19c92ab61SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
2439b65c4SChen-Yu Tsai /*
3439b65c4SChen-Yu Tsai * Copyright (c) 2016 Chen-Yu Tsai. All rights reserved.
4439b65c4SChen-Yu Tsai */
5439b65c4SChen-Yu Tsai
6439b65c4SChen-Yu Tsai #include <linux/clk.h>
7439b65c4SChen-Yu Tsai #include <linux/clk-provider.h>
8c8c525b0SSamuel Holland #include <linux/module.h>
9439b65c4SChen-Yu Tsai #include <linux/platform_device.h>
10439b65c4SChen-Yu Tsai
11439b65c4SChen-Yu Tsai #include "ccu_common.h"
12439b65c4SChen-Yu Tsai #include "ccu_gate.h"
13439b65c4SChen-Yu Tsai #include "ccu_reset.h"
14439b65c4SChen-Yu Tsai
15439b65c4SChen-Yu Tsai #include "ccu-sun9i-a80-usb.h"
16439b65c4SChen-Yu Tsai
174b889151SChen-Yu Tsai static const struct clk_parent_data clk_parent_hosc[] = {
184b889151SChen-Yu Tsai { .fw_name = "hosc" },
194b889151SChen-Yu Tsai };
20439b65c4SChen-Yu Tsai
214b889151SChen-Yu Tsai static const struct clk_parent_data clk_parent_bus[] = {
224b889151SChen-Yu Tsai { .fw_name = "bus" },
234b889151SChen-Yu Tsai };
244b889151SChen-Yu Tsai
254b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(bus_hci0_clk, "bus-hci0", clk_parent_bus, 0x0, BIT(1), 0);
264b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb_ohci0_clk, "usb-ohci0", clk_parent_hosc, 0x0, BIT(2), 0);
274b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(bus_hci1_clk, "bus-hci1", clk_parent_bus, 0x0, BIT(3), 0);
284b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(bus_hci2_clk, "bus-hci2", clk_parent_bus, 0x0, BIT(5), 0);
294b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb_ohci2_clk, "usb-ohci2", clk_parent_hosc, 0x0, BIT(6), 0);
304b889151SChen-Yu Tsai
314b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb0_phy_clk, "usb0-phy", clk_parent_hosc, 0x4, BIT(1), 0);
324b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb1_hsic_clk, "usb1-hsic", clk_parent_hosc, 0x4, BIT(2), 0);
334b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb1_phy_clk, "usb1-phy", clk_parent_hosc, 0x4, BIT(3), 0);
344b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb2_hsic_clk, "usb2-hsic", clk_parent_hosc, 0x4, BIT(4), 0);
354b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb2_phy_clk, "usb2-phy", clk_parent_hosc, 0x4, BIT(5), 0);
364b889151SChen-Yu Tsai static SUNXI_CCU_GATE_DATA(usb_hsic_clk, "usb-hsic", clk_parent_hosc, 0x4, BIT(10), 0);
37439b65c4SChen-Yu Tsai
38439b65c4SChen-Yu Tsai static struct ccu_common *sun9i_a80_usb_clks[] = {
39439b65c4SChen-Yu Tsai &bus_hci0_clk.common,
40439b65c4SChen-Yu Tsai &usb_ohci0_clk.common,
41439b65c4SChen-Yu Tsai &bus_hci1_clk.common,
42439b65c4SChen-Yu Tsai &bus_hci2_clk.common,
43439b65c4SChen-Yu Tsai &usb_ohci2_clk.common,
44439b65c4SChen-Yu Tsai
45439b65c4SChen-Yu Tsai &usb0_phy_clk.common,
46439b65c4SChen-Yu Tsai &usb1_hsic_clk.common,
47439b65c4SChen-Yu Tsai &usb1_phy_clk.common,
48439b65c4SChen-Yu Tsai &usb2_hsic_clk.common,
49439b65c4SChen-Yu Tsai &usb2_phy_clk.common,
50439b65c4SChen-Yu Tsai &usb_hsic_clk.common,
51439b65c4SChen-Yu Tsai };
52439b65c4SChen-Yu Tsai
53439b65c4SChen-Yu Tsai static struct clk_hw_onecell_data sun9i_a80_usb_hw_clks = {
54439b65c4SChen-Yu Tsai .hws = {
55439b65c4SChen-Yu Tsai [CLK_BUS_HCI0] = &bus_hci0_clk.common.hw,
56439b65c4SChen-Yu Tsai [CLK_USB_OHCI0] = &usb_ohci0_clk.common.hw,
57439b65c4SChen-Yu Tsai [CLK_BUS_HCI1] = &bus_hci1_clk.common.hw,
58439b65c4SChen-Yu Tsai [CLK_BUS_HCI2] = &bus_hci2_clk.common.hw,
59439b65c4SChen-Yu Tsai [CLK_USB_OHCI2] = &usb_ohci2_clk.common.hw,
60439b65c4SChen-Yu Tsai
61439b65c4SChen-Yu Tsai [CLK_USB0_PHY] = &usb0_phy_clk.common.hw,
62439b65c4SChen-Yu Tsai [CLK_USB1_HSIC] = &usb1_hsic_clk.common.hw,
63439b65c4SChen-Yu Tsai [CLK_USB1_PHY] = &usb1_phy_clk.common.hw,
64439b65c4SChen-Yu Tsai [CLK_USB2_HSIC] = &usb2_hsic_clk.common.hw,
