Hi Andrei, On Mon, May 23 2011, Andrei Warkentin wrote: > Enables Auto-CMD23 support where available (SDHCI 3.0 controllers) > > Cc: arindam.nath@xxxxxxx > Cc: cjb@xxxxxxxxxx > Cc: arnd@xxxxxxxx > Cc: subhashj@xxxxxxxxxxxxxx > Cc: malchev@xxxxxxxxxx > Tested-by: Arindam Nath <arindam.nath@xxxxxxx> > Signed-off-by: Andrei Warkentin <andreiw@xxxxxxxxxxxx> Looks like this patch is breaking boot on my XO-1.75/Marvell MMP2 A2 with SD 3.0 controller. :/ [ 1.217156] sdhci: Secure Digital Host Controller Interface driver [ 1.223361] sdhci: Copyright(c) Pierre Ossman [ 1.227793] mmc0: Auto-CMD23 available [ 1.227793] mmc0: no vmmc regulator found [ 1.242557] mmc0: SDHCI controller on MMC [sdhci-pxa.0] using DMA [ 1.248748] mmc1: Auto-CMD23 available [ 1.252479] mmc1: no vmmc regulator found [ 1.256599] mmc1: SDHCI controller on MMC [sdhci-pxa.1] using DMA [ 1.262694] mmc2: Auto-CMD23 available [ 1.266571] mmc2: no vmmc regulator found [ 1.270655] mmc2: SDHCI controller on MMC [sdhci-pxa.2] using DMA [ 1.656280] mmc1: new SDIO card at address 0001 [ 2.423849] libertas: 20:7c:8f:4a:79:c5, fw 9.70.7p0, cap 0x000003a3 [ 2.432951] libertas: wlan0: Marvell WLAN 802.11 adapter [ 2.438262] Waiting for root device /dev/mmcblk0p2... [ 2.528607] mmc2: new high speed DDR MMC card at address 0001 [ 2.534597] mmcblk0: mmc2:0001 SEM04G 3.68 GiB [ 2.539198] mmcblk0boot0: mmc2:0001 SEM04G partition 1 1.00 MiB [ 2.545166] mmcblk0boot1: mmc2:0001 SEM04G partition 2 1.00 MiB [ 2.555985] mmcblk0: unknown partition table ^^^^^ [ 2.562610] mmcblk0boot1: unknown partition table [ 2.569715] mmcblk0boot0: unknown partition table [ 2.663264] VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2) With the patch reverted, mmcblk0 comes up with partitions 1 and 2 and mmcblk0p2 is mounted. In this log, we fail to find a partition table and panic. Any ideas/suggestions? I'm surprised that we enabled Auto-CMD23 on this hardware; it is a v3 controller, but it has SDHCI_QUIRK_BROKEN_ADMA set.. Philip/Zhangfei, were you able to test this patch on MMP2? Thanks, - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- 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
