diff options
| -rw-r--r-- | arch/arm/cpu/tegra-common/pinmux-common.c | 16 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra/pinmux.h | 5 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/cpu/tegra-common/pinmux-common.c b/arch/arm/cpu/tegra-common/pinmux-common.c index 6d7a7d9..6e3ab0c 100644 --- a/arch/arm/cpu/tegra-common/pinmux-common.c +++ b/arch/arm/cpu/tegra-common/pinmux-common.c @@ -86,6 +86,22 @@ #define IO_RESET_SHIFT 8 #define RCV_SEL_SHIFT 9 +#if !defined(CONFIG_TEGRA20) && !defined(CONFIG_TEGRA30) +/* This register/field only exists on Tegra114 and later */ +#define APB_MISC_PP_PINMUX_GLOBAL_0 0x40 +#define CLAMP_INPUTS_WHEN_TRISTATED 1 + +void pinmux_set_tristate_input_clamping(void) +{ + u32 *reg = _R(APB_MISC_PP_PINMUX_GLOBAL_0); + u32 val; + + val = readl(reg); + val |= CLAMP_INPUTS_WHEN_TRISTATED; + writel(val, reg); +} +#endif + void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func) { u32 *reg = MUX_REG(pin); 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); |