1// SPDX-License-Identifier: GPL-2.0
2/*
3 * DA8xx USB
4 */
5#include <linux/clk-provider.h>
6#include <linux/delay.h>
7#include <linux/dma-mapping.h>
8#include <linux/init.h>
9#include <linux/mfd/da8xx-cfgchip.h>
10#include <linux/mfd/syscon.h>
11#include <linux/phy/phy.h>
12#include <linux/platform_data/clk-da8xx-cfgchip.h>
13#include <linux/platform_data/phy-da8xx-usb.h>
14#include <linux/platform_data/usb-davinci.h>
15#include <linux/platform_device.h>
16#include <linux/usb/musb.h>
17
18#include <mach/common.h>
19#include <mach/cputype.h>
20#include <mach/da8xx.h>
21
22#include "irqs.h"
23
24#define DA8XX_USB0_BASE		0x01e00000
25#define DA8XX_USB1_BASE		0x01e25000
26
27#ifndef CONFIG_COMMON_CLK
28static struct clk *usb20_clk;
29#endif
30
31static struct da8xx_usb_phy_platform_data da8xx_usb_phy_pdata;
32
33static struct platform_device da8xx_usb_phy = {
34	.name		= "da8xx-usb-phy",
35	.id		= -1,
36	.dev		= {
37		/*
38		 * Setting init_name so that clock lookup will work in
39		 * da8xx_register_usb11_phy_clk() even if this device is not
40		 * registered yet.
41		 */
42		.init_name	= "da8xx-usb-phy",
43		.platform_data	= &da8xx_usb_phy_pdata,
44	},
45};
46
47int __init da8xx_register_usb_phy(void)
48{
49	da8xx_usb_phy_pdata.cfgchip = da8xx_get_cfgchip();
50
51	return platform_device_register(&da8xx_usb_phy);
52}
53
54static struct musb_hdrc_config musb_config = {
55	.multipoint	= true,
56	.num_eps	= 5,
57	.ram_bits	= 10,
58};
59
60static struct musb_hdrc_platform_data usb_data = {
61	/* OTG requires a Mini-AB connector */
62	.mode           = MUSB_OTG,
63	.clock		= "usb20",
64	.config		= &musb_config,
65};
66
67static struct resource da8xx_usb20_resources[] = {
68	{
69		.start		= DA8XX_USB0_BASE,
70		.end		= DA8XX_USB0_BASE + SZ_64K - 1,
71		.flags		= IORESOURCE_MEM,
72	},
73	{
74		.start		= DAVINCI_INTC_IRQ(IRQ_DA8XX_USB_INT),
75		.flags		= IORESOURCE_IRQ,
76		.name		= "mc",
77	},
78};
79
80static u64 usb_dmamask = DMA_BIT_MASK(32);
81
82static struct platform_device da8xx_usb20_dev = {
83	.name		= "musb-da8xx",
84	.id             = -1,
85	.dev = {
86		.platform_data		= &usb_data,
87		.dma_mask		= &usb_dmamask,
88		.coherent_dma_mask      = DMA_BIT_MASK(32),
89	},
90	.resource	= da8xx_usb20_resources,
91	.num_resources	= ARRAY_SIZE(da8xx_usb20_resources),
92};
93
94int __init da8xx_register_usb20(unsigned int mA, unsigned int potpgt)
95{
96	usb_data.power	= mA > 510 ? 255 : mA / 2;
97	usb_data.potpgt = (potpgt + 1) / 2;
98
99	return platform_device_register(&da8xx_usb20_dev);
100}
101
102static struct resource da8xx_usb11_resources[] = {
103	[0] = {
104		.start	= DA8XX_USB1_BASE,
105		.end	= DA8XX_USB1_BASE + SZ_4K - 1,
106		.flags	= IORESOURCE_MEM,
107	},
108	[1] = {
109		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
110		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
111		.flags	= IORESOURCE_IRQ,
112	},
113};
114
115static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
116
117static struct platform_device da8xx_usb11_device = {
118	.name		= "ohci-da8xx",
119	.id		= -1,
120	.dev = {
121		.dma_mask		= &da8xx_usb11_dma_mask,
122		.coherent_dma_mask	= DMA_BIT_MASK(32),
123	},
124	.num_resources	= ARRAY_SIZE(da8xx_usb11_resources),
125	.resource	= da8xx_usb11_resources,
126};
127
128int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
129{
130	da8xx_usb11_device.dev.platform_data = pdata;
131	return platform_device_register(&da8xx_usb11_device);
132}
133
134static struct platform_device da8xx_usb_phy_clks_device = {
135	.name		= "da830-usb-phy-clks",
136	.id		= -1,
137};
138
139int __init da8xx_register_usb_phy_clocks(void)
140{
141	struct da8xx_cfgchip_clk_platform_data pdata;
142
143	pdata.cfgchip = da8xx_get_cfgchip();
144	da8xx_usb_phy_clks_device.dev.platform_data = &pdata;
145
146	return platform_device_register(&da8xx_usb_phy_clks_device);
147}
148