讯为4412讯为开发板的源码接口说明
该源码位置在：arch/arm/mach-exynos/mach-itop4412.c
1. BSP的总的初始化（入口程序）
static void __init smdk4x12_machine_init(void)
{
#ifdef CONFIG_S3C64XX_DEV_SPI
unsigned int gpio;
struct clk *sclk = NULL;
struct clk *prnt = NULL;
#if 0 //remove by cym 20130529
struct device *spi0_dev = &exynos_device_spi0.dev;
#ifndef CONFIG_FB_S5P_LMS501KF03
struct device *spi1_dev = &exynos_device_spi1.dev;
#endif
#endif
struct device *spi2_dev = &exynos_device_spi2.dev;
#endif
/* remove by cym 20130426 */
#if 0
int err;
#endif
/* end remove */
pm_power_off = smdk4x12_power_off;
s3c_config_sleep_gpio_table = tc4_config_sleep_gpio_table;
samsung_board_rev = get_samsung_board_rev();
#if defined(CONFIG_EXYNOS_DEV_PD) && defined(CONFIG_PM_RUNTIME)
exynos_pd_disable(&exynos4_device_pd[PD_MFC].dev);
exynos_pd_disable(&exynos4_device_pd[PD_G3D].dev);
exynos_pd_disable(&exynos4_device_pd[PD_LCD0].dev);
exynos_pd_disable(&exynos4_device_pd[PD_CAM].dev);
exynos_pd_disable(&exynos4_device_pd[PD_TV].dev);
exynos_pd_disable(&exynos4_device_pd[PD_GPS].dev);
exynos_pd_disable(&exynos4_device_pd[PD_GPS_ALIVE].dev);
exynos_pd_disable(&exynos4_device_pd[PD_ISP].dev);
#elif defined(CONFIG_EXYNOS_DEV_PD)
/*
* These power domains should be always on
* without runtime pm support.
*/
exynos_pd_enable(&exynos4_device_pd[PD_MFC].dev);
exynos_pd_enable(&exynos4_device_pd[PD_G3D].dev);
exynos_pd_enable(&exynos4_device_pd[PD_LCD0].dev);
exynos_pd_enable(&exynos4_device_pd[PD_CAM].dev);
exynos_pd_enable(&exynos4_device_pd[PD_TV].dev);
exynos_pd_enable(&exynos4_device_pd[PD_GPS].dev);
exynos_pd_enable(&exynos4_device_pd[PD_GPS_ALIVE].dev);
exynos_pd_enable(&exynos4_device_pd[PD_ISP].dev);
#endif
s3c_i2c0_set_platdata(NULL);
i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
s3c_i2c1_set_platdata(NULL);
i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
s3c_i2c2_set_platdata(NULL);
i2c_register_board_info(2, i2c_devs2, ARRAY_SIZE(i2c_devs2));
init_lcd_type();
get_lcd_type();
setup_ft5x_width_height();
s3c_i2c3_set_platdata(NULL);
i2c_register_board_info(3, i2c_devs3, ARRAY_SIZE(i2c_devs3));
s3c_i2c4_set_platdata(NULL);
i2c_register_board_info(4, i2c_devs4, ARRAY_SIZE(i2c_devs4));
#ifdef CONFIG_MPU_SENSORS_MPU6050B1
sensor_hw_init();
#endif
s3c_i2c5_set_platdata(NULL);
i2c_register_board_info(5, i2c_devs5, ARRAY_SIZE(i2c_devs5));
//For S5K4EC (using i2c6)
#ifndef CONFIG_CAN_MCP251X
s3c_i2c6_set_platdata(NULL);
i2c_register_board_info(6, i2c_devs6, ARRAY_SIZE(i2c_devs6));
#endif
s3c_i2c7_set_platdata(NULL);
