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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 | 25 | #include <linux/interrupt.h> |
3ba7222a GL |
26 | #include <linux/irqdomain.h> |
27 | #include <linux/of_address.h> | |
28 | #include <linux/of_platform.h> | |
a62c80e5 RK |
29 | #include <linux/amba/bus.h> |
30 | #include <linux/amba/clcd.h> | |
bbeddc43 | 31 | #include <linux/amba/pl061.h> |
6ef297f8 | 32 | #include <linux/amba/mmci.h> |
ef6f4b12 | 33 | #include <linux/amba/pl022.h> |
fced80c7 | 34 | #include <linux/io.h> |
5a0e3ad6 | 35 | #include <linux/gfp.h> |
6d803ba7 | 36 | #include <linux/clkdev.h> |
68c0e38c | 37 | #include <linux/mtd/physmap.h> |
1da177e4 | 38 | |
1da177e4 LT |
39 | #include <asm/irq.h> |
40 | #include <asm/leds.h> | |
b720f732 | 41 | #include <asm/hardware/arm_timer.h> |
c5a0adb5 | 42 | #include <asm/hardware/icst.h> |
fa0fe48f | 43 | #include <asm/hardware/vic.h> |
dc5bc8f1 | 44 | #include <asm/mach-types.h> |
1da177e4 LT |
45 | |
46 | #include <asm/mach/arch.h> | |
1da177e4 LT |
47 | #include <asm/mach/irq.h> |
48 | #include <asm/mach/time.h> | |
49 | #include <asm/mach/map.h> | |
a285edcf RK |
50 | #include <mach/hardware.h> |
51 | #include <mach/platform.h> | |
8a9618f5 | 52 | #include <asm/hardware/timer-sp.h> |
1da177e4 | 53 | |
3414ba8c | 54 | #include <plat/clcd.h> |
c41b16f8 | 55 | #include <plat/fpga-irq.h> |
1da0c89c RK |
56 | #include <plat/sched_clock.h> |
57 | ||
1da177e4 | 58 | #include "core.h" |
1da177e4 LT |
59 | |
60 | /* | |
61 | * All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx | |
62 | * is the (PA >> 12). | |
63 | * | |
64 | * Setup a VA for the Versatile Vectored Interrupt Controller. | |
65 | */ | |
2ad4f86b AV |
66 | #define VA_VIC_BASE __io_address(VERSATILE_VIC_BASE) |
67 | #define VA_SIC_BASE __io_address(VERSATILE_SIC_BASE) | |
1da177e4 | 68 | |
1da177e4 LT |
69 | #if 1 |
70 | #define IRQ_MMCI0A IRQ_VICSOURCE22 | |
71 | #define IRQ_AACI IRQ_VICSOURCE24 | |
72 | #define IRQ_ETH IRQ_VICSOURCE25 | |
73 | #define PIC_MASK 0xFFD00000 | |
74 | #else | |
75 | #define IRQ_MMCI0A IRQ_SIC_MMCI0A | |
76 | #define IRQ_AACI IRQ_SIC_AACI | |
77 | #define IRQ_ETH IRQ_SIC_ETH | |
78 | #define PIC_MASK 0 | |
79 | #endif | |
80 | ||
3ba7222a GL |
81 | /* Lookup table for finding a DT node that represents the vic instance */ |
82 | static const struct of_device_id vic_of_match[] __initconst = { | |
83 | { .compatible = "arm,versatile-vic", }, | |
84 | {} | |
85 | }; | |
86 | ||
87 | static const struct of_device_id sic_of_match[] __initconst = { | |
88 | { .compatible = "arm,versatile-sic", }, | |
89 | {} | |
90 | }; | |
91 | ||
1da177e4 LT |
92 | void __init versatile_init_irq(void) |
93 | { | |
75294957 GL |
94 | struct device_node *np; |
95 | ||
96 | np = of_find_matching_node_by_address(NULL, vic_of_match, | |
97 | VERSATILE_VIC_BASE); | |
98 | __vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0, np); | |
1da177e4 | 99 | |
1da177e4 LT |
100 | writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); |
101 | ||
3108e6ab LW |
102 | np = of_find_matching_node_by_address(NULL, sic_of_match, |
103 | VERSATILE_SIC_BASE); | |
104 | ||
105 | fpga_irq_init(VA_SIC_BASE, "SIC", IRQ_SIC_START, | |
106 | IRQ_VICSOURCE31, ~PIC_MASK, np); | |
1da177e4 LT |
107 | |
108 | /* | |
109 | * Interrupts on secondary controller from 0 to 8 are routed to | |
110 | * source 31 on PIC. | |
111 | * Interrupts from 21 to 31 are routed directly to the VIC on | |
112 | * the corresponding number on primary controller. This is controlled | |
113 | * by setting PIC_ENABLEx. | |
114 | */ | |
115 | writel(PIC_MASK, VA_SIC_BASE + SIC_INT_PIC_ENABLE); | |
116 | } | |
117 | ||
118 | static struct map_desc versatile_io_desc[] __initdata = { | |
