2 * iop13xx platform Initialization
3 * Copyright (c) 2005-2006, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
20 #include <linux/serial_8250.h>
22 #ifdef CONFIG_MTD_PHYSMAP
23 #include <linux/mtd/physmap.h>
25 #include <asm/mach/map.h>
26 #include <mach/hardware.h>
28 #include <asm/hardware/iop_adma.h>
30 #define IOP13XX_UART_XTAL 33334000
31 #define IOP13XX_SETUP_DEBUG 0
32 #define PRINTK(x...) ((void)(IOP13XX_SETUP_DEBUG && printk(x)))
34 /* Standard IO mapping for all IOP13XX based systems
36 static struct map_desc iop13xx_std_desc
[] __initdata
= {
37 { /* mem mapped registers */
38 .virtual = IOP13XX_PMMR_VIRT_MEM_BASE
,
39 .pfn
= __phys_to_pfn(IOP13XX_PMMR_PHYS_MEM_BASE
),
40 .length
= IOP13XX_PMMR_SIZE
,
42 }, { /* PCIE IO space */
43 .virtual = IOP13XX_PCIE_LOWER_IO_VA
,
44 .pfn
= __phys_to_pfn(IOP13XX_PCIE_LOWER_IO_PA
),
45 .length
= IOP13XX_PCIX_IO_WINDOW_SIZE
,
47 }, { /* PCIX IO space */
48 .virtual = IOP13XX_PCIX_LOWER_IO_VA
,
49 .pfn
= __phys_to_pfn(IOP13XX_PCIX_LOWER_IO_PA
),
50 .length
= IOP13XX_PCIX_IO_WINDOW_SIZE
,
55 static struct resource iop13xx_uart0_resources
[] = {
57 .start
= IOP13XX_UART0_PHYS
,
58 .end
= IOP13XX_UART0_PHYS
+ 0x3f,
59 .flags
= IORESOURCE_MEM
,
62 .start
= IRQ_IOP13XX_UART0
,
63 .end
= IRQ_IOP13XX_UART0
,
64 .flags
= IORESOURCE_IRQ
68 static struct resource iop13xx_uart1_resources
[] = {
70 .start
= IOP13XX_UART1_PHYS
,
71 .end
= IOP13XX_UART1_PHYS
+ 0x3f,
72 .flags
= IORESOURCE_MEM
,
75 .start
= IRQ_IOP13XX_UART1
,
76 .end
= IRQ_IOP13XX_UART1
,
77 .flags
= IORESOURCE_IRQ
81 static struct plat_serial8250_port iop13xx_uart0_data
[] = {
83 .membase
= (char*)(IOP13XX_UART0_VIRT
),
84 .mapbase
= (IOP13XX_UART0_PHYS
),
85 .irq
= IRQ_IOP13XX_UART0
,
86 .uartclk
= IOP13XX_UART_XTAL
,
89 .flags
= UPF_SKIP_TEST
,
94 static struct plat_serial8250_port iop13xx_uart1_data
[] = {
96 .membase
= (char*)(IOP13XX_UART1_VIRT
),
97 .mapbase
= (IOP13XX_UART1_PHYS
),
98 .irq
= IRQ_IOP13XX_UART1
,
99 .uartclk
= IOP13XX_UART_XTAL
,
102 .flags
= UPF_SKIP_TEST
,
107 /* The ids are fixed up later in iop13xx_platform_init */
108 static struct platform_device iop13xx_uart0
= {
109 .name
= "serial8250",
111 .dev
.platform_data
= iop13xx_uart0_data
,
113 .resource
= iop13xx_uart0_resources
,
116 static struct platform_device iop13xx_uart1
= {
117 .name
= "serial8250",
119 .dev
.platform_data
= iop13xx_uart1_data
,
121 .resource
= iop13xx_uart1_resources
124 static struct resource iop13xx_i2c_0_resources
[] = {
126 .start
= IOP13XX_I2C0_PHYS
,
127 .end
= IOP13XX_I2C0_PHYS
+ 0x18,
128 .flags
