aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-orion/common.c
blob: 2d6d413f02351bb23b66e32c08fa119bb1a950bf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
/*
 * arch/arm/mach-orion/common.c
 *
 * Core functions for Marvell Orion System On Chip
 *
 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
 *
 * This file is licensed under  the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/mv643xx_eth.h>
#include <linux/mv643xx_i2c.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/timex.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/hardware.h>
#include "common.h"

/*****************************************************************************
 * I/O Address Mapping
 ****************************************************************************/
static struct map_desc orion_io_desc[] __initdata = {
	{
		.virtual	= ORION_REGS_VIRT_BASE,
		.pfn		= __phys_to_pfn(ORION_REGS_PHYS_BASE),
		.length		= ORION_REGS_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= ORION_PCIE_IO_VIRT_BASE,
		.pfn		= __phys_to_pfn(ORION_PCIE_IO_PHYS_BASE),
		.length		= ORION_PCIE_IO_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= ORION_PCI_IO_VIRT_BASE,
		.pfn		= __phys_to_pfn(ORION_PCI_IO_PHYS_BASE),
		.length		= ORION_PCI_IO_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= ORION_PCIE_WA_VIRT_BASE,
		.pfn		= __phys_to_pfn(ORION_PCIE_WA_PHYS_BASE),
		.length		= ORION_PCIE_WA_SIZE,
		.type		= MT_DEVICE
	},
};

void __init orion_map_io(void)
{
	iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
}

/*****************************************************************************
 * UART
 ****************************************************************************/

static struct resource orion_uart_resources[] = {
	{
		.start		= UART0_PHYS_BASE,
		.end		= UART0_PHYS_BASE + 0xff,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= IRQ_ORION_UART0,
		.end		= IRQ_ORION_UART0,
		.flags		= IORESOURCE_IRQ,
	},
	{
		.start		= UART1_PHYS_BASE,
		.end		= UART1_PHYS_BASE + 0xff,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= IRQ_ORION_UART1,
		.end		= IRQ_ORION_UART1,
		.flags		= IORESOURCE_IRQ,
	},
};

static struct plat_serial8250_port orion_uart_data[] = {
	{
		.mapbase	= UART0_PHYS_BASE,
		.membase	= (char *)UART0_VIRT_BASE,
		.irq		= IRQ_ORION_UART0,
		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= ORION_TCLK,
	},
	{
		.mapbase	= UART1_PHYS_BASE,
		.membase	= (char *)UART1_VIRT_BASE,
		.irq		= IRQ_ORION_UART1,
		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= ORION_TCLK,
	},
	{ },
};

static struct platform_device orion_uart = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev			= {
		.platform_data	= orion_uart_data,
	},
	.resource		= orion_uart_resources,
	.num_resources		= ARRAY_SIZE(orion_uart_resources),
};

/*******************************************************************************
 * USB Controller - 2 interfaces
 ******************************************************************************/

static struct resource orion_ehci0_resources[] = {
	{
		.start	= ORION_USB0_PHYS_BASE,
		.end	= ORION_USB0_PHYS_BASE + SZ_4K,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= IRQ_ORION_USB0_CTRL,
		.end	= IRQ_ORION_USB0_CTRL,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct resource orion_ehci1_resources[] = {
	{
		.start	= ORION_USB1_PHYS_BASE,
		.end	= ORION_USB1_PHYS_BASE + SZ_4K,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= IRQ_ORION_USB1_CTRL,
		.end	= IRQ_ORION_USB1_CTRL,
		.flags	= IORESOURCE_IRQ,
	},
};

static u64 ehci_dmamask = 0xffffffffUL;

static struct platform_device orion_ehci0 = {
	.name		= "orion-ehci",
	.id		= 0,
	.dev		= {
		.dma_mask		= &ehci_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.resource	= orion_ehci0_resources,
	.num_resources	= ARRAY_SIZE(orion_ehci0_resources),
};

static struct platform_device orion_ehci1 = {
	.name		= "orion-ehci",
	.id		= 1,
	.dev		= {
		.dma_mask		= &ehci_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.resource	= orion_ehci1_resources,
	.num_resources	= ARRAY_SIZE(orion_ehci1_resources),
};

/*****************************************************************************
 * Gigabit Ethernet port
 * (The Orion and Discovery (MV643xx) families use the same Ethernet driver)
 ****************************************************************************/

static struct resource orion_eth_shared_resources[] = {
	{
		.start	= ORION_ETH_PHYS_BASE,
		.end	= ORION_ETH_PHYS_BASE + 0xffff,
		.flags	= IORESOURCE_MEM,
	},
};

static struct platform_device orion_eth_shared = {
	.name		= MV643XX_ETH_SHARED_NAME,
	.id		= 0,
	.num_resources	= 1,
	.resource	= orion_eth_shared_resources,
};

static struct resource orion_eth_resources[] = {
	{
		.name	= "eth irq",
		.start	= IRQ_ORION_ETH_SUM,
		.end	= IRQ_ORION_ETH_SUM,
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device orion_eth = {
	.name		= MV643XX_ETH_NAME,
	.id		= 0,
	.num_resources	= 1,
	.resource	= orion_eth_resources,
};

void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data)
{
	orion_eth.dev.platform_data = eth_data;
	platform_device_register(&orion_eth_shared);
	platform_device_register(&orion_eth);
}

