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14#include <linux/clk.h>
15#include <linux/clk-provider.h>
16#include <linux/of_address.h>
17#include <linux/platform_device.h>
18#include <linux/reset.h>
19
20#include "ccu_common.h"
21#include "ccu_div.h"
22#include "ccu_gate.h"
23#include "ccu_reset.h"
24
25#include "ccu-sun9i-a80-de.h"
26
27static SUNXI_CCU_GATE(fe0_clk, "fe0", "fe0-div",
28 0x00, BIT(0), 0);
29static SUNXI_CCU_GATE(fe1_clk, "fe1", "fe1-div",
30 0x00, BIT(1), 0);
31static SUNXI_CCU_GATE(fe2_clk, "fe2", "fe2-div",
32 0x00, BIT(2), 0);
33static SUNXI_CCU_GATE(iep_deu0_clk, "iep-deu0", "de",
34 0x00, BIT(4), 0);
35static SUNXI_CCU_GATE(iep_deu1_clk, "iep-deu1", "de",
36 0x00, BIT(5), 0);
37static SUNXI_CCU_GATE(be0_clk, "be0", "be0-div",
38 0x00, BIT(8), 0);
39static SUNXI_CCU_GATE(be1_clk, "be1", "be1-div",
40 0x00, BIT(9), 0);
41static SUNXI_CCU_GATE(be2_clk, "be2", "be2-div",
42 0x00, BIT(10), 0);
43static SUNXI_CCU_GATE(iep_drc0_clk, "iep-drc0", "de",
44 0x00, BIT(12), 0);
45static SUNXI_CCU_GATE(iep_drc1_clk, "iep-drc1", "de",
46 0x00, BIT(13), 0);
47static SUNXI_CCU_GATE(merge_clk, "merge", "de",
48 0x00, BIT(20), 0);
49
50static SUNXI_CCU_GATE(dram_fe0_clk, "dram-fe0", "sdram",
51 0x04, BIT(0), 0);
52static SUNXI_CCU_GATE(dram_fe1_clk, "dram-fe1", "sdram",
53 0x04, BIT(1), 0);
54static SUNXI_CCU_GATE(dram_fe2_clk, "dram-fe2", "sdram",
55 0x04, BIT(2), 0);
56static SUNXI_CCU_GATE(dram_deu0_clk, "dram-deu0", "sdram",
57 0x04, BIT(4), 0);
58static SUNXI_CCU_GATE(dram_deu1_clk, "dram-deu1", "sdram",
59 0x04, BIT(5), 0);
60static SUNXI_CCU_GATE(dram_be0_clk, "dram-be0", "sdram",
61 0x04, BIT(8), 0);
62static SUNXI_CCU_GATE(dram_be1_clk, "dram-be1", "sdram",
63 0x04, BIT(9), 0);
64static SUNXI_CCU_GATE(dram_be2_clk, "dram-be2", "sdram",
65 0x04, BIT(10), 0);
66static SUNXI_CCU_GATE(dram_drc0_clk, "dram-drc0", "sdram",
67 0x04, BIT(12), 0);
68static SUNXI_CCU_GATE(dram_drc1_clk, "dram-drc1", "sdram",
69 0x04, BIT(13), 0);
70
71static SUNXI_CCU_GATE(bus_fe0_clk, "bus-fe0", "bus-de",
72 0x08, BIT(0), 0);
73static SUNXI_CCU_GATE(bus_fe1_clk, "bus-fe1", "bus-de",
74 0x08, BIT(1), 0);
75static SUNXI_CCU_GATE(bus_fe2_clk, "bus-fe2", "bus-de",
76 0x08, BIT(2), 0);
77static SUNXI_CCU_GATE(bus_deu0_clk, "bus-deu0", "bus-de",
78 0x08, BIT(4), 0);
79static SUNXI_CCU_GATE(bus_deu1_clk, "bus-deu1", "bus-de",
80 0x08, BIT(5), 0);
81static SUNXI_CCU_GATE(bus_be0_clk, "bus-be0", "bus-de",
82 0x08, BIT(8), 0);
83static SUNXI_CCU_GATE(bus_be1_clk, "bus-be1", "bus-de",
84 0x08, BIT(9), 0);
85static SUNXI_CCU_GATE(bus_be2_clk, "bus-be2", "bus-de",
86 0x08, BIT(10), 0);
87static SUNXI_CCU_GATE(bus_drc0_clk, "bus-drc0", "bus-de",
88 0x08, BIT(12), 0);
89static SUNXI_CCU_GATE(bus_drc1_clk, "bus-drc1", "bus-de",
90 0x08, BIT(13), 0);
91
92static SUNXI_CCU_M(fe0_div_clk, "fe0-div", "de", 0x20, 0, 4, 0);
