1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Copyright 2003-2009 Simtec Electronics
4 // http://armlinux.simtec.co.uk/
5 // Ben Dooks <ben@simtec.co.uk>
6
7 #include <linux/kernel.h>
8 #include <linux/types.h>
9 #include <linux/interrupt.h>
10 #include <linux/list.h>
11 #include <linux/timer.h>
12 #include <linux/init.h>
13 #include <linux/gpio.h>
14 #include <linux/serial_core.h>
15 #include <linux/serial_s3c.h>
16 #include <linux/platform_device.h>
17 #include <linux/ata_platform.h>
18 #include <linux/i2c.h>
19 #include <linux/io.h>
20 #include <linux/sm501.h>
21 #include <linux/sm501-regs.h>
22
23 #include <asm/mach/arch.h>
24 #include <asm/mach/map.h>
25 #include <asm/mach/irq.h>
26
27 #include <mach/hardware.h>
28 #include <asm/irq.h>
29 #include <asm/mach-types.h>
30
31 #include <mach/regs-gpio.h>
32 #include <mach/regs-lcd.h>
33 #include <mach/gpio-samsung.h>
34 #include <linux/platform_data/mtd-nand-s3c2410.h>
35 #include <linux/platform_data/i2c-s3c2410.h>
36
37 #include <linux/mtd/mtd.h>
38 #include <linux/mtd/rawnand.h>
39 #include <linux/mtd/nand_ecc.h>
40 #include <linux/mtd/partitions.h>
41
42 #include <net/ax88796.h>
43
44 #include <plat/devs.h>
45 #include <plat/cpu.h>
46 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
47 #include <plat/samsung-time.h>
48
49 #include "anubis.h"
50 #include "common.h"
51 #include "simtec.h"
52
53 #define COPYRIGHT ", Copyright 2005-2009 Simtec Electronics"
54
55 static struct map_desc anubis_iodesc[] __initdata = {
56 /* ISA IO areas */
57
58 {
59 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
60 .pfn = __phys_to_pfn(0x0),
61 .length = SZ_4M,
62 .type = MT_DEVICE,
63 }, {
64 .virtual = (u32)S3C24XX_VA_ISA_WORD,
65 .pfn = __phys_to_pfn(0x0),
66 .length = SZ_4M,
67 .type = MT_DEVICE,
68 },
69
70 /* we could possibly compress the next set down into a set of smaller tables
71 * pagetables, but that would mean using an L2 section, and it still means
72 * we cannot actually feed the same register to an LDR due to 16K spacing
73 */
74
75 /* CPLD control registers */
76
77 {
78 .virtual = (u32)ANUBIS_VA_CTRL1,
79 .pfn = __phys_to_pfn(ANUBIS_PA_CTRL1),
80 .length = SZ_4K,
81 .type = MT_DEVICE,
82 }, {
83 .virtual = (u32)ANUBIS_VA_IDREG,
84 .pfn = __phys_to_pfn(ANUBIS_PA_IDREG),
85 .length = SZ_4K,
86 .type = MT_DEVICE,
87 },
88 };
89
90 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
91 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
92 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
93
94 static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
95 [0] = {
96 .hwport = 0,
97 .flags = 0,
98 .ucon = UCON,
99 .ulcon = ULCON,
100 .ufcon = UFCON,
101 .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
102 },
103 [1] = {
104 .hwport = 2,
105 .flags = 0,
106 .ucon = UCON,
107 .ulcon = ULCON,
108 .ufcon = UFCON,
109 .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
110 },
111 };
112
113 /* NAND Flash on Anubis board */
114
115 static int external_map[] = { 2 };
116 static int chip0_map[] = { 0 };
117 static int chip1_map[] = { 1 };
118
119 static struct mtd_partition __initdata anubis_default_nand_part[] = {
120 [0] = {
121 .name = "Boot Agent",
122 .size = SZ_16K,
123 .offset = 0,
124 },
125 [1] = {
126 .name = "/boot",
127 .size = SZ_4M - SZ_16K,
128 .offset = SZ_16K,
129 },
130 [2] = {
131 .name = "user1",
132 .offset = SZ_4M,
133 .size = SZ_32M - SZ_4M,
134 },
135 [3] = {
136 .name = "user2",
137 .offset = SZ_32M,
138 .size = MTDPART_SIZ_FULL,
139 }
140 };
141
142 static struct mtd_partition __initdata anubis_default_nand_part_large[] = {
143 [0] = {
144 .name = "Boot Agent",
145 .size = SZ_128K,
146 .offset = 0,
147 },
148 [1] = {
149 .name = "/boot",
150 .size = SZ_4M - SZ_128K,
151 .offset = SZ_128K,
152 },
153 [2] = {
154 .name = "user1",
155 .offset = SZ_4M,
156 .size = SZ_32M - SZ_4M,
157 },
158 [3] = {
159 .name = "user2",
160 .offset = SZ_32M,
161 .size = MTDPART_SIZ_FULL,
162 }
163 };
164
165 /* the Anubis has 3 selectable slots for nand-flash, the two
166 * on-board chip areas, as well as the external slot.
