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1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/mach-versatile/core.c | |
3 | * | |
4 | * Copyright (C) 1999 - 2003 ARM Limited | |
5 | * Copyright (C) 2000 Deep Blue Solutions Ltd | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
1da177e4 LT |
21 | #include <linux/init.h> |
22 | #include <linux/device.h> | |
23 | #include <linux/dma-mapping.h> | |
d052d1be | 24 | #include <linux/platform_device.h> |
1da177e4 LT |
25 | #include <linux/sysdev.h> |
26 | #include <linux/interrupt.h> | |
a62c80e5 RK |
27 | #include <linux/amba/bus.h> |
28 | #include <linux/amba/clcd.h> | |
bbeddc43 | 29 | #include <linux/amba/pl061.h> |
6ef297f8 | 30 | #include <linux/amba/mmci.h> |
fced80c7 | 31 | #include <linux/io.h> |
5a0e3ad6 | 32 | #include <linux/gfp.h> |
1da177e4 | 33 | |
71a06da0 | 34 | #include <asm/clkdev.h> |
1da177e4 | 35 | #include <asm/system.h> |
1da177e4 LT |
36 | #include <asm/irq.h> |
37 | #include <asm/leds.h> | |
b720f732 | 38 | #include <asm/hardware/arm_timer.h> |
c5a0adb5 | 39 | #include <asm/hardware/icst.h> |
fa0fe48f | 40 | #include <asm/hardware/vic.h> |
dc5bc8f1 | 41 | #include <asm/mach-types.h> |
1da177e4 LT |
42 | |
43 | #include <asm/mach/arch.h> | |
44 | #include <asm/mach/flash.h> | |
45 | #include <asm/mach/irq.h> | |
46 | #include <asm/mach/time.h> | |
47 | #include <asm/mach/map.h> | |
f4b8b319 | 48 | #include <mach/clkdev.h> |
a285edcf RK |
49 | #include <mach/hardware.h> |
50 | #include <mach/platform.h> | |
e3887714 | 51 | #include <plat/timer-sp.h> |
1da177e4 LT |
52 | |
53 | #include "core.h" | |
1da177e4 LT |
54 | |
55 | /* | |
56 | * All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx | |
57 | * is the (PA >> 12). | |
58 | * | |
59 | * Setup a VA for the Versatile Vectored Interrupt Controller. | |
60 | */ | |
2ad4f86b AV |
61 | #define VA_VIC_BASE __io_address(VERSATILE_VIC_BASE) |
62 | #define VA_SIC_BASE __io_address(VERSATILE_SIC_BASE) | |
1da177e4 | 63 | |
1da177e4 LT |
64 | static void sic_mask_irq(unsigned int irq) |
65 | { | |
66 | irq -= IRQ_SIC_START; | |
67 | writel(1 << irq, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); | |
68 | } | |
69 | ||
70 | static void sic_unmask_irq(unsigned int irq) | |
71 | { | |
72 | irq -= IRQ_SIC_START; | |
73 | writel(1 << irq, VA_SIC_BASE + SIC_IRQ_ENABLE_SET); | |
74 | } | |
75 | ||
38c677cb DB |
76 | static struct irq_chip sic_chip = { |
77 | .name = "SIC", | |
1da177e4 LT |
78 | .ack = sic_mask_irq, |
79 | .mask = sic_mask_irq, | |
80 | .unmask = sic_unmask_irq, | |
81 | }; | |
82 | ||
83 | static void | |
10dd5ce2 | 84 | sic_handle_irq(unsigned int irq, struct irq_desc *desc) |
1da177e4 LT |
85 | { |
86 | unsigned long status = readl(VA_SIC_BASE + SIC_IRQ_STATUS); | |
87 | ||
88 | if (status == 0) { | |
0cd61b68 | 89 | do_bad_IRQ(irq, desc); |
1da177e4 LT |
90 | return; |
91 | } | |
92 | ||
93 | do { | |
94 | irq = ffs(status) - 1; | |
95 | status &= ~(1 << irq); | |
96 | ||
97 | irq += IRQ_SIC_START; | |
98 | ||
d8aa0251 | 99 | generic_handle_irq(irq); |
1da177e4 LT |
100 | } while (status); |
101 | } | |
102 | ||
103 | #if 1 | |
104 | #define IRQ_MMCI0A IRQ_VICSOURCE22 | |
105 | #define IRQ_AACI IRQ_VICSOURCE24 | |
106 | #define IRQ_ETH IRQ_VICSOURCE25 | |
107 | #define PIC_MASK 0xFFD00000 | |
108 | #else | |
109 | #define IRQ_MMCI0A IRQ_SIC_MMCI0A | |
110 | #define IRQ_AACI IRQ_SIC_AACI | |
111 | #define IRQ_ETH IRQ_SIC_ETH | |
112 | #define PIC_MASK 0 | |
113 | #endif | |
114 | ||
115 | void __init versatile_init_irq(void) | |
116 | { | |
fa0fe48f | 117 | unsigned int i; |
1da177e4 | 118 | |
c07f87f2 | 119 | vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0); |
1da177e4 | 120 | |
56f1319e | 121 | set_irq_chained_handler(IRQ_VICSOURCE31, sic_handle_irq); |