/*****************************************************************************
 * I2C controller
 * (The Orion and Discovery (MV643xx) families share the same I2C controller)
 ****************************************************************************/

static struct mv64xxx_i2c_pdata orion_i2c_pdata = {
	.freq_m		= 8, /* assumes 166 MHz TCLK */
	.freq_n		= 3,
	.timeout	= 1000, /* Default timeout of 1 second */
};

static struct resource orion_i2c_resources[] = {
	{
		.name   = "i2c base",
		.start  = I2C_PHYS_BASE,
		.end    = I2C_PHYS_BASE + 0x20 -1,
		.flags  = IORESOURCE_MEM,
	},
	{
		.name   = "i2c irq",
		.start  = IRQ_ORION_I2C,
		.end    = IRQ_ORION_I2C,
		.flags  = IORESOURCE_IRQ,
	},
};

static struct platform_device orion_i2c = {
	.name		= MV64XXX_I2C_CTLR_NAME,
	.id		= 0,
	.num_resources	= ARRAY_SIZE(orion_i2c_resources),
	.resource	= orion_i2c_resources,
	.dev		= {
		.platform_data = &orion_i2c_pdata,
	},
};

/*****************************************************************************
 * Sata port
 ****************************************************************************/
static struct resource orion_sata_resources[] = {
        {
                .name   = "sata base",
                .start  = ORION_SATA_PHYS_BASE,
                .end    = ORION_SATA_PHYS_BASE + 0x5000 - 1,
                .flags  = IORESOURCE_MEM,
        },
	{
                .name   = "sata irq",
                .start  = IRQ_ORION_SATA,
                .end    = IRQ_ORION_SATA,
                .flags  = IORESOURCE_IRQ,
        },
};

static struct platform_device orion_sata = {
	.name           = "sata_mv",
	.id             = 0,
	.dev		= {
		.coherent_dma_mask	= 0xffffffff,
	},
	.num_resources  = ARRAY_SIZE(orion_sata_resources),
	.resource       = orion_sata_resources,
};

void __init orion_sata_init(struct mv_sata_platform_data *sata_data)
{
	orion_sata.dev.platform_data = sata_data;
	platform_device_register(&orion_sata);
}

/*****************************************************************************
 * General
 ****************************************************************************/

/*
 * Identify device ID and rev from PCIE configuration header space '0'.
 */
static void orion_id(u32 *dev, u32 *rev, char **dev_name)
{
	orion_pcie_id(dev, rev);

	if (*dev == MV88F5281_DEV_ID) {
		if (*rev == MV88F5281_REV_D2) {
			*dev_name = "MV88F5281-D2";
		} else if (*rev == MV88F5281_REV_D1) {
			*dev_name = "MV88F5281-D1";
		} else {
			*dev_name = "MV88F5281-Rev-Unsupported";
		}
	} else if (*dev == MV88F5182_DEV_ID) {
		if (*rev == MV88F5182_REV_A2) {
			*dev_name = "MV88F5182-A2";
		} else {
			*dev_name = "MV88F5182-Rev-Unsupported";
		}
	} else if (*dev == MV88F5181_DEV_ID) {
		if (*rev == MV88F5181_REV_B1) {
			*dev_name = "MV88F5181-Rev-B1";
		} else {
			*dev_name = "MV88F5181-Rev-Unsupported";
		}
	} else {
		*dev_name = "Device-Unknown";
	}
}

void __init orion_init(void)
{
	char *dev_name;
	u32 dev, rev;

	orion_id(&dev, &rev, &dev_name);
	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK);

	/*
	 * Setup Orion address map
	 */
	orion_setup_cpu_wins();
	orion_setup_usb_wins();
	orion_setup_eth_wins();
	orion_setup_pci_wins();
	orion_setup_pcie_wins();
	if (dev == MV88F5182_DEV_ID)
		orion_setup_sata_wins();

	/*
	 * REgister devices
	 */
	platform_device_register(&orion_uart);
	platform_device_register(&orion_ehci0);
	if (dev == MV88F5182_DEV_ID)
		platform_device_register(&orion_ehci1);
	platform_device_register(&orion_i2c);
}

/*
 * Many orion-based systems have buggy bootloader implementations.
 * This is a common fixup for bogus memory tags.
 */
void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
			    char **from, struct meminfo *meminfo)
{
	for (; t->hdr.size; t = tag_next(t))
		if (t->hdr.tag == ATAG_MEM &&
		    (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
		     t->u.mem.start & ~PAGE_MASK)) {
			printk(KERN_WARNING
			       "Clearing invalid memory bank %dKB@0x%08x\n",
			       t->u.mem.size / 1024, t->u.mem.start);
			t->hdr.tag = 0;
		}
}