2 * Support for the Arcom ZEUS.
4 * Copyright (C) 2006 Arcom Control Systems Ltd.
6 * Loosely based on Arcom's 2.6.16.28.
7 * Maintained by Marc Zyngier <maz@misterjones.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/cpufreq.h>
15 #include <linux/interrupt.h>
16 #include <linux/leds.h>
17 #include <linux/irq.h>
19 #include <linux/gpio.h>
20 #include <linux/gpio/machine.h>
21 #include <linux/serial_8250.h>
22 #include <linux/dm9000.h>
23 #include <linux/mmc/host.h>
24 #include <linux/spi/spi.h>
25 #include <linux/spi/pxa2xx_spi.h>
26 #include <linux/mtd/mtd.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/i2c.h>
30 #include <linux/platform_data/i2c-pxa.h>
31 #include <linux/platform_data/pca953x.h>
32 #include <linux/apm-emulation.h>
33 #include <linux/can/platform/mcp251x.h>
34 #include <linux/regulator/fixed.h>
35 #include <linux/regulator/machine.h>
37 #include <asm/mach-types.h>
38 #include <asm/suspend.h>
39 #include <asm/system_info.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
45 #include <mach/regs-uart.h>
46 #include <linux/platform_data/usb-ohci-pxa27x.h>
47 #include <linux/platform_data/mmc-pxamci.h>
48 #include "pxa27x-udc.h"
50 #include <linux/platform_data/video-pxafb.h>
52 #include <mach/audio.h>
53 #include <linux/platform_data/pcmcia-pxa2xx_viper.h>
55 #include <mach/smemc.h>
63 static unsigned long zeus_irq_enabled_mask;
64 static const int zeus_isa_irqs[] = { 3, 4, 5, 6, 7, 10, 11, 12, };
65 static const int zeus_isa_irq_map[] = {
66 0, /* ISA irq #0, invalid */
67 0, /* ISA irq #1, invalid */
68 0, /* ISA irq #2, invalid */
69 1 << 0, /* ISA irq #3 */
70 1 << 1, /* ISA irq #4 */
71 1 << 2, /* ISA irq #5 */
72 1 << 3, /* ISA irq #6 */
73 1 << 4, /* ISA irq #7 */
74 0, /* ISA irq #8, invalid */
75 0, /* ISA irq #9, invalid */
76 1 << 5, /* ISA irq #10 */
77 1 << 6, /* ISA irq #11 */
78 1 << 7, /* ISA irq #12 */
81 static inline int zeus_irq_to_bitmask(unsigned int irq)
83 return zeus_isa_irq_map[irq - PXA_ISA_IRQ(0)];
86 static inline int zeus_bit_to_irq(int bit)
88 return zeus_isa_irqs[bit] + PXA_ISA_IRQ(0);
91 static void zeus_ack_irq(struct irq_data *d)
93 __raw_writew(zeus_irq_to_bitmask(d->irq), ZEUS_CPLD_ISA_IRQ);
96 static void zeus_mask_irq(struct irq_data *d)
98 zeus_irq_enabled_mask &= ~(zeus_irq_to_bitmask(d->irq));
101 static void zeus_unmask_irq(struct irq_data *d)
103 zeus_irq_enabled_mask |= zeus_irq_to_bitmask(d->irq);
106 static inline unsigned long zeus_irq_pending(void)
108 return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask;
111 static void zeus_irq_handler(struct irq_desc *desc)
114 unsigned long pending;
116 pending = zeus_irq_pending();
118 /* we're in a chained irq handler,
119 * so ack the interrupt by hand */
120 desc->irq_data.chip->irq_ack(&desc->irq_data);
122 if (likely(pending)) {
123 irq = zeus_bit_to_irq(__ffs(pending));
124 generic_handle_irq(irq);
126 pending = zeus_irq_pending();
130 static struct irq_chip zeus_irq_chip = {
132 .irq_ack = zeus_ack_irq,
133 .irq_mask = zeus_mask_irq,
134 .irq_unmask = zeus_unmask_irq,
137 static void __init zeus_init_irq(void)
144 /* Peripheral IRQs. It would be nice to move those inside driver
145 configuration, but it is not supported at the moment. */
146 irq_set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING);
147 irq_set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING);
148 irq_set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING);
149 irq_set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO),
150 IRQ_TYPE_EDGE_FALLING);
151 irq_set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO), IRQ_TYPE_EDGE_FALLING);
154 for (level = 0; level < ARRAY_SIZE(zeus_isa_irqs); level++) {
155 isa_irq = zeus_bit_to_irq(level);
156 irq_set_chip_and_handler(isa_irq, &zeus_irq_chip,
158 irq_clear_status_flags(isa_irq, IRQ_NOREQUEST | IRQ_NOPROBE);
161 irq_set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING);
162 irq_set_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler);