= IORESOURCE_MEM
,
131 .start
= IRQ_IOP13XX_I2C_0
,
132 .end
= IRQ_IOP13XX_I2C_0
,
133 .flags
= IORESOURCE_IRQ
137 static struct resource iop13xx_i2c_1_resources
[] = {
139 .start
= IOP13XX_I2C1_PHYS
,
140 .end
= IOP13XX_I2C1_PHYS
+ 0x18,
141 .flags
= IORESOURCE_MEM
,
144 .start
= IRQ_IOP13XX_I2C_1
,
145 .end
= IRQ_IOP13XX_I2C_1
,
146 .flags
= IORESOURCE_IRQ
150 static struct resource iop13xx_i2c_2_resources
[] = {
152 .start
= IOP13XX_I2C2_PHYS
,
153 .end
= IOP13XX_I2C2_PHYS
+ 0x18,
154 .flags
= IORESOURCE_MEM
,
157 .start
= IRQ_IOP13XX_I2C_2
,
158 .end
= IRQ_IOP13XX_I2C_2
,
159 .flags
= IORESOURCE_IRQ
163 /* I2C controllers. The IOP13XX uses the same block as the IOP3xx, so
164 * we just use the same device name.
167 /* The ids are fixed up later in iop13xx_platform_init */
168 static struct platform_device iop13xx_i2c_0_controller
= {
169 .name
= "IOP3xx-I2C",
172 .resource
= iop13xx_i2c_0_resources
175 static struct platform_device iop13xx_i2c_1_controller
= {
176 .name
= "IOP3xx-I2C",
179 .resource
= iop13xx_i2c_1_resources
182 static struct platform_device iop13xx_i2c_2_controller
= {
183 .name
= "IOP3xx-I2C",
186 .resource
= iop13xx_i2c_2_resources
189 #ifdef CONFIG_MTD_PHYSMAP
192 static struct physmap_flash_data iq8134x_flash_data
= {
196 static struct resource iq8134x_flash_resource
= {
197 .start
= IQ81340_FLASHBASE
,
199 .flags
= IORESOURCE_MEM
,
202 static struct platform_device iq8134x_flash
= {
203 .name
= "physmap-flash",
205 .dev
= { .platform_data
= &iq8134x_flash_data
, },
207 .resource
= &iq8134x_flash_resource
,
210 static unsigned long iq8134x_probe_flash_size(void)
212 uint8_t __iomem
*flash_addr
= ioremap(IQ81340_FLASHBASE
, PAGE_SIZE
);
215 unsigned long size
= 0;
216 int width
= iq8134x_flash_data
.width
;
219 /* send CFI 'query' command */
220 writew(0x98, flash_addr
);
222 /* check for CFI compliance */
223 for (i
= 0; i
< 3 * width
; i
+= width
)
224 query
[i
/ width
] = readb(flash_addr
+ (0x10 * width
) + i
);
227 if (memcmp(query
, "QRY", 3) == 0)
228 size
= 1 << readb(flash_addr
+ (0x27 * width
));
230 /* send CFI 'read array' command */
231 writew(0xff, flash_addr
);
241 static struct resource iop13xx_adma_0_resources
[] = {
243 .start
= IOP13XX_ADMA_PHYS_BASE(0),
244 .end
= IOP13XX_ADMA_UPPER_PA(0),
245 .flags
= IORESOURCE_MEM
,
248 .start
= IRQ_IOP13XX_ADMA0_EOT
,
249 .end
= IRQ_IOP13XX_ADMA0_EOT
,
250 .flags
= IORESOURCE_IRQ
253 .start
= IRQ_IOP13XX_ADMA0_EOC
,
254 .end
= IRQ_IOP13XX_ADMA0_EOC
,
255 .flags
= IORESOURCE_IRQ
258 .start
= IRQ_IOP13XX_ADMA0_ERR
,
259 .end
