diff options
Diffstat (limited to 'src/soc/marvell/mvmap2315/pinmux.c')
| -rw-r--r-- | src/soc/marvell/mvmap2315/pinmux.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/soc/marvell/mvmap2315/pinmux.c b/src/soc/marvell/mvmap2315/pinmux.c new file mode 100644 index 0000000000..159d62e175 --- /dev/null +++ b/src/soc/marvell/mvmap2315/pinmux.c @@ -0,0 +1,64 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Marvell, 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. + */ + +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> + +#include <arch/io.h> +#include <soc/pinmux.h> + +void set_pinmux(struct mvmap2315_pinmux pinmux) +{ + u32 pad_num; + u32 reg = 0; + + /* pads < 160 are part of the MCU domain and not handled here + * and pads > 231 don't exist + */ + if (pinmux.pad < 160 || pinmux.pad > 231) + return; + + pad_num = pinmux.pad - 160; + + reg |= (pinmux.fun_sel << + MVMAP2315_PADWRAP_FUNC_SEL_SHIFT) & + MVMAP2315_PADWRAP_FUNC_SEL; + + reg |= (pinmux.raw_sel << + MVMAP2315_PADWRAP_RAW_SEL_SHIFT) & + MVMAP2315_PADWRAP_RAW_SEL; + + reg |= (pinmux.dgtb_sel << + MVMAP2315_PADWRAP_DGTB_SEL_SHIFT) & + MVMAP2315_PADWRAP_DGTB_SEL; + + reg |= (pinmux.slew << + MVMAP2315_PADWRAP_SLEW_SHIFT) & + MVMAP2315_PADWRAP_SLEW; + + if (!pinmux.pull_sel) { + reg &= ~MVMAP2315_PADWRAP_PD_EN; + reg &= ~MVMAP2315_PADWRAP_PU_EN; + } else if (pinmux.pull_sel == 1) { + reg |= MVMAP2315_PADWRAP_PD_EN; + reg &= ~MVMAP2315_PADWRAP_PU_EN; + } else if (pinmux.pull_sel == 2) { + reg &= ~MVMAP2315_PADWRAP_PD_EN; + reg |= MVMAP2315_PADWRAP_PU_EN; + } + + write32(&mvmap2315_pinmux->io_pad_piocfg[pad_num], reg); +} |