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author | Tom Warren <twarren.nvidia@gmail.com> | 2012-12-11 13:34:15 +0000 |
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committer | Tom Warren <twarren@nvidia.com> | 2013-01-16 13:40:07 -0700 |
commit | b2871037d2c4c5f55b8de8ac593babbdab6624cb (patch) | |
tree | 6a2d7ea87099d3fd4380a30999d53fc3f79936dd /arch/arm/cpu/tegra30-common/funcmux.c | |
parent | 5576aab5173e81462b852c35fe8d1c03c310afc2 (diff) | |
download | u-boot-imx-b2871037d2c4c5f55b8de8ac593babbdab6624cb.zip u-boot-imx-b2871037d2c4c5f55b8de8ac593babbdab6624cb.tar.gz u-boot-imx-b2871037d2c4c5f55b8de8ac593babbdab6624cb.tar.bz2 |
Tegra30: Add common CPU (shared) files
These files are used by both SPL and main U-Boot.
Also made minor changes to shared Tegra code to support
T30 differences.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/cpu/tegra30-common/funcmux.c')
-rw-r--r-- | arch/arm/cpu/tegra30-common/funcmux.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/cpu/tegra30-common/funcmux.c b/arch/arm/cpu/tegra30-common/funcmux.c new file mode 100644 index 0000000..e24c57e --- /dev/null +++ b/arch/arm/cpu/tegra30-common/funcmux.c @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2010-2012, 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/>. + */ + +/* Tegra30 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_UART1: + switch (config) { + case FUNCMUX_UART1_ULPI: + pinmux_set_func(PINGRP_ULPI_DATA0, PMUX_FUNC_UARTA); + pinmux_set_func(PINGRP_ULPI_DATA1, PMUX_FUNC_UARTA); + pinmux_set_func(PINGRP_ULPI_DATA2, PMUX_FUNC_UARTA); + pinmux_set_func(PINGRP_ULPI_DATA3, PMUX_FUNC_UARTA); + pinmux_tristate_disable(PINGRP_ULPI_DATA0); + pinmux_tristate_disable(PINGRP_ULPI_DATA1); + pinmux_tristate_disable(PINGRP_ULPI_DATA2); + pinmux_tristate_disable(PINGRP_ULPI_DATA3); + 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; +} |