1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // Copyright (c) 2004-2005 Simtec Electronics
4 // http://www.simtec.co.uk/products/SWLINUX/
5 // Ben Dooks <ben@simtec.co.uk>
6 //
7 // Common code for S3C24XX machines
8
9 #include <linux/dma-mapping.h>
10 #include <linux/init.h>
11 #include <linux/module.h>
12 #include <linux/interrupt.h>
13 #include <linux/ioport.h>
14 #include <linux/serial_core.h>
15 #include <linux/serial_s3c.h>
16 #include <clocksource/samsung_pwm.h>
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/io.h>
20 #include <linux/platform_data/clk-s3c2410.h>
21 #include <linux/platform_data/dma-s3c24xx.h>
22 #include <linux/dmaengine.h>
23 #include <linux/clk/samsung.h>
24
25 #include "hardware-s3c24xx.h"
26 #include "map.h"
27 #include "regs-clock.h"
28 #include <asm/irq.h>
29 #include <asm/cacheflush.h>
30 #include <asm/system_info.h>
31 #include <asm/system_misc.h>
32
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35
36 #include "regs-gpio.h"
37 #include "dma-s3c24xx.h"
38
39 #include "cpu.h"
40 #include "devs.h"
41 #include "pwm-core.h"
42
43 #include "s3c24xx.h"
44
45 /* table of supported CPUs */
46
47 static const char name_s3c2410[] = "S3C2410";
48 static const char name_s3c2412[] = "S3C2412";
49 static const char name_s3c2416[] = "S3C2416/S3C2450";
50 static const char name_s3c2440[] = "S3C2440";
51 static const char name_s3c2442[] = "S3C2442";
52 static const char name_s3c2442b[] = "S3C2442B";
53 static const char name_s3c2443[] = "S3C2443";
54 static const char name_s3c2410a[] = "S3C2410A";
55 static const char name_s3c2440a[] = "S3C2440A";
56
57 static struct cpu_table cpu_ids[] __initdata = {
58 {
59 .idcode = 0x32410000,
60 .idmask = 0xffffffff,
61 .map_io = s3c2410_map_io,
62 .init_uarts = s3c2410_init_uarts,
63 .init = s3c2410_init,
64 .name = name_s3c2410
65 },
66 {
67 .idcode = 0x32410002,
68 .idmask = 0xffffffff,
69 .map_io = s3c2410_map_io,
70 .init_uarts = s3c2410_init_uarts,
71 .init = s3c2410a_init,
72 .name = name_s3c2410a
73 },
74 {
75 .idcode = 0x32440000,
76 .idmask = 0xffffffff,
77 .map_io = s3c2440_map_io,
78 .init_uarts = s3c244x_init_uarts,
79 .init = s3c2440_init,
80 .name = name_s3c2440
81 },
82 {
83 .idcode = 0x32440001,
84 .idmask = 0xffffffff,
85 .map_io = s3c2440_map_io,
86 .init_uarts = s3c244x_init_uarts,
87 .init = s3c2440_init,
88 .name = name_s3c2440a
89 },
90 {
91 .idcode = 0x32440aaa,
92 .idmask = 0xffffffff,
93 .map_io = s3c2442_map_io,
94 .init_uarts = s3c244x_init_uarts,
95 .init = s3c2442_init,
96 .name = name_s3c2442
97 },
98 {
99 .idcode = 0x32440aab,
100 .idmask = 0xffffffff,
101 .map_io = s3c2442_map_io,
102 .init_uarts = s3c244x_init_uarts,
103 .init = s3c2442_init,
104 .name = name_s3c2442b
105 },
106 {
107 .idcode = 0x32412001,
108 .idmask = 0xffffffff,
109 .map_io = s3c2412_map_io,
110 .init_uarts = s3c2412_init_uarts,
111 .init = s3c2412_init,
112 .name = name_s3c2412,
113 },
114 { /* a newer version of the s3c2412 */
115 .idcode = 0x32412003,
116 .idmask = 0xffffffff,
117 .map_io = s3c2412_map_io,
118 .init_uarts = s3c2412_init_uarts,
119 .init = s3c2412_init,
120 .name = name_s3c2412,
121 },
122 { /* a strange version of the s3c2416 */
123 .idcode = 0x32450003,
124 .idmask = 0xffffffff,
125 .map_io = s3c2416_map_io,
126 .init_uarts = s3c2416_init_uarts,
127 .init = s3c2416_init,
128 .name = name_s3c2416,
129 },
130 {
131 .idcode = 0x32443001,
132 .idmask = 0xffffffff,
133 .map_io = s3c2443_map_io,
134 .init_uarts = s3c2443_init_uarts,
135 .init = s3c2443_init,
136 .name = name_s3c2443,
137 },
138 };
139
