEDS */
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static struct gpio_led evm_leds[] = {
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{ .name = "DS1", .active_low = 1, },
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{ .name = "DS2", .active_low = 1, },
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{ .name = "DS3", .active_low = 1, },
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{ .name = "DS4", .active_low = 1, },
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};
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static __initconst struct gpio_led_platform_data evm_led_data = {
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.num_leds = ARRAY_SIZE(evm_leds),
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.leds = evm_leds,
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};
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static struct platform_device *evm_led_dev;
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static int evm_led_setup(struct i2c_client *client, int gpio,
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unsigned int ngpio, void *c)
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{
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struct gpio_led *leds = evm_leds;
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int status;
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while (ngpio--) {
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leds->gpio = gpio++;
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leds++;
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};
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evm_led_dev = platform_device_alloc("leds-gpio", 0);
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platform_device_add_data(evm_led_dev, &evm_led_data,
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sizeof(evm_led_data));
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evm_led_dev->dev.parent = &client->dev;
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status = platform_device_add(evm_led_dev);
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if (status < 0) {
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platform_device_put(evm_led_dev);
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evm_led_dev = NULL;
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}
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return status;
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}
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static int evm_led_teardown(struct i2c_client *client, int gpio,
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unsigned ngpio, void *c)
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{
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if (evm_led_dev) {
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platform_device_unregister(evm_led_dev);
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evm_led_dev = NULL;
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}
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return 0;
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}
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static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };
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static int evm_sw_setup(struct i2c_client *client, int gpio,
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unsigned ngpio, void *c)
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{
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int status;
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int i;
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char label[10];
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for (i = 0; i < 4; ++i) {
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snprintf(label, 10, "user_sw%d", i);
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status = gpio_request(gpio, label);
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if (status)
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goto out_free;
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evm_sw_gpio[i] = gpio++;
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status = gpio_direction_input(evm_sw_gpio[i]);
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if (status) {
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gpio_free(evm_sw_gpio[i]);
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evm_sw_gpio[i] = -EINVAL;
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goto out_free;
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}
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status = gpio_export(evm_sw_gpio[i], 0);
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if (status) {
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gpio_free(evm_sw_gpio[i]);
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evm_sw_gpio[i] = -EINVAL;
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goto out_free;
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}
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}
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return status;
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out_free:
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for (i = 0; i < 4; ++i) {
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if (evm_sw_gpio[i] != -EINVAL) {
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gpio_free(evm_sw_gpio[i]);
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evm_sw_gpio[i] = -EINVAL;
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}
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}
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return status;
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}
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static int evm_sw_teardown(struct i2c_client *client, int gpio,
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unsigned ngpio, void *c)
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{
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int i;
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for (i = 0; i < 4; ++i) {
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if (evm_sw_gpio[i] != -EINVAL) {
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gpio_unexport(evm_sw_gpio[i]);
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gpio_free(evm_sw_gpio[i]);
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evm_sw_gpio[i] = -EINVAL;
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}
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}
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return 0;
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}
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static int evm_pcf_setup(struct i2c_client *client, int gpio,
