- 根目录:
- arch
- arm
- mach-imx
- mach-imx27_visstrim_m10.c
/*
* mach-imx27_visstrim_m10.c
*
* Copyright 2010 Javier Martin <javier.martin@vista-silicon.com>
*
* Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/leds.h>
#include <linux/platform_data/asoc-mx27vis.h>
#include <media/soc_camera.h>
#include <sound/tlv320aic32x4.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/system_info.h>
#include <asm/memblock.h>
#include "common.h"
#include "devices-imx27.h"
#include "hardware.h"
#include "iomux-mx27.h"
#define TVP5150_RSTN (GPIO_PORTC + 18)
#define TVP5150_PWDN (GPIO_PORTC + 19)
#define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
#define SDHC1_IRQ_GPIO IMX_GPIO_NR(2, 25)
#define VERSION_MASK 0x7
#define MOTHERBOARD_SHIFT 4
#define EXPBOARD_SHIFT 0
#define MOTHERBOARD_BIT2 (GPIO_PORTD + 31)
#define MOTHERBOARD_BIT1 (GPIO_PORTD + 30)
#define MOTHERBOARD_BIT0 (GPIO_PORTD + 29)
#define EXPBOARD_BIT2 (GPIO_PORTD + 25)
#define EXPBOARD_BIT1 (GPIO_PORTD + 27)
#define EXPBOARD_BIT0 (GPIO_PORTD + 28)
#define AMP_GAIN_0 (GPIO_PORTF + 9)
#define AMP_GAIN_1 (GPIO_PORTF + 8)
#define AMP_MUTE_SDL (GPIO_PORTE + 5)
#define AMP_MUTE_SDR (GPIO_PORTF + 7)
static const int visstrim_m10_pins[] __initconst = {
/* UART1 (console) */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
/* FEC */
PD0_AIN_FEC_TXD0,
PD1_AIN_FEC_TXD1,
PD2_AIN_FEC_TXD2,
PD3_AIN_FEC_TXD3,
PD4_AOUT_FEC_RX_ER,
PD5_AOUT_FEC_RXD1,
PD6_AOUT_FEC_RXD2,
PD7_AOUT_FEC_RXD3,
PD8_AF_FEC_MDIO,
PD9_AIN_FEC_MDC,
PD10_AOUT_FEC_CRS,
PD11_AOUT_FEC_TX_CLK,
PD12_AOUT_FEC_RXD0,
PD13_AOUT_FEC_RX_DV,
PD14_AOUT_FEC_RX_CLK,
PD15_AOUT_FEC_COL,
PD16_AIN_FEC_TX_ER,
PF23_AIN_FEC_TX_EN,
/* SSI1 */
PC20_PF_SSI1_FS,
PC21_PF_SSI1_RXD,
PC22_PF_SSI1_TXD,
PC23_PF_SSI1_CLK,
/* SDHC1 */
PE18_PF_SD1_D0,
PE19_PF_SD1_D1,
PE20_PF_SD1_D2,
PE21_PF_SD1_D3,
PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK,
/* Both I2Cs */
PD17_PF_I2C_DATA,
PD18_PF_I2C_CLK,
PC5_PF_I2C2_SDA,
PC6_PF_I2C2_SCL,
/* USB OTG */
OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
PC9_PF_USBOTG_DATA0,
PC11_PF_USBOTG_DATA1,
PC10_PF_USBOTG_DATA2,
PC13_PF_USBOTG_DATA3,
PC12_PF_USBOTG_DATA4,
PC7_PF_USBOTG_DATA5,
PC8_PF_USBOTG_DATA6,
PE25_PF_USBOTG_DATA7,
PE24_PF_USBOTG_CLK,
PE2_PF_USBOTG_DIR,
PE0_PF_USBOTG_NXT,
PE1_PF_USBOTG_STP,
PB23_PF_USB_PWR,
PB24_PF_USB_OC,
/* CSI */
TVP5150_RSTN | GPIO_GPIO | GPIO_OUT,
TVP5150_PWDN | GPIO_GPIO | GPIO_OUT,
PB10_PF_CSI_D0,
PB11_PF_CSI_D1,
PB12_PF_CSI_D2,
PB13_PF_CSI_D3,
PB14_PF_CSI_D4,
PB15_PF_CSI_MCLK,
PB16_PF_CSI_PIXCLK,
PB17_PF_CSI_D5,
PB18_PF_CSI_D6,
PB19_PF_CSI_D7,
PB20_PF_CSI_VSYNC,
PB21_PF_CSI_HSYNC,
/* mother board version */
MOTHERBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
MOTHERBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
MOTHERBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
/* expansion board version */
EXPBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
EXPBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
EXPBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
/* Audio AMP control */
AMP_GAIN_0 | GPIO_GPIO | GPIO_OUT,
AMP_GAIN_1 | GPIO_GPIO | GPIO_OUT,
AMP_MUTE_SDL | GPIO_GPIO | GPIO_OUT,
AMP_MUTE_SDR | GPIO_GPIO | GPIO_OUT,
};
static struct gpio visstrim_m10_version_gpios[] = {
{ EXPBOARD_BIT0, GPIOF_IN, "exp-version-0" },
{ EXPBOARD_BIT1, GPIOF_IN, "exp-version-1" },
{ EXPBOARD_BIT2, GPIOF_IN, "exp-version-2" },
{ MOTHERBOARD_BIT0, GPIOF_IN, "mother-version-0" },