= IRQ_IOP13XX_ADMA0_ERR
,
260 .flags
= IORESOURCE_IRQ
264 static struct resource iop13xx_adma_1_resources
[] = {
266 .start
= IOP13XX_ADMA_PHYS_BASE(1),
267 .end
= IOP13XX_ADMA_UPPER_PA(1),
268 .flags
= IORESOURCE_MEM
,
271 .start
= IRQ_IOP13XX_ADMA1_EOT
,
272 .end
= IRQ_IOP13XX_ADMA1_EOT
,
273 .flags
= IORESOURCE_IRQ
276 .start
= IRQ_IOP13XX_ADMA1_EOC
,
277 .end
= IRQ_IOP13XX_ADMA1_EOC
,
278 .flags
= IORESOURCE_IRQ
281 .start
= IRQ_IOP13XX_ADMA1_ERR
,
282 .end
= IRQ_IOP13XX_ADMA1_ERR
,
283 .flags
= IORESOURCE_IRQ
287 static struct resource iop13xx_adma_2_resources
[] = {
289 .start
= IOP13XX_ADMA_PHYS_BASE(2),
290 .end
= IOP13XX_ADMA_UPPER_PA(2),
291 .flags
= IORESOURCE_MEM
,
294 .start
= IRQ_IOP13XX_ADMA2_EOT
,
295 .end
= IRQ_IOP13XX_ADMA2_EOT
,
296 .flags
= IORESOURCE_IRQ
299 .start
= IRQ_IOP13XX_ADMA2_EOC
,
300 .end
= IRQ_IOP13XX_ADMA2_EOC
,
301 .flags
= IORESOURCE_IRQ
304 .start
= IRQ_IOP13XX_ADMA2_ERR
,
305 .end
= IRQ_IOP13XX_ADMA2_ERR
,
306 .flags
= IORESOURCE_IRQ
310 static u64 iop13xx_adma_dmamask
= DMA_BIT_MASK(64);
311 static struct iop_adma_platform_data iop13xx_adma_0_data
= {
313 .pool_size
= PAGE_SIZE
,
316 static struct iop_adma_platform_data iop13xx_adma_1_data
= {
318 .pool_size
= PAGE_SIZE
,
321 static struct iop_adma_platform_data iop13xx_adma_2_data
= {
323 .pool_size
= PAGE_SIZE
,
326 /* The ids are fixed up later in iop13xx_platform_init */
327 static struct platform_device iop13xx_adma_0_channel
= {
331 .resource
= iop13xx_adma_0_resources
,
333 .dma_mask
= &iop13xx_adma_dmamask
,
334 .coherent_dma_mask
= DMA_BIT_MASK(64),
335 .platform_data
= (void *) &iop13xx_adma_0_data
,
339 static struct platform_device iop13xx_adma_1_channel
= {
343 .resource
= iop13xx_adma_1_resources
,
345 .dma_mask
= &iop13xx_adma_dmamask
,
346 .coherent_dma_mask
= DMA_BIT_MASK(64),
347 .platform_data
= (void *) &iop13xx_adma_1_data
,
351 static struct platform_device iop13xx_adma_2_channel
= {
355 .resource
= iop13xx_adma_2_resources
,
357 .dma_mask
= &iop13xx_adma_dmamask
,
358 .coherent_dma_mask
= DMA_BIT_MASK(64),
359 .platform_data
= (void *) &iop13xx_adma_2_data
,
363 void __init
iop13xx_map_io(void)
365 /* Initialize the Static Page Table maps */
366 iotable_init(iop13xx_std_desc
, ARRAY_SIZE(iop13xx_std_desc
));
369 static int init_uart
;
371 static int init_adma
;
373 void __init
iop13xx_platform_init(void)
376 u32 uart_idx
, i2c_idx
, adma_idx
, plat_idx
;
377 struct platform_device
*iop13xx_devices
[IQ81340_MAX_PLAT_DEVICES
];
379 /* set the bases so we can read the device id */
380 iop13xx_set_atu_mmr_bases();