1311521f DS |
119 | { |
120 | .virtual = IO_ADDRESS(VERSATILE_SYS_BASE), | |
121 | .pfn = __phys_to_pfn(VERSATILE_SYS_BASE), | |
122 | .length = SZ_4K, | |
123 | .type = MT_DEVICE | |
124 | }, { | |
125 | .virtual = IO_ADDRESS(VERSATILE_SIC_BASE), | |
126 | .pfn = __phys_to_pfn(VERSATILE_SIC_BASE), | |
127 | .length = SZ_4K, | |
128 | .type = MT_DEVICE | |
129 | }, { | |
130 | .virtual = IO_ADDRESS(VERSATILE_VIC_BASE), | |
131 | .pfn = __phys_to_pfn(VERSATILE_VIC_BASE), | |
132 | .length = SZ_4K, | |
133 | .type = MT_DEVICE | |
134 | }, { | |
135 | .virtual = IO_ADDRESS(VERSATILE_SCTL_BASE), | |
136 | .pfn = __phys_to_pfn(VERSATILE_SCTL_BASE), | |
137 | .length = SZ_4K * 9, | |
138 | .type = MT_DEVICE | |
139 | }, | |
1da177e4 | 140 | #ifdef CONFIG_MACH_VERSATILE_AB |
1311521f | 141 | { |
1311521f DS |
142 | .virtual = IO_ADDRESS(VERSATILE_IB2_BASE), |
143 | .pfn = __phys_to_pfn(VERSATILE_IB2_BASE), | |
144 | .length = SZ_64M, | |
145 | .type = MT_DEVICE | |
146 | }, | |
1da177e4 LT |
147 | #endif |
148 | #ifdef CONFIG_DEBUG_LL | |
1311521f DS |
149 | { |
150 | .virtual = IO_ADDRESS(VERSATILE_UART0_BASE), | |
151 | .pfn = __phys_to_pfn(VERSATILE_UART0_BASE), | |
152 | .length = SZ_4K, | |
153 | .type = MT_DEVICE | |
154 | }, | |
1da177e4 | 155 | #endif |
c0da085a | 156 | #ifdef CONFIG_PCI |
1311521f DS |
157 | { |
158 | .virtual = IO_ADDRESS(VERSATILE_PCI_CORE_BASE), | |
159 | .pfn = __phys_to_pfn(VERSATILE_PCI_CORE_BASE), | |
160 | .length = SZ_4K, | |
161 | .type = MT_DEVICE | |
162 | }, { | |
399ad77b | 163 | .virtual = (unsigned long)VERSATILE_PCI_VIRT_BASE, |
1311521f DS |
164 | .pfn = __phys_to_pfn(VERSATILE_PCI_BASE), |
165 | .length = VERSATILE_PCI_BASE_SIZE, | |
166 | .type = MT_DEVICE | |
167 | }, { | |
399ad77b | 168 | .virtual = (unsigned long)VERSATILE_PCI_CFG_VIRT_BASE, |
1311521f DS |
169 | .pfn = __phys_to_pfn(VERSATILE_PCI_CFG_BASE), |
170 | .length = VERSATILE_PCI_CFG_BASE_SIZE, | |
171 | .type = MT_DEVICE | |
172 | }, | |
c0da085a | 173 | #if 0 |
1311521f DS |
174 | { |
175 | .virtual = VERSATILE_PCI_VIRT_MEM_BASE0, | |
176 | .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE0), | |
177 | .length = SZ_16M, | |
178 | .type = MT_DEVICE | |
179 | }, { | |
180 | .virtual = VERSATILE_PCI_VIRT_MEM_BASE1, | |
181 | .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE1), | |
182 | .length = SZ_16M, | |
183 | .type = MT_DEVICE | |
184 | }, { | |
185 | .virtual = VERSATILE_PCI_VIRT_MEM_BASE2, | |
186 | .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE2), | |
187 | .length = SZ_16M, | |
188 | .type = MT_DEVICE | |
189 | }, | |
c0da085a | 190 | #endif |
1da177e4 LT |
191 | #endif |
192 | }; | |
193 | ||
194 | void __init versatile_map_io(void) | |
195 | { | |
196 | iotable_init(versatile_io_desc, ARRAY_SIZE(versatile_io_desc)); | |
197 | } | |
198 | ||
1da177e4 | 199 | |
2ad4f86b | 200 | #define VERSATILE_FLASHCTRL (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET) |
1da177e4 | 201 | |
667f390b | 202 | static void versatile_flash_set_vpp(struct platform_device *pdev, int on) |
1da177e4 LT |
203 | { |
204 | u32 val; | |
205 | ||
206 | val = __raw_readl(VERSATILE_FLASHCTRL); | |
207 | if (on) | |
208 | val |= VERSATILE_FLASHPROG_FLVPPEN; | |
209 | else | |
210 | val &= ~VERSATILE_FLASHPROG_FLVPPEN; | |
211 | __raw_writel(val, VERSATILE_FLASHCTRL); | |
212 | } | |
213 | ||
68c0e38c | 214 | static struct physmap_flash_data versatile_flash_data = { |
1da177e4 | 215 | .width = 4, |
1da177e4 LT |
216 | .set_vpp = versatile_flash_set_vpp, |
217 | }; | |
218 | ||
219 | static struct resource versatile_flash_resource = { | |
220 | .start = VERSATILE_FLASH_BASE, | |
a0c5a645 | 221 | .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1, |
1da177e4 LT |
222 | .flags = IORESOURCE_MEM, |
