2 * Alchemy Db1550/Pb1550 board support
4 * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com>
7 #include <linux/dma-mapping.h>
8 #include <linux/gpio.h>
10 #include <linux/init.h>
12 #include <linux/interrupt.h>
13 #include <linux/mtd/mtd.h>
14 #include <linux/mtd/nand.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/platform_device.h>
18 #include <linux/spi/spi.h>
19 #include <linux/spi/flash.h>
20 #include <asm/bootinfo.h>
21 #include <asm/mach-au1x00/au1000.h>
22 #include <asm/mach-au1x00/au1xxx_eth.h>
23 #include <asm/mach-au1x00/au1xxx_dbdma.h>
24 #include <asm/mach-au1x00/au1xxx_psc.h>
25 #include <asm/mach-au1x00/au1550_spi.h>
26 #include <asm/mach-au1x00/au1550nd.h>
27 #include <asm/mach-db1x00/bcsr.h>
31 static void __init
db1550_hw_setup(void)
35 /* complete SPI setup: link psc0_intclk to a 48MHz source,
36 * and assign GPIO16 to PSC0_SYNC1 (SPI cs# line) as well as PSC1_SYNC
39 base
= (void __iomem
*)SYS_CLKSRC
;
40 __raw_writel(__raw_readl(base
) | 0x000001e0, base
);
41 base
= (void __iomem
*)SYS_PINFUNC
;
42 __raw_writel(__raw_readl(base
) | 1 | SYS_PF_PSC1_S1
, base
);
45 /* reset the AC97 codec now, the reset time in the psc-ac97 driver
46 * is apparently too short although it's ridiculous as it is.
48 base
= (void __iomem
*)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR
);
49 __raw_writel(PSC_SEL_CLK_SERCLK
| PSC_SEL_PS_AC97MODE
,
50 base
+ PSC_SEL_OFFSET
);
51 __raw_writel(PSC_CTRL_DISABLE
, base
+ PSC_CTRL_OFFSET
);
53 __raw_writel(PSC_AC97RST_RST
, base
+ PSC_AC97RST_OFFSET
);
57 int __init
db1550_board_setup(void)
59 unsigned short whoami
;
61 bcsr_init(DB1550_BCSR_PHYS_ADDR
,
62 DB1550_BCSR_PHYS_ADDR
+ DB1550_BCSR_HEXLED_OFS
);
64 whoami
= bcsr_read(BCSR_WHOAMI
); /* PB1550 hexled offset differs */
65 if ((BCSR_WHOAMI_BOARD(whoami
) == BCSR_WHOAMI_PB1550_SDR
) ||
66 (BCSR_WHOAMI_BOARD(whoami
) == BCSR_WHOAMI_PB1550_DDR
))
67 bcsr_init(PB1550_BCSR_PHYS_ADDR
,
68 PB1550_BCSR_PHYS_ADDR
+ PB1550_BCSR_HEXLED_OFS
);
70 pr_info("Alchemy/AMD %s Board, CPLD Rev %d Board-ID %d " \
71 "Daughtercard ID %d\n", get_system_type(),
72 (whoami
>> 4) & 0xf, (whoami
>> 8) & 0xf, whoami
& 0xf);
78 /*****************************************************************************/
80 static struct mtd_partition db1550_spiflash_parts
[] = {
84 .size
= MTDPART_SIZ_FULL
,
88 static struct flash_platform_data db1550_spiflash_data
= {
90 .parts
= db1550_spiflash_parts
,
91 .nr_parts
= ARRAY_SIZE(db1550_spiflash_parts
),
95 static struct spi_board_info db1550_spi_devs
[] __initdata
= {
97 /* TI TMP121AIDBVR temp sensor */
99 .max_speed_hz
= 2400000,
105 /* Spansion S25FL001D0FMA SPI flash */
106 .modalias
= "m25p80",
107 .max_speed_hz
= 2400000,
111 .platform_data
= &db1550_spiflash_data
,
115 static struct i2c_board_info db1550_i2c_devs
[] __initdata
= {
116 { I2C_BOARD_INFO("24c04", 0x52),}, /* AT24C04-10 I2C eeprom */
117 { I2C_BOARD_INFO("ne1619", 0x2d),}, /* adm1025-compat hwmon */
118 { I2C_BOARD_INFO("wm8731", 0x1b),}, /* I2S audio codec WM8731 */
