1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Pinmux configuration for CompuLab CL-SOM-AM57x board
4  *
5  * (C) Copyright 2016 CompuLab, Ltd. http://compulab.co.il/
6  *
7  * Author: Dmitry Lifshitz <lifshitz@compulab.co.il>
8  */
9 #include <asm/arch/sys_proto.h>
10 #include <asm/arch/mux_dra7xx.h>
11 
12 /* Serial console */
13 static const struct pad_conf_entry cl_som_am57x_padconf_console[] = {
14 	{UART3_RXD, (M0 | PIN_INPUT_PULLUP | SLEWCONTROL)}, /* UART3_RXD */
15 	{UART3_TXD, (M0 | PIN_INPUT_PULLUP | SLEWCONTROL)}, /* UART3_TXD */
16 };
17 
18 /* PMIC I2C */
19 static const struct pad_conf_entry cl_som_am57x_padconf_pmic[] = {
20 	{MCASP1_ACLKR, (M10 | PIN_INPUT)}, /* MCASP1_ACLKR.I2C4_SDA */
21 	{MCASP1_FSR,   (M10 | PIN_INPUT)}, /* MCASP1_FSR.I2C4_SCL */
22 };
23 
24 /* Green GPIO led */
25 static const struct pad_conf_entry cl_som_am57x_padconf_green_led[] = {
26 	{GPMC_A15, (M14 | PIN_OUTPUT_PULLDOWN)}, /* GPMC_A15.GPIO2_5 */
27 };
28 
29 /* MMC/SD Card */
30 static const struct pad_conf_entry cl_som_am57x_padconf_sd_card[] = {
31 	{MMC1_CLK,  (M0  | PIN_INPUT_PULLUP)}, /* MMC1_CLK */
32 	{MMC1_CMD,  (M0  | PIN_INPUT_PULLUP)}, /* MMC1_CMD */
33 	{MMC1_DAT0, (M0  | PIN_INPUT_PULLUP)}, /* MMC1_DAT0 */
34 	{MMC1_DAT1, (M0  | PIN_INPUT_PULLUP)}, /* MMC1_DAT1 */
35 	{MMC1_DAT2, (M0  | PIN_INPUT_PULLUP)}, /* MMC1_DAT2 */
36 	{MMC1_DAT3, (M0  | PIN_INPUT_PULLUP)}, /* MMC1_DAT3 */
37 	{MMC1_SDCD, (M14 | PIN_INPUT)       }, /* MMC1_SDCD */
38 	{MMC1_SDWP, (M14 | PIN_INPUT)       }, /* MMC1_SDWP */
39 };
40 
41 /* WiFi - must be in the safe mode on boot */
42 static const struct pad_conf_entry cl_som_am57x_padconf_wifi[] = {
43 	{UART1_CTSN, (M15 | PIN_INPUT_PULLDOWN)}, /* UART1_CTSN */
44 	{UART1_RTSN, (M15 | PIN_INPUT_PULLDOWN)}, /* UART1_RTSN */
45 	{UART2_RXD,  (M15 | PIN_INPUT_PULLDOWN)}, /* UART2_RXD */
46 	{UART2_TXD,  (M15 | PIN_INPUT_PULLDOWN)}, /* UART2_TXD */
47 	{UART2_CTSN, (M15 | PIN_INPUT_PULLDOWN)}, /* UART2_CTSN */
48 	{UART2_RTSN, (M15 | PIN_INPUT_PULLDOWN)}, /* UART2_RTSN */
49 };
50 
51 /* QSPI */
52 static const struct pad_conf_entry cl_som_am57x_padconf_qspi[] = {
53 	{GPMC_A13, (M1 | PIN_INPUT)       }, /* GPMC_A13.QSPI1_RTCLK */
54 	{GPMC_A18, (M1 | PIN_INPUT)       }, /* GPMC_A18.QSPI1_SCLK */
55 	{GPMC_A16, (M1 | PIN_INPUT)       }, /* GPMC_A16.QSPI1_D0 */
56 	{GPMC_A17, (M1 | PIN_INPUT)       }, /* GPMC_A17.QSPI1_D1 */
57 	{GPMC_CS2, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_CS2.QSPI1_CS0 */
58 };
59 
60 /* GPIO Expander I2C */
61 static const struct pad_conf_entry cl_som_am57x_padconf_i2c_gpio[] = {
62 	{MCASP1_AXR0, (M10 | PIN_INPUT)}, /* MCASP1_AXR0.I2C5_SDA */
63 	{MCASP1_AXR1, (M10 | PIN_INPUT)}, /* MCASP1_AXR1.I2C5_SCL */
64 };
65 
66 /* eMMC internal storage */
67 static const struct pad_conf_entry cl_som_am57x_padconf_emmc[] = {
68 	{GPMC_A19, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A19.MMC2_DAT4 */
