xref: /openbmc/u-boot/board/freescale/mx28evk/iomux.c (revision bfacf466) 
1 /*
2  * Freescale MX28EVK IOMUX setup
3  *
4  * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
5  * on behalf of DENX Software Engineering GmbH
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; either version 2 of
13  * the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  */
20 
21 #include <common.h>
22 #include <config.h>
23 #include <asm/io.h>
24 #include <asm/arch/iomux-mx28.h>
25 #include <asm/arch/imx-regs.h>
26 #include <asm/arch/sys_proto.h>
27 
28 #define	MUX_CONFIG_SSP0	(MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
29 #define	MUX_CONFIG_ENET	(MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
30 #define	MUX_CONFIG_EMI	(MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL)
31 
32 const iomux_cfg_t iomux_setup[] = {
33 	/* DUART */
34 	MX28_PAD_PWM0__DUART_RX,
35 	MX28_PAD_PWM1__DUART_TX,
36 
37 	/* MMC0 */
38 	MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0,
39 	MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0,
40 	MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0,
41 	MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0,
42 	MX28_PAD_SSP0_DATA4__SSP0_D4 | MUX_CONFIG_SSP0,
43 	MX28_PAD_SSP0_DATA5__SSP0_D5 | MUX_CONFIG_SSP0,
44 	MX28_PAD_SSP0_DATA6__SSP0_D6 | MUX_CONFIG_SSP0,
45 	MX28_PAD_SSP0_DATA7__SSP0_D7 | MUX_CONFIG_SSP0,
46 	MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0,
47 	MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |
48 		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
49 	MX28_PAD_SSP0_SCK__SSP0_SCK |
50 		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
51 	/* write protect */
52 	MX28_PAD_SSP1_SCK__GPIO_2_12,
53 	/* MMC0 slot power enable */
54 	MX28_PAD_PWM3__GPIO_3_28 |
55 		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
56 
57 	/* FEC0 */
58 	MX28_PAD_ENET0_MDC__ENET0_MDC | MUX_CONFIG_ENET,
59 	MX28_PAD_ENET0_MDIO__ENET0_MDIO | MUX_CONFIG_ENET,
60 	MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MUX_CONFIG_ENET,
61 	MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MUX_CONFIG_ENET,
62 	MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MUX_CONFIG_ENET,
63 	MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MUX_CONFIG_ENET,
64 	MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MUX_CONFIG_ENET,
65 	MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MUX_CONFIG_ENET,
66 	MX28_PAD_ENET_CLK__CLKCTRL_ENET | MUX_CONFIG_ENET,
67 	/* FEC0 Enable */
68 	MX28_PAD_SSP1_DATA3__GPIO_2_15 |
69 		(MXS_PAD_12MA | MXS_PAD_3V3),
70 	/* FEC0 Reset */
71 	MX28_PAD_ENET0_RX_CLK__GPIO_4_13 |
72 		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
73 
74 	/* FEC1 */
75 	MX28_PAD_ENET0_COL__ENET1_TX_EN | MUX_CONFIG_ENET,
76 	MX28_PAD_ENET0_CRS__ENET1_RX_EN | MUX_CONFIG_ENET,
77 	MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MUX_CONFIG_ENET,
78 	MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MUX_CONFIG_ENET,
79 	MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MUX_CONFIG_ENET,
80 	MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MUX_CONFIG_ENET,
81 
82 	/* EMI */
83 	MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI,
84 	MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI,
85 	MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI,
86 	MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI,
87 	MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI,
88 	MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI,
89 	MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI,
90 	MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI,
91 	MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI,
92 	MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI,
93 	MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI,
94 	MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI,
95 	MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI,
96 	MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI,
97 	MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI,
98 	MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI,
99 	MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI,
100 	MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
101 	MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI,
102 	MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
103 	MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI,
104 	MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
105 	MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
106 	MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
107 	MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI,
108 
109 	MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI,
110 	MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI,
111 	MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI,
112 	MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI,
113 	MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI,
114 	MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI,
115 	MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI,
116 	MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI,
117 	MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI,
118 	MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI,
119 	MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI,
120 	MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI,
121 	MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI,
122 	MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI,
123 	MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI,
124 	MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
125 	MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
126 	MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI,
127 	MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
128 	MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
129 	MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
130 	MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
131 	MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
132 	MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
133 };
134 
135 void board_init_ll(void)
136 {
137 	mx28_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
138 }
139