121 /**********************************************************************/
123 static void au1550_nand_cmd_ctrl(struct mtd_info
*mtd
, int cmd
,
126 struct nand_chip
*this = mtd
->priv
;
127 unsigned long ioaddr
= (unsigned long)this->IO_ADDR_W
;
129 ioaddr
&= 0xffffff00;
131 if (ctrl
& NAND_CLE
) {
132 ioaddr
+= MEM_STNAND_CMD
;
133 } else if (ctrl
& NAND_ALE
) {
134 ioaddr
+= MEM_STNAND_ADDR
;
136 /* assume we want to r/w real data by default */
137 ioaddr
+= MEM_STNAND_DATA
;
139 this->IO_ADDR_R
= this->IO_ADDR_W
= (void __iomem
*)ioaddr
;
140 if (cmd
!= NAND_CMD_NONE
) {
141 __raw_writeb(cmd
, this->IO_ADDR_W
);
146 static int au1550_nand_device_ready(struct mtd_info
*mtd
)
148 return __raw_readl((void __iomem
*)MEM_STSTAT
) & 1;
151 static struct mtd_partition db1550_nand_parts
[] = {
155 .size
= 8 * 1024 * 1024,
159 .offset
= MTDPART_OFS_APPEND
,
160 .size
= MTDPART_SIZ_FULL
164 struct platform_nand_data db1550_nand_platdata
= {
168 .nr_partitions
= ARRAY_SIZE(db1550_nand_parts
),
169 .partitions
= db1550_nand_parts
,
173 .dev_ready
= au1550_nand_device_ready
,
174 .cmd_ctrl
= au1550_nand_cmd_ctrl
,
178 static struct resource db1550_nand_res
[] = {
182 .flags
= IORESOURCE_MEM
,
186 static struct platform_device db1550_nand_dev
= {
188 .num_resources
= ARRAY_SIZE(db1550_nand_res
),
189 .resource
= db1550_nand_res
,
192 .platform_data
= &db1550_nand_platdata
,
196 static struct au1550nd_platdata pb1550_nand_pd
= {
197 .parts
= db1550_nand_parts
,
198 .num_parts
= ARRAY_SIZE(db1550_nand_parts
),
199 .devwidth
= 0, /* x8 NAND default, needs fixing up */
202 static struct platform_device pb1550_nand_dev
= {
203 .name
= "au1550-nand",
205 .resource
= db1550_nand_res
,
206 .num_resources
= ARRAY_SIZE(db1550_nand_res
),
208 .platform_data
= &pb1550_nand_pd
,
212 static void __init
pb1550_nand_setup(void)
214 int boot_swapboot
= (au_readl(MEM_STSTAT
) & (0x7 << 1)) |
215 ((bcsr_read(BCSR_STATUS
) >> 6) & 0x1);
217 gpio_direction_input(206); /* de-assert NAND CS# */
218 switch (boot_swapboot
) {
219 case 0: case 2: case 8: case 0xC: case 0xD:
221 pb1550_nand_pd
.devwidth
= 1;
223 case 1: case 3: case 9: case 0xE: case 0xF:
224 /* x8 NAND, already set up */
225 platform_device_register(&pb1550_nand_dev
);
229 /**********************************************************************/
231 static struct resource au1550_psc0_res
[] = {
233 .start
= AU1550_PSC0_PHYS_ADDR
,
234 .end
= AU1550_PSC0_PHYS_ADDR
+ 0xfff,
235 .flags
= IORESOURCE_MEM
,
238 .start
= AU1550_PSC0_INT
,
239 .end
= AU1550_PSC0_INT
,
240 .flags
= IORESOURCE_IRQ
,
243 .start
= AU1550_DSCR_CMD0_PSC0_TX
,
244 .end
= AU1550_DSCR_CMD0_PSC0_TX
,
245 .flags
= IORESOURCE_DMA
,
248 .start
= AU1550_DSCR_CMD0_PSC0_RX
,
249 .end
= AU1550_DSCR_CMD0_PSC0_RX
,
250 .flags
= IORESOURCE_DMA
,
254 static void db1550_spi_cs_en(struct au1550_spi_info
*spi
, int cs
, int pol
)
257 bcsr_mod(BCSR_BOARD
, 0, BCSR_BOARD_SPISEL
);
259 bcsr_mod(BCSR_BOARD
, BCSR_BOARD_SPISEL
, 0);
262 static struct au1550_spi_info db1550_spi_platdata
= {
263 .mainclk_hz
