arm64: dts: Revert "specify console via command line"
[linux/fpc-iii.git] / arch / arm / mach-sa1100 / assabet.c
blobd96a101e550487e79c7e801ff9602846dffacae4
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-sa1100/assabet.c
5 * Author: Nicolas Pitre
7 * This file contains all Assabet-specific tweaks.
8 */
9 #include <linux/init.h>
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/errno.h>
13 #include <linux/gpio/gpio-reg.h>
14 #include <linux/gpio/machine.h>
15 #include <linux/gpio_keys.h>
16 #include <linux/ioport.h>
17 #include <linux/platform_data/sa11x0-serial.h>
18 #include <linux/regulator/fixed.h>
19 #include <linux/regulator/machine.h>
20 #include <linux/serial_core.h>
21 #include <linux/platform_device.h>
22 #include <linux/mfd/ucb1x00.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/delay.h>
26 #include <linux/mm.h>
27 #include <linux/leds.h>
28 #include <linux/slab.h>
30 #include <video/sa1100fb.h>
32 #include <mach/hardware.h>
33 #include <asm/mach-types.h>
34 #include <asm/setup.h>
35 #include <asm/page.h>
36 #include <asm/pgtable-hwdef.h>
37 #include <asm/pgtable.h>
38 #include <asm/tlbflush.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/flash.h>
42 #include <linux/platform_data/irda-sa11x0.h>
43 #include <asm/mach/map.h>
44 #include <mach/assabet.h>
45 #include <linux/platform_data/mfd-mcp-sa11x0.h>
46 #include <mach/irqs.h>
48 #include "generic.h"
50 #define ASSABET_BCR_DB1110 \
51 (ASSABET_BCR_SPK_OFF | \
52 ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
53 ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
54 ASSABET_BCR_IRDA_MD0)
56 #define ASSABET_BCR_DB1111 \
57 (ASSABET_BCR_SPK_OFF | \
58 ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
59 ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
60 ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_STEREO_LB | \
61 ASSABET_BCR_IRDA_MD0 | ASSABET_BCR_CF_RST)
63 unsigned long SCR_value = ASSABET_SCR_INIT;
64 EXPORT_SYMBOL(SCR_value);
66 static struct gpio_chip *assabet_bcr_gc;
68 static const char *assabet_names[] = {
69 "cf_pwr", "cf_gfx_reset", "nsoft_reset", "irda_fsel",
70 "irda_md0", "irda_md1", "stereo_loopback", "ncf_bus_on",
71 "audio_pwr_on", "light_pwr_on", "lcd16data", "lcd_pwr_on",
72 "rs232_on", "nred_led", "ngreen_led", "vib_on",
73 "com_dtr", "com_rts", "radio_wake_mod", "i2c_enab",
74 "tvir_enab", "qmute", "radio_pwr_on", "spkr_off",
75 "rs232_valid", "com_dcd", "com_cts", "com_dsr",
76 "radio_cts", "radio_dsr", "radio_dcd", "radio_ri",
79 /* The old deprecated interface */
80 void ASSABET_BCR_frob(unsigned int mask, unsigned int val)
82 unsigned long m = mask, v = val;
84 assabet_bcr_gc->set_multiple(assabet_bcr_gc, &m, &v);
86 EXPORT_SYMBOL(ASSABET_BCR_frob);
88 static int __init assabet_init_gpio(void __iomem *reg, u32 def_val)
90 struct gpio_chip *gc;
92 writel_relaxed(def_val, reg);
94 gc = gpio_reg_init(NULL, reg, -1, 32, "assabet", 0xff000000, def_val,
95 assabet_names, NULL, NULL);
97 if (IS_ERR(gc))
98 return PTR_ERR(gc);
100 assabet_bcr_gc = gc;
102 return gc->base;
106 * The codec reset goes to three devices, so we need to release
107 * the rest when any one of these requests it. However, that
108 * causes the ADV7171 to consume around 100mA - more than half
109 * the LCD-blanked power.
111 * With the ADV7171, LCD and backlight enabled, we go over
112 * budget on the MAX846 Li-Ion charger, and if no Li-Ion battery
113 * is connected, the Assabet crashes.
