topic Re: MX53 MC34708 touchscreen in i.MX Processors

MX53 MC34708 touchscreen

vicliu — Fri, 21 Jun 2013 02:58:28 GMT

hi,

I am working with imx53 board and using the mc34708 to provide touchscreen.

I have already load adc driver and MXC touch screen driver, but it doesn't work.

and use evtest /dev/input/event2 for testing.

dmesg:

input: gpio-keys as /devices/platform/gpio-keys/input/input0

input: mxc_power_key as /devices/virtual/input/input1

input: mxc_ts as /devices/virtual/input/input2

mxc input touchscreen loaded

PMIC Light driver loading...

PMIC MC34708 ID:0x14

PMIC powerkey probe

PMIC Character device: successfully loaded

PMIC ADC start probe

what else do I left??

Thanks,

Vic.

Re: MX53 MC34708 touchscreen

weidong_sun — Fri, 21 Jun 2013 09:25:17 GMT

Hello,liu,

please open linux/drivers/input/touchscreen/Kconfig, and found:

depends on MXC_MC13783_ADC || MXC_MC13892_ADC

change it to :

depends on MXC_MC13783_ADC || MXC_MC13892_ADC || MXC_MC34708_ADC

Then when you run make menuconfig on command line, mxc touchscreen driver could be selected.

Then check if MC34708 was initialized in your BSP file. from your log, mc34708 is not found on i2c bus. please open linux/drivers/mxc/pmic/pmic_core_i2c.c , and find pmic_probe funtion, do following modification:

static int __devinit pmic_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int ret = 0;
int pmic_irq;
struct pmic_platform_data *plat_data = client->dev.platform_data;
const char *name="mc34708";
int pmic_index;

/* ret = is_chip_onboard(client);
if (ret == -1)
return -ENODEV;

name = get_chipname(client);*/

......

}

Regards,

Weidong

Re: MX53 MC34708 touchscreen

vicliu — Fri, 21 Jun 2013 10:40:48 GMT

hi,Weidon
Thank you first, I follow your step, but it still does not work.
I even use I2C tool to check this. Seems find out the 0x08 device.

What else information may I provide?

lucid@lucid-desktop:~$ sudo i2cdetect -y -r 0

0 1 2 3 4 5 6 7 8 9 a b c d e f

00: -- -- -- -- -- UU -- -- -- -- -- -- --

10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

70: -- -- -- -- -- -- -- --

Re: MX53 MC34708 touchscreen

weidong_sun — Sat, 22 Jun 2013 03:58:07 GMT

Hello,vic,

Please paste your BSP file(like mx53_loco.c and mx53_loco_mc34708.c) here, Let me check if mc34708 is correctly initialized.

Regards,

Weidong

Re: MX53 MC34708 touchscreen

vicliu — Sat, 22 Jun 2013 12:48:15 GMT

Hi Weidong,

Here is my mx53_loco.c code, and have had little modified by me. Because MC34708 not supply power for USB. My Bsp only has mx53_loco_pmic_mc34708.c. I paste it in the lastest part.

mx53_loco.c:

* 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.

#include <linux/types.h>

#include <linux/sched.h>

#include <linux/delay.h>

#include <linux/pm.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/init.h>

#include <linux/input.h>

#include <linux/nodemask.h>

#include <linux/clk.h>

#include <linux/platform_device.h>

#include <linux/fsl_devices.h>

#include <linux/spi/spi.h>

#include <linux/i2c.h>

#include <linux/ata.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/map.h>

#include <linux/mtd/partitions.h>

#include <linux/regulator/consumer.h>

#include <linux/pmic_external.h>

#include <linux/pmic_status.h>

#include <linux/ipu.h>

#include <linux/mxcfb.h>

#include <linux/pwm_backlight.h>

#include <linux/fec.h>

#include <linux/powerkey.h>

#include <linux/ahci_platform.h>

#include <linux/gpio_keys.h>

#include <linux/mfd/da9052/da9052.h>

#include <mach/common.h>

#include <mach/hardware.h>

#include <asm/irq.h>

#include <asm/setup.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/time.h>

#include <asm/mach/keypad.h>

#include <asm/mach/flash.h>

#include <mach/memory.h>

#include <mach/gpio.h>

#include <mach/mmc.h>

#include <mach/mxc_dvfs.h>

#include <mach/iomux-mx53.h>

#include <mach/i2c.h>

#include <mach/mxc_iim.h>

#include <mach/check_fuse.h>

#include "crm_regs.h"

#include "devices.h"

#include "usb.h"

#include "pmic.h"

#include "mx53_loco.h"

/*!

* @file mach-mx5/mx53_loco.c

* @brief This file contains MX53 loco board specific initialization routines.

* @ingroup MSL_MX53

/* MX53 LOCO GPIO PIN configurations */

#define NVDD_FAULT (0*32 + 5) /* GPIO1_5 */

#define FEC_INT (1*32 + 4) /* GPIO_2_4 */

#define HEADPHONE_DEC_B (1*32 + 5) /* GPIO_2_5 */

#define MIC_DEC_B (1*32 + 6) /* GPIO_2_6 */

#define USER_UI1 (1*32 + 14) /* GPIO_2_14 */

#define USER_UI2 (1*32 + 15) /* GPIO_2_15 */

#define MX53_nONKEY (0*32 + 8) /* GPIO_1_8 */

#define SD3_CD (2*32 + 11) /* GPIO_3_11 */

#define SD3_WP (2*32 + 12) /* GPIO_3_12 */

#define DISP0_POWER_EN (2*32 + 24) /* GPIO_3_24 */

#define DISP0_DET_INT (2*32 + 31) /* GPIO_3_31 */

#define DISP0_RESET (4*32 + 0) /* GPIO_5_0 */

#define CSI0_RTSB (5*32 + 9) /* GPIO_6_9 */

#define CSI0_PWDN (5*32 + 10) /* GPIO_6_10 */

#define ACCL_EN (5*32 + 14) /* GPIO_6_14 */

#define ACCL_INT1_IN (5*32 + 15) /* GPIO_6_15 */

#define ACCL_INT2_IN (5*32 + 16) /* GPIO_6_16 */

#define LCD_BLT_EN (6*32 + 2) /* GPIO_7_2 */

#define FEC_RST (6*32 + 6) /* GPIO_7_6 */

#define USER_LED_EN (6*32 + 7) /* GPIO_7_7 */

#define USB_PWREN (6*32 + 8) /* GPIO_7_8 */

#define NIRQ (6*32 + 11) /* GPIO7_11 */

#define MX53_LOCO_MC34708_IRQ_REVA (4*32 + 30) /* GPIO5_30 */

#define MX53_LOCO_MC34708_IRQ_REVB (4*32 + 23) /* GPIO5_23 */

#define MX53_OFFSET (0x20000000)

#define TZIC_WAKEUP0_OFFSET (0x0E00)

#define TZIC_WAKEUP1_OFFSET (0x0E04)

#define TZIC_WAKEUP2_OFFSET (0x0E08)

#define TZIC_WAKEUP3_OFFSET (0x0E0C)

#define GPIO7_0_11_IRQ_BIT (0x1<<11)

extern void pm_i2c_init(u32 base_addr);

static u32 mx53_loco_mc34708_irq;

