linux-toradex.git/arch/powerpc/sysdev/bestcomm/ata.h, branch v2.6.35.8 Linux kernel for Apalis and Colibri modules powerpc/mpc5200: Add MDMA/UDMA support to MPC5200 ATA driver 2008-12-21T09:54:29+00:00 Tim Yamin plasm@roo.me.uk 2008-12-21T09:54:29+00:00 6b61e69e7bc1cfe80ab54c6321f19061f9487ed3 This patch adds MDMA/UDMA support using BestComm for DMA on the MPC5200 platform. Based heavily on previous work by Freescale (Bernard Kuhn, John Rigby) and Domen Puncer. With this patch, a SanDisk Extreme IV CF card gets read speeds of approximately 26.70 MB/sec. Signed-off-by: Tim Yamin <plasm@roo.me.uk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 
This patch adds MDMA/UDMA support using BestComm for DMA on the MPC5200
platform.  Based heavily on previous work by Freescale (Bernard Kuhn,
John Rigby) and Domen Puncer.

With this patch, a SanDisk Extreme IV CF card gets read speeds of
approximately 26.70 MB/sec.

Signed-off-by: Tim Yamin <plasm@roo.me.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
powerpc/mpc5200: Bestcomm fixes to ATA support 2008-12-21T09:54:28+00:00 Tim Yamin plasm@roo.me.uk 2008-12-21T09:54:28+00:00 e4efe3c271c5498ffe7e167eaff01514be2b9a77 1) ata.h has dst_pa in the wrong place (needs to match what the BestComm task microcode in bcom_ata_task.c expects); fix it. 2) The BestComm ATA task priority was changed to maximum in bestcomm_priv.h; this fixes a deadlock issue experienced with heavy DMA occurring on both the ATA and Ethernet BestComm tasks, e.g. when downloading a large file over a LAN to disk. Signed-off-by: Tim Yamin <plasm@roo.me.uk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 
1) ata.h has dst_pa in the wrong place (needs to match what the BestComm
   task microcode in bcom_ata_task.c expects); fix it.

2) The BestComm ATA task priority was changed to maximum in bestcomm_priv.h;
   this fixes a deadlock issue experienced with heavy DMA occurring on
   both the ATA and Ethernet BestComm tasks, e.g. when downloading a large
   file over a LAN to disk.

Signed-off-by: Tim Yamin <plasm@roo.me.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
[POWERPC] bestcomm: ATA task support 2007-10-16T23:09:42+00:00 Sylvain Munaut tnt@246tNt.com 2007-09-16T10:53:28+00:00 9ea68df515392a556388f12c876ca74654e37483 This is the microcode for the ATA task and the associated support code. The microcode itself comes directly from the offical API (v2.2) Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 
This is the microcode for the ATA task and the associated
support code.

The microcode itself comes directly from the offical
API (v2.2)

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>