I2C with bus muxes

Ben Warren wrote: Hello, Has anyone implemented devices like the Philips PCA954x I2C bus muxes under the /sysfs device model? I have some optical transponders on my board that through the wisdom of some committee all have the same fixed I2C address. To get around this, we put them behind

Question about IRQs on MPC8540

I sent this to Kumar, should have sent directly to the list... I'm porting our kernel base from 2.4-2.6 for our boards and an ODM board. The ODM board is board that is based off of the 8540 ADS. I'm having a bit of a problem understanding what went on btw 2.6.12 and 2.6.16.16 wrt the 85xx

Problem mapping GPIO regs on ppc440gx

Greetings: We've been using a 2.4.30 kernel (with numerous patches) on a AMCC 440gx custom built board for quite some time now. We're building some new hardware that forces us to go to a 2.6 kernel. So, I've downloaded 2.6.16.16 from kernel.org and am porting everything forward from our 2.4.30

Problem mapping GPIO regs on ppc440gx

Answering my own question here... Travis B. Sawyer wrote: Greetings: We've been using a 2.4.30 kernel (with numerous patches) on a AMCC 440gx custom built board for quite some time now. We're building some new hardware that forces us to go to a 2.6 kernel. So, I've downloaded 2.6.16.16 from

TI1520 Cardbus with CF troubles

Greetings: I'm working on getting some cardbus support into a 8540 based platform. We're using a TI1520 cardbus controller (pci-cardbus bridge) and compact flash. (Note: this is using 2.4.30 kernel.org kernel + some patches from the vendor) At first I was getting no interrupts when the

CF card connection to PPC CPUs

Andriy Korud wrote: Hi, Does anybody has experience in connecting CF card to PPC (especially 44x) CPU directly via EBC bus? I see how this can be done in TrueIDE mode, but unfortunately our application requires hot swap capability. Andriy: We've done the direct connect route on a couple of

Artesyn Processor PMC 'Host Bridge' has no IRQ assigned?

David Hawkins wrote: What appears strange to me is that there is no IRQ assigned. Ouch. I haven't used PrPMC boards before, so perhaps this is normal. Travis, you mentioned you'd used this board before. Do you recall if this 'feature' is configurable, i.e., can I enable an interrupt.

Suggestions for a PPC440 board?

David Hawkins wrote: Hi all, I'm evaluating the Yosemite 440EP board at the moment, with the intention of using it on custom compactPCI boards. I've got a few questions to ask the group, but I'll leave those for another email. Snip So, I might not follow this route. Alternatively, I could

2.6 4xx GPIO OCP driver?

Greetings: I'm working on porting our 'package' of software from a 2.4.x kernel to 2.6. We use the GPIO on the 440GX for some indications to our user space applications (board slot number, other board is present, etc). In 2.4 we used the drivers/char/ibm_ocp_gpio.c module. I see no such

2.6 4xx GPIO OCP driver?

Steven Blakeslee wrote: In 2.4 we used the drivers/char/ibm_ocp_gpio.c module. I see no such support in 2.6.10. I perused the archives, found nothing (OBTW: can someone point me to the search engine for the list?) I see it. Drivers/char/ibm_gpio.c in Linux 2.6.10-rc3. I guess I should