= 48000000, /* PSC0 clock: max. 2.4MHz SPI clk */
265 .activate_cs
= db1550_spi_cs_en
,
268 static u64 spi_dmamask
= DMA_BIT_MASK(32);
270 static struct platform_device db1550_spi_dev
= {
272 .dma_mask
= &spi_dmamask
,
273 .coherent_dma_mask
= DMA_BIT_MASK(32),
274 .platform_data
= &db1550_spi_platdata
,
276 .name
= "au1550-spi",
277 .id
= 0, /* bus number */
278 .num_resources
= ARRAY_SIZE(au1550_psc0_res
),
279 .resource
= au1550_psc0_res
,
282 /**********************************************************************/
284 static struct resource au1550_psc1_res
[] = {
286 .start
= AU1550_PSC1_PHYS_ADDR
,
287 .end
= AU1550_PSC1_PHYS_ADDR
+ 0xfff,
288 .flags
= IORESOURCE_MEM
,
291 .start
= AU1550_PSC1_INT
,
292 .end
= AU1550_PSC1_INT
,
293 .flags
= IORESOURCE_IRQ
,
296 .start
= AU1550_DSCR_CMD0_PSC1_TX
,
297 .end
= AU1550_DSCR_CMD0_PSC1_TX
,
298 .flags
= IORESOURCE_DMA
,
301 .start
= AU1550_DSCR_CMD0_PSC1_RX
,
302 .end
= AU1550_DSCR_CMD0_PSC1_RX
,
303 .flags
= IORESOURCE_DMA
,
307 static struct platform_device db1550_ac97_dev
= {
308 .name
= "au1xpsc_ac97",
309 .id
= 1, /* PSC ID */
310 .num_resources
= ARRAY_SIZE(au1550_psc1_res
),
311 .resource
= au1550_psc1_res
,
315 static struct resource au1550_psc2_res
[] = {
317 .start
= AU1550_PSC2_PHYS_ADDR
,
318 .end
= AU1550_PSC2_PHYS_ADDR
+ 0xfff,
319 .flags
= IORESOURCE_MEM
,
322 .start
= AU1550_PSC2_INT
,
323 .end
= AU1550_PSC2_INT
,
324 .flags
= IORESOURCE_IRQ
,
327 .start
= AU1550_DSCR_CMD0_PSC2_TX
,
328 .end
= AU1550_DSCR_CMD0_PSC2_TX
,
329 .flags
= IORESOURCE_DMA
,
332 .start
= AU1550_DSCR_CMD0_PSC2_RX
,
333 .end
= AU1550_DSCR_CMD0_PSC2_RX
,
334 .flags
= IORESOURCE_DMA
,
338 static struct platform_device db1550_i2c_dev
= {
339 .name
= "au1xpsc_smbus",
340 .id
= 0, /* bus number */
341 .num_resources
= ARRAY_SIZE(au1550_psc2_res
),
342 .resource
= au1550_psc2_res
,
345 /**********************************************************************/
347 static struct resource au1550_psc3_res
[] = {
349 .start
= AU1550_PSC3_PHYS_ADDR
,
350 .end
= AU1550_PSC3_PHYS_ADDR
+ 0xfff,
351 .flags
= IORESOURCE_MEM
,
354 .start
= AU1550_PSC3_INT
,
355 .end
= AU1550_PSC3_INT
,
356 .flags
= IORESOURCE_IRQ
,
359 .start
= AU1550_DSCR_CMD0_PSC3_TX
,
360 .end
= AU1550_DSCR_CMD0_PSC3_TX
,
361 .flags
= IORESOURCE_DMA
,
364 .start
= AU1550_DSCR_CMD0_PSC3_RX
,
365 .end
= AU1550_DSCR_CMD0_PSC3_RX
,
366 .flags
= IORESOURCE_DMA
,
370 static struct platform_device db1550_i2s_dev
= {
371 .name
= "au1xpsc_i2s",
372 .id
= 3, /* PSC ID */
373 .num_resources
= ARRAY_SIZE(au1550_psc3_res
),
374 .resource
= au1550_psc3_res
,
377 /**********************************************************************/
379 static struct platform_device db1550_stac_dev
= {
380 .name
= "ac97-codec",
381 .id
= 1, /* on PSC1 */
384 static struct platform_device db1550_ac97dma_dev
= {
385 .name
= "au1xpsc-pcm",
386 .id
= 1, /* on PSC3 */
389 static struct platform_device db1550_i2sdma_dev
= {
390 .name
= "au1xpsc-pcm",
391 .id
= 3, /* on PSC3 */
394 static struct platform_device db1550_sndac97_dev