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unsigned int ngpio, void *c)
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{
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int status;
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if (ngpio < 8)
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return -EINVAL;
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status = evm_sw_setup(client, gpio, 4, c);
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if (status)
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return status;
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return evm_led_setup(client, gpio+4, 4, c);
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}
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static int evm_pcf_teardown(struct i2c_client *client, int gpio,
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unsigned int ngpio, void *c)
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{
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BUG_ON(ngpio < 8);
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evm_sw_teardown(client, gpio, 4, c);
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evm_led_teardown(client, gpio+4, 4, c);
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return 0;
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}
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static struct pcf857x_platform_data pcf_data = {
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.gpio_base = DAVINCI_N_GPIO+1,
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.setup = evm_pcf_setup,
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.teardown = evm_pcf_teardown,
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};
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/* Most of this EEPROM is unused, but U-Boot uses some data:
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* - 0x7f00, 6 bytes Ethernet Address
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* - ... newer boards may have more
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*/
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static struct at24_platform_data eeprom_info = {
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.byte_len = (256*1024) / 8,
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.page_size = 64,
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.flags = AT24_FLAG_ADDR16,
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.setup = davinci_get_mac_addr,
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.context = (void *)0x7f00,
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};
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static u8 dm646x_iis_serializer_direction[] = {
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TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
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};
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static u8 dm646x_dit_serializer_direction[] = {
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TX_MODE,
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};
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static struct snd_platform_data dm646x_evm_snd_data[] = {
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{
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.tx_dma_offset = 0x400,
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.rx_dma_offset = 0x400,
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.op_mode = DAVINCI_MCASP_IIS_MODE,
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.num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
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.tdm_slots = 2,
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.serial_dir = dm646x_iis_serializer_direction,
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.eventq_no = EVENTQ_0,
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},
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{
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.tx_dma_offset = 0x400,
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.rx_dma_offset = 0,
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.op_mode = DAVINCI_MCASP_DIT_MODE,
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.num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
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.tdm_slots = 32,
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.serial_dir = dm646x_dit_serializer_direction,
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.eventq_no = EVENTQ_0,
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},
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};
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static struct i2c_client *cpld_client;
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static int cpld_video_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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cpld_client = client;
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return 0;
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}
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static int __devexit cpld_video_remove(struct i2c_client *client)
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{
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cpld_client = NULL;
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return 0;
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}
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static const struct i2c_device_id cpld_video_id[] = {
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{ "cpld_video", 0 },
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{ }
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};
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static struct i2c_driver cpld_video_driver = {
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.driver = {
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.name = "cpld_video",
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},
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.probe = cpld_video_probe,
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.remove = cpld_video_remove,
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.id_table = cpld_video_id,
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};
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static void evm_init_cpld(void)
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{
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i2c_add_driver(&cpld_video_driver);
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}
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static struct i2c_board_info __initdata i2c_info[] = {
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{