140 /* minimal IO mapping */
141
142 static struct map_desc s3c_iodesc[] __initdata __maybe_unused = {
143 IODESC_ENT(GPIO),
144 IODESC_ENT(IRQ),
145 IODESC_ENT(MEMCTRL),
146 IODESC_ENT(UART)
147 };
148
149 /* read cpu identificaiton code */
150
s3c24xx_read_idcode_v5(void)151 static unsigned long s3c24xx_read_idcode_v5(void)
152 {
153 #if defined(CONFIG_CPU_S3C2416)
154 /* s3c2416 is v5, with S3C24XX_GSTATUS1 instead of S3C2412_GSTATUS1 */
155
156 u32 gs = __raw_readl(S3C24XX_GSTATUS1);
157
158 /* test for s3c2416 or similar device */
159 if ((gs >> 16) == 0x3245)
160 return gs;
161 #endif
162
163 #if defined(CONFIG_CPU_S3C2412)
164 return __raw_readl(S3C2412_GSTATUS1);
165 #else
166 return 1UL; /* don't look like an 2400 */
167 #endif
168 }
169
s3c24xx_read_idcode_v4(void)170 static unsigned long s3c24xx_read_idcode_v4(void)
171 {
172 return __raw_readl(S3C2410_GSTATUS1);
173 }
174
s3c24xx_default_idle(void)175 static void s3c24xx_default_idle(void)
176 {
177 unsigned long tmp = 0;
178 int i;
179
180 /* idle the system by using the idle mode which will wait for an
181 * interrupt to happen before restarting the system.
182 */
183
184 /* Warning: going into idle state upsets jtag scanning */
185
186 __raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE,
187 S3C2410_CLKCON);
188
189 /* the samsung port seems to do a loop and then unset idle.. */
190 for (i = 0; i < 50; i++)
191 tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */
192
193 /* this bit is not cleared on re-start... */
194
195 __raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE,
196 S3C2410_CLKCON);
197 }
198
199 static struct samsung_pwm_variant s3c24xx_pwm_variant = {
200 .bits = 16,
201 .div_base = 1,
202 .has_tint_cstat = false,
203 .tclk_mask = (1 << 4),
204 };
205
s3c24xx_init_io(struct map_desc * mach_desc,int size)206 void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
207 {
208 arm_pm_idle = s3c24xx_default_idle;
209
210 /* initialise the io descriptors we need for initialisation */
211 iotable_init(mach_desc, size);
212 iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
213
214 if (cpu_architecture() >= CPU_ARCH_ARMv5) {
215 samsung_cpu_id = s3c24xx_read_idcode_v5();
216 } else {
217 samsung_cpu_id = s3c24xx_read_idcode_v4();
218 }
219
220 s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
221
222 samsung_pwm_set_platdata(&s3c24xx_pwm_variant);
223 }
224
s3c24xx_set_timer_source(unsigned int event,unsigned int source)225 void __init s3c24xx_set_timer_source(unsigned int event, unsigned int source)
226 {
227 s3c24xx_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
228 s3c24xx_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
229 }
230
s3c24xx_timer_init(void)231 void __init s3c24xx_timer_init(void)
232 {
233 unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
234 IRQ_TIMER0, IRQ_TIMER1, IRQ_TIMER2, IRQ_TIMER3, IRQ_TIMER4,
235 };
236
237 samsung_pwm_clocksource_init(S3C_VA_TIMER,
238 timer_irqs, &s3c24xx_pwm_variant);
239 }
240
241 /* Serial port registrations */
242
243 #define S3C2410_PA_UART0 (S3C24XX_PA_UART)
244 #define S3C2410_PA_UART1 (S3C24XX_PA_UART + 0x4000 )
245 #define S3C2410_PA_UART2 (S3C24XX_PA_UART + 0x8000 )
246 #define S3C2443_PA_UART3 (S3C24XX_PA_UART + 0xC000 )
247
248 static struct resource s3c2410_uart0_resource[] = {
249 [0] = DEFINE_RES_MEM(S3C2410_PA_UART0, SZ_16K),
250 [1] = DEFINE_RES_NAMED(IRQ_S3CUART_RX0, \
251 IRQ_S3CUART_ERR0 - IRQ_S3CUART_RX0 + 1, \
252 NULL, IORESOURCE_IRQ)
253 };
254
255 static struct resource s3c2410_uart1_resource[] = {
