Date: Sun, 1 Feb 2009 11:49:34 +0800 From: Henry Hu <henry.hu.sh@gmail.com> To: freebsd-mobile@freebsd.org Cc: Alexander Motin <mav@freebsd.org> Subject: Problem about the new sdhci driver Message-ID: <53a1e0710901311949x3b853404oe89cf2ae9a0903f7@mail.gmail.com>
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Hi, I'm using FreeBSD 7-STABLE, with sdhci driver sdhci.20081029.tgz mmc.20081029.tgz I've found that if I load sdhci driver with card inserted, everything works fine. But if I load sdhci driver first, and then insert card, the card is not detected.Additionally, there is no interrupt. After I've load sdhci driver without card, the controller seems to be in a problematic state. The register dump outputed when the driver loaded showed that Present is 0x01f20000 which is correct since the card is not inserted then. But cards is not detected. Even if I unload the driver and reload with card inserted, the card still cannot be detected, and there's no interrupt. But the Present register changed to 0x01fa0000 which is strange. So I guess there's something wrong with the driver when the card is not present. sdhci0: <RICOH R5C822 SD> mem 0xf0401000-0xf04010ff irq 18 at device 9.1 on pci5 sdhci0-slot0: 33MHz 4bits 3.3V DMA sdhci0-slot0: ============== REGISTER DUMP ============== sdhci0-slot0: Sys addr: 0x00000000 | Version: 0x00000200 sdhci0-slot0: Blk size: 0x00000000 | Blk cnt: 0x00000000 sdhci0-slot0: Argument: 0x00000000 | Trn mode: 0x00000000 sdhci0-slot0: Present: 0x01f20000 | Host ctl: 0x00000000 sdhci0-slot0: Power: 0x00000000 | Blk gap: 0x00000000 sdhci0-slot0: Wake-up: 0x00000000 | Clock: 0x00000000 sdhci0-slot0: Timeout: 0x0000000c | Int stat: 0x00000000 sdhci0-slot0: Int enab: 0x01ff00fb | Sig enab: 0x01ff00fb sdhci0-slot0: AC12 err: 0x00000000 | Slot int: 0x00000000 sdhci0-slot0: Caps: 0x01c021a1 | Max curr: 0x00000040 sdhci0-slot0: =========================================== I'm using hw.pci.do_power_nodriver=3 Cheers, Henry
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