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https://github.com/AsahiLinux/u-boot
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abeebc19db
Add iomux configuration api. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Anatolij Gustschin <agust@denx.de> Cc: Stefano Babic <sbabic@denx.de>
43 lines
894 B
C
43 lines
894 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2018 NXP
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/sci/sci.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* configures a single pad in the iomuxer
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*/
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void imx8_iomux_setup_pad(iomux_cfg_t pad)
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{
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sc_pad_t pin_id = pad & PIN_ID_MASK;
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int ret;
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u32 val = (u32)((pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT);
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val |= PADRING_IFMUX_EN_MASK;
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val |= PADRING_GP_EN_MASK;
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ret = sc_pad_set(-1, pin_id, val);
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if (ret)
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printf("sc_pad_set failed!, pin: %u, val: 0x%x\n", pin_id, val);
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debug("iomux: pin %d, val = 0x%x\n", pin_id, val);
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}
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/* configures a list of pads within declared with IOMUX_PADS macro */
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void imx8_iomux_setup_multiple_pads(iomux_cfg_t const *pad_list, u32 count)
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{
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iomux_cfg_t const *p = pad_list;
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int i;
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for (i = 0; i < count; i++) {
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imx8_iomux_setup_pad(*p);
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p++;
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}
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}
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