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Fabio Estevam419adbf2011-09-06 09:05:43 +00001/*
2 * (C) Copyright 2011 Freescale Semiconductor, Inc.
3 *
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
5 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Fabio Estevam419adbf2011-09-06 09:05:43 +00007 */
8
9#include <common.h>
10#include <asm/io.h>
Fabio Estevamaf2a4092012-10-23 06:34:49 +000011#include <asm/gpio.h>
Fabio Estevam419adbf2011-09-06 09:05:43 +000012#include <asm/arch/imx-regs.h>
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000013#include <asm/arch/iomux-mx25.h>
Fabio Estevamaf2a4092012-10-23 06:34:49 +000014#include <asm/arch/clock.h>
15#include <mmc.h>
16#include <fsl_esdhc.h>
Fabio Estevame00c89d2012-10-23 06:34:53 +000017#include <i2c.h>
Fabio Estevamcabe2402012-12-11 04:58:02 +000018#include <power/pmic.h>
Fabio Estevame00c89d2012-10-23 06:34:53 +000019#include <fsl_pmic.h>
20#include <mc34704.h>
Fabio Estevamaf2a4092012-10-23 06:34:49 +000021
Benoît Thébaudeau1b1c5262013-05-03 10:32:15 +000022#define FEC_RESET_B IMX_GPIO_NR(4, 8)
23#define FEC_ENABLE_B IMX_GPIO_NR(2, 3)
Fabio Estevamaf2a4092012-10-23 06:34:49 +000024#define CARD_DETECT IMX_GPIO_NR(2, 1)
Fabio Estevam419adbf2011-09-06 09:05:43 +000025
26DECLARE_GLOBAL_DATA_PTR;
27
Fabio Estevamaf2a4092012-10-23 06:34:49 +000028#ifdef CONFIG_FSL_ESDHC
29struct fsl_esdhc_cfg esdhc_cfg[1] = {
30 {IMX_MMC_SDHC1_BASE},
31};
32#endif
33
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000034/*
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:
38 * 0 for no pull
39 * or:
40 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
41 */
42#define FEC_OUT_PAD_CTRL 0
43
44#define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
45 PAD_CTL_ODE)
46
Fabio Estevame00c89d2012-10-23 06:34:53 +000047static void mx25pdk_fec_init(void)
48{
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000049 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),
Fabio Estevame00c89d2012-10-23 06:34:53 +000059
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000060 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 */
62 };
Fabio Estevame00c89d2012-10-23 06:34:53 +000063
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000064 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),
67 };
Fabio Estevame00c89d2012-10-23 06:34:53 +000068
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000069 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
Fabio Estevame00c89d2012-10-23 06:34:53 +000070
71 /* Assert RESET and ENABLE low */
72 gpio_direction_output(FEC_RESET_B, 0);
73 gpio_direction_output(FEC_ENABLE_B, 0);
74
75 udelay(10);
76
77 /* Deassert RESET and ENABLE */
78 gpio_set_value(FEC_RESET_B, 1);
79 gpio_set_value(FEC_ENABLE_B, 1);
80
81 /* Setup I2C pins so that PMIC can turn on PHY supply */
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000082 imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
Fabio Estevame00c89d2012-10-23 06:34:53 +000083}
84
Fabio Estevam419adbf2011-09-06 09:05:43 +000085int dram_init(void)
86{
87 /* dram_init must store complete ramsize in gd->ram_size */
88 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
89 PHYS_SDRAM_1_SIZE);
90 return 0;
91}
92
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +000093/*
94 * Set up input pins with hysteresis and 100-k pull-ups
95 */
96#define UART1_IN_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP)
97/*
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:
101 * 0 for no pull
102 * or:
103 * PAD_CTL_PUS_100K_DOWN for 100-k pull-down
104 */
105#define UART1_OUT_PAD_CTRL 0
106
107static void mx25pdk_uart1_init(void)
108{
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),
114 };
115
116 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
117}
118
Fabio Estevam419adbf2011-09-06 09:05:43 +0000119int board_early_init_f(void)
120{
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +0000121 mx25pdk_uart1_init();
Fabio Estevam419adbf2011-09-06 09:05:43 +0000122
123 return 0;
124}
125
126int board_init(void)
127{
Fabio Estevam419adbf2011-09-06 09:05:43 +0000128 /* address of boot parameters */
129 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
130
131 return 0;
132}
133
Fabio Estevame00c89d2012-10-23 06:34:53 +0000134int board_late_init(void)
135{
136 struct pmic *p;
Fabio Estevamcabe2402012-12-11 04:58:02 +0000137 int ret;
Fabio Estevame00c89d2012-10-23 06:34:53 +0000138
139 mx25pdk_fec_init();
140
Fabio Estevam570aa2f2013-11-20 21:17:36 -0200141 ret = pmic_init(I2C_0);
Fabio Estevamcabe2402012-12-11 04:58:02 +0000142 if (ret)
143 return ret;
144
145 p = pmic_get("FSL_PMIC");
146 if (!p)
147 return -ENODEV;
148
Fabio Estevam86a390d2015-02-21 17:22:50 -0200149 /* Turn on Ethernet PHY and LCD supplies */
150 pmic_reg_write(p, MC34704_GENERAL2_REG, ONOFFE | ONOFFA);
Fabio Estevame00c89d2012-10-23 06:34:53 +0000151
152 return 0;
153}
154
Fabio Estevamaf2a4092012-10-23 06:34:49 +0000155#ifdef CONFIG_FSL_ESDHC
156int board_mmc_getcd(struct mmc *mmc)
157{
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +0000158 /* Set up the Card Detect pin. */
159 imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX25_PAD_A15__GPIO_2_1, 0));
Fabio Estevamaf2a4092012-10-23 06:34:49 +0000160
161 gpio_direction_input(CARD_DETECT);
162 return !gpio_get_value(CARD_DETECT);
163}
164
165int board_mmc_init(bd_t *bis)
166{
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +0000167 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),
174 };
Fabio Estevamaf2a4092012-10-23 06:34:49 +0000175
Benoît Thébaudeaud6208a32013-05-03 10:32:14 +0000176 imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
Fabio Estevamaf2a4092012-10-23 06:34:49 +0000177
178 esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
179 return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
180}
181#endif
182
Fabio Estevam419adbf2011-09-06 09:05:43 +0000183int checkboard(void)
184{
185 puts("Board: MX25PDK\n");
186
187 return 0;
188}