167 *
168 * Note, there is no current hot-plug support for the External
169 * socket.
170 */
171
172 static struct s3c2410_nand_set __initdata anubis_nand_sets[] = {
173 [1] = {
174 .name = "External",
175 .nr_chips = 1,
176 .nr_map = external_map,
177 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
178 .partitions = anubis_default_nand_part,
179 },
180 [0] = {
181 .name = "chip0",
182 .nr_chips = 1,
183 .nr_map = chip0_map,
184 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
185 .partitions = anubis_default_nand_part,
186 },
187 [2] = {
188 .name = "chip1",
189 .nr_chips = 1,
190 .nr_map = chip1_map,
191 .nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
192 .partitions = anubis_default_nand_part,
193 },
194 };
195
anubis_nand_select(struct s3c2410_nand_set * set,int slot)196 static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
197 {
198 unsigned int tmp;
199
200 slot = set->nr_map[slot] & 3;
201
202 pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
203 slot, set, set->nr_map);
204
205 tmp = __raw_readb(ANUBIS_VA_CTRL1);
206 tmp &= ~ANUBIS_CTRL1_NANDSEL;
207 tmp |= slot;
208
209 pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
210
211 __raw_writeb(tmp, ANUBIS_VA_CTRL1);
212 }
213
214 static struct s3c2410_platform_nand __initdata anubis_nand_info = {
215 .tacls = 25,
216 .twrph0 = 55,
217 .twrph1 = 40,
218 .nr_sets = ARRAY_SIZE(anubis_nand_sets),
219 .sets = anubis_nand_sets,
220 .select_chip = anubis_nand_select,
221 .ecc_mode = NAND_ECC_SOFT,
222 };
223
224 /* IDE channels */
225
226 static struct pata_platform_info anubis_ide_platdata = {
227 .ioport_shift = 5,
228 };
229
230 static struct resource anubis_ide0_resource[] = {
231 [0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32),
232 [2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32),
233 [3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
234 };
235
236 static struct platform_device anubis_device_ide0 = {
237 .name = "pata_platform",
238 .id = 0,
239 .num_resources = ARRAY_SIZE(anubis_ide0_resource),
240 .resource = anubis_ide0_resource,
241 .dev = {
242 .platform_data = &anubis_ide_platdata,
243 .coherent_dma_mask = ~0,
244 },
245 };
246
247 static struct resource anubis_ide1_resource[] = {
248 [0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32),
249 [1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32),
250 [2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
251 };
252
253 static struct platform_device anubis_device_ide1 = {
254 .name = "pata_platform",
255 .id = 1,
256 .num_resources = ARRAY_SIZE(anubis_ide1_resource),
257 .resource = anubis_ide1_resource,
258 .dev = {
259 .platform_data = &anubis_ide_platdata,
260 .coherent_dma_mask = ~0,
261 },
262 };
263
264 /* Asix AX88796 10/100 ethernet controller */
265
266 static struct ax_plat_data anubis_asix_platdata = {
267 .flags = AXFLG_MAC_FROMDEV,
268 .wordlength = 2,
269 .dcr_val = 0x48,
270 .rcr_val = 0x40,
271 };
272
273 static struct resource anubis_asix_resource[] = {
274 [0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20),
275 [1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX),
276 };
277
278 static struct platform_device anubis_device_asix = {
279 .name = "ax88796",
280 .id = 0,
281 .num_resources = ARRAY_SIZE(anubis_asix_resource),
282 .resource = anubis_asix_resource,
283 .dev = {
284 .platform_data = &anubis_asix_platdata,
285 }
286 };
287
288 /* SM501 */
289
290 static struct resource anubis_sm501_resource[] = {
291 [0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M),
292 [1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M),