static iomux_v3_cfg_t mx53_loco_pads[] = {

/* FEC */

MX53_PAD_FEC_MDC__FEC_MDC,

MX53_PAD_FEC_MDIO__FEC_MDIO,

MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,

MX53_PAD_FEC_RX_ER__FEC_RX_ER,

MX53_PAD_FEC_CRS_DV__FEC_RX_DV,

MX53_PAD_FEC_RXD1__FEC_RDATA_1,

MX53_PAD_FEC_RXD0__FEC_RDATA_0,

MX53_PAD_FEC_TX_EN__FEC_TX_EN,

MX53_PAD_FEC_TXD1__FEC_TDATA_1,

MX53_PAD_FEC_TXD0__FEC_TDATA_0,

/* FEC_nRST */

MX53_PAD_PATA_DA_0__GPIO7_6,

/* FEC_nINT */

MX53_PAD_PATA_DATA4__GPIO2_4,

/* AUDMUX5 */

MX53_PAD_KEY_COL0__AUDMUX_AUD5_TXC,

MX53_PAD_KEY_ROW0__AUDMUX_AUD5_TXD,

MX53_PAD_KEY_COL1__AUDMUX_AUD5_TXFS,

MX53_PAD_KEY_ROW1__AUDMUX_AUD5_RXD,

/* I2C2 */

MX53_PAD_KEY_COL3__I2C2_SCL,

MX53_PAD_KEY_ROW3__I2C2_SDA,

/* I2C3 */

MX53_PAD_GPIO_3__I2C3_SCL,

MX53_PAD_GPIO_6__I2C3_SDA,

/* SD1 */

MX53_PAD_SD1_CMD__ESDHC1_CMD,

MX53_PAD_SD1_CLK__ESDHC1_CLK,

MX53_PAD_SD1_DATA0__ESDHC1_DAT0,

MX53_PAD_SD1_DATA1__ESDHC1_DAT1,

MX53_PAD_SD1_DATA2__ESDHC1_DAT2,

MX53_PAD_SD1_DATA3__ESDHC1_DAT3,

/* SD3 */

MX53_PAD_PATA_DATA8__ESDHC3_DAT0,

MX53_PAD_PATA_DATA9__ESDHC3_DAT1,

MX53_PAD_PATA_DATA10__ESDHC3_DAT2,

MX53_PAD_PATA_DATA11__ESDHC3_DAT3,

MX53_PAD_PATA_DATA0__ESDHC3_DAT4,

MX53_PAD_PATA_DATA1__ESDHC3_DAT5,

MX53_PAD_PATA_DATA2__ESDHC3_DAT6,

MX53_PAD_PATA_DATA3__ESDHC3_DAT7,

MX53_PAD_PATA_IORDY__ESDHC3_CLK,

MX53_PAD_PATA_RESET_B__ESDHC3_CMD,

/* SD3_CD */

MX53_PAD_EIM_DA11__GPIO3_11,

/* SD3_WP */

MX53_PAD_EIM_DA12__GPIO3_12,

/* VGA */

MX53_PAD_EIM_OE__IPU_DI1_PIN7,

MX53_PAD_EIM_RW__IPU_DI1_PIN8,

/* DISPLB */

MX53_PAD_EIM_D20__IPU_SER_DISP0_CS,

MX53_PAD_EIM_D21__IPU_DISPB0_SER_CLK,

MX53_PAD_EIM_D22__IPU_DISPB0_SER_DIN,

MX53_PAD_EIM_D23__IPU_DI0_D0_CS,

/* DISP0_POWER_EN */

MX53_PAD_EIM_D24__GPIO3_24,

/* DISP0 DET INT */

MX53_PAD_EIM_D31__GPIO3_31,

/* LVDS */

MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,

MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,

MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,

MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,

MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,

MX53_PAD_LVDS1_TX3_P__LDB_LVDS1_TX3,

MX53_PAD_LVDS1_TX2_P__LDB_LVDS1_TX2,

MX53_PAD_LVDS1_CLK_P__LDB_LVDS1_CLK,

MX53_PAD_LVDS1_TX1_P__LDB_LVDS1_TX1,

MX53_PAD_LVDS1_TX0_P__LDB_LVDS1_TX0,

/* I2C1 */

MX53_PAD_CSI0_DAT8__I2C1_SDA,

MX53_PAD_CSI0_DAT9__I2C1_SCL,

/* UART1 */

MX53_PAD_CSI0_DAT10__UART1_TXD_MUX,

MX53_PAD_CSI0_DAT11__UART1_RXD_MUX,

/* CSI0 */

MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13,

MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14,

MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15,

MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16,

MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17,

MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18,

MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19,

MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC,

MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC,

MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK,

/* DISPLAY */

MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,

MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,

MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,

MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,

MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,

MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,

MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,

MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,

MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,

MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,

MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,

MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,

MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,

MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,

MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,

MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,

MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,

MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,

MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,

MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,

MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,

MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,

MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,

MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,

MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,

MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,

MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,

MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,

/* Audio CLK*/

MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK,

/* PWM */

MX53_PAD_GPIO_1__PWM2_PWMO,

/* SPDIF */

MX53_PAD_GPIO_7__SPDIF_PLOCK,

MX53_PAD_GPIO_17__SPDIF_OUT1,

/* GPIO */

MX53_PAD_PATA_DA_1__GPIO7_7,

MX53_PAD_PATA_DA_2__GPIO7_8,

MX53_PAD_PATA_DATA5__GPIO2_5,

MX53_PAD_PATA_DATA6__GPIO2_6,

MX53_PAD_PATA_DATA14__GPIO2_14,

MX53_PAD_PATA_DATA15__GPIO2_15,

MX53_PAD_PATA_INTRQ__GPIO7_2,

MX53_PAD_EIM_WAIT__GPIO5_0,

MX53_PAD_NANDF_WP_B__GPIO6_9,

MX53_PAD_NANDF_RB0__GPIO6_10,

MX53_PAD_NANDF_CS1__GPIO6_14,

MX53_PAD_NANDF_CS2__GPIO6_15,

MX53_PAD_NANDF_CS3__GPIO6_16,

MX53_PAD_GPIO_5__GPIO1_5,

MX53_PAD_GPIO_16__GPIO7_11,

MX53_PAD_GPIO_8__GPIO1_8,

};

static void loco_da9053_irq_wakeup_only_fixup(void)

{

void __iomem *tzic_base;

tzic_base = ioremap(MX53_TZIC_BASE_ADDR, SZ_4K);

if (NULL == tzic_base) {

pr_err("fail to map MX53_TZIC_BASE_ADDR\n");

return;

}

__raw_writel(0, tzic_base + TZIC_WAKEUP0_OFFSET);

__raw_writel(0, tzic_base + TZIC_WAKEUP1_OFFSET);

__raw_writel(0, tzic_base + TZIC_WAKEUP2_OFFSET);

/* only enable irq wakeup for da9053 */

__raw_writel(GPIO7_0_11_IRQ_BIT, tzic_base + TZIC_WAKEUP3_OFFSET);

iounmap(tzic_base);

pr_info("only da9053 irq is wakeup-enabled\n");

}

static void loco_suspend_enter(void)

{

if (!board_is_mx53_loco_mc34708()) {

loco_da9053_irq_wakeup_only_fixup();

da9053_suspend_cmd_sw();

}

static void loco_suspend_exit(void)

{

if (!board_is_mx53_loco_mc34708()) {

if (da9053_get_chip_version())

da9053_restore_volt_settings();

}

static struct mxc_pm_platform_data loco_pm_data = {

.suspend_enter = loco_suspend_enter,

.suspend_exit = loco_suspend_exit,

};

static struct fb_videomode video_modes[] = {

{

/* 800x480 @ 57 Hz , pixel clk @ 27MHz */

"CLAA-WVGA", 57, 800, 480, 37037, 40, 60, 10, 10, 20, 10,

FB_SYNC_CLK_LAT_FALL,

FB_VMODE_NONINTERLACED,

0,},

{

/* 800x480 @ 60 Hz , pixel clk @ 32MHz */

"SEIKO-WVGA", 60, 800, 480, 29850, 89, 164, 23, 10, 10, 10,

FB_SYNC_CLK_LAT_FALL,

FB_VMODE_NONINTERLACED,

0,},

{

/* 1600x1200 @ 60 Hz 162M pixel clk*/

"UXGA", 60, 1600, 1200, 6172,

304, 64,

1, 46,

192, 3,

FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,

FB_VMODE_NONINTERLACED,

0,},

};

static struct platform_pwm_backlight_data mxc_pwm_backlight_data = {

.pwm_id = 1,

.max_brightness = 255,

.dft_brightness = 128,

.pwm_period_ns = 50000,

};

extern void mx5_ipu_reset(void);

static struct mxc_ipu_config mxc_ipu_data = {

.rev = 3,

.reset = mx5_ipu_reset,

};

extern void mx5_vpu_reset(void);

static struct mxc_vpu_platform_data mxc_vpu_data = {

.iram_enable = true,

.iram_size = 0x14000,

.reset = mx5_vpu_reset,

};

static struct fec_platform_data fec_data = {

.phy = PHY_INTERFACE_MODE_RMII,

};

static struct mxc_dvfs_platform_data dvfs_core_data = {

.clk1_id = "cpu_clk",

.clk2_id = "gpc_dvfs_clk",

.gpc_cntr_offset = MXC_GPC_CNTR_OFFSET,

.gpc_vcr_offset = MXC_GPC_VCR_OFFSET,

.ccm_cdcr_offset = MXC_CCM_CDCR_OFFSET,

.ccm_cacrr_offset = MXC_CCM_CACRR_OFFSET,

.ccm_cdhipr_offset = MXC_CCM_CDHIPR_OFFSET,

.prediv_mask = 0x1F800,

.prediv_offset = 11,

.prediv_val = 3,

.div3ck_mask = 0xE0000000,

.div3ck_offset = 29,

.div3ck_val = 2,

.emac_val = 0x08,

.upthr_val = 25,

.dnthr_val = 9,

.pncthr_val = 33,

.upcnt_val = 10,

.dncnt_val = 10,

.delay_time = 30,

};

static struct mxc_bus_freq_platform_data bus_freq_data;

static struct tve_platform_data tve_data = {

.boot_enable = MXC_TVE_VGA,

};

static struct ldb_platform_data ldb_data = {

.ext_ref = 1,

};

static void mxc_iim_enable_fuse(void)