223 | }; | |
224 | ||
225 | static struct platform_device versatile_flash_device = { | |
68c0e38c | 226 | .name = "physmap-flash", |
1da177e4 LT |
227 | .id = 0, |
228 | .dev = { | |
229 | .platform_data = &versatile_flash_data, | |
230 | }, | |
231 | .num_resources = 1, | |
232 | .resource = &versatile_flash_resource, | |
233 | }; | |
234 | ||
235 | static struct resource smc91x_resources[] = { | |
236 | [0] = { | |
237 | .start = VERSATILE_ETH_BASE, | |
238 | .end = VERSATILE_ETH_BASE + SZ_64K - 1, | |
239 | .flags = IORESOURCE_MEM, | |
240 | }, | |
241 | [1] = { | |
242 | .start = IRQ_ETH, | |
243 | .end = IRQ_ETH, | |
244 | .flags = IORESOURCE_IRQ, | |
245 | }, | |
246 | }; | |
247 | ||
248 | static struct platform_device smc91x_device = { | |
249 | .name = "smc91x", | |
250 | .id = 0, | |
251 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
252 | .resource = smc91x_resources, | |
253 | }; | |
254 | ||
6b65cd74 RK |
255 | static struct resource versatile_i2c_resource = { |
256 | .start = VERSATILE_I2C_BASE, | |
257 | .end = VERSATILE_I2C_BASE + SZ_4K - 1, | |
258 | .flags = IORESOURCE_MEM, | |
259 | }; | |
260 | ||
261 | static struct platform_device versatile_i2c_device = { | |
262 | .name = "versatile-i2c", | |
533ad5e6 | 263 | .id = 0, |
6b65cd74 RK |
264 | .num_resources = 1, |
265 | .resource = &versatile_i2c_resource, | |
266 | }; | |
267 | ||
533ad5e6 CM |
268 | static struct i2c_board_info versatile_i2c_board_info[] = { |
269 | { | |
64e8be6e | 270 | I2C_BOARD_INFO("ds1338", 0xd0 >> 1), |
533ad5e6 CM |
271 | }, |
272 | }; | |
273 | ||
274 | static int __init versatile_i2c_init(void) | |
275 | { | |
276 | return i2c_register_board_info(0, versatile_i2c_board_info, | |
277 | ARRAY_SIZE(versatile_i2c_board_info)); | |
278 | } | |
279 | arch_initcall(versatile_i2c_init); | |
280 | ||
2ad4f86b | 281 | #define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET) |
1da177e4 LT |
282 | |
283 | unsigned int mmc_status(struct device *dev) | |
284 | { | |
285 | struct amba_device *adev = container_of(dev, struct amba_device, dev); | |
286 | u32 mask; | |
287 | ||
288 | if (adev->res.start == VERSATILE_MMCI0_BASE) | |
289 | mask = 1; | |
290 | else | |
291 | mask = 2; | |
292 | ||
293 | return readl(VERSATILE_SYSMCI) & mask; | |
294 | } | |
295 | ||
6ef297f8 | 296 | static struct mmci_platform_data mmc0_plat_data = { |
1da177e4 LT |
297 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
298 | .status = mmc_status, | |
7fb2bbf4 RK |
299 | .gpio_wp = -1, |
300 | .gpio_cd = -1, | |
1da177e4 LT |
301 | }; |
302 | ||
e2823266 | 303 | static struct resource char_lcd_resources[] = { |
d161edfb LW |
304 | { |
305 | .start = VERSATILE_CHAR_LCD_BASE, | |
306 | .end = (VERSATILE_CHAR_LCD_BASE + SZ_4K - 1), | |
307 | .flags = IORESOURCE_MEM, | |
308 | }, | |
309 | }; | |
310 | ||
311 | static struct platform_device char_lcd_device = { | |
312 | .name = "arm-charlcd", | |
313 | .id = -1, | |
314 | .num_resources = ARRAY_SIZE(char_lcd_resources), | |
315 | .resource = char_lcd_resources, | |
316 | }; | |
317 | ||
1da177e4 LT |
318 | /* |
319 | * Clock handling | |
320 | */ | |
39c0cb02 | 321 | static const struct icst_params versatile_oscvco_params = { |
64fceb1d | 322 | .ref = 24000000, |
4de2edbd | 323 | .vco_max = ICST307_VCO_MAX, |
e73a46a3 | 324 | .vco_min = ICST307_VCO_MIN, |
1da177e4 LT |
325 | .vd_min = 4 + 8, |
326 | .vd_max = 511 + 8, | |
327 | .rd_min = 1 + 2, | |
328 | .rd_max = 127 + 2, | |
232eaf7f RK |
329 | .s2div = icst307_s2div, |
330 | .idx2s = icst307_idx2s, | |
1da177e4 LT |
331 | }; |
332 | ||
39c0cb02 | 333 | static void versatile_oscvco_set(struct clk *clk, struct icst_vco vco) |
1da177e4 | 334 | { |
d1914c7e | 335 | void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET; |
