linux/arch/arm/mach-davinci/board-dm355-evm.c
Philby John 00642f6616 Add SDA and SCL pin numbers to i2c platform data
Patch adds SDA and SCL pin numbers to the i2c platform data
structure for Davinci DM355 and DM6446. This at present is
used for i2c bus recovery.
TODO: Add SDA and SCL pin number information to include all
Davinci platforms such as dm355-leopard, dm365, dm646x, da8xx etc.

Signed-off-by: Philby John <pjohn@in.mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-02-04 13:30:06 -08:00

370 lines
8.9 KiB
C

/*
* TI DaVinci EVM board support
*
* Author: Kevin Hilman, Deep Root Systems, LLC
*
* 2007 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/videodev2.h>
#include <media/tvp514x.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/dm355.h>
#include <mach/i2c.h>
#include <mach/serial.h>
#include <mach/nand.h>
#include <mach/mmc.h>
#include <mach/usb.h>
#define DAVINCI_ASYNC_EMIF_CONTROL_BASE 0x01e10000
#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x02000000
/* NOTE: this is geared for the standard config, with a socketed
* 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors. If you
* swap chips, maybe with a different block size, partitioning may
* need to be changed.
*/
#define NAND_BLOCK_SIZE SZ_128K
static struct mtd_partition davinci_nand_partitions[] = {
{
/* UBL (a few copies) plus U-Boot */
.name = "bootloader",
.offset = 0,
.size = 15 * NAND_BLOCK_SIZE,
.mask_flags = MTD_WRITEABLE, /* force read-only */
}, {
/* U-Boot environment */
.name = "params",
.offset = MTDPART_OFS_APPEND,
.size = 1 * NAND_BLOCK_SIZE,
.mask_flags = 0,
}, {
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
.mask_flags = 0,
}, {
.name = "filesystem1",
.offset = MTDPART_OFS_APPEND,
.size = SZ_512M,
.mask_flags = 0,
}, {
.name = "filesystem2",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
}
/* two blocks with bad block table (and mirror) at the end */
};
static struct davinci_nand_pdata davinci_nand_data = {
.mask_chipsel = BIT(14),
.parts = davinci_nand_partitions,
.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
.ecc_mode = NAND_ECC_HW,
.options = NAND_USE_FLASH_BBT,
.ecc_bits = 4,
};
static struct resource davinci_nand_resources[] = {
{
.start = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
.end = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
.flags = IORESOURCE_MEM,
}, {
.start = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
.end = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device davinci_nand_device = {
.name = "davinci_nand",
.id = 0,
.num_resources = ARRAY_SIZE(davinci_nand_resources),
.resource = davinci_nand_resources,
.dev = {
.platform_data = &davinci_nand_data,
},
};
static struct davinci_i2c_platform_data i2c_pdata = {
.bus_freq = 400 /* kHz */,
.bus_delay = 0 /* usec */,
.sda_pin = 15,
.scl_pin = 14,
};
static struct snd_platform_data dm355_evm_snd_data;
static int dm355evm_mmc_gpios = -EINVAL;
static void dm355evm_mmcsd_gpios(unsigned gpio)
{
gpio_request(gpio + 0, "mmc0_ro");
gpio_request(gpio + 1, "mmc0_cd");
gpio_request(gpio + 2, "mmc1_ro");
gpio_request(gpio + 3, "mmc1_cd");
/* we "know" these are input-only so we don't
* need to call gpio_direction_input()
*/
dm355evm_mmc_gpios = gpio;
}
static struct i2c_board_info dm355evm_i2c_info[] = {
{ I2C_BOARD_INFO("dm355evm_msp", 0x25),
.platform_data = dm355evm_mmcsd_gpios,
},
/* { plus irq }, */
{ I2C_BOARD_INFO("tlv320aic33", 0x1b), },
};
static void __init evm_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
gpio_request(5, "dm355evm_msp");
gpio_direction_input(5);
dm355evm_i2c_info[0].irq = gpio_to_irq(5);
i2c_register_board_info(1, dm355evm_i2c_info,
ARRAY_SIZE(dm355evm_i2c_info));
}
static struct resource dm355evm_dm9000_rsrc[] = {
{
/* addr */
.start = 0x04014000,
.end = 0x04014001,
.flags = IORESOURCE_MEM,
}, {
/* data */
.start = 0x04014002,
.end = 0x04014003,
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
},
};
static struct platform_device dm355evm_dm9000 = {
.name = "dm9000",
.id = -1,
.resource = dm355evm_dm9000_rsrc,
.num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
};
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)