{

u32 reg;

if (!ccm_base)

return;

/* enable fuse blown */

reg = readl(ccm_base + 0x64);

reg |= 0x10;

writel(reg, ccm_base + 0x64);

}

static void mxc_iim_disable_fuse(void)

{

u32 reg;

if (!ccm_base)

return;

/* enable fuse blown */

reg = readl(ccm_base + 0x64);

reg &= ~0x10;

writel(reg, ccm_base + 0x64);

}

static struct mxc_iim_data iim_data = {

.bank_start = MXC_IIM_MX53_BANK_START_ADDR,

.bank_end = MXC_IIM_MX53_BANK_END_ADDR,

.enable_fuse = mxc_iim_enable_fuse,

.disable_fuse = mxc_iim_disable_fuse,

};

static struct resource mxcfb_resources[] = {

[0] = {

.flags = IORESOURCE_MEM,

};

static struct mxc_fb_platform_data fb_data[] = {

{

.interface_pix_fmt = IPU_PIX_FMT_RGB565,

.mode_str = "CLAA-WVGA",

.mode = video_modes,

.num_modes = ARRAY_SIZE(video_modes),

{

.interface_pix_fmt = IPU_PIX_FMT_GBR24,

.mode_str = "VGA-XGA",

.mode = video_modes,

.num_modes = ARRAY_SIZE(video_modes),

};

extern int primary_di;

static int __init mxc_init_fb(void)

{

if (!machine_is_mx53_loco())

return 0;

/*for loco board, set default display as VGA*/

if (primary_di < 0)

primary_di = 1;

if (primary_di) {

printk(KERN_INFO "DI1 is primary\n");

/* DI1 -> DP-BG channel: */

mxc_fb_devices[1].num_resources = ARRAY_SIZE(mxcfb_resources);

mxc_fb_devices[1].resource = mxcfb_resources;

mxc_register_device(&mxc_fb_devices[1], &fb_data[1]);

/* DI0 -> DC channel: */

mxc_register_device(&mxc_fb_devices[0], &fb_data[0]);

} else {

printk(KERN_INFO "DI0 is primary\n");

/* DI0 -> DP-BG channel: */

mxc_fb_devices[0].num_resources = ARRAY_SIZE(mxcfb_resources);

mxc_fb_devices[0].resource = mxcfb_resources;

mxc_register_device(&mxc_fb_devices[0], &fb_data[0]);

/* DI1 -> DC channel: */

mxc_register_device(&mxc_fb_devices[1], &fb_data[1]);

}

* DI0/1 DP-FG channel:

mxc_register_device(&mxc_fb_devices[2], NULL);

return 0;

}

device_initcall(mxc_init_fb);

static void sii902x_hdmi_reset(void)

{

gpio_set_value(DISP0_RESET, 0);

msleep(10);

gpio_set_value(DISP0_RESET, 1);

msleep(10);

}

static int sii902x_get_pins(void)

{

/* Sii902x HDMI controller */

gpio_request(DISP0_RESET, "disp0-reset");

gpio_direction_output(DISP0_RESET, 0);

gpio_request(DISP0_DET_INT, "disp0-detect");

gpio_direction_input(DISP0_DET_INT);

return 1;

}

static void sii902x_put_pins(void)

{

gpio_free(DISP0_RESET);

gpio_free(DISP0_DET_INT);

}

static struct mxc_lcd_platform_data sii902x_hdmi_data = {

.reset = sii902x_hdmi_reset,

.fb_id = "DISP3 BG",

.get_pins = sii902x_get_pins,

.put_pins = sii902x_put_pins,

};

static struct imxi2c_platform_data mxci2c_data = {

.bitrate = 100000,

};

static struct i2c_board_info mxc_i2c0_board_info[] __initdata = {

{

.type = "mma8450",

.addr = 0x1C,

};

static struct i2c_board_info mxc_i2c1_board_info[] __initdata = {

{

.type = "sgtl5000-i2c",

.addr = 0x0a,

{

.type = "sii902x",

.addr = 0x39,

.irq = gpio_to_irq(DISP0_DET_INT),

.platform_data = &sii902x_hdmi_data,

};

static int p1003_ts_hw_status(void)

{

return gpio_get_value(DISP0_DET_INT);

}

static struct p1003_ts_platform_data p1003_ts_data = {

.hw_status = p1003_ts_hw_status,

};

static struct i2c_board_info mxc_i2c2_board_info[] __initdata = {

{

.type = "p1003_fwv33",

.addr = 0x41,

.irq = gpio_to_irq(DISP0_DET_INT),

.platform_data = &p1003_ts_data,

{

.type = "egalax_ts",

.addr = 0x4,

.irq = gpio_to_irq(DISP0_DET_INT),

};

static int sdhc_write_protect(struct device *dev)

{

int ret = 0;

if (to_platform_device(dev)->id == 2)

ret = gpio_get_value(SD3_WP);

return ret;

}

static unsigned int sdhc_get_card_det_status(struct device *dev)

{

int ret = 0;

if (to_platform_device(dev)->id == 2)

ret = gpio_get_value(SD3_CD);

return ret;

}

static struct mxc_mmc_platform_data mmc1_data = {

.ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30

| MMC_VDD_31_32,

.caps = MMC_CAP_4_BIT_DATA,

.min_clk = 400000,

.max_clk = 50000000,

.card_inserted_state = 1,

.clock_mmc = "esdhc_clk",

.power_mmc = NULL,

};

static struct mxc_mmc_platform_data mmc3_data = {

.ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30

| MMC_VDD_31_32,

.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA

| MMC_CAP_DATA_DDR,

.min_clk = 400000,

.max_clk = 50000000,

.card_inserted_state = 0,

.status = sdhc_get_card_det_status,

.wp_status = sdhc_write_protect,

.clock_mmc = "esdhc_clk",

};

static int headphone_det_status(void)

{

return (gpio_get_value(HEADPHONE_DEC_B) == 0);

}

static int mxc_sgtl5000_init(void);

static struct mxc_audio_platform_data sgtl5000_data = {

.ssi_num = 1,

.src_port = 2,

.ext_port = 5,

.hp_irq = gpio_to_irq(HEADPHONE_DEC_B),

.hp_status = headphone_det_status,

.init = mxc_sgtl5000_init,

.ext_ram_rx = 1,

};

static int mxc_sgtl5000_init(void)

{

struct clk *ssi_ext1;

int rate;

ssi_ext1 = clk_get(NULL, "ssi_ext1_clk");

if (IS_ERR(ssi_ext1))

return -1;

rate = clk_round_rate(ssi_ext1, 24000000);

if (rate < 8000000 || rate > 27000000) {

printk(KERN_ERR "Error: SGTL5000 mclk freq %d out of range!\n",

rate);

clk_put(ssi_ext1);

return -1;

}

clk_set_rate(ssi_ext1, rate);

clk_enable(ssi_ext1);

sgtl5000_data.sysclk = rate;

return 0;

}

static struct platform_device mxc_sgtl5000_device = {

.name = "imx-3stack-sgtl5000",

};

static struct mxc_asrc_platform_data mxc_asrc_data = {

.channel_bits = 4,

.clk_map_ver = 2,

};

static struct mxc_spdif_platform_data mxc_spdif_data = {

.spdif_tx = 1,

.spdif_rx = 0,

.spdif_clk_44100 = -1, /* Souce from CKIH1 for 44.1K */

/* Source from CCM spdif_clk (24M) for 48k and 32k

* It's not accurate

.spdif_clk_48000 = 1,

.spdif_clkid = 0,

.spdif_clk = NULL, /* spdif bus clk */

};

static struct mxc_audio_platform_data spdif_audio_data = {

.ext_ram_tx = 1,

};

static struct platform_device mxc_spdif_audio_device = {

.name = "imx-spdif-audio-device",

};

static void mx53_loco_usbh1_vbus(bool on)