{ MOTHERBOARD_BIT1, GPIOF_IN, "mother-version-1" },
{ MOTHERBOARD_BIT2, GPIOF_IN, "mother-version-2" },
};
static const struct gpio visstrim_m10_gpios[] __initconst = {
{
.gpio = TVP5150_RSTN,
.flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH,
.label = "tvp5150_rstn",
},
{
.gpio = TVP5150_PWDN,
.flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
.label = "tvp5150_pwdn",
},
{
.gpio = OTG_PHY_CS_GPIO,
.flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
.label = "usbotg_cs",
},
{
.gpio = AMP_GAIN_0,
.flags = GPIOF_DIR_OUT,
.label = "amp-gain-0",
},
{
.gpio = AMP_GAIN_1,
.flags = GPIOF_DIR_OUT,
.label = "amp-gain-1",
},
{
.gpio = AMP_MUTE_SDL,
.flags = GPIOF_DIR_OUT,
.label = "amp-mute-sdl",
},
{
.gpio = AMP_MUTE_SDR,
.flags = GPIOF_DIR_OUT,
.label = "amp-mute-sdr",
},
};
/* Camera */
static int visstrim_camera_power(struct device *dev, int on)
{
gpio_set_value(TVP5150_PWDN, on);
return 0;
};
static int visstrim_camera_reset(struct device *dev)
{
gpio_set_value(TVP5150_RSTN, 0);
ndelay(500);
gpio_set_value(TVP5150_RSTN, 1);
return 0;
};
static struct i2c_board_info visstrim_i2c_camera = {
I2C_BOARD_INFO("tvp5150", 0x5d),
};
static struct soc_camera_link iclink_tvp5150 = {
.bus_id = 0,
.board_info = &visstrim_i2c_camera,
.i2c_adapter_id = 0,
.power = visstrim_camera_power,
.reset = visstrim_camera_reset,
};
static struct mx2_camera_platform_data visstrim_camera = {
.flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |
MX2_CAMERA_PCLK_SAMPLE_RISING,
.clk = 100000,
};
static phys_addr_t mx2_camera_base __initdata;
#define MX2_CAMERA_BUF_SIZE SZ_8M
static void __init visstrim_analog_camera_init(void)
{
struct platform_device *pdev;
int dma;
gpio_set_value(TVP5150_PWDN, 1);
ndelay(1);
gpio_set_value(TVP5150_RSTN, 0);
ndelay(500);
gpio_set_value(TVP5150_RSTN, 1);
ndelay(200000);
pdev = imx27_add_mx2_camera(&visstrim_camera);
if (IS_ERR(pdev))
return;
dma = dma_declare_coherent_memory(&pdev->dev,
mx2_camera_base, mx2_camera_base,
MX2_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
return;
}
static void __init visstrim_reserve(void)
{
/* reserve 4 MiB for mx2-camera */
mx2_camera_base = arm_memblock_steal(3 * MX2_CAMERA_BUF_SIZE,
MX2_CAMERA_BUF_SIZE);
}
/* GPIOs used as events for applications */
static struct gpio_keys_button visstrim_gpio_keys[] = {
{
.type = EV_KEY,
.code = KEY_RESTART,
.gpio = (GPIO_PORTC + 15),
.desc = "Default config",
.active_low = 0,
.wakeup = 1,
},
{
.type = EV_KEY,
.code = KEY_RECORD,
.gpio = (GPIO_PORTF + 14),
.desc = "Record",
.active_low = 0,
.wakeup = 1,
},
{
.type = EV_KEY,
.code = KEY_STOP,
.gpio = (GPIO_PORTF + 13),
.desc = "Stop",
.active_low = 0,
.wakeup = 1,
}
};
static const struct gpio_keys_platform_data
visstrim_gpio_keys_platform_data __initconst = {
.buttons = visstrim_gpio_keys,
.nbuttons = ARRAY_SIZE(visstrim_gpio_keys),
};
/* led */
static const struct gpio_led visstrim_m10_leds[] __initconst = {
{
.name = "visstrim:ld0",
.default_trigger = "nand-disk",
.gpio = (GPIO_PORTC + 29),
},
{
.name = "visstrim:ld1",
.default_trigger = "nand-disk",
.gpio = (GPIO_PORTC + 24),
},
{
.name = "visstrim:ld2",
.default_trigger = "nand-disk",
.gpio = (GPIO_PORTC + 28),
},
{
.name = "visstrim:ld3",
.default_trigger = "nand-disk",
.gpio = (GPIO_PORTC + 25),
},
};
static const struct gpio_led_platform_data visstrim_m10_led_data __initconst = {
.leds = visstrim_m10_leds,
