2 * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/arch/gxbb.h>
11 #include <asm/arch/sm.h>
14 #define EFUSE_SN_OFFSET 20
15 #define EFUSE_SN_SIZE 16
16 #define EFUSE_MAC_OFFSET 52
17 #define EFUSE_MAC_SIZE 6
26 u8 mac_addr
[EFUSE_MAC_SIZE
];
27 char serial
[EFUSE_SN_SIZE
];
31 setbits_le32(GXBB_ETH_REG_0
, GXBB_ETH_REG_0_PHY_INTF
|
32 GXBB_ETH_REG_0_TX_PHASE(1) |
33 GXBB_ETH_REG_0_TX_RATIO(4) |
34 GXBB_ETH_REG_0_PHY_CLK_EN
|
35 GXBB_ETH_REG_0_CLK_EN
);
37 /* Enable power and clock gate */
38 setbits_le32(GXBB_GCLK_MPEG_1
, GXBB_GCLK_MPEG_1_ETH
);
39 clrbits_le32(GXBB_MEM_PD_REG_0
, GXBB_MEM_PD_REG_0_ETH_MASK
);
41 /* Reset PHY on GPIOZ_14 */
42 clrbits_le32(GXBB_GPIO_EN(3), BIT(14));
43 clrbits_le32(GXBB_GPIO_OUT(3), BIT(14));
45 setbits_le32(GXBB_GPIO_OUT(3), BIT(14));
47 if (!eth_getenv_enetaddr("ethaddr", mac_addr
)) {
48 len
= meson_sm_read_efuse(EFUSE_MAC_OFFSET
,
49 mac_addr
, EFUSE_MAC_SIZE
);
50 if (len
== EFUSE_MAC_SIZE
&& is_valid_ethaddr(mac_addr
))
51 eth_env_set_enetaddr("ethaddr", mac_addr
);
54 if (!getenv("serial#")) {
55 len
= meson_sm_read_efuse(EFUSE_SN_OFFSET
, serial
,
57 if (len
== EFUSE_SN_SIZE
)
58 env_set("serial#", serial
);