1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
3 * Copyright 2003-2008 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://www.simtec.co.uk/products/EB2410ITX/
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/list.h>
17 #include <linux/timer.h>
18 #include <linux/init.h>
19 #include <linux/gpio.h>
20 #include <linux/sysdev.h>
21 #include <linux/serial_core.h>
22 #include <linux/platform_device.h>
23 #include <linux/dm9000.h>
24 #include <linux/ata_platform.h>
25 #include <linux/i2c.h>
28 #include <net/ax88796.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
34 #include <mach/bast-map.h>
35 #include <mach/bast-irq.h>
36 #include <mach/bast-cpld.h>
38 #include <mach/hardware.h>
40 #include <asm/mach-types.h>
42 //#include <asm/debug-ll.h>
43 #include <plat/regs-serial.h>
44 #include <mach/regs-gpio.h>
45 #include <mach/regs-mem.h>
46 #include <mach/regs-lcd.h>
48 #include <plat/hwmon.h>
49 #include <plat/nand.h>
53 #include <linux/mtd/mtd.h>
54 #include <linux/mtd/nand.h>
55 #include <linux/mtd/nand_ecc.h>
56 #include <linux/mtd/partitions.h>
58 #include <linux/serial_8250.h>
60 #include <plat/clock.h>
61 #include <plat/devs.h>
63 #include <plat/cpu-freq.h>
64 #include <plat/audio-simtec.h>
66 #include "usb-simtec.h"
67 #include "nor-simtec.h"
69 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
71 /* macros for virtual address mods for the io space entries */
72 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
73 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
74 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
75 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
77 /* macros to modify the physical addresses for io space */
79 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
80 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
81 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
82 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
84 static struct map_desc bast_iodesc
[] __initdata
= {
87 .virtual = (u32
)S3C24XX_VA_ISA_BYTE
,
88 .pfn
= PA_CS2(BAST_PA_ISAIO
),
92 .virtual = (u32
)S3C24XX_VA_ISA_WORD
,
93 .pfn
= PA_CS3(BAST_PA_ISAIO
),
97 /* bast CPLD control registers, and external interrupt controls */
99 .virtual = (u32
)BAST_VA_CTRL1
,
100 .pfn
= __phys_to_pfn(BAST_PA_CTRL1
),
104 .virtual = (u32
)BAST_VA_CTRL2
,
105 .pfn
= __phys_to_pfn(BAST_PA_CTRL2
),
109 .virtual = (u32
)BAST_VA_CTRL3
,
110 .pfn
= __phys_to_pfn(BAST_PA_CTRL3
),
114 .virtual = (u32
)BAST_VA_CTRL4
,
115 .pfn
= __phys_to_pfn(BAST_PA_CTRL4
),
121 .virtual = (u32
)BAST_VA_PC104_IRQREQ
,
122 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQREQ
),
126 .virtual = (u32
)BAST_VA_PC104_IRQRAW
,
127 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQRAW
),
131 .virtual = (u32
)BAST_VA_PC104_IRQMASK
,
132 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQMASK
),
137 /* peripheral space... one for each of fast/slow/byte/16bit */
138 /* note, ide is only decoded in word space, even though some registers
142 { VA_C2(BAST_VA_ISAIO
), PA_CS2(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
143 { VA_C2(BAST_VA_ISAMEM
), PA_CS2(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
144 { VA_C2(BAST_VA_SUPERIO
), PA_CS2(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
147 { VA_C3(BAST_VA_ISAIO
), PA_CS3(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
148 { VA_C3(BAST_VA_ISAMEM
), PA_CS3(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
149 { VA_C3(BAST_VA_SUPERIO
), PA_CS3(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
152 { VA_C4(BAST_VA_ISAIO
), PA_CS4(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
153 { VA_C4(BAST_VA_ISAMEM
), PA_CS4(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
154 { VA_C4(BAST_VA_SUPERIO
), PA_CS4(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
157 { VA_C5(BAST_VA_ISAIO
), PA_CS5(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
158 { VA_C5(BAST_VA_ISAMEM
), PA_CS5(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
159 { VA_C5(BAST_VA_SUPERIO
), PA_CS5(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
162 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
163 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
164 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
166 static struct s3c24xx_uart_clksrc bast_serial_clocks
