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447 lines
11 KiB
447 lines
11 KiB
/* |
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* TI DaVinci EVM board support |
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* |
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* Author: Kevin Hilman, Deep Root Systems, LLC |
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* |
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* 2007 (c) MontaVista Software, Inc. This file is licensed under |
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* the terms of the GNU General Public License version 2. This program |
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* is licensed "as is" without any warranty of any kind, whether express |
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* or implied. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/err.h> |
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#include <linux/platform_device.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/partitions.h> |
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#include <linux/mtd/rawnand.h> |
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#include <linux/i2c.h> |
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#include <linux/gpio.h> |
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#include <linux/gpio/machine.h> |
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#include <linux/clk.h> |
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#include <linux/dm9000.h> |
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#include <linux/videodev2.h> |
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#include <media/i2c/tvp514x.h> |
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#include <linux/spi/spi.h> |
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#include <linux/spi/eeprom.h> |
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#include <linux/platform_data/gpio-davinci.h> |
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#include <linux/platform_data/i2c-davinci.h> |
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#include <linux/platform_data/mtd-davinci.h> |
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#include <linux/platform_data/mmc-davinci.h> |
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#include <linux/platform_data/usb-davinci.h> |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include <mach/serial.h> |
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#include <mach/common.h> |
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#include "davinci.h" |
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/* NOTE: this is geared for the standard config, with a socketed |
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* 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you |
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* swap chips, maybe with a different block size, partitioning may |
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* need to be changed. |
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*/ |
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#define NAND_BLOCK_SIZE SZ_128K |
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static struct mtd_partition davinci_nand_partitions[] = { |
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{ |
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/* UBL (a few copies) plus U-Boot */ |
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.name = "bootloader", |
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.offset = 0, |
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.size = 15 * NAND_BLOCK_SIZE, |
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.mask_flags = MTD_WRITEABLE, /* force read-only */ |
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}, { |
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/* U-Boot environment */ |
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.name = "params", |
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.offset = MTDPART_OFS_APPEND, |
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.size = 1 * NAND_BLOCK_SIZE, |
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.mask_flags = 0, |
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}, { |
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.name = "kernel", |
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.offset = MTDPART_OFS_APPEND, |
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.size = SZ_4M, |
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.mask_flags = 0, |
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}, { |
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.name = "filesystem1", |
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.offset = MTDPART_OFS_APPEND, |
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.size = SZ_512M, |
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.mask_flags = 0, |
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}, { |
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.name = "filesystem2", |
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.offset = MTDPART_OFS_APPEND, |
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.size = MTDPART_SIZ_FULL, |
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.mask_flags = 0, |
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} |
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/* two blocks with bad block table (and mirror) at the end */ |
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}; |
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static struct davinci_nand_pdata davinci_nand_data = { |
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.core_chipsel = 0, |
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.mask_chipsel = BIT(14), |
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.parts = davinci_nand_partitions, |
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.nr_parts = ARRAY_SIZE(davinci_nand_partitions), |
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.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST, |
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.bbt_options = NAND_BBT_USE_FLASH, |
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.ecc_bits = 4, |
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}; |
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static struct resource davinci_nand_resources[] = { |
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{ |
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.start = DM355_ASYNC_EMIF_DATA_CE0_BASE, |
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.end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1, |
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.flags = IORESOURCE_MEM, |
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}, { |
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.start = DM355_ASYNC_EMIF_CONTROL_BASE, |
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.end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct platform_device davinci_nand_device = { |
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.name = "davinci_nand", |
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.id = 0, |
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.num_resources = ARRAY_SIZE(davinci_nand_resources), |
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.resource = davinci_nand_resources, |
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.dev = { |
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.platform_data = &davinci_nand_data, |
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}, |
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}; |
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#define DM355_I2C_SDA_PIN GPIO_TO_PIN(0, 15) |
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#define DM355_I2C_SCL_PIN GPIO_TO_PIN(0, 14) |
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static struct gpiod_lookup_table i2c_recovery_gpiod_table = { |
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.dev_id = "i2c_davinci.1", |
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.table = { |
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GPIO_LOOKUP("davinci_gpio", DM355_I2C_SDA_PIN, "sda", |
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GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), |
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GPIO_LOOKUP("davinci_gpio", DM355_I2C_SCL_PIN, "scl", |
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GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), |
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{ } |
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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 = 400 /* kHz */, |
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.bus_delay = 0 /* usec */, |
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.gpio_recovery = true, |
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}; |
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static int dm355evm_mmc_gpios = -EINVAL; |
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static void dm355evm_mmcsd_gpios(unsigned gpio) |
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{ |
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gpio_request(gpio + 0, "mmc0_ro"); |
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gpio_request(gpio + 1, "mmc0_cd"); |
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gpio_request(gpio + 2, "mmc1_ro"); |
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gpio_request(gpio + 3, "mmc1_cd"); |
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/* we "know" these are input-only so we don't |
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* need to call gpio_direction_input() |
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*/ |
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dm355evm_mmc_gpios = gpio; |
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} |
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static struct i2c_board_info dm355evm_i2c_info[] = { |
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{ I2C_BOARD_INFO("dm355evm_msp", 0x25), |
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.platform_data = dm355evm_mmcsd_gpios, |
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}, |
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/* { plus irq }, */ |
