Messages in this thread | | | From | sjur.brandeland@stericss ... | Subject | [RFC 0/4] STE-modem remoteproc driver | Date | Fri, 22 Jun 2012 16:31:06 +0200 |
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From: Sjur Brændeland <sjur.brandeland@stericsson.com>
Hi Ohad,
This is the initial stab on the remoteproc driver for ST-Ericsson modems. Please let me know what you think.
remoteproc_ste_modem features: For kicking to work I need to declare what IDs I'm currently using, so I had to iterate over the rproc->notifyids to find the IDs.
A sysfs file is introduced for switching on/off the modem, as modem start-up must be controlled from user space.
As mentioned before I need the firmware to be allocated first in the shared memory are. So in order to reserve space for firmware at the start of the memory region, I had to allocate dma memory before calling rproc_register(), and then releasing it afterward.
I do not yet have an implementation of the stemod_kick module available. It might take a while before this is upstreamed. The stemod_kick functions are looked up dynamically so this is not a build issue.
The platform device is not yet upstreamed either. But it should be pretty simple, it basically just provides the shared memory area to the driver.
I also included one fix in this patch-set. It doesn't seems like carveout for non-iommu is working correctly. I added a simple patch for this. Let me know what you think, and how to proceed for this fix.
Best regards, Sjur Brændeland
Sjur Brændeland (4): remoteproc: Bugfix assign device address to carveout (noiommu) remoteproc: Add custom STE-modem firmware loader. remoteproc: Add API (header file) for kicking STE modems remoteproc: Add driver for STE Modem
drivers/remoteproc/Kconfig | 10 + drivers/remoteproc/Makefile | 3 + drivers/remoteproc/remoteproc_core.c | 4 + drivers/remoteproc/remoteproc_internal.h | 1 + drivers/remoteproc/remoteproc_ste_modem_loader.c | 179 ++++++++++++ drivers/remoteproc/ste_modem_rproc.c | 333 ++++++++++++++++++++++ drivers/remoteproc/stemod_kick.h | 113 ++++++++ 7 files changed, 643 insertions(+), 0 deletions(-) create mode 100644 drivers/remoteproc/remoteproc_ste_modem_loader.c create mode 100644 drivers/remoteproc/ste_modem_rproc.c create mode 100644 drivers/remoteproc/stemod_kick.h
-- 1.7.5.4
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