171 static struct resource zeus_mtd_resources[] = {
172 [0] = { /* NOR Flash (up to 64MB) */
173 .start = ZEUS_FLASH_PHYS,
174 .end = ZEUS_FLASH_PHYS + SZ_64M - 1,
175 .flags = IORESOURCE_MEM,
178 .start = ZEUS_SRAM_PHYS,
179 .end = ZEUS_SRAM_PHYS + SZ_512K - 1,
180 .flags = IORESOURCE_MEM,
184 static struct physmap_flash_data zeus_flash_data[] = {
192 static struct platform_device zeus_mtd_devices[] = {
194 .name = "physmap-flash",
197 .platform_data = &zeus_flash_data[0],
199 .resource = &zeus_mtd_resources[0],
205 static struct resource zeus_serial_resources[] = {
209 .flags = IORESOURCE_MEM,
214 .flags = IORESOURCE_MEM,
219 .flags = IORESOURCE_MEM,
224 .flags = IORESOURCE_MEM,
229 .flags = IORESOURCE_MEM,
234 .flags = IORESOURCE_MEM,
238 static struct plat_serial8250_port serial_platform_data[] = {
240 /* FIXME: Shared IRQs on COM1-COM4 will not work properly on v1i1 hardware. */
242 .mapbase = 0x10000000,
243 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTA_GPIO),
244 .irqflags = IRQF_TRIGGER_RISING,
247 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
251 .mapbase = 0x10800000,
252 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTB_GPIO),
253 .irqflags = IRQF_TRIGGER_RISING,
256 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
260 .mapbase = 0x11000000,
261 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTC_GPIO),
262 .irqflags = IRQF_TRIGGER_RISING,
265 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
269 .mapbase = 0x11800000,
270 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTD_GPIO),
271 .irqflags = IRQF_TRIGGER_RISING,
274 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
279 .membase = (void *)&FFUART,
280 .mapbase = __PREG(FFUART),
282 .uartclk = 921600 * 16,
284 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
288 .membase = (void *)&BTUART,
289 .mapbase = __PREG(BTUART),
291 .uartclk = 921600 * 16,
293 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
297 .membase = (void *)&STUART,
298 .mapbase = __PREG(STUART),
300 .uartclk = 921600 * 16,
302 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
308 static struct platform_device zeus_serial_device = {
309 .name = "serial8250",
310 .id = PLAT8250_DEV_PLATFORM,
312 .platform_data = serial_platform_data,
314 .num_resources = ARRAY_SIZE(zeus_serial_resources),
315 .resource = zeus_serial_resources,
319 static struct resource zeus_dm9k0_resource[] = {
321 .start = ZEUS_ETH0_PHYS,
322 .end = ZEUS_ETH0_PHYS + 1,
323 .flags = IORESOURCE_MEM
326 .start = ZEUS_ETH0_PHYS + 2,
327 .end = ZEUS_ETH0_PHYS + 3,
328 .flags = IORESOURCE_MEM
331 .start = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO),
332 .end = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO),
333 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
337 static struct resource zeus_dm9k1_resource[] = {
339 .start = ZEUS_ETH1_PHYS,
340 .end = ZEUS_ETH1_PHYS + 1,
341 .flags = IORESOURCE_MEM
344 .start = ZEUS_ETH1_PHYS + 2,
345 .end = ZEUS_ETH1_PHYS + 3,
346 .flags = IORESOURCE_MEM,
349 .start = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO),
350 .end = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO),
351 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
355 static struct dm9000_plat_data zeus_dm9k_platdata = {
356 .flags = DM9000_PLATF_16BITONLY,
359 static struct platform_device zeus_dm9k0_device = {
362 .num_resources = ARRAY_SIZE(zeus_dm9k0_resource),
363 .resource = zeus_dm9k0_resource,
365 .platform_data = &zeus_dm9k_platdata,
369 static struct platform_device zeus_dm9k1_device = {
372 .num_resources = ARRAY_SIZE(zeus_dm9k1_resource),
373 .resource = zeus_dm9k1_resource,
375 .platform_data = &zeus_dm9k_platdata,
380 static struct resource zeus_sram_resource = {
381 .start = ZEUS_SRAM_PHYS,
382 .end = ZEUS_SRAM_PHYS + ZEUS_SRAM_SIZE * 2 - 1,
383 .flags = IORESOURCE_MEM,
386 static struct platform_device zeus_sram_device = {
387 .name = "pxa2xx-8bit-sram",
390 .resource = &zeus_sram_resource,
393 /* SPI interface on SSP3 */
