aboutsummaryrefslogtreecommitdiff
path: root/board/technexion/pico-imx7d/pico-imx7d.c
blob: 2d749dac19a460f28c8b01fef42e9baf4aef0fdc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2017 NXP Semiconductors
 */

#include <init.h>
#include <net.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx7-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/io.h>
#include <common.h>
#include <i2c.h>
#include <miiphy.h>
#include <power/pmic.h>
#include <power/pfuze3000_pmic.h>
#include "../../freescale/common/pfuze.h"

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
	PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)

#define I2C_PAD_CTRL    (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
	PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU100KOHM)

#ifdef CONFIG_SYS_I2C_MXC
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)

/* I2C4 for PMIC */
static struct i2c_pads_info i2c_pad_info4 = {
	.scl = {
		.i2c_mode = MX7D_PAD_SAI1_RX_SYNC__I2C4_SCL | PC,
		.gpio_mode = MX7D_PAD_SAI1_RX_SYNC__GPIO6_IO16 | PC,
		.gp = IMX_GPIO_NR(6, 16),
	},
	.sda = {
		.i2c_mode = MX7D_PAD_SAI1_RX_BCLK__I2C4_SDA | PC,
		.gpio_mode = MX7D_PAD_SAI1_RX_BCLK__GPIO6_IO17 | PC,
		.gp = IMX_GPIO_NR(6, 17),
	},
};
#endif

int dram_init(void)
{
	gd->ram_size = imx_ddr_size();

	/* Subtract the defined OPTEE runtime firmware length */
#ifdef CONFIG_OPTEE_TZDRAM_SIZE
		gd->ram_size -= CONFIG_OPTEE_TZDRAM_SIZE;
#endif

	return 0;
}

#ifdef CONFIG_POWER
#define I2C_PMIC	3
int power_init_board(void)
{
	struct pmic *p;
	int ret;
	unsigned int reg, rev_id;

	ret = power_pfuze3000_init(I2C_PMIC);
	if (ret)
		return ret;

	p = pmic_get("PFUZE3000");
	ret = pmic_probe(p);
	if (ret) {
		printf("Warning:  Cannot find PMIC PFUZE3000\n");
		printf("\tPower consumption is not optimized.\n");
		return 0;
	}

	pmic_reg_read(p, PFUZE3000_DEVICEID, &reg);
	pmic_reg_read(p, PFUZE3000_REVID, &rev_id);
	printf("PMIC:  PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);

	/* disable Low Power Mode during standby mode */
	pmic_reg_read(p, PFUZE3000_LDOGCTL, &reg);
	reg |= 0x1;
	pmic_reg_write(p, PFUZE3000_LDOGCTL, reg);

	/* SW1A/1B mode set to APS/APS */
	reg = 0x8;
	pmic_reg_write(p, PFUZE3000_SW1AMODE, reg);
	pmic_reg_write(p, PFUZE3000_SW1BMODE, reg);

	/* SW1A/1B standby voltage set to 1.025V */
	reg = 0xd;
	pmic_reg_write(p, PFUZE3000_SW1ASTBY, reg);
	pmic_reg_write(p, PFUZE3000_SW1BSTBY, reg);

	/* decrease SW1B normal voltage to 0.975V */
	pmic_reg_read(p, PFUZE3000_SW1BVOLT, &reg);
	reg &= ~0x1f;
	reg |= PFUZE3000_SW1AB_SETP(975);
	pmic_reg_write(p, PFUZE3000_SW1BVOLT, reg);

	return 0;
}
#endif

static iomux_v3_cfg_t const wdog_pads[] = {
	MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const uart5_pads[] = {
	MX7D_PAD_I2C4_SCL__UART5_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX7D_PAD_I2C4_SDA__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

#ifdef CONFIG_FEC_MXC
static int setup_fec(void)
{
	struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
		= (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;

	/* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17] */
	clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
			(IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK |
			IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0);

	return set_clk_enet(ENET_125MHZ);
}

int board_phy_config(struct phy_device *phydev)
{
	unsigned short val;

	/* To enable AR8035 ouput a 125MHz clk from CLK_25M */
	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);

	val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
	val &= 0xffe7;
	val |= 0x18;
	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);

	/* introduce tx clock delay */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
	val |= 0x0100;
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);

	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}
#endif

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads));
}

int board_early_init_f(void)
{
	setup_iomux_uart();

#ifdef CONFIG_SYS_I2C_MXC
	setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4);
#endif

	return 0;
}

#ifdef CONFIG_DM_VIDEO
void setup_lcd(void)
{
	gpio_request(IMX_GPIO_NR(1, 11), "lcd_brightness");
	gpio_request(IMX_GPIO_NR(1, 6), "lcd_enable");
	/* Set Brightness to high */
	gpio_direction_output(IMX_GPIO_NR(1, 11) , 1);
	/* Set LCD enable to high */
	gpio_direction_output(IMX_GPIO_NR(1, 6) , 1);
}
#endif

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

#ifdef CONFIG_DM_VIDEO
	setup_lcd();
#endif
#ifdef CONFIG_FEC_MXC
	setup_fec();
#endif

	return 0;
}

int board_late_init(void)
{
	struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;

	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));

	set_wdog_reset(wdog);

	/*
	 * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
	 * since we use PMIC_PWRON to reset the board.
	 */
	clrsetbits_le16(&wdog->wcr, 0, 0x10);

	return 0;
}

int checkboard(void)
{
	puts("Board: i.MX7D PICOSOM\n");

	return 0;
}

static iomux_v3_cfg_t const usb_otg2_pads[] = {
	MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
};

int board_ehci_hcd_init(int port)
{
	switch (port) {
	case 0:
		break;
	case 1:
		imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
						 ARRAY_SIZE(usb_otg2_pads));
		break;
	default:
		return -EINVAL;
	}
	return 0;
}