115 #define RST_UCB1X00 (1 << 0)
116 #define RST_UDA1341 (1 << 1)
117 #define RST_ADV7171 (1 << 2)
119 #define SDA GPIO_GPIO(15)
120 #define SCK GPIO_GPIO(18)
121 #define MOD GPIO_GPIO(17)
123 static void adv7171_start(void)
125 GPSR = SCK;
126 udelay(1);
127 GPSR = SDA;
128 udelay(2);
129 GPCR = SDA;
132 static void adv7171_stop(void)
134 GPSR = SCK;
135 udelay(2);
136 GPSR = SDA;
137 udelay(1);
140 static void adv7171_send(unsigned byte)
142 unsigned i;
144 for (i = 0; i < 8; i++, byte <<= 1) {
145 GPCR = SCK;
146 udelay(1);
147 if (byte & 0x80)
148 GPSR = SDA;
149 else
150 GPCR = SDA;
151 udelay(1);
152 GPSR = SCK;
153 udelay(1);
155 GPCR = SCK;
156 udelay(1);
157 GPSR = SDA;
158 udelay(1);
159 GPDR &= ~SDA;
160 GPSR = SCK;
161 udelay(1);
162 if (GPLR & SDA)
163 printk(KERN_WARNING "No ACK from ADV7171\n");
164 udelay(1);
165 GPCR = SCK | SDA;
166 udelay(1);
167 GPDR |= SDA;
168 udelay(1);
171 static void adv7171_write(unsigned reg, unsigned val)
173 unsigned gpdr = GPDR;
174 unsigned gplr = GPLR;
176 ASSABET_BCR_frob(ASSABET_BCR_AUDIO_ON, ASSABET_BCR_AUDIO_ON);
177 udelay(100);
179 GPCR = SDA | SCK | MOD; /* clear L3 mode to ensure UDA1341 doesn't respond */
180 GPDR = (GPDR | SCK | MOD) & ~SDA;
181 udelay(10);
182 if (!(GPLR & SDA))
183 printk(KERN_WARNING "Something dragging SDA down?\n");
184 GPDR |= SDA;
186 adv7171_start();
187 adv7171_send(0x54);
188 adv7171_send(reg);
189 adv7171_send(val);
190 adv7171_stop();
192 /* Restore GPIO state for L3 bus */
193 GPSR = gplr & (SDA | SCK | MOD);
194 GPCR = (~gplr) & (SDA | SCK | MOD);
195 GPDR = gpdr;
198 static void adv7171_sleep(void)
200 /* Put the ADV7171 into sleep mode */
201 adv7171_write(0x04, 0x40);
204 static unsigned codec_nreset;
206 static void assabet_codec_reset(unsigned mask, int set)
208 unsigned long flags;
209 bool old;
211 local_irq_save(flags);
212 old = !codec_nreset;
213 if (set)
214 codec_nreset &= ~mask;
215 else
216 codec_nreset |= mask;
218 if (old != !codec_nreset) {
219 if (codec_nreset) {
220 ASSABET_BCR_set(ASSABET_BCR_NCODEC_RST);
221 adv7171_sleep();
222 } else {
223 ASSABET_BCR_clear(ASSABET_BCR_NCODEC_RST);
226 local_irq_restore(flags);
229 static void assabet_ucb1x00_reset(enum ucb1x00_reset state)
231 int set = state == UCB_RST_REMOVE || state == UCB_RST_SUSPEND ||
232 state == UCB_RST_PROBE_FAIL;
233 assabet_codec_reset(RST_UCB1X00, set);
236 void assabet_uda1341_reset(int set)
238 assabet_codec_reset(RST_UDA1341, set);
240 EXPORT_SYMBOL(assabet_uda1341_reset);
244 * Assabet flash support code.
