Hi David, David Vrabel wrote: > These patches add support for SDIO cards to the omap_hsmmc driver. Less > restrictions on the sizes of transfers, power management changes to > prevent SDIO cards from being turned off and losing all state, and card > interrupts. > > I've been unable to test these exact patches as I only have an N900 for > testing and the N900 support in mainline is incomplete.
I've tried your patches on CM-T35 that has 8686 SDIO and the result was absence of MMC/SDIO devices at all :( Morover, kmmcd hangs: [ 399.427764] INFO: task kmmcd:149 blocked for more than 120 seconds. [ 399.434082] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 399.442016] kmmcd D c027f804 0 149 2 0x00000000 [ 399.448333] [<c027f804>] (schedule+0x274/0x2ac) from [<c027fa08>] (schedule_timeout+0x18/0x17c) [ 399.457122] [<c027fa08>] (schedule_timeout+0x18/0x17c) from [<c027f484>] (wait_for_common+0xc0/0x14c) [ 399.466461] [<c027f484>] (wait_for_common+0xc0/0x14c) from [<c01e61e0>] (mmc_wait_for_req+0x1f4/0x214) [ 399.475860] [<c01e61e0>] (mmc_wait_for_req+0x1f4/0x214) from [<c01e6264>] (mmc_wait_for_cmd+0x64/0x74) [ 399.485290] [<c01e6264>] (mmc_wait_for_cmd+0x64/0x74) from [<c01e86b0>] (mmc_go_idle+0x60/0xac) [ 399.494079] [<c01e86b0>] (mmc_go_idle+0x60/0xac) from [<c01e6bb8>] (mmc_rescan+0x150/0x208) [ 399.502532] [<c01e6bb8>] (mmc_rescan+0x150/0x208) from [<c005e288>] (worker_thread+0xf0/0x168) [ 399.511260] [<c005e288>] (worker_thread+0xf0/0x168) from [<c0060dbc>] (kthread+0x7c/0x84) [ 399.519531] [<c0060dbc>] (kthread+0x7c/0x84) from [<c002ae50>] (kernel_thread_exit+0x0/0x8) I'll try to debug it more today and see what is going on wrong... > David Vrabel (3): > mmc: omap_hsmmc: use packet sync'd DMA > mmc: omap_hsmmc: don't turn SDIO cards off when idle > mmc: omap_hsmmc: enable SDIO card interrupts > > drivers/mmc/host/omap_hsmmc.c | 123 > ++++++++++++++++++++++++++--------------- > 1 files changed, 78 insertions(+), 45 deletions(-) > -- Sincerely yours, Mike. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