256 [0] = DEFINE_RES_MEM(S3C2410_PA_UART1, SZ_16K),
257 [1] = DEFINE_RES_NAMED(IRQ_S3CUART_RX1, \
258 IRQ_S3CUART_ERR1 - IRQ_S3CUART_RX1 + 1, \
259 NULL, IORESOURCE_IRQ)
260 };
261
262 static struct resource s3c2410_uart2_resource[] = {
263 [0] = DEFINE_RES_MEM(S3C2410_PA_UART2, SZ_16K),
264 [1] = DEFINE_RES_NAMED(IRQ_S3CUART_RX2, \
265 IRQ_S3CUART_ERR2 - IRQ_S3CUART_RX2 + 1, \
266 NULL, IORESOURCE_IRQ)
267 };
268
269 static struct resource s3c2410_uart3_resource[] = {
270 [0] = DEFINE_RES_MEM(S3C2443_PA_UART3, SZ_16K),
271 [1] = DEFINE_RES_NAMED(IRQ_S3CUART_RX3, \
272 IRQ_S3CUART_ERR3 - IRQ_S3CUART_RX3 + 1, \
273 NULL, IORESOURCE_IRQ)
274 };
275
276 struct s3c24xx_uart_resources s3c2410_uart_resources[] __initdata = {
277 [0] = {
278 .resources = s3c2410_uart0_resource,
279 .nr_resources = ARRAY_SIZE(s3c2410_uart0_resource),
280 },
281 [1] = {
282 .resources = s3c2410_uart1_resource,
283 .nr_resources = ARRAY_SIZE(s3c2410_uart1_resource),
284 },
285 [2] = {
286 .resources = s3c2410_uart2_resource,
287 .nr_resources = ARRAY_SIZE(s3c2410_uart2_resource),
288 },
289 [3] = {
290 .resources = s3c2410_uart3_resource,
291 .nr_resources = ARRAY_SIZE(s3c2410_uart3_resource),
292 },
293 };
294
295 #define s3c24xx_device_dma_mask (*((u64[]) { DMA_BIT_MASK(32) }))
296
297 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
298 defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442)
299 static struct resource s3c2410_dma_resource[] = {
300 [0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
301 [1] = DEFINE_RES_IRQ(IRQ_DMA0),
302 [2] = DEFINE_RES_IRQ(IRQ_DMA1),
303 [3] = DEFINE_RES_IRQ(IRQ_DMA2),
304 [4] = DEFINE_RES_IRQ(IRQ_DMA3),
305 };
306 #endif
307
308 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2442)
309 static struct s3c24xx_dma_channel s3c2410_dma_channels[DMACH_MAX] = {
310 [DMACH_XD0] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 0), },
311 [DMACH_XD1] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 1), },
312 [DMACH_SDI] = { S3C24XX_DMA_APB, false, S3C24XX_DMA_CHANREQ(2, 0) |
313 S3C24XX_DMA_CHANREQ(2, 2) |
314 S3C24XX_DMA_CHANREQ(1, 3),
315 },
316 [DMACH_SPI0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 1), },
317 [DMACH_SPI1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 3), },
318 [DMACH_UART0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 0), },
319 [DMACH_UART1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 1), },
320 [DMACH_UART2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(0, 3), },
321 [DMACH_TIMER] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 0) |
322 S3C24XX_DMA_CHANREQ(3, 2) |
323 S3C24XX_DMA_CHANREQ(3, 3),
324 },
325 [DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 1) |
326 S3C24XX_DMA_CHANREQ(1, 2),
327 },
328 [DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(0, 2), },
329 [DMACH_USB_EP1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 0), },
330 [DMACH_USB_EP2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 1), },
331 [DMACH_USB_EP3] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 2), },
332 [DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 3), },
333 };
334
335 static const struct dma_slave_map s3c2410_dma_slave_map[] = {
336 { "s3c2410-sdi", "rx-tx", (void *)DMACH_SDI },
337 { "s3c2410-spi.0", "rx", (void *)DMACH_SPI0_RX },
338 { "s3c2410-spi.0", "tx", (void *)DMACH_SPI0_TX },
339 { "s3c2410-spi.1", "rx", (void *)DMACH_SPI1_RX },
340 { "s3c2410-spi.1", "tx", (void *)DMACH_SPI1_TX },
341 /*
342 * The DMA request source[1] (DMACH_UARTx_SRC2) are
343 * not used in the UART driver.
