1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
3 * Copyright (c) 2003-2005 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/sysdev.h>
20 #include <linux/serial_core.h>
21 #include <linux/platform_device.h>
22 #include <linux/dm9000.h>
23 #include <linux/ata_platform.h>
25 #include <net/ax88796.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/irq.h>
31 #include <asm/arch/bast-map.h>
32 #include <asm/arch/bast-irq.h>
33 #include <asm/arch/bast-cpld.h>
35 #include <asm/hardware.h>
38 #include <asm/mach-types.h>
40 //#include <asm/debug-ll.h>
41 #include <asm/plat-s3c/regs-serial.h>
42 #include <asm/arch/regs-gpio.h>
43 #include <asm/arch/regs-mem.h>
44 #include <asm/arch/regs-lcd.h>
46 #include <asm/plat-s3c/nand.h>
47 #include <asm/plat-s3c/iic.h>
48 #include <asm/arch/fb.h>
50 #include <linux/mtd/mtd.h>
51 #include <linux/mtd/nand.h>
52 #include <linux/mtd/nand_ecc.h>
53 #include <linux/mtd/partitions.h>
55 #include <linux/serial_8250.h>
57 #include <asm/plat-s3c24xx/clock.h>
58 #include <asm/plat-s3c24xx/devs.h>
59 #include <asm/plat-s3c24xx/cpu.h>
61 #include "usb-simtec.h"
62 #include "nor-simtec.h"
64 #define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
66 /* macros for virtual address mods for the io space entries */
67 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
68 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
69 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
70 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
72 /* macros to modify the physical addresses for io space */
74 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
75 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
76 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
77 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
79 static struct map_desc bast_iodesc
[] __initdata
= {
82 .virtual = (u32
)S3C24XX_VA_ISA_BYTE
,
83 .pfn
= PA_CS2(BAST_PA_ISAIO
),
87 .virtual = (u32
)S3C24XX_VA_ISA_WORD
,
88 .pfn
= PA_CS3(BAST_PA_ISAIO
),
92 /* bast CPLD control registers, and external interrupt controls */
94 .virtual = (u32
)BAST_VA_CTRL1
,
95 .pfn
= __phys_to_pfn(BAST_PA_CTRL1
),
99 .virtual = (u32
)BAST_VA_CTRL2
,
100 .pfn
= __phys_to_pfn(BAST_PA_CTRL2
),
104 .virtual = (u32
)BAST_VA_CTRL3
,
105 .pfn
= __phys_to_pfn(BAST_PA_CTRL3
),
109 .virtual = (u32
)BAST_VA_CTRL4
,
110 .pfn
= __phys_to_pfn(BAST_PA_CTRL4
),
116 .virtual = (u32
)BAST_VA_PC104_IRQREQ
,
117 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQREQ
),
121 .virtual = (u32
)BAST_VA_PC104_IRQRAW
,
122 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQRAW
),
126 .virtual = (u32
)BAST_VA_PC104_IRQMASK
,
127 .pfn
= __phys_to_pfn(BAST_PA_PC104_IRQMASK
),
132 /* peripheral space... one for each of fast/slow/byte/16bit */
133 /* note, ide is only decoded in word space, even though some registers
137 { VA_C2(BAST_VA_ISAIO
), PA_CS2(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
138 { VA_C2(BAST_VA_ISAMEM
), PA_CS2(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
139 { VA_C2(BAST_VA_SUPERIO
), PA_CS2(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
142 { VA_C3(BAST_VA_ISAIO
), PA_CS3(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
143 { VA_C3(BAST_VA_ISAMEM
), PA_CS3(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
144 { VA_C3(BAST_VA_SUPERIO
), PA_CS3(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
147 { VA_C4(BAST_VA_ISAIO
), PA_CS4(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
148 { VA_C4(BAST_VA_ISAMEM
), PA_CS4(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
149 { VA_C4(BAST_VA_SUPERIO
), PA_CS4(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
152 { VA_C5(BAST_VA_ISAIO
), PA_CS5(BAST_PA_ISAIO
), SZ_16M
, MT_DEVICE
},
153 { VA_C5(BAST_VA_ISAMEM
), PA_CS5(BAST_PA_ISAMEM
), SZ_16M
, MT_DEVICE
},
154 { VA_C5(BAST_VA_SUPERIO