{

if (on)

gpio_set_value(USB_PWREN, 1);

else

gpio_set_value(USB_PWREN, 0);

}

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)

#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \

{ \

.gpio = gpio_num, \

.type = EV_KEY, \

.code = ev_code, \

.active_low = act_low, \

.desc = "btn " descr, \

.wakeup = wake, \

}

static struct gpio_keys_button loco_buttons[] = {

GPIO_BUTTON(MX53_nONKEY, KEY_POWER, 1, "power", 0),

GPIO_BUTTON(USER_UI1, KEY_VOLUMEUP, 1, "volume-up", 0),

GPIO_BUTTON(USER_UI2, KEY_VOLUMEDOWN, 1, "volume-down", 0),

};

static struct gpio_keys_platform_data loco_button_data = {

.buttons = loco_buttons,

.nbuttons = ARRAY_SIZE(loco_buttons),

};

static struct platform_device loco_button_device = {

.name = "gpio-keys",

.id = -1,

.num_resources = 0,

.dev = {

.platform_data = &loco_button_data,

}

};

static void __init loco_add_device_buttons(void)

{

platform_device_register(&loco_button_device);

}

#else

static void __init loco_add_device_buttons(void) {}

#endif

static void mxc_register_powerkey(pwrkey_callback pk_cb)

{

pmic_event_callback_t power_key_event;

power_key_event.param = (void *)1;

power_key_event.func = (void *)pk_cb;

pmic_event_subscribe(EVENT_PWRONI, power_key_event);

}

static int mxc_pwrkey_getstatus(int id)

{

int sense;

pmic_read_reg(REG_INT_SENSE1, &sense, 0xffffffff);

if (sense & (1 << 3))

return 0;

return 1;

}

static struct power_key_platform_data pwrkey_data = {

.key_value = KEY_F4,

.register_pwrkey = mxc_register_powerkey,

.get_key_status = mxc_pwrkey_getstatus,

};

/*!

* Board specific fixup function. It is called by \b setup_arch() in

* setup.c file very early on during kernel starts. It allows the user to

* statically fill in the proper values for the passed-in parameters. None of

* the parameters is used currently.

* @param desc pointer to \b struct \b machine_desc

* @param tags pointer to \b struct \b tag

* @param cmdline pointer to the command line

* @param mi pointer to \b struct \b meminfo

static void __init fixup_mxc_board(struct machine_desc *desc, struct tag *tags,

char **cmdline, struct meminfo *mi)

{

struct tag *t;

struct tag *mem_tag = 0;

int total_mem = SZ_1G;

int left_mem = 0;

int gpu_mem = SZ_128M;

int fb_mem = SZ_32M;

char *str;

mxc_set_cpu_type(MXC_CPU_MX53);

for_each_tag(mem_tag, tags) {

if (mem_tag->hdr.tag == ATAG_MEM) {

total_mem = mem_tag->u.mem.size;

break;

}

for_each_tag(t, tags) {

if (t->hdr.tag == ATAG_CMDLINE) {

str = t->u.cmdline.cmdline;

str = strstr(str, "mem=");

if (str != NULL) {

str += 4;

left_mem = memparse(str, &str);

}

str = t->u.cmdline.cmdline;

str = strstr(str, "gpu_nommu");

if (str != NULL)

gpu_data.enable_mmu = 0;

str = t->u.cmdline.cmdline;

str = strstr(str, "gpu_memory=");

if (str != NULL) {

str += 11;

gpu_mem = memparse(str, &str);

}

break;

}

if (gpu_data.enable_mmu)

gpu_mem = 0;

if (left_mem == 0 || left_mem > total_mem)

left_mem = total_mem - gpu_mem - fb_mem;

if (mem_tag) {

fb_mem = total_mem - left_mem - gpu_mem;

if (fb_mem < 0) {

gpu_mem = total_mem - left_mem;

fb_mem = 0;

}

mem_tag->u.mem.size = left_mem;

/*reserve memory for gpu*/

if (!gpu_data.enable_mmu) {

gpu_device.resource[5].start =

mem_tag->u.mem.start + left_mem;

gpu_device.resource[5].end =

gpu_device.resource[5].start + gpu_mem - 1;

}

#if defined(CONFIG_FB_MXC_SYNC_PANEL) || \

defined(CONFIG_FB_MXC_SYNC_PANEL_MODULE)

if (fb_mem) {

mxcfb_resources[0].start =

gpu_data.enable_mmu ?

mem_tag->u.mem.start + left_mem :

gpu_device.resource[5].end + 1;

mxcfb_resources[0].end =

mxcfb_resources[0].start + fb_mem - 1;

} else {

mxcfb_resources[0].start = 0;

mxcfb_resources[0].end = 0;

}

#endif

}

static void __init mx53_loco_io_init(void)

{

mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads,

ARRAY_SIZE(mx53_loco_pads));

/* SD3 */

gpio_request(SD3_CD, "sd3-cd");

gpio_direction_input(SD3_CD);

gpio_request(SD3_WP, "sd3-wp");

gpio_direction_input(SD3_WP);

/* reset FEC PHY */

gpio_request(FEC_RST, "fec-rst");

gpio_direction_output(FEC_RST, 0);

gpio_set_value(FEC_RST, 0);

msleep(1);

gpio_set_value(FEC_RST, 1);

/* headphone_det_b */

gpio_request(HEADPHONE_DEC_B, "headphone-dec");

gpio_direction_input(HEADPHONE_DEC_B);

/* USB PWR enable */

gpio_request(USB_PWREN, "usb-pwr");

gpio_direction_output(USB_PWREN, 0);

/* LCD panel power enable */

gpio_request(DISP0_POWER_EN, "disp0-power-en");

gpio_direction_output(DISP0_POWER_EN, 1);

}

/*!

* Board specific initialization.

static void __init mxc_board_init(void)

{

iomux_v3_cfg_t mc34708_int = MX53_PAD_CSI0_DAT12__GPIO5_30;

iomux_v3_cfg_t da9052_csi0_d12;

mxc_ipu_data.di_clk[0] = clk_get(NULL, "ipu_di0_clk");

mxc_ipu_data.di_clk[1] = clk_get(NULL, "ipu_di1_clk");

mxc_ipu_data.csi_clk[0] = clk_get(NULL, "ssi_ext1_clk");

mxc_spdif_data.spdif_core_clk = clk_get(NULL, "spdif_xtal_clk");

clk_put(mxc_spdif_data.spdif_core_clk);

mxcsdhc3_device.resource[2].start = gpio_to_irq(SD3_CD);

mxcsdhc3_device.resource[2].end = gpio_to_irq(SD3_CD);

mxc_cpu_common_init();

mx53_loco_io_init();

mxc_register_device(&mxc_dma_device, NULL);

mxc_register_device(&mxc_wdt_device, NULL);

mxc_register_device(&mxci2c_devices[0], &mxci2c_data);

mxc_register_device(&mxci2c_devices[1], &mxci2c_data);

mxc_register_device(&mxci2c_devices[2], &mxci2c_data);

//if (board_is_mx53_loco_mc34708()) {

if(1){

/* set pmic INT gpio pin */

//if (board_is_rev(BOARD_REV_2)) {/*Board rev A*/

// mc34708_int = MX53_PAD_CSI0_DAT12__GPIO5_30;

// mx53_loco_mc34708_irq = MX53_LOCO_MC34708_IRQ_REVA;

//} else if (board_is_rev(BOARD_REV_4)) {/*Board rev B*/

mc34708_int = MX53_PAD_CSI0_DAT5__GPIO5_23;

mx53_loco_mc34708_irq = MX53_LOCO_MC34708_IRQ_REVB;

// }

mxc_iomux_v3_setup_pad(mc34708_int);

gpio_request(mx53_loco_mc34708_irq, "pmic-int");

gpio_direction_input(mx53_loco_mc34708_irq);

mx53_loco_init_mc34708(mx53_loco_mc34708_irq);

dvfs_core_data.reg_id = "SW1A";

tve_data.dac_reg = "VDAC";

bus_freq_data.gp_reg_id = "SW1A";

bus_freq_data.lp_reg_id = "SW2";

mxc_register_device(&mxc_powerkey_device, &pwrkey_data);