.num_leds = ARRAY_SIZE(visstrim_m10_leds),
};
/* Visstrim_SM10 has a microSD slot connected to sdhc1 */
static int visstrim_m10_sdhc1_init(struct device *dev,
irq_handler_t detect_irq, void *data)
{
int ret;
ret = request_irq(gpio_to_irq(SDHC1_IRQ_GPIO), detect_irq,
IRQF_TRIGGER_FALLING, "mmc-detect", data);
return ret;
}
static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(SDHC1_IRQ_GPIO), data);
}
static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
.init = visstrim_m10_sdhc1_init,
.exit = visstrim_m10_sdhc1_exit,
};
/* Visstrim_SM10 NOR flash */
static struct physmap_flash_data visstrim_m10_flash_data = {
.width = 2,
};
static struct resource visstrim_m10_flash_resource = {
.start = 0xc0000000,
.end = 0xc0000000 + SZ_64M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device visstrim_m10_nor_mtd_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &visstrim_m10_flash_data,
},
.num_resources = 1,
.resource = &visstrim_m10_flash_resource,
};
static struct platform_device *platform_devices[] __initdata = {
&visstrim_m10_nor_mtd_device,
};
/* Visstrim_M10 uses UART0 as console */
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
/* I2C */
static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
.bitrate = 100000,
};
static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
.gpio_base = 240, /* After MX27 internal GPIOs */
.invert = 0,
};
static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
.power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
AIC32X4_PWR_AIC32X4_LDO_ENABLE |
AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
.micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
.swapdacs = false,
};
static struct i2c_board_info visstrim_m10_i2c_devices[] = {
{
I2C_BOARD_INFO("pca9555", 0x20),
.platform_data = &visstrim_m10_pca9555_pdata,
},
{
I2C_BOARD_INFO("tlv320aic32x4", 0x18),
.platform_data = &visstrim_m10_aic32x4_pdata,
},
{
I2C_BOARD_INFO("m41t00", 0x68),
}
};
/* USB OTG */
static int otg_phy_init(struct platform_device *pdev)
{
return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
}
static const struct mxc_usbh_platform_data
visstrim_m10_usbotg_pdata __initconst = {
.init = otg_phy_init,
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
};
/* SSI */
static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
.flags = IMX_SSI_DMA | IMX_SSI_SYN,
};
/* coda */
static void __init visstrim_coda_init(void)
{
struct platform_device *pdev;
int dma;
pdev = imx27_add_coda();
dma = dma_declare_coherent_memory(&pdev->dev,
mx2_camera_base + MX2_CAMERA_BUF_SIZE,
mx2_camera_base + MX2_CAMERA_BUF_SIZE,
MX2_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
return;
}
/* DMA deinterlace */
static struct platform_device visstrim_deinterlace = {
.name = "m2m-deinterlace",
.id = 0,
};
static void __init visstrim_deinterlace_init(void)
{
int ret = -ENOMEM;
struct platform_device *pdev = &visstrim_deinterlace;
int dma;
ret = platform_device_register(pdev);
dma = dma_declare_coherent_memory(&pdev->dev,
mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
MX2_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
return;
}
/* Emma-PrP for format conversion */
static void __init visstrim_emmaprp_init(void)
{
struct platform_device *pdev;
int dma;
pdev = imx27_add_mx2_emmaprp();
if (IS_ERR(pdev))
return;
/*
* Use the same memory area as the analog camera since both
* devices are, by nature, exclusive.
