This source file includes following definitions.
- clk_mt7622_ethsys_init
- clk_mt7622_sgmiisys_init
- clk_mt7622_eth_probe
1
2
3
4
5
6
7
8 #include <linux/clk-provider.h>
9 #include <linux/of.h>
10 #include <linux/of_address.h>
11 #include <linux/of_device.h>
12 #include <linux/platform_device.h>
13
14 #include "clk-mtk.h"
15 #include "clk-gate.h"
16
17 #include <dt-bindings/clock/mt7622-clk.h>
18
19 #define GATE_ETH(_id, _name, _parent, _shift) { \
20 .id = _id, \
21 .name = _name, \
22 .parent_name = _parent, \
23 .regs = ð_cg_regs, \
24 .shift = _shift, \
25 .ops = &mtk_clk_gate_ops_no_setclr_inv, \
26 }
27
28 static const struct mtk_gate_regs eth_cg_regs = {
29 .set_ofs = 0x30,
30 .clr_ofs = 0x30,
31 .sta_ofs = 0x30,
32 };
33
34 static const struct mtk_gate eth_clks[] = {
35 GATE_ETH(CLK_ETH_HSDMA_EN, "eth_hsdma_en", "eth_sel", 5),
36 GATE_ETH(CLK_ETH_ESW_EN, "eth_esw_en", "eth_500m", 6),
37 GATE_ETH(CLK_ETH_GP2_EN, "eth_gp2_en", "txclk_src_pre", 7),
38 GATE_ETH(CLK_ETH_GP1_EN, "eth_gp1_en", "txclk_src_pre", 8),
39 GATE_ETH(CLK_ETH_GP0_EN, "eth_gp0_en", "txclk_src_pre", 9),
40 };
41
42 static const struct mtk_gate_regs sgmii_cg_regs = {
43 .set_ofs = 0xE4,
44 .clr_ofs = 0xE4,
45 .sta_ofs = 0xE4,
46 };
47
48 #define GATE_SGMII(_id, _name, _parent, _shift) { \
49 .id = _id, \
50 .name = _name, \
51 .parent_name = _parent, \
52 .regs = &sgmii_cg_regs, \
53 .shift = _shift, \
54 .ops = &mtk_clk_gate_ops_no_setclr_inv, \
55 }
56
57 static const struct mtk_gate sgmii_clks[] = {
58 GATE_SGMII(CLK_SGMII_TX250M_EN, "sgmii_tx250m_en",
59 "ssusb_tx250m", 2),
60 GATE_SGMII(CLK_SGMII_RX250M_EN, "sgmii_rx250m_en",
61 "ssusb_eq_rx250m", 3),
62 GATE_SGMII(CLK_SGMII_CDR_REF, "sgmii_cdr_ref",
63 "ssusb_cdr_ref", 4),
64 GATE_SGMII(CLK_SGMII_CDR_FB, "sgmii_cdr_fb",
65 "ssusb_cdr_fb", 5),
66 };
67
68 static int clk_mt7622_ethsys_init(struct platform_device *pdev)
69 {
70 struct clk_onecell_data *clk_data;
71 struct device_node *node = pdev->dev.of_node;
72 int r;
73
74 clk_data = mtk_alloc_clk_data(CLK_ETH_NR_CLK);
75
76 mtk_clk_register_gates(node, eth_clks, ARRAY_SIZE(eth_clks),
77 clk_data);
78
79 r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
80 if (r)
81 dev_err(&pdev->dev,
82 "could not register clock provider: %s: %d\n",
83 pdev->name, r);
84
85 mtk_register_reset_controller(node, 1, 0x34);
86
87 return r;
88 }
89
90 static int clk_mt7622_sgmiisys_init(struct platform_device *pdev)
91 {
92 struct clk_onecell_data *clk_data;
93 struct device_node *node = pdev->dev.of_node;
94 int r;
95
96 clk_data = mtk_alloc_clk_data(CLK_SGMII_NR_CLK);
97
98 mtk_clk_register_gates(node, sgmii_clks, ARRAY_SIZE(sgmii_clks),
99 clk_data);
100
101 r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
102 if (r)
103 dev_err(&pdev->dev,
104 "could not register clock provider: %s: %d\n",
105 pdev->name, r);
106
107 return r;
108 }
109
110 static const struct of_device_id of_match_clk_mt7622_eth[] = {
111 {
112 .compatible = "mediatek,mt7622-ethsys",
113 .data = clk_mt7622_ethsys_init,
114 }, {
115 .compatible = "mediatek,mt7622-sgmiisys",
116 .data = clk_mt7622_sgmiisys_init,
117 }, {
118
119 }
120 };
121
122 static int clk_mt7622_eth_probe(struct platform_device *pdev)
123 {
124 int (*clk_init)(struct platform_device *);
125 int r;
126
127 clk_init = of_device_get_match_data(&pdev->dev);
128 if (!clk_init)
129 return -EINVAL;
130
131 r = clk_init(pdev);
132 if (r)
133 dev_err(&pdev->dev,
134 "could not register clock provider: %s: %d\n",
135 pdev->name, r);
136
137 return r;
138 }
139
140 static struct platform_driver clk_mt7622_eth_drv = {
141 .probe = clk_mt7622_eth_probe,
142 .driver = {
143 .name = "clk-mt7622-eth",
144 .of_match_table = of_match_clk_mt7622_eth,
145 },
146 };
147
148 builtin_platform_driver(clk_mt7622_eth_drv);