= {
395 .name
= "db1550-ac97",
398 static struct platform_device db1550_sndi2s_dev
= {
399 .name
= "db1550-i2s",
402 /**********************************************************************/
404 static int db1550_map_pci_irq(const struct pci_dev
*d
, u8 slot
, u8 pin
)
406 if ((slot
< 11) || (slot
> 13) || pin
== 0)
409 return (pin
== 1) ? AU1550_PCI_INTC
: 0xff;
412 case 1: return AU1550_PCI_INTB
;
413 case 2: return AU1550_PCI_INTC
;
414 case 3: return AU1550_PCI_INTD
;
415 case 4: return AU1550_PCI_INTA
;
420 case 1: return AU1550_PCI_INTA
;
421 case 2: return AU1550_PCI_INTB
;
422 case 3: return AU1550_PCI_INTC
;
423 case 4: return AU1550_PCI_INTD
;
429 static int pb1550_map_pci_irq(const struct pci_dev
*d
, u8 slot
, u8 pin
)
431 if ((slot
< 12) || (slot
> 13) || pin
== 0)
435 case 1: return AU1500_PCI_INTB
;
436 case 2: return AU1500_PCI_INTC
;
437 case 3: return AU1500_PCI_INTD
;
438 case 4: return AU1500_PCI_INTA
;
443 case 1: return AU1500_PCI_INTA
;
444 case 2: return AU1500_PCI_INTB
;
445 case 3: return AU1500_PCI_INTC
;
446 case 4: return AU1500_PCI_INTD
;
452 static struct resource alchemy_pci_host_res
[] = {
454 .start
= AU1500_PCI_PHYS_ADDR
,
455 .end
= AU1500_PCI_PHYS_ADDR
+ 0xfff,
456 .flags
= IORESOURCE_MEM
,
460 static struct alchemy_pci_platdata db1550_pci_pd
= {
461 .board_map_irq
= db1550_map_pci_irq
,
464 static struct platform_device db1550_pci_host_dev
= {
465 .dev
.platform_data
= &db1550_pci_pd
,
466 .name
= "alchemy-pci",
468 .num_resources
= ARRAY_SIZE(alchemy_pci_host_res
),
469 .resource
= alchemy_pci_host_res
,
472 /**********************************************************************/
474 static struct platform_device
*db1550_devs
[] __initdata
= {
486 /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
487 int __init
db1550_pci_setup(int id
)
490 db1550_pci_pd
.board_map_irq
= pb1550_map_pci_irq
;
491 return platform_device_register(&db1550_pci_host_dev
);
494 static void __init
db1550_devices(void)
496 alchemy_gpio_direction_output(203, 0); /* red led on */
498 irq_set_irq_type(AU1550_GPIO0_INT
, IRQ_TYPE_EDGE_BOTH
); /* CD0# */
499 irq_set_irq_type(AU1550_GPIO1_INT
, IRQ_TYPE_EDGE_BOTH
); /* CD1# */
500 irq_set_irq_type(AU1550_GPIO3_INT
, IRQ_TYPE_LEVEL_LOW
); /* CARD0# */
501 irq_set_irq_type(AU1550_GPIO5_INT
, IRQ_TYPE_LEVEL_LOW
); /* CARD1# */
502 irq_set_irq_type(AU1550_GPIO21_INT
, IRQ_TYPE_LEVEL_LOW
); /* STSCHG0# */
503 irq_set_irq_type(AU1550_GPIO22_INT
, IRQ_TYPE_LEVEL_LOW
); /* STSCHG1# */
505 db1x_register_pcmcia_socket(
506 AU1000_PCMCIA_ATTR_PHYS_ADDR
,
507 AU1000_PCMCIA_ATTR_PHYS_ADDR
+ 0x000400000 - 1,
508 AU1000_PCMCIA_MEM_PHYS_ADDR
,
509 AU1000_PCMCIA_MEM_PHYS_ADDR
+ 0x000400000 - 1,
510 AU1000_PCMCIA_IO_PHYS_ADDR
,
511 AU1000_PCMCIA_IO_PHYS_ADDR
+ 0x000010000 - 1,
512 AU1550_GPIO3_INT
, AU1550_GPIO0_INT
,
513 /*AU1550_GPIO21_INT*/0, 0, 0);
515 db1x_register_pcmcia_socket(
516 AU1000_PCMCIA_ATTR_PHYS_ADDR
+ 0x004000000,
517 AU1000_PCMCIA_ATTR_PHYS_ADDR
+ 0x004400000 - 1,
518 AU1000_PCMCIA_MEM_PHYS_ADDR