1da177e4 LT |
122 | |
123 | /* Do second interrupt controller */ | |
124 | writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); | |
125 | ||
126 | for (i = IRQ_SIC_START; i <= IRQ_SIC_END; i++) { | |
127 | if ((PIC_MASK & (1 << (i - IRQ_SIC_START))) == 0) { | |
128 | set_irq_chip(i, &sic_chip); | |
10dd5ce2 | 129 | set_irq_handler(i, handle_level_irq); |
1da177e4 LT |
130 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); |
131 | } | |
132 | } | |
133 | ||
134 | /* | |
135 | * Interrupts on secondary controller from 0 to 8 are routed to | |
136 | * source 31 on PIC. | |
137 | * Interrupts from 21 to 31 are routed directly to the VIC on | |
138 | * the corresponding number on primary controller. This is controlled | |
139 | * by setting PIC_ENABLEx. | |
140 | */ | |
141 | writel(PIC_MASK, VA_SIC_BASE + SIC_INT_PIC_ENABLE); | |
142 | } | |
143 | ||
144 | static struct map_desc versatile_io_desc[] __initdata = { | |
1311521f DS |
145 | { |
146 | .virtual = IO_ADDRESS(VERSATILE_SYS_BASE), | |
147 | .pfn = __phys_to_pfn(VERSATILE_SYS_BASE), | |
148 | .length = SZ_4K, | |
149 | .type = MT_DEVICE | |
150 | }, { | |
151 | .virtual = IO_ADDRESS(VERSATILE_SIC_BASE), | |
152 | .pfn = __phys_to_pfn(VERSATILE_SIC_BASE), | |
153 | .length = SZ_4K, | |
154 | .type = MT_DEVICE | |
155 | }, { | |
156 | .virtual = IO_ADDRESS(VERSATILE_VIC_BASE), | |
157 | .pfn = __phys_to_pfn(VERSATILE_VIC_BASE), | |
158 | .length = SZ_4K, | |
159 | .type = MT_DEVICE | |
160 | }, { | |
161 | .virtual = IO_ADDRESS(VERSATILE_SCTL_BASE), | |
162 | .pfn = __phys_to_pfn(VERSATILE_SCTL_BASE), | |
163 | .length = SZ_4K * 9, | |
164 | .type = MT_DEVICE | |
165 | }, | |
1da177e4 | 166 | #ifdef CONFIG_MACH_VERSATILE_AB |
1311521f DS |
167 | { |
168 | .virtual = IO_ADDRESS(VERSATILE_GPIO0_BASE), | |
169 | .pfn = __phys_to_pfn(VERSATILE_GPIO0_BASE), | |
170 | .length = SZ_4K, | |
171 | .type = MT_DEVICE | |
172 | }, { | |
173 | .virtual = IO_ADDRESS(VERSATILE_IB2_BASE), | |
174 | .pfn = __phys_to_pfn(VERSATILE_IB2_BASE), | |
175 | .length = SZ_64M, | |
176 | .type = MT_DEVICE | |
177 | }, | |
1da177e4 LT |
178 | #endif |
179 | #ifdef CONFIG_DEBUG_LL | |
1311521f DS |
180 | { |
181 | .virtual = IO_ADDRESS(VERSATILE_UART0_BASE), | |
182 | .pfn = __phys_to_pfn(VERSATILE_UART0_BASE), | |
183 | .length = SZ_4K, | |
184 | .type = MT_DEVICE | |
185 | }, | |
1da177e4 | 186 | #endif |
c0da085a | 187 | #ifdef CONFIG_PCI |
1311521f DS |
188 | { |
189 | .virtual = IO_ADDRESS(VERSATILE_PCI_CORE_BASE), | |
190 | .pfn = __phys_to_pfn(VERSATILE_PCI_CORE_BASE), | |
191 | .length = SZ_4K, | |
192 | .type = MT_DEVICE | |
193 | }, { | |
399ad77b | 194 | .virtual = (unsigned long)VERSATILE_PCI_VIRT_BASE, |
1311521f DS |
195 | .pfn = __phys_to_pfn(VERSATILE_PCI_BASE), |
196 | .length = VERSATILE_PCI_BASE_SIZE, | |
197 | .type = MT_DEVICE | |
198 | }, { | |
399ad77b | 199 | .virtual = (unsigned long)VERSATILE_PCI_CFG_VIRT_BASE, |
1311521f DS |
200 | .pfn = __phys_to_pfn(VERSATILE_PCI_CFG_BASE), |
201 | .length = VERSATILE_PCI_CFG_BASE_SIZE, | |
202 | .type = MT_DEVICE | |
203 | }, | |
c0da085a | 204 | #if 0 |
1311521f DS |
205 | { |
206 | .virtual = VERSATILE_PCI_VIRT_MEM_BASE0, | |
207 | .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE0), | |
208 | .length = SZ_16M, | |
209 | .type = MT_DEVICE | |
210 | }, { | |
211 | .virtual = VERSATILE_PCI_VIRT_MEM_BASE1, | |
212 | .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE1), | |
213 | .length = SZ_16M, | |
214 | .type = MT_DEVICE | |
215 | }, { | |
216 | .virtual = VERSATILE_PCI_VIRT_MEM_BASE2, | |
217 | .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE2), | |
218 | .length = SZ_16M, | |
219 | .type = MT_DEVICE | |
220 | }, | |