1da177e4 LT |
336 | u32 val; |
337 | ||
d1914c7e | 338 | val = readl(clk->vcoreg) & ~0x7ffff; |
1da177e4 LT |
339 | val |= vco.v | (vco.r << 9) | (vco.s << 16); |
340 | ||
341 | writel(0xa05f, sys_lock); | |
d1914c7e | 342 | writel(val, clk->vcoreg); |
1da177e4 LT |
343 | writel(0, sys_lock); |
344 | } | |
345 | ||
9bf5b2ef RK |
346 | static const struct clk_ops osc4_clk_ops = { |
347 | .round = icst_clk_round, | |
348 | .set = icst_clk_set, | |
349 | .setvco = versatile_oscvco_set, | |
350 | }; | |
351 | ||
71a06da0 | 352 | static struct clk osc4_clk = { |
9bf5b2ef | 353 | .ops = &osc4_clk_ops, |
1da177e4 | 354 | .params = &versatile_oscvco_params, |
71a06da0 RK |
355 | }; |
356 | ||
357 | /* | |
358 | * These are fixed clocks. | |
359 | */ | |
360 | static struct clk ref24_clk = { | |
361 | .rate = 24000000, | |
362 | }; | |
363 | ||
7ff550de RK |
364 | static struct clk sp804_clk = { |
365 | .rate = 1000000, | |
366 | }; | |
367 | ||
3126c7bc RK |
368 | static struct clk dummy_apb_pclk; |
369 | ||
982db663 | 370 | static struct clk_lookup lookups[] = { |
3126c7bc RK |
371 | { /* AMBA bus clock */ |
372 | .con_id = "apb_pclk", | |
373 | .clk = &dummy_apb_pclk, | |
374 | }, { /* UART0 */ | |
71a06da0 RK |
375 | .dev_id = "dev:f1", |
376 | .clk = &ref24_clk, | |
377 | }, { /* UART1 */ | |
378 | .dev_id = "dev:f2", | |
379 | .clk = &ref24_clk, | |
380 | }, { /* UART2 */ | |
381 | .dev_id = "dev:f3", | |
382 | .clk = &ref24_clk, | |
383 | }, { /* UART3 */ | |
384 | .dev_id = "fpga:09", | |
385 | .clk = &ref24_clk, | |
386 | }, { /* KMI0 */ | |
387 | .dev_id = "fpga:06", | |
388 | .clk = &ref24_clk, | |
389 | }, { /* KMI1 */ | |
390 | .dev_id = "fpga:07", | |
391 | .clk = &ref24_clk, | |
392 | }, { /* MMC0 */ | |
393 | .dev_id = "fpga:05", | |
394 | .clk = &ref24_clk, | |
395 | }, { /* MMC1 */ | |
396 | .dev_id = "fpga:0b", | |
397 | .clk = &ref24_clk, | |
ef6f4b12 LW |
398 | }, { /* SSP */ |
399 | .dev_id = "dev:f4", | |
400 | .clk = &ref24_clk, | |
71a06da0 RK |
401 | }, { /* CLCD */ |
402 | .dev_id = "dev:20", | |
403 | .clk = &osc4_clk, | |
7ff550de RK |
404 | }, { /* SP804 timers */ |
405 | .dev_id = "sp804", | |
406 | .clk = &sp804_clk, | |
407 | }, | |
1da177e4 LT |
408 | }; |
409 | ||
410 | /* | |
411 | * CLCD support. | |
412 | */ | |
413 | #define SYS_CLCD_MODE_MASK (3 << 0) | |
414 | #define SYS_CLCD_MODE_888 (0 << 0) | |
415 | #define SYS_CLCD_MODE_5551 (1 << 0) | |
416 | #define SYS_CLCD_MODE_565_RLSB (2 << 0) | |
417 | #define SYS_CLCD_MODE_565_BLSB (3 << 0) | |
418 | #define SYS_CLCD_NLCDIOON (1 << 2) | |
419 | #define SYS_CLCD_VDDPOSSWITCH (1 << 3) | |
420 | #define SYS_CLCD_PWR3V5SWITCH (1 << 4) | |
421 | #define SYS_CLCD_ID_MASK (0x1f << 8) | |
422 | #define SYS_CLCD_ID_SANYO_3_8 (0x00 << 8) | |
423 | #define SYS_CLCD_ID_UNKNOWN_8_4 (0x01 << 8) | |
424 | #define SYS_CLCD_ID_EPSON_2_2 (0x02 << 8) | |
425 | #define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8) | |
426 | #define SYS_CLCD_ID_VGA (0x1f << 8) | |
427 | ||
3414ba8c | 428 | static bool is_sanyo_2_5_lcd; |
1da177e4 LT |
429 | |
430 | /* | |
431 | * Disable all display connectors on the interface module. | |
432 | */ | |
433 | static void versatile_clcd_disable(struct clcd_fb *fb) | |
434 | { | |
2ad4f86b | 435 | void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; |
1da177e4 LT |
436 | u32 val; |
437 | ||
438 | val = readl(sys_clcd); | |
439 | val &= ~SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; | |
440 | writel(val, sys_clcd); | |
441 | ||
442 | #ifdef CONFIG_MACH_VERSATILE_AB | |
443 | /* | |
444 | * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off | |
445 | */ | |
3414ba8c | 446 | if (machine_is_versatile_ab() && is_sanyo_2_5_lcd) { |
