Hi all I fail to download firmware to a wifi card with SDIO interface, the following is debug log: ********************************************************************************************************************* sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00108000 mmc1: req done (CMD53): 0: 00002000 00000000 00000000 00000000 mmc1: 0 bytes transferred: -110 mwifiex_sdio mmc1:0001:1: read mp_regs failed mmc1: starting CMD52 arg 1000c000 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 mmc1: starting CMD52 arg 1000c200 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 mmc1: starting CMD52 arg 1000c000 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 mmc1: starting CMD52 arg 10006000 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 0000100d 00000000 00000000 00000000 mmc1: starting CMD52 arg 10008000 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001010 00000000 00000000 00000000 mmc1: starting CMD52 arg 10008200 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 mmc1: starting CMD53 arg 92000100 flags 000001b5 mmc1: blksz 256 blocks 1 flags 00000100 tsac 1000 ms nsac 0 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x02000001 mmc1: ADMA error sdhci: =========== REGISTER DUMP (mmc1)=========== sdhci: Sys addr: 0x5fb23900 | Version: 0x00000401 sdhci: Blk size: 0x00007100 | Blk cnt: 0x00000001 sdhci: Argument: 0x92000100 | Trn mode: 0x00000003 sdhci: Present: 0x01fa3106 | Host ctl: 0x00000013 sdhci: Power: 0x0000000e | Blk gap: 0x00000000 sdhci: Wake-up: 0x00000000 | Clock: 0x0000020f sdhci: Timeout: 0x0000000e | Int stat: 0x00000000 sdhci: Int enab: 0x02ff010b | Sig enab: 0x02ff010b sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 sdhci: Caps: 0x05e80080 | Caps_1: 0x00000000 sdhci: Cmd: 0x0000353a | Max curr: 0x00000000 sdhci: Host ctl2: 0x00000000 sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x5f8c3800 sdhci: =========================================== sdhci [sdhci_show_adma_error()]: mmc1: cf8c3800: DMA 0x5fb09000, LEN 0x0100, At3 mmc1: req done (CMD53): 0: 00002000 00000000 00000000 00000000 mmc1: 0 bytes transferred: -5 mwifiex_sdio mmc1:0001:1: FW download, write iomem (0) failed @ 0 mmc1: starting CMD52 arg 90000004 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001004 00000000 00000000 00000000 mwifiex_sdio mmc1:0001:1: prog_fw failed ret=0xffffffff mwifiex: mwifiex_add_card: firmware init failed SDIO: Disabling IRQ for mmc1:0001:1... mmc1: IRQ thread exiting with code 1 mmc1: starting CMD52 arg 00000800 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001003 00000000 00000000 00000000 mmc1: starting CMD52 arg 80000800 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 SDIO: Disabling device mmc1:0001:1... mmc1: starting CMD52 arg 00000400 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001002 00000000 00000000 00000000 mmc1: starting CMD52 arg 80000400 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 SDIO: Disabled device mmc1:0001:1 mwifiex_sdio: mwifiex_sdio_probe: add card failed SDIO: Disabling device mmc1:0001:1... mmc1: starting CMD52 arg 00000400 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 mmc1: starting CMD52 arg 80000400 flags 00000195 sdhci [sdhci_irq()]: *** mmc1 got interrupt: 0x00000001 mmc1: req done (CMD52): 0: 00001000 00000000 00000000 00000000 SDIO: Disabled device mmc1:0001:1 mwifiex_sdio: probe of mmc1:0001:1 failed with error -1 ******************************************************************************************************************************* I have no idea about that , it worked fine just two days ago. I wonder if it is due to broken hardware. Thanks, Harvey -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html