2 * (c) 2011 Graf-Syteco, Matthias Weisser
6 * (C) Copyright 2009 DENX Software Engineering
7 * Author: John Rigby <jrigby@gmail.com>
9 * Based on imx27lite.c:
10 * Copyright (C) 2008,2009 Eric Jarrige <jorasse@users.sourceforge.net>
11 * Copyright (C) 2009 Ilya Yanok <yanok@emcraft.com>
13 * RedBoot tx25_misc.c Copyright (C) 2009 Red Hat
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34 #include <asm/arch/imx-regs.h>
35 #include <asm/arch/iomux-mx25.h>
37 DECLARE_GLOBAL_DATA_PTR;
41 static const iomux_v3_cfg_t sdhc1_pads[] = {
42 NEW_PAD_CTRL(MX25_PAD_SD1_CMD__SD1_CMD, NO_PAD_CTRL),
43 NEW_PAD_CTRL(MX25_PAD_SD1_CLK__SD1_CLK, NO_PAD_CTRL),
44 NEW_PAD_CTRL(MX25_PAD_SD1_DATA0__SD1_DATA0, NO_PAD_CTRL),
45 NEW_PAD_CTRL(MX25_PAD_SD1_DATA1__SD1_DATA1, NO_PAD_CTRL),
46 NEW_PAD_CTRL(MX25_PAD_SD1_DATA2__SD1_DATA2, NO_PAD_CTRL),
47 NEW_PAD_CTRL(MX25_PAD_SD1_DATA3__SD1_DATA3, NO_PAD_CTRL),
50 static const iomux_v3_cfg_t dig_out_pads[] = {
51 MX25_PAD_CSI_D8__GPIO_1_7, /* Ouput 1 Ctrl */
52 MX25_PAD_CSI_D7__GPIO_1_6, /* Ouput 2 Ctrl */
53 NEW_PAD_CTRL(MX25_PAD_CSI_D6__GPIO_1_31, 0), /* Ouput 1 Stat */
54 NEW_PAD_CTRL(MX25_PAD_CSI_D5__GPIO_1_30, 0), /* Ouput 2 Stat */
57 static const iomux_v3_cfg_t led_pads[] = {
58 MX25_PAD_CSI_D9__GPIO_4_21,
59 MX25_PAD_CSI_D4__GPIO_1_29,
62 static const iomux_v3_cfg_t can_pads[] = {
63 NEW_PAD_CTRL(MX25_PAD_GPIO_A__CAN1_TX, NO_PAD_CTRL),
64 NEW_PAD_CTRL(MX25_PAD_GPIO_B__CAN1_RX, NO_PAD_CTRL),
65 NEW_PAD_CTRL(MX25_PAD_GPIO_C__CAN2_TX, NO_PAD_CTRL),
66 NEW_PAD_CTRL(MX25_PAD_GPIO_D__CAN2_RX, NO_PAD_CTRL),
69 static const iomux_v3_cfg_t i2c3_pads[] = {
70 MX25_PAD_CSPI1_SS1__I2C3_DAT,
71 MX25_PAD_GPIO_E__I2C3_CLK,
76 /* Setup of core voltage selection pin to run at 1.4V */
77 imx_iomux_v3_setup_pad(MX25_PAD_EXT_ARMCLK__GPIO_3_15); /* VCORE */
78 gpio_direction_output(IMX_GPIO_NR(3, 15), 1);
80 /* Setup of SD card pins*/
81 imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
83 /* Setup of digital output for USB power and OC */
84 imx_iomux_v3_setup_pad(MX25_PAD_CSI_D3__GPIO_1_28); /* USB Power */
85 gpio_direction_output(IMX_GPIO_NR(1, 28), 1);
87 imx_iomux_v3_setup_pad(MX25_PAD_CSI_D2__GPIO_1_27); /* USB OC */
88 gpio_direction_input(IMX_GPIO_NR(1, 18));
90 /* Setup of digital output control pins */
91 imx_iomux_v3_setup_multiple_pads(dig_out_pads,
92 ARRAY_SIZE(dig_out_pads));
94 /* Switch both output drivers off */
95 gpio_direction_output(IMX_GPIO_NR(1, 7), 0);
96 gpio_direction_output(IMX_GPIO_NR(1, 6), 0);
98 /* Setup of key input pin */
99 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX25_PAD_KPP_ROW0__GPIO_2_29, 0));
100 gpio_direction_input(IMX_GPIO_NR(2, 29));
102 /* Setup of status LED outputs */
103 imx_iomux_v3_setup_multiple_pads(led_pads, ARRAY_SIZE(led_pads));
105 /* Switch both LEDs off */
106 gpio_direction_output(IMX_GPIO_NR(4, 21), 0);
107 gpio_direction_output(IMX_GPIO_NR(1, 29), 0);
109 /* Setup of CAN1 and CAN2 signals */
110 imx_iomux_v3_setup_multiple_pads(can_pads, ARRAY_SIZE(can_pads));
112 /* Setup of I2C3 signals */
113 imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads));
115 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
120 int board_late_init(void)
124 #ifdef CONFIG_FEC_MXC
126 * FIXME: need to revisit this
127 * The original code enabled PUE and 100-k pull-down without PKE, so the right
128 * value here is likely:
131 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
133 #define FEC_OUT_PAD_CTRL 0
135 static const iomux_v3_cfg_t fec_pads[] = {
136 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
137 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
138 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
139 NEW_PAD_CTRL(MX25_PAD_FEC_TDATA0__FEC_TDATA0, FEC_OUT_PAD_CTRL),
140 NEW_PAD_CTRL(MX25_PAD_FEC_TX_EN__FEC_TX_EN, FEC_OUT_PAD_CTRL),
141 NEW_PAD_CTRL(MX25_PAD_FEC_MDC__FEC_MDC, FEC_OUT_PAD_CTRL),
142 MX25_PAD_FEC_MDIO__FEC_MDIO,
143 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
144 NEW_PAD_CTRL(MX25_PAD_FEC_TDATA1__FEC_TDATA1, FEC_OUT_PAD_CTRL),
146 MX25_PAD_UPLL_BYPCLK__GPIO_3_16, /* LAN-RESET */
147 MX25_PAD_UART2_CTS__FEC_RX_ER, /* FEC_RX_ERR */
150 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
152 /* assert PHY reset (low) */
153 gpio_direction_output(IMX_GPIO_NR(3, 16), 0);
157 /* deassert PHY reset */
158 gpio_set_value(IMX_GPIO_NR(3, 16), 1);
163 e = getenv("gs_base_board");
165 if (strcmp(e, "G283") == 0) {
166 int key = gpio_get_value(IMX_GPIO_NR(2, 29));
169 /* Switch on both LEDs to inidcate boot mode */
170 gpio_set_value(IMX_GPIO_NR(1, 29), 0);
171 gpio_set_value(IMX_GPIO_NR(4, 21), 0);
173 setenv("preboot", "run gs_slow_boot");
175 setenv("preboot", "run gs_fast_boot");
184 /* dram_init must store complete ramsize in gd->ram_size */
185 gd->ram_size = get_ram_size((void *)PHYS_SDRAM,