1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Copyright (C) 2018 Amarula Solutions.
4 * Author: Jagan Teki <jagan@amarulasolutions.com>
5 */
6
7 #include <common.h>
8 #include <clk-uclass.h>
9 #include <dm.h>
10 #include <errno.h>
11 #include <asm/arch/ccu.h>
12 #include <dt-bindings/clock/sun8i-v3s-ccu.h>
13 #include <dt-bindings/reset/sun8i-v3s-ccu.h>
14 #include <linux/bitops.h>
15
16 static struct ccu_clk_gate v3s_gates[] = {
17 [CLK_BUS_MMC0] = GATE(0x060, BIT(8)),
18 [CLK_BUS_MMC1] = GATE(0x060, BIT(9)),
19 [CLK_BUS_MMC2] = GATE(0x060, BIT(10)),
20 [CLK_BUS_SPI0] = GATE(0x060, BIT(20)),
21 [CLK_BUS_OTG] = GATE(0x060, BIT(24)),
22
23 [CLK_BUS_UART0] = GATE(0x06c, BIT(16)),
24 [CLK_BUS_UART1] = GATE(0x06c, BIT(17)),
25 [CLK_BUS_UART2] = GATE(0x06c, BIT(18)),
26
27 [CLK_SPI0] = GATE(0x0a0, BIT(31)),
28
29 [CLK_USB_PHY0] = GATE(0x0cc, BIT(8)),
30 };
31
32 static struct ccu_reset v3s_resets[] = {
33 [RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
34
35 [RST_BUS_MMC0] = RESET(0x2c0, BIT(8)),
36 [RST_BUS_MMC1] = RESET(0x2c0, BIT(9)),
37 [RST_BUS_MMC2] = RESET(0x2c0, BIT(10)),
38 [RST_BUS_SPI0] = RESET(0x2c0, BIT(20)),
39 [RST_BUS_OTG] = RESET(0x2c0, BIT(24)),
40
41 [RST_BUS_UART0] = RESET(0x2d8, BIT(16)),
42 [RST_BUS_UART1] = RESET(0x2d8, BIT(17)),
43 [RST_BUS_UART2] = RESET(0x2d8, BIT(18)),
44 };
45
46 static const struct ccu_desc v3s_ccu_desc = {
47 .gates = v3s_gates,
48 .resets = v3s_resets,
49 };
50
v3s_clk_bind(struct udevice * dev)51 static int v3s_clk_bind(struct udevice *dev)
52 {
53 return sunxi_reset_bind(dev, ARRAY_SIZE(v3s_resets));
54 }
55
56 static const struct udevice_id v3s_clk_ids[] = {
57 { .compatible = "allwinner,sun8i-v3s-ccu",
58 .data = (ulong)&v3s_ccu_desc },
59 { .compatible = "allwinner,sun8i-v3-ccu",
60 .data = (ulong)&v3s_ccu_desc },
61 { }
62 };
63
64 U_BOOT_DRIVER(clk_sun8i_v3s) = {
65 .name = "sun8i_v3s_ccu",
66 .id = UCLASS_CLK,
67 .of_match = v3s_clk_ids,
68 .priv_auto = sizeof(struct ccu_priv),
69 .ops = &sunxi_clk_ops,
70 .probe = sunxi_clk_probe,
71 .bind = v3s_clk_bind,
72 };
73