| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2014 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc. |
| */ |
| |
| #include <arch/io.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; |
| } |