382 memset(iop13xx_devices
, 0, sizeof(iop13xx_devices
));
384 if (init_uart
== IOP13XX_INIT_UART_DEFAULT
) {
385 switch (iop13xx_dev_id()) {
386 /* enable both uarts on iop341 */
391 init_uart
|= IOP13XX_INIT_UART_0
;
392 init_uart
|= IOP13XX_INIT_UART_1
;
394 /* only enable uart 1 */
396 init_uart
|= IOP13XX_INIT_UART_1
;
400 if (init_i2c
== IOP13XX_INIT_I2C_DEFAULT
) {
401 switch (iop13xx_dev_id()) {
402 /* enable all i2c units on iop341 and iop342 */
411 init_i2c
|= IOP13XX_INIT_I2C_0
;
412 init_i2c
|= IOP13XX_INIT_I2C_1
;
413 init_i2c
|= IOP13XX_INIT_I2C_2
;
415 /* only enable i2c 1 and 2 */
417 init_i2c
|= IOP13XX_INIT_I2C_1
;
418 init_i2c
|= IOP13XX_INIT_I2C_2
;
422 if (init_adma
== IOP13XX_INIT_ADMA_DEFAULT
) {
423 init_adma
|= IOP13XX_INIT_ADMA_0
;
424 init_adma
|= IOP13XX_INIT_ADMA_1
;
425 init_adma
|= IOP13XX_INIT_ADMA_2
;
432 /* uart 1 (if enabled) is ttyS0 */
433 if (init_uart
& IOP13XX_INIT_UART_1
) {
434 PRINTK("Adding uart1 to platform device list\n");
435 iop13xx_uart1
.id
= uart_idx
++;
436 iop13xx_devices
[plat_idx
++] = &iop13xx_uart1
;
438 if (init_uart
& IOP13XX_INIT_UART_0
) {
439 PRINTK("Adding uart0 to platform device list\n");
440 iop13xx_uart0
.id
= uart_idx
++;
441 iop13xx_devices
[plat_idx
++] = &iop13xx_uart0
;
444 for(i
= 0; i
< IQ81340_NUM_I2C
; i
++) {
445 if ((init_i2c
& (1 << i
)) && IOP13XX_SETUP_DEBUG
)
446 printk("Adding i2c%d to platform device list\n", i
);
447 switch(init_i2c
& (1 << i
)) {
448 case IOP13XX_INIT_I2C_0
:
449 iop13xx_i2c_0_controller
.id
= i2c_idx
++;
450 iop13xx_devices
[plat_idx
++] =
451 &iop13xx_i2c_0_controller
;
453 case IOP13XX_INIT_I2C_1
:
454 iop13xx_i2c_1_controller
.id
= i2c_idx
++;
455 iop13xx_devices
[plat_idx
++] =
456 &iop13xx_i2c_1_controller
;
458 case IOP13XX_INIT_I2C_2
:
459 iop13xx_i2c_2_controller
.id
= i2c_idx
++;
460 iop13xx_devices
[plat_idx
++] =
461 &iop13xx_i2c_2_controller
;
466 /* initialize adma channel ids and capabilities */
468 for (i
= 0; i
< IQ81340_NUM_ADMA
; i
++) {
469 struct iop_adma_platform_data
*plat_data
;
470 if ((init_adma
& (1 << i
)) && IOP13XX_SETUP_DEBUG
)
472 "Adding adma%d to platform device list\n", i
);
473 switch (init_adma
& (1 << i
)) {
474 case IOP13XX_INIT_ADMA_0
:
475 iop13xx_adma_0_channel
.id
= adma_idx
++;
476 iop13xx_devices
[plat_idx
++] = &iop13xx_adma_0_channel
;
477 plat_data
= &iop13xx_adma_0_data
;
478 dma_cap_set(DMA_MEMCPY
, plat_data
->cap_mask
);
479 dma_cap_set(DMA_XOR
, plat_data
->cap_mask
);
480 dma_cap_set(DMA_XOR_VAL
, plat_data
->cap_mask
);
481 dma_cap_set(DMA_MEMSET
