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/syscore_ops.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>
27 #include <linux/serial_8250.h>
29 #include <linux/mtd/mtd.h>
30 #include <linux/mtd/nand.h>
31 #include <linux/mtd/nand_ecc.h>
32 #include <linux/mtd/partitions.h>
34 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
35 #include <linux/platform_data/hwmon-s3c.h>
36 #include <linux/platform_data/i2c-s3c2410.h>
37 #include <linux/platform_data/mtd-nand-s3c2410.h>
39 #include <net/ax88796.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
45 #include <asm/mach-types.h>
48 #include <mach/hardware.h>
49 #include <mach/regs-gpio.h>
50 #include <mach/regs-lcd.h>
51 #include <mach/gpio-samsung.h>
53 #include <plat/clock.h>
55 #include <plat/cpu-freq.h>
56 #include <plat/devs.h>
57 #include <plat/gpio-cfg.h>
58 #include <plat/regs-serial.h>
59 #include <plat/samsung-time.h>
65 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
67 /* macros for virtual address mods for the io space entries */
68 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
69 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
70 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
71 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
73 /* macros to modify the physical addresses for io space */
75 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
76 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
77 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
78 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
80 static struct map_desc bast_iodesc
[] __initdata
= {
83 .virtual = (u32
)S3C24XX_VA_ISA_BYTE
,
84 .pfn
= PA_CS2(BAST_PA_ISAIO
),
88 .virtual = (u32
)S3C24XX_VA_ISA_WORD
,
89 .pfn
= PA_CS3(BAST_PA_ISAIO
),
93 /* bast CPLD control registers, and external interrupt controls */
95 .virtual = (u32
)BAST_VA_CTRL1
,
96 .pfn
= __phys_to_pfn(BAST_PA_CTRL1
),
100 .virtual = (u32
)BAST_VA_CTRL2
,
101 .pfn
= __phys_to_pfn(BAST_PA_CTRL2
),
105 .virtual = (u32
)BAST_VA_CTRL3
,
106 .pfn
= __phys_to_pfn(BAST_PA_CTRL3
),
110 .virtual = (u32
)BAST_VA_CTRL4
,
111 .pfn
= __phys_to_pfn(BAST_PA_CTRL4
),
117 .virtual = (u32
)BAST_VA_PC104_IRQREQ
,
118 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQREQ
),
122 .virtual = (u32
)BAST_VA_PC104_IRQRAW
,
123 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQRAW
),
127 .virtual = (u32
)BAST_VA_PC104_IRQMASK
,
128 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQMASK
),
133 /* peripheral space... one for each of fast/slow/byte/16bit */
134 /* note, ide is only decoded in word space, even though some registers
138 { VA_C2(BAST_VA_ISAIO
), PA_CS2(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
139 { VA_C2(BAST_VA_ISAMEM
), PA_CS2(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
140 { VA_C2(BAST_VA_SUPERIO
), PA_CS2(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
143 { VA_C3(BAST_VA_ISAIO
), PA_CS3(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
144 { VA_C3(BAST_VA_ISAMEM
), PA_CS3(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
145 { VA_C3(BAST_VA_SUPERIO
), PA_CS3(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
148 { VA_C4(BAST_VA_ISAIO
), PA_CS4(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
149 { VA_C4(BAST_VA_ISAMEM
), PA_CS4(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
150 { VA_C4(BAST_VA_SUPERIO
), PA_CS4(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
153 { VA_C5(BAST_VA_ISAIO
), PA_CS5(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
154 { VA_C5(BAST_VA_ISAMEM
), PA_CS5(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
155 { VA_C5(BAST_VA_SUPERIO
), PA_CS5(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
158 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
159 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
160 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
