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i2c: ocores: support big-endian register layout

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This allows using OpenCores I2C controller attached to its host in
native-endian mode with bi-endian CPUs. Example of such system is Xtensa
XTFPGA platform.

Acked-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Max Filippov 2015-10-07 02:45:11 +03:00 • committed by Wolfram Sang
parent 8a5e3d472e
commit b299167652
2 changed files with 28 additions and 4 deletions
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1
include/linux/i2c-ocores.h
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@ -15,6 +15,7 @@ struct ocores_i2c_platform_data {
u32 reg_shift; /* register offset shift value */
u32 reg_io_width; /* register io read/write width */
u32 clock_khz; /* input clock in kHz */
bool big_endian; /* registers are big endian */
u8 num_devices; /* number of devices in the devices list */
struct i2c_board_info const *devices; /* devices connected to the bus */
};