[] = {
182 static struct s3c2410_uartcfg bast_uartcfgs
[] __initdata
= {
189 .clocks
= bast_serial_clocks
,
190 .clocks_size
= ARRAY_SIZE(bast_serial_clocks
),
198 .clocks
= bast_serial_clocks
,
199 .clocks_size
= ARRAY_SIZE(bast_serial_clocks
),
201 /* port 2 is not actually used */
208 .clocks
= bast_serial_clocks
,
209 .clocks_size
= ARRAY_SIZE(bast_serial_clocks
),
213 /* NAND Flash on BAST board */
216 static int bast_pm_suspend(struct sys_device
*sd
, pm_message_t state
)
218 /* ensure that an nRESET is not generated on resume. */
219 gpio_direction_output(S3C2410_GPA(21), 1);
223 static int bast_pm_resume(struct sys_device
*sd
)
225 s3c2410_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT
);
230 #define bast_pm_suspend NULL
231 #define bast_pm_resume NULL
234 static struct sysdev_class bast_pm_sysclass
= {
236 .suspend
= bast_pm_suspend
,
237 .resume
= bast_pm_resume
,
240 static struct sys_device bast_pm_sysdev
= {
241 .cls
= &bast_pm_sysclass
,
244 static int smartmedia_map
[] = { 0 };
245 static int chip0_map
[] = { 1 };
246 static int chip1_map
[] = { 2 };
247 static int chip2_map
[] = { 3 };
249 static struct mtd_partition __initdata bast_default_nand_part
[] = {
251 .name
= "Boot Agent",
257 .size
= SZ_4M
- SZ_16K
,
263 .size
= MTDPART_SIZ_FULL
,
267 /* the bast has 4 selectable slots for nand-flash, the three
268 * on-board chip areas, as well as the external SmartMedia
271 * Note, there is no current hot-plug support for the SmartMedia
275 static struct s3c2410_nand_set __initdata bast_nand_sets
[] = {
277 .name
= "SmartMedia",
279 .nr_map
= smartmedia_map
,
280 .options
= NAND_SCAN_SILENT_NODEV
,
281 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
282 .partitions
= bast_default_nand_part
,
288 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
289 .partitions
= bast_default_nand_part
,
295 .options
= NAND_SCAN_SILENT_NODEV
,
296 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
297 .partitions
= bast_default_nand_part
,
303 .options
= NAND_SCAN_SILENT_NODEV
,
304 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
305 .partitions
= bast_default_nand_part
,
309 static void bast_nand_select(struct s3c2410_nand_set
*set
, int slot
)
313 slot
= set
->nr_map
[slot
] & 3;
315 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
316 slot
, set
, set
->nr_map
);
318 tmp
= __raw_readb(BAST_VA_CTRL2
);
319 tmp
&= BAST_CPLD_CTLR2_IDERST
;
321 tmp
|= BAST_CPLD_CTRL2_WNAND
;
323 pr_debug("bast_nand: ctrl2 now %02x\n", tmp
);
325 __raw_writeb(tmp
, BAST_VA_CTRL2
);
328 static struct s3c2410_platform_nand __initdata bast_nand_info
= {
332 .nr_sets
= ARRAY_SIZE(bast_nand_sets
),
333 .sets
= bast_nand_sets
,
334 .select_chip
= bast_nand_select
,
339 static struct resource bast_dm9k_resource
[] = {
341 .start
= S3C2410_CS5
+ BAST_PA_DM9000
,
342 .end
= S3C2410_CS5
+ BAST_PA_DM9000
+ 3,
343 .flags
= IORESOURCE_MEM
,
346 .start
= S3C2410_CS5
+ BAST_PA_DM9000
+ 0x40,
347 .end
= S3C2410_CS5
+ BAST_PA_DM9000
+ 0x40 + 0x3f,
348 .flags
= IORESOURCE_MEM
,
353 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHLEVEL
,
358 /* for the moment we limit ourselves to 16bit IO until some
359 * better IO routines can be written and tested
362 static struct dm9000_plat_data bast_dm9k_platdata
= {
363 .flags
= DM9000_PLATF_16BITONLY
,
366 static struct platform_device bast_device_dm9k
= {
369 .num_resources
= ARRAY_SIZE(bast_dm9k_resource
),
370 .resource
= bast_dm9k_resource
,
372 .platform_data
= &bast_dm9k_platdata
,
378 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
379 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
380 #define SERIAL_CLK (1843200)
382 static struct plat_serial8250_port bast_sio_data
[] = {
384 .mapbase
= SERIAL_BASE
+ 0x2f8,
385 .irq
= IRQ_PCSERIAL1
,
386 .flags
= SERIAL_FLAGS
,
389 .uartclk
= SERIAL_CLK
,
392 .mapbase
= SERIAL_BASE
+ 0x3f8,
393 .irq
= IRQ_PCSERIAL2
,
394 .flags
= SERIAL_FLAGS
,
397 .uartclk
= SERIAL_CLK
,
402 static struct platform_device bast_sio
= {
403 .name
= "serial8250",
404 .id
= PLAT8250_DEV_PLATFORM
,
406 .platform_data
= &bast_sio_data
,
410 /* we have devices on the bus which cannot work much over the
411 * standard 100KHz i2c bus frequency
414 static struct s3c2410_platform_i2c __initdata bast_i2c_info
= {
417 .frequency
= 100*1000,
