xref: /openbmc/u-boot/drivers/clk/sunxi/clk_a10s.c (revision 821aa191)
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 
15 static struct ccu_clk_gate a10s_gates[] = {
16 	[CLK_AHB_OTG]		= GATE(0x060, BIT(0)),
17 	[CLK_AHB_EHCI]		= GATE(0x060, BIT(1)),
18 	[CLK_AHB_OHCI]		= GATE(0x060, BIT(2)),
19 	[CLK_AHB_MMC0]		= GATE(0x060, BIT(8)),
20 	[CLK_AHB_MMC1]		= GATE(0x060, BIT(9)),
21 	[CLK_AHB_MMC2]		= GATE(0x060, BIT(10)),
22 	[CLK_AHB_EMAC]		= GATE(0x060, BIT(17)),
23 	[CLK_AHB_SPI0]		= GATE(0x060, BIT(20)),
24 	[CLK_AHB_SPI1]		= GATE(0x060, BIT(21)),
25 	[CLK_AHB_SPI2]		= GATE(0x060, BIT(22)),
26 
27 	[CLK_APB1_UART0]	= GATE(0x06c, BIT(16)),
28 	[CLK_APB1_UART1]	= GATE(0x06c, BIT(17)),
29 	[CLK_APB1_UART2]	= GATE(0x06c, BIT(18)),
30 	[CLK_APB1_UART3]	= GATE(0x06c, BIT(19)),
31 
32 	[CLK_SPI0]		= GATE(0x0a0, BIT(31)),
33 	[CLK_SPI1]		= GATE(0x0a4, BIT(31)),
34 	[CLK_SPI2]		= GATE(0x0a8, BIT(31)),
35 
36 	[CLK_USB_OHCI]		= GATE(0x0cc, BIT(6)),
37 	[CLK_USB_PHY0]		= GATE(0x0cc, BIT(8)),
38 	[CLK_USB_PHY1]		= GATE(0x0cc, BIT(9)),
39 };
40 
41 static struct ccu_reset a10s_resets[] = {
42 	[RST_USB_PHY0]		= RESET(0x0cc, BIT(0)),
43 	[RST_USB_PHY1]		= RESET(0x0cc, BIT(1)),
44 };
45 
46 static const struct ccu_desc a10s_ccu_desc = {
47 	.gates = a10s_gates,
48 	.resets = a10s_resets,
49 };
50 
a10s_clk_bind(struct udevice * dev)51 static int a10s_clk_bind(struct udevice *dev)
52 {
53 	return sunxi_reset_bind(dev, ARRAY_SIZE(a10s_resets));
54 }
55 
56 static const struct udevice_id a10s_ccu_ids[] = {
57 	{ .compatible = "allwinner,sun5i-a10s-ccu",
58 	  .data = (ulong)&a10s_ccu_desc },
59 	{ .compatible = "allwinner,sun5i-a13-ccu",
60 	  .data = (ulong)&a10s_ccu_desc },
61 	{ }
62 };
63 
64 U_BOOT_DRIVER(clk_sun5i_a10s) = {
65 	.name		= "sun5i_a10s_ccu",
66 	.id		= UCLASS_CLK,
67 	.of_match	= a10s_ccu_ids,
68 	.priv_auto_alloc_size	= sizeof(struct ccu_priv),
69 	.ops		= &sunxi_clk_ops,
70 	.probe		= sunxi_clk_probe,
71 	.bind		= a10s_clk_bind,
72 };
73