247 #ifdef ASSABET_REV_4
249 * Phase 4 Assabet has two 28F160B3 flash parts in bank 0:
251 static struct mtd_partition assabet_partitions[] = {
253 .name = "bootloader",
254 .size = 0x00020000,
255 .offset = 0,
256 .mask_flags = MTD_WRITEABLE,
257 }, {
258 .name = "bootloader params",
259 .size = 0x00020000,
260 .offset = MTDPART_OFS_APPEND,
261 .mask_flags = MTD_WRITEABLE,
262 }, {
263 .name = "jffs",
264 .size = MTDPART_SIZ_FULL,
265 .offset = MTDPART_OFS_APPEND,
268 #else
270 * Phase 5 Assabet has two 28F128J3A flash parts in bank 0:
272 static struct mtd_partition assabet_partitions[] = {
274 .name = "bootloader",
275 .size = 0x00040000,
276 .offset = 0,
277 .mask_flags = MTD_WRITEABLE,
278 }, {
279 .name = "bootloader params",
280 .size = 0x00040000,
281 .offset = MTDPART_OFS_APPEND,
282 .mask_flags = MTD_WRITEABLE,
283 }, {
284 .name = "jffs",
285 .size = MTDPART_SIZ_FULL,
286 .offset = MTDPART_OFS_APPEND,
289 #endif
291 static struct flash_platform_data assabet_flash_data = {
292 .map_name = "cfi_probe",
293 .parts = assabet_partitions,
294 .nr_parts = ARRAY_SIZE(assabet_partitions),
297 static struct resource assabet_flash_resources[] = {
298 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
299 DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_32M),
304 * Assabet IrDA support code.
307 static int assabet_irda_set_power(struct device *dev, unsigned int state)
309 static unsigned int bcr_state[4] = {
310 ASSABET_BCR_IRDA_MD0,
311 ASSABET_BCR_IRDA_MD1|ASSABET_BCR_IRDA_MD0,
312 ASSABET_BCR_IRDA_MD1,
316 if (state < 4)
317 ASSABET_BCR_frob(ASSABET_BCR_IRDA_MD1 | ASSABET_BCR_IRDA_MD0,
318 bcr_state[state]);
319 return 0;
322 static void assabet_irda_set_speed(struct device *dev, unsigned int speed)
324 if (speed < 4000000)
325 ASSABET_BCR_clear(ASSABET_BCR_IRDA_FSEL);
326 else
327 ASSABET_BCR_set(ASSABET_BCR_IRDA_FSEL);
330 static struct irda_platform_data assabet_irda_data = {
331 .set_power = assabet_irda_set_power,
332 .set_speed = assabet_irda_set_speed,
335 static struct ucb1x00_plat_data assabet_ucb1x00_data = {
336 .reset = assabet_ucb1x00_reset,
337 .gpio_base = -1,
338 .can_wakeup = 1,
341 static struct mcp_plat_data assabet_mcp_data = {
342 .mccr0 = MCCR0_ADM,
343 .sclk_rate = 11981000,
344 .codec_pdata = &assabet_ucb1x00_data,
347 static void assabet_lcd_set_visual(u32 visual)
349 u_int is_true_color = visual == FB_VISUAL_TRUECOLOR;
351 if (machine_is_assabet()) {
352 #if 1 // phase 4 or newer Assabet's
353 if (is_true_color)
354 ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
355 else
356 ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
357 #else
358 // older Assabet's
359 if (is_true_color)
360 ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
361 else
362 ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
363 #endif
367 #ifndef ASSABET_PAL_VIDEO
368 static void assabet_lcd_backlight_power(int on)
370 if (on)
371 ASSABET_BCR_set(ASSABET_BCR_LIGHT_ON);
372 else
373 ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
377 * Turn on/off the backlight. When turning the backlight on, we wait
378 * 500us after turning it on so we don't cause the supplies to droop
379 * when we enable the LCD controller (and cause a hard reset.)
381 static void assabet_lcd_power(int on)
383 if (on) {
384 ASSABET_BCR_set(ASSABET_BCR_LCD_ON);
385 udelay(500);
386 } else
387 ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
391 * The assabet uses a sharp LQ039Q2DS54 LCD module. It is actually
392 * takes an RGB666 signal, but we provide it with an RGB565 signal
393 * instead (def_rgb_16).