), PA_CS5(BAST_PA_SUPERIO
), SZ_1M
, MT_DEVICE
},
157 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
158 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
159 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
161 static struct s3c24xx_uart_clksrc bast_serial_clocks
[] = {
177 static struct s3c2410_uartcfg bast_uartcfgs
[] __initdata
= {
184 .clocks
= bast_serial_clocks
,
185 .clocks_size
= ARRAY_SIZE(bast_serial_clocks
),
193 .clocks
= bast_serial_clocks
,
194 .clocks_size
= ARRAY_SIZE(bast_serial_clocks
),
196 /* port 2 is not actually used */
203 .clocks
= bast_serial_clocks
,
204 .clocks_size
= ARRAY_SIZE(bast_serial_clocks
),
208 /* NAND Flash on BAST board */
211 static int bast_pm_suspend(struct sys_device
*sd
, pm_message_t state
)
213 /* ensure that an nRESET is not generated on resume. */
214 s3c2410_gpio_setpin(S3C2410_GPA21
, 1);
215 s3c2410_gpio_cfgpin(S3C2410_GPA21
, S3C2410_GPA21_OUT
);
220 static int bast_pm_resume(struct sys_device
*sd
)
222 s3c2410_gpio_cfgpin(S3C2410_GPA21
, S3C2410_GPA21_nRSTOUT
);
227 #define bast_pm_suspend NULL
228 #define bast_pm_resume NULL
231 static struct sysdev_class bast_pm_sysclass
= {
233 .suspend
= bast_pm_suspend
,
234 .resume
= bast_pm_resume
,
237 static struct sys_device bast_pm_sysdev
= {
238 .cls
= &bast_pm_sysclass
,
241 static int smartmedia_map
[] = { 0 };
242 static int chip0_map
[] = { 1 };
243 static int chip1_map
[] = { 2 };
244 static int chip2_map
[] = { 3 };
246 static struct mtd_partition bast_default_nand_part
[] = {
248 .name
= "Boot Agent",
254 .size
= SZ_4M
- SZ_16K
,
260 .size
= MTDPART_SIZ_FULL
,
264 /* the bast has 4 selectable slots for nand-flash, the three
265 * on-board chip areas, as well as the external SmartMedia
268 * Note, there is no current hot-plug support for the SmartMedia
272 static struct s3c2410_nand_set bast_nand_sets
[] = {
274 .name
= "SmartMedia",
276 .nr_map
= smartmedia_map
,
277 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
278 .partitions
= bast_default_nand_part
,
284 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
285 .partitions
= bast_default_nand_part
,
291 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
292 .partitions
= bast_default_nand_part
,
298 .nr_partitions
= ARRAY_SIZE(bast_default_nand_part
),
299 .partitions
= bast_default_nand_part
,
303 static void bast_nand_select(struct s3c2410_nand_set
*set
, int slot
)
307 slot
= set
->nr_map
[slot
] & 3;
309 pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
310 slot
, set
, set
->nr_map
);
312 tmp
= __raw_readb(BAST_VA_CTRL2
);
313 tmp
&= BAST_CPLD_CTLR2_IDERST
;
315 tmp
|= BAST_CPLD_CTRL2_WNAND
;
317 pr_debug("bast_nand: ctrl2 now %02x\n", tmp
);
319 __raw_writeb(tmp
, BAST_VA_CTRL2
);
322 static struct s3c2410_platform_nand bast_nand_info
= {
326 .nr_sets
= ARRAY_SIZE(bast_nand_sets
),
327 .sets
= bast_nand_sets
,
328 .select_chip
= bast_nand_select
,
333 static struct resource bast_dm9k_resource
[] = {
335 .start
= S3C2410_CS5
+ BAST_PA_DM9000
,
336 .end
= S3C2410_CS5
+ BAST_PA_DM9000
+ 3,
337 .flags
= IORESOURCE_MEM
,
340 .start
= S3C2410_CS5
+ BAST_PA_DM9000
+ 0x40,
341 .end
= S3C2410_CS5
+ BAST_PA_DM9000
+ 0x40 + 0x3f,
342 .flags
= IORESOURCE_MEM
,
347 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHLEVEL
,
352 /* for the moment we limit ourselves to 16bit IO until some
353 * better IO routines can be written and tested
356 static struct dm9000_plat_data bast_dm9k_platdata
= {
357 .flags
= DM9000_PLATF_16BITONLY
,
360 static struct platform_device bast_device_dm9k
= {
363 .num_resources
= ARRAY_SIZE(bast_dm9k_resource
),
364 .resource
= bast_dm9k_resource
,
366 .platform_data
= &bast_dm9k_platdata
,
372 #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
373 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
