| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <assert.h> |
| #include <arch/exception.h> |
| #include <arch/stages.h> |
| #include <bootblock_common.h> |
| #include <console/console.h> |
| #include <program_loading.h> |
| #include <soc/clock.h> |
| #include <soc/nvidia/tegra/apbmisc.h> |
| #include <soc/pinmux.h> |
| #include <soc/power.h> |
| #include <timestamp.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| |
| /* called from assembly in bootblock_asm.S */ |
| void tegra124_main(void); |
| |
| static void run_next_stage(void *entry) |
| { |
| ASSERT(entry); |
| clock_cpu0_config(entry); |
| |
| power_enable_and_ungate_cpu(); |
| |
| /* Repair RAM on cluster0 and cluster1 after CPU is powered on. */ |
| ram_repair(); |
| |
| clock_cpu0_remove_reset(); |
| |
| clock_halt_avp(); |
| } |
| |
| void tegra124_main(void) |
| { |
| // enable pinmux clamp inputs |
| clamp_tristate_inputs(); |
| |
| // enable JTAG at the earliest stage |
| enable_jtag(); |
| |
| clock_early_uart(); |
| |
| // Serial out, tristate off. |
| 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_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_INPUT_ENABLE); |
| pinmux_set_config(PINMUX_UART2_RTS_N_INDEX, |
| PINMUX_UART2_RTS_N_FUNC_UB3); |
| |
| if (CONFIG(BOOTBLOCK_CONSOLE)) { |
| console_init(); |
| exception_init(); |
| } |
| |
| clock_init(); |
| |
| bootblock_mainboard_init(); |
| |
| pinmux_set_config(PINMUX_CORE_PWR_REQ_INDEX, |
| PINMUX_CORE_PWR_REQ_FUNC_PWRON); |
| pinmux_set_config(PINMUX_CPU_PWR_REQ_INDEX, |
| PINMUX_CPU_PWR_REQ_FUNC_CPU); |
| pinmux_set_config(PINMUX_PWR_INT_N_INDEX, |
| PINMUX_PWR_INT_N_FUNC_PMICINTR | |
| PINMUX_INPUT_ENABLE); |
| |
| timestamp_init(0); |
| |
| run_romstage(); |
| } |
| |
| void platform_prog_run(struct prog *prog) |
| { |
| run_next_stage(prog_entry(prog)); |
| } |