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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 175a7d2778ad26a244f5c846a6385413c87d95a7 / . / board / freescale / mx28evk / iomux.c
blob: 40d8cf60976785b2e94f515ff4216601999ba93e [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 Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]33
34const iomux_cfg_t iomux_setup[] = {
35 /* DUART */
36 MX28_PAD_PWM0__DUART_RX,
37 MX28_PAD_PWM1__DUART_TX,
38
39 /* MMC0 */
40 MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0,
41 MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0,
42 MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0,
43 MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0,
44 MX28_PAD_SSP0_DATA4__SSP0_D4 | MUX_CONFIG_SSP0,
45 MX28_PAD_SSP0_DATA5__SSP0_D5 | MUX_CONFIG_SSP0,
46 MX28_PAD_SSP0_DATA6__SSP0_D6 | MUX_CONFIG_SSP0,
47 MX28_PAD_SSP0_DATA7__SSP0_D7 | MUX_CONFIG_SSP0,
48 MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0,
49 MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |
50 (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
51 MX28_PAD_SSP0_SCK__SSP0_SCK |
52 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
53 /* write protect */
54 MX28_PAD_SSP1_SCK__GPIO_2_12,
55 /* MMC0 slot power enable */
56 MX28_PAD_PWM3__GPIO_3_28 |
57 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
58
Lauri Hintsalaecb7be22012-04-17 00:35:46 +0000[diff] [blame]59#ifdef CONFIG_NAND_MXS
60 /* GPMI NAND */
61 MX28_PAD_GPMI_D00__GPMI_D0 | MUX_CONFIG_GPMI,
62 MX28_PAD_GPMI_D01__GPMI_D1 | MUX_CONFIG_GPMI,
63 MX28_PAD_GPMI_D02__GPMI_D2 | MUX_CONFIG_GPMI,
64 MX28_PAD_GPMI_D03__GPMI_D3 | MUX_CONFIG_GPMI,
65 MX28_PAD_GPMI_D04__GPMI_D4 | MUX_CONFIG_GPMI,
66 MX28_PAD_GPMI_D05__GPMI_D5 | MUX_CONFIG_GPMI,
67 MX28_PAD_GPMI_D06__GPMI_D6 | MUX_CONFIG_GPMI,
68 MX28_PAD_GPMI_D07__GPMI_D7 | MUX_CONFIG_GPMI,
69 MX28_PAD_GPMI_CE0N__GPMI_CE0N | MUX_CONFIG_GPMI,
70 MX28_PAD_GPMI_RDY0__GPMI_READY0 | MUX_CONFIG_GPMI,
71 MX28_PAD_GPMI_RDN__GPMI_RDN |
72 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP),
73 MX28_PAD_GPMI_WRN__GPMI_WRN | MUX_CONFIG_GPMI,
74 MX28_PAD_GPMI_ALE__GPMI_ALE | MUX_CONFIG_GPMI,
75 MX28_PAD_GPMI_CLE__GPMI_CLE | MUX_CONFIG_GPMI,
76 MX28_PAD_GPMI_RESETN__GPMI_RESETN | MUX_CONFIG_GPMI,
77#endif
78
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]79 /* FEC0 */
80 MX28_PAD_ENET0_MDC__ENET0_MDC | MUX_CONFIG_ENET,
81 MX28_PAD_ENET0_MDIO__ENET0_MDIO | MUX_CONFIG_ENET,
82 MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MUX_CONFIG_ENET,
83 MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MUX_CONFIG_ENET,
84 MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MUX_CONFIG_ENET,
85 MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MUX_CONFIG_ENET,
86 MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MUX_CONFIG_ENET,
87 MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MUX_CONFIG_ENET,
88 MX28_PAD_ENET_CLK__CLKCTRL_ENET | MUX_CONFIG_ENET,
89 /* FEC0 Enable */
90 MX28_PAD_SSP1_DATA3__GPIO_2_15 |
91 (MXS_PAD_12MA | MXS_PAD_3V3),
92 /* FEC0 Reset */
93 MX28_PAD_ENET0_RX_CLK__GPIO_4_13 |
94 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
95
96 /* FEC1 */
97 MX28_PAD_ENET0_COL__ENET1_TX_EN | MUX_CONFIG_ENET,
98 MX28_PAD_ENET0_CRS__ENET1_RX_EN | MUX_CONFIG_ENET,
99 MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MUX_CONFIG_ENET,
100 MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MUX_CONFIG_ENET,
101 MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MUX_CONFIG_ENET,
102 MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MUX_CONFIG_ENET,
103
104 /* EMI */
105 MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI,
106 MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI,
107 MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI,
108 MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI,
109 MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI,
110 MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI,
111 MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI,
112 MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI,
113 MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI,
114 MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI,
115 MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI,
116 MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI,
117 MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI,
118 MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI,
119 MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI,
120 MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI,
121 MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI,
122 MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
123 MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI,
124 MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
125 MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI,
126 MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
127 MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
128 MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
129 MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI,
130
131 MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI,
132 MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI,
133 MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI,
134 MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI,
135 MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI,
136 MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI,
137 MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI,
138 MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI,
139 MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI,
140 MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI,
141 MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI,
142 MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI,
143 MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI,
144 MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI,
145 MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI,
146 MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
147 MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
148 MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI,
149 MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
150 MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
151 MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
152 MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
153 MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
154 MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
Matthias Fuchsed97abe2012-01-18 01:33:09 +0000[diff] [blame]155
156 /* SPI2 (for SPI flash) */
157 MX28_PAD_SSP2_SCK__SSP2_SCK | MUX_CONFIG_SSP2,
158 MX28_PAD_SSP2_MOSI__SSP2_CMD | MUX_CONFIG_SSP2,
159 MX28_PAD_SSP2_MISO__SSP2_D0 | MUX_CONFIG_SSP2,
160 MX28_PAD_SSP2_SS0__SSP2_D3 |
161 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP),
Fabio Estevam175a7d22012-05-07 05:42:34 +0000[diff] [blame^]162 /* I2C */
163 MX28_PAD_I2C0_SCL__I2C0_SCL,
164 MX28_PAD_I2C0_SDA__I2C0_SDA,
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]165};
166
Fabio Estevamf69b0652012-06-19 07:24:56 +0000[diff] [blame]167#define HW_DRAM_CTL29 (0x74 >> 2)
168#define CS_MAP 0xf
169#define COLUMN_SIZE 0x2
170#define ADDR_PINS 0x1
171#define APREBIT 0xa
172
173#define HW_DRAM_CTL29_CONFIG (CS_MAP << 24 | COLUMN_SIZE << 16 | \
174 ADDR_PINS << 8 | APREBIT)
175
176void mx28_adjust_memory_params(uint32_t *dram_vals)
177{
178 dram_vals[HW_DRAM_CTL29] = HW_DRAM_CTL29_CONFIG;
179}
180
Fabio Estevam29f75a52011-12-20 05:46:34 +0000[diff] [blame]181void board_init_ll(void)
182{
183 mx28_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
184}