395 static struct sa1100fb_mach_info lq039q2ds54_info = {
396 .pixclock = 171521, .bpp = 16,
397 .xres = 320, .yres = 240,
399 .hsync_len = 5, .vsync_len = 1,
400 .left_margin = 61, .upper_margin = 3,
401 .right_margin = 9, .lower_margin = 0,
403 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
405 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
406 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
408 .backlight_power = assabet_lcd_backlight_power,
409 .lcd_power = assabet_lcd_power,
410 .set_visual = assabet_lcd_set_visual,
412 #else
413 static void assabet_pal_backlight_power(int on)
415 ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
418 static void assabet_pal_power(int on)
420 ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
423 static struct sa1100fb_mach_info pal_info = {
424 .pixclock = 67797, .bpp = 16,
425 .xres = 640, .yres = 512,
427 .hsync_len = 64, .vsync_len = 6,
428 .left_margin = 125, .upper_margin = 70,
429 .right_margin = 115, .lower_margin = 36,
431 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
432 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(512),
434 .backlight_power = assabet_pal_backlight_power,
435 .lcd_power = assabet_pal_power,
436 .set_visual = assabet_lcd_set_visual,
438 #endif
440 #ifdef CONFIG_ASSABET_NEPONSET
441 static struct resource neponset_resources[] = {
442 DEFINE_RES_MEM(0x10000000, 0x08000000),
443 DEFINE_RES_MEM(0x18000000, 0x04000000),
444 DEFINE_RES_MEM(0x40000000, SZ_8K),
445 DEFINE_RES_IRQ(IRQ_GPIO25),
447 #endif
449 static struct gpiod_lookup_table assabet_cf_gpio_table = {
450 .dev_id = "sa11x0-pcmcia.1",
451 .table = {
452 GPIO_LOOKUP("gpio", 21, "ready", GPIO_ACTIVE_HIGH),
453 GPIO_LOOKUP("gpio", 22, "detect", GPIO_ACTIVE_LOW),
454 GPIO_LOOKUP("gpio", 24, "bvd2", GPIO_ACTIVE_HIGH),
455 GPIO_LOOKUP("gpio", 25, "bvd1", GPIO_ACTIVE_HIGH),
456 GPIO_LOOKUP("assabet", 1, "reset", GPIO_ACTIVE_HIGH),
457 GPIO_LOOKUP("assabet", 7, "bus-enable", GPIO_ACTIVE_LOW),
458 { },
462 static struct regulator_consumer_supply assabet_cf_vcc_consumers[] = {
463 REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
466 static struct fixed_voltage_config assabet_cf_vcc_pdata __initdata = {
467 .supply_name = "cf-power",
468 .microvolts = 3300000,
471 static struct gpiod_lookup_table assabet_cf_vcc_gpio_table = {
472 .dev_id = "reg-fixed-voltage.0",
473 .table = {
474 GPIO_LOOKUP("assabet", 0, NULL, GPIO_ACTIVE_HIGH),
475 { },
479 static struct gpio_led assabet_leds[] __initdata = {
481 .name = "assabet:red",
482 .default_trigger = "cpu0",
483 .active_low = 1,
484 .default_state = LEDS_GPIO_DEFSTATE_KEEP,
485 }, {
486 .name = "assabet:green",
487 .default_trigger = "heartbeat",
488 .active_low = 1,
489 .default_state = LEDS_GPIO_DEFSTATE_KEEP,
493 static const struct gpio_led_platform_data assabet_leds_pdata __initconst = {
494 .num_leds = ARRAY_SIZE(assabet_leds),
495 .leds = assabet_leds,
498 static struct gpio_keys_button assabet_keys_buttons[] = {
500 .gpio = 0,
501 .irq = IRQ_GPIO0,
502 .desc = "gpio0",
503 .wakeup = 1,
504 .can_disable = 1,
505 .debounce_interval = 5,
506 }, {
507 .gpio = 1,
508 .irq = IRQ_GPIO1,
509 .desc = "gpio1",
510 .wakeup = 1,
511 .can_disable = 1,
512 .debounce_interval = 5,
516 static const struct gpio_keys_platform_data assabet_keys_pdata = {
517 .buttons = assabet_keys_buttons,
518 .nbuttons = ARRAY_SIZE(assabet_keys_buttons),
519 .rep = 0,
522 static struct gpiod_lookup_table assabet_uart1_gpio_table = {
523 .dev_id = "sa11x0-uart.1",
524 .table = {
525 GPIO_LOOKUP("assabet", 16, "dtr", GPIO_ACTIVE_LOW),
526 GPIO_LOOKUP("assabet", 17, "rts", GPIO_ACTIVE_LOW),
527 GPIO_LOOKUP("assabet", 25, "dcd", GPIO_ACTIVE_LOW),
528 GPIO_LOOKUP("assabet", 26, "cts", GPIO_ACTIVE_LOW),
529 GPIO_LOOKUP("assabet", 27, "dsr", GPIO_ACTIVE_LOW),
530 { },
534 static struct gpiod_lookup_table assabet_uart3_gpio_table = {
535 .dev_id = "sa11x0-uart.3",
536 .table = {
537 GPIO_LOOKUP("assabet", 28, "cts", GPIO_ACTIVE_LOW),
538 GPIO_LOOKUP("assabet", 29, "dsr", GPIO_ACTIVE_LOW),
539 GPIO_LOOKUP("assabet", 30, "dcd", GPIO_ACTIVE_LOW),
540 GPIO_LOOKUP("assabet", 31, "rng", GPIO_ACTIVE_LOW),
541 { },
545 static void __init assabet_init(void)
548 * Ensure that the power supply is in "high power" mode.