}

else {

da9052_csi0_d12 = MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12;

mxc_iomux_v3_setup_pad(da9052_csi0_d12);

mx53_loco_init_da9052();

dvfs_core_data.reg_id = "DA9052_BUCK_CORE";

tve_data.dac_reg = "DA9052_LDO7";

bus_freq_data.gp_reg_id = "DA9052_BUCK_CORE";

bus_freq_data.lp_reg_id = "DA9052_BUCK_PRO";

}

mxc_register_device(&mxc_rtc_device, NULL);

mxc_register_device(&mxc_ipu_device, &mxc_ipu_data);

mxc_register_device(&mxc_ldb_device, &ldb_data);

mxc_register_device(&mxc_tve_device, &tve_data);

if (!mxc_fuse_get_vpu_status())

mxc_register_device(&mxcvpu_device, &mxc_vpu_data);

if (!mxc_fuse_get_gpu_status())

mxc_register_device(&gpu_device, &gpu_data);

mxc_register_device(&mxcscc_device, NULL);

mxc_register_device(&pm_device, &loco_pm_data);

mxc_register_device(&mxc_dvfs_core_device, &dvfs_core_data);

mxc_register_device(&busfreq_device, &bus_freq_data);

mxc_register_device(&mxc_iim_device, &iim_data);

mxc_register_device(&mxc_pwm2_device, NULL);

mxc_register_device(&mxc_pwm1_backlight_device, &mxc_pwm_backlight_data);

mxc_register_device(&mxcsdhc1_device, &mmc1_data);

mxc_register_device(&mxcsdhc3_device, &mmc3_data);

mxc_register_device(&mxc_ssi1_device, NULL);

mxc_register_device(&mxc_ssi2_device, NULL);

mxc_register_device(&mxc_alsa_spdif_device, &mxc_spdif_data);

mxc_register_device(&ahci_fsl_device, &sata_data);

mxc_register_device(&imx_ahci_device_hwmon, NULL);

mxc_register_device(&mxc_fec_device, &fec_data);

mxc_register_device(&mxc_ptp_device, NULL);

/* ASRC is only available for MX53 TO2.0 */

if (mx53_revision() >= IMX_CHIP_REVISION_2_0) {

mxc_asrc_data.asrc_core_clk = clk_get(NULL, "asrc_clk");

clk_put(mxc_asrc_data.asrc_core_clk);

mxc_asrc_data.asrc_audio_clk = clk_get(NULL, "asrc_serial_clk");

clk_put(mxc_asrc_data.asrc_audio_clk);

mxc_register_device(&mxc_asrc_device, &mxc_asrc_data);

}

i2c_register_board_info(0, mxc_i2c0_board_info,

ARRAY_SIZE(mxc_i2c0_board_info));

i2c_register_board_info(1, mxc_i2c1_board_info,

ARRAY_SIZE(mxc_i2c1_board_info));

i2c_register_board_info(2, mxc_i2c2_board_info,

ARRAY_SIZE(mxc_i2c2_board_info));

sgtl5000_data.ext_ram_clk = clk_get(NULL, "emi_fast_clk");

clk_put(sgtl5000_data.ext_ram_clk);

mxc_register_device(&mxc_sgtl5000_device, &sgtl5000_data);

spdif_audio_data.ext_ram_clk = clk_get(NULL, "emi_fast_clk");

clk_put(spdif_audio_data.ext_ram_clk);

mxc_register_device(&mxc_spdif_audio_device, &spdif_audio_data);

mx5_usb_dr_init();

mx5_set_host1_vbus_func(mx53_loco_usbh1_vbus);

mx5_usbh1_init();

mxc_register_device(&mxc_v4l2_device, NULL);

mxc_register_device(&mxc_v4l2out_device, NULL);

loco_add_device_buttons();

//pm_power_off = da9053_power_off;

pm_power_off = mc34708_power_off;

pm_i2c_init(I2C1_BASE_ADDR - MX53_OFFSET);

}

static void __init mx53_loco_timer_init(void)

{

struct clk *uart_clk;

mx53_clocks_init(32768, 24000000, 0, 0);

uart_clk = clk_get_sys("mxcintuart.0", NULL);

early_console_setup(MX53_BASE_ADDR(UART1_BASE_ADDR), uart_clk);

}

static struct sys_timer mxc_timer = {

.init = mx53_loco_timer_init,

};

* The following uses standard kernel macros define in arch.h in order to

* initialize __mach_desc_MX53_LOCO data structure.

MACHINE_START(MX53_LOCO, "Freescale MX53 LOCO Board")

/* Maintainer: Freescale Semiconductor, Inc. */

.fixup = fixup_mxc_board,

.map_io = mx5_map_io,

.init_irq = mx5_init_irq,

.init_machine = mxc_board_init,

.timer = &mxc_timer,

MACHINE_END

mx53_loco_pmic_mc34708.c:

* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

#include <linux/module.h>

#include <linux/init.h>

#include <linux/platform_device.h>

#include <linux/i2c.h>

#include <linux/irq.h>

#include <linux/interrupt.h>

#include <linux/err.h>

#include <linux/pmic_external.h>

#include <linux/regulator/machine.h>

#include <linux/mfd/mc34708/core.h>

#include <mach/irqs.h>

#include <mach/iomux-mx53.h>

#include <mach/gpio.h>

#include "pmic.h"

* Convenience conversion.

* Here atm, maybe there is somewhere better for this.

#define mV_to_uV(mV) (mV * 1000)

#define uV_to_mV(uV) (uV / 1000)

#define V_to_uV(V) (mV_to_uV(V * 1000))

#define uV_to_V(uV) (uV_to_mV(uV) / 1000)

/* regulator standby mask */

#define GEN1_STBY_MASK (1 << 1)

#define GEN2_STBY_MASK (1 << 13)

#define PLL_STBY_MASK (1 << 16)

#define USB2_STBY_MASK (1 << 19)

#define USB_EN_MASK (1 << 3)

#define REG_MODE_0_ALL_MASK (GEN1_STBY_MASK)

#define SW1A_MODE_MASK (0xf << 0)

#define SW2_MODE_MASK (0xf << 14)

#define SW1A_MODE_VALUE (0xc << 0)

#define SW2_MODE_VALUE (0xc << 14)

#define REG_SW_1_2_MASK (SW1A_MODE_MASK | SW2_MODE_MASK)

#define REG_SW_1_2_VALUE (SW1A_MODE_VALUE | SW2_MODE_VALUE)

#define SW3_MODE_MASK (0xf << 0)

#define SW4A_MODE_MASK (0xf << 6)

#define SW4B_MODE_MASK (0xf << 12)

#define SW5_MODE_MASK (0xf << 18)

#define SW3_MODE_VALUE (0x0 << 0)

#define SW4A_MODE_VALUE (0xc << 6)

#define SW4B_MODE_VALUE (0xc << 12)

#define SW5_MODE_VALUE (0xc << 18)

#define REG_SW_3_4_5_MASK (SW3_MODE_MASK | SW4A_MODE_MASK\

| SW4B_MODE_MASK | SW5_MODE_MASK)

#define REG_SW_3_4_5_VALUE (SW3_MODE_VALUE | SW4A_MODE_VALUE\

| SW4B_MODE_VALUE | SW5_MODE_VALUE)

#define SWBST_MODE_MASK (0x3 << 5)

#define SWBST_MODE_VALUE (0x2 << 5) /*Auto mode*/

#define REG_SWBST_MODE_MASK (SWBST_MODE_MASK)

#define REG_SWBST_MODE_VALUE (SWBST_MODE_VALUE)

#define SWHOLD_MASK (0x1 << 12)

#define MC34708_I2C_DEVICE_NAME "mc34708"

/* 7-bit I2C bus slave address */

#define MC34708_I2C_ADDR (0x08)

#define MX53_LOCO_MC34708_IRQ (4*32 + 30) /* GPIO5_30 */

struct mc34708;

static struct regulator_init_data sw1a_init = {

.constraints = {

.name = "SW1",

.min_uV = 650000,

.max_uV = 1437500,

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.valid_modes_mask = 0,

.always_on = 1,

.boot_on = 1,

.initial_state = PM_SUSPEND_MEM,

.state_mem = {

.uV = 850000,

.mode = REGULATOR_MODE_NORMAL,

.enabled = 1,

};

static struct regulator_init_data sw1b_init = {

.constraints = {

.name = "SW1B",

.min_uV = 650000,

.max_uV = 1437500,

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.valid_modes_mask = 0,

.always_on = 1,

.boot_on = 1,

};

static struct regulator_init_data sw2_init = {

.constraints = {

.name = "SW2",

.min_uV = 650000,

.max_uV = 1437500,

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.always_on = 1,

.boot_on = 1,

.initial_state = PM_SUSPEND_MEM,

.state_mem = {

.uV = 950000,

.mode = REGULATOR_MODE_NORMAL,

.enabled = 1,

}

};

static struct regulator_init_data sw3_init = {

.constraints = {

.name = "SW3",

.min_uV = 650000,

.max_uV = 1425000,

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.boot_on = 1,

}

};

static struct regulator_init_data sw4a_init = {

.constraints = {

.name = "SW4A",

.min_uV = mV_to_uV(1200),

.max_uV = mV_to_uV(3300),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.always_on = 1,