c0da085a | 221 | #endif |
1da177e4 LT |
222 | #endif |
223 | }; | |
224 | ||
225 | void __init versatile_map_io(void) | |
226 | { | |
227 | iotable_init(versatile_io_desc, ARRAY_SIZE(versatile_io_desc)); | |
228 | } | |
229 | ||
1da177e4 | 230 | |
2ad4f86b | 231 | #define VERSATILE_FLASHCTRL (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET) |
1da177e4 LT |
232 | |
233 | static int versatile_flash_init(void) | |
234 | { | |
235 | u32 val; | |
236 | ||
237 | val = __raw_readl(VERSATILE_FLASHCTRL); | |
238 | val &= ~VERSATILE_FLASHPROG_FLVPPEN; | |
239 | __raw_writel(val, VERSATILE_FLASHCTRL); | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
244 | static void versatile_flash_exit(void) | |
245 | { | |
246 | u32 val; | |
247 | ||
248 | val = __raw_readl(VERSATILE_FLASHCTRL); | |
249 | val &= ~VERSATILE_FLASHPROG_FLVPPEN; | |
250 | __raw_writel(val, VERSATILE_FLASHCTRL); | |
251 | } | |
252 | ||
253 | static void versatile_flash_set_vpp(int on) | |
254 | { | |
255 | u32 val; | |
256 | ||
257 | val = __raw_readl(VERSATILE_FLASHCTRL); | |
258 | if (on) | |
259 | val |= VERSATILE_FLASHPROG_FLVPPEN; | |
260 | else | |
261 | val &= ~VERSATILE_FLASHPROG_FLVPPEN; | |
262 | __raw_writel(val, VERSATILE_FLASHCTRL); | |
263 | } | |
264 | ||
265 | static struct flash_platform_data versatile_flash_data = { | |
266 | .map_name = "cfi_probe", | |
267 | .width = 4, | |
268 | .init = versatile_flash_init, | |
269 | .exit = versatile_flash_exit, | |
270 | .set_vpp = versatile_flash_set_vpp, | |
271 | }; | |
272 | ||
273 | static struct resource versatile_flash_resource = { | |
274 | .start = VERSATILE_FLASH_BASE, | |
a0c5a645 | 275 | .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1, |
1da177e4 LT |
276 | .flags = IORESOURCE_MEM, |
277 | }; | |
278 | ||
279 | static struct platform_device versatile_flash_device = { | |
280 | .name = "armflash", | |
281 | .id = 0, | |
282 | .dev = { | |
283 | .platform_data = &versatile_flash_data, | |
284 | }, | |
285 | .num_resources = 1, | |
286 | .resource = &versatile_flash_resource, | |
287 | }; | |
288 | ||
289 | static struct resource smc91x_resources[] = { | |
290 | [0] = { | |
291 | .start = VERSATILE_ETH_BASE, | |
292 | .end = VERSATILE_ETH_BASE + SZ_64K - 1, | |
293 | .flags = IORESOURCE_MEM, | |
294 | }, | |
295 | [1] = { | |
296 | .start = IRQ_ETH, | |
297 | .end = IRQ_ETH, | |
298 | .flags = IORESOURCE_IRQ, | |
299 | }, | |
300 | }; | |
301 | ||
302 | static struct platform_device smc91x_device = { | |
303 | .name = "smc91x", | |
304 | .id = 0, | |
305 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
306 | .resource = smc91x_resources, | |
307 | }; | |
308 | ||
6b65cd74 RK |
309 | static struct resource versatile_i2c_resource = { |
310 | .start = VERSATILE_I2C_BASE, | |
311 | .end = VERSATILE_I2C_BASE + SZ_4K - 1, | |
312 | .flags = IORESOURCE_MEM, | |
313 | }; | |
314 | ||
315 | static struct platform_device versatile_i2c_device = { | |
316 | .name = "versatile-i2c", | |
533ad5e6 | 317 | .id = 0, |
6b65cd74 RK |
318 | .num_resources = 1, |
319 | .resource = &versatile_i2c_resource, | |
320 | }; | |
321 | ||
533ad5e6 CM |
322 | static struct i2c_board_info versatile_i2c_board_info[] = { |
323 | { | |
64e8be6e | 324 | I2C_BOARD_INFO("ds1338", 0xd0 >> 1), |
533ad5e6 CM |
325 | }, |
326 | }; | |
327 | ||
328 | static int __init versatile_i2c_init(void) | |
329 | { | |
330 | return i2c_register_board_info(0, versatile_i2c_board_info, | |
331 | ARRAY_SIZE(versatile_i2c_board_info)); | |
332 | } | |
333 | arch_initcall(versatile_i2c_init); | |
334 | ||
2ad4f86b | 335 | #define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) |
1da177e4 LT |
336 | |
337 | unsigned int mmc_status(struct device *dev) | |
338 | { | |
