1/*
2 * USB
3 */
4#include <linux/init.h>
5#include <linux/platform_device.h>
6#include <linux/dma-mapping.h>
7
8#include <linux/usb/musb.h>
9
10#include <mach/common.h>
11#include <mach/irqs.h>
12#include <mach/cputype.h>
13#include <mach/da8xx.h>
14#include <linux/platform_data/usb-davinci.h>
15
16#define DAVINCI_USB_OTG_BASE	0x01c64000
17
18#define DA8XX_USB0_BASE 	0x01e00000
19#define DA8XX_USB1_BASE 	0x01e25000
20
21#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
22static struct musb_hdrc_eps_bits musb_eps[] = {
23	{ "ep1_tx", 8, },
24	{ "ep1_rx", 8, },
25	{ "ep2_tx", 8, },
26	{ "ep2_rx", 8, },
27	{ "ep3_tx", 5, },
28	{ "ep3_rx", 5, },
29	{ "ep4_tx", 5, },
30	{ "ep4_rx", 5, },
31};
32
33static struct musb_hdrc_config musb_config = {
34	.multipoint	= true,
35	.dyn_fifo	= true,
36	.soft_con	= true,
37	.dma		= true,
38
39	.num_eps	= 5,
40	.dma_channels	= 8,
41	.ram_bits	= 10,
42	.eps_bits	= musb_eps,
43};
44
45static struct musb_hdrc_platform_data usb_data = {
46	/* OTG requires a Mini-AB connector */
47	.mode           = MUSB_OTG,
48	.clock		= "usb",
49	.config		= &musb_config,
50};
51
52static struct resource usb_resources[] = {
53	{
54		/* physical address */
55		.start          = DAVINCI_USB_OTG_BASE,
56		.end            = DAVINCI_USB_OTG_BASE + 0x5ff,
57		.flags          = IORESOURCE_MEM,
58	},
59	{
60		.start          = IRQ_USBINT,
61		.flags          = IORESOURCE_IRQ,
62		.name		= "mc"
63	},
64	{
65		/* placeholder for the dedicated CPPI IRQ */
66		.flags          = IORESOURCE_IRQ,
67		.name		= "dma"
68	},
69};
70
71static u64 usb_dmamask = DMA_BIT_MASK(32);
72
73static struct platform_device usb_dev = {
74	.name           = "musb-davinci",
75	.id             = -1,
76	.dev = {
77		.platform_data		= &usb_data,
78		.dma_mask		= &usb_dmamask,
79		.coherent_dma_mask      = DMA_BIT_MASK(32),
80	},
81	.resource       = usb_resources,
82	.num_resources  = ARRAY_SIZE(usb_resources),
83};
84
85void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
86{
87	usb_data.power = mA > 510 ? 255 : mA / 2;
88	usb_data.potpgt = (potpgt_ms + 1) / 2;
89
90	if (cpu_is_davinci_dm646x()) {
91		/* Override the defaults as DM6467 uses different IRQs. */
92		usb_dev.resource[1].start = IRQ_DM646X_USBINT;
93		usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
94	} else	/* other devices don't have dedicated CPPI IRQ */
95		usb_dev.num_resources = 2;
96
97	platform_device_register(&usb_dev);
98}
99
100#ifdef CONFIG_ARCH_DAVINCI_DA8XX
101static struct resource da8xx_usb20_resources[] = {
102	{
103		.start		= DA8XX_USB0_BASE,
104		.end		= DA8XX_USB0_BASE + SZ_64K - 1,
105		.flags		= IORESOURCE_MEM,
106	},
107	{
108		.start		= IRQ_DA8XX_USB_INT,
109		.flags		= IORESOURCE_IRQ,
110		.name		= "mc",
111	},
112};
113
114int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
115{
116	usb_data.clock  = "usb20";
117	usb_data.power	= mA > 510 ? 255 : mA / 2;
118	usb_data.potpgt = (potpgt + 1) / 2;
119
120	usb_dev.resource = da8xx_usb20_resources;
121	usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources);
122	usb_dev.name = "musb-da8xx";
123
124	return platform_device_register(&usb_dev);
125}
126#endif	/* CONFIG_DAVINCI_DA8XX */
127
128#else
129
130void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
131{
132}
133
134#ifdef CONFIG_ARCH_DAVINCI_DA8XX
135int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
136{
137	return 0;
138}
139#endif
140
141#endif  /* CONFIG_USB_MUSB_HDRC */
142
143#ifdef	CONFIG_ARCH_DAVINCI_DA8XX
144static struct resource da8xx_usb11_resources[] = {
145	[0] = {
146		.start	= DA8XX_USB1_BASE,
147		.end	= DA8XX_USB1_BASE + SZ_4K - 1,
148		.flags	= IORESOURCE_MEM,
149	},
150	[1] = {
151		.start	= IRQ_DA8XX_IRQN,
152		.end	= IRQ_DA8XX_IRQN,
153		.flags	= IORESOURCE_IRQ,
154	},
155};
156
157static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
158
159static struct platform_device da8xx_usb11_device = {
160	.name		= "ohci",
161	.id		= 0,
162	.dev = {
163		.dma_mask		= &da8xx_usb11_dma_mask,
164		.coherent_dma_mask	= DMA_BIT_MASK(32),
165	},
166	.num_resources	= ARRAY_SIZE(da8xx_usb11_resources),
167	.resource	= da8xx_usb11_resources,
168};
169
170int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
171{
172	da8xx_usb11_device.dev.platform_data = pdata;
173	return platform_device_register(&da8xx_usb11_device);
174}
175#endif	/* CONFIG_DAVINCI_DA8XX */
176