On Mon, Aug 26, 2013 at 12:16:00PM -0700, Bing Zhao wrote: > Hi Tobias, > > > As the subject suggests, I am trying to use the SD8787 on a PPC > > system. I have found a few endian related issues (submitted a few > > hours ago), but it is still not working. > > > > So my first question, has anyone successfully used an mwifiex device > > on a big endian system? > > AFAIK, you are probably the first one to try on a big endian system ;) > > > > > Also, I have found that the chip seems to signal interrupts before its > > internal registers are in a consistent state. Specifically, the > > sdio_ireg and wr_bitmask seems to be out of sync. Inserting a small > > delay in mwifiex_interrupt_status (sdio.c), currently 50 us solves the > > problem. Is there some bit that should be polled here to make sure that > > the registers are in a consistent state? > > Can you enable dynamic debug and post the logs showing the register mismatch? > > Thanks, > Bing Hi Bing, Here is the log output without the added udelay. It is always the 0xd9 command that fails, but not always with these sdio_ireg/wr_bitmask values. I have seen these combinations: - sdio_ireg incorrect(2), wr_bitmask incorrect(fffe) - sdio_ireg correct(3), wr_bitmask incorrect(fffe) - sdio_ireg incorrect(2), wr_bitmask correct(ffff) Waiting 50 us before reading the mp_regs always returns the correct response. mmc0: new high speed SDIO card at address 0001 mwifiex_sdio: info: vendor=0x02DF device=0x9119 class=0 function=1 mwifiex_sdio: info: SDIO FUNC1 IO port: 0x10000 mwifiex_sdio mmc0:0001:1: info: downloading FW image (447384 bytes) mwifiex_sdio mmc0:0001:1: info: FW download over, size 447384 bytes mwifiex_sdio mmc0:0001:1: WLAN FW is active mwifiex_sdio mmc0:0001:1: cmd: QUEUE_CMD: cmd=0xa9, cmd_pending=1 mwifiex_sdio mmc0:0001:1: cmd: DNLD_CMD: (1035334.499952): 0xa9, act 0x0, len 8, seqno 0x1 mwifiex_sdio mmc0:0001:1: info: mwifiex_host_to_card_mp_aggr: tx aggregation disabled mwifiex_sdio mmc0:0001:1: data: mwifiex_host_to_card_mp_aggr: send current buffer 0 mwifiex_sdio mmc0:0001:1: int: sdio_ireg = 0x1 mwifiex_sdio mmc0:0001:1: info: cmd_sent=0 data_sent=1 mwifiex_sdio mmc0:0001:1: int: UPLD: rd_bitmap=0x0001 mwifiex_sdio mmc0:0001:1: data: mp_rd_bitmap=0x0001 mwifiex_sdio mmc0:0001:1: data: port=0 mp_rd_bitmap=0x0000 mwifiex_sdio mmc0:0001:1: info: RX: port=0 rx_len=12 mwifiex_sdio mmc0:0001:1: info: rx_len = 256 skb->len = 256 mwifiex_sdio mmc0:0001:1: info: mwifiex_sdio_card_to_host_mp_aggr: no aggregation for cmd response mwifiex_sdio mmc0:0001:1: info: RX: port: 0, rx_len: 256 mwifiex_sdio mmc0:0001:1: info: --- Rx: Cmd Response --- mwifiex_sdio mmc0:0001:1: data: mp_rd_bitmap=0x0000 mwifiex_sdio mmc0:0001:1: info: no more rd_port available mwifiex_sdio mmc0:0001:1: cmd: CMD_RESP: (1035334.645688): 0x80a9, result 0, len 8, seqno 0x1 mwifiex_sdio mmc0:0001:1: cmd completed: status=0 mwifiex_sdio mmc0:0001:1: cmd: FREE_CMD: cmd=0xa9, cmd_pending=0 mwifiex_sdio mmc0:0001:1: cmd: QUEUE_CMD: cmd=0x3, cmd_pending=1 mwifiex_sdio mmc0:0001:1: cmd: DNLD_CMD: (1035334.645742): 0x3, act 0x0, len 71, seqno 0x2 mwifiex_sdio mmc0:0001:1: info: mwifiex_host_to_card_mp_aggr: tx aggregation disabled mwifiex_sdio mmc0:0001:1: data: mwifiex_host_to_card_mp_aggr: send current buffer 0 mwifiex_sdio mmc0:0001:1: int: sdio_ireg = 0x1 mwifiex_sdio mmc0:0001:1: info: cmd_sent=0 data_sent=1 mwifiex_sdio mmc0:0001:1: int: UPLD: rd_bitmap=0x0001 mwifiex_sdio mmc0:0001:1: data: mp_rd_bitmap=0x0001 mwifiex_sdio mmc0:0001:1: data: port=0 mp_rd_bitmap=0x0000 mwifiex_sdio mmc0:0001:1: info: RX: port=0 rx_len=75 mwifiex_sdio mmc0:0001:1: info: rx_len = 256 skb->len = 256 mwifiex_sdio mmc0:0001:1: info: mwifiex_sdio_card_to_host_mp_aggr: no aggregation for cmd response mwifiex_sdio mmc0:0001:1: info: RX: port: 0, rx_len: 256 mwifiex_sdio mmc0:0001:1: info: --- Rx: Cmd Response --- mwifiex_sdio mmc0:0001:1: data: mp_rd_bitmap=0x0000 mwifiex_sdio mmc0:0001:1: info: no more rd_port available mwifiex_sdio mmc0:0001:1: cmd: CMD_RESP: (1035334.664109): 0x8003, result 0, len 71, seqno 0x2 mwifiex_sdio mmc0:0001:1: info: GET_HW_SPEC: fw_release_number- 0x600e4209 mwifiex_sdio mmc0:0001:1: info: GET_HW_SPEC: permanent addr: 00:06:c6:37:45:28 mwifiex_sdio mmc0:0001:1: info: GET_HW_SPEC: hw_if_version=0x2 version=0x41 mwifiex_sdio mmc0:0001:1: cmd: mp_end_port 16, data port mask 0xfffe mwifiex_sdio mmc0:0001:1: cmd completed: status=0 mwifiex_sdio mmc0:0001:1: cmd: FREE_CMD: cmd=0x3, cmd_pending=0 mwifiex_sdio mmc0:0001:1: cmd: set tx_buf=2048 mwifiex_sdio mmc0:0001:1: cmd: QUEUE_CMD: cmd=0xd9, cmd_pending=1 mwifiex_sdio mmc0:0001:1: cmd: DNLD_CMD: (1035334.664215): 0xd9, act 0x1, len 16, seqno 0x3 mwifiex_sdio mmc0:0001:1: info: mwifiex_host_to_card_mp_aggr: tx aggregation disabled mwifiex_sdio mmc0:0001:1: data: mwifiex_host_to_card_mp_aggr: send current buffer 0 mwifiex_sdio mmc0:0001:1: int: sdio_ireg = 0x2 mwifiex_sdio mmc0:0001:1: int: DNLD: wr_bitmap=0xfffe mwifiex_sdio mmc0:0001:1: info: <--- Tx DONE Interrupt ---> mwifiex_sdio mmc0:0001:1: info: cmd_sent=1 data_sent=0 mwifiex_sdio mmc0:0001:1: mwifiex_cmd_timeout_func: Timeout cmd id (1035344.696670) = 0xd9, act = 0x1 mwifiex_sdio