/* Inputs available at the TVP5146 */
static struct v4l2_input tvp5146_inputs[] = {
{
.index = 0,
.name = "Composite",
.type = V4L2_INPUT_TYPE_CAMERA,
.std = TVP514X_STD_ALL,
},
{
.index = 1,
.name = "S-Video",
.type = V4L2_INPUT_TYPE_CAMERA,
.std = TVP514X_STD_ALL,
},
};
/*
* this is the route info for connecting each input to decoder
* ouput that goes to vpfe. There is a one to one correspondence
* with tvp5146_inputs
*/
static struct vpfe_route tvp5146_routes[] = {
{
.input = INPUT_CVBS_VI2B,
.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
},
{
.input = INPUT_SVIDEO_VI2C_VI1C,
.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
},
};
static struct vpfe_subdev_info vpfe_sub_devs[] = {
{
.name = "tvp5146",
.grp_id = 0,
.num_inputs = ARRAY_SIZE(tvp5146_inputs),
.inputs = tvp5146_inputs,
.routes = tvp5146_routes,
.can_route = 1,
.ccdc_if_params = {
.if_type = VPFE_BT656,
.hdpol = VPFE_PINPOL_POSITIVE,
.vdpol = VPFE_PINPOL_POSITIVE,
},
.board_info = {
I2C_BOARD_INFO("tvp5146", 0x5d),
.platform_data = &tvp5146_pdata,
},
}
};
static struct vpfe_config vpfe_cfg = {
.num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
.i2c_adapter_id = 1,
.sub_devs = vpfe_sub_devs,
.card_name = "DM355 EVM",
.ccdc = "DM355 CCDC",
};
static struct platform_device *davinci_evm_devices[] __initdata = {
&dm355evm_dm9000,
&davinci_nand_device,
};
static struct davinci_uart_config uart_config __initdata = {
.enabled_uarts = (1 << 0),
};
static void __init dm355_evm_map_io(void)
{
/* setup input configuration for VPFE input devices */
dm355_set_vpfe_config(&vpfe_cfg);
dm355_init();
}
static int dm355evm_mmc_get_cd(int module)
{
if (!gpio_is_valid(dm355evm_mmc_gpios))
return -ENXIO;
/* low == card present */
return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
}
static int dm355evm_mmc_get_ro(int module)
{
if (!gpio_is_valid(dm355evm_mmc_gpios))
return -ENXIO;
/* high == card's write protect switch active */
return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
}
static struct davinci_mmc_config dm355evm_mmc_config = {
.get_cd = dm355evm_mmc_get_cd,
.get_ro = dm355evm_mmc_get_ro,
.wires = 4,
.max_freq = 50000000,
.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.version = MMC_CTLR_VERSION_1,
};
/* Don't connect anything to J10 unless you're only using USB host
* mode *and* have to do so with some kind of gender-bender. If
* you have proper Mini-B or Mini-A cables (or Mini-A adapters)
* the ID pin won't need any help.
*/
#ifdef CONFIG_USB_MUSB_PERIPHERAL
#define USB_ID_VALUE 0 /* ID pulled high; *should* float */
#else
#define USB_ID_VALUE 1 /* ID pulled low */
#endif
static struct spi_eeprom at25640a = {
.byte_len = SZ_64K / 8,
.name = "at25640a",
.page_size = 32,
.flags = EE_ADDR2,
};
static struct spi_board_info dm355_evm_spi_info[] __initconst = {
{
.modalias = "at25",
.platform_data = &at25640a,
.max_speed_hz = 10 * 1000 * 1000, /* at 3v3 */
.bus_num = 0,
.chip_select = 0,
.mode = SPI_MODE_0,
},
};
static __init void dm355_evm_init(void)
{
struct clk *aemif;
gpio_request(1, "dm9000");
gpio_direction_input(1);
dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
if (IS_ERR(aemif))
WARN("%s: unable to get AEMIF clock\n", __func__);
else
clk_enable(aemif);
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
evm_init_i2c();
davinci_serial_init(&uart_config);
/* NOTE: NAND flash timings set by the UBL are slower than
* needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
* but could be 0x0400008c for about 25% faster page reads.
*/
gpio_request(2, "usb_id_toggle");
gpio_direction_output(2, USB_ID_VALUE);
/* irlml6401 switches over 1A in under 8 msec */
davinci_setup_usb(1000, 8);
davinci_setup_mmc(0, &dm355evm_mmc_config);
davinci_setup_mmc(1, &dm355evm_mmc_config);
dm355_init_spi0(BIT(0), dm355_evm_spi_info,
ARRAY_SIZE(dm355_evm_spi_info));
/* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
}
static __init void dm355_evm_irq_init(void)
{
davinci_irq_init();
}
MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (0x80000100),
.map_io = dm355_evm_map_io,
.init_irq = dm355_evm_irq_init,
.timer = &davinci_timer,
.init_machine = dm355_evm_init,
MACHINE_END