293 [2] = DEFINE_RES_IRQ(IRQ_EINT0),
294 };
295
296 static struct sm501_initdata anubis_sm501_initdata = {
297 .gpio_high = {
298 .set = 0x3F000000, /* 24bit panel */
299 .mask = 0x0,
300 },
301 .misc_timing = {
302 .set = 0x010100, /* SDRAM timing */
303 .mask = 0x1F1F00,
304 },
305 .misc_control = {
306 .set = SM501_MISC_PNL_24BIT,
307 .mask = 0,
308 },
309
310 .devices = SM501_USE_GPIO,
311
312 /* set the SDRAM and bus clocks */
313 .mclk = 72 * MHZ,
314 .m1xclk = 144 * MHZ,
315 };
316
317 static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
318 [0] = {
319 .bus_num = 1,
320 .pin_scl = 44,
321 .pin_sda = 45,
322 },
323 [1] = {
324 .bus_num = 2,
325 .pin_scl = 40,
326 .pin_sda = 41,
327 },
328 };
329
330 static struct sm501_platdata anubis_sm501_platdata = {
331 .init = &anubis_sm501_initdata,
332 .gpio_base = -1,
333 .gpio_i2c = anubis_sm501_gpio_i2c,
334 .gpio_i2c_nr = ARRAY_SIZE(anubis_sm501_gpio_i2c),
335 };
336
337 static struct platform_device anubis_device_sm501 = {
338 .name = "sm501",
339 .id = 0,
340 .num_resources = ARRAY_SIZE(anubis_sm501_resource),
341 .resource = anubis_sm501_resource,
342 .dev = {
343 .platform_data = &anubis_sm501_platdata,
344 },
345 };
346
347 /* Standard Anubis devices */
348
349 static struct platform_device *anubis_devices[] __initdata = {
350 &s3c2410_device_dclk,
351 &s3c_device_ohci,
352 &s3c_device_wdt,
353 &s3c_device_adc,
354 &s3c_device_i2c0,
355 &s3c_device_rtc,
356 &s3c_device_nand,
357 &anubis_device_ide0,
358 &anubis_device_ide1,
359 &anubis_device_asix,
360 &anubis_device_sm501,
361 };
362
363 /* I2C devices. */
364
365 static struct i2c_board_info anubis_i2c_devs[] __initdata = {
366 {
367 I2C_BOARD_INFO("tps65011", 0x48),
368 .irq = IRQ_EINT20,
369 }
370 };
371
372 /* Audio setup */
373 static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = {
374 .have_mic = 1,
375 .have_lout = 1,
376 .output_cdclk = 1,
377 .use_mpllin = 1,
378 .amp_gpio = S3C2410_GPB(2),
379 .amp_gain[0] = S3C2410_GPD(10),
380 .amp_gain[1] = S3C2410_GPD(11),
381 };
382
anubis_map_io(void)383 static void __init anubis_map_io(void)
384 {
385 s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
386 s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
387 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
388
389 /* check for the newer revision boards with large page nand */
390
391 if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
392 printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
393 __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
394 anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
395 anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
396 } else {
397 /* ensure that the GPIO is setup */
398 gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
399 gpio_free(S3C2410_GPA(0));
400 }
401 }
402
anubis_init_time(void)403 static void __init anubis_init_time(void)
404 {
405 s3c2440_init_clocks(12000000);
406 samsung_timer_init();
407 }
408
anubis_init(void)409 static void __init anubis_init(void)
410 {
411 s3c_i2c0_set_platdata(NULL);
412 s3c_nand_set_platdata(&anubis_nand_info);
413 simtec_audio_add(NULL, false, &anubis_audio);
414
415 platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
416
417 i2c_register_board_info(0, anubis_i2c_devs,
418 ARRAY_SIZE(anubis_i2c_devs));
419 }
420
421
422 MACHINE_START(ANUBIS, "Simtec-Anubis")
423 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
424 .atag_offset = 0x100,
425 .map_io = anubis_map_io,
426 .init_machine = anubis_init,
427 .init_irq = s3c2440_init_irq,
428 .init_time = anubis_init_time,
429 MACHINE_END
430