mtd: sf: Make sf_mtd.c more robust
[platform/kernel/u-boot.git] / arch / arm / mach-meson / eth.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2016 BayLibre, SAS
4  * Author: Neil Armstrong <narmstrong@baylibre.com>
5  */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <asm/io.h>
10 #include <asm/arch/gx.h>
11 #include <asm/arch/eth.h>
12 #include <phy.h>
13
14 /* Configure the Ethernet MAC with the requested interface mode
15  * with some optional flags.
16  */
17 void meson_gx_eth_init(phy_interface_t mode, unsigned int flags)
18 {
19         switch (mode) {
20         case PHY_INTERFACE_MODE_RGMII:
21         case PHY_INTERFACE_MODE_RGMII_ID:
22         case PHY_INTERFACE_MODE_RGMII_RXID:
23         case PHY_INTERFACE_MODE_RGMII_TXID:
24                 /* Set RGMII mode */
25                 setbits_le32(GX_ETH_REG_0, GX_ETH_REG_0_PHY_INTF |
26                              GX_ETH_REG_0_TX_PHASE(1) |
27                              GX_ETH_REG_0_TX_RATIO(4) |
28                              GX_ETH_REG_0_PHY_CLK_EN |
29                              GX_ETH_REG_0_CLK_EN);
30                 break;
31
32         case PHY_INTERFACE_MODE_RMII:
33                 /* Set RMII mode */
34                 out_le32(GX_ETH_REG_0, GX_ETH_REG_0_INVERT_RMII_CLK |
35                                          GX_ETH_REG_0_CLK_EN);
36
37                 /* Use GXL RMII Internal PHY */
38                 if (IS_ENABLED(CONFIG_MESON_GXL) &&
39                     (flags & MESON_GXL_USE_INTERNAL_RMII_PHY)) {
40                         writel(0x10110181, GX_ETH_REG_2);
41                         writel(0xe40908ff, GX_ETH_REG_3);
42                 }
43
44                 break;
45
46         default:
47                 printf("Invalid Ethernet interface mode\n");
48                 return;
49         }
50
51         /* Enable power gate */
52         clrbits_le32(GX_MEM_PD_REG_0, GX_MEM_PD_REG_0_ETH_MASK);
53 }