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/sun50i-h6-ccu.h>
13 #include <dt-bindings/reset/sun50i-h6-ccu.h>
14
15 static struct ccu_clk_gate h6_gates[] = {
16 [CLK_BUS_MMC0] = GATE(0x84c, BIT(0)),
17 [CLK_BUS_MMC1] = GATE(0x84c, BIT(1)),
18 [CLK_BUS_MMC2] = GATE(0x84c, BIT(2)),
19 [CLK_BUS_UART0] = GATE(0x90c, BIT(0)),
20 [CLK_BUS_UART1] = GATE(0x90c, BIT(1)),
21 [CLK_BUS_UART2] = GATE(0x90c, BIT(2)),
22 [CLK_BUS_UART3] = GATE(0x90c, BIT(3)),
23
24 [CLK_SPI0] = GATE(0x940, BIT(31)),
25 [CLK_SPI1] = GATE(0x944, BIT(31)),
26
27 [CLK_BUS_SPI0] = GATE(0x96c, BIT(0)),
28 [CLK_BUS_SPI1] = GATE(0x96c, BIT(1)),
29
30 [CLK_BUS_EMAC] = GATE(0x97c, BIT(0)),
31 };
32
33 static struct ccu_reset h6_resets[] = {
34 [RST_BUS_MMC0] = RESET(0x84c, BIT(16)),
35 [RST_BUS_MMC1] = RESET(0x84c, BIT(17)),
36 [RST_BUS_MMC2] = RESET(0x84c, BIT(18)),
37 [RST_BUS_UART0] = RESET(0x90c, BIT(16)),
38 [RST_BUS_UART1] = RESET(0x90c, BIT(17)),
39 [RST_BUS_UART2] = RESET(0x90c, BIT(18)),
40 [RST_BUS_UART3] = RESET(0x90c, BIT(19)),
41
42 [RST_BUS_SPI0] = RESET(0x96c, BIT(16)),
43 [RST_BUS_SPI1] = RESET(0x96c, BIT(17)),
44
45 [RST_BUS_EMAC] = RESET(0x97c, BIT(16)),
46 };
47
48 static const struct ccu_desc h6_ccu_desc = {
49 .gates = h6_gates,
50 .resets = h6_resets,
51 };
52
h6_clk_bind(struct udevice * dev)53 static int h6_clk_bind(struct udevice *dev)
54 {
55 return sunxi_reset_bind(dev, ARRAY_SIZE(h6_resets));
56 }
57
58 static const struct udevice_id h6_ccu_ids[] = {
59 { .compatible = "allwinner,sun50i-h6-ccu",
60 .data = (ulong)&h6_ccu_desc },
61 { }
62 };
63
64 U_BOOT_DRIVER(clk_sun50i_h6) = {
65 .name = "sun50i_h6_ccu",
66 .id = UCLASS_CLK,
67 .of_match = h6_ccu_ids,
68 .priv_auto_alloc_size = sizeof(struct ccu_priv),
69 .ops = &sunxi_clk_ops,
70 .probe = sunxi_clk_probe,
71 .bind = h6_clk_bind,
72 };
73