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| author | Marek Vasut <marex@denx.de> | 2012-11-30 18:17:07 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-12-11 13:17:30 -0700 |
| commit | fa5e2845a867a3715240ff221aaec2825b5c73df (patch) | |
| tree | 84fb219f6965ce523fd429324785c3c60c142d72 /arch/arm/include | |
| parent | 1e2fc0d19bac9bf4f62d259169e902e700a18bad (diff) | |
| download | u-boot-imx-fa5e2845a867a3715240ff221aaec2825b5c73df.zip u-boot-imx-fa5e2845a867a3715240ff221aaec2825b5c73df.tar.gz u-boot-imx-fa5e2845a867a3715240ff221aaec2825b5c73df.tar.bz2 | |
mxs: i2c: Implement algorithm to set up arbitrary i2c speed
This algorithm computes the values of TIMING{0,1,2} registers for the
MX28 I2C block. This algorithm was derived by using a scope, but the
result seems correct.
The resulting values programmed into the registers do not correlate
with the contents in datasheet. When using the values from the datasheet,
the I2C clock were completely wrong.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-mxs/clock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mxs/clock.h b/arch/arm/include/asm/arch-mxs/clock.h index 1700fe3..3d39ef2 100644 --- a/arch/arm/include/asm/arch-mxs/clock.h +++ b/arch/arm/include/asm/arch-mxs/clock.h @@ -35,6 +35,7 @@ enum mxc_clock { MXC_SSP1_CLK, MXC_SSP2_CLK, MXC_SSP3_CLK, + MXC_XTAL_CLK, }; enum mxs_ioclock { |