550 GPSR = GPIO_GPIO16;
551 GPDR |= GPIO_GPIO16;
554 * Ensure that these pins are set as outputs and are driving
555 * logic 0. This ensures that we won't inadvertently toggle
556 * the WS latch in the CPLD, and we don't float causing
557 * excessive power drain. --rmk
559 GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
560 GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
563 * Also set GPIO27 as an output; this is used to clock UART3
564 * via the FPGA and as otherwise has no pullups or pulldowns,
565 * so stop it floating.
567 GPCR = GPIO_GPIO27;
568 GPDR |= GPIO_GPIO27;
571 * Set up registers for sleep mode.
573 PWER = PWER_GPIO0;
574 PGSR = 0;
575 PCFR = 0;
576 PSDR = 0;
577 PPDR |= PPC_TXD3 | PPC_TXD1;
578 PPSR |= PPC_TXD3 | PPC_TXD1;
580 sa11x0_ppc_configure_mcp();
582 if (machine_has_neponset()) {
583 #ifndef CONFIG_ASSABET_NEPONSET
584 printk( "Warning: Neponset detected but full support "
585 "hasn't been configured in the kernel\n" );
586 #else
587 platform_device_register_simple("neponset", 0,
588 neponset_resources, ARRAY_SIZE(neponset_resources));
589 #endif
590 } else {
591 gpiod_add_lookup_table(&assabet_uart1_gpio_table);
592 gpiod_add_lookup_table(&assabet_uart3_gpio_table);
593 gpiod_add_lookup_table(&assabet_cf_vcc_gpio_table);
595 sa11x0_register_fixed_regulator(0, &assabet_cf_vcc_pdata,
596 assabet_cf_vcc_consumers,
597 ARRAY_SIZE(assabet_cf_vcc_consumers),
598 true);
602 platform_device_register_resndata(NULL, "gpio-keys", 0,
603 NULL, 0,
604 &assabet_keys_pdata,
605 sizeof(assabet_keys_pdata));
607 gpio_led_register_device(-1, &assabet_leds_pdata);
609 #ifndef ASSABET_PAL_VIDEO
610 sa11x0_register_lcd(&lq039q2ds54_info);
611 #else
612 sa11x0_register_lcd(&pal_video);
613 #endif
614 sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
615 ARRAY_SIZE(assabet_flash_resources));
616 sa11x0_register_irda(&assabet_irda_data);
617 sa11x0_register_mcp(&assabet_mcp_data);
619 if (!machine_has_neponset())
620 sa11x0_register_pcmcia(1, &assabet_cf_gpio_table);
624 * On Assabet, we must probe for the Neponset board _before_
625 * paging_init() has occurred to actually determine the amount
626 * of RAM available. To do so, we map the appropriate IO section
627 * in the page table here in order to access GPIO registers.
629 static void __init map_sa1100_gpio_regs( void )
631 unsigned long phys = __PREG(GPLR) & PMD_MASK;
632 unsigned long virt = (unsigned long)io_p2v(phys);
633 int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO);
634 pmd_t *pmd;
636 pmd = pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt);
637 *pmd = __pmd(phys | prot);
638 flush_pmd_entry(pmd);
642 * Read System Configuration "Register"
643 * (taken from "Intel StrongARM SA-1110 Microprocessor Development Board
644 * User's Guide", section 4.4.1)
646 * This same scan is performed in arch/arm/boot/compressed/head-sa1100.S
647 * to set up the serial port for decompression status messages. We
648 * repeat it here because the kernel may not be loaded as a zImage, and
649 * also because it's a hassle to communicate the SCR value to the kernel
650 * from the decompressor.
