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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 68661db2dcc9c9eeaab11ecc4b75275d0803b63b / . / board / freescale / mx28evk / iomux.c
blob: beae0e66e22fec9e1123fe4795acde67fc811011 [file] [log] [blame]
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]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)
Lauri Hintsalaecb7be22012-04-17 00:35:46 +0000[diff] [blame]29#define MUX_CONFIG_GPMI (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL)
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]30#define MUX_CONFIG_ENET (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
31#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL)
Matthias Fuchsed97abe2012-01-18 01:33:09 +0000[diff] [blame]32#define MUX_CONFIG_SSP2 (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP)
Fabio Estevam68661db2013-05-10 09:14:09 +0000[diff] [blame^]33#define MUX_CONFIG_LCD (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL)
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]34
35const iomux_cfg_t iomux_setup[] = {
36 /* DUART */
37 MX28_PAD_PWM0__DUART_RX,
38 MX28_PAD_PWM1__DUART_TX,
39
40 /* MMC0 */
41 MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0,
42 MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0,
43 MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0,
44 MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0,
45 MX28_PAD_SSP0_DATA4__SSP0_D4 | MUX_CONFIG_SSP0,
46 MX28_PAD_SSP0_DATA5__SSP0_D5 | MUX_CONFIG_SSP0,
47 MX28_PAD_SSP0_DATA6__SSP0_D6 | MUX_CONFIG_SSP0,
48 MX28_PAD_SSP0_DATA7__SSP0_D7 | MUX_CONFIG_SSP0,
49 MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0,
50 MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |
51 (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
52 MX28_PAD_SSP0_SCK__SSP0_SCK |
53 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
54 /* write protect */
55 MX28_PAD_SSP1_SCK__GPIO_2_12,
56 /* MMC0 slot power enable */
57 MX28_PAD_PWM3__GPIO_3_28 |
58 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
59
Lauri Hintsalaecb7be22012-04-17 00:35:46 +0000[diff] [blame]60#ifdef CONFIG_NAND_MXS
61 /* GPMI NAND */
62 MX28_PAD_GPMI_D00__GPMI_D0 | MUX_CONFIG_GPMI,
63 MX28_PAD_GPMI_D01__GPMI_D1 | MUX_CONFIG_GPMI,
64 MX28_PAD_GPMI_D02__GPMI_D2 | MUX_CONFIG_GPMI,
65 MX28_PAD_GPMI_D03__GPMI_D3 | MUX_CONFIG_GPMI,
66 MX28_PAD_GPMI_D04__GPMI_D4 | MUX_CONFIG_GPMI,
67 MX28_PAD_GPMI_D05__GPMI_D5 | MUX_CONFIG_GPMI,
68 MX28_PAD_GPMI_D06__GPMI_D6 | MUX_CONFIG_GPMI,
69 MX28_PAD_GPMI_D07__GPMI_D7 | MUX_CONFIG_GPMI,
70 MX28_PAD_GPMI_CE0N__GPMI_CE0N | MUX_CONFIG_GPMI,
71 MX28_PAD_GPMI_RDY0__GPMI_READY0 | MUX_CONFIG_GPMI,
72 MX28_PAD_GPMI_RDN__GPMI_RDN |
73 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP),
74 MX28_PAD_GPMI_WRN__GPMI_WRN | MUX_CONFIG_GPMI,
75 MX28_PAD_GPMI_ALE__GPMI_ALE | MUX_CONFIG_GPMI,
76 MX28_PAD_GPMI_CLE__GPMI_CLE | MUX_CONFIG_GPMI,
77 MX28_PAD_GPMI_RESETN__GPMI_RESETN | MUX_CONFIG_GPMI,
78#endif
79
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]80 /* FEC0 */
81 MX28_PAD_ENET0_MDC__ENET0_MDC | MUX_CONFIG_ENET,
82 MX28_PAD_ENET0_MDIO__ENET0_MDIO | MUX_CONFIG_ENET,
83 MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MUX_CONFIG_ENET,
84 MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MUX_CONFIG_ENET,
85 MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MUX_CONFIG_ENET,
86 MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MUX_CONFIG_ENET,
87 MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MUX_CONFIG_ENET,
88 MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MUX_CONFIG_ENET,
89 MX28_PAD_ENET_CLK__CLKCTRL_ENET | MUX_CONFIG_ENET,
90 /* FEC0 Enable */
91 MX28_PAD_SSP1_DATA3__GPIO_2_15 |
92 (MXS_PAD_12MA | MXS_PAD_3V3),
93 /* FEC0 Reset */
94 MX28_PAD_ENET0_RX_CLK__GPIO_4_13 |
95 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
96
97 /* FEC1 */
98 MX28_PAD_ENET0_COL__ENET1_TX_EN | MUX_CONFIG_ENET,
99 MX28_PAD_ENET0_CRS__ENET1_RX_EN | MUX_CONFIG_ENET,
100 MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MUX_CONFIG_ENET,
101 MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MUX_CONFIG_ENET,
102 MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MUX_CONFIG_ENET,
103 MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MUX_CONFIG_ENET,
104
105 /* EMI */
106 MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI,
107 MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI,
108 MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI,
109 MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI,
110 MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI,
111 MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI,
112 MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI,
113 MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI,
114 MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI,
115 MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI,
116 MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI,
117 MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI,
118 MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI,