162 static struct s3c2410_uartcfg bast_uartcfgs
[] __initdata
= {
177 /* port 2 is not actually used */
187 /* NAND Flash on BAST board */
190 static int bast_pm_suspend(void)
192 /* ensure that an nRESET is not generated on resume. */
193 gpio_direction_output(S3C2410_GPA(21), 1);
197 static void bast_pm_resume(void)
199 s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT
);
203 #define bast_pm_suspend NULL
204 #define bast_pm_resume NULL
207 static struct syscore_ops bast_pm_syscore_ops
= {
208 .suspend
= bast_pm_suspend
,
209 .resume
= bast_pm_resume
,
212 static int smartmedia_map
[] = { 0 };
213 static int chip0_map
[] = { 1 };
214 static int chip1_map
[] = { 2 };
215 static int chip2_map
[] = { 3 };
217 static struct mtd_partition __initdata bast_default_nand_part
[] = {
219 .name
= "Boot Agent",
225 .size
= SZ_4M
- SZ_16K
,
231 .size
= MTDPART_SIZ_FULL
,
235 /* the bast has 4 selectable slots for nand-flash, the three
236 * on-board chip areas, as well as the external SmartMedia
239 * Note, there is no current hot-plug support for the SmartMedia
243 static struct s3c2410_nand_set __initdata bast_nand_sets
[] = {
245 .name
= "SmartMedia",
247 .nr_map
= smartmedia_map
,
248 .options
= NAND_SCAN_SILENT_NODEV
,
249 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
250 .partitions
= bast_default_nand_part
,
256 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
257 .partitions
= bast_default_nand_part
,
263 .options
= NAND_SCAN_SILENT_NODEV
,
264 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
265 .partitions
= bast_default_nand_part
,
271 .options
= NAND_SCAN_SILENT_NODEV
,
272 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
273 .partitions
= bast_default_nand_part
,
277 static void bast_nand_select(struct s3c2410_nand_set
*set
, int slot
)
281 slot
= set
->nr_map
[slot
] & 3;
283 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
284 slot
, set
, set
->nr_map
);
286 tmp
= __raw_readb(BAST_VA_CTRL2
);
287 tmp
&= BAST_CPLD_CTLR2_IDERST
;
289 tmp
|= BAST_CPLD_CTRL2_WNAND
;
291 pr_debug("bast_nand: ctrl2 now %02x\n", tmp
);
293 __raw_writeb(tmp
, BAST_VA_CTRL2
);
296 static struct s3c2410_platform_nand __initdata bast_nand_info
= {
300 .nr_sets
= ARRAY_SIZE(bast_nand_sets
),
301 .sets
= bast_nand_sets
,
302 .select_chip
= bast_nand_select
,
307 static struct resource bast_dm9k_resource
[] = {
308 [0] = DEFINE_RES_MEM(S3C2410_CS5
+ BAST_PA_DM9000
, 4),
309 [1] = DEFINE_RES_MEM(S3C2410_CS5
+ BAST_PA_DM9000
+ 0x40, 0x40),
310 [2] = DEFINE_RES_NAMED(BAST_IRQ_DM9000
, 1, NULL
, IORESOURCE_IRQ \
311 | IORESOURCE_IRQ_HIGHLEVEL
),
314 /* for the moment we limit ourselves to 16bit IO until some
315 * better IO routines can be written and tested
318 static struct dm9000_plat_data bast_dm9k_platdata
= {
319 .flags
= DM9000_PLATF_16BITONLY
,
322 static struct platform_device bast_device_dm9k
= {
325 .num_resources
= ARRAY_SIZE(bast_dm9k_resource
),
326 .resource
= bast_dm9k_resource
,
328 .platform_data
= &bast_dm9k_platdata
,
334 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
335 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
336 #define SERIAL_CLK (1843200)
338 static struct plat_serial8250_port bast_sio_data
[] = {
340 .mapbase
= SERIAL_BASE
+ 0x2f8,
341 .irq
= BAST_IRQ_PCSERIAL1
,
342 .flags
= SERIAL_FLAGS
,
345 .uartclk
= SERIAL_CLK
,
348 .mapbase
= SERIAL_BASE
+ 0x3f8,
349 .irq
= BAST_IRQ_PCSERIAL2
,
350 .flags
= SERIAL_FLAGS
,
353 .uartclk
= SERIAL_CLK
,
358 static struct platform_device bast_sio
= {
359 .name
= "serial8250",
360 .id
= PLAT8250_DEV_PLATFORM
,
362 .platform_data
= &bast_sio_data
,
366 /* we have devices on the bus which cannot work much over the
367 * standard 100KHz i2c bus frequency
370 static struct s3c2410_platform_i2c __initdata bast_i2c_info
= {
373 .frequency
= 100*1000,
376 /* Asix AX88796 10/100 ethernet controller */
378 static struct ax_plat_data bast_asix_platdata
= {