65439b65c4SChen-Yu Tsai [CLK_USB2_PHY] = &usb2_phy_clk.common.hw,
66439b65c4SChen-Yu Tsai [CLK_USB_HSIC] = &usb_hsic_clk.common.hw,
67439b65c4SChen-Yu Tsai },
68439b65c4SChen-Yu Tsai .num = CLK_NUMBER,
69439b65c4SChen-Yu Tsai };
70439b65c4SChen-Yu Tsai
71439b65c4SChen-Yu Tsai static struct ccu_reset_map sun9i_a80_usb_resets[] = {
72439b65c4SChen-Yu Tsai [RST_USB0_HCI] = { 0x0, BIT(17) },
73439b65c4SChen-Yu Tsai [RST_USB1_HCI] = { 0x0, BIT(18) },
74439b65c4SChen-Yu Tsai [RST_USB2_HCI] = { 0x0, BIT(19) },
75439b65c4SChen-Yu Tsai
76439b65c4SChen-Yu Tsai [RST_USB0_PHY] = { 0x4, BIT(17) },
77439b65c4SChen-Yu Tsai [RST_USB1_HSIC] = { 0x4, BIT(18) },
78439b65c4SChen-Yu Tsai [RST_USB1_PHY] = { 0x4, BIT(19) },
79439b65c4SChen-Yu Tsai [RST_USB2_HSIC] = { 0x4, BIT(20) },
80439b65c4SChen-Yu Tsai [RST_USB2_PHY] = { 0x4, BIT(21) },
81439b65c4SChen-Yu Tsai };
82439b65c4SChen-Yu Tsai
83439b65c4SChen-Yu Tsai static const struct sunxi_ccu_desc sun9i_a80_usb_clk_desc = {
84439b65c4SChen-Yu Tsai .ccu_clks = sun9i_a80_usb_clks,
85439b65c4SChen-Yu Tsai .num_ccu_clks = ARRAY_SIZE(sun9i_a80_usb_clks),
86439b65c4SChen-Yu Tsai
87439b65c4SChen-Yu Tsai .hw_clks = &sun9i_a80_usb_hw_clks,
88439b65c4SChen-Yu Tsai
89439b65c4SChen-Yu Tsai .resets = sun9i_a80_usb_resets,
90439b65c4SChen-Yu Tsai .num_resets = ARRAY_SIZE(sun9i_a80_usb_resets),
91439b65c4SChen-Yu Tsai };
92439b65c4SChen-Yu Tsai
sun9i_a80_usb_clk_probe(struct platform_device * pdev)93439b65c4SChen-Yu Tsai static int sun9i_a80_usb_clk_probe(struct platform_device *pdev)
94439b65c4SChen-Yu Tsai {
95439b65c4SChen-Yu Tsai struct clk *bus_clk;
96439b65c4SChen-Yu Tsai void __iomem *reg;
97439b65c4SChen-Yu Tsai int ret;
98439b65c4SChen-Yu Tsai
992dcfd031SCai Huoqing reg = devm_platform_ioremap_resource(pdev, 0);
100439b65c4SChen-Yu Tsai if (IS_ERR(reg))
101439b65c4SChen-Yu Tsai return PTR_ERR(reg);
102439b65c4SChen-Yu Tsai
103439b65c4SChen-Yu Tsai bus_clk = devm_clk_get(&pdev->dev, "bus");
104*6a643448SYang Yingliang if (IS_ERR(bus_clk))
105*6a643448SYang Yingliang return dev_err_probe(&pdev->dev, PTR_ERR(bus_clk),
106*6a643448SYang Yingliang "Couldn't get bus clk\n");
107439b65c4SChen-Yu Tsai
108439b65c4SChen-Yu Tsai /* The bus clock needs to be enabled for us to access the registers */
109439b65c4SChen-Yu Tsai ret = clk_prepare_enable(bus_clk);
110439b65c4SChen-Yu Tsai if (ret) {
111439b65c4SChen-Yu Tsai dev_err(&pdev->dev, "Couldn't enable bus clk: %d\n", ret);
112439b65c4SChen-Yu Tsai return ret;
113439b65c4SChen-Yu Tsai }
114439b65c4SChen-Yu Tsai
1159bec2b9cSSamuel Holland ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun9i_a80_usb_clk_desc);
116439b65c4SChen-Yu Tsai if (ret)
117439b65c4SChen-Yu Tsai goto err_disable_clk;
118439b65c4SChen-Yu Tsai
119439b65c4SChen-Yu Tsai return 0;
120439b65c4SChen-Yu Tsai
121439b65c4SChen-Yu Tsai err_disable_clk:
122439b65c4SChen-Yu Tsai clk_disable_unprepare(bus_clk);
123439b65c4SChen-Yu Tsai return ret;
124439b65c4SChen-Yu Tsai }
125439b65c4SChen-Yu Tsai
126439b65c4SChen-Yu Tsai static const struct of_device_id sun9i_a80_usb_clk_ids[] = {
127439b65c4SChen-Yu Tsai { .compatible = "allwinner,sun9i-a80-usb-clks" },
128439b65c4SChen-Yu Tsai { }
129439b65c4SChen-Yu Tsai };
130439b65c4SChen-Yu Tsai
131439b65c4SChen-Yu Tsai static struct platform_driver sun9i_a80_usb_clk_driver = {
132439b65c4SChen-Yu Tsai .probe = sun9i_a80_usb_clk_probe,
133439b65c4SChen-Yu Tsai .driver = {
134439b65c4SChen-Yu Tsai .name = "sun9i-a80-usb-clks",
135439b65c4SChen-Yu Tsai .of_match_table = sun9i_a80_usb_clk_ids,
136439b65c4SChen-Yu Tsai },
137439b65c4SChen-Yu Tsai };
138c8c525b0SSamuel Holland module_platform_driver(sun9i_a80_usb_clk_driver);
139c8c525b0SSamuel Holland
140c8c525b0SSamuel Holland MODULE_IMPORT_NS(SUNXI_CCU);
141c8c525b0SSamuel Holland MODULE_LICENSE("GPL");
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