339 | struct amba_device *adev = container_of(dev, struct amba_device, dev); | |
340 | u32 mask; | |
341 | ||
342 | if (adev->res.start == VERSATILE_MMCI0_BASE) | |
343 | mask = 1; | |
344 | else | |
345 | mask = 2; | |
346 | ||
347 | return readl(VERSATILE_SYSMCI) & mask; | |
348 | } | |
349 | ||
6ef297f8 | 350 | static struct mmci_platform_data mmc0_plat_data = { |
1da177e4 LT |
351 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
352 | .status = mmc_status, | |
7fb2bbf4 RK |
353 | .gpio_wp = -1, |
354 | .gpio_cd = -1, | |
1da177e4 LT |
355 | }; |
356 | ||
357 | /* | |
358 | * Clock handling | |
359 | */ | |
39c0cb02 | 360 | static const struct icst_params versatile_oscvco_params = { |
64fceb1d | 361 | .ref = 24000000, |
4de2edbd | 362 | .vco_max = ICST307_VCO_MAX, |
e73a46a3 | 363 | .vco_min = ICST307_VCO_MIN, |
1da177e4 LT |
364 | .vd_min = 4 + 8, |
365 | .vd_max = 511 + 8, | |
366 | .rd_min = 1 + 2, | |
367 | .rd_max = 127 + 2, | |
232eaf7f RK |
368 | .s2div = icst307_s2div, |
369 | .idx2s = icst307_idx2s, | |
1da177e4 LT |
370 | }; |
371 | ||
39c0cb02 | 372 | static void versatile_oscvco_set(struct clk *clk, struct icst_vco vco) |
1da177e4 | 373 | { |
d1914c7e | 374 | void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET; |
1da177e4 LT |
375 | u32 val; |
376 | ||
d1914c7e | 377 | val = readl(clk->vcoreg) & ~0x7ffff; |
1da177e4 LT |
378 | val |= vco.v | (vco.r << 9) | (vco.s << 16); |
379 | ||
380 | writel(0xa05f, sys_lock); | |
d1914c7e | 381 | writel(val, clk->vcoreg); |
1da177e4 LT |
382 | writel(0, sys_lock); |
383 | } | |
384 | ||
9bf5b2ef RK |
385 | static const struct clk_ops osc4_clk_ops = { |
386 | .round = icst_clk_round, | |
387 | .set = icst_clk_set, | |
388 | .setvco = versatile_oscvco_set, | |
389 | }; | |
390 | ||
71a06da0 | 391 | static struct clk osc4_clk = { |
9bf5b2ef | 392 | .ops = &osc4_clk_ops, |
1da177e4 | 393 | .params = &versatile_oscvco_params, |
71a06da0 RK |
394 | }; |
395 | ||
396 | /* | |
397 | * These are fixed clocks. | |
398 | */ | |
399 | static struct clk ref24_clk = { | |
400 | .rate = 24000000, | |
401 | }; | |
402 | ||
982db663 | 403 | static struct clk_lookup lookups[] = { |
71a06da0 RK |
404 | { /* UART0 */ |
405 | .dev_id = "dev:f1", | |
406 | .clk = &ref24_clk, | |
407 | }, { /* UART1 */ | |
408 | .dev_id = "dev:f2", | |
409 | .clk = &ref24_clk, | |
410 | }, { /* UART2 */ | |
411 | .dev_id = "dev:f3", | |
412 | .clk = &ref24_clk, | |
413 | }, { /* UART3 */ | |
414 | .dev_id = "fpga:09", | |
415 | .clk = &ref24_clk, | |
416 | }, { /* KMI0 */ | |
417 | .dev_id = "fpga:06", | |
418 | .clk = &ref24_clk, | |
419 | }, { /* KMI1 */ | |
420 | .dev_id = "fpga:07", | |
421 | .clk = &ref24_clk, | |
422 | }, { /* MMC0 */ | |
423 | .dev_id = "fpga:05", | |
424 | .clk = &ref24_clk, | |
425 | }, { /* MMC1 */ | |
426 | .dev_id = "fpga:0b", | |
427 | .clk = &ref24_clk, | |
428 | }, { /* CLCD */ | |
429 | .dev_id = "dev:20", | |
430 | .clk = &osc4_clk, | |
431 | } | |
1da177e4 LT |
432 | }; |
433 | ||
434 | /* | |
435 | * CLCD support. | |
436 | */ | |
437 | #define SYS_CLCD_MODE_MASK (3 << 0) | |
438 | #define SYS_CLCD_MODE_888 (0 << 0) | |
439 | #define SYS_CLCD_MODE_5551 (1 << 0) | |
440 | #define SYS_CLCD_MODE_565_RLSB (2 << 0) | |
441 | #define SYS_CLCD_MODE_565_BLSB (3 << 0) | |
442 | #define SYS_CLCD_NLCDIOON (1 << 2) | |
443 | #define SYS_CLCD_VDDPOSSWITCH (1 << 3) | |
444 | #define SYS_CLCD_PWR3V5SWITCH (1 << 4) | |
445 | #define SYS_CLCD_ID_MASK (0x1f << 8) | |
446 | #define SYS_CLCD_ID_SANYO_3_8 (0x00 << 8) | |
447 | #define SYS_CLCD_ID_UNKNOWN_8_4 (0x01 << 8) | |
448 | #define SYS_CLCD_ID_EPSON_2_2 (0x02 << 8) | |
449 | #define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8) | |
450 | #define SYS_CLCD_ID_VGA (0x1f << 8) | |
451 | ||
