1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2014, 2015 O.S. Systems Software LTDA.
4 * Copyright (C) 2014 Kynetics LLC.
5 * Copyright (C) 2014 Revolution Robotics, Inc.
7 * Author: Otavio Salvador <otavio@ossystems.com.br>
10 #include <asm/arch/clock.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/mx6-pins.h>
14 #include <asm/arch/sys_proto.h>
16 #include <asm/mach-imx/iomux-v3.h>
17 #include <asm/mach-imx/mxc_i2c.h>
19 #include <linux/sizes.h>
22 #include <fsl_esdhc_imx.h>
26 #include <power/pmic.h>
27 #include <power/max77696_pmic.h>
29 DECLARE_GLOBAL_DATA_PTR
;
31 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
32 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
33 PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
36 #define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
37 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
38 PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
41 #define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
42 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
43 PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
44 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
48 gd
->ram_size
= imx_ddr_size();
53 static void setup_iomux_uart(void)
55 static iomux_v3_cfg_t
const uart1_pads
[] = {
56 MX6_PAD_UART1_TXD__UART1_TXD
| MUX_PAD_CTRL(UART_PAD_CTRL
),
57 MX6_PAD_UART1_RXD__UART1_RXD
| MUX_PAD_CTRL(UART_PAD_CTRL
),
60 imx_iomux_v3_setup_multiple_pads(uart1_pads
, ARRAY_SIZE(uart1_pads
));
63 static struct fsl_esdhc_cfg usdhc_cfg
[1] = {
64 {USDHC2_BASE_ADDR
, 0, 0, 0, 1},
67 int board_mmc_getcd(struct mmc
*mmc
)
69 return 1; /* Assume boot SD always present */
72 int board_mmc_init(bd_t
*bis
)
74 static iomux_v3_cfg_t
const usdhc2_pads
[] = {
75 MX6_PAD_SD2_CLK__USDHC2_CLK
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
76 MX6_PAD_SD2_CMD__USDHC2_CMD
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
77 MX6_PAD_SD2_RST__USDHC2_RST
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
78 MX6_PAD_SD2_DAT0__USDHC2_DAT0
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
79 MX6_PAD_SD2_DAT1__USDHC2_DAT1
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
80 MX6_PAD_SD2_DAT2__USDHC2_DAT2
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
81 MX6_PAD_SD2_DAT3__USDHC2_DAT3
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
82 MX6_PAD_SD2_DAT4__USDHC2_DAT4
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
83 MX6_PAD_SD2_DAT5__USDHC2_DAT5
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
84 MX6_PAD_SD2_DAT6__USDHC2_DAT6
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
85 MX6_PAD_SD2_DAT7__USDHC2_DAT7
| MUX_PAD_CTRL(USDHC_PAD_CTRL
),
88 imx_iomux_v3_setup_multiple_pads(usdhc2_pads
, ARRAY_SIZE(usdhc2_pads
));
90 usdhc_cfg
[0].sdhc_clk
= mxc_get_clock(MXC_ESDHC2_CLK
);
91 return fsl_esdhc_initialize(bis
, &usdhc_cfg
[0]);
94 int board_usb_phy_mode(int port
)
96 return USB_INIT_DEVICE
;
101 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
102 struct i2c_pads_info i2c_pad_info1
= {
104 .i2c_mode
= MX6_PAD_I2C1_SDA__I2C1_SDA
| PC
,
105 .gpio_mode
= MX6_PAD_I2C1_SDA__GPIO_3_13
| PC
,
106 .gp
= IMX_GPIO_NR(3, 13),
109 .i2c_mode
= MX6_PAD_I2C1_SCL__I2C1_SCL
| PC
,
110 .gpio_mode
= MX6_PAD_I2C1_SCL__GPIO_3_12
| PC
,
111 .gp
= IMX_GPIO_NR(3, 12),
115 int power_init_board(void)
121 ret
= power_max77696_init(I2C_PMIC
);
125 p
= pmic_get("MAX77696");
129 ret
= pmic_reg_read(p
, CID
, ®
);
133 printf("PMIC: MAX77696 detected, rev=0x%x\n", reg
);
135 return pmic_probe(p
);
138 int board_early_init_f(void)
146 /* address of boot parameters */
147 gd
->bd
->bi_boot_params
= PHYS_SDRAM
+ 0x100;
149 setup_i2c(0, CONFIG_SYS_I2C_SPEED
, 0x7f, &i2c_pad_info1
);
154 int board_late_init(void)
156 #ifdef CONFIG_HW_WATCHDOG
165 puts("Board: WaRP Board\n");