Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluet...
[linux-2.6] / arch / arm / mach-orion5x / common.c
1 /*
2  * arch/arm/mach-orion5x/common.c
3  *
4  * Core functions for Marvell Orion 5x SoCs
5  *
6  * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
7  *
8  * This file is licensed under the terms of the GNU General Public
9  * License version 2.  This program is licensed "as is" without any
10  * warranty of any kind, whether express or implied.
11  */
12
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/serial_8250.h>
17 #include <linux/mbus.h>
18 #include <linux/mv643xx_eth.h>
19 #include <linux/mv643xx_i2c.h>
20 #include <linux/ata_platform.h>
21 #include <asm/page.h>
22 #include <asm/setup.h>
23 #include <asm/timex.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26 #include <asm/mach/time.h>
27 #include <asm/arch/hardware.h>
28 #include <asm/arch/orion5x.h>
29 #include <asm/plat-orion/ehci-orion.h>
30 #include <asm/plat-orion/orion_nand.h>
31 #include <asm/plat-orion/time.h>
32 #include "common.h"
33
34 /*****************************************************************************
35  * I/O Address Mapping
36  ****************************************************************************/
37 static struct map_desc orion5x_io_desc[] __initdata = {
38         {
39                 .virtual        = ORION5X_REGS_VIRT_BASE,
40                 .pfn            = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
41                 .length         = ORION5X_REGS_SIZE,
42                 .type           = MT_DEVICE,
43         }, {
44                 .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
45                 .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
46                 .length         = ORION5X_PCIE_IO_SIZE,
47                 .type           = MT_DEVICE,
48         }, {
49                 .virtual        = ORION5X_PCI_IO_VIRT_BASE,
50                 .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
51                 .length         = ORION5X_PCI_IO_SIZE,
52                 .type           = MT_DEVICE,
53         }, {
54                 .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
55                 .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
56                 .length         = ORION5X_PCIE_WA_SIZE,
57                 .type           = MT_DEVICE,
58         },
59 };
60
61 void __init orion5x_map_io(void)
62 {
63         iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
64 }
65
66
67 /*****************************************************************************
68  * EHCI
69  ****************************************************************************/
70 static struct orion_ehci_data orion5x_ehci_data = {
71         .dram           = &orion5x_mbus_dram_info,
72 };
73
74 static u64 ehci_dmamask = 0xffffffffUL;
75
76
77 /*****************************************************************************
78  * EHCI0
79  ****************************************************************************/
80 static struct resource orion5x_ehci0_resources[] = {
81         {
82                 .start  = ORION5X_USB0_PHYS_BASE,
83                 .end    = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
84                 .flags  = IORESOURCE_MEM,
85         }, {
86                 .start  = IRQ_ORION5X_USB0_CTRL,
87                 .end    = IRQ_ORION5X_USB0_CTRL,
88                 .flags  = IORESOURCE_IRQ,
89         },
90 };
91
92 static struct platform_device orion5x_ehci0 = {
93         .name           = "orion-ehci",
94         .id             = 0,
95         .dev            = {
96                 .dma_mask               = &ehci_dmamask,
97                 .coherent_dma_mask      = 0xffffffff,
98                 .platform_data          = &orion5x_ehci_data,
99         },
100         .resource       = orion5x_ehci0_resources,
101         .num_resources  = ARRAY_SIZE(orion5x_ehci0_resources),
102 };
103
104 void __init orion5x_ehci0_init(void)
105 {
106         platform_device_register(&orion5x_ehci0);
107 }
108
109
110 /*****************************************************************************
111  * EHCI1
112  ****************************************************************************/
113 static struct resource orion5x_ehci1_resources[] = {
114         {
115                 .start  = ORION5X_USB1_PHYS_BASE,
116                 .end    = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
117                 .flags  = IORESOURCE_MEM,
118         }, {
119                 .start  = IRQ_ORION5X_USB1_CTRL,
120                 .end    = IRQ_ORION5X_USB1_CTRL,
121                 .flags  = IORESOURCE_IRQ,
122         },
123 };
124
125 static struct platform_device orion5x_ehci1 = {
126         .name           = "orion-ehci",
127         .id             = 1,
128         .dev            = {
129                 .dma_mask               = &ehci_dmamask,
130                 .coherent_dma_mask      = 0xffffffff,
131                 .platform_data          = &orion5x_ehci_data,
132         },
133         .resource       = orion5x_ehci1_resources,
134         .num_resources  = ARRAY_SIZE(orion5x_ehci1_resources),
135 };
136
137 void __init orion5x_ehci1_init(void)
138 {
139         platform_device_register(&orion5x_ehci1);
140 }
141
142
143 /*****************************************************************************
144  * GigE
