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
|
// SPDX-License-Identifier: GPL-2.0+
// Copyright (C) 2021 Fabio Estevam <festevam@denx.de>
#include <init.h>
#include <net.h>
#include <asm/arch/clock.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/hab.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/io.h>
#include <common.h>
#include <env.h>
#include <env_internal.h>
#include <asm/arch/crm_regs.h>
#include <asm/setup.h>
#include <asm/bootm.h>
#include <mmc.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU100KOHM | \
PAD_CTL_HYS)
int dram_init(void)
{
gd->ram_size = PHYS_SDRAM_SIZE;
return 0;
}
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 uart1_pads[] = {
MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
};
static int setup_fec(void)
{
struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs =
(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
int ret;
/* 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);
ret = set_clk_enet(ENET_125MHZ);
if (ret)
return ret;
return 0;
}
int board_early_init_f(void)
{
setup_iomux_uart();
setup_fec();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
return 0;
}
int board_late_init(void)
{
struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
unsigned char eth1addr[6];
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);
/* Get the second MAC address */
imx_get_mac_from_fuse(1, eth1addr);
if (!env_get("eth1addr") && is_valid_ethaddr(eth1addr))
eth_env_set_enetaddr("eth1addr", eth1addr);
return 0;
}
uint mmc_get_env_part(struct mmc *mmc)
{
uint part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config);
if (part == 7)
part = 0;
return part;
}
enum env_location env_get_location(enum env_operation op, int prio)
{
if (op == ENVOP_SAVE || op == ENVOP_ERASE)
return ENVL_MMC;
switch (prio) {
case 0:
return ENVL_NOWHERE;
case 1:
return ENVL_MMC;
}
return ENVL_UNKNOWN;
}
|