452 | static struct clcd_panel vga = { | |
453 | .mode = { | |
454 | .name = "VGA", | |
455 | .refresh = 60, | |
456 | .xres = 640, | |
457 | .yres = 480, | |
458 | .pixclock = 39721, | |
459 | .left_margin = 40, | |
460 | .right_margin = 24, | |
461 | .upper_margin = 32, | |
462 | .lower_margin = 11, | |
463 | .hsync_len = 96, | |
464 | .vsync_len = 2, | |
465 | .sync = 0, | |
466 | .vmode = FB_VMODE_NONINTERLACED, | |
467 | }, | |
468 | .width = -1, | |
469 | .height = -1, | |
470 | .tim2 = TIM2_BCD | TIM2_IPC, | |
471 | .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), | |
472 | .bpp = 16, | |
473 | }; | |
474 | ||
475 | static struct clcd_panel sanyo_3_8_in = { | |
476 | .mode = { | |
477 | .name = "Sanyo QVGA", | |
478 | .refresh = 116, | |
479 | .xres = 320, | |
480 | .yres = 240, | |
481 | .pixclock = 100000, | |
482 | .left_margin = 6, | |
483 | .right_margin = 6, | |
484 | .upper_margin = 5, | |
485 | .lower_margin = 5, | |
486 | .hsync_len = 6, | |
487 | .vsync_len = 6, | |
488 | .sync = 0, | |
489 | .vmode = FB_VMODE_NONINTERLACED, | |
490 | }, | |
491 | .width = -1, | |
492 | .height = -1, | |
493 | .tim2 = TIM2_BCD, | |
494 | .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), | |
495 | .bpp = 16, | |
496 | }; | |
497 | ||
498 | static struct clcd_panel sanyo_2_5_in = { | |
499 | .mode = { | |
500 | .name = "Sanyo QVGA Portrait", | |
501 | .refresh = 116, | |
502 | .xres = 240, | |
503 | .yres = 320, | |
504 | .pixclock = 100000, | |
505 | .left_margin = 20, | |
506 | .right_margin = 10, | |
507 | .upper_margin = 2, | |
508 | .lower_margin = 2, | |
509 | .hsync_len = 10, | |
510 | .vsync_len = 2, | |
511 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
512 | .vmode = FB_VMODE_NONINTERLACED, | |
513 | }, | |
514 | .width = -1, | |
515 | .height = -1, | |
516 | .tim2 = TIM2_IVS | TIM2_IHS | TIM2_IPC, | |
517 | .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), | |
518 | .bpp = 16, | |
519 | }; | |
520 | ||
521 | static struct clcd_panel epson_2_2_in = { | |
522 | .mode = { | |
523 | .name = "Epson QCIF", | |
524 | .refresh = 390, | |
525 | .xres = 176, | |
526 | .yres = 220, | |
527 | .pixclock = 62500, | |
528 | .left_margin = 3, | |
529 | .right_margin = 2, | |
530 | .upper_margin = 1, | |
531 | .lower_margin = 0, | |
532 | .hsync_len = 3, | |
533 | .vsync_len = 2, | |
534 | .sync = 0, | |
535 | .vmode = FB_VMODE_NONINTERLACED, | |
536 | }, | |
537 | .width = -1, | |
538 | .height = -1, | |
539 | .tim2 = TIM2_BCD | TIM2_IPC, | |
540 | .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), | |
541 | .bpp = 16, | |
542 | }; | |
543 | ||
544 | /* | |
545 | * Detect which LCD panel is connected, and return the appropriate | |
546 | * clcd_panel structure. Note: we do not have any information on | |
547 | * the required timings for the 8.4in panel, so we presently assume | |
548 | * VGA timings. | |
549 | */ | |
550 | static struct clcd_panel *versatile_clcd_panel(void) | |
551 | { | |
2ad4f86b | 552 | void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; |
1da177e4 LT |
553 | struct clcd_panel *panel = &vga; |
554 | u32 val; | |
555 | ||
556 | val = readl(sys_clcd) & SYS_CLCD_ID_MASK; | |
557 | if (val == SYS_CLCD_ID_SANYO_3_8) | |
558 | panel = &sanyo_3_8_in; | |
559 | else if (val == SYS_CLCD_ID_SANYO_2_5) | |
560 | panel = &sanyo_2_5_in; | |
561 | else if (val == SYS_CLCD_ID_EPSON_2_2) | |
562 | panel = &epson_2_2_in; | |
563 | else if (val == SYS_CLCD_ID_VGA) | |
564 | panel = &vga; | |
565 | else { | |
566 | printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n", | |
567 | val); | |
568 | panel = &vga; | |
569 | } | |
570 | ||
571 | return panel; | |
572 | } | |
573 | ||
574 | /* | |
575 | * Disable all display connectors on the interface module. | |