145  ****************************************************************************/
146 struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
147         .dram           = &orion5x_mbus_dram_info,
148         .t_clk          = ORION5X_TCLK,
149 };
150
151 static struct resource orion5x_eth_shared_resources[] = {
152         {
153                 .start  = ORION5X_ETH_PHYS_BASE + 0x2000,
154                 .end    = ORION5X_ETH_PHYS_BASE + 0x3fff,
155                 .flags  = IORESOURCE_MEM,
156         },
157 };
158
159 static struct platform_device orion5x_eth_shared = {
160         .name           = MV643XX_ETH_SHARED_NAME,
161         .id             = 0,
162         .dev            = {
163                 .platform_data  = &orion5x_eth_shared_data,
164         },
165         .num_resources  = 1,
166         .resource       = orion5x_eth_shared_resources,
167 };
168
169 static struct resource orion5x_eth_resources[] = {
170         {
171                 .name   = "eth irq",
172                 .start  = IRQ_ORION5X_ETH_SUM,
173                 .end    = IRQ_ORION5X_ETH_SUM,
174                 .flags  = IORESOURCE_IRQ,
175         },
176 };
177
178 static struct platform_device orion5x_eth = {
179         .name           = MV643XX_ETH_NAME,
180         .id             = 0,
181         .num_resources  = 1,
182         .resource       = orion5x_eth_resources,
183 };
184
185 void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
186 {
187         eth_data->shared = &orion5x_eth_shared;
188         orion5x_eth.dev.platform_data = eth_data;
189
190         platform_device_register(&orion5x_eth_shared);
191         platform_device_register(&orion5x_eth);
192 }
193
194
195 /*****************************************************************************
196  * I2C
197  ****************************************************************************/
198 static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
199         .freq_m         = 8, /* assumes 166 MHz TCLK */
200         .freq_n         = 3,
201         .timeout        = 1000, /* Default timeout of 1 second */
202 };
203
204 static struct resource orion5x_i2c_resources[] = {
205         {
206                 .name   = "i2c base",
207                 .start  = I2C_PHYS_BASE,
208                 .end    = I2C_PHYS_BASE + 0x1f,
209                 .flags  = IORESOURCE_MEM,
210         }, {
211                 .name   = "i2c irq",
212                 .start  = IRQ_ORION5X_I2C,
213                 .end    = IRQ_ORION5X_I2C,
214                 .flags  = IORESOURCE_IRQ,
215         },
216 };
217
218 static struct platform_device orion5x_i2c = {
219         .name           = MV64XXX_I2C_CTLR_NAME,
220         .id             = 0,
221         .num_resources  = ARRAY_SIZE(orion5x_i2c_resources),
222         .resource       = orion5x_i2c_resources,
223         .dev            = {
224                 .platform_data  = &orion5x_i2c_pdata,
225         },
226 };
227
228 void __init orion5x_i2c_init(void)
229 {
230         platform_device_register(&orion5x_i2c);
231 }
232
233
234 /*****************************************************************************
235  * SATA
236  ****************************************************************************/
237 static struct resource orion5x_sata_resources[] = {
238         {
239                 .name   = "sata base",
240                 .start  = ORION5X_SATA_PHYS_BASE,
241                 .end    = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
242                 .flags  = IORESOURCE_MEM,
243         }, {
244                 .name   = "sata irq",
245                 .start  = IRQ_ORION5X_SATA,
246                 .end    = IRQ_ORION5X_SATA,
247                 .flags  = IORESOURCE_IRQ,
248         },
249 };
250
251 static struct platform_device orion5x_sata = {
252         .name           = "sata_mv",
253         .id             = 0,
254         .dev            = {
255                 .coherent_dma_mask      = 0xffffffff,
256         },
257         .num_resources  = ARRAY_SIZE(orion5x_sata_resources),
258         .resource       = orion5x_sata_resources,
259 };
260
261 void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
262 {
263         sata_data->dram = &orion5x_mbus_dram_info;
264         orion5x_sata.dev.platform_data = sata_data;
265         platform_device_register(&orion5x_sata);
266 }
267
268
269 /*****************************************************************************
270  * UART0
271  ****************************************************************************/
272 static struct plat_serial8250_port orion5x_uart0_data[] = {
273         {
274                 .mapbase        = UART0_PHYS_BASE,
275                 .membase        = (char *)UART0_VIRT_BASE,
276                 .irq            = IRQ_ORION5X_UART0,
277                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
278                 .iotype         = UPIO_MEM,
279                 .regshift       = 2,
280                 .uartclk        = ORION5X_TCLK,
281         }, {
282         },
283 };
284
285 static struct resource orion5x_uart0_resources[] = {
286         {
287                 .start          = UART0_PHYS_BASE,
288                 .end            = UART0_PHYS_BASE + 0xff,
289                 .flags          = IORESOURCE_MEM,
290         }, {
291                 .start          = IRQ_ORION5X_UART0,
292                 .end            = IRQ_ORION5X_UART0,