2ad4f86b | 447 | void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); |
1da177e4 LT |
448 | unsigned long ctrl; |
449 | ||
450 | ctrl = readl(versatile_ib2_ctrl); | |
451 | ctrl &= ~0x01; | |
452 | writel(ctrl, versatile_ib2_ctrl); | |
453 | } | |
454 | #endif | |
455 | } | |
456 | ||
457 | /* | |
458 | * Enable the relevant connector on the interface module. | |
459 | */ | |
460 | static void versatile_clcd_enable(struct clcd_fb *fb) | |
461 | { | |
9728c1b6 | 462 | struct fb_var_screeninfo *var = &fb->fb.var; |
2ad4f86b | 463 | void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; |
1da177e4 LT |
464 | u32 val; |
465 | ||
466 | val = readl(sys_clcd); | |
467 | val &= ~SYS_CLCD_MODE_MASK; | |
468 | ||
9728c1b6 | 469 | switch (var->green.length) { |
1da177e4 LT |
470 | case 5: |
471 | val |= SYS_CLCD_MODE_5551; | |
472 | break; | |
473 | case 6: | |
9728c1b6 RK |
474 | if (var->red.offset == 0) |
475 | val |= SYS_CLCD_MODE_565_RLSB; | |
476 | else | |
477 | val |= SYS_CLCD_MODE_565_BLSB; | |
1da177e4 LT |
478 | break; |
479 | case 8: | |
480 | val |= SYS_CLCD_MODE_888; | |
481 | break; | |
482 | } | |
483 | ||
484 | /* | |
485 | * Set the MUX | |
486 | */ | |
487 | writel(val, sys_clcd); | |
488 | ||
489 | /* | |
490 | * And now enable the PSUs | |
491 | */ | |
492 | val |= SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH; | |
493 | writel(val, sys_clcd); | |
494 | ||
495 | #ifdef CONFIG_MACH_VERSATILE_AB | |
496 | /* | |
497 | * If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on | |
498 | */ | |
3414ba8c | 499 | if (machine_is_versatile_ab() && is_sanyo_2_5_lcd) { |
2ad4f86b | 500 | void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL); |
1da177e4 LT |
501 | unsigned long ctrl; |
502 | ||
503 | ctrl = readl(versatile_ib2_ctrl); | |
504 | ctrl |= 0x01; | |
505 | writel(ctrl, versatile_ib2_ctrl); | |
506 | } | |
507 | #endif | |
508 | } | |
509 | ||
3414ba8c RK |
510 | /* |
511 | * Detect which LCD panel is connected, and return the appropriate | |
512 | * clcd_panel structure. Note: we do not have any information on | |
513 | * the required timings for the 8.4in panel, so we presently assume | |
514 | * VGA timings. | |
515 | */ | |
1da177e4 LT |
516 | static int versatile_clcd_setup(struct clcd_fb *fb) |
517 | { | |
3414ba8c RK |
518 | void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; |
519 | const char *panel_name; | |
520 | u32 val; | |
1da177e4 | 521 | |
3414ba8c | 522 | is_sanyo_2_5_lcd = false; |
1da177e4 | 523 | |
3414ba8c RK |
524 | val = readl(sys_clcd) & SYS_CLCD_ID_MASK; |
525 | if (val == SYS_CLCD_ID_SANYO_3_8) | |
526 | panel_name = "Sanyo TM38QV67A02A"; | |
527 | else if (val == SYS_CLCD_ID_SANYO_2_5) { | |
528 | panel_name = "Sanyo QVGA Portrait"; | |
529 | is_sanyo_2_5_lcd = true; | |
530 | } else if (val == SYS_CLCD_ID_EPSON_2_2) | |
531 | panel_name = "Epson L2F50113T00"; | |
532 | else if (val == SYS_CLCD_ID_VGA) | |
533 | panel_name = "VGA"; | |
534 | else { | |
535 | printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n", | |
536 | val); | |
537 | panel_name = "VGA"; | |
1da177e4 LT |
538 | } |
539 | ||
3414ba8c RK |
540 | fb->panel = versatile_clcd_get_panel(panel_name); |
541 | if (!fb->panel) | |
542 | return -EINVAL; | |
1da177e4 | 543 | |
3414ba8c | 544 | return versatile_clcd_setup_dma(fb, SZ_1M); |
1da177e4 LT |
545 | } |
546 | ||
9728c1b6 RK |
547 | static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs) |
548 | { | |
549 | clcdfb_decode(fb, regs); | |
550 | ||
551 | /* Always clear BGR for RGB565: we do the routing externally */ | |
552 | if (fb->fb.var.green.length == 6) | |
553 | regs->cntl &= ~CNTL_BGR; | |
554 | } | |
555 | ||
1da177e4 LT |
556 | static struct clcd_board clcd_plat_data = { |