344 */
345 { "s3c2410-uart.0", "rx", (void *)DMACH_UART0 },
346 { "s3c2410-uart.0", "tx", (void *)DMACH_UART0 },
347 { "s3c2410-uart.1", "rx", (void *)DMACH_UART1 },
348 { "s3c2410-uart.1", "tx", (void *)DMACH_UART1 },
349 { "s3c2410-uart.2", "rx", (void *)DMACH_UART2 },
350 { "s3c2410-uart.2", "tx", (void *)DMACH_UART2 },
351 { "s3c24xx-iis", "rx", (void *)DMACH_I2S_IN },
352 { "s3c24xx-iis", "tx", (void *)DMACH_I2S_OUT },
353 { "s3c-hsudc", "rx0", (void *)DMACH_USB_EP1 },
354 { "s3c-hsudc", "tx0", (void *)DMACH_USB_EP1 },
355 { "s3c-hsudc", "rx1", (void *)DMACH_USB_EP2 },
356 { "s3c-hsudc", "tx1", (void *)DMACH_USB_EP2 },
357 { "s3c-hsudc", "rx2", (void *)DMACH_USB_EP3 },
358 { "s3c-hsudc", "tx2", (void *)DMACH_USB_EP3 },
359 { "s3c-hsudc", "rx3", (void *)DMACH_USB_EP4 },
360 { "s3c-hsudc", "tx3", (void *)DMACH_USB_EP4 }
361 };
362
363 static struct s3c24xx_dma_platdata s3c2410_dma_platdata = {
364 .num_phy_channels = 4,
365 .channels = s3c2410_dma_channels,
366 .num_channels = DMACH_MAX,
367 .slave_map = s3c2410_dma_slave_map,
368 .slavecnt = ARRAY_SIZE(s3c2410_dma_slave_map),
369 };
370
371 struct platform_device s3c2410_device_dma = {
372 .name = "s3c2410-dma",
373 .id = 0,
374 .num_resources = ARRAY_SIZE(s3c2410_dma_resource),
375 .resource = s3c2410_dma_resource,
376 .dev = {
377 .dma_mask = &s3c24xx_device_dma_mask,
378 .coherent_dma_mask = DMA_BIT_MASK(32),
379 .platform_data = &s3c2410_dma_platdata,
380 },
381 };
382 #endif
383
384 #ifdef CONFIG_CPU_S3C2412
385 static struct s3c24xx_dma_channel s3c2412_dma_channels[DMACH_MAX] = {
386 [DMACH_XD0] = { S3C24XX_DMA_AHB, true, 17 },
387 [DMACH_XD1] = { S3C24XX_DMA_AHB, true, 18 },
388 [DMACH_SDI] = { S3C24XX_DMA_APB, false, 10 },
389 [DMACH_SPI0_RX] = { S3C24XX_DMA_APB, true, 1 },
390 [DMACH_SPI0_TX] = { S3C24XX_DMA_APB, true, 0 },
391 [DMACH_SPI1_RX] = { S3C24XX_DMA_APB, true, 3 },
392 [DMACH_SPI1_TX] = { S3C24XX_DMA_APB, true, 2 },
393 [DMACH_UART0] = { S3C24XX_DMA_APB, true, 19 },
394 [DMACH_UART1] = { S3C24XX_DMA_APB, true, 21 },
395 [DMACH_UART2] = { S3C24XX_DMA_APB, true, 23 },
396 [DMACH_UART0_SRC2] = { S3C24XX_DMA_APB, true, 20 },
397 [DMACH_UART1_SRC2] = { S3C24XX_DMA_APB, true, 22 },
398 [DMACH_UART2_SRC2] = { S3C24XX_DMA_APB, true, 24 },
399 [DMACH_TIMER] = { S3C24XX_DMA_APB, true, 9 },
400 [DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, 5 },
401 [DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, 4 },
402 [DMACH_USB_EP1] = { S3C24XX_DMA_APB, true, 13 },
403 [DMACH_USB_EP2] = { S3C24XX_DMA_APB, true, 14 },
404 [DMACH_USB_EP3] = { S3C24XX_DMA_APB, true, 15 },
405 [DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, 16 },
406 };
407
408 static const struct dma_slave_map s3c2412_dma_slave_map[] = {