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I2C_BOARD_INFO("24c256", 0x50),
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.platform_data = &eeprom_info,
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},
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{
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I2C_BOARD_INFO("pcf8574a", 0x38),
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.platform_data = &pcf_data,
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},
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{
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I2C_BOARD_INFO("cpld_reg0", 0x3a),
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},
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{
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I2C_BOARD_INFO("tlv320aic33", 0x18),
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},
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{
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I2C_BOARD_INFO("cpld_video", 0x3b),
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},
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};
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static struct davinci_i2c_platform_data i2c_pdata = {
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.bus_freq = 100 /* kHz */,
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.bus_delay = 0 /* usec */,
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};
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static int set_vpif_clock(int mux_mode, int hd)
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{
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unsigned long flags;
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unsigned int value;
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int val = 0;
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int err = 0;
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if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client)
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return -ENXIO;
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/* disable the clock */
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spin_lock_irqsave(&vpif_reg_lock, flags);
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value = __raw_readl(vpif_vsclkdis_reg);
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value |= (VIDCH3CLK | VIDCH2CLK);
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__raw_writel(value, vpif_vsclkdis_reg);
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spin_unlock_irqrestore(&vpif_reg_lock, flags);
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val = i2c_smbus_read_byte(cpld_client);
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if (val < 0)
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return val;
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if (mux_mode == 1)
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val &= ~0x40;
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else
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val |= 0x40;
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err = i2c_smbus_write_byte(cpld_client, val);
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if (err)
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return err;
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value = __raw_readl(vpif_vidclkctl_reg);
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value &= ~(VCH2CLK_MASK);
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value &= ~(VCH3CLK_MASK);
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if (hd >= 1)
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value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
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else
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value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);
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__raw_writel(value, vpif_vidclkctl_reg);
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spin_lock_irqsave(&vpif_reg_lock, flags);
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value = __raw_readl(vpif_vsclkdis_reg);
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/* enable the clock */
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value &= ~(VIDCH3CLK | VIDCH2CLK);
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__raw_writel(value, vpif_vsclkdis_reg);
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spin_unlock_irqrestore(&vpif_reg_lock, flags);
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return 0;
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}
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static struct vpif_subdev_info dm646x_vpif_subdev[] = {
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{
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.name = "adv7343",
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.board_info = {
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I2C_BOARD_INFO("adv7343", 0x2a),
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},
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},
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{
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.name = "ths7303",
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.board_info = {
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I2C_BOARD_INFO("ths7303", 0x2c),
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},
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},
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};
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static const char *output[] = {
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"Composite",
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"Component",
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"S-Video",
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};
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static struct vpif_display_config dm646x_vpif_display_config = {
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.set_clock = set_vpif_clock,
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.subdevinfo = dm646x_vpif_subdev,
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.subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
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.output = output,
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.output_count = ARRAY_SIZE(output),
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.card_name = "DM646x EVM",
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};
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/**
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* setup_vpif_input_path()
