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
|
/*
* Copyright (C) 2018 Sascha Hauer, Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation.
*
*/
#include <asm/memory.h>
#include <bootsource.h>
#include <common.h>
#include <init.h>
#include <linux/phy.h>
#include <linux/sizes.h>
#include <mach/bbu.h>
#include <envfs.h>
#define PHY_ID_AR8031 0x004dd074
#define AR_PHY_ID_MASK 0xffffffff
static int ar8031_phy_fixup(struct phy_device *phydev)
{
/*
* Enable 1.8V(SEL_1P5_1P8_POS_REG) on
* Phy control debug reg 0
*/
phy_write(phydev, 0x1d, 0x1f);
phy_write(phydev, 0x1e, 0x8);
/* rgmii tx clock delay enable */
phy_write(phydev, 0x1d, 0x05);
phy_write(phydev, 0x1e, 0x100);
return 0;
}
static int nxp_imx8mm_evk_init(void)
{
int emmc_bbu_flag = 0;
int emmc_sd_flag = 0;
if (!of_machine_is_compatible("fsl,imx8mm-evk"))
return 0;
barebox_set_hostname("imx8mm-evk");
if (bootsource_get() == BOOTSOURCE_MMC) {
if (bootsource_get_instance() == 2) {
of_device_enable_path("/chosen/environment-emmc");
emmc_bbu_flag = BBU_HANDLER_FLAG_DEFAULT;
} else {
of_device_enable_path("/chosen/environment-sd");
emmc_sd_flag = BBU_HANDLER_FLAG_DEFAULT;
}
} else {
of_device_enable_path("/chosen/environment-emmc");
emmc_bbu_flag = BBU_HANDLER_FLAG_DEFAULT;
}
imx8mq_bbu_internal_mmc_register_handler("SD", "/dev/mmc1.barebox",
emmc_sd_flag);
imx8mq_bbu_internal_mmc_register_handler("eMMC", "/dev/mmc2",
emmc_bbu_flag);
phy_register_fixup_for_uid(PHY_ID_AR8031, AR_PHY_ID_MASK,
ar8031_phy_fixup);
return 0;
}
device_initcall(nxp_imx8mm_evk_init);
|
