Nightly testing has revealed that both the OMAP3430 LDP and the OMAP4430 SDP fail to boot due to lack of working MMC. Both platforms fail to find their rootfs, which is on a SD card. The breakage occurred somewhere between trees of September 9th (commit 4e4adb2f4628) and September 12th (commit b0a1ea51bda4), so during the merge window. Diffing those two trees show no changes to OMAP platform code, but substantial changes in the MMC code: drivers/mmc/card/block.c | 17 + drivers/mmc/core/core.c | 46 +- drivers/mmc/core/host.c | 42 +- drivers/mmc/host/Kconfig | 8 + drivers/mmc/host/Makefile | 1 + drivers/mmc/host/android-goldfish.c | 2 +- drivers/mmc/host/atmel-mci.c | 1 - drivers/mmc/host/dw_mmc-rockchip.c | 3 + drivers/mmc/host/dw_mmc.c | 284 +- drivers/mmc/host/omap.c | 9 +- drivers/mmc/host/omap_hsmmc.c | 347 +- drivers/mmc/host/pxamci.c | 200 +- drivers/mmc/host/sdhci-esdhc-imx.c | 114 +- drivers/mmc/host/sdhci-esdhc.h | 3 +- drivers/mmc/host/sdhci-msm.c | 5 + drivers/mmc/host/sdhci-of-arasan.c | 4 + drivers/mmc/host/sdhci-of-at91.c | 191 + drivers/mmc/host/sdhci-of-esdhc.c | 6 + drivers/mmc/host/sdhci-pci.c | 1 + drivers/mmc/host/sdhci-sirf.c | 4 +- drivers/mmc/host/sdhci.c | 123 +- drivers/mmc/host/sdhci.h | 10 +- drivers/mmc/host/sh_mmcif.c | 2 + drivers/mmc/host/sunxi-mmc.c | 2 +- drivers/mmc/host/tmio_mmc_pio.c | 6 +- drivers/mmc/host/usdhi6rol0.c | 15 +- So this probably results from the MMC update during the merge window: 85579ad7f1df Merge tag 'mmc-v4.3' of git://git.linaro.org/people/ulf.hansson/mmc The OMAP4430 reports this during it's boot log: mmc0: new high speed MMC card at address 0001 mmcblk0: mmc0:0001 SEM08G 7.39 GiB mmcblk0boot0: mmc0:0001 SEM08G partition 1 1.00 MiB mmcblk0boot1: mmc0:0001 SEM08G partition 2 1.00 MiB ... VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2): error -6 b300 7757824 mmcblk0 driver: mmcblk b310 1024 mmcblk0boot1 (driver?) b308 1024 mmcblk0boot0 (driver?) Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2) whereas previous kernels reported: mmc0: host does not support reading read-only switch, assuming write-enable mmc0: new high speed SD card at address 0002 mmcblk0: mmc0:0002 00000 971 MiB mmcblk0: p1 p2 Waiting 2 sec before mounting root device... mmc1: new high speed MMC card at address 0001 mmcblk1: mmc1:0001 SEM08G 7.39 GiB mmcblk1boot0: mmc1:0001 SEM08G partition 1 1.00 MiB mmcblk1boot1: mmc1:0001 SEM08G partition 2 1.00 MiB ... VFS: Mounted root (ext3 filesystem) on device 179:2. OMAP3430 only reports: VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0): error -6 where previous kernels reported: mmc0: host does not support reading read-only switch, assuming write-enable mmc0: new high speed SD card at address 0002 mmcblk0: mmc0:0002 00000 971 MiB mmcblk0: p1 p2 ... VFS: Mounted root (ext2 filesystem) on device 179:2. -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- 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