557 | .name = "Versatile", | |
3414ba8c | 558 | .caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888, |
1da177e4 | 559 | .check = clcdfb_check, |
9728c1b6 | 560 | .decode = versatile_clcd_decode, |
1da177e4 LT |
561 | .disable = versatile_clcd_disable, |
562 | .enable = versatile_clcd_enable, | |
563 | .setup = versatile_clcd_setup, | |
3414ba8c RK |
564 | .mmap = versatile_clcd_mmap_dma, |
565 | .remove = versatile_clcd_remove_dma, | |
1da177e4 LT |
566 | }; |
567 | ||
bbeddc43 RK |
568 | static struct pl061_platform_data gpio0_plat_data = { |
569 | .gpio_base = 0, | |
570 | .irq_base = IRQ_GPIO0_START, | |
571 | }; | |
572 | ||
573 | static struct pl061_platform_data gpio1_plat_data = { | |
574 | .gpio_base = 8, | |
575 | .irq_base = IRQ_GPIO1_START, | |
576 | }; | |
577 | ||
ef6f4b12 LW |
578 | static struct pl022_ssp_controller ssp0_plat_data = { |
579 | .bus_id = 0, | |
580 | .enable_dma = 0, | |
581 | .num_chipselect = 1, | |
582 | }; | |
583 | ||
0dada61a | 584 | #define AACI_IRQ { IRQ_AACI } |
1da177e4 | 585 | #define MMCI0_IRQ { IRQ_MMCI0A,IRQ_SIC_MMCI0B } |
0dada61a RK |
586 | #define KMI0_IRQ { IRQ_SIC_KMI0 } |
587 | #define KMI1_IRQ { IRQ_SIC_KMI1 } | |
1da177e4 LT |
588 | |
589 | /* | |
590 | * These devices are connected directly to the multi-layer AHB switch | |
591 | */ | |
0dada61a RK |
592 | #define SMC_IRQ { } |
593 | #define MPMC_IRQ { } | |
594 | #define CLCD_IRQ { IRQ_CLCDINT } | |
595 | #define DMAC_IRQ { IRQ_DMAINT } | |
1da177e4 LT |
596 | |
597 | /* | |
598 | * These devices are connected via the core APB bridge | |
599 | */ | |
0dada61a RK |
600 | #define SCTL_IRQ { } |
601 | #define WATCHDOG_IRQ { IRQ_WDOGINT } | |
602 | #define GPIO0_IRQ { IRQ_GPIOINT0 } | |
603 | #define GPIO1_IRQ { IRQ_GPIOINT1 } | |
604 | #define RTC_IRQ { IRQ_RTCINT } | |
1da177e4 LT |
605 | |
606 | /* | |
607 | * These devices are connected via the DMA APB bridge | |
608 | */ | |
0dada61a RK |
609 | #define SCI_IRQ { IRQ_SCIINT } |
610 | #define UART0_IRQ { IRQ_UARTINT0 } | |
611 | #define UART1_IRQ { IRQ_UARTINT1 } | |
612 | #define UART2_IRQ { IRQ_UARTINT2 } | |
613 | #define SSP_IRQ { IRQ_SSPINT } | |
1da177e4 LT |
614 | |
615 | /* FPGA Primecells */ | |
8f5088b6 RK |
616 | APB_DEVICE(aaci, "fpga:04", AACI, NULL); |
617 | APB_DEVICE(mmc0, "fpga:05", MMCI0, &mmc0_plat_data); | |
618 | APB_DEVICE(kmi0, "fpga:06", KMI0, NULL); | |
619 | APB_DEVICE(kmi1, "fpga:07", KMI1, NULL); | |
1da177e4 LT |
620 | |
621 | /* DevChip Primecells */ | |
8f5088b6 RK |
622 | AHB_DEVICE(smc, "dev:00", SMC, NULL); |
623 | AHB_DEVICE(mpmc, "dev:10", MPMC, NULL); | |
624 | AHB_DEVICE(clcd, "dev:20", CLCD, &clcd_plat_data); | |
625 | AHB_DEVICE(dmac, "dev:30", DMAC, NULL); | |
626 | APB_DEVICE(sctl, "dev:e0", SCTL, NULL); | |
627 | APB_DEVICE(wdog, "dev:e1", WATCHDOG, NULL); | |
628 | APB_DEVICE(gpio0, "dev:e4", GPIO0, &gpio0_plat_data); | |
629 | APB_DEVICE(gpio1, "dev:e5", GPIO1, &gpio1_plat_data); | |
630 | APB_DEVICE(rtc, "dev:e8", RTC, NULL); | |
631 | APB_DEVICE(sci0, "dev:f0", SCI, NULL); | |
632 | APB_DEVICE(uart0, "dev:f1", UART0, NULL); | |
633 | APB_DEVICE(uart1, "dev:f2", UART1, NULL); | |
634 | APB_DEVICE(uart2, "dev:f3", UART2, NULL); | |
635 | APB_DEVICE(ssp0, "dev:f4", SSP, &ssp0_plat_data); | |
1da177e4 LT |
636 | |
637 | static struct amba_device *amba_devs[] __initdata = { | |
638 | &dmac_device, | |
639 | &uart0_device, | |
640 | &uart1_device, | |
641 | &uart2_device, | |
642 | &smc_device, | |
643 | &mpmc_device, | |
644 | &clcd_device, | |
645 | &sctl_device, | |
646 | &wdog_device, | |
647 | &gpio0_device, | |
648 | &gpio1_device, | |
649 | &rtc_device, | |
650 | &sci0_device, | |
651 | &ssp0_device, | |
652 | &aaci_device, | |
653 | &mmc0_device, | |
654 | &kmi0_device, | |
655 | &kmi1_device, | |
