u-boot/arch/arm/cpu/tegra114-common/funcmux.c
Stephen Warren 1fa3a63413 ARM: tegra: Tegra114 pinmux cleanup
This renames all the pinmux pins, drive groups, and functions so they
have a prefix which matches the type name. These lists are also auto-
generated using scripts that were also used to generate the kernel
pinctrl drivers. This ensures that the lists are consistent between the
two.

The entries in tegra114_pingroups[] are all updated to remove the columns
which are no longer used.

All affected code is updated to match.

This introduces a few changes to pin/group/function naming and the set of
available functions for each pin. The new values now exactly match the
TRM; the chip documentation. I adjusted a few entries in
pinmux-config-dalmore.h due to this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:06 -07:00

67 lines
2 KiB
C

/*
* Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
/* Tegra114 high-level function multiplexing */
#include <common.h>
#include <asm/arch/clock.h>
#include <asm/arch/funcmux.h>
#include <asm/arch/pinmux.h>
int funcmux_select(enum periph_id id, int config)
{
int bad_config = config != FUNCMUX_DEFAULT;
switch (id) {
case PERIPH_ID_UART4:
switch (config) {
case FUNCMUX_UART4_GMI:
pinmux_set_func(PMUX_PINGRP_GMI_A16_PJ7,
PMUX_FUNC_UARTD);
pinmux_set_func(PMUX_PINGRP_GMI_A17_PB0,
PMUX_FUNC_UARTD);
pinmux_set_func(PMUX_PINGRP_GMI_A18_PB1,
PMUX_FUNC_UARTD);
pinmux_set_func(PMUX_PINGRP_GMI_A19_PK7,
PMUX_FUNC_UARTD);
pinmux_set_io(PMUX_PINGRP_GMI_A16_PJ7, PMUX_PIN_OUTPUT);
pinmux_set_io(PMUX_PINGRP_GMI_A17_PB0, PMUX_PIN_INPUT);
pinmux_set_io(PMUX_PINGRP_GMI_A18_PB1, PMUX_PIN_INPUT);
pinmux_set_io(PMUX_PINGRP_GMI_A19_PK7, PMUX_PIN_OUTPUT);
pinmux_tristate_disable(PMUX_PINGRP_GMI_A16_PJ7);
pinmux_tristate_disable(PMUX_PINGRP_GMI_A17_PB0);
pinmux_tristate_disable(PMUX_PINGRP_GMI_A18_PB1);
pinmux_tristate_disable(PMUX_PINGRP_GMI_A19_PK7);
break;
}
break;
/* Add other periph IDs here as needed */
default:
debug("%s: invalid periph_id %d", __func__, id);
return -1;
}
if (bad_config) {
debug("%s: invalid config %d for periph_id %d", __func__,
config, id);
return -1;
}
return 0;
}