i2c_register_board_info(7, i2c_devs7, ARRAY_SIZE(i2c_devs7));
#ifdef CONFIG_ANDROID_PMEM
android_pmem_set_platdata();
#endif
#if defined(CONFIG_FB_S5P_MIPI_DSIM)
mipi_fb_init();
#endif
#ifdef CONFIG_FB_S3C
dev_set_name(&s5p_device_fimd0.dev, "s3cfb.0");
clk_add_alias("lcd", "exynos4-fb.0", "lcd", &s5p_device_fimd0.dev);
clk_add_alias("sclk_fimd", "exynos4-fb.0", "sclk_fimd", &s5p_device_fimd0.dev);
s5p_fb_setname(0, "exynos4-fb");
#if defined(CONFIG_LCD_AMS369FG06) || defined(CONFIG_LCD_LMS501KF03)
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
#endif
s5p_fimd0_set_platdata(&smdk4x12_lcd0_pdata);
#ifdef CONFIG_FB_MIPI_DSIM
s5p_device_mipi_dsim.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
#endif
#ifdef CONFIG_EXYNOS_DEV_PD
s5p_device_fimd0.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
#endif
#endif
#ifdef CONFIG_FB_S5P
#ifdef CONFIG_FB_S5P_LMS501KF03
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
s3cfb_set_platdata(&lms501kf03_data);
#else
s3cfb_set_platdata(NULL);
#endif
#ifdef CONFIG_FB_S5P_MIPI_DSIM
s5p_device_dsim.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
#endif
#ifdef CONFIG_EXYNOS_DEV_PD
s3c_device_fb.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
#endif
#endif
#ifdef CONFIG_USB_EHCI_S5P
smdk4x12_ehci_init();
#endif
#ifdef CONFIG_USB_OHCI_S5P
smdk4x12_ohci_init();
#endif
#ifdef CONFIG_USB_GADGET
smdk4x12_usbgadget_init();
#endif
samsung_bl_set(&smdk4x12_bl_gpio_info, &smdk4x12_bl_data);
#ifdef CONFIG_EXYNOS4_DEV_DWMCI
exynos_dwmci_set_platdata(&exynos_dwmci_pdata);
#endif
#ifdef CONFIG_VIDEO_EXYNOS_FIMC_IS
exynos4_fimc_is_set_platdata(NULL);
#ifdef CONFIG_EXYNOS_DEV_PD
exynos4_device_fimc_is.dev.parent = &exynos4_device_pd[PD_ISP].dev;
#endif
#endif
#ifdef CONFIG_S3C_DEV_HSMMC
s3c_sdhci0_set_platdata(&smdk4x12_hsmmc0_pdata);
#endif
#ifdef CONFIG_S3C_DEV_HSMMC1
s3c_sdhci1_set_platdata(&smdk4x12_hsmmc1_pdata);
#endif
#ifdef CONFIG_S3C_DEV_HSMMC2
s3c_sdhci2_set_platdata(&smdk4x12_hsmmc2_pdata);
#endif
#ifdef CONFIG_S3C_DEV_HSMMC3
s3c_sdhci3_set_platdata(&smdk4x12_hsmmc3_pdata);
#endif
#ifdef CONFIG_MTK_COMBO_MT66XX
itop4412_wifi_combo_module_gpio_init();
#endif
#ifdef CONFIG_S5P_DEV_MSHC
s3c_mshci_set_platdata(&exynos4_mshc_pdata);
#endif
#if defined(CONFIG_VIDEO_EXYNOS_TV) && defined(CONFIG_VIDEO_EXYNOS_HDMI)
dev_set_name(&s5p_device_hdmi.dev, "exynos4-hdmi");
clk_add_alias("hdmi", "s5p-hdmi", "hdmi", &s5p_device_hdmi.dev);
clk_add_alias("hdmiphy", "s5p-hdmi", "hdmiphy", &s5p_device_hdmi.dev);
s5p_tv_setup();
/* setup dependencies between TV devices */