409 { "s3c2412-sdi", "rx-tx", (void *)DMACH_SDI },
410 { "s3c2412-spi.0", "rx", (void *)DMACH_SPI0_RX },
411 { "s3c2412-spi.0", "tx", (void *)DMACH_SPI0_TX },
412 { "s3c2412-spi.1", "rx", (void *)DMACH_SPI1_RX },
413 { "s3c2412-spi.1", "tx", (void *)DMACH_SPI1_TX },
414 { "s3c2440-uart.0", "rx", (void *)DMACH_UART0 },
415 { "s3c2440-uart.0", "tx", (void *)DMACH_UART0 },
416 { "s3c2440-uart.1", "rx", (void *)DMACH_UART1 },
417 { "s3c2440-uart.1", "tx", (void *)DMACH_UART1 },
418 { "s3c2440-uart.2", "rx", (void *)DMACH_UART2 },
419 { "s3c2440-uart.2", "tx", (void *)DMACH_UART2 },
420 { "s3c2412-iis", "rx", (void *)DMACH_I2S_IN },
421 { "s3c2412-iis", "tx", (void *)DMACH_I2S_OUT },
422 { "s3c-hsudc", "rx0", (void *)DMACH_USB_EP1 },
423 { "s3c-hsudc", "tx0", (void *)DMACH_USB_EP1 },
424 { "s3c-hsudc", "rx1", (void *)DMACH_USB_EP2 },
425 { "s3c-hsudc", "tx1", (void *)DMACH_USB_EP2 },
426 { "s3c-hsudc", "rx2", (void *)DMACH_USB_EP3 },
427 { "s3c-hsudc", "tx2", (void *)DMACH_USB_EP3 },
428 { "s3c-hsudc", "rx3", (void *)DMACH_USB_EP4 },
429 { "s3c-hsudc", "tx3", (void *)DMACH_USB_EP4 }
430 };
431
432 static struct s3c24xx_dma_platdata s3c2412_dma_platdata = {
433 .num_phy_channels = 4,
434 .channels = s3c2412_dma_channels,
435 .num_channels = DMACH_MAX,
436 .slave_map = s3c2412_dma_slave_map,
437 .slavecnt = ARRAY_SIZE(s3c2412_dma_slave_map),
438 };
439
440 struct platform_device s3c2412_device_dma = {
441 .name = "s3c2412-dma",
442 .id = 0,
443 .num_resources = ARRAY_SIZE(s3c2410_dma_resource),
444 .resource = s3c2410_dma_resource,
445 .dev = {
446 .dma_mask = &s3c24xx_device_dma_mask,
447 .coherent_dma_mask = DMA_BIT_MASK(32),
448 .platform_data = &s3c2412_dma_platdata,
449 },
450 };
451 #endif
452
453 #if defined(CONFIG_CPU_S3C2440)
454 static struct s3c24xx_dma_channel s3c2440_dma_channels[DMACH_MAX] = {
455 [DMACH_XD0] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 0), },
456 [DMACH_XD1] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 1), },
457 [DMACH_SDI] = { S3C24XX_DMA_APB, false, S3C24XX_DMA_CHANREQ(2, 0) |
458 S3C24XX_DMA_CHANREQ(6, 1) |
459 S3C24XX_DMA_CHANREQ(2, 2) |
460 S3C24XX_DMA_CHANREQ(1, 3),
461 },
462 [DMACH_SPI0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 1), },
463 [DMACH_SPI1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 3), },
464 [DMACH_UART0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 0), },
465 [DMACH_UART1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 1), },
466 [DMACH_UART2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(0, 3), },
467 [DMACH_TIMER] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 0) |
468 S3C24XX_DMA_CHANREQ(3, 2) |
469 S3C24XX_DMA_CHANREQ(3, 3),
470 },
