The current implementation of get_timer() is only really useful after we
have relocated u-boot to memory. The i2c code is used before that as part
of the SPD DDR setup.
We actually have a bug when using the get_timer() code before relocation
because the .bss hasn't been setup and thus we could be reading/writing
a random location (probably in flash).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Prevent i2c_init() in fsl_i2c.c from writing to the data segment before
relocation. Commit d8c82db4 added the ability for i2c_init() to program the
I2C bus speed and save the value in i2c_bus_speed[], which is a global
variable. It is an error to write to the data segment before relocation,
which is what i2c_init() does when it stores the bus speed in i2c_bus_speed[].
Signed-off-by: Timur Tabi <timur@freescale.com>
Add support to the Freescale I2C driver (fsl_i2c.c) for setting and querying
the I2C bus speed. Current 8[356]xx boards define the CFG_I2C_SPEED macro,
but fsl_i2c.c ignores it and uses conservative value when programming the
I2C bus speed.
Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Kumar Gala
Timur Tabi
Jean-Christophe PLAGNIOL-VILLARD