| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <device/mmio.h> |
| #include <soc/addressmap.h> |
| |
| #include "apbmisc.h" |
| |
| static struct apbmisc *misc = (struct apbmisc *)TEGRA_APB_MISC_BASE; |
| |
| void enable_jtag(void) |
| { |
| write32(&misc->pp_config_ctl, PP_CONFIG_CTL_JTAG); |
| } |
| |
| void clamp_tristate_inputs(void) |
| { |
| write32(&misc->pp_pinmux_global, PP_PINMUX_CLAMP_INPUTS); |
| } |
| |
| void tegra_revision_info(struct tegra_revision *id) |
| { |
| uintptr_t gp_hidrev= (uintptr_t)TEGRA_APB_MISC_BASE + MISC_GP_HIDREV; |
| uint32_t reg; |
| |
| reg = read32((void *)(gp_hidrev)); |
| |
| id->hid_fam = (reg >> 0) & 0x0f; |
| id->chip_id = (reg >> 8) & 0xff; |
| id->major = (reg >> 4) & 0x0f; |
| id->minor = (reg >> 16) & 0x07; |
| } |