420 /* Asix AX88796 10/100 ethernet controller */
422 static struct ax_plat_data bast_asix_platdata
= {
423 .flags
= AXFLG_MAC_FROMDEV
,
429 static struct resource bast_asix_resource
[] = {
431 .start
= S3C2410_CS5
+ BAST_PA_ASIXNET
,
432 .end
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x18 * 0x20) - 1,
433 .flags
= IORESOURCE_MEM
,
436 .start
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1f * 0x20),
437 .end
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1f * 0x20),
438 .flags
= IORESOURCE_MEM
,
443 .flags
= IORESOURCE_IRQ
447 static struct platform_device bast_device_asix
= {
450 .num_resources
= ARRAY_SIZE(bast_asix_resource
),
451 .resource
= bast_asix_resource
,
453 .platform_data
= &bast_asix_platdata
457 /* Asix AX88796 10/100 ethernet controller parallel port */
459 static struct resource bast_asixpp_resource
[] = {
461 .start
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x18 * 0x20),
462 .end
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1b * 0x20) - 1,
463 .flags
= IORESOURCE_MEM
,
467 static struct platform_device bast_device_axpp
= {
468 .name
= "ax88796-pp",
470 .num_resources
= ARRAY_SIZE(bast_asixpp_resource
),
471 .resource
= bast_asixpp_resource
,
474 /* LCD/VGA controller */
476 static struct s3c2410fb_display __initdata bast_lcd_info
[] = {
478 .type
= S3C2410_LCDCON1_TFT
,
493 .lcdcon5
= 0x00014b02,
496 .type
= S3C2410_LCDCON1_TFT
,
511 .lcdcon5
= 0x00014b02,
514 .type
= S3C2410_LCDCON1_TFT
,
529 .lcdcon5
= 0x00014b02,
533 /* LCD/VGA controller */
535 static struct s3c2410fb_mach_info __initdata bast_fb_info
= {
537 .displays
= bast_lcd_info
,
538 .num_displays
= ARRAY_SIZE(bast_lcd_info
),
539 .default_display
= 1,
542 /* I2C devices fitted. */
544 static struct i2c_board_info bast_i2c_devs
[] __initdata
= {
546 I2C_BOARD_INFO("tlv320aic23", 0x1a),
548 I2C_BOARD_INFO("simtec-pmu", 0x6b),
550 I2C_BOARD_INFO("ch7013", 0x75),
554 static struct s3c_hwmon_pdata bast_hwmon_info
= {
555 /* LCD contrast (0-6.6V) */
556 .in
[0] = &(struct s3c_hwmon_chcfg
) {
557 .name
= "lcd-contrast",
561 /* LED current feedback */
562 .in
[1] = &(struct s3c_hwmon_chcfg
) {
563 .name
= "led-feedback",
567 /* LCD feedback (0-6.6V) */
568 .in
[2] = &(struct s3c_hwmon_chcfg
) {
569 .name
= "lcd-feedback",
573 /* Vcore (1.8-2.0V), Vref 3.3V */
574 .in
[3] = &(struct s3c_hwmon_chcfg
) {
581 /* Standard BAST devices */
582 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
584 static struct platform_device
*bast_devices
[] __initdata
= {
599 static struct clk
*bast_clocks
[] __initdata
= {
607 static struct s3c_cpufreq_board __initdata bast_cpufreq
= {
608 .refresh
= 7800, /* 7.8usec */
613 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio
= {
618 static void __init
bast_map_io(void)
620 /* initialise the clocks */
622 s3c24xx_dclk0
.parent
= &clk_upll
;
623 s3c24xx_dclk0
.rate
= 12*1000*1000;
625 s3c24xx_dclk1
.parent
= &clk_upll
;
626 s3c24xx_dclk1
.rate
= 24*1000*1000;
628 s3c24xx_clkout0
.parent
= &s3c24xx_dclk0
;
629 s3c24xx_clkout1
.parent
= &s3c24xx_dclk1
;
631 s3c24xx_uclk
.parent
= &s3c24xx_clkout1
;
633 s3c24xx_register_clocks(bast_clocks
, ARRAY_SIZE(bast_clocks
));
635 s3c_device_hwmon
.dev
.platform_data
= &bast_hwmon_info
;
637 s3c24xx_init_io(bast_iodesc
, ARRAY_SIZE(bast_iodesc
));
638 s3c24xx_init_clocks(0);
639 s3c24xx_init_uarts(bast_uartcfgs
, ARRAY_SIZE(bast_uartcfgs
));
642 static void __init
bast_init(void)
644 sysdev_class_register(&bast_pm_sysclass
);
645 sysdev_register(&bast_pm_sysdev
);
647 s3c_i2c0_set_platdata(&bast_i2c_info
);
648 s3c_nand_set_platdata(&bast_nand_info
);
649 s3c24xx_fb_set_platdata(&bast_fb_info
);
650 platform_add_devices(bast_devices
, ARRAY_SIZE(bast_devices
));
652 i2c_register_board_info(0, bast_i2c_devs
,
653 ARRAY_SIZE(bast_i2c_devs
));
657 simtec_audio_add(NULL
, true, &bast_audio
);
659 WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
661 s3c_cpufreq_setboard(&bast_cpufreq
);
664 MACHINE_START(BAST
, "Simtec-BAST")
665 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
666 .phys_io
= S3C2410_PA_UART
,
667 .io_pg_offst
= (((u32
)S3C24XX_VA_UART
) >> 18) & 0xfffc,
668 .boot_params
= S3C2410_SDRAM_PA
+ 0x100,
669 .map_io
= bast_map_io
,
670 .init_irq
= s3c24xx_init_irq
,
671 .init_machine
= bast_init
,
672 .timer
= &s3c24xx_timer
,