374 #define SERIAL_CLK (1843200)
376 static struct plat_serial8250_port bast_sio_data
[] = {
378 .mapbase
= SERIAL_BASE
+ 0x2f8,
379 .irq
= IRQ_PCSERIAL1
,
380 .flags
= SERIAL_FLAGS
,
383 .uartclk
= SERIAL_CLK
,
386 .mapbase
= SERIAL_BASE
+ 0x3f8,
387 .irq
= IRQ_PCSERIAL2
,
388 .flags
= SERIAL_FLAGS
,
391 .uartclk
= SERIAL_CLK
,
396 static struct platform_device bast_sio
= {
397 .name
= "serial8250",
398 .id
= PLAT8250_DEV_PLATFORM
,
400 .platform_data
= &bast_sio_data
,
404 /* we have devices on the bus which cannot work much over the
405 * standard 100KHz i2c bus frequency
408 static struct s3c2410_platform_i2c bast_i2c_info
= {
411 .bus_freq
= 100*1000,
412 .max_freq
= 130*1000,
415 /* Asix AX88796 10/100 ethernet controller */
417 static struct ax_plat_data bast_asix_platdata
= {
418 .flags
= AXFLG_MAC_FROMDEV
,
424 static struct resource bast_asix_resource
[] = {
426 .start
= S3C2410_CS5
+ BAST_PA_ASIXNET
,
427 .end
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x18 * 0x20) - 1,
428 .flags
= IORESOURCE_MEM
,
431 .start
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1f * 0x20),
432 .end
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1f * 0x20),
433 .flags
= IORESOURCE_MEM
,
438 .flags
= IORESOURCE_IRQ
442 static struct platform_device bast_device_asix
= {
445 .num_resources
= ARRAY_SIZE(bast_asix_resource
),
446 .resource
= bast_asix_resource
,
448 .platform_data
= &bast_asix_platdata
452 /* Asix AX88796 10/100 ethernet controller parallel port */
454 static struct resource bast_asixpp_resource
[] = {
456 .start
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x18 * 0x20),
457 .end
= S3C2410_CS5
+ BAST_PA_ASIXNET
+ (0x1b * 0x20) - 1,
458 .flags
= IORESOURCE_MEM
,
462 static struct platform_device bast_device_axpp
= {
463 .name
= "ax88796-pp",
465 .num_resources
= ARRAY_SIZE(bast_asixpp_resource
),
466 .resource
= bast_asixpp_resource
,
469 /* LCD/VGA controller */
471 static struct s3c2410fb_display __initdata bast_lcd_info
[] = {
473 .type
= S3C2410_LCDCON1_TFT
,
488 .lcdcon5
= 0x00014b02,
491 .type
= S3C2410_LCDCON1_TFT
,
506 .lcdcon5
= 0x00014b02,
509 .type
= S3C2410_LCDCON1_TFT
,
524 .lcdcon5
= 0x00014b02,
528 /* LCD/VGA controller */
530 static struct s3c2410fb_mach_info __initdata bast_fb_info
= {
532 .displays
= bast_lcd_info
,
533 .num_displays
= ARRAY_SIZE(bast_lcd_info
),
534 .default_display
= 1,
538 /* Standard BAST devices */
540 static struct platform_device
*bast_devices
[] __initdata
= {
553 static struct clk
*bast_clocks
[] = {
561 static void __init
bast_map_io(void)
563 /* initialise the clocks */
565 s3c24xx_dclk0
.parent
= &clk_upll
;
566 s3c24xx_dclk0
.rate
= 12*1000*1000;
568 s3c24xx_dclk1
.parent
= &clk_upll
;
569 s3c24xx_dclk1
.rate
= 24*1000*1000;
571 s3c24xx_clkout0
.parent
= &s3c24xx_dclk0
;
572 s3c24xx_clkout1
.parent
= &s3c24xx_dclk1
;
574 s3c24xx_uclk
.parent
= &s3c24xx_clkout1
;
576 s3c24xx_register_clocks(bast_clocks
, ARRAY_SIZE(bast_clocks
));
578 s3c_device_nand
.dev
.platform_data
= &bast_nand_info
;
579 s3c_device_i2c
.dev
.platform_data
= &bast_i2c_info
;
581 s3c24xx_init_io(bast_iodesc
, ARRAY_SIZE(bast_iodesc
));
582 s3c24xx_init_clocks(0);
583 s3c24xx_init_uarts(bast_uartcfgs
, ARRAY_SIZE(bast_uartcfgs
));
588 static void __init
bast_init(void)
590 sysdev_class_register(&bast_pm_sysclass
);
591 sysdev_register(&bast_pm_sysdev
);
593 s3c24xx_fb_set_platdata(&bast_fb_info
);
594 platform_add_devices(bast_devices
, ARRAY_SIZE(bast_devices
));
599 MACHINE_START(BAST
, "Simtec-BAST")
600 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
601 .phys_io
= S3C2410_PA_UART
,
602 .io_pg_offst
= (((u32
)S3C24XX_VA_UART
) >> 18) & 0xfffc,
603 .boot_params
= S3C2410_SDRAM_PA
+ 0x100,
604 .map_io
= bast_map_io
,
605 .init_irq
= s3c24xx_init_irq
,
606 .init_machine
= bast_init
,
607 .timer
= &s3c24xx_timer
,