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| author | Stephen Warren <swarren@nvidia.com> | 2014-04-22 14:37:54 -0600 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2014-05-13 10:41:31 -0700 |
| commit | bb14469ae088682859411e45573d01ed11373960 (patch) | |
| tree | fe8e32d6d1980309df19f0450fd099a59a4973aa /arch/arm/include | |
| parent | eceb3f26f407d65dae3902180b3c9f3128f0f349 (diff) | |
| download | u-boot-imx-bb14469ae088682859411e45573d01ed11373960.zip u-boot-imx-bb14469ae088682859411e45573d01ed11373960.tar.gz u-boot-imx-bb14469ae088682859411e45573d01ed11373960.tar.bz2 | |
ARM: tegra: add function to enable input clamping on tristate
The HW-defined procedure for booting Tegra requires that
CLAMP_INPUTS_WHEN_TRISTATED be enabled before programming the pinmux.
Add a function to the pinmux driver to allow boards to do this.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra/pinmux.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra/pinmux.h b/arch/arm/include/asm/arch-tegra/pinmux.h index 035159d..da47769 100644 --- a/arch/arm/include/asm/arch-tegra/pinmux.h +++ b/arch/arm/include/asm/arch-tegra/pinmux.h @@ -80,6 +80,11 @@ struct pmux_pingrp_config { #endif }; +#if !defined(CONFIG_TEGRA20) && !defined(CONFIG_TEGRA30) +/* Set the pinmux CLAMP_INPUTS_WHEN_TRISTATED bit */ +void pinmux_set_tristate_input_clamping(void); +#endif + /* Set the mux function for a pin group */ void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func); |