.boot_on = 1,

}

};

static struct regulator_init_data sw4b_init = {

.constraints = {

.name = "SW4B",

.min_uV = mV_to_uV(1200),

.max_uV = mV_to_uV(3300),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.always_on = 1,

.boot_on = 1,

}

};

static struct regulator_init_data sw5_init = {

.constraints = {

.name = "SW5",

.min_uV = mV_to_uV(1200),

.max_uV = mV_to_uV(1975),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.always_on = 1,

.boot_on = 1,

}

};

static struct regulator_init_data vrefddr_init = {

.constraints = {

.name = "VREFDDR",

.always_on = 1,

.boot_on = 1,

}

};

static struct regulator_init_data vusb_init = {

.constraints = {

.name = "VUSB",

.valid_ops_mask = REGULATOR_CHANGE_STATUS,

.boot_on = 1,

.always_on = 1,

}

};

static struct regulator_init_data swbst_init = {

.constraints = {

.name = "SWBST",

.valid_ops_mask = REGULATOR_CHANGE_STATUS,

.boot_on = 1,

.always_on = 1,

}

};

static struct regulator_init_data vpll_init = {

.constraints = {

.name = "VPLL",

.min_uV = mV_to_uV(1200),

.max_uV = mV_to_uV(1800),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.boot_on = 1,

};

static struct regulator_init_data vdac_init = {

.constraints = {

.name = "VDAC",

.min_uV = mV_to_uV(2500),

.max_uV = mV_to_uV(2775),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.boot_on = 1,

.always_on = 1,

}

};

static struct regulator_init_data vusb2_init = {

.constraints = {

.name = "VUSB2",

.min_uV = mV_to_uV(2500),

.max_uV = mV_to_uV(3000),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.boot_on = 1,

.always_on = 1,

}

};

static struct regulator_init_data vgen1_init = {

.constraints = {

.name = "VGEN1",

.min_uV = mV_to_uV(1200),

.max_uV = mV_to_uV(1550),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.always_on = 1,

}

};

static struct regulator_init_data vgen2_init = {

.constraints = {

.name = "VGEN2",

.min_uV = mV_to_uV(2500),

.max_uV = mV_to_uV(3300),

.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,

.always_on = 1,

}

};

static int mc34708_regulator_init(struct mc34708 *mc34708)

{

unsigned int value;

pmic_read_reg(REG_MC34708_IDENTIFICATION, &value, 0xffffff);

pr_info("PMIC MC34708 ID:0x%x\n", value);

printk("PMIC_34708");

/* setting switch operating mode for SW1/2 regulators */

pmic_read_reg(REG_MC34708_SW_1_2_OP, &value, 0xffffff);

value &= ~REG_SW_1_2_MASK;

value |= REG_SW_1_2_VALUE;

pmic_write_reg(REG_MC34708_SW_1_2_OP, value, 0xffffff);

/* setting switch operating mode for SW3/4/5 regulators */

pmic_read_reg(REG_MC34708_SW_3_4_5_OP, &value, 0xffffff);

value &= ~REG_SW_3_4_5_MASK;

value |= REG_SW_3_4_5_VALUE;

pmic_write_reg(REG_MC34708_SW_3_4_5_OP, value, 0xffffff);

/* setting switch operating mode for SWBST regulators */

pmic_read_reg(REG_MC34708_SWBST, &value, 0xffffff);

value &= ~REG_SWBST_MODE_MASK;

value |= REG_SWBST_MODE_VALUE;

pmic_write_reg(REG_MC34708_SWBST, value, 0xffffff);

/* clear SWHOLD bit to enable USB MUX */

pmic_read_reg(REG_MC34708_USB_CONTROL, &value, 0xffffff);

value &= ~SWHOLD_MASK;

pmic_write_reg(REG_MC34708_USB_CONTROL, value, 0xffffff);

/* enable WDI reset*/

pmic_read_reg(REG_MC34708_POWER_CTL2, &value, 0xffffff);

value |= 0x1000;

pmic_write_reg(REG_MC34708_POWER_CTL2, value, 0xffffff);

mc34708_register_regulator(mc34708, MC34708_SW1A, &sw1a_init);

mc34708_register_regulator(mc34708, MC34708_SW1B, &sw1b_init);

mc34708_register_regulator(mc34708, MC34708_SW2, &sw2_init);

mc34708_register_regulator(mc34708, MC34708_SW3, &sw3_init);

mc34708_register_regulator(mc34708, MC34708_SW4A, &sw4a_init);

mc34708_register_regulator(mc34708, MC34708_SW4B, &sw4b_init);

mc34708_register_regulator(mc34708, MC34708_SW5, &sw5_init);

mc34708_register_regulator(mc34708, MC34708_SWBST, &swbst_init);

mc34708_register_regulator(mc34708, MC34708_VPLL, &vpll_init);

mc34708_register_regulator(mc34708, MC34708_VREFDDR, &vrefddr_init);

mc34708_register_regulator(mc34708, MC34708_VDAC, &vdac_init);

mc34708_register_regulator(mc34708, MC34708_VUSB, &vusb_init);

mc34708_register_regulator(mc34708, MC34708_VUSB2, &vusb2_init);

mc34708_register_regulator(mc34708, MC34708_VGEN1, &vgen1_init);

mc34708_register_regulator(mc34708, MC34708_VGEN2, &vgen2_init);

regulator_has_full_constraints();

return 0;

}

static struct mc34708_platform_data mc34708_plat = {

.init = mc34708_regulator_init,

};

static struct i2c_board_info __initdata mc34708_i2c_device = {

I2C_BOARD_INFO(MC34708_I2C_DEVICE_NAME, MC34708_I2C_ADDR),

.platform_data = &mc34708_plat,

};

int __init mx53_loco_init_mc34708(u32 int_gpio)

{

mc34708_i2c_device.irq = gpio_to_irq(int_gpio);/*update INT gpio*/

return i2c_register_board_info(0, &mc34708_i2c_device, 1);

}

Re: MX53 MC34708 touchscreen

weidong_sun — Sat, 22 Jun 2013 15:35:47 GMT

Hello,liu,

The interrupt of MC34708 is using GPIO5_23 or GPIO5_30 ?

Weidong

Re: MX53 MC34708 touchscreen

vicliu — Sun, 23 Jun 2013 03:54:17 GMT

Hello Weidong,

we use CSI0_DATA5 for the pmic_int, where should I modify the code?

Re: MX53 MC34708 touchscreen

weidong_sun — Mon, 24 Jun 2013 04:40:41 GMT

hello,vic

Modified it like following:

static void __init mxc_board_init(void)

{

// iomux_v3_cfg_t mc34708_int = MX53_PAD_CSI0_DAT12__GPIO5_30;

...

mc34708_int = MX53_PAD_CSI0_DAT5__GPIO5_23;

mx53_loco_mc34708_irq = MX53_LOCO_MC34708_IRQ_REVB;

mxc_iomux_v3_setup_pad(mc34708_int);

gpio_request(mx53_loco_mc34708_irq, "pmic-int");

gpio_direction_input(mx53_loco_mc34708_irq);

mx53_loco_init_mc34708(mx53_loco_mc34708_irq);

dvfs_core_data.reg_id = "SW1A";

tve_data.dac_reg = "VDAC";

bus_freq_data.gp_reg_id = "SW1A";

bus_freq_data.lp_reg_id = "SW2";

mxc_register_device(&mxc_powerkey_device, &pwrkey_data);

mxc_register_device(&mxc_rtc_device, NULL);

....

}

Then please paste booting log here !