s5p_device_hdmi.dev.parent = &exynos4_device_pd[PD_TV].dev;
s5p_device_mixer.dev.parent = &exynos4_device_pd[PD_TV].dev;
s5p_i2c_hdmiphy_set_platdata(NULL);
#ifdef CONFIG_VIDEO_EXYNOS_HDMI_CEC
s5p_hdmi_cec_set_platdata(&hdmi_cec_data);
#endif
#endif
#ifdef CONFIG_VIDEO_EXYNOS_FIMC_LITE
smdk4x12_set_camera_flite_platdata();
s3c_set_platdata(&exynos_flite0_default_data,
sizeof(exynos_flite0_default_data), &exynos_device_flite0);
s3c_set_platdata(&exynos_flite1_default_data,
sizeof(exynos_flite1_default_data), &exynos_device_flite1);
#ifdef CONFIG_EXYNOS_DEV_PD
exynos_device_flite0.dev.parent = &exynos4_device_pd[PD_ISP].dev;
exynos_device_flite1.dev.parent = &exynos4_device_pd[PD_ISP].dev;
#endif
#endif
#ifdef CONFIG_EXYNOS_SETUP_THERMAL
s5p_tmu_set_platdata(&exynos_tmu_data);
#endif
#ifdef CONFIG_VIDEO_FIMC
s3c_fimc0_set_platdata(&fimc_plat);
#ifdef CONFIG_TC4_GB
s3c_fimc1_set_platdata(NULL);
s3c_fimc2_set_platdata(&fimc_plat);
#else
s3c_fimc1_set_platdata(&fimc_plat);
s3c_fimc2_set_platdata(NULL);
#endif
s3c_fimc3_set_platdata(NULL);
#ifdef CONFIG_EXYNOS_DEV_PD
s3c_device_fimc0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s3c_device_fimc1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s3c_device_fimc2.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s3c_device_fimc3.dev.parent = &exynos4_device_pd[PD_CAM].dev;
#ifdef CONFIG_EXYNOS4_CONTENT_PATH_PROTECTION
secmem.parent = &exynos4_device_pd[PD_CAM].dev;
#endif
#endif
#ifdef CONFIG_VIDEO_FIMC_MIPI
s3c_csis0_set_platdata(NULL);
s3c_csis1_set_platdata(NULL);
#ifdef CONFIG_EXYNOS_DEV_PD
s3c_device_csis0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s3c_device_csis1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
#endif
#endif
#if defined(CONFIG_ITU_A) || defined(CONFIG_CSI_C) \
|| defined(CONFIG_S5K3H1_CSI_C) || defined(CONFIG_S5K3H2_CSI_C) \
|| defined(CONFIG_S5K6A3_CSI_C)
smdk4x12_cam0_reset(1);
#endif
#if defined(CONFIG_ITU_B) || defined(CONFIG_CSI_D) \
|| defined(CONFIG_S5K3H1_CSI_D) || defined(CONFIG_S5K3H2_CSI_D) \
|| defined(CONFIG_VIDEO_OV5640) \
|| defined(CONFIG_S5K6A3_CSI_D)
smdk4x12_cam1_reset(1);
#endif
#endif /* CONFIG_VIDEO_FIMC */
#ifdef CONFIG_VIDEO_SAMSUNG_S5P_FIMC
smdk4x12_camera_config();
smdk4x12_subdev_config();
dev_set_name(&s5p_device_fimc0.dev, "s3c-fimc.0");
dev_set_name(&s5p_device_fimc1.dev, "s3c-fimc.1");
dev_set_name(&s5p_device_fimc2.dev, "s3c-fimc.2");
dev_set_name(&s5p_device_fimc3.dev, "s3c-fimc.3");
clk_add_alias("fimc", "exynos4210-fimc.0", "fimc", &s5p_device_fimc0.dev);