656 | }; | |
657 | ||
3ba7222a GL |
658 | #ifdef CONFIG_OF |
659 | /* | |
660 | * Lookup table for attaching a specific name and platform_data pointer to | |
661 | * devices as they get created by of_platform_populate(). Ideally this table | |
662 | * would not exist, but the current clock implementation depends on some devices | |
663 | * having a specific name. | |
664 | */ | |
665 | struct of_dev_auxdata versatile_auxdata_lookup[] __initdata = { | |
d12379ac | 666 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI0_BASE, "fpga:05", &mmc0_plat_data), |
3ba7222a GL |
667 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI0_BASE, "fpga:06", NULL), |
668 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI1_BASE, "fpga:07", NULL), | |
669 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART3_BASE, "fpga:09", NULL), | |
d12379ac | 670 | /* FIXME: this is buggy, the platform data is needed for this MMC instance too */ |
3ba7222a GL |
671 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI1_BASE, "fpga:0b", NULL), |
672 | ||
673 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_CLCD_BASE, "dev:20", &clcd_plat_data), | |
674 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART0_BASE, "dev:f1", NULL), | |
675 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART1_BASE, "dev:f2", NULL), | |
676 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART2_BASE, "dev:f3", NULL), | |
d12379ac | 677 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_SSP_BASE, "dev:f4", &ssp0_plat_data), |
3ba7222a GL |
678 | |
679 | #if 0 | |
680 | /* | |
681 | * These entries are unnecessary because no clocks referencing | |
682 | * them. I've left them in for now as place holders in case | |
683 | * any of them need to be added back, but they should be | |
684 | * removed before actually committing this patch. --gcl | |
685 | */ | |
686 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_AACI_BASE, "fpga:04", NULL), | |
687 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI1_BASE, "fpga:0a", NULL), | |
688 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_SMC_BASE, "dev:00", NULL), | |
689 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_MPMC_BASE, "dev:10", NULL), | |
690 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_DMAC_BASE, "dev:30", NULL), | |
691 | ||
692 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCTL_BASE, "dev:e0", NULL), | |
693 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_WATCHDOG_BASE, "dev:e1", NULL), | |
694 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO0_BASE, "dev:e4", NULL), | |
695 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO1_BASE, "dev:e5", NULL), | |
696 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO2_BASE, "dev:e6", NULL), | |
697 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO3_BASE, "dev:e7", NULL), | |
698 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_RTC_BASE, "dev:e8", NULL), | |
699 | OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI_BASE, "dev:f0", NULL), | |
700 | #endif | |
701 | {} | |
702 | }; | |
703 | #endif | |
704 | ||
1da177e4 | 705 | #ifdef CONFIG_LEDS |
2ad4f86b | 706 | #define VA_LEDS_BASE (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LED_OFFSET) |
1da177e4 LT |
707 | |
708 | static void versatile_leds_event(led_event_t ledevt) | |
709 | { | |
710 | unsigned long flags; | |
711 | u32 val; | |
712 | ||
713 | local_irq_save(flags); | |
714 | val = readl(VA_LEDS_BASE); | |
715 | ||
716 | switch (ledevt) { | |
717 | case led_idle_start: | |
718 | val = val & ~VERSATILE_SYS_LED0; | |
719 | break; | |
720 | ||
721 | case led_idle_end: | |
722 | val = val | VERSATILE_SYS_LED0; | |
723 | break; | |
724 | ||
725 | case led_timer: | |