Reards,

Weidong

Re: MX53 MC34708 touchscreen

weidong_sun — Tue, 25 Jun 2013 03:40:46 GMT

Hello,vic,

Was the issue resolved ?

weidong

Re: MX53 MC34708 touchscreen

vicliu — Tue, 25 Jun 2013 08:10:25 GMT

Hello, Weidong,

sorry late to reply the message, I follow your code to modified
it seems work but still has error, the touch screen is wrong direction ( up change to down, left change to right) ,

I think the I2C communication has still error .
I show you the log in booting,

dmesg

Linux version 2.6.35.3-1129-g691c08a (terrience@BU2-BUILD) (gcc version 4.4.4 (4

.4.4_09.06.2010) ) #174 PREEMPT Tue Jun 25 15:12:03 CST 2013

CPU: ARMv7 Processor [412fc085] revision 5 (ARMv7), cr=10c53c7f

CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache

Machine: Freescale MX53 LOCO Board

Memory policy: ECC disabled, Data cache writeback

On node 0 totalpages: 253952

free_area_init_node: node 0, pgdat 8086a260, node_mem_map 808aa000

DMA zone: 192 pages used for memmap

DMA zone: 0 pages reserved

DMA zone: 24384 pages, LIFO batch:3

Normal zone: 2880 pages used for memmap

Normal zone: 226496 pages, LIFO batch:31

Built 1 zonelists in Zone order, mobility grouping on. Total pages: 250880

Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p1 rootwait rw vide

o=mxcdi0fb:RGB666,XGA di0_primary ldb=single,di=0,ch0_map=SPWG

PID hash table entries: 4096 (order: 2, 16384 bytes)

Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)

Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)

Memory: 480MB 512MB = 992MB total

Memory: 998240k/998240k available, 17568k reserved, 0K highmem

Virtual kernel memory layout:

vector : 0xffff0000 - 0xffff1000 ( 4 kB)

fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)

DMA : 0xf9e00000 - 0xffe00000 ( 96 MB)

vmalloc : 0xe0800000 - 0xf4000000 ( 312 MB)

lowmem : 0x80000000 - 0xe0000000 (1536 MB)

pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)

modules : 0x7f000000 - 0x7fe00000 ( 14 MB)

.init : 0x80008000 - 0x8002d000 ( 148 kB)

.text : 0x8002d000 - 0x80805000 (8032 kB)

.data : 0x80822000 - 0x8086afc0 ( 292 kB)

SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

Hierarchical RCU implementation.

RCU-based detection of stalled CPUs is disabled.

Verbose stalled-CPUs detection is disabled.

NR_IRQS:368

MXC GPIO hardware

MXC IRQ initialized

MXC_Early serial console at MMIO 0x53fbc000 (options '115200')

bootconsole [ttymxc0] enabled

Console: colour dummy device 80x30

Calibrating delay loop... 999.42 BogoMIPS (lpj=4997120)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

CPU: Testing write buffer coherency: ok

regulator: core version 0.5

NET: Registered protocol family 16

i.MX IRAM pool: 128 KB@0xe0840000

IRAM READY

CPU is i.MX53 Revision 2.1

PMIC_REV4

Using SDMA I.API

MXC DMA API initialized

IMX usb wakeup probe

the wakeup pdata is 0x8082f7b8

IMX usb wakeup probe

the wakeup pdata is 0x8082f86c

bio: create slab <bio-0> at 0

SCSI subsystem initialized

libata version 3.00 loaded.

Freescale USB OTG Driver loaded, $Revision: 1.55 $

****************************** NOTICE *****************************

You have seen this notice as you have enabled OTG driver for mx53 LOCO board

For mx53 loco board, the OTG function is unavailable due to hardware limitation

So, Only one usb function (device or host) can be available for certain image

Please config your kernel to disable OTG and the usb function you don't want to

use

And remain the other usb function you would like to use

Below OTG configs should be removed:

CONFIG_MXC_OTG, CONFIG_USB_OTG

Choose one of below configs for host or device function

But DO NOT choose them together

OTG host config

CONFIG_USB_EHCI_ARC_OTG

OTG device config

CONFIG_USB_GADGET

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

i2c i2c-0: Failed to register i2c client mc34708 at 0x08 (-16)

i2c i2c-0: Can't create device at 0x08

IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)

Advanced Linux Sound Architecture Driver Version 1.0.23.

Bluetooth: Core ver 2.15

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

mc34708 Rev 2.4 FinVer 0 detected

PMIC MC34708 ID:0x14

PMIC_34708

regulator: SW1: 650 <--> 1437 mV at 1250 mV

regulator: SW1B: 650 <--> 1437 mV at 1100 mV

regulator: SW2: 650 <--> 1437 mV at 1300 mV

regulator: SW3: 650 <--> 1425 mV at 1200 mV

regulator: SW4A: 1200 <--> 3300 mV at 1500 mV

regulator: SW4B: 1200 <--> 3300 mV at 1500 mV

regulator: SW5: 1200 <--> 1975 mV at 1800 mV

regulator: SWBST:

regulator: VPLL: 1200 <--> 1800 mV at 1800 mV

regulator: VREFDDR:

regulator: VDAC: 2500 <--> 2775 mV at 2775 mV

regulator: VUSB:

regulator: VUSB2: 2500 <--> 3000 mV at 2500 mV

regulator: VGEN1: 1200 <--> 1550 mV at 1300 mV

regulator: VGEN2: 2500 <--> 3300 mV at 2500 mV

pmic 0-0008: Loaded

Switching to clocksource mxc_timer1

NET: Registered protocol family 2

IP route cache hash table entries: 32768 (order: 5, 131072 bytes)

TCP established hash table entries: 131072 (order: 8, 1048576 bytes)

TCP bind hash table entries: 65536 (order: 6, 262144 bytes)

TCP: Hash tables configured (established 131072 bind 65536)

TCP reno registered

UDP hash table entries: 512 (order: 1, 8192 bytes)

UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

LPMode driver module loaded

Static Power Management for Freescale i.MX5

PM driver module loaded

sdram autogating driver module loaded

Bus freq driver module loaded

DI0 is primary

mxc_dvfs_core_probe

DVFS driver module loaded

i.MXC CPU frequency driver

DVFS PER driver module loaded

msgmni has been set to 1949

alg: No test for stdrng (krng)

cryptodev: driver loaded.

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

regulator: get() with no identifier

By setting, SII driver will not be enabled

regulator: get() with no identifier

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)

DMFC high resolution has set, will not change

Console: switching to colour frame buffer device 128x37

mxc_ipu mxc_ipu: Channel already disabled 7

mxc_ipu mxc_ipu: Channel already uninitialized 7

mxc_ipu mxc_ipu: Channel already disabled 10

mxc_ipu mxc_ipu: Channel already uninitialized 10

Serial: MXC Internal UART driver

mxcintuart.0: ttymxc0 at MMIO 0x53fbc000 (irq = 31) is a Freescale i.MX

console [ttymxc0] enabled, bootconsole disabled

mxcintuart.1: ttymxc1 at MMIO 0x53fc0000 (irq = 32) is a Freescale i.MX

mxcintuart.2: ttymxc2 at MMIO 0x5000c000 (irq = 33) is a Freescale i.MX

mxcintuart.3: ttymxc3 at MMIO 0x53ff0000 (irq = 13) is a Freescale i.MX

mxcintuart.4: ttymxc4 at MMIO 0x63f90000 (irq = 86) is a Freescale i.MX

loop: module loaded

MXC MTD nand Driver 3.0

vcan: Virtual CAN interface driver

Freescale FlexCAN Driver

FEC Ethernet Driver

fec_enet_mii_bus: probed

tun: Universal TUN/TAP device driver, 1.6

hso: drivers/net/usb/hso.c: 1.2 Option Wireless

usbcore: registered new interface driver hso

usbcore: registered new interface driver asix

usbcore: registered new interface driver cdc_ether

usbcore: registered new interface driver cdc_eem

usbcore: registered new interface driver smsc75xx

usbcore: registered new interface driver smsc95xx

usbcore: registered new interface driver net1080

usbcore: registered new interface driver cdc_subset

usbcore: registered new interface driver zaurus

usbcore: registered new interface driver hwa-rc

usbmon: debugfs is not available

ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller

fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1

fsl-ehci fsl-ehci.0: irq 18, io base 0x53f80000

fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 1 port detected

fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller

fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2

fsl-ehci fsl-ehci.1: irq 14, io base 0x53f80200

fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00

hub 2-0:1.0: USB hub found

hub 2-0:1.0: 1 port detected

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

usbcore: registered new interface driver usbserial

USB Serial support registered for generic

usbcore: registered new interface driver usbserial_generic

usbserial: USB Serial Driver core

ARC USBOTG Device Controller driver (1 August 2005)

g_ether gadget: using random self ethernet address

g_ether gadget: using random host ethernet address

usb0: MAC ea:59:85:38:b8:9a

usb0: HOST MAC e6:6a:f9:e8:63:1b

g_ether gadget: Ethernet Gadget, version: Memorial Day 2008

g_ether gadget: g_ether ready

Suspend udc for OTG auto detect

fsl-usb2-udc: bind to driver g_ether

mice: PS/2 mouse device common for all mice

input: gpio-keys as /devices/platform/gpio-keys/input/input0

MXC keypad loaded

input: mxc_power_key as /devices/virtual/input/input1

PMIC powerkey probe

egalax_ts 2-0004: egalax_ts: failed to read firmware version

egalax_ts: probe of 2-0004 failed with error -5

p1003_fwv33 2-0041: couldn't read panel infomation.

