From 48ef3ca98d92201c36f50ffb5409c38b02e2e953 Mon Sep 17 00:00:00 2001 From: Thomas Gessler Date: Mon, 13 Oct 2014 18:08:47 +0200 Subject: [PATCH] i2c: xiic: Fix big-endian register access The driver tried to access device registers with the (little-endian) iowrite/ioread functions. While this worked on little-endian machines (e.g. Microblaze with AXI bus), it made the driver unusable on big-endian machines (e.g. PPC405 with PLB). During the probe function, the driver tried to write a 32-bit reset mask into the reset register. This caused an error interrupt on big-endian systems, because the device detected an invalid (byte-swapped) reset mask. The result was an Oops. The patch implements an endianness detection similar to the one used in other Xilinx drivers like drivers/spi/spi-xilinx.c. It was tested on a PPC405/PLB system. Signed-off-by: Thomas Gessler Signed-off-by: Wolfram Sang --- Reading git-format-patch failed