2 * (C) Copyright 2011 Freescale Semiconductor, Inc.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
23 #include <asm/arch/imx-regs.h>
24 #include <asm/arch/iomux-mx25.h>
25 #include <asm/arch/clock.h>
27 #include <fsl_esdhc.h>
29 #include <power/pmic.h>
33 #define FEC_RESET_B IMX_GPIO_NR(4, 8)
34 #define FEC_ENABLE_B IMX_GPIO_NR(2, 3)
35 #define CARD_DETECT IMX_GPIO_NR(2, 1)
37 DECLARE_GLOBAL_DATA_PTR;
39 #ifdef CONFIG_FSL_ESDHC
40 struct fsl_esdhc_cfg esdhc_cfg[1] = {
46 * FIXME: need to revisit this
47 * The original code enabled PUE and 100-k pull-down without PKE, so the right
48 * value here is likely:
51 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
53 #define FEC_OUT_PAD_CTRL 0
55 #define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
58 static void mx25pdk_fec_init(void)
60 static const iomux_v3_cfg_t fec_pads[] = {
61 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
62 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
63 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
64 NEW_PAD_CTRL(MX25_PAD_FEC_TDATA0__FEC_TDATA0, FEC_OUT_PAD_CTRL),
65 NEW_PAD_CTRL(MX25_PAD_FEC_TX_EN__FEC_TX_EN, FEC_OUT_PAD_CTRL),
66 NEW_PAD_CTRL(MX25_PAD_FEC_MDC__FEC_MDC, FEC_OUT_PAD_CTRL),
67 MX25_PAD_FEC_MDIO__FEC_MDIO,
68 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
69 NEW_PAD_CTRL(MX25_PAD_FEC_TDATA1__FEC_TDATA1, FEC_OUT_PAD_CTRL),
71 NEW_PAD_CTRL(MX25_PAD_D12__GPIO_4_8, 0), /* FEC_RESET_B */
72 NEW_PAD_CTRL(MX25_PAD_A17__GPIO_2_3, 0), /* FEC_ENABLE_B */
75 static const iomux_v3_cfg_t i2c_pads[] = {
76 NEW_PAD_CTRL(MX25_PAD_I2C1_CLK__I2C1_CLK, I2C_PAD_CTRL),
77 NEW_PAD_CTRL(MX25_PAD_I2C1_DAT__I2C1_DAT, I2C_PAD_CTRL),
80 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
82 /* Assert RESET and ENABLE low */
83 gpio_direction_output(FEC_RESET_B, 0);
84 gpio_direction_output(FEC_ENABLE_B, 0);
88 /* Deassert RESET and ENABLE */
89 gpio_set_value(FEC_RESET_B, 1);
90 gpio_set_value(FEC_ENABLE_B, 1);
92 /* Setup I2C pins so that PMIC can turn on PHY supply */
93 imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
98 /* dram_init must store complete ramsize in gd->ram_size */
99 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
105 * Set up input pins with hysteresis and 100-k pull-ups
107 #define UART1_IN_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP)
109 * FIXME: need to revisit this
110 * The original code enabled PUE and 100-k pull-down without PKE, so the right
111 * value here is likely:
114 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
116 #define UART1_OUT_PAD_CTRL 0
118 static void mx25pdk_uart1_init(void)
120 static const iomux_v3_cfg_t uart1_pads[] = {
121 NEW_PAD_CTRL(MX25_PAD_UART1_RXD__UART1_RXD, UART1_IN_PAD_CTRL),
122 NEW_PAD_CTRL(MX25_PAD_UART1_TXD__UART1_TXD, UART1_OUT_PAD_CTRL),
123 NEW_PAD_CTRL(MX25_PAD_UART1_RTS__UART1_RTS, UART1_OUT_PAD_CTRL),
124 NEW_PAD_CTRL(MX25_PAD_UART1_CTS__UART1_CTS, UART1_IN_PAD_CTRL),
127 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
130 int board_early_init_f(void)
132 mx25pdk_uart1_init();
139 /* address of boot parameters */
140 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
145 int board_late_init(void)
152 ret = pmic_init(I2C_PMIC);
156 p = pmic_get("FSL_PMIC");
160 /* Turn on Ethernet PHY supply */
161 pmic_reg_write(p, MC34704_GENERAL2_REG, ONOFFE);
166 #ifdef CONFIG_FSL_ESDHC
167 int board_mmc_getcd(struct mmc *mmc)
169 /* Set up the Card Detect pin. */
170 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX25_PAD_A15__GPIO_2_1, 0));
172 gpio_direction_input(CARD_DETECT);
173 return !gpio_get_value(CARD_DETECT);
176 int board_mmc_init(bd_t *bis)
178 static const iomux_v3_cfg_t sdhc1_pads[] = {
179 NEW_PAD_CTRL(MX25_PAD_SD1_CMD__SD1_CMD, NO_PAD_CTRL),
180 NEW_PAD_CTRL(MX25_PAD_SD1_CLK__SD1_CLK, NO_PAD_CTRL),
181 NEW_PAD_CTRL(MX25_PAD_SD1_DATA0__SD1_DATA0, NO_PAD_CTRL),
182 NEW_PAD_CTRL(MX25_PAD_SD1_DATA1__SD1_DATA1, NO_PAD_CTRL),
183 NEW_PAD_CTRL(MX25_PAD_SD1_DATA2__SD1_DATA2, NO_PAD_CTRL),
184 NEW_PAD_CTRL(MX25_PAD_SD1_DATA3__SD1_DATA3, NO_PAD_CTRL),
187 imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
189 esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
190 return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
196 puts("Board: MX25PDK\n");