471 [DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 1) |
472 S3C24XX_DMA_CHANREQ(1, 2),
473 },
474 [DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(5, 0) |
475 S3C24XX_DMA_CHANREQ(0, 2),
476 },
477 [DMACH_PCM_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(6, 0) |
478 S3C24XX_DMA_CHANREQ(5, 2),
479 },
480 [DMACH_PCM_OUT] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(5, 1) |
481 S3C24XX_DMA_CHANREQ(6, 3),
482 },
483 [DMACH_MIC_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(6, 2) |
484 S3C24XX_DMA_CHANREQ(5, 3),
485 },
486 [DMACH_USB_EP1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 0), },
487 [DMACH_USB_EP2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 1), },
488 [DMACH_USB_EP3] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 2), },
489 [DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 3), },
490 };
491
492 static const struct dma_slave_map s3c2440_dma_slave_map[] = {
493 /* TODO: DMACH_XD0 */
494 /* TODO: DMACH_XD1 */
495 { "s3c2440-sdi", "rx-tx", (void *)DMACH_SDI },
496 { "s3c2410-spi.0", "rx", (void *)DMACH_SPI0 },
497 { "s3c2410-spi.0", "tx", (void *)DMACH_SPI0 },
498 { "s3c2410-spi.1", "rx", (void *)DMACH_SPI1 },
499 { "s3c2410-spi.1", "tx", (void *)DMACH_SPI1 },
500 { "s3c2440-uart.0", "rx", (void *)DMACH_UART0 },
501 { "s3c2440-uart.0", "tx", (void *)DMACH_UART0 },
502 { "s3c2440-uart.1", "rx", (void *)DMACH_UART1 },
503 { "s3c2440-uart.1", "tx", (void *)DMACH_UART1 },
504 { "s3c2440-uart.2", "rx", (void *)DMACH_UART2 },
505 { "s3c2440-uart.2", "tx", (void *)DMACH_UART2 },
506 { "s3c2440-uart.3", "rx", (void *)DMACH_UART3 },
507 { "s3c2440-uart.3", "tx", (void *)DMACH_UART3 },
508 /* TODO: DMACH_TIMER */
509 { "s3c24xx-iis", "rx", (void *)DMACH_I2S_IN },
510 { "s3c24xx-iis", "tx", (void *)DMACH_I2S_OUT },
511 { "samsung-ac97", "rx", (void *)DMACH_PCM_IN },
512 { "samsung-ac97", "tx", (void *)DMACH_PCM_OUT },
513 { "samsung-ac97", "rx", (void *)DMACH_MIC_IN },
514 { "s3c-hsudc", "rx0", (void *)DMACH_USB_EP1 },
515 { "s3c-hsudc", "rx1", (void *)DMACH_USB_EP2 },
516 { "s3c-hsudc", "rx2", (void *)DMACH_USB_EP3 },
517 { "s3c-hsudc", "rx3", (void *)DMACH_USB_EP4 },
518 { "s3c-hsudc", "tx0", (void *)DMACH_USB_EP1 },
519 { "s3c-hsudc", "tx1", (void *)DMACH_USB_EP2 },
520 { "s3c-hsudc", "tx2", (void *)DMACH_USB_EP3 },
521 { "s3c-hsudc", "tx3", (void *)DMACH_USB_EP4 }
522 };
523
524 static struct s3c24xx_dma_platdata s3c2440_dma_platdata = {
525 .num_phy_channels = 4,
526 .channels = s3c2440_dma_channels,
527 .num_channels = DMACH_MAX,
528 .slave_map = s3c2440_dma_slave_map,
529 .slavecnt = ARRAY_SIZE(s3c2440_dma_slave_map),
530 };
531
532 struct platform_device s3c2440_device_dma = {
533 .name = "s3c2410-dma",
534 .id = 0,