652 * Note that IRQs are guaranteed to be disabled.
654 static void __init get_assabet_scr(void)
656 unsigned long uninitialized_var(scr), i;
658 GPDR |= 0x3fc; /* Configure GPIO 9:2 as outputs */
659 GPSR = 0x3fc; /* Write 0xFF to GPIO 9:2 */
660 GPDR &= ~(0x3fc); /* Configure GPIO 9:2 as inputs */
661 for(i = 100; i--; ) /* Read GPIO 9:2 */
662 scr = GPLR;
663 GPDR |= 0x3fc; /* restore correct pin direction */
664 scr &= 0x3fc; /* save as system configuration byte. */
665 SCR_value = scr;
668 static void __init
669 fixup_assabet(struct tag *tags, char **cmdline)
671 /* This must be done before any call to machine_has_neponset() */
672 map_sa1100_gpio_regs();
673 get_assabet_scr();
675 if (machine_has_neponset())
676 printk("Neponset expansion board detected\n");
680 static void assabet_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
682 if (port->mapbase == _Ser1UTCR0) {
683 if (state)
684 ASSABET_BCR_clear(ASSABET_BCR_RS232EN);
685 else
686 ASSABET_BCR_set(ASSABET_BCR_RS232EN);
690 static struct sa1100_port_fns assabet_port_fns __initdata = {
691 .pm = assabet_uart_pm,
694 static struct map_desc assabet_io_desc[] __initdata = {
695 { /* Board Control Register */
696 .virtual = 0xf1000000,
697 .pfn = __phys_to_pfn(0x12000000),
698 .length = 0x00100000,
699 .type = MT_DEVICE
700 }, { /* MQ200 */
701 .virtual = 0xf2800000,
702 .pfn = __phys_to_pfn(0x4b800000),
703 .length = 0x00800000,
704 .type = MT_DEVICE
708 static void __init assabet_map_io(void)
710 sa1100_map_io();
711 iotable_init(assabet_io_desc, ARRAY_SIZE(assabet_io_desc));
714 * Set SUS bit in SDCR0 so serial port 1 functions.
715 * Its called GPCLKR0 in my SA1110 manual.
717 Ser1SDCR0 |= SDCR0_SUS;
718 MSC1 = (MSC1 & ~0xffff) |
719 MSC_NonBrst | MSC_32BitStMem |
720 MSC_RdAcc(2) | MSC_WrAcc(2) | MSC_Rec(0);
722 if (!machine_has_neponset())
723 sa1100_register_uart_fns(&assabet_port_fns);
726 * When Neponset is attached, the first UART should be
727 * UART3. That's what Angel is doing and many documents
728 * are stating this.
730 * We do the Neponset mapping even if Neponset support
731 * isn't compiled in so the user will still get something on
732 * the expected physical serial port.
734 * We no longer do this; not all boot loaders support it,
735 * and UART3 appears to be somewhat unreliable with blob.
737 sa1100_register_uart(0, 1);
738 sa1100_register_uart(2, 3);
741 void __init assabet_init_irq(void)
743 unsigned int assabet_gpio_base;
744 u32 def_val;
746 sa1100_init_irq();
748 if (machine_has_neponset())
749 def_val = ASSABET_BCR_DB1111;
750 else
751 def_val = ASSABET_BCR_DB1110;
754 * Angel sets this, but other bootloaders may not.
756 * This must precede any driver calls to BCR_set() or BCR_clear().
758 assabet_gpio_base = assabet_init_gpio((void *)&ASSABET_BCR, def_val);
760 assabet_leds[0].gpio = assabet_gpio_base + 13;
761 assabet_leds[1].gpio = assabet_gpio_base + 14;
764 MACHINE_START(ASSABET, "Intel-Assabet")
765 .atag_offset = 0x100,
766 .fixup = fixup_assabet,
767 .map_io = assabet_map_io,
768 .nr_irqs = SA1100_NR_IRQS,
769 .init_irq = assabet_init_irq,
770 .init_time = sa1100_timer_init,
771 .init_machine = assabet_init,
772 .init_late = sa11x0_init_late,
773 #ifdef CONFIG_SA1111
774 .dma_zone_size = SZ_1M,
775 #endif
776 .restart = sa11x0_restart,
777 MACHINE_END