clk_add_alias("sclk_fimc", "exynos4210-fimc.0", "sclk_fimc",
&s5p_device_fimc0.dev);
clk_add_alias("fimc", "exynos4210-fimc.1", "fimc", &s5p_device_fimc1.dev);
clk_add_alias("sclk_fimc", "exynos4210-fimc.1", "sclk_fimc",
&s5p_device_fimc1.dev);
clk_add_alias("fimc", "exynos4210-fimc.2", "fimc", &s5p_device_fimc2.dev);
clk_add_alias("sclk_fimc", "exynos4210-fimc.2", "sclk_fimc",
&s5p_device_fimc2.dev);
clk_add_alias("fimc", "exynos4210-fimc.3", "fimc", &s5p_device_fimc3.dev);
clk_add_alias("sclk_fimc", "exynos4210-fimc.3", "sclk_fimc",
&s5p_device_fimc3.dev);
s3c_fimc_setname(0, "exynos4210-fimc");
s3c_fimc_setname(1, "exynos4210-fimc");
s3c_fimc_setname(2, "exynos4210-fimc");
s3c_fimc_setname(3, "exynos4210-fimc");
/* FIMC */
s3c_set_platdata(&s3c_fimc0_default_data,
sizeof(s3c_fimc0_default_data), &s5p_device_fimc0);
s3c_set_platdata(&s3c_fimc1_default_data,
sizeof(s3c_fimc1_default_data), &s5p_device_fimc1);
s3c_set_platdata(&s3c_fimc2_default_data,
sizeof(s3c_fimc2_default_data), &s5p_device_fimc2);
s3c_set_platdata(&s3c_fimc3_default_data,
sizeof(s3c_fimc3_default_data), &s5p_device_fimc3);
#ifdef CONFIG_EXYNOS_DEV_PD
s5p_device_fimc0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s5p_device_fimc1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s5p_device_fimc2.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s5p_device_fimc3.dev.parent = &exynos4_device_pd[PD_CAM].dev;
#endif
#ifdef CONFIG_VIDEO_S5P_MIPI_CSIS
dev_set_name(&s5p_device_mipi_csis0.dev, "s3c-csis.0");
dev_set_name(&s5p_device_mipi_csis1.dev, "s3c-csis.1");
clk_add_alias("csis", "s5p-mipi-csis.0", "csis",
&s5p_device_mipi_csis0.dev);
clk_add_alias("sclk_csis", "s5p-mipi-csis.0", "sclk_csis",
&s5p_device_mipi_csis0.dev);
clk_add_alias("csis", "s5p-mipi-csis.1", "csis",
&s5p_device_mipi_csis1.dev);
clk_add_alias("sclk_csis", "s5p-mipi-csis.1", "sclk_csis",
&s5p_device_mipi_csis1.dev);
dev_set_name(&s5p_device_mipi_csis0.dev, "s5p-mipi-csis.0");
dev_set_name(&s5p_device_mipi_csis1.dev, "s5p-mipi-csis.1");
s3c_set_platdata(&s5p_mipi_csis0_default_data,
sizeof(s5p_mipi_csis0_default_data), &s5p_device_mipi_csis0);
s3c_set_platdata(&s5p_mipi_csis1_default_data,
sizeof(s5p_mipi_csis1_default_data), &s5p_device_mipi_csis1);
#ifdef CONFIG_EXYNOS_DEV_PD
s5p_device_mipi_csis0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
s5p_device_mipi_csis1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
#endif
#endif
#if defined(CONFIG_ITU_A) || defined(CONFIG_CSI_C) \
|| defined(CONFIG_S5K3H1_CSI_C) || defined(CONFIG_S5K3H2_CSI_C) \
