1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2017 DENX Software Engineering
4  * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
5  */
6 
7 #include <asm/mach-imx/iomux-v3.h>
8 #include <asm/arch/mx6-pins.h>
9 #include "common.h"
10 
11 iomux_v3_cfg_t const uart_pads[] = {
12 	/* UART4 */
13 	MX6_PAD_CSI0_DAT12__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
14 	MX6_PAD_CSI0_DAT13__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
15 	MX6_PAD_CSI0_DAT16__UART4_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
16 	MX6_PAD_CSI0_DAT17__UART4_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
17 };
18 
19 iomux_v3_cfg_t const uart_console_pads[] = {
20 	/* UART5 */
21 	MX6_PAD_CSI0_DAT14__UART5_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
22 	MX6_PAD_CSI0_DAT15__UART5_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
23 	MX6_PAD_CSI0_DAT18__UART5_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
24 	MX6_PAD_CSI0_DAT19__UART5_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
25 };
26 
27 void displ5_set_iomux_uart_spl(void)
28 {
29 	SETUP_IOMUX_PADS(uart_console_pads);
30 }
31 
32 void displ5_set_iomux_uart(void)
33 {
34 	SETUP_IOMUX_PADS(uart_pads);
35 }
36 
37 #ifdef CONFIG_MXC_SPI
38 iomux_v3_cfg_t const ecspi_pads[] = {
39 	/* SPI3 */
40 	MX6_PAD_DISP0_DAT2__ECSPI3_MISO	| MUX_PAD_CTRL(SPI_PAD_CTRL),
41 	MX6_PAD_DISP0_DAT1__ECSPI3_MOSI	| MUX_PAD_CTRL(SPI_PAD_CTRL),
42 	MX6_PAD_DISP0_DAT0__ECSPI3_SCLK	| MUX_PAD_CTRL(SPI_PAD_CTRL),
43 	MX6_PAD_DISP0_DAT3__ECSPI3_SS0	| MUX_PAD_CTRL(NO_PAD_CTRL),
44 	MX6_PAD_DISP0_DAT4__ECSPI3_SS1	| MUX_PAD_CTRL(NO_PAD_CTRL),
45 	MX6_PAD_DISP0_DAT5__ECSPI3_SS2	| MUX_PAD_CTRL(NO_PAD_CTRL),
46 	MX6_PAD_DISP0_DAT6__ECSPI3_SS3	| MUX_PAD_CTRL(NO_PAD_CTRL),
47 	MX6_PAD_DISP0_DAT7__ECSPI3_RDY	| MUX_PAD_CTRL(NO_PAD_CTRL),
48 };
49 
50 iomux_v3_cfg_t const ecspi2_pads[] = {
51 	/* SPI2, NOR Flash nWP, CS0 */
52 	MX6_PAD_CSI0_DAT10__ECSPI2_MISO	| MUX_PAD_CTRL(SPI_PAD_CTRL),
53 	MX6_PAD_CSI0_DAT9__ECSPI2_MOSI	| MUX_PAD_CTRL(SPI_PAD_CTRL),
54 	MX6_PAD_CSI0_DAT8__ECSPI2_SCLK	| MUX_PAD_CTRL(SPI_PAD_CTRL),
55 	MX6_PAD_CSI0_DAT11__GPIO5_IO29	| MUX_PAD_CTRL(NO_PAD_CTRL),
56 	MX6_PAD_SD3_DAT5__GPIO7_IO00	| MUX_PAD_CTRL(NO_PAD_CTRL),
57 };
58 
59 int board_spi_cs_gpio(unsigned int bus, unsigned int cs)
60 {
61 	if (bus != 1 || cs != (IMX_GPIO_NR(5, 29) << 8))
62 		return -EINVAL;
63 
64 	return IMX_GPIO_NR(5, 29);
65 }
66 
67 void displ5_set_iomux_ecspi_spl(void)
68 {
69 	SETUP_IOMUX_PADS(ecspi2_pads);
70 }
71 
72 void displ5_set_iomux_ecspi(void)
73 {
74 	SETUP_IOMUX_PADS(ecspi_pads);
75 }
76 
77 #else
78 void displ5_set_iomux_ecspi_spl(void) {}
79 void displ5_set_iomux_ecspi(void) {}
80 #endif
81 
82 #ifdef CONFIG_FSL_ESDHC
83 iomux_v3_cfg_t const usdhc4_pads[] = {
84 	MX6_PAD_SD4_CLK__SD4_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
85 	MX6_PAD_SD4_CMD__SD4_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
86 	MX6_PAD_SD4_DAT0__SD4_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
87 	MX6_PAD_SD4_DAT1__SD4_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
88 	MX6_PAD_SD4_DAT2__SD4_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
89 	MX6_PAD_SD4_DAT3__SD4_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
90 	MX6_PAD_SD4_DAT4__SD4_DATA4	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
91 	MX6_PAD_SD4_DAT5__SD4_DATA5	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
92 	MX6_PAD_SD4_DAT6__SD4_DATA6	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
93 	MX6_PAD_SD4_DAT7__SD4_DATA7	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
94 	MX6_PAD_NANDF_ALE__SD4_RESET	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
95 };
96 
97 void displ5_set_iomux_usdhc_spl(void)
98 {
99 	SETUP_IOMUX_PADS(usdhc4_pads);
100 }
101 
102 void displ5_set_iomux_usdhc(void)
103 {
104 	SETUP_IOMUX_PADS(usdhc4_pads);
105 }
106 
107 #else
108 void displ5_set_iomux_usdhc_spl(void) {}
109 void displ5_set_iomux_usdhc(void) {}
110 #endif
111