Hi, This series is a better approach to fix the i2c bus hang on A0 version of the Armada XP SoCs. It occurred on the early release of the OpenBlocks AX3-4 boards. Indeed the first variants of Armada XP SoCs (A0 stepping) have issues related to the i2c controller which prevent to use the offload mechanism and lead to a kernel hang during boot. The first patch add a mean to detect the SoCs version at run-time and the second one use this feature in the driver. These 2 patches should be applied on 3.13-rc and on stable kernel 3.12 as it fixes a regression introduce by the commit 930ab3d403ae "i2c: mv64xxx: Add I2C Transaction Generator support". The first patch could be latter be extend to also be used with dove, kirkwood, orion5x and mv78x00 when there will be merged in mvebu. Thanks, Gregory CLEMENT (2): ARM: mvebu: Add support to get the ID and the revision of a SoC i2c: mv64xxx: Fix bus hang on A0 version of the Armada XP SoCs arch/arm/mach-mvebu/Makefile | 2 +- arch/arm/mach-mvebu/mvebu-soc-id.c | 111 +++++++++++++++++++++++++++++++++++++ drivers/i2c/busses/i2c-mv64xxx.c | 11 +++- include/linux/mvebu-soc-id.h | 32 +++++++++++ 4 files changed, 154 insertions(+), 2 deletions(-) create mode 100644 arch/arm/mach-mvebu/mvebu-soc-id.c create mode 100644 include/linux/mvebu-soc-id.h -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
