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/sun5i-ccu.h>
13 #include <dt-bindings/reset/sun5i-ccu.h>
14 #include <linux/bitops.h>
15
16 static struct ccu_clk_gate a10s_gates[] = {
17 [CLK_AHB_OTG] = GATE(0x060, BIT(0)),
18 [CLK_AHB_EHCI] = GATE(0x060, BIT(1)),
19 [CLK_AHB_OHCI] = GATE(0x060, BIT(2)),
20 [CLK_AHB_MMC0] = GATE(0x060, BIT(8)),
21 [CLK_AHB_MMC1] = GATE(0x060, BIT(9)),
22 [CLK_AHB_MMC2] = GATE(0x060, BIT(10)),
23 [CLK_AHB_EMAC] = GATE(0x060, BIT(17)),
24 [CLK_AHB_SPI0] = GATE(0x060, BIT(20)),
25 [CLK_AHB_SPI1] = GATE(0x060, BIT(21)),
26 [CLK_AHB_SPI2] = GATE(0x060, BIT(22)),
27
28 [CLK_APB1_UART0] = GATE(0x06c, BIT(16)),
29 [CLK_APB1_UART1] = GATE(0x06c, BIT(17)),
30 [CLK_APB1_UART2] = GATE(0x06c, BIT(18)),
31 [CLK_APB1_UART3] = GATE(0x06c, BIT(19)),
32
33 [CLK_SPI0] = GATE(0x0a0, BIT(31)),
34 [CLK_SPI1] = GATE(0x0a4, BIT(31)),
35 [CLK_SPI2] = GATE(0x0a8, BIT(31)),
36
37 [CLK_USB_OHCI] = GATE(0x0cc, BIT(6)),
38 [CLK_USB_PHY0] = GATE(0x0cc, BIT(8)),
39 [CLK_USB_PHY1] = GATE(0x0cc, BIT(9)),
40 };
41
42 static struct ccu_reset a10s_resets[] = {
43 [RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
44 [RST_USB_PHY1] = RESET(0x0cc, BIT(1)),
45 };
46
47 static const struct ccu_desc a10s_ccu_desc = {
48 .gates = a10s_gates,
49 .resets = a10s_resets,
50 };
51
a10s_clk_bind(struct udevice * dev)52 static int a10s_clk_bind(struct udevice *dev)
53 {
54 return sunxi_reset_bind(dev, ARRAY_SIZE(a10s_resets));
55 }
56
57 static const struct udevice_id a10s_ccu_ids[] = {
58 { .compatible = "allwinner,sun5i-a10s-ccu",
59 .data = (ulong)&a10s_ccu_desc },
60 { .compatible = "allwinner,sun5i-a13-ccu",
61 .data = (ulong)&a10s_ccu_desc },
62 { }
63 };
64
65 U_BOOT_DRIVER(clk_sun5i_a10s) = {
66 .name = "sun5i_a10s_ccu",
67 .id = UCLASS_CLK,
68 .of_match = a10s_ccu_ids,
69 .priv_auto = sizeof(struct ccu_priv),
70 .ops = &sunxi_clk_ops,
71 .probe = sunxi_clk_probe,
72 .bind = a10s_clk_bind,
73 };
74