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022d0716 FL |
1 | /* |
2 | * Copyright (C) 2015 Freescale Semiconductor, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | #include <linux/irqchip.h> | |
709bc065 FD |
9 | #include <linux/mfd/syscon.h> |
10 | #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> | |
11 | #include <linux/micrel_phy.h> | |
022d0716 | 12 | #include <linux/of_platform.h> |
709bc065 FD |
13 | #include <linux/phy.h> |
14 | #include <linux/regmap.h> | |
022d0716 FL |
15 | #include <asm/mach/arch.h> |
16 | #include <asm/mach/map.h> | |
17 | ||
18 | #include "common.h" | |
19 | ||
709bc065 FD |
20 | static void __init imx6ul_enet_clk_init(void) |
21 | { | |
22 | struct regmap *gpr; | |
23 | ||
24 | gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr"); | |
25 | if (!IS_ERR(gpr)) | |
26 | regmap_update_bits(gpr, IOMUXC_GPR1, IMX6UL_GPR1_ENET_CLK_DIR, | |
27 | IMX6UL_GPR1_ENET_CLK_OUTPUT); | |
28 | else | |
29 | pr_err("failed to find fsl,imx6ul-iomux-gpr regmap\n"); | |
30 | ||
31 | } | |
32 | ||
33 | static int ksz8081_phy_fixup(struct phy_device *dev) | |
34 | { | |
35 | if (dev && dev->interface == PHY_INTERFACE_MODE_MII) { | |
36 | phy_write(dev, 0x1f, 0x8110); | |
37 | phy_write(dev, 0x16, 0x201); | |
38 | } else if (dev && dev->interface == PHY_INTERFACE_MODE_RMII) { | |
39 | phy_write(dev, 0x1f, 0x8190); | |
40 | phy_write(dev, 0x16, 0x202); | |
41 | } | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | static void __init imx6ul_enet_phy_init(void) | |
47 | { | |
6be4b0da FE |
48 | if (IS_BUILTIN(CONFIG_PHYLIB)) |
49 | phy_register_fixup_for_uid(PHY_ID_KSZ8081, 0xffffffff, | |
50 | ksz8081_phy_fixup); | |
709bc065 FD |
51 | } |
52 | ||
53 | static inline void imx6ul_enet_init(void) | |
54 | { | |
55 | imx6ul_enet_clk_init(); | |
56 | imx6ul_enet_phy_init(); | |
57 | } | |
58 | ||
022d0716 FL |
59 | static void __init imx6ul_init_machine(void) |
60 | { | |
61 | struct device *parent; | |
62 | ||
63 | parent = imx_soc_device_init(); | |
64 | if (parent == NULL) | |
65 | pr_warn("failed to initialize soc device\n"); | |
66 | ||
67 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); | |
709bc065 | 68 | imx6ul_enet_init(); |
022d0716 FL |
69 | imx_anatop_init(); |
70 | } | |
71 | ||
72 | static void __init imx6ul_init_irq(void) | |
73 | { | |
74 | imx_init_revision_from_anatop(); | |
75 | imx_src_init(); | |
76 | irqchip_init(); | |
77 | } | |
78 | ||
79 | static const char *imx6ul_dt_compat[] __initconst = { | |
80 | "fsl,imx6ul", | |
81 | NULL, | |
82 | }; | |
83 | ||
84 | DT_MACHINE_START(IMX6UL, "Freescale i.MX6 Ultralite (Device Tree)") | |
85 | .init_irq = imx6ul_init_irq, | |
86 | .init_machine = imx6ul_init_machine, | |
87 | .dt_compat = imx6ul_dt_compat, | |
88 | MACHINE_END |