<pre><tt><tt>Dear Wolfgang,<br><br><br>>No, this is NOT correct. You must not define the same things in<br>>several place, and differently. Use a single definition in your board<br>>config file, and make sure it is correct.<br><br> Now I've taken reference of the TQM866M.h for the I2C RTC and<br>changed the the "include/configs/BOARD.h" as below:<br><br><br>/* enable I2C and select the hardware/software driver */<br><br>#undef CONFIG_HARD_I2C /* I2C with hardware support <br>*/<br>#define CONFIG_SOFT_I2C 1 /* I2C bit-banged <br>*/<br>#define CONFIG_RTC_DS1307 1<br>#define CFG_I2C_SPEED 93000 /* 93 kHz is supposed to work <br>*/<br>#define CFG_I2C_SLAVE 0xFE<br>#ifdef CONFIG_SOFT_I2C<br> /*<br> * * Software (bit-bang) I2C driver configuration<br> * */<br>#define PB_SCL 0x00000020 /* PB 26 */<br>#define PB_SDA 0x00000010 /* PB 27 */<br>#define
I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)<br>#define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)<br>#define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)<br>#define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)<br>#define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \<br> else immr->im_cpm.cp_pbdat &= ~PB_SDA<br>#define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \<br> else immr->im_cpm.cp_pbdat &= ~PB_SCL<br>#define I2C_DELAY udelay(2) /* 1/4 I2C clock duration */<br>#endif /* CONFIG_SOFT_I2C */<br><br><br>All other definitions I've reverted back. But now after the changes <br>done<br>following is what I get:<br><br><br>[ICM] $date<br>i2c_read: chip 68 addr 00 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded 68<br>i2c_read: chip 68 addr 01 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded
68<br>i2c_read: chip 68 addr 02 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded 68<br>i2c_read: chip 68 addr 03 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded 68<br>i2c_read: chip 68 addr 04 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded 68<br>i2c_read: chip 68 addr 05 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded 68<br>i2c_read: chip 68 addr 06 alen 1 buffer 00f3dbf8 len 1<br>i2c_read, no chip responded 68<br>Get RTC year: 00 mon: 00 mday: 00 wday: 00 hr: 00 min: 00 sec: 00<br>Get DATE: 2000-00-00 (wday=7) TIME: 0:00:00<br>Date: 2000-00-00 (unknown day) Time: 0:00:00<br>[ICM] $<br><br>Is there anything still I'm missing, Please do help me in this regard.<br><br>Thanks in Advance!<br><br>--Ganesh<br><br></tt></tt></pre> <br><br><p>
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