mmc0:0001:1: num_data_h2c_failure = 0 mwifiex_sdio mmc0:0001:1: num_cmd_h2c_failure = 0 mwifiex_sdio mmc0:0001:1: num_cmd_timeout = 1 mwifiex_sdio mmc0:0001:1: num_tx_timeout = 0 mwifiex_sdio mmc0:0001:1: last_cmd_index = 3 mwifiex_sdio mmc0:0001:1: last_cmd_id: 00 00 00 a9 00 03 00 d9 00 00 mwifiex_sdio mmc0:0001:1: last_cmd_act: 00 00 00 00 00 00 00 01 00 00 mwifiex_sdio mmc0:0001:1: last_cmd_resp_index = 2 mwifiex_sdio mmc0:0001:1: last_cmd_resp_id: 00 00 80 a9 80 03 00 00 00 00 mwifiex_sdio mmc0:0001:1: last_event_index = 0 mwifiex_sdio mmc0:0001:1: last_event: 00 00 00 00 00 00 00 00 00 00 mwifiex_sdio mmc0:0001:1: data_sent=0 cmd_sent=1 mwifiex_sdio mmc0:0001:1: ps_mode=0 ps_state=0 mwifiex_sdio mmc0:0001:1: cmd: FREE_CMD: cmd=0xd9, cmd_pending=0 mwifiex_sdio mmc0:0001:1: cmd completed: status=-110 mwifiex_sdio mmc0:0001:1: cmd timeout mwifiex_sdio: Resetting card... mwifiex_sdio: info: SDIO func num=1 mwifiex_sdio mmc0:0001:1: cmd: calling mwifiex_shutdown_drv... mwifiex_sdio mmc0:0001:1: info: shutdown mwifiex... mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 0 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 1 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 2 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 3 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 4 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 5 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 6 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 7 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 0, head = dea340d0 mwifiex_sdio mmc0:0001:1: info: Delete node c79be1a0, next = c79be1b0 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 1, head = dea340e0 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 2, head = dea340f0 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 0 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 1 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 2 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 3 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 4 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 5 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 6 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 7 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 0, head = dea340d0 mwifiex_sdio mmc0:0001:1: info: Delete node c79be1b0, next = c79be1c0 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 1, head = dea340e0 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 2, head = dea340f0 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 0 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 1 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 2 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 3 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 4 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 5 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 6 mwifiex_sdio mmc0:0001:1: info: ra_list: freeing buf for tid 7 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 0, head = dea340d0 mwifiex_sdio mmc0:0001:1: info: Delete node c79be1c0, next = dea340d0 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 1, head = dea340e0 mwifiex_sdio mmc0:0001:1: info: delete BSS priority table, bss_type = 0, bss_num = 0, i = 2, head = dea340f0 mwifiex_sdio mmc0:0001:1: info: free cmd buffer mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 0 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 1 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 2 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 3 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 4 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 5 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 6 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 7 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 8 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 9 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 10 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 11 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 12 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 13 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 14 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 15 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 16 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 17 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 18 mwifiex_sdio mmc0:0001:1: cmd: free cmd buffer 19 mwifiex_sdio mmc0:0001:1: cmd: free cmd pool mwifiex_sdio mmc0:0001:1: info: free scan table mwifiex_sdio mmc0:0001:1: cmd: mwifiex_shutdown_drv done WARNING: driver mwifiex_sdio did not remove its interrupt handler! mmc0: card 0001 removed mmc0: new high speed SDIO card at address 0001 mwifiex_sdio: info: vendor=0x02DF device=0x9119 class=0 function=1 mwifiex_sdio: info: SDIO FUNC1 IO port: 0x10000 mwifiex_sdio mmc0:0001:1: info: downloading FW image (447384 bytes) mwifiex_sdio mmc0:0001:1: poll card status failed, tries = 100 mwifiex_sdio mmc0:0001:1: FW download with helper: poll status timeout @ 0 mwifiex_sdio mmc0:0001:1: prog_fw failed ret=0xffffffff Thanks - wkz -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