726 | val = val ^ VERSATILE_SYS_LED1; | |
727 | break; | |
728 | ||
729 | case led_halted: | |
730 | val = 0; | |
731 | break; | |
732 | ||
733 | default: | |
734 | break; | |
735 | } | |
736 | ||
737 | writel(val, VA_LEDS_BASE); | |
738 | local_irq_restore(flags); | |
739 | } | |
740 | #endif /* CONFIG_LEDS */ | |
741 | ||
b56a7c6b RK |
742 | void versatile_restart(char mode, const char *cmd) |
743 | { | |
744 | void __iomem *sys = __io_address(VERSATILE_SYS_BASE); | |
745 | u32 val; | |
746 | ||
747 | val = __raw_readl(sys + VERSATILE_SYS_RESETCTL_OFFSET); | |
748 | val |= 0x105; | |
749 | ||
750 | __raw_writel(0xa05f, sys + VERSATILE_SYS_LOCK_OFFSET); | |
751 | __raw_writel(val, sys + VERSATILE_SYS_RESETCTL_OFFSET); | |
752 | __raw_writel(0, sys + VERSATILE_SYS_LOCK_OFFSET); | |
753 | } | |
754 | ||
ad3bb19c RK |
755 | /* Early initializations */ |
756 | void __init versatile_init_early(void) | |
1da177e4 | 757 | { |
ad3bb19c | 758 | void __iomem *sys = __io_address(VERSATILE_SYS_BASE); |
d1914c7e | 759 | |
ad3bb19c | 760 | osc4_clk.vcoreg = sys + VERSATILE_SYS_OSCCLCD_OFFSET; |
0a0300dc | 761 | clkdev_add_table(lookups, ARRAY_SIZE(lookups)); |
1da177e4 | 762 | |
ad3bb19c RK |
763 | versatile_sched_clock_init(sys + VERSATILE_SYS_24MHz_OFFSET, 24000000); |
764 | } | |
765 | ||
766 | void __init versatile_init(void) | |
767 | { | |
768 | int i; | |
769 | ||
1da177e4 | 770 | platform_device_register(&versatile_flash_device); |
6b65cd74 | 771 | platform_device_register(&versatile_i2c_device); |
1da177e4 | 772 | platform_device_register(&smc91x_device); |
d161edfb | 773 | platform_device_register(&char_lcd_device); |
1da177e4 LT |
774 | |
775 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
776 | struct amba_device *d = amba_devs[i]; | |
777 | amba_device_register(d, &iomem_resource); | |
778 | } | |
779 | ||
780 | #ifdef CONFIG_LEDS | |
781 | leds_event = versatile_leds_event; | |
782 | #endif | |
783 | } | |
784 | ||
785 | /* | |
786 | * Where is the timer (VA)? | |
787 | */ | |
2ad4f86b AV |
788 | #define TIMER0_VA_BASE __io_address(VERSATILE_TIMER0_1_BASE) |
789 | #define TIMER1_VA_BASE (__io_address(VERSATILE_TIMER0_1_BASE) + 0x20) | |
790 | #define TIMER2_VA_BASE __io_address(VERSATILE_TIMER2_3_BASE) | |
791 | #define TIMER3_VA_BASE (__io_address(VERSATILE_TIMER2_3_BASE) + 0x20) | |
b49c87c2 | 792 | |
1da177e4 LT |
793 | /* |
794 | * Set up timer interrupt, and return the current time in seconds. | |
795 | */ | |
796 | static void __init versatile_timer_init(void) | |
797 | { | |
b720f732 | 798 | u32 val; |
1da177e4 LT |
799 | |
800 | /* | |
801 | * set clock frequency: | |
802 | * VERSATILE_REFCLK is 32KHz | |
803 | * VERSATILE_TIMCLK is 1MHz | |
804 | */ | |
2ad4f86b | 805 | val = readl(__io_address(VERSATILE_SCTL_BASE)); |
b720f732 RK |
806 | writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | |
807 | (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | | |
808 | (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | | |
809 | (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, | |
2ad4f86b | 810 | __io_address(VERSATILE_SCTL_BASE)); |
1da177e4 LT |
811 | |
812 | /* | |
813 | * Initialise to a known state (all timers off) | |
814 | */ | |
b720f732 RK |
815 | writel(0, TIMER0_VA_BASE + TIMER_CTRL); |
816 | writel(0, TIMER1_VA_BASE + TIMER_CTRL); | |
817 | writel(0, TIMER2_VA_BASE + TIMER_CTRL); | |
818 | writel(0, TIMER3_VA_BASE + TIMER_CTRL); | |
819 | ||
fb593cf3 | 820 | sp804_clocksource_init(TIMER3_VA_BASE, "timer3"); |
57cc4f7d | 821 | sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMERINT0_1, "timer0"); |
1da177e4 LT |
822 | } |
823 | ||
824 | struct sys_timer versatile_timer = { | |
825 | .init = versatile_timer_init, | |
1da177e4 | 826 | }; |
b49c87c2 | 827 |