, plat_data
->cap_mask
);
482 dma_cap_set(DMA_INTERRUPT
, plat_data
->cap_mask
);
484 case IOP13XX_INIT_ADMA_1
:
485 iop13xx_adma_1_channel
.id
= adma_idx
++;
486 iop13xx_devices
[plat_idx
++] = &iop13xx_adma_1_channel
;
487 plat_data
= &iop13xx_adma_1_data
;
488 dma_cap_set(DMA_MEMCPY
, plat_data
->cap_mask
);
489 dma_cap_set(DMA_XOR
, plat_data
->cap_mask
);
490 dma_cap_set(DMA_XOR_VAL
, plat_data
->cap_mask
);
491 dma_cap_set(DMA_MEMSET
, plat_data
->cap_mask
);
492 dma_cap_set(DMA_INTERRUPT
, plat_data
->cap_mask
);
494 case IOP13XX_INIT_ADMA_2
:
495 iop13xx_adma_2_channel
.id
= adma_idx
++;
496 iop13xx_devices
[plat_idx
++] = &iop13xx_adma_2_channel
;
497 plat_data
= &iop13xx_adma_2_data
;
498 dma_cap_set(DMA_MEMCPY
, plat_data
->cap_mask
);
499 dma_cap_set(DMA_XOR
, plat_data
->cap_mask
);
500 dma_cap_set(DMA_XOR_VAL
, plat_data
->cap_mask
);
501 dma_cap_set(DMA_MEMSET
, plat_data
->cap_mask
);
502 dma_cap_set(DMA_INTERRUPT
, plat_data
->cap_mask
);
503 dma_cap_set(DMA_PQ
, plat_data
->cap_mask
);
504 dma_cap_set(DMA_PQ_VAL
, plat_data
->cap_mask
);
509 #ifdef CONFIG_MTD_PHYSMAP
510 iq8134x_flash_resource
.end
= iq8134x_flash_resource
.start
+
511 iq8134x_probe_flash_size() - 1;
512 if (iq8134x_flash_resource
.end
> iq8134x_flash_resource
.start
)
513 iop13xx_devices
[plat_idx
++] = &iq8134x_flash
;
515 printk(KERN_ERR
"%s: Failed to probe flash size\n", __func__
);
518 platform_add_devices(iop13xx_devices
, plat_idx
);
521 static int __init
iop13xx_init_uart_setup(char *str
)
524 while (*str
!= '\0') {
527 init_uart
|= IOP13XX_INIT_UART_0
;
530 init_uart
|= IOP13XX_INIT_UART_1
;
536 PRINTK("\"iop13xx_init_uart\" malformed"
537 " at character: \'%c\'", *str
);
539 init_uart
= IOP13XX_INIT_UART_DEFAULT
;
547 static int __init
iop13xx_init_i2c_setup(char *str
)
550 while (*str
!= '\0') {
553 init_i2c
|= IOP13XX_INIT_I2C_0
;
556 init_i2c
|= IOP13XX_INIT_I2C_1
;
559 init_i2c
|= IOP13XX_INIT_I2C_2
;
565 PRINTK("\"iop13xx_init_i2c\" malformed"
566 " at character: \'%c\'", *str
);
568 init_i2c
= IOP13XX_INIT_I2C_DEFAULT
;
576 static int __init
iop13xx_init_adma_setup(char *str
)
579 while (*str
!= '\0') {
582 init_adma
|= IOP13XX_INIT_ADMA_0
;
585 init_adma
|= IOP13XX_INIT_ADMA_1
;
588 init_adma
|= IOP13XX_INIT_ADMA_2
;
594 PRINTK("\"iop13xx_init_adma\" malformed"
595 " at character: \'%c\'", *str
);
597 init_adma
= IOP13XX_INIT_ADMA_DEFAULT
;
605 __setup("iop13xx_init_adma", iop13xx_init_adma_setup
);
606 __setup("iop13xx_init_uart", iop13xx_init_uart_setup
);
607 __setup("iop13xx_init_i2c", iop13xx_init_i2c_setup
);