379 .flags
= AXFLG_MAC_FROMDEV
,
385 static struct resource bast_asix_resource
[] = {
386 [0] = DEFINE_RES_MEM(S3C2410_CS5
+ BAST_PA_ASIXNET
, 0x18 * 0x20),
387 [1] = DEFINE_RES_MEM(S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1f * 0x20), 1),
388 [2] = DEFINE_RES_IRQ(BAST_IRQ_ASIX
),
391 static struct platform_device bast_device_asix
= {
394 .num_resources
= ARRAY_SIZE(bast_asix_resource
),
395 .resource
= bast_asix_resource
,
397 .platform_data
= &bast_asix_platdata
401 /* Asix AX88796 10/100 ethernet controller parallel port */
403 static struct resource bast_asixpp_resource
[] = {
404 [0] = DEFINE_RES_MEM(S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x18 * 0x20), \
408 static struct platform_device bast_device_axpp
= {
409 .name
= "ax88796-pp",
411 .num_resources
= ARRAY_SIZE(bast_asixpp_resource
),
412 .resource
= bast_asixpp_resource
,
415 /* LCD/VGA controller */
417 static struct s3c2410fb_display __initdata bast_lcd_info
[] = {
419 .type
= S3C2410_LCDCON1_TFT
,
434 .lcdcon5
= 0x00014b02,
437 .type
= S3C2410_LCDCON1_TFT
,
452 .lcdcon5
= 0x00014b02,
455 .type
= S3C2410_LCDCON1_TFT
,
470 .lcdcon5
= 0x00014b02,
474 /* LCD/VGA controller */
476 static struct s3c2410fb_mach_info __initdata bast_fb_info
= {
478 .displays
= bast_lcd_info
,
479 .num_displays
= ARRAY_SIZE(bast_lcd_info
),
480 .default_display
= 1,
483 /* I2C devices fitted. */
485 static struct i2c_board_info bast_i2c_devs
[] __initdata
= {
487 I2C_BOARD_INFO("tlv320aic23", 0x1a),
489 I2C_BOARD_INFO("simtec-pmu", 0x6b),
491 I2C_BOARD_INFO("ch7013", 0x75),
495 static struct s3c_hwmon_pdata bast_hwmon_info
= {
496 /* LCD contrast (0-6.6V) */
497 .in
[0] = &(struct s3c_hwmon_chcfg
) {
498 .name
= "lcd-contrast",
502 /* LED current feedback */
503 .in
[1] = &(struct s3c_hwmon_chcfg
) {
504 .name
= "led-feedback",
508 /* LCD feedback (0-6.6V) */
509 .in
[2] = &(struct s3c_hwmon_chcfg
) {
510 .name
= "lcd-feedback",
514 /* Vcore (1.8-2.0V), Vref 3.3V */
515 .in
[3] = &(struct s3c_hwmon_chcfg
) {
522 /* Standard BAST devices */
523 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
525 static struct platform_device
*bast_devices
[] __initdata
= {
540 static struct clk
*bast_clocks
[] __initdata
= {
548 static struct s3c_cpufreq_board __initdata bast_cpufreq
= {
549 .refresh
= 7800, /* 7.8usec */
554 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio
= {
559 static void __init
bast_map_io(void)
561 /* initialise the clocks */
563 s3c24xx_dclk0
.parent
= &clk_upll
;
564 s3c24xx_dclk0
.rate
= 12*1000*1000;
566 s3c24xx_dclk1
.parent
= &clk_upll
;
567 s3c24xx_dclk1
.rate
= 24*1000*1000;
569 s3c24xx_clkout0
.parent
= &s3c24xx_dclk0
;
570 s3c24xx_clkout1
.parent
= &s3c24xx_dclk1
;
572 s3c24xx_uclk
.parent
= &s3c24xx_clkout1
;
574 s3c24xx_register_clocks(bast_clocks
, ARRAY_SIZE(bast_clocks
));
576 s3c_hwmon_set_platdata(&bast_hwmon_info
);
578 s3c24xx_init_io(bast_iodesc
, ARRAY_SIZE(bast_iodesc
));
579 s3c24xx_init_clocks(0);
580 s3c24xx_init_uarts(bast_uartcfgs
, ARRAY_SIZE(bast_uartcfgs
));
581 samsung_set_timer_source(SAMSUNG_PWM3
, SAMSUNG_PWM4
);
584 static void __init
bast_init(void)
586 register_syscore_ops(&bast_pm_syscore_ops
);
588 s3c_i2c0_set_platdata(&bast_i2c_info
);
589 s3c_nand_set_platdata(&bast_nand_info
);
590 s3c24xx_fb_set_platdata(&bast_fb_info
);
591 platform_add_devices(bast_devices
, ARRAY_SIZE(bast_devices
));
593 i2c_register_board_info(0, bast_i2c_devs
,
594 ARRAY_SIZE(bast_i2c_devs
));
598 simtec_audio_add(NULL
, true, &bast_audio
);
600 WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
602 s3c_cpufreq_setboard(&bast_cpufreq
);
605 MACHINE_START(BAST
, "Simtec-BAST")
606 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
607 .atag_offset
= 0x100,
608 .map_io
= bast_map_io
,
609 .init_irq
= s3c2410_init_irq
,
610 .init_machine
= bast_init
,
611 .init_time
= samsung_timer_init
,
612 .restart
= s3c2410_restart
,