Hi all, I have ported the code from the present FreeBSD.
Link : https://github.com/spark1729/rtems-libbsd/commits/rpi_sd_card Kindly review the same and suggest changes. The commits are a bit unstructured, the second last one being a huge one. I will be breaking it down into smaller and logical patches while submitting. Files changed/added in the three commits are as follows : freebsd/sys/dev/ofw/ofw_bus.h freebsd/sys/dev/ofw/ofw_bus_if.c freebsd/sys/dev/ofw/ofw_bus_if.h freebsd/sys/dev/ofw/ofw_bus_subr.c freebsd/sys/dev/ofw/ofw_bus_subr.h freebsd/sys/sys/queue.h freebsd/sys/contrib/libfdt/libfdt_env.h freebsd/sys/dev/fdt/fdt_common.c freebsd/sys/dev/fdt/fdt_common.h freebsd/sys/dev/ofw/ofw_bus_subr.c freebsd/sys/sys/slicer.h freebsd/sys/dev/mbox/mbox_if.c freebsd/sys/dev/mbox/mbox_if.h freebsd/sys/dev/ofw/ofw_if.c freebsd/sys/dev/ofw/ofw_if.h freebsd/sys/dev/ofw/ofwvar.h freebsd/sys/dev/ofw/openfirm.c freebsd/sys/dev/ofw/openfirm.h freebsd/sys/dev/sdhci/bcm2835_dma.c freebsd/sys/dev/sdhci/bcm2835_dma.h freebsd/sys/dev/sdhci/bcm2835_mbox.c freebsd/sys/dev/sdhci/bcm2835_mbox.h freebsd/sys/dev/sdhci/bcm2835_mbox_prop.h freebsd/sys/dev/sdhci/bcm2835_sdhci.c freebsd/sys/dev/sdhci/bcm2835_vcbus.h freebsd/sys/dev/sdhci/sdhci.c freebsd/sys/dev/sdhci/sdhci.h freebsd/sys/dev/sdhci/sdhci_if.c freebsd/sys/dev/sdhci/sdhci_if.h Files added to the build process [ libbsd_waf.py ] freebsd/sys/dev/ofw/ofw_bus_if.c freebsd/sys/dev/ofw/ofw_bus_subr.c freebsd/sys/dev/fdt/fdt_common.c freebsd/sys/dev/ofw/ofw_bus_subr.c freebsd/sys/dev/mbox/mbox_if.c freebsd/sys/dev/ofw/ofw_if.c freebsd/sys/dev/ofw/openfirm.c freebsd/sys/dev/sdhci/bcm2835_dma.c freebsd/sys/dev/sdhci/bcm2835_mbox.c freebsd/sys/dev/sdhci/bcm2835_sdhci.c freebsd/sys/dev/sdhci/sdhci.c freebsd/sys/dev/sdhci/sdhci_if.c Errors and how they were resolved : 1. The *_if.m files were converted into *_if.c and *_if.h using the following script : Link <http://opensource.apple.com//source/smb/smb-66/kernel/sys5/kern/makeobjops.pl?txt> 2. fdt and ofw support was added as the driver had dependencies on that. 3. *taskqueue_swi_giant* global is not provided by RTEMS. That was solved by adding a new field to the *sdhci slot* structure - *sdhci_tq*. 4. BUS_PHYSADDR used in bcm_sdhci.c is a macro defined in arm/include/bus.h. This macro is copied bcm_sdhci.c. Presently the SD driver module is built from bcm_sdhci.c using the generic and other functions defined in sdhci.c. However for modularity a different Question : 1. Presently I have just kept the bcm2835 specific code in /dev/sdhci/ directory. I don't think that would be ideal, I wanted to discuss the positioning of the bcm2835 specific files. 2. Presently the SD driver module is built from bcm_sdhci.c using the generic and other functions defined in sdhci.c. Is this fine ? 3. I have used the *.start_actual *in nexus-devices.h for *rpi_dma_res *as* 0x7e007000. *Is this the correct value ? Link <https://www.kernel.org/doc/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt> Note : I have not added the macro LIBBSP_ARM_RASPBERRYPI_BSP_H to bcm2835 specific code. I will be doing that. waf builds everything that was added successfully. Thanks Mudit
_______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