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* @channel: channel id (0 - CH0, 1 - CH1)
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* @sub_dev_name: ptr sub device name
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*
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* This will set vpif input to capture data from tvp514x or
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* tvp7002.
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*/
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static int setup_vpif_input_path(int channel, const char *sub_dev_name)
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{
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int err = 0;
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int val;
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/* for channel 1, we don't do anything */
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if (channel != 0)
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return 0;
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if (!cpld_client)
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return -ENXIO;
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val = i2c_smbus_read_byte(cpld_client);
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if (val < 0)
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return val;
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if (!strcmp(sub_dev_name, TVP5147_CH0) ||
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!strcmp(sub_dev_name, TVP5147_CH1))
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val &= TVP5147_INPUT;
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else
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val |= TVP7002_INPUT;
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err = i2c_smbus_write_byte(cpld_client, val);
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if (err)
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return err;
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return 0;
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}
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/**
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* setup_vpif_input_channel_mode()
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* @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
|
|
*
|
|
* This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
|
|
*/
|
|
static int setup_vpif_input_channel_mode(int mux_mode)
|
|
{
|
|
unsigned long flags;
|
|
int err = 0;
|
|
int val;
|
|
u32 value;
|
|
|
|
if (!vpif_vsclkdis_reg || !cpld_client)
|
|
return -ENXIO;
|
|
|
|
val = i2c_smbus_read_byte(cpld_client);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
spin_lock_irqsave(&vpif_reg_lock, flags);
|
|
value = __raw_readl(vpif_vsclkdis_reg);
|
|
if (mux_mode) {
|
|
val &= VPIF_INPUT_TWO_CHANNEL;
|
|
value |= VIDCH1CLK;
|
|
} else {
|
|
val |= VPIF_INPUT_ONE_CHANNEL;
|
|
value &= ~VIDCH1CLK;
|
|
}
|
|
__raw_writel(value, vpif_vsclkdis_reg);
|
|
spin_unlock_irqrestore(&vpif_reg_lock, flags);
|
|
|
|
err = i2c_smbus_write_byte(cpld_client, val);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct tvp514x_platform_data tvp5146_pdata = {
|
|
.clk_polarity = 0,
|
|
.hs_polarity = 1,
|
|
.vs_polarity = 1
|
|
};
|
|
|
|
#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
|
|
|
|
static struct vpif_subdev_info vpif_capture_sdev_info[] = {
|
|
{
|
|
.name = TVP5147_CH0,
|
|
.board_info = {
|
|
I2C_BOARD_INFO("tvp5146", 0x5d),
|
|
.platform_data = &tvp5146_pdata,
|
|
},
|
|
.input = INPUT_CVBS_VI2B,
|
|
.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
|
|
.can_route = 1,
|
|
.vpif_if = {
|
|
.if_type = VPIF_IF_BT656,
|
|
.hd_pol = 1,
|
|
.vd_pol = 1,
|
|
.fid_pol = 0,
|
|
},
|
|
},
|
|
{
|
|
.name = TVP5147_CH1,
|
|
.board_info = {
|
|
I2C_BOARD_INFO("tvp5146", 0x5c),
|
|
.platform_data = &tvp5146_pdata,
|
|
},
|
|
.input = INPUT_SVIDEO_VI2C_VI1C,
|
|
.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
|
|
.can_route = 1,
|
|
.vpif_if = {
|
|
.if_type = VPIF_IF_BT656,
|
|
.hd_pol = 1,
|
|
.vd_pol = 1,
|
|
.fid_pol = 0,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct vpif_input dm6467_ch0_inputs[] = {
|
|
{
|
|
.input = {
|
|
.index = 0,
|
|
.name = "Composite",
|
|
.type = V4L2_INPUT_TYPE_CAMERA,
|
|
.std = TVP514X_STD_ALL,
|
|
},
|
|
.subdev_name = TVP5147_CH0,
|
|
},
|
|
};
|
|
|
|
static const struct vpif_input dm6467_ch1_inputs[] = {
|
|
{
|
|
.input = {
|
|
.index = 0,
|
|
.name = "S-Video",
|
|
.type = V4L2_INPUT_TYPE_CAMERA,
|
|
.std = TVP514X_STD_ALL,
|
|
},
|
|
.subdev_name = TVP5147_CH1,
|
|
},
|
|
};
|
|
|
|
static struct vpif_capture_config dm646x_vpif_capture_cfg = {
|
|
.setup_input_path = setup_vpif_input_path,
|
|
.setup_input_channel_mode = setup_vpif_input_channel_mode,
|
|
.subdev_info = vpif_capture_sdev_info,
|
|
.subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
|
|
.chan_config[0] = {
|
|
.inputs = dm6467_ch0_inputs,
|
|
.input_count = ARRAY_SIZE(dm6467_ch0_inputs),
|
|
},
|
|
.chan_config[1] = {
|
|
.inputs = dm6467_ch1_inputs,
|
|
.input_count = ARRAY_SIZE(dm6467_ch1_inputs),
|
|
},
|
|
};
|
|
|
|
static void __init evm_init_video(void)
|
|
{
|
|
vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4);
|
|
vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4);
|
|
if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) {
|
|
pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");
|
|
return;
|
|
}
|
|
spin_lock_init(&vpif_reg_lock);
|
|
|
|
dm646x_setup_vpif(&dm646x_vpif_display_config,
|
|
&dm646x_vpif_capture_cfg);
|
|
}
|
|
|
|
static void __init evm_init_i2c(void)
|
|
{
|
|
davinci_init_i2c(&i2c_pdata);
|
|
i2c_add_driver(&dm6467evm_cpld_driver);
|
|
i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
|
|
evm_init_cpld();
|
|
evm_init_video();
|
|
}
|
|
|
|
static void __init davinci_map_io(void)
|
|
{
|
|
dm646x_init();
|
|
}
|
|
|
|
static __init void evm_init(void)
|
|
{
|
|
struct davinci_soc_info *soc_info = &davinci_soc_info;
|
|
|
|
evm_init_i2c();
|
|
davinci_serial_init(&uart_config);
|
|
dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
|
|
dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);
|
|
|
|
if (HAS_ATA)
|
|
dm646x_init_ide();
|
|
|
|
soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK;
|
|
soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY;
|
|
}
|
|
|
|
static __init void davinci_dm646x_evm_irq_init(void)
|
|
{
|
|
davinci_irq_init();
|
|
}
|
|
|
|
MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
|
|
.phys_io = IO_PHYS,
|
|
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
|
|
.boot_params = (0x80000100),
|
|
.map_io = davinci_map_io,
|
|
.init_irq = davinci_dm646x_evm_irq_init,
|
|
.timer = &davinci_timer,
|
|
.init_machine = evm_init,
|
|
MACHINE_END
|
|
|