|| defined(CONFIG_S5K6A3_CSI_C)
smdk4x12_cam0_reset(1);
#endif
#if defined(CONFIG_ITU_B) || defined(CONFIG_CSI_D) \
|| defined(CONFIG_S5K3H1_CSI_D) || defined(CONFIG_S5K3H2_CSI_D) \
|| defined(CONFIG_S5K6A3_CSI_D)
smdk4x12_cam1_reset(1);
#endif
#endif
#if defined(CONFIG_VIDEO_TVOUT)
s5p_hdmi_hpd_set_platdata(&hdmi_hpd_data);
s5p_hdmi_cec_set_platdata(&hdmi_cec_data);
#ifdef CONFIG_EXYNOS_DEV_PD
s5p_device_tvout.dev.parent = &exynos4_device_pd[PD_TV].dev;
exynos4_device_pd[PD_TV].dev.parent= &exynos4_device_pd[PD_LCD0].dev;
#endif
#endif
#if defined(CONFIG_VIDEO_JPEG_V2X) || defined(CONFIG_VIDEO_JPEG)
#ifdef CONFIG_EXYNOS_DEV_PD
s5p_device_jpeg.dev.parent = &exynos4_device_pd[PD_CAM].dev;
exynos4_jpeg_setup_clock(&s5p_device_jpeg.dev, 160000000);
#endif
#endif
#ifdef CONFIG_ION_EXYNOS
exynos_ion_set_platdata();
#endif
#if defined(CONFIG_VIDEO_MFC5X) || defined(CONFIG_VIDEO_SAMSUNG_S5P_MFC)
#ifdef CONFIG_EXYNOS_DEV_PD
s5p_device_mfc.dev.parent = &exynos4_device_pd[PD_MFC].dev;
#endif
if (soc_is_exynos4412() && samsung_rev() >= EXYNOS4412_REV_1_0)
exynos4_mfc_setup_clock(&s5p_device_mfc.dev, 200 * MHZ);
else
exynos4_mfc_setup_clock(&s5p_device_mfc.dev, 267 * MHZ);
#endif
#if defined(CONFIG_VIDEO_SAMSUNG_S5P_MFC)
dev_set_name(&s5p_device_mfc.dev, "s3c-mfc");
clk_add_alias("mfc", "s5p-mfc", "mfc", &s5p_device_mfc.dev);
s5p_mfc_setname(&s5p_device_mfc, "s5p-mfc");
#endif
#ifdef CONFIG_VIDEO_FIMG2D
s5p_fimg2d_set_platdata(&fimg2d_data);
#endif
#ifdef CONFIG_SAMSUNG_DEV_KEYPAD
samsung_keypad_set_platdata(&smdk4x12_keypad_data);
#endif
/* add by cym 20131114 */
#ifdef CONFIG_USB_NET_DM9620
dm9620_reset();
#endif
/* end add */
#ifdef CONFIG_EXYNOS_C2C
exynos_c2c_set_platdata(&smdk4x12_c2c_pdata);
#endif
#ifndef CONFIG_TC4_GB
exynos_sysmmu_init();
#endif
smdk4x12_gpio_power_init();
platform_add_devices(smdk4x12_devices, ARRAY_SIZE(smdk4x12_devices));
if (soc_is_exynos4412())
platform_add_devices(smdk4412_devices, ARRAY_SIZE(smdk4412_devices));
#ifdef CONFIG_FB_S3C
exynos4_fimd0_setup_clock(&s5p_device_fimd0.dev, "mout_mpll_user",
800 * MHZ);
#endif
#ifdef CONFIG_S3C64XX_DEV_SPI
#if 0 //remove by cym 20130529
sclk = clk_get(spi0_dev, "dout_spi0");
if (IS_ERR(sclk))
dev_err(spi0_dev, "failed to get sclk for SPI-0\n");
prnt = clk_get(spi0_dev, "mout_mpll_user");
if (IS_ERR(prnt))
dev_err(spi0_dev, "failed to get prnt\n");
if (clk_set_parent(sclk, prnt))
printk(KERN_ERR "Unable to set parent %s of clock %s.\n",
prnt->name, sclk->name);
clk_set_rate(sclk, 800 * 1000 * 1000);