535 .num_resources = ARRAY_SIZE(s3c2410_dma_resource),
536 .resource = s3c2410_dma_resource,
537 .dev = {
538 .dma_mask = &s3c24xx_device_dma_mask,
539 .coherent_dma_mask = DMA_BIT_MASK(32),
540 .platform_data = &s3c2440_dma_platdata,
541 },
542 };
543 #endif
544
545 #if defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
546 static struct resource s3c2443_dma_resource[] = {
547 [0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
548 [1] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA0),
549 [2] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA1),
550 [3] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA2),
551 [4] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA3),
552 [5] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA4),
553 [6] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA5),
554 };
555
556 static struct s3c24xx_dma_channel s3c2443_dma_channels[DMACH_MAX] = {
557 [DMACH_XD0] = { S3C24XX_DMA_AHB, true, 17 },
558 [DMACH_XD1] = { S3C24XX_DMA_AHB, true, 18 },
559 [DMACH_SDI] = { S3C24XX_DMA_APB, false, 10 },
560 [DMACH_SPI0_RX] = { S3C24XX_DMA_APB, true, 1 },
561 [DMACH_SPI0_TX] = { S3C24XX_DMA_APB, true, 0 },
562 [DMACH_SPI1_RX] = { S3C24XX_DMA_APB, true, 3 },
563 [DMACH_SPI1_TX] = { S3C24XX_DMA_APB, true, 2 },
564 [DMACH_UART0] = { S3C24XX_DMA_APB, true, 19 },
565 [DMACH_UART1] = { S3C24XX_DMA_APB, true, 21 },
566 [DMACH_UART2] = { S3C24XX_DMA_APB, true, 23 },
567 [DMACH_UART3] = { S3C24XX_DMA_APB, true, 25 },
568 [DMACH_UART0_SRC2] = { S3C24XX_DMA_APB, true, 20 },
569 [DMACH_UART1_SRC2] = { S3C24XX_DMA_APB, true, 22 },
570 [DMACH_UART2_SRC2] = { S3C24XX_DMA_APB, true, 24 },
571 [DMACH_UART3_SRC2] = { S3C24XX_DMA_APB, true, 26 },
572 [DMACH_TIMER] = { S3C24XX_DMA_APB, true, 9 },
573 [DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, 5 },
574 [DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, 4 },
575 [DMACH_PCM_IN] = { S3C24XX_DMA_APB, true, 28 },
576 [DMACH_PCM_OUT] = { S3C24XX_DMA_APB, true, 27 },
577 [DMACH_MIC_IN] = { S3C24XX_DMA_APB, true, 29 },
578 };
579
580 static const struct dma_slave_map s3c2443_dma_slave_map[] = {
581 { "s3c2440-sdi", "rx-tx", (void *)DMACH_SDI },
582 { "s3c2443-spi.0", "rx", (void *)DMACH_SPI0_RX },
583 { "s3c2443-spi.0", "tx", (void *)DMACH_SPI0_TX },
584 { "s3c2443-spi.1", "rx", (void *)DMACH_SPI1_RX },
585 { "s3c2443-spi.1", "tx", (void *)DMACH_SPI1_TX },
586 { "s3c2440-uart.0", "rx", (void *)DMACH_UART0 },
587 { "s3c2440-uart.0", "tx", (void *)DMACH_UART0 },
588 { "s3c2440-uart.1", "rx", (void *)DMACH_UART1 },
589 { "s3c2440-uart.1", "tx", (void *)DMACH_UART1 },
590 { "s3c2440-uart.2", "rx", (void *)DMACH_UART2 },
591 { "s3c2440-uart.2", "tx", (void *)DMACH_UART2 },
