2 * (C) Copyright 2011 Freescale Semiconductor, Inc.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
6 * SPDX-License-Identifier: GPL-2.0+
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/iomux-mx25.h>
14 #include <asm/arch/clock.h>
16 #include <fsl_esdhc.h>
18 #include <power/pmic.h>
22 #define FEC_RESET_B IMX_GPIO_NR(4, 8)
23 #define FEC_ENABLE_B IMX_GPIO_NR(2, 3)
24 #define CARD_DETECT IMX_GPIO_NR(2, 1)
26 DECLARE_GLOBAL_DATA_PTR;
28 #ifdef CONFIG_FSL_ESDHC
29 struct fsl_esdhc_cfg esdhc_cfg[1] = {
35 * FIXME: need to revisit this
36 * The original code enabled PUE and 100-k pull-down without PKE, so the right
37 * value here is likely:
40 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
42 #define FEC_OUT_PAD_CTRL 0
44 #define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
47 static void mx25pdk_fec_init(void)
49 static const iomux_v3_cfg_t fec_pads[] = {
50 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
51 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
52 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
53 NEW_PAD_CTRL(MX25_PAD_FEC_TDATA0__FEC_TDATA0, FEC_OUT_PAD_CTRL),
54 NEW_PAD_CTRL(MX25_PAD_FEC_TX_EN__FEC_TX_EN, FEC_OUT_PAD_CTRL),
55 NEW_PAD_CTRL(MX25_PAD_FEC_MDC__FEC_MDC, FEC_OUT_PAD_CTRL),
56 MX25_PAD_FEC_MDIO__FEC_MDIO,
57 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
58 NEW_PAD_CTRL(MX25_PAD_FEC_TDATA1__FEC_TDATA1, FEC_OUT_PAD_CTRL),
60 NEW_PAD_CTRL(MX25_PAD_D12__GPIO_4_8, 0), /* FEC_RESET_B */
61 NEW_PAD_CTRL(MX25_PAD_A17__GPIO_2_3, 0), /* FEC_ENABLE_B */
64 static const iomux_v3_cfg_t i2c_pads[] = {
65 NEW_PAD_CTRL(MX25_PAD_I2C1_CLK__I2C1_CLK, I2C_PAD_CTRL),
66 NEW_PAD_CTRL(MX25_PAD_I2C1_DAT__I2C1_DAT, I2C_PAD_CTRL),
69 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
71 /* Assert RESET and ENABLE low */
72 gpio_direction_output(FEC_RESET_B, 0);
73 gpio_direction_output(FEC_ENABLE_B, 0);
77 /* Deassert RESET and ENABLE */
78 gpio_set_value(FEC_RESET_B, 1);
79 gpio_set_value(FEC_ENABLE_B, 1);
81 /* Setup I2C pins so that PMIC can turn on PHY supply */
82 imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
87 /* dram_init must store complete ramsize in gd->ram_size */
88 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
94 * Set up input pins with hysteresis and 100-k pull-ups
96 #define UART1_IN_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP)
98 * FIXME: need to revisit this
99 * The original code enabled PUE and 100-k pull-down without PKE, so the right
100 * value here is likely:
103 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
105 #define UART1_OUT_PAD_CTRL 0
107 static void mx25pdk_uart1_init(void)
109 static const iomux_v3_cfg_t uart1_pads[] = {
110 NEW_PAD_CTRL(MX25_PAD_UART1_RXD__UART1_RXD, UART1_IN_PAD_CTRL),
111 NEW_PAD_CTRL(MX25_PAD_UART1_TXD__UART1_TXD, UART1_OUT_PAD_CTRL),
112 NEW_PAD_CTRL(MX25_PAD_UART1_RTS__UART1_RTS, UART1_OUT_PAD_CTRL),
113 NEW_PAD_CTRL(MX25_PAD_UART1_CTS__UART1_CTS, UART1_IN_PAD_CTRL),
116 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
119 int board_early_init_f(void)
121 mx25pdk_uart1_init();
128 /* address of boot parameters */
129 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
134 int board_late_init(void)
141 ret = pmic_init(I2C_0);
145 p = pmic_get("FSL_PMIC");
149 /* Turn on Ethernet PHY and LCD supplies */
150 pmic_reg_write(p, MC34704_GENERAL2_REG, ONOFFE | ONOFFA);
155 #ifdef CONFIG_FSL_ESDHC
156 int board_mmc_getcd(struct mmc *mmc)
158 /* Set up the Card Detect pin. */
159 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX25_PAD_A15__GPIO_2_1, 0));
161 gpio_direction_input(CARD_DETECT);
162 return !gpio_get_value(CARD_DETECT);
165 int board_mmc_init(bd_t *bis)
167 static const iomux_v3_cfg_t sdhc1_pads[] = {
168 NEW_PAD_CTRL(MX25_PAD_SD1_CMD__SD1_CMD, NO_PAD_CTRL),
169 NEW_PAD_CTRL(MX25_PAD_SD1_CLK__SD1_CLK, NO_PAD_CTRL),
170 NEW_PAD_CTRL(MX25_PAD_SD1_DATA0__SD1_DATA0, NO_PAD_CTRL),
171 NEW_PAD_CTRL(MX25_PAD_SD1_DATA1__SD1_DATA1, NO_PAD_CTRL),
172 NEW_PAD_CTRL(MX25_PAD_SD1_DATA2__SD1_DATA2, NO_PAD_CTRL),
173 NEW_PAD_CTRL(MX25_PAD_SD1_DATA3__SD1_DATA3, NO_PAD_CTRL),
176 imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
178 esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
179 return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
185 puts("Board: MX25PDK\n");