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{ I2C_BOARD_INFO("tlv320aic33", 0x1b), }, |
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}; |
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static void __init evm_init_i2c(void) |
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{ |
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gpiod_add_lookup_table(&i2c_recovery_gpiod_table); |
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davinci_init_i2c(&i2c_pdata); |
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gpio_request(5, "dm355evm_msp"); |
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gpio_direction_input(5); |
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dm355evm_i2c_info[0].irq = gpio_to_irq(5); |
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i2c_register_board_info(1, dm355evm_i2c_info, |
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ARRAY_SIZE(dm355evm_i2c_info)); |
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} |
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static struct resource dm355evm_dm9000_rsrc[] = { |
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{ |
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/* addr */ |
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.start = 0x04014000, |
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.end = 0x04014001, |
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.flags = IORESOURCE_MEM, |
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}, { |
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/* data */ |
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.start = 0x04014002, |
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.end = 0x04014003, |
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.flags = IORESOURCE_MEM, |
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}, { |
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.flags = IORESOURCE_IRQ |
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| IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */, |
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}, |
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}; |
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static struct dm9000_plat_data dm335evm_dm9000_platdata; |
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static struct platform_device dm355evm_dm9000 = { |
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.name = "dm9000", |
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.id = -1, |
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.resource = dm355evm_dm9000_rsrc, |
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.num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc), |
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.dev = { |
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.platform_data = &dm335evm_dm9000_platdata, |
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}, |
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}; |
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static struct tvp514x_platform_data tvp5146_pdata = { |
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.clk_polarity = 0, |
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.hs_polarity = 1, |
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.vs_polarity = 1 |
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}; |
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#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL) |
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/* Inputs available at the TVP5146 */ |
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static struct v4l2_input tvp5146_inputs[] = { |
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{ |
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.index = 0, |
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.name = "Composite", |
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.type = V4L2_INPUT_TYPE_CAMERA, |
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.std = TVP514X_STD_ALL, |
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}, |
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{ |
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.index = 1, |
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.name = "S-Video", |
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.type = V4L2_INPUT_TYPE_CAMERA, |
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.std = TVP514X_STD_ALL, |
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}, |
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}; |
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/* |
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* this is the route info for connecting each input to decoder |
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* ouput that goes to vpfe. There is a one to one correspondence |
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* with tvp5146_inputs |
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*/ |
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static struct vpfe_route tvp5146_routes[] = { |
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{ |
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.input = INPUT_CVBS_VI2B, |
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.output = OUTPUT_10BIT_422_EMBEDDED_SYNC, |
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}, |
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{ |
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.input = INPUT_SVIDEO_VI2C_VI1C, |
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.output = OUTPUT_10BIT_422_EMBEDDED_SYNC, |
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}, |
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}; |
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static struct vpfe_subdev_info vpfe_sub_devs[] = { |
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{ |
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.name = "tvp5146", |
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.grp_id = 0, |
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.num_inputs = ARRAY_SIZE(tvp5146_inputs), |
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.inputs = tvp5146_inputs, |
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.routes = tvp5146_routes, |
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.can_route = 1, |
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.ccdc_if_params = { |
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.if_type = VPFE_BT656, |
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.hdpol = VPFE_PINPOL_POSITIVE, |
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.vdpol = VPFE_PINPOL_POSITIVE, |
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}, |
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.board_info = { |
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I2C_BOARD_INFO("tvp5146", 0x5d), |
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.platform_data = &tvp5146_pdata, |
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}, |
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} |
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}; |
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static struct vpfe_config vpfe_cfg = { |
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.num_subdevs = ARRAY_SIZE(vpfe_sub_devs), |
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.i2c_adapter_id = 1, |
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.sub_devs = vpfe_sub_devs, |
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.card_name = "DM355 EVM", |
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.ccdc = "DM355 CCDC", |
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}; |
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/* venc standards timings */ |
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static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = { |
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{ |
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.name = "ntsc", |
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.timings_type = VPBE_ENC_STD, |
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.std_id = V4L2_STD_NTSC, |
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.interlaced = 1, |
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.xres = 720, |
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.yres = 480, |
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.aspect = {11, 10}, |
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.fps = {30000, 1001}, |
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.left_margin = 0x79, |
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.upper_margin = 0x10, |
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}, |
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{ |
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.name = "pal", |
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.timings_type = VPBE_ENC_STD, |
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.std_id = V4L2_STD_PAL, |
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.interlaced = 1, |
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.xres = 720, |
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.yres = 576, |
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.aspect = {54, 59}, |
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.fps = {25, 1}, |
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.left_margin = 0x7E, |
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.upper_margin = 0x16 |
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}, |
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}; |
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#define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL) |
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/* |
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* The outputs available from VPBE + ecnoders. Keep the |
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* the order same as that of encoders. First those from venc followed by that |
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* from encoders. Index in the output refers to index on a particular encoder. |
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* Driver uses this index to pass it to encoder when it supports more than |
