diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/nvidia/tegra/apbmisc.c | 8 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra/apbmisc.h | 6 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra/gpio.c | 2 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra124/bootblock.c | 6 |
4 files changed, 17 insertions, 5 deletions
diff --git a/src/soc/nvidia/tegra/apbmisc.c b/src/soc/nvidia/tegra/apbmisc.c index fea10b5dbe..5983d546d2 100644 --- a/src/soc/nvidia/tegra/apbmisc.c +++ b/src/soc/nvidia/tegra/apbmisc.c @@ -22,8 +22,14 @@ #include "apbmisc.h" +static struct apbmisc *misc = (struct apbmisc *)TEGRA_APB_MISC_BASE; + void enable_jtag(void) { - struct apbmisc *misc = (struct apbmisc *)TEGRA_APB_MISC_BASE; write32(PP_CONFIG_CTL_JTAG, &misc->pp_config_ctl); } + +void clamp_tristate_inputs(void) +{ + write32(PP_PINMUX_CLAMP_INPUTS, &misc->pp_pinmux_global); +} diff --git a/src/soc/nvidia/tegra/apbmisc.h b/src/soc/nvidia/tegra/apbmisc.h index 805d0bf18b..2f1811a1dd 100644 --- a/src/soc/nvidia/tegra/apbmisc.h +++ b/src/soc/nvidia/tegra/apbmisc.h @@ -25,11 +25,17 @@ struct apbmisc { u32 reserved0[9]; /* ABP_MISC_PP_ offsets 00-20 */ u32 pp_config_ctl; /* _CONFIG_CTL_0, offset 24 */ + u32 reserved1[6]; /* APB_MISC_PP_ offsets 28-3C */ + u32 pp_pinmux_global; /* _PINMUX_GLOBAL_0, offset 40 */ }; #define PP_CONFIG_CTL_TBE (1 << 7) #define PP_CONFIG_CTL_JTAG (1 << 6) +#define PP_PINMUX_CLAMP_INPUTS (1 << 0) + + void enable_jtag(void); +void clamp_tristate_inputs(void); #endif /* __SOC_NVIDIA_TEGRA_APBMISC_H__ */ diff --git a/src/soc/nvidia/tegra/gpio.c b/src/soc/nvidia/tegra/gpio.c index ac0fc3f986..b10cded12d 100644 --- a/src/soc/nvidia/tegra/gpio.c +++ b/src/soc/nvidia/tegra/gpio.c @@ -29,7 +29,7 @@ void __gpio_input(gpio_t gpio, u32 pull) { - u32 pinmux_config = PINMUX_INPUT_ENABLE | PINMUX_TRISTATE | pull; + u32 pinmux_config = PINMUX_INPUT_ENABLE | pull; gpio_set_int_enable(gpio, 0); gpio_set_out_enable(gpio, 0); diff --git a/src/soc/nvidia/tegra124/bootblock.c b/src/soc/nvidia/tegra124/bootblock.c index 6acd5ad4d6..2857a90ace 100644 --- a/src/soc/nvidia/tegra124/bootblock.c +++ b/src/soc/nvidia/tegra124/bootblock.c @@ -31,6 +31,9 @@ void main(void) { void *entry; + // enable pinmux clamp inputs + clamp_tristate_inputs(); + // enable JTAG at the earliest stage enable_jtag(); @@ -40,13 +43,11 @@ void main(void) pinmux_set_config(PINMUX_KB_ROW9_INDEX, PINMUX_KB_ROW9_FUNC_UA3); // Serial in, tristate_on. pinmux_set_config(PINMUX_KB_ROW10_INDEX, PINMUX_KB_ROW10_FUNC_UA3 | - PINMUX_TRISTATE | PINMUX_PULL_UP | PINMUX_INPUT_ENABLE); // Mux some pins away from uart A. pinmux_set_config(PINMUX_UART2_CTS_N_INDEX, PINMUX_UART2_CTS_N_FUNC_UB3 | - PINMUX_TRISTATE | PINMUX_INPUT_ENABLE); pinmux_set_config(PINMUX_UART2_RTS_N_INDEX, PINMUX_UART2_RTS_N_FUNC_UB3); @@ -66,7 +67,6 @@ void main(void) PINMUX_CPU_PWR_REQ_FUNC_CPU); pinmux_set_config(PINMUX_PWR_INT_N_INDEX, PINMUX_PWR_INT_N_FUNC_PMICINTR | - PINMUX_TRISTATE | PINMUX_INPUT_ENABLE); power_enable_cpu_rail(); |