1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
4  */
5 
6 #include <common.h>
7 #include <dm.h>
8 #include <environment.h>
9 #include <asm/io.h>
10 #include <asm/arch/gx.h>
11 #include <asm/arch/sm.h>
12 #include <asm/arch/eth.h>
13 #include <asm/arch/mem.h>
14 
15 #define EFUSE_SN_OFFSET		20
16 #define EFUSE_SN_SIZE		16
17 #define EFUSE_MAC_OFFSET	52
18 #define EFUSE_MAC_SIZE		6
19 
20 int board_init(void)
21 {
22 	return 0;
23 }
24 
25 int misc_init_r(void)
26 {
27 	u8 mac_addr[EFUSE_MAC_SIZE];
28 	char serial[EFUSE_SN_SIZE];
29 	ssize_t len;
30 
31 	meson_gx_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
32 
33 	/* Enable power and clock gate */
34 	setbits_le32(GX_GCLK_MPEG_0, GX_GCLK_MPEG_0_I2C);
35 
36 	/* Reset PHY on GPIOZ_14 */
37 	clrbits_le32(GX_GPIO_EN(3), BIT(14));
38 	clrbits_le32(GX_GPIO_OUT(3), BIT(14));
39 	mdelay(10);
40 	setbits_le32(GX_GPIO_OUT(3), BIT(14));
41 
42 	if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
43 		len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
44 					  mac_addr, EFUSE_MAC_SIZE);
45 		if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
46 			eth_env_set_enetaddr("ethaddr", mac_addr);
47 	}
48 
49 	if (!env_get("serial#")) {
50 		len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
51 			EFUSE_SN_SIZE);
52 		if (len == EFUSE_SN_SIZE)
53 			env_set("serial#", serial);
54 	}
55 
56 	return 0;
57 }
58 
59 int ft_board_setup(void *blob, bd_t *bd)
60 {
61 	meson_gx_init_reserved_memory(blob);
62 
63 	return 0;
64 }
65