diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2014-07-31 14:54:12 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-03-24 15:27:40 +0100 |
| commit | 401b3b6ea66731c3d665659d869ed06008db19e6 (patch) | |
| tree | 4829aa08420e52d0956e1e10531324f054d1c9f7 /src/soc/nvidia/tegra132/include | |
| parent | aee84263363e4fdc2b7e4762f0b4c7c68a48bea1 (diff) | |
tegra132: provide pad configuration interface
Instead of sprinkling the pad configuration and pinmux
selection throughout the code allow for a data-driven
initialization sequence. Most of the calls in the
original pinmux functions require 12 bytes per pad
plus the support code. This implementation allows for
4 bytes per pad in addition to the support code.
BUG=chrome-os-partner:29981
TEST=Built and booted into depthcharge on rush.
Change-Id: I22c243a5f9891a97e14b78d8c8064e36adaf50b8
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 9329c17bbadcaab803b38842e38e1704d262817d
Original-Change-Id: I3a119b4068e880b74a0a1597f143d7c4e108a6c1
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/210833
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/8875
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/nvidia/tegra132/include')
| -rw-r--r-- | src/soc/nvidia/tegra132/include/soc/padconfig.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra132/include/soc/padconfig.h b/src/soc/nvidia/tegra132/include/soc/padconfig.h new file mode 100644 index 0000000000..f7cf629ce2 --- /dev/null +++ b/src/soc/nvidia/tegra132/include/soc/padconfig.h @@ -0,0 +1,89 @@ +/* + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_NVIDIA_TEGRA132_PAD_CFG_H +#define __SOC_NVIDIA_TEGRA132_PAD_CFG_H + +#include <stdint.h> +#include <soc/nvidia/tegra132/pinmux.h> + +struct pad_config { + uint8_t pinmux_flags; /* PU/PU, OD, INPUT, SFIO, etc */ + uint8_t gpio_index; /* bank, port, index */ + uint16_t pinmux_index:9; + uint16_t unused:1; + uint16_t sfio:1; + uint16_t gpio_out0:1; + uint16_t gpio_out1:1; + uint16_t pad_has_gpio:1; + uint16_t por_pullup:1; +}; + +#define PAD_CFG_GPIO_INPUT(ball_, pinmux_flgs_) \ + { \ + .pinmux_flags = pinmux_flgs_, \ + .gpio_index = PAD_TO_GPIO_##ball_, \ + .pinmux_index = PINMUX_##ball_##_INDEX, \ + .sfio = 0, \ + .pad_has_gpio = PAD_HAS_GPIO_##ball_, \ + } + +#define PAD_CFG_GPIO_OUT0(ball_, pinmux_flgs_) \ + { \ + .pinmux_flags = pinmux_flgs_, \ + .gpio_index = PAD_TO_GPIO_##ball_, \ + .pinmux_index = PINMUX_##ball_##_INDEX, \ + .sfio = 0, \ + .gpio_out0 = 1, \ + .pad_has_gpio = PAD_HAS_GPIO_##ball_, \ + } + +#define PAD_CFG_GPIO_OUT1(ball_, pinmux_flgs_) \ + { \ + .pinmux_flags = pinmux_flgs_, \ + .gpio_index = PAD_TO_GPIO_##ball_, \ + .pinmux_index = PINMUX_##ball_##_INDEX, \ + .sfio = 0, \ + .gpio_out1 = 1, \ + .pad_has_gpio = PAD_HAS_GPIO_##ball_, \ + } + +#define PAD_CFG_SFIO(ball_, pinmux_flgs_, sfio_) \ + { \ + .pinmux_flags = pinmux_flgs_ | \ + PINMUX_##ball_##_FUNC_##sfio_, \ + .gpio_index = PAD_TO_GPIO_##ball_, \ + .pinmux_index = PINMUX_##ball_##_INDEX, \ + .sfio = 1, \ + .pad_has_gpio = PAD_HAS_GPIO_##ball_, \ + } + +#define PAD_CFG_UNUSED(ball_) \ + { \ + .gpio_index = PAD_TO_GPIO_##ball_, \ + .pinmux_index = PINMUX_##ball_##_INDEX, \ + .unused = 1, \ + .pad_has_gpio = PAD_HAS_GPIO_##ball_, \ + } +/* + * Configure the pads associated with entry according to the configuration. + */ +void soc_configure_pads(const struct pad_config * const entries, size_t num); + +#endif /* __SOC_NVIDIA_TEGRA132_PAD_CFG_H */ |