93static SUNXI_CCU_M(fe1_div_clk, "fe1-div", "de", 0x20, 4, 4, 0);
94static SUNXI_CCU_M(fe2_div_clk, "fe2-div", "de", 0x20, 8, 4, 0);
95static SUNXI_CCU_M(be0_div_clk, "be0-div", "de", 0x20, 16, 4, 0);
96static SUNXI_CCU_M(be1_div_clk, "be1-div", "de", 0x20, 20, 4, 0);
97static SUNXI_CCU_M(be2_div_clk, "be2-div", "de", 0x20, 24, 4, 0);
98
99static struct ccu_common *sun9i_a80_de_clks[] = {
100 &fe0_clk.common,
101 &fe1_clk.common,
102 &fe2_clk.common,
103 &iep_deu0_clk.common,
104 &iep_deu1_clk.common,
105 &be0_clk.common,
106 &be1_clk.common,
107 &be2_clk.common,
108 &iep_drc0_clk.common,
109 &iep_drc1_clk.common,
110 &merge_clk.common,
111
112 &dram_fe0_clk.common,
113 &dram_fe1_clk.common,
114 &dram_fe2_clk.common,
115 &dram_deu0_clk.common,
116 &dram_deu1_clk.common,
117 &dram_be0_clk.common,
118 &dram_be1_clk.common,
119 &dram_be2_clk.common,
120 &dram_drc0_clk.common,
121 &dram_drc1_clk.common,
122
123 &bus_fe0_clk.common,
124 &bus_fe1_clk.common,
125 &bus_fe2_clk.common,
126 &bus_deu0_clk.common,
127 &bus_deu1_clk.common,
128 &bus_be0_clk.common,
129 &bus_be1_clk.common,
130 &bus_be2_clk.common,
131 &bus_drc0_clk.common,
132 &bus_drc1_clk.common,
133
134 &fe0_div_clk.common,
135 &fe1_div_clk.common,
136 &fe2_div_clk.common,
137 &be0_div_clk.common,
138 &be1_div_clk.common,
139 &be2_div_clk.common,
140};
141
142static struct clk_hw_onecell_data sun9i_a80_de_hw_clks = {
143 .hws = {
144 [CLK_FE0] = &fe0_clk.common.hw,
145 [CLK_FE1] = &fe1_clk.common.hw,
146 [CLK_FE2] = &fe2_clk.common.hw,
147 [CLK_IEP_DEU0] = &iep_deu0_clk.common.hw,
148 [CLK_IEP_DEU1] = &iep_deu1_clk.common.hw,
149 [CLK_BE0] = &be0_clk.common.hw,
150 [CLK_BE1] = &be1_clk.common.hw,
151 [CLK_BE2] = &be2_clk.common.hw,
152 [CLK_IEP_DRC0] = &iep_drc0_clk.common.hw,
153 [CLK_IEP_DRC1] = &iep_drc1_clk.common.hw,
154 [CLK_MERGE] = &merge_clk.common.hw,
155
156 [CLK_DRAM_FE0] = &dram_fe0_clk.common.hw,
157 [CLK_DRAM_FE1] = &dram_fe1_clk.common.hw,
158 [CLK_DRAM_FE2] = &dram_fe2_clk.common.hw,
159 [CLK_DRAM_DEU0] = &dram_deu0_clk.common.hw,
160 [CLK_DRAM_DEU1] = &dram_deu1_clk.common.hw,
161 [CLK_DRAM_BE0] = &dram_be0_clk.common.hw,
162 [CLK_DRAM_BE1] = &dram_be1_clk.common.hw,
163 [CLK_DRAM_BE2] = &dram_be2_clk.common.hw,
164 [CLK_DRAM_DRC0] = &dram_drc0_clk.common.hw,
165 [CLK_DRAM_DRC1] = &dram_drc1_clk.common.hw,
166
167 [CLK_BUS_FE0] = &bus_fe0_clk.common.hw,
168 [CLK_BUS_FE1] = &bus_fe1_clk.common.hw,
169 [CLK_BUS_FE2] = &bus_fe2_clk.common.hw,
170 [CLK_BUS_DEU0] = &bus_deu0_clk.common.hw,
171 [CLK_BUS_DEU1] = &bus_deu1_clk.common.hw,
172 [CLK_BUS_BE0] = &bus_be0_clk.common.hw,
173 [CLK_BUS_BE1] = &bus_be1_clk.common.hw,
174 [CLK_BUS_BE2] = &bus_be2_clk.common.hw,
175 [CLK_BUS_DRC0] = &bus_drc0_clk.common.hw,
176 [CLK_BUS_DRC1] = &bus_drc1_clk.common.hw,
177