592 { "s3c2440-uart.3", "rx", (void *)DMACH_UART3 },
593 { "s3c2440-uart.3", "tx", (void *)DMACH_UART3 },
594 { "s3c24xx-iis", "rx", (void *)DMACH_I2S_IN },
595 { "s3c24xx-iis", "tx", (void *)DMACH_I2S_OUT },
596 };
597
598 static struct s3c24xx_dma_platdata s3c2443_dma_platdata = {
599 .num_phy_channels = 6,
600 .channels = s3c2443_dma_channels,
601 .num_channels = DMACH_MAX,
602 .slave_map = s3c2443_dma_slave_map,
603 .slavecnt = ARRAY_SIZE(s3c2443_dma_slave_map),
604 };
605
606 struct platform_device s3c2443_device_dma = {
607 .name = "s3c2443-dma",
608 .id = 0,
609 .num_resources = ARRAY_SIZE(s3c2443_dma_resource),
610 .resource = s3c2443_dma_resource,
611 .dev = {
612 .dma_mask = &s3c24xx_device_dma_mask,
613 .coherent_dma_mask = DMA_BIT_MASK(32),
614 .platform_data = &s3c2443_dma_platdata,
615 },
616 };
617 #endif
618
619 #if defined(CONFIG_COMMON_CLK) && defined(CONFIG_CPU_S3C2410)
s3c2410_init_clocks(int xtal)620 void __init s3c2410_init_clocks(int xtal)
621 {
622 s3c2410_common_clk_init(NULL, xtal, 0, S3C24XX_VA_CLKPWR);
623 }
624 #endif
625
626 #ifdef CONFIG_CPU_S3C2412
s3c2412_init_clocks(int xtal)627 void __init s3c2412_init_clocks(int xtal)
628 {
629 s3c2412_common_clk_init(NULL, xtal, 0, S3C24XX_VA_CLKPWR);
630 }
631 #endif
632
633 #ifdef CONFIG_CPU_S3C2416
s3c2416_init_clocks(int xtal)634 void __init s3c2416_init_clocks(int xtal)
635 {
636 s3c2443_common_clk_init(NULL, xtal, 0, S3C24XX_VA_CLKPWR);
637 }
638 #endif
639
640 #if defined(CONFIG_COMMON_CLK) && defined(CONFIG_CPU_S3C2440)
s3c2440_init_clocks(int xtal)641 void __init s3c2440_init_clocks(int xtal)
642 {
643 s3c2410_common_clk_init(NULL, xtal, 1, S3C24XX_VA_CLKPWR);
644 }
645 #endif
646
647 #if defined(CONFIG_COMMON_CLK) && defined(CONFIG_CPU_S3C2442)
s3c2442_init_clocks(int xtal)648 void __init s3c2442_init_clocks(int xtal)
649 {
650 s3c2410_common_clk_init(NULL, xtal, 2, S3C24XX_VA_CLKPWR);
651 }
652 #endif
653
654 #ifdef CONFIG_CPU_S3C2443
s3c2443_init_clocks(int xtal)655 void __init s3c2443_init_clocks(int xtal)
656 {
657 s3c2443_common_clk_init(NULL, xtal, 1, S3C24XX_VA_CLKPWR);
658 }
659 #endif
660
661 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2440) || \
662 defined(CONFIG_CPU_S3C2442)
663 static struct resource s3c2410_dclk_resource[] = {
664 [0] = DEFINE_RES_MEM(0x56000084, 0x4),
665 };
666
667 static struct s3c2410_clk_platform_data s3c_clk_platform_data = {
668 .modify_misccr = s3c2410_modify_misccr,
669 };
670
671 struct platform_device s3c2410_device_dclk = {
672 .name = "s3c2410-dclk",
673 .id = 0,
674 .num_resources = ARRAY_SIZE(s3c2410_dclk_resource),
675 .resource = s3c2410_dclk_resource,
676 .dev = {
677 .platform_data = &s3c_clk_platform_data,
678 },
679 };
680 #endif
681