Messages in this thread | | | Date | Sat, 24 Sep 2011 08:53:32 +0200 | From | Wolfram Sang <> | Subject | Re: [rtc-linux] Re: [PATCH 2.6.39-rc7] RTC: rtc-ds1307 EEPROM support for ds1388 chip |
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On Fri, Sep 23, 2011 at 04:04:45PM -0700, Andrew Morton wrote: > On Mon, 1 Aug 2011 10:30:57 +1200 > Austin Boyle <Austin.Boyle@Aviatnet.com> wrote: > > > [PATCH 3.0] RTC: EEPROM support for DS1388 > > > > This patch adds support for different sized NVRAM, such as > > the 512 bytes of EEPROM on the DS1388 chip. > > This patch is causing problems in today's linux-next, with x86_64 allmodconfig:
Sorry, I missed the patch so far. The whole approach is not correct.
The EEPROM uses a different I2C slave address (0x69+0x6a) than the RTC (0x68). So, you should be able to use the ds1307-driver on address 0x68 (maybe with minor modifications, didn't check that) and the eeprom part using the at24-driver on address 0x69, selecting the 24c02-type. Despite saving redundant code, at24 handles peculiarities of EEPROMs much better. Can you please report if that works for you?
Regards,
Wolfram
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