178 [CLK_FE0_DIV] = &fe0_div_clk.common.hw,
179 [CLK_FE1_DIV] = &fe1_div_clk.common.hw,
180 [CLK_FE2_DIV] = &fe2_div_clk.common.hw,
181 [CLK_BE0_DIV] = &be0_div_clk.common.hw,
182 [CLK_BE1_DIV] = &be1_div_clk.common.hw,
183 [CLK_BE2_DIV] = &be2_div_clk.common.hw,
184 },
185 .num = CLK_NUMBER,
186};
187
188static struct ccu_reset_map sun9i_a80_de_resets[] = {
189 [RST_FE0] = { 0x0c, BIT(0) },
190 [RST_FE1] = { 0x0c, BIT(1) },
191 [RST_FE2] = { 0x0c, BIT(2) },
192 [RST_DEU0] = { 0x0c, BIT(4) },
193 [RST_DEU1] = { 0x0c, BIT(5) },
194 [RST_BE0] = { 0x0c, BIT(8) },
195 [RST_BE1] = { 0x0c, BIT(9) },
196 [RST_BE2] = { 0x0c, BIT(10) },
197 [RST_DRC0] = { 0x0c, BIT(12) },
198 [RST_DRC1] = { 0x0c, BIT(13) },
199 [RST_MERGE] = { 0x0c, BIT(20) },
200};
201
202static const struct sunxi_ccu_desc sun9i_a80_de_clk_desc = {
203 .ccu_clks = sun9i_a80_de_clks,
204 .num_ccu_clks = ARRAY_SIZE(sun9i_a80_de_clks),
205
206 .hw_clks = &sun9i_a80_de_hw_clks,
207
208 .resets = sun9i_a80_de_resets,
209 .num_resets = ARRAY_SIZE(sun9i_a80_de_resets),
210};
211
212static int sun9i_a80_de_clk_probe(struct platform_device *pdev)
213{
214 struct resource *res;
215 struct clk *bus_clk;
216 struct reset_control *rstc;
217 void __iomem *reg;
218 int ret;
219
220 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
221 reg = devm_ioremap_resource(&pdev->dev, res);
222 if (IS_ERR(reg))
223 return PTR_ERR(reg);
224
225 bus_clk = devm_clk_get(&pdev->dev, "bus");
226 if (IS_ERR(bus_clk)) {
227 ret = PTR_ERR(bus_clk);
228 if (ret != -EPROBE_DEFER)
229 dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
230 return ret;
231 }
232
233 rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
234 if (IS_ERR(rstc)) {
235 ret = PTR_ERR(rstc);
236 if (ret != -EPROBE_DEFER)
237 dev_err(&pdev->dev,
238 "Couldn't get reset control: %d\n", ret);
239 return ret;
240 }
241
242
243 ret = clk_prepare_enable(bus_clk);
244 if (ret) {
245 dev_err(&pdev->dev, "Couldn't enable bus clk: %d\n", ret);
246 return ret;
247 }
248
249
250 ret = reset_control_deassert(rstc);
251 if (ret) {
252 dev_err(&pdev->dev,
253 "Couldn't deassert reset control: %d\n", ret);
254 goto err_disable_clk;
255 }
256
257 ret = sunxi_ccu_probe(pdev->dev.of_node, reg,
258 &sun9i_a80_de_clk_desc);
259 if (ret)
260 goto err_assert_reset;
261
262 return 0;
263
264err_assert_reset:
265 reset_control_assert(rstc);
266err_disable_clk:
267 clk_disable_unprepare(bus_clk);
268 return ret;
269}
270
271static const struct of_device_id sun9i_a80_de_clk_ids[] = {
272 { .compatible = "allwinner,sun9i-a80-de-clks" },
273 { }
274};
275
276static struct platform_driver sun9i_a80_de_clk_driver = {
277 .probe = sun9i_a80_de_clk_probe,
278 .driver = {
279 .name = "sun9i-a80-de-clks",
280 .of_match_table = sun9i_a80_de_clk_ids,
281 },
282};
283builtin_platform_driver(sun9i_a80_de_clk_driver);
284