clk_put(sclk);
clk_put(prnt);
if (!gpio_request(EXYNOS4_GPB(1), "SPI_CS0")) {
gpio_direction_output(EXYNOS4_GPB(1), 1);
s3c_gpio_cfgpin(EXYNOS4_GPB(1), S3C_GPIO_SFN(1));
s3c_gpio_setpull(EXYNOS4_GPB(1), S3C_GPIO_PULL_UP);
exynos_spi_set_info(0, EXYNOS_SPI_SRCCLK_SCLK,
ARRAY_SIZE(spi0_csi));
}
for (gpio = EXYNOS4_GPB(0); gpio < EXYNOS4_GPB(4); gpio++)
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV3);
spi_register_board_info(spi0_board_info, ARRAY_SIZE(spi0_board_info));
#ifndef CONFIG_FB_S5P_LMS501KF03
sclk = clk_get(spi1_dev, "dout_spi1");
if (IS_ERR(sclk))
dev_err(spi1_dev, "failed to get sclk for SPI-1\n");
prnt = clk_get(spi1_dev, "mout_mpll_user");
if (IS_ERR(prnt))
dev_err(spi1_dev, "failed to get prnt\n");
if (clk_set_parent(sclk, prnt))
printk(KERN_ERR "Unable to set parent %s of clock %s.\n",
prnt->name, sclk->name);
clk_set_rate(sclk, 800 * 1000 * 1000);
clk_put(sclk);
clk_put(prnt);
if (!gpio_request(EXYNOS4_GPB(5), "SPI_CS1")) {
gpio_direction_output(EXYNOS4_GPB(5), 1);
s3c_gpio_cfgpin(EXYNOS4_GPB(5), S3C_GPIO_SFN(1));
s3c_gpio_setpull(EXYNOS4_GPB(5), S3C_GPIO_PULL_UP);
exynos_spi_set_info(1, EXYNOS_SPI_SRCCLK_SCLK,
ARRAY_SIZE(spi1_csi));
}
for (gpio = EXYNOS4_GPB(4); gpio < EXYNOS4_GPB(8); gpio++)
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV3);
spi_register_board_info(spi1_board_info, ARRAY_SIZE(spi1_board_info));
#endif
#endif
sclk = clk_get(spi2_dev, "dout_spi2");
if (IS_ERR(sclk))
dev_err(spi2_dev, "failed to get sclk for SPI-2\n");
prnt = clk_get(spi2_dev, "mout_mpll_user");
if (IS_ERR(prnt))
dev_err(spi2_dev, "failed to get prnt\n");
if (clk_set_parent(sclk, prnt))
printk(KERN_ERR "Unable to set parent %s of clock %s.\n",
prnt->name, sclk->name);
clk_set_rate(sclk, 800 * 1000 * 1000);
clk_put(sclk);
clk_put(prnt);
if (!gpio_request(EXYNOS4_GPC1(2), "SPI_CS2")) {
gpio_direction_output(EXYNOS4_GPC1(2), 1);
s3c_gpio_cfgpin(EXYNOS4_GPC1(2), S3C_GPIO_SFN(1));
s3c_gpio_setpull(EXYNOS4_GPC1(2), S3C_GPIO_PULL_UP);
exynos_spi_set_info(2, EXYNOS_SPI_SRCCLK_SCLK,
ARRAY_SIZE(spi2_csi));
}
for (gpio = EXYNOS4_GPC1(1); gpio < EXYNOS4_GPC1(5); gpio++)
s5p_gpio_set_drvstr(gpio, S5P_GPIO_DRVSTR_LV3);
spi_register_board_info(spi2_board_info, ARRAY_SIZE(spi2_board_info));
#endif
#ifdef CONFIG_BUSFREQ_OPP
dev_add(&busfreq, &exynos4_busfreq.dev);
ppmu_init(&exynos_ppmu[PPMU_DMC0], &exynos4_busfreq.dev);
ppmu_init(&exynos_ppmu[PPMU_DMC1], &exynos4_busfreq.dev);
ppmu_init(&exynos_ppmu[PPMU_CPU], &exynos4_busfreq.dev);
#endif
register_reboot_notifier(&exynos4_reboot_notifier);
