blob: 49dfdb67174aaa99972ddba6a0de7c35f125fa06 [file] [log] [blame]
Otavio Salvador4579dc32015-02-17 10:42:46 -02001/*
2 * Copyright (C) 2014, 2015 O.S. Systems Software LTDA.
3 * Copyright (C) 2014 Kynetics LLC.
4 * Copyright (C) 2014 Revolution Robotics, Inc.
5 *
6 * Author: Otavio Salvador <otavio@ossystems.com.br>
7 *
8 * SPDX-License-Identifier: GPL-2.0+
9 */
10
11#include <asm/arch/clock.h>
12#include <asm/arch/iomux.h>
13#include <asm/arch/imx-regs.h>
14#include <asm/arch/mx6-pins.h>
15#include <asm/arch/sys_proto.h>
16#include <asm/gpio.h>
17#include <asm/imx-common/iomux-v3.h>
Fabio Estevam44f98f92015-07-21 19:48:41 -030018#include <asm/imx-common/mxc_i2c.h>
Otavio Salvador4579dc32015-02-17 10:42:46 -020019#include <asm/io.h>
20#include <linux/sizes.h>
21#include <common.h>
22#include <watchdog.h>
23#include <fsl_esdhc.h>
Fabio Estevam44f98f92015-07-21 19:48:41 -030024#include <i2c.h>
Otavio Salvador4579dc32015-02-17 10:42:46 -020025#include <mmc.h>
Fabio Estevam09ac7b52015-02-28 15:16:42 -030026#include <usb.h>
Fabio Estevam44f98f92015-07-21 19:48:41 -030027#include <power/pmic.h>
28#include <power/max77696_pmic.h>
Otavio Salvador4579dc32015-02-17 10:42:46 -020029
30DECLARE_GLOBAL_DATA_PTR;
31
32#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
33 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
34 PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
35 PAD_CTL_LVE)
36
37#define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
38 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
39 PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
40 PAD_CTL_LVE)
41
Fabio Estevam44f98f92015-07-21 19:48:41 -030042#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
43 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
44 PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
45 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
46
Otavio Salvador4579dc32015-02-17 10:42:46 -020047int dram_init(void)
48{
49 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
50
51 return 0;
52}
53
54static void setup_iomux_uart(void)
55{
56 static iomux_v3_cfg_t const uart1_pads[] = {
57 MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
58 MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
59 };
60
61 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
62}
63
64static struct fsl_esdhc_cfg usdhc_cfg[1] = {
65 {USDHC2_BASE_ADDR},
66};
67
68int board_mmc_getcd(struct mmc *mmc)
69{
70 return 1; /* Assume boot SD always present */
71}
72
73int board_mmc_init(bd_t *bis)
74{
75 static iomux_v3_cfg_t const usdhc2_pads[] = {
76 MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
77 MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
78 MX6_PAD_SD2_RST__USDHC2_RST | MUX_PAD_CTRL(USDHC_PAD_CTRL),
79 MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
80 MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
81 MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
82 MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
83 MX6_PAD_SD2_DAT4__USDHC2_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
84 MX6_PAD_SD2_DAT5__USDHC2_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
85 MX6_PAD_SD2_DAT6__USDHC2_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
86 MX6_PAD_SD2_DAT7__USDHC2_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
87 };
88
89 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
90
91 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
92 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
93}
94
Fabio Estevam09ac7b52015-02-28 15:16:42 -030095int board_usb_phy_mode(int port)
96{
97 return USB_INIT_DEVICE;
98}
99
Fabio Estevam44f98f92015-07-21 19:48:41 -0300100/* I2C1 for PMIC */
101#define I2C_PMIC 0
102#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
103struct i2c_pads_info i2c_pad_info1 = {
104 .sda = {
105 .i2c_mode = MX6_PAD_I2C1_SDA__I2C1_SDA | PC,
106 .gpio_mode = MX6_PAD_I2C1_SDA__GPIO_3_13 | PC,
107 .gp = IMX_GPIO_NR(3, 13),
108 },
109 .scl = {
110 .i2c_mode = MX6_PAD_I2C1_SCL__I2C1_SCL | PC,
111 .gpio_mode = MX6_PAD_I2C1_SCL__GPIO_3_12 | PC,
112 .gp = IMX_GPIO_NR(3, 12),
113 },
114};
115
116int power_init_board(void)
117{
118 struct pmic *p;
119 int ret;
120 unsigned int reg;
121
122 ret = power_max77696_init(I2C_PMIC);
123 if (ret)
124 return ret;
125
126 p = pmic_get("MAX77696");
127 if (!p)
128 return -EINVAL;
129
130 ret = pmic_reg_read(p, CID, &reg);
131 if (ret)
132 return ret;
133
134 printf("PMIC: MAX77696 detected, rev=0x%x\n", reg);
135
136 return pmic_probe(p);
137}
138
Otavio Salvador4579dc32015-02-17 10:42:46 -0200139int board_early_init_f(void)
140{
141 setup_iomux_uart();
142 return 0;
143}
144
145int board_init(void)
146{
147 /* address of boot parameters */
148 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
149
Fabio Estevam44f98f92015-07-21 19:48:41 -0300150 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
151
Otavio Salvador4579dc32015-02-17 10:42:46 -0200152 return 0;
153}
154
155int board_late_init(void)
156{
157#ifdef CONFIG_HW_WATCHDOG
158 hw_watchdog_init();
159#endif
160
161 return 0;
162}
163
164int checkboard(void)
165{
166 puts("Board: WaRP Board\n");
167
168 return 0;
169}