293                 .flags          = IORESOURCE_IRQ,
294         },
295 };
296
297 static struct platform_device orion5x_uart0 = {
298         .name                   = "serial8250",
299         .id                     = PLAT8250_DEV_PLATFORM,
300         .dev                    = {
301                 .platform_data  = orion5x_uart0_data,
302         },
303         .resource               = orion5x_uart0_resources,
304         .num_resources          = ARRAY_SIZE(orion5x_uart0_resources),
305 };
306
307 void __init orion5x_uart0_init(void)
308 {
309         platform_device_register(&orion5x_uart0);
310 }
311
312
313 /*****************************************************************************
314  * UART1
315  ****************************************************************************/
316 static struct plat_serial8250_port orion5x_uart1_data[] = {
317         {
318                 .mapbase        = UART1_PHYS_BASE,
319                 .membase        = (char *)UART1_VIRT_BASE,
320                 .irq            = IRQ_ORION5X_UART1,
321                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
322                 .iotype         = UPIO_MEM,
323                 .regshift       = 2,
324                 .uartclk        = ORION5X_TCLK,
325         }, {
326         },
327 };
328
329 static struct resource orion5x_uart1_resources[] = {
330         {
331                 .start          = UART1_PHYS_BASE,
332                 .end            = UART1_PHYS_BASE + 0xff,
333                 .flags          = IORESOURCE_MEM,
334         }, {
335                 .start          = IRQ_ORION5X_UART1,
336                 .end            = IRQ_ORION5X_UART1,
337                 .flags          = IORESOURCE_IRQ,
338         },
339 };
340
341 static struct platform_device orion5x_uart1 = {
342         .name                   = "serial8250",
343         .id                     = PLAT8250_DEV_PLATFORM1,
344         .dev                    = {
345                 .platform_data  = orion5x_uart1_data,
346         },
347         .resource               = orion5x_uart1_resources,
348         .num_resources          = ARRAY_SIZE(orion5x_uart1_resources),
349 };
350
351 void __init orion5x_uart1_init(void)
352 {
353         platform_device_register(&orion5x_uart1);
354 }
355
356
357 /*****************************************************************************
358  * Time handling
359  ****************************************************************************/
360 static void orion5x_timer_init(void)
361 {
362         orion_time_init(IRQ_ORION5X_BRIDGE, ORION5X_TCLK);
363 }
364
365 struct sys_timer orion5x_timer = {
366         .init = orion5x_timer_init,
367 };
368
369
370 /*****************************************************************************
371  * General
372  ****************************************************************************/
373 /*
374  * Identify device ID and rev from PCIe configuration header space '0'.
375  */
376 static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
377 {
378         orion5x_pcie_id(dev, rev);
379
380         if (*dev == MV88F5281_DEV_ID) {
381                 if (*rev == MV88F5281_REV_D2) {
382                         *dev_name = "MV88F5281-D2";
383                 } else if (*rev == MV88F5281_REV_D1) {
384                         *dev_name = "MV88F5281-D1";
385                 } else {
386                         *dev_name = "MV88F5281-Rev-Unsupported";
387                 }
388         } else if (*dev == MV88F5182_DEV_ID) {
389                 if (*rev == MV88F5182_REV_A2) {
390                         *dev_name = "MV88F5182-A2";
391                 } else {
392                         *dev_name = "MV88F5182-Rev-Unsupported";
393                 }
394         } else if (*dev == MV88F5181_DEV_ID) {
395                 if (*rev == MV88F5181_REV_B1) {
396                         *dev_name = "MV88F5181-Rev-B1";
397                 } else if (*rev == MV88F5181L_REV_A1) {
398                         *dev_name = "MV88F5181L-Rev-A1";
399                 } else {
400                         *dev_name = "MV88F5181(L)-Rev-Unsupported";
401                 }
402         } else {
403                 *dev_name = "Device-Unknown";
404         }
405 }
406
407 void __init orion5x_init(void)
408 {
409         char *dev_name;
410         u32 dev, rev;
411
412         orion5x_id(&dev, &rev, &dev_name);
413         printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION5X_TCLK);
414
415         /*
416          * Setup Orion address map
417          */
418         orion5x_setup_cpu_mbus_bridge();
419 }
420
421 /*
422  * Many orion-based systems have buggy bootloader implementations.
423  * This is a common fixup for bogus memory tags.
424  */
425 void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
426                             char **from, struct meminfo *meminfo)
427 {
428         for (; t->hdr.size; t = tag_next(t))
429                 if (t->hdr.tag == ATAG_MEM &&
430                     (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
431                      t->u.mem.start & ~PAGE_MASK)) {
432                         printk(KERN_WARNING
433                                "Clearing invalid memory bank %dKB@0x%08x\n",
434                                t->u.mem.size / 1024, t->u.mem.start);
435                         t->hdr.tag = 0;
436                 }
437 }