}
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2. I2C接口
/* ly 20111102 : i2c devs mapping:
* i2c0 : HDMI （DDC全文为Display Data Channel）
* i2c1 : max8997: PMIC & RTC & motor（S5M8767的电源管理IC(PMIC)）
* i2c2 : not used
* i2c3 : touch（触摸芯片ft5x06）
* i2c4 : max8997 fuel gauge & wm8960（音频编解码芯片）
* i2c5 : sensor: MPU3050（三轴陀螺仪芯片）
* i2c6 : camera & HSIC （内核加载摄像头驱动，在这里并没有配置）
* i2c7 : light sensor （TSC2007触摸芯片，暂时没用）
*/
static struct i2c_board_info i2c_devs0[] __initdata = {
#ifdef CONFIG_VIDEO_TVOUT
{
I2C_BOARD_INFO("s5p_ddc", (0x74 >> 1)),
},
#endif
};
static struct i2c_board_info i2c_devs1[] __initdata = {
{
#ifdef CONFIG_REGULATOR_S5M8767
I2C_BOARD_INFO("s5m87xx", 0xCC >> 1),
.platform_data = &exynos4_s5m8767_pdata,
.irq = IRQ_EINT(15),
#endif
},
};
#if 1 //iic 2 : nfc
static struct i2c_board_info i2c_devs2[] __initdata = {
};
#endif
// For S5K4EC(using i2c6)
#ifndef CONFIG_CAN_MCP251X
static struct i2c_board_info i2c_devs6[] __initdata = {
};
#endif
/* add by cym 20130515 */
#ifdef CONFIG_TOUCHSCREEN_FT5X0X
#include
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3.背光接口
/* LCD Backlight data */
static struct samsung_bl_gpio_info smdk4x12_bl_gpio_info = {
.no = EXYNOS4_GPD0(1),
.func = S3C_GPIO_SFN(2),
};
static struct platform_pwm_backlight_data smdk4x12_bl_data = {
.pwm_id = 1,
#ifdef CONFIG_FB_S5P_LMS501KF03
.pwm_period_ns = 1000,
#endif
};
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4. 六轴运动处理组件
#ifdef CONFIG_MPU_SENSORS_MPU6050B1
void sensor_hw_init(void)
{
printk("%s: line = %d\n", __FUNCTION__, __LINE__);
if (gpio_request(EXYNOS4_GPX3(3), "MPU6050 INT"))
printk(KERN_WARNING "MPU6050 INT(GPX3.3) Port request error!!!\n");
else {
s3c_gpio_setpull(EXYNOS4_GPX3(3), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(EXYNOS4_GPX3(3), S3C_GPIO_SFN(0));
gpio_direction_input(EXYNOS4_GPX3(3));
gpio_free(EXYNOS4_GPX3(3));
}
/* Sensor AK8975 DRDY */
/* if (gpio_request(EXYNOS4_GPX1(4), "AK8975 RDY"))
printk(KERN_WARNING "AK8975 RDY(GPX1.4) Port request error!!!\n");
else {
s3c_gpio_setpull(EXYNOS4_GPX1(4), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(EXYNOS4_GPX1(4), S3C_GPIO_SFN(0));
gpio_direction_input(EXYNOS4_GPX1(4));
gpio_free(EXYNOS4_GPX1(4));
}
//enable_irq(IRQ_EINT(27));
*/
}
static struct mpu_platform_data mpu6050_data = {
.int_config = 0x10,
.orientation = {
0, -1, 0,
-1, 0, 0,
0, 0, -1},
.level_shifter = 0,
};
static struct ext_slave_platform_data inv_mpu_compass_data = {
.bus = EXT_SLAVE_BUS_PRIMARY,
.orientation = {
-1, 0, 0,
0, 1, 0,
0, 0, -1},
};