119 MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI,
120 MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI,
121 MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI,
122 MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI,
123 MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
124 MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI,
125 MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
126 MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI,
127 MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
128 MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
129 MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
130 MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI,
131
132 MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI,
133 MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI,
134 MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI,
135 MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI,
136 MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI,
137 MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI,
138 MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI,
139 MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI,
140 MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI,
141 MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI,
142 MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI,
143 MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI,
144 MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI,
145 MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI,
146 MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI,
147 MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
148 MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
149 MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI,
150 MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
151 MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
152 MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
153 MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
154 MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
155 MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
Matthias Fuchsed97abe2012-01-18 01:33:09 +0000[diff] [blame]156
157 /* SPI2 (for SPI flash) */
158 MX28_PAD_SSP2_SCK__SSP2_SCK | MUX_CONFIG_SSP2,
159 MX28_PAD_SSP2_MOSI__SSP2_CMD | MUX_CONFIG_SSP2,
160 MX28_PAD_SSP2_MISO__SSP2_D0 | MUX_CONFIG_SSP2,
161 MX28_PAD_SSP2_SS0__SSP2_D3 |
162 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP),
Fabio Estevam175a7d22012-05-07 05:42:34 +0000[diff] [blame]163 /* I2C */
164 MX28_PAD_I2C0_SCL__I2C0_SCL,
165 MX28_PAD_I2C0_SDA__I2C0_SDA,
Fabio Estevam68661db2013-05-10 09:14:09 +0000[diff] [blame^]166
167 /* LCD */
168 MX28_PAD_LCD_D00__LCD_D0 | MUX_CONFIG_LCD,
169 MX28_PAD_LCD_D01__LCD_D1 | MUX_CONFIG_LCD,
170 MX28_PAD_LCD_D02__LCD_D2 | MUX_CONFIG_LCD,
171 MX28_PAD_LCD_D03__LCD_D3 | MUX_CONFIG_LCD,
172 MX28_PAD_LCD_D04__LCD_D4 | MUX_CONFIG_LCD,
173 MX28_PAD_LCD_D05__LCD_D5 | MUX_CONFIG_LCD,
174 MX28_PAD_LCD_D06__LCD_D6 | MUX_CONFIG_LCD,
175 MX28_PAD_LCD_D07__LCD_D7 | MUX_CONFIG_LCD,
176 MX28_PAD_LCD_D08__LCD_D8 | MUX_CONFIG_LCD,
177 MX28_PAD_LCD_D09__LCD_D9 | MUX_CONFIG_LCD,
178 MX28_PAD_LCD_D10__LCD_D10 | MUX_CONFIG_LCD,
179 MX28_PAD_LCD_D11__LCD_D11 | MUX_CONFIG_LCD,
180 MX28_PAD_LCD_D12__LCD_D12 | MUX_CONFIG_LCD,
181 MX28_PAD_LCD_D13__LCD_D13 | MUX_CONFIG_LCD,
182 MX28_PAD_LCD_D14__LCD_D14 | MUX_CONFIG_LCD,
183 MX28_PAD_LCD_D15__LCD_D15 | MUX_CONFIG_LCD,
184 MX28_PAD_LCD_D16__LCD_D16 | MUX_CONFIG_LCD,
185 MX28_PAD_LCD_D17__LCD_D17 | MUX_CONFIG_LCD,
186 MX28_PAD_LCD_D18__LCD_D18 | MUX_CONFIG_LCD,
187 MX28_PAD_LCD_D19__LCD_D19 | MUX_CONFIG_LCD,
188 MX28_PAD_LCD_D20__LCD_D20 | MUX_CONFIG_LCD,
189 MX28_PAD_LCD_D21__LCD_D21 | MUX_CONFIG_LCD,
190 MX28_PAD_LCD_D22__LCD_D22 | MUX_CONFIG_LCD,
191 MX28_PAD_LCD_D23__LCD_D23 | MUX_CONFIG_LCD,
192 MX28_PAD_LCD_RD_E__LCD_VSYNC | MUX_CONFIG_LCD,
193 MX28_PAD_LCD_WR_RWN__LCD_HSYNC | MUX_CONFIG_LCD,
194 MX28_PAD_LCD_RS__LCD_DOTCLK | MUX_CONFIG_LCD,
195 MX28_PAD_LCD_CS__LCD_ENABLE | MUX_CONFIG_LCD,
196 MX28_PAD_LCD_RESET__GPIO_3_30 | MUX_CONFIG_LCD, /* LCD power */
197 MX28_PAD_PWM2__GPIO_3_18 | MUX_CONFIG_LCD, /* LCD contrast */
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]198};
199
Fabio Estevamf69b0652012-06-19 07:24:56 +0000[diff] [blame]200#define HW_DRAM_CTL29 (0x74 >> 2)
201#define CS_MAP 0xf
202#define COLUMN_SIZE 0x2
203#define ADDR_PINS 0x1
204#define APREBIT 0xa
205
206#define HW_DRAM_CTL29_CONFIG (CS_MAP << 24 | COLUMN_SIZE << 16 | \
207 ADDR_PINS << 8 | APREBIT)
208
Fabio Estevamddfcc812012-08-28 09:29:06 +0000[diff] [blame]209void mxs_adjust_memory_params(uint32_t *dram_vals)
Fabio Estevamf69b0652012-06-19 07:24:56 +0000[diff] [blame]210{
211 dram_vals[HW_DRAM_CTL29] = HW_DRAM_CTL29_CONFIG;
212}
213
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]214void board_init_ll(void)
215{
Otavio Salvador1e0cf5c2012-08-05 09:05:32 +0000[diff] [blame]216 mxs_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]217}