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* one output. Application uses index of the array to set an output. |
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*/ |
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static struct vpbe_output dm355evm_vpbe_outputs[] = { |
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{ |
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.output = { |
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.index = 0, |
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.name = "Composite", |
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.type = V4L2_OUTPUT_TYPE_ANALOG, |
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.std = VENC_STD_ALL, |
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.capabilities = V4L2_OUT_CAP_STD, |
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}, |
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.subdev_name = DM355_VPBE_VENC_SUBDEV_NAME, |
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.default_mode = "ntsc", |
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.num_modes = ARRAY_SIZE(dm355evm_enc_preset_timing), |
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.modes = dm355evm_enc_preset_timing, |
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.if_params = MEDIA_BUS_FMT_FIXED, |
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}, |
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}; |
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static struct vpbe_config dm355evm_display_cfg = { |
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.module_name = "dm355-vpbe-display", |
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.i2c_adapter_id = 1, |
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.osd = { |
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.module_name = DM355_VPBE_OSD_SUBDEV_NAME, |
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}, |
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.venc = { |
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.module_name = DM355_VPBE_VENC_SUBDEV_NAME, |
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}, |
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.num_outputs = ARRAY_SIZE(dm355evm_vpbe_outputs), |
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.outputs = dm355evm_vpbe_outputs, |
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}; |
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static struct platform_device *davinci_evm_devices[] __initdata = { |
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&dm355evm_dm9000, |
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&davinci_nand_device, |
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}; |
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static void __init dm355_evm_map_io(void) |
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{ |
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dm355_init(); |
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} |
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static int dm355evm_mmc_get_cd(int module) |
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{ |
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if (!gpio_is_valid(dm355evm_mmc_gpios)) |
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return -ENXIO; |
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/* low == card present */ |
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return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1); |
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} |
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static int dm355evm_mmc_get_ro(int module) |
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{ |
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if (!gpio_is_valid(dm355evm_mmc_gpios)) |
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return -ENXIO; |
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/* high == card's write protect switch active */ |
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return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0); |
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} |
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static struct davinci_mmc_config dm355evm_mmc_config = { |
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.get_cd = dm355evm_mmc_get_cd, |
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.get_ro = dm355evm_mmc_get_ro, |
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.wires = 4, |
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.max_freq = 50000000, |
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.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED, |
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}; |
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/* Don't connect anything to J10 unless you're only using USB host |
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* mode *and* have to do so with some kind of gender-bender. If |
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* you have proper Mini-B or Mini-A cables (or Mini-A adapters) |
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* the ID pin won't need any help. |
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*/ |
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#define USB_ID_VALUE 1 /* ID pulled low */ |
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static struct spi_eeprom at25640a = { |
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.byte_len = SZ_64K / 8, |
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.name = "at25640a", |
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.page_size = 32, |
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.flags = EE_ADDR2, |
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}; |
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static const struct spi_board_info dm355_evm_spi_info[] __initconst = { |
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{ |
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.modalias = "at25", |
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.platform_data = &at25640a, |
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.max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */ |
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.bus_num = 0, |
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.chip_select = 0, |
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.mode = SPI_MODE_0, |
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}, |
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}; |
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static __init void dm355_evm_init(void) |
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{ |
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struct clk *aemif; |
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int ret; |
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dm355_register_clocks(); |
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ret = dm355_gpio_register(); |
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if (ret) |
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pr_warn("%s: GPIO init failed: %d\n", __func__, ret); |
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gpio_request(1, "dm9000"); |
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gpio_direction_input(1); |
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dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1); |
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aemif = clk_get(&dm355evm_dm9000.dev, "aemif"); |
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if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n")) |
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clk_prepare_enable(aemif); |
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platform_add_devices(davinci_evm_devices, |
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ARRAY_SIZE(davinci_evm_devices)); |
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evm_init_i2c(); |
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davinci_serial_init(dm355_serial_device); |
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/* NOTE: NAND flash timings set by the UBL are slower than |
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* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204 |
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* but could be 0x0400008c for about 25% faster page reads. |
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*/ |
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gpio_request(2, "usb_id_toggle"); |
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gpio_direction_output(2, USB_ID_VALUE); |
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/* irlml6401 switches over 1A in under 8 msec */ |
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davinci_setup_usb(1000, 8); |
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davinci_setup_mmc(0, &dm355evm_mmc_config); |
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davinci_setup_mmc(1, &dm355evm_mmc_config); |
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dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg); |
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dm355_init_spi0(BIT(0), dm355_evm_spi_info, |
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ARRAY_SIZE(dm355_evm_spi_info)); |
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/* DM335 EVM uses ASP1; line-out is a stereo mini-jack */ |
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dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN); |
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} |
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MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM") |
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.atag_offset = 0x100, |
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.map_io = dm355_evm_map_io, |
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.init_irq = dm355_init_irq, |
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.init_time = dm355_init_time, |
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.init_machine = dm355_evm_init, |
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.init_late = davinci_init_late, |
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.dma_zone_size = SZ_128M, |
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MACHINE_END
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