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