69 	{GPMC_A20, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A20.MMC2_DAT5 */
70 	{GPMC_A21, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A21.MMC2_DAT6 */
71 	{GPMC_A22, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A22.MMC2_DAT7 */
72 	{GPMC_A23, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A23.MMC2_CLK */
73 	{GPMC_A24, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A24.MMC2_DAT0 */
74 	{GPMC_A25, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A25.MMC2_DAT1 */
75 	{GPMC_A26, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A26.MMC2_DAT2 */
76 	{GPMC_A27, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_A27.MMC2_DAT3 */
77 	{GPMC_CS1, (M1 | PIN_INPUT_PULLUP)}, /* GPMC_CS1.MMC2_CMD */
78 };
79 
80 /* usb1_drvvbus */
81 static const struct pad_conf_entry cl_som_am57x_padconf_usb[] = {
82 	/* USB1_DRVVBUS.USB1_DRVVBUS */
83 	{USB1_DRVVBUS, (M0 | PIN_OUTPUT_PULLDOWN | SLEWCONTROL) },
84 };
85 
86 /* Ethernet */
87 static const struct pad_conf_entry cl_som_am57x_padconf_ethernet[] = {
88 	/* MDIO bus */
89 	{VIN2A_D10,  (M3  | PIN_OUTPUT_PULLUP) }, /* VIN2A_D10.MDIO_MCLK  */
90 	{VIN2A_D11,  (M3  | PIN_INPUT_PULLUP)  }, /* VIN2A_D11.MDIO_D  */
91 	/* EMAC Slave 1 at addr 0x1 - Default interface */
92 	{VIN2A_D12,  (M3  | PIN_OUTPUT)         }, /* VIN2A_D12.RGMII1_TXC */
93 	{VIN2A_D13,  (M3  | PIN_OUTPUT)         }, /* VIN2A_D13.RGMII1_TXCTL */
94 	{VIN2A_D14,  (M3  | PIN_OUTPUT)         }, /* VIN2A_D14.RGMII1_TXD3 */
95 	{VIN2A_D15,  (M3  | PIN_OUTPUT)         }, /* VIN2A_D15.RGMII1_TXD2 */
96 	{VIN2A_D16,  (M3  | PIN_OUTPUT)         }, /* VIN2A_D16.RGMII1_TXD1 */
97 	{VIN2A_D17,  (M3  | PIN_OUTPUT)         }, /* VIN2A_D17.RGMII1_TXD0 */
98 	{VIN2A_D18,  (M3  | PIN_INPUT_PULLDOWN) }, /* VIN2A_D18.RGMII1_RXC */
99 	{VIN2A_D19,  (M3  | PIN_INPUT_PULLDOWN) }, /* VIN2A_D19.RGMII1_RXCTL */
100 	{VIN2A_D20,  (M3  | PIN_INPUT_PULLDOWN) }, /* VIN2A_D20.RGMII1_RXD3 */
101 	{VIN2A_D21,  (M3  | PIN_INPUT_PULLDOWN) }, /* VIN2A_D21.RGMII1_RXD2 */
102 	{VIN2A_D22,  (M3  | PIN_INPUT_PULLDOWN) }, /* VIN2A_D22.RGMII1_RXD1 */
103 	{VIN2A_D23,  (M3  | PIN_INPUT_PULLDOWN) }, /* VIN2A_D23.RGMII1_RXD0 */
104 	/* Eth PHY1 reset GPIOs*/
105 	{VIN2A_CLK0, (M14 | PIN_OUTPUT_PULLDOWN)}, /* VIN2A_CLK0.GPIO3_28 */
106 };
107 
108 #define SET_MUX(mux_array) do_set_mux32((*ctrl)->control_padconf_core_base, \
109 					mux_array, ARRAY_SIZE(mux_array))
110 
set_muxconf_regs(void)111 void set_muxconf_regs(void)
112 {
113 	SET_MUX(cl_som_am57x_padconf_console);
114 	SET_MUX(cl_som_am57x_padconf_pmic);
115 	SET_MUX(cl_som_am57x_padconf_green_led);
116 	SET_MUX(cl_som_am57x_padconf_sd_card);
117 	SET_MUX(cl_som_am57x_padconf_wifi);
118 	SET_MUX(cl_som_am57x_padconf_qspi);
119 	SET_MUX(cl_som_am57x_padconf_i2c_gpio);
120 	SET_MUX(cl_som_am57x_padconf_emmc);
121 	SET_MUX(cl_som_am57x_padconf_usb);
122 	SET_MUX(cl_som_am57x_padconf_ethernet);
123 }
124