576 | */ | |
577 | static void versatile_clcd_disable(struct clcd_fb *fb) | |
578 | { | |
2ad4f86b | 579 | void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; |
1da177e4 LT |
580 | u32 val; |
581 | ||
582 | val = readl(sys_clcd); | |
583 | val &= ~SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; | |
584 | writel(val, sys_clcd); | |
585 | ||
586 | #ifdef CONFIG_MACH_VERSATILE_AB | |
587 | /* | |
588 | * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off | |
589 | */ | |
dc5bc8f1 | 590 | if (machine_is_versatile_ab() && fb->panel == &sanyo_2_5_in) { |
2ad4f86b | 591 | void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); |
1da177e4 LT |
592 | unsigned long ctrl; |
593 | ||
594 | ctrl = readl(versatile_ib2_ctrl); | |
595 | ctrl &= ~0x01; | |
596 | writel(ctrl, versatile_ib2_ctrl); | |
597 | } | |
598 | #endif | |
599 | } | |
600 | ||
601 | /* | |
602 | * Enable the relevant connector on the interface module. | |
603 | */ | |
604 | static void versatile_clcd_enable(struct clcd_fb *fb) | |
605 | { | |
2ad4f86b | 606 | void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; |
1da177e4 LT |
607 | u32 val; |
608 | ||
609 | val = readl(sys_clcd); | |
610 | val &= ~SYS_CLCD_MODE_MASK; | |
611 | ||
612 | switch (fb->fb.var.green.length) { | |
613 | case 5: | |
614 | val |= SYS_CLCD_MODE_5551; | |
615 | break; | |
616 | case 6: | |
90ef713b | 617 | val |= SYS_CLCD_MODE_565_RLSB; |
1da177e4 LT |
618 | break; |
619 | case 8: | |
620 | val |= SYS_CLCD_MODE_888; | |
621 | break; | |
622 | } | |
623 | ||
624 | /* | |
625 | * Set the MUX | |
626 | */ | |
627 | writel(val, sys_clcd); | |
628 | ||
629 | /* | |
630 | * And now enable the PSUs | |
631 | */ | |
632 | val |= SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; | |
633 | writel(val, sys_clcd); | |
634 | ||
635 | #ifdef CONFIG_MACH_VERSATILE_AB | |
636 | /* | |
637 | * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on | |
638 | */ | |
dc5bc8f1 | 639 | if (machine_is_versatile_ab() && fb->panel == &sanyo_2_5_in) { |
2ad4f86b | 640 | void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); |
1da177e4 LT |
641 | unsigned long ctrl; |
642 | ||
643 | ctrl = readl(versatile_ib2_ctrl); | |
644 | ctrl |= 0x01; | |
645 | writel(ctrl, versatile_ib2_ctrl); | |
646 | } | |
647 | #endif | |
648 | } | |
649 | ||
650 | static unsigned long framesize = SZ_1M; | |
651 | ||
652 | static int versatile_clcd_setup(struct clcd_fb *fb) | |
653 | { | |
654 | dma_addr_t dma; | |
655 | ||
656 | fb->panel = versatile_clcd_panel(); | |
657 | ||
658 | fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize, | |
659 | &dma, GFP_KERNEL); | |
660 | if (!fb->fb.screen_base) { | |
661 | printk(KERN_ERR "CLCD: unable to map framebuffer\n"); | |
662 | return -ENOMEM; | |
663 | } | |
664 | ||
665 | fb->fb.fix.smem_start = dma; | |
666 | fb->fb.fix.smem_len = framesize; | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
671 | static int versatile_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma) | |
672 | { | |
673 | return dma_mmap_writecombine(&fb->dev->dev, vma, | |
674 | fb->fb.screen_base, | |
675 | fb->fb.fix.smem_start, | |
676 | fb->fb.fix.smem_len); | |
677 | } | |
678 | ||
679 | static void versatile_clcd_remove(struct clcd_fb *fb) | |
680 | { | |
681 | dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len, | |
682 | fb->fb.screen_base, fb->fb.fix.smem_start); | |
683 | } | |
684 | ||
685 | static struct clcd_board clcd_plat_data = { | |
686 | .name = "Versatile", | |
687 | .check = clcdfb_check, | |
688 | .decode = clcdfb_decode, | |
689 | .disable = versatile_clcd_disable, | |
690 | .enable = versatile_clcd_enable, | |
691 | .setup = versatile_clcd_setup, | |
692 | .mmap = versatile_clcd_mmap, | |