p1003_fwv33: probe of 2-0041 failed with error -5

mxc_rtc mxc_rtc.0: rtc core: registered mxc_rtc as rtc0

i2c /dev entries driver

IR NEC protocol handler initialized

IR RC5(x) protocol handler initialized

IR RC6 protocol handler initialized

IR JVC protocol handler initialized

IR Sony protocol handler initialized

Linux video capture interface: v2.00

usbcore: registered new interface driver uvcvideo

USB Video Class driver (v0.1.0)

APM Battery Driver

check mma8450 chip ID

mma8450 0-001c: read chip ID 0xfffffffb is not equal to 0xc6!

read chip ID failed

mma8450: probe of 0-001c failed with error -22

add mma8450 i2c driver

MXC WatchDog Driver 2.0

MXC Watchdog # 0 Timer: initial timeout 60 sec

Bluetooth: Virtual HCI driver ver 1.3

Bluetooth: HCI UART driver ver 2.2

Bluetooth: HCIATH3K protocol initialized

Bluetooth: Generic Bluetooth USB driver ver 0.6

usbcore: registered new interface driver btusb

PMIC Character device: successfully loaded

PMIC ADC start probe

PMIC ADC successfully probed by VIC

usb 2-1: new high speed USB device using fsl-ehci and address 2

VPU initialized

mxc_asrc registered

gpu mmu enabled

mxsdhci: MXC Secure Digital Host Controller Interface driver

mxsdhci: MXC SDHCI Controller Driver.

mmc0: SDHCI detect irq 0 irq 1 INTERNAL DMA

mxsdhci: MXC SDHCI Controller Driver.

mmc1: SDHCI detect irq 203 irq 3 INTERNAL DMA

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

Cirrus Logic CS42888 ALSA SoC Codec Driver

sgtl5000-i2c 1-000a: SGTL5000 revision 17

hub 2-1:1.0: USB hub found

hub 2-1:1.0: 5 ports detected

mxc_spdif mxc_spdif.0: MXC SPDIF Audio Transmitter

No device for codec mxc spdif

No device for DAI mxc spdif

No device for DAI imx-ssi-1-0

No device for DAI imx-ssi-1-1

No device for DAI imx-ssi-2-0

No device for DAI imx-ssi-2-1

No device for DAI imx-spdif-dai

DMA Sound Buffer Allocated: Playback UseIram=1 ext_ram=0 buf->addr=f8016000 buf-

>area=e0856000 size=24576

DMA Sound Buffer Allocated: Capture UseIram=1 ext_ram=1 buf->addr=cf3f8000 buf-

>area=faafa000 size=24576

asoc: SGTL5000 <-> imx-ssi-2-0 mapping ok

mmc0: new high speed SDHC card at address e624

mmcblk0: mmc0:e624 SU08G 7.40 GiB

mmcblk0: p1

DMA Sound Buffer Allocated: Playback UseIram=1 ext_ram=1 buf->addr=cf430000 buf-

>area=fab00000 size=24576

asoc: mxc spdif <-> imx-spdif-dai mapping ok

ALSA device list:

#0: imx-3stack (SGTL5000)

#1: imx-3stack-spdif (mxc spdif)

TCP cubic registered

NET: Registered protocol family 17

can: controller area network core (rev 20090105 abi 8)

NET: Registered protocol family 29

can: raw protocol (rev 20090105)

can: broadcast manager protocol (rev 20090105 t)

Bluetooth: L2CAP ver 2.14

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO (Voice Link) ver 0.6

Bluetooth: SCO socket layer initialized

Bluetooth: RFCOMM TTY layer initialized

Bluetooth: RFCOMM socket layer initialized

Bluetooth: RFCOMM ver 1.11

Bluetooth: BNEP (Ethernet Emulation) ver 1.3

Bluetooth: BNEP filters: protocol multicast

Bluetooth: HIDP (Human Interface Emulation) ver 1.2

VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 2

input: mxc_ts as /devices/virtual/input/input2

mxc input touchscreen loaded

mxc_rtc mxc_rtc.0: setting system clock to 1970-01-01 00:00:00 UTC (0)

mc34708_adc : mc34708_adc_read_ts

usb 2-1.1: new high speed USB device using fsl-ehci and address 3

EXT3-fs: barriers not enabled

udc suspend begins

gadget not in device mode, leaving early

mmc1: new high speed SDHC card at address b368

mmcblk1: mmc1:b368 NCard 3.69 GiB (ro)

mmcblk1: p1

smsc95xx v1.0.4

smsc95xx 2-1.1:1.0: usb1: register 'smsc95xx' at usb-fsl-ehci.1-1.1, smsc95xx US

B 2.0 Ethernet, 3e:67:ca:fa:65:92

usb 2-1.4: new high speed USB device using fsl-ehci and address 4

uvcvideo: Found UVC 1.00 device WebCam-HM2055 (058f:5608)

input: WebCam-HM2055 as /devices/platform/fsl-ehci.1/usb2/2-1/2-1.4/2-1.4:1.0/in

put/input3

ehci_fsl_bus_suspend, DR

kjournald starting. Commit interval 5 seconds

EXT3-fs (mmcblk0p1): using internal journal

ext3_orphan_cleanup: deleting unreferenced inode 170921

ext3_orphan_cleanup: deleting unreferenced inode 170272

EXT3-fs (mmcblk0p1): 2 orphan inodes deleted

EXT3-fs (mmcblk0p1): recovery complete

EXT3-fs (mmcblk0p1): mounted filesystem with writeback data mode

VFS: Mounted root (ext3 filesystem) on device 179:1.

Freeing init memory: 148K

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

DMFC high resolution has set, will not change

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

mxc_ipu mxc_ipu: Channel already disabled 9

mxc_ipu mxc_ipu: Channel already uninitialized 9

DMFC high resolution has set, will not change

ehci_fsl_bus_resume, DR

ehci_fsl_bus_suspend, DR

lucid@lucid-desktop:~$

Re: MX53 MC34708 touchscreen

weidong_sun — Thu, 27 Jun 2013 09:18:02 GMT

Hello,vic,

Did you connect other devices on I2C1 bus except MC34708 ?

Weidong

Re: MX53 MC34708 touchscreen

vicliu — Thu, 27 Jun 2013 15:03:57 GMT

Hello Weidong,

The I2C1 bus on our board is only connected with one device MC34708.

But I saw the booting log messages, the sgtl5000 seems also having error.

Bus 2 connected with two devices, one is sgtl5000, and another is the aic32.

sgtl5000_hw_read: read reg error : Reg 0x0e

sgtl5000_write: write reg error : Reg 0x0e = 0x000c

sgtl5000_write: write reg error : Reg 0x02 = 0x0020

sgtl5000_write: write reg error : Reg 0x06 = 0x0130

Re: MX53 MC34708 touchscreen

weidong_sun — Fri, 28 Jun 2013 08:14:28 GMT

Hello,vic,

I don't konw why I2C communication exists errors, if you are in china, please tell me you phone number !

Weidong

Re: MX53 MC34708 touchscreen

vicliu — Fri, 28 Jun 2013 10:56:42 GMT

Hello , Weidong,

Thanks for your help. I am in Taiwan. If you use skype, you can add my account "terrience". @@ I think maybe the errors caused by without installing the correct codec? I just finished porting the RTC driver on I2C 3bus. It seems worked. So, I2C work correctly.

Re: MX53 MC34708 touchscreen

weidong_sun — Thu, 04 Jul 2013 02:40:31 GMT

Hello,vic,

Due to level shifter on I2C2 bus, Errors occured during i2c2 communications, When we use GPIO to emulate soft I2C, communications were right , and sgtl5000 could work normally.

Weidong