/* return 1 if a pmux_func is in range */
#define pmux_func_isvalid(func) \
- ((((func) >= 0) && ((func) < PMUX_FUNC_COUNT)) || \
- (((func) >= PMUX_FUNC_RSVD1) && ((func) <= PMUX_FUNC_RSVD4)))
+ (((func) >= 0) && ((func) < PMUX_FUNC_COUNT))
/* return 1 if a pin_pupd_is in range */
#define pmux_pin_pupd_isvalid(pupd) \
#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);
int i, mux = -1;
u32 val;
+ if (func == PMUX_FUNC_DEFAULT)
+ return;
+
/* Error check on pin and func */
assert(pmux_pingrp_isvalid(pin));
assert(pmux_func_isvalid(func));
- if (func & PMUX_FUNC_RSVD1) {
- mux = func & 3;
+ if (func >= PMUX_FUNC_RSVD1) {
+ mux = (func - PMUX_FUNC_RSVD1) & 3;
} else {
/* Search for the appropriate function */
for (i = 0; i < 4; i++) {