+ 0x004000000,
519 AU1000_PCMCIA_MEM_PHYS_ADDR
+ 0x004400000 - 1,
520 AU1000_PCMCIA_IO_PHYS_ADDR
+ 0x004000000,
521 AU1000_PCMCIA_IO_PHYS_ADDR
+ 0x004010000 - 1,
522 AU1550_GPIO5_INT
, AU1550_GPIO1_INT
,
523 /*AU1550_GPIO22_INT*/0, 0, 1);
525 platform_device_register(&db1550_nand_dev
);
527 alchemy_gpio_direction_output(202, 0); /* green led on */
530 static void __init
pb1550_devices(void)
532 irq_set_irq_type(AU1550_GPIO0_INT
, IRQ_TYPE_LEVEL_LOW
);
533 irq_set_irq_type(AU1550_GPIO1_INT
, IRQ_TYPE_LEVEL_LOW
);
534 irq_set_irq_type(AU1550_GPIO201_205_INT
, IRQ_TYPE_LEVEL_HIGH
);
536 /* enable both PCMCIA card irqs in the shared line */
537 alchemy_gpio2_enable_int(201); /* socket 0 card irq */
538 alchemy_gpio2_enable_int(202); /* socket 1 card irq */
540 /* Pb1550, like all others, also has statuschange irqs; however they're
541 * wired up on one of the Au1550's shared GPIO201_205 line, which also
542 * services the PCMCIA card interrupts. So we ignore statuschange and
543 * use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
544 * drivers are used to shared irqs and b) statuschange isn't really use-
547 db1x_register_pcmcia_socket(
548 AU1000_PCMCIA_ATTR_PHYS_ADDR
,
549 AU1000_PCMCIA_ATTR_PHYS_ADDR
+ 0x000400000 - 1,
550 AU1000_PCMCIA_MEM_PHYS_ADDR
,
551 AU1000_PCMCIA_MEM_PHYS_ADDR
+ 0x000400000 - 1,
552 AU1000_PCMCIA_IO_PHYS_ADDR
,
553 AU1000_PCMCIA_IO_PHYS_ADDR
+ 0x000010000 - 1,
554 AU1550_GPIO201_205_INT
, AU1550_GPIO0_INT
, 0, 0, 0);
556 db1x_register_pcmcia_socket(
557 AU1000_PCMCIA_ATTR_PHYS_ADDR
+ 0x008000000,
558 AU1000_PCMCIA_ATTR_PHYS_ADDR
+ 0x008400000 - 1,
559 AU1000_PCMCIA_MEM_PHYS_ADDR
+ 0x008000000,
560 AU1000_PCMCIA_MEM_PHYS_ADDR
+ 0x008400000 - 1,
561 AU1000_PCMCIA_IO_PHYS_ADDR
+ 0x008000000,
562 AU1000_PCMCIA_IO_PHYS_ADDR
+ 0x008010000 - 1,
563 AU1550_GPIO201_205_INT
, AU1550_GPIO1_INT
, 0, 0, 1);
568 int __init
db1550_dev_setup(void)
572 id
= (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI
)) != BCSR_WHOAMI_DB1550
);
574 i2c_register_board_info(0, db1550_i2c_devs
,
575 ARRAY_SIZE(db1550_i2c_devs
));
576 spi_register_board_info(db1550_spi_devs
,
577 ARRAY_SIZE(db1550_i2c_devs
));
579 /* Audio PSC clock is supplied by codecs (PSC1, 3) FIXME: platdata!! */
580 __raw_writel(PSC_SEL_CLK_SERCLK
,
581 (void __iomem
*)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR
) + PSC_SEL_OFFSET
);
583 __raw_writel(PSC_SEL_CLK_SERCLK
,
584 (void __iomem
*)KSEG1ADDR(AU1550_PSC3_PHYS_ADDR
) + PSC_SEL_OFFSET
);
586 /* SPI/I2C use internally supplied 50MHz source */
587 __raw_writel(PSC_SEL_CLK_INTCLK
,
588 (void __iomem
*)KSEG1ADDR(AU1550_PSC0_PHYS_ADDR
) + PSC_SEL_OFFSET
);
590 __raw_writel(PSC_SEL_CLK_INTCLK
,
591 (void __iomem
*)KSEG1ADDR(AU1550_PSC2_PHYS_ADDR
) + PSC_SEL_OFFSET
);
594 id
? pb1550_devices() : db1550_devices();
596 swapped
= bcsr_read(BCSR_STATUS
) &
597 (id
? BCSR_STATUS_PB1550_SWAPBOOT
: BCSR_STATUS_DB1000_SWAPBOOT
);
598 db1x_register_norflash(128 << 20, 4, swapped
);
600 return platform_add_devices(db1550_devs
, ARRAY_SIZE(db1550_devs
));