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/sun4i-a10-ccu.h>
13 #include <dt-bindings/reset/sun4i-a10-ccu.h>
14 #include <linux/bitops.h>
15
16 static struct ccu_clk_gate a10_gates[] = {
17 [CLK_AHB_OTG] = GATE(0x060, BIT(0)),
18 [CLK_AHB_EHCI0] = GATE(0x060, BIT(1)),
19 [CLK_AHB_OHCI0] = GATE(0x060, BIT(2)),
20 [CLK_AHB_EHCI1] = GATE(0x060, BIT(3)),
21 [CLK_AHB_OHCI1] = GATE(0x060, BIT(4)),
22 [CLK_AHB_MMC0] = GATE(0x060, BIT(8)),
23 [CLK_AHB_MMC1] = GATE(0x060, BIT(9)),
24 [CLK_AHB_MMC2] = GATE(0x060, BIT(10)),
25 [CLK_AHB_MMC3] = GATE(0x060, BIT(11)),
26 [CLK_AHB_EMAC] = GATE(0x060, BIT(17)),
27 [CLK_AHB_SPI0] = GATE(0x060, BIT(20)),
28 [CLK_AHB_SPI1] = GATE(0x060, BIT(21)),
29 [CLK_AHB_SPI2] = GATE(0x060, BIT(22)),
30 [CLK_AHB_SPI3] = GATE(0x060, BIT(23)),
31
32 [CLK_AHB_GMAC] = GATE(0x064, BIT(17)),
33
34 [CLK_APB1_UART0] = GATE(0x06c, BIT(16)),
35 [CLK_APB1_UART1] = GATE(0x06c, BIT(17)),
36 [CLK_APB1_UART2] = GATE(0x06c, BIT(18)),
37 [CLK_APB1_UART3] = GATE(0x06c, BIT(19)),
38 [CLK_APB1_UART4] = GATE(0x06c, BIT(20)),
39 [CLK_APB1_UART5] = GATE(0x06c, BIT(21)),
40 [CLK_APB1_UART6] = GATE(0x06c, BIT(22)),
41 [CLK_APB1_UART7] = GATE(0x06c, BIT(23)),
42
43 [CLK_SPI0] = GATE(0x0a0, BIT(31)),
44 [CLK_SPI1] = GATE(0x0a4, BIT(31)),
45 [CLK_SPI2] = GATE(0x0a8, BIT(31)),
46
47 [CLK_USB_OHCI0] = GATE(0x0cc, BIT(6)),
48 [CLK_USB_OHCI1] = GATE(0x0cc, BIT(7)),
49 [CLK_USB_PHY] = GATE(0x0cc, BIT(8)),
50
51 [CLK_SPI3] = GATE(0x0d4, BIT(31)),
52 };
53
54 static struct ccu_reset a10_resets[] = {
55 [RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
56 [RST_USB_PHY1] = RESET(0x0cc, BIT(1)),
57 [RST_USB_PHY2] = RESET(0x0cc, BIT(2)),
58 };
59
60 static const struct ccu_desc a10_ccu_desc = {
61 .gates = a10_gates,
62 .resets = a10_resets,
63 };
64
a10_clk_bind(struct udevice * dev)65 static int a10_clk_bind(struct udevice *dev)
66 {
67 return sunxi_reset_bind(dev, ARRAY_SIZE(a10_resets));
68 }
69
70 static const struct udevice_id a10_ccu_ids[] = {
71 { .compatible = "allwinner,sun4i-a10-ccu",
72 .data = (ulong)&a10_ccu_desc },
73 { .compatible = "allwinner,sun7i-a20-ccu",
74 .data = (ulong)&a10_ccu_desc },
75 { }
76 };
77
78 U_BOOT_DRIVER(clk_sun4i_a10) = {
79 .name = "sun4i_a10_ccu",
80 .id = UCLASS_CLK,
81 .of_match = a10_ccu_ids,
82 .priv_auto = sizeof(struct ccu_priv),
83 .ops = &sunxi_clk_ops,
84 .probe = sunxi_clk_probe,
85 .bind = a10_clk_bind,
86 };
87