1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2018 NXP
4 */
5
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/arch/iomux.h>
9 #include <asm/arch/sci/sci.h>
10
11 DECLARE_GLOBAL_DATA_PTR;
12
13 /*
14 * configures a single pad in the iomuxer
15 */
imx8_iomux_setup_pad(iomux_cfg_t pad)16 void imx8_iomux_setup_pad(iomux_cfg_t pad)
17 {
18 sc_pad_t pin_id = pad & PIN_ID_MASK;
19 int ret;
20
21 u32 val = (u32)((pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT);
22
23 val |= PADRING_IFMUX_EN_MASK;
24 val |= PADRING_GP_EN_MASK;
25
26 ret = sc_pad_set(-1, pin_id, val);
27 if (ret)
28 printf("sc_pad_set failed!, pin: %u, val: 0x%x\n", pin_id, val);
29
30 debug("iomux: pin %d, val = 0x%x\n", pin_id, val);
31 }
32
33 /* configures a list of pads within declared with IOMUX_PADS macro */
imx8_iomux_setup_multiple_pads(iomux_cfg_t const * pad_list,u32 count)34 void imx8_iomux_setup_multiple_pads(iomux_cfg_t const *pad_list, u32 count)
35 {
36 iomux_cfg_t const *p = pad_list;
37 int i;
38
39 for (i = 0; i < count; i++) {
40 imx8_iomux_setup_pad(*p);
41 p++;
42 }
43 }
44