*/
dma = dma_declare_coherent_memory(&pdev->dev,
mx2_camera_base, mx2_camera_base,
MX2_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
pr_err("Failed to declare memory for emmaprp\n");
}
/* Audio */
static const struct snd_mx27vis_platform_data snd_mx27vis_pdata __initconst = {
.amp_gain0_gpio = AMP_GAIN_0,
.amp_gain1_gpio = AMP_GAIN_1,
.amp_mutel_gpio = AMP_MUTE_SDL,
.amp_muter_gpio = AMP_MUTE_SDR,
};
static void __init visstrim_m10_revision(void)
{
int exp_version = 0;
int mo_version = 0;
int ret;
ret = gpio_request_array(visstrim_m10_version_gpios,
ARRAY_SIZE(visstrim_m10_version_gpios));
if (ret) {
pr_err("Failed to request version gpios");
return;
}
/* Get expansion board version (negative logic) */
exp_version |= !gpio_get_value(EXPBOARD_BIT2) << 2;
exp_version |= !gpio_get_value(EXPBOARD_BIT1) << 1;
exp_version |= !gpio_get_value(EXPBOARD_BIT0);
/* Get mother board version (negative logic) */
mo_version |= !gpio_get_value(MOTHERBOARD_BIT2) << 2;
mo_version |= !gpio_get_value(MOTHERBOARD_BIT1) << 1;
mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);
system_rev = 0x27000;
system_rev |= (mo_version << MOTHERBOARD_SHIFT);
system_rev |= (exp_version << EXPBOARD_SHIFT);
}
static void __init visstrim_m10_board_init(void)
{
int ret;
int mo_version;
imx27_soc_init();
visstrim_m10_revision();
ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
if (ret)
pr_err("Failed to setup pins (%d)\n", ret);
ret = gpio_request_array(visstrim_m10_gpios,
ARRAY_SIZE(visstrim_m10_gpios));
if (ret)
pr_err("Failed to request gpios (%d)\n", ret);
imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
imx27_add_imx_uart0(&uart_pdata);
imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
i2c_register_board_info(0, visstrim_m10_i2c_devices,
ARRAY_SIZE(visstrim_m10_i2c_devices));
imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
imx27_add_fec(NULL);
imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
imx_add_platform_device("mx27vis", 0, NULL, 0, &snd_mx27vis_pdata,
sizeof(snd_mx27vis_pdata));
platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
&iclink_tvp5150, sizeof(iclink_tvp5150));
gpio_led_register_device(0, &visstrim_m10_led_data);
/* Use mother board version to decide what video devices we shall use */
mo_version = (system_rev >> MOTHERBOARD_SHIFT) & VERSION_MASK;
if (mo_version & 0x1) {
visstrim_emmaprp_init();
/*
* Despite not being used, tvp5150 must be
* powered on to avoid I2C problems. To minimize
* power consupmtion keep reset enabled.
*/
gpio_set_value(TVP5150_PWDN, 1);
ndelay(1);
gpio_set_value(TVP5150_RSTN, 0);
} else {
visstrim_deinterlace_init();
visstrim_analog_camera_init();
}
visstrim_coda_init();
}
static void __init visstrim_m10_timer_init(void)
{
mx27_clocks_init((unsigned long)25000000);
}
MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
.atag_offset = 0x100,
.reserve = visstrim_reserve,
.map_io = mx27_map_io,
.init_early = imx27_init_early,
.init_irq = mx27_init_irq,
.handle_irq = imx27_handle_irq,
.init_time = visstrim_m10_timer_init,
.init_machine = visstrim_m10_board_init,
.restart = mxc_restart,
MACHINE_END