693 | .remove = versatile_clcd_remove, | |
694 | }; | |
695 | ||
bbeddc43 RK |
696 | static struct pl061_platform_data gpio0_plat_data = { |
697 | .gpio_base = 0, | |
698 | .irq_base = IRQ_GPIO0_START, | |
699 | }; | |
700 | ||
701 | static struct pl061_platform_data gpio1_plat_data = { | |
702 | .gpio_base = 8, | |
703 | .irq_base = IRQ_GPIO1_START, | |
704 | }; | |
705 | ||
1da177e4 LT |
706 | #define AACI_IRQ { IRQ_AACI, NO_IRQ } |
707 | #define AACI_DMA { 0x80, 0x81 } | |
708 | #define MMCI0_IRQ { IRQ_MMCI0A,IRQ_SIC_MMCI0B } | |
709 | #define MMCI0_DMA { 0x84, 0 } | |
710 | #define KMI0_IRQ { IRQ_SIC_KMI0, NO_IRQ } | |
711 | #define KMI0_DMA { 0, 0 } | |
712 | #define KMI1_IRQ { IRQ_SIC_KMI1, NO_IRQ } | |
713 | #define KMI1_DMA { 0, 0 } | |
714 | ||
715 | /* | |
716 | * These devices are connected directly to the multi-layer AHB switch | |
717 | */ | |
718 | #define SMC_IRQ { NO_IRQ, NO_IRQ } | |
719 | #define SMC_DMA { 0, 0 } | |
720 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } | |
721 | #define MPMC_DMA { 0, 0 } | |
722 | #define CLCD_IRQ { IRQ_CLCDINT, NO_IRQ } | |
723 | #define CLCD_DMA { 0, 0 } | |
724 | #define DMAC_IRQ { IRQ_DMAINT, NO_IRQ } | |
725 | #define DMAC_DMA { 0, 0 } | |
726 | ||
727 | /* | |
728 | * These devices are connected via the core APB bridge | |
729 | */ | |
730 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } | |
731 | #define SCTL_DMA { 0, 0 } | |
732 | #define WATCHDOG_IRQ { IRQ_WDOGINT, NO_IRQ } | |
733 | #define WATCHDOG_DMA { 0, 0 } | |
734 | #define GPIO0_IRQ { IRQ_GPIOINT0, NO_IRQ } | |
735 | #define GPIO0_DMA { 0, 0 } | |
736 | #define GPIO1_IRQ { IRQ_GPIOINT1, NO_IRQ } | |
737 | #define GPIO1_DMA { 0, 0 } | |
738 | #define RTC_IRQ { IRQ_RTCINT, NO_IRQ } | |
739 | #define RTC_DMA { 0, 0 } | |
740 | ||
741 | /* | |
742 | * These devices are connected via the DMA APB bridge | |
743 | */ | |
744 | #define SCI_IRQ { IRQ_SCIINT, NO_IRQ } | |
745 | #define SCI_DMA { 7, 6 } | |
746 | #define UART0_IRQ { IRQ_UARTINT0, NO_IRQ } | |
747 | #define UART0_DMA { 15, 14 } | |
748 | #define UART1_IRQ { IRQ_UARTINT1, NO_IRQ } | |
749 | #define UART1_DMA { 13, 12 } | |
750 | #define UART2_IRQ { IRQ_UARTINT2, NO_IRQ } | |
751 | #define UART2_DMA { 11, 10 } | |
752 | #define SSP_IRQ { IRQ_SSPINT, NO_IRQ } | |
753 | #define SSP_DMA { 9, 8 } | |
754 | ||
755 | /* FPGA Primecells */ | |
756 | AMBA_DEVICE(aaci, "fpga:04", AACI, NULL); | |
757 | AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &mmc0_plat_data); | |
758 | AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL); | |
759 | AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL); | |
760 | ||
761 | /* DevChip Primecells */ | |
762 | AMBA_DEVICE(smc, "dev:00", SMC, NULL); | |
763 | AMBA_DEVICE(mpmc, "dev:10", MPMC, NULL); | |
764 | AMBA_DEVICE(clcd, "dev:20", CLCD, &clcd_plat_data); | |
765 | AMBA_DEVICE(dmac, "dev:30", DMAC, NULL); | |
766 | AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL); | |
767 | AMBA_DEVICE(wdog, "dev:e1", WATCHDOG, NULL); | |
bbeddc43 RK |
768 | AMBA_DEVICE(gpio0, "dev:e4", GPIO0, &gpio0_plat_data); |
769 | AMBA_DEVICE(gpio1, "dev:e5", GPIO1, &gpio1_plat_data); | |
1da177e4 LT |
770 | AMBA_DEVICE(rtc, "dev:e8", RTC, NULL); |
771 | AMBA_DEVICE(sci0, "dev:f0", SCI, NULL); | |
772 | AMBA_DEVICE(uart0, "dev:f1", UART0, NULL); | |
773 | AMBA_DEVICE(uart1, "dev:f2", UART1, NULL); | |
774 | AMBA_DEVICE(uart2, "dev:f3", UART2, NULL); | |
775 | AMBA_DEVICE(ssp0, "dev:f4", SSP, NULL); | |
776 | ||
777 | static struct amba_device *amba_devs[] __initdata = { | |
778 | &dmac_device, | |
779 | &uart0_device, | |
780 | &uart1_device, | |
781 | &uart2_device, | |
782 | &smc_device, | |
783 | &mpmc_device, | |
784 | &clcd_device, | |
785 | &sctl_device, | |
786 | &wdog_device, | |
787 | &gpio0_device, | |
788 | &gpio1_device, | |
789 | &rtc_device, | |
790 | &sci0_device, | |
791 | &ssp0_device, | |
792 | &aaci_device, | |
793 | &mmc0_device, | |
794 | &kmi0_device, | |
795 | &kmi1_device, | |
796 | }; | |
797 | ||
798 | #ifdef CONFIG_LEDS | |
2ad4f86b | 799 | #define VA_LEDS_BASE (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LED_OFFSET) |
1da177e4 LT |
800 | |
801 | static void versatile_leds_event(led_event_t ledevt) | |
802 | { | |
803 | unsigned long flags; | |
804 | u32 val; | |
805 | ||
806 | local_irq_save(flags); | |
807 | val = readl(VA_LEDS_BASE); | |
808 | ||
809 | switch (ledevt) { | |
810 | case led_idle_start: | |
811 | val = val & ~VERSATILE_SYS_LED0; | |
812 | break; | |
813 | ||
814 | case led_idle_end: | |
815 | val = val | VERSATILE_SYS_LED0; | |
816 | break; | |
817 | ||
818 | case led_timer: | |
819 | val = val ^ VERSATILE_SYS_LED1; | |
820 | break; | |
821 | ||
822 | case led_halted: | |
823 | val = 0; | |
824 | break; | |
825 | ||
826 | default: | |
827 | break; | |
828 | } | |
829 | ||
830 | writel(val, VA_LEDS_BASE); | |
831 | local_irq_restore(flags); | |
832 | } | |
833 | #endif /* CONFIG_LEDS */ | |
834 | ||
835 | void __init versatile_init(void) | |
836 | { | |
837 | int i; | |
838 | ||
d1914c7e RK |
839 | osc4_clk.vcoreg = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSCCLCD_OFFSET; |
840 | ||
0a0300dc | 841 | clkdev_add_table(lookups, ARRAY_SIZE(lookups)); |
1da177e4 LT |
842 | |
843 | platform_device_register(&versatile_flash_device); | |
6b65cd74 | 844 | platform_device_register(&versatile_i2c_device); |
1da177e4 LT |
845 | platform_device_register(&smc91x_device); |
846 | ||
847 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
848 | struct amba_device *d = amba_devs[i]; | |
849 | amba_device_register(d, &iomem_resource); | |
850 | } | |
851 | ||
852 | #ifdef CONFIG_LEDS | |
853 | leds_event = versatile_leds_event; | |
854 | #endif | |
855 | } | |
856 | ||
857 | /* | |
858 | * Where is the timer (VA)? | |
859 | */ | |
2ad4f86b AV |
860 | #define TIMER0_VA_BASE __io_address(VERSATILE_TIMER0_1_BASE) |
861 | #define TIMER1_VA_BASE (__io_address(VERSATILE_TIMER0_1_BASE) + 0x20) | |
862 | #define TIMER2_VA_BASE __io_address(VERSATILE_TIMER2_3_BASE) | |
863 | #define TIMER3_VA_BASE (__io_address(VERSATILE_TIMER2_3_BASE) + 0x20) | |
b49c87c2 | 864 | |
1da177e4 LT |
865 | /* |
866 | * Set up timer interrupt, and return the current time in seconds. | |
867 | */ | |
868 | static void __init versatile_timer_init(void) | |
869 | { | |
b720f732 | 870 | u32 val; |
1da177e4 LT |
871 | |
872 | /* | |
873 | * set clock frequency: | |
874 | * VERSATILE_REFCLK is 32KHz | |
875 | * VERSATILE_TIMCLK is 1MHz | |
876 | */ | |
2ad4f86b | 877 | val = readl(__io_address(VERSATILE_SCTL_BASE)); |
b720f732 RK |
878 | writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | |
879 | (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | | |
880 | (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | | |
881 | (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, | |
2ad4f86b | 882 | __io_address(VERSATILE_SCTL_BASE)); |
1da177e4 LT |
883 | |
884 | /* | |
885 | * Initialise to a known state (all timers off) | |
886 | */ | |
b720f732 RK |
887 | writel(0, TIMER0_VA_BASE + TIMER_CTRL); |
888 | writel(0, TIMER1_VA_BASE + TIMER_CTRL); | |
889 | writel(0, TIMER2_VA_BASE + TIMER_CTRL); | |
890 | writel(0, TIMER3_VA_BASE + TIMER_CTRL); | |
891 | ||
e3887714 RK |
892 | sp804_clocksource_init(TIMER3_VA_BASE); |
893 | sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMERINT0_1); | |
1da177e4 LT |
894 | } |
895 | ||
896 | struct sys_timer versatile_timer = { | |
897 | .init = versatile_timer_init, | |
1da177e4 | 898 | }; |
b49c87c2 | 899 |