394 static struct pxa2xx_spi_master pxa2xx_spi_ssp3_master_info = {
400 static struct regulator_consumer_supply can_regulator_consumer =
401 REGULATOR_SUPPLY("vdd", "spi3.0");
403 static struct regulator_init_data can_regulator_init_data = {
405 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
407 .consumer_supplies = &can_regulator_consumer,
408 .num_consumer_supplies = 1,
411 static struct fixed_voltage_config can_regulator_pdata = {
412 .supply_name = "CAN_SHDN",
413 .microvolts = 3300000,
414 .init_data = &can_regulator_init_data,
417 static struct platform_device can_regulator_device = {
418 .name = "reg-fixed-voltage",
421 .platform_data = &can_regulator_pdata,
425 static struct gpiod_lookup_table can_regulator_gpiod_table = {
426 .dev_id = "reg-fixed-voltage.0",
428 GPIO_LOOKUP("gpio-pxa", ZEUS_CAN_SHDN_GPIO,
429 NULL, GPIO_ACTIVE_HIGH),
434 static struct mcp251x_platform_data zeus_mcp2515_pdata = {
435 .oscillator_frequency = 16*1000*1000,
438 static struct spi_board_info zeus_spi_board_info[] = {
440 .modalias = "mcp2515",
441 .platform_data = &zeus_mcp2515_pdata,
442 .irq = PXA_GPIO_TO_IRQ(ZEUS_CAN_GPIO),
443 .max_speed_hz = 1*1000*1000,
451 static struct gpio_led zeus_leds[] = {
453 .name = "zeus:yellow:1",
454 .default_trigger = "heartbeat",
455 .gpio = ZEUS_EXT0_GPIO(3),
459 .name = "zeus:yellow:2",
460 .default_trigger = "default-on",
461 .gpio = ZEUS_EXT0_GPIO(4),
465 .name = "zeus:yellow:3",
466 .default_trigger = "default-on",
467 .gpio = ZEUS_EXT0_GPIO(5),
472 static struct gpio_led_platform_data zeus_leds_info = {
474 .num_leds = ARRAY_SIZE(zeus_leds),
477 static struct platform_device zeus_leds_device = {
481 .platform_data = &zeus_leds_info,
485 static void zeus_cf_reset(int state)
487 u16 cpld_state = __raw_readw(ZEUS_CPLD_CONTROL);
490 cpld_state |= ZEUS_CPLD_CONTROL_CF_RST;
492 cpld_state &= ~ZEUS_CPLD_CONTROL_CF_RST;
494 __raw_writew(cpld_state, ZEUS_CPLD_CONTROL);
497 static struct arcom_pcmcia_pdata zeus_pcmcia_info = {
498 .cd_gpio = ZEUS_CF_CD_GPIO,
499 .rdy_gpio = ZEUS_CF_RDY_GPIO,
500 .pwr_gpio = ZEUS_CF_PWEN_GPIO,
501 .reset = zeus_cf_reset,
504 static struct platform_device zeus_pcmcia_device = {
505 .name = "zeus-pcmcia",
508 .platform_data = &zeus_pcmcia_info,
512 static struct resource zeus_max6369_resource = {
513 .start = ZEUS_CPLD_EXTWDOG_PHYS,
514 .end = ZEUS_CPLD_EXTWDOG_PHYS,
515 .flags = IORESOURCE_MEM,
518 struct platform_device zeus_max6369_device = {
519 .name = "max6369_wdt",
521 .resource = &zeus_max6369_resource,
526 static pxa2xx_audio_ops_t zeus_ac97_info = {
535 static struct regulator_consumer_supply zeus_ohci_regulator_supplies[] = {
536 REGULATOR_SUPPLY("vbus2", "pxa27x-ohci"),
539 static struct regulator_init_data zeus_ohci_regulator_data = {
541 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
543 .num_consumer_supplies = ARRAY_SIZE(zeus_ohci_regulator_supplies),
544 .consumer_supplies = zeus_ohci_regulator_supplies,
547 static struct fixed_voltage_config zeus_ohci_regulator_config = {
548 .supply_name = "vbus2",
549 .microvolts = 5000000, /* 5.0V */
552 .init_data = &zeus_ohci_regulator_data,
555 static struct platform_device zeus_ohci_regulator_device = {
556 .name = "reg-fixed-voltage",
559 .platform_data = &zeus_ohci_regulator_config,
563 static struct gpiod_lookup_table zeus_ohci_regulator_gpiod_table = {
564 .dev_id = "reg-fixed-voltage.0",
566 GPIO_LOOKUP("gpio-pxa", ZEUS_USB2_PWREN_GPIO,
567 NULL, GPIO_ACTIVE_HIGH),
572 static struct pxaohci_platform_data zeus_ohci_platform_data = {
573 .port_mode = PMM_NPS_MODE,
574 /* Clear Power Control Polarity Low and set Power Sense
575 * Polarity Low. Supply power to USB ports. */
576 .flags = ENABLE_PORT_ALL | POWER_SENSE_LOW,
579 static void __init zeus_register_ohci(void)
581 /* Port 2 is shared between host and client interface. */
582 UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
584 pxa_set_ohci_info(&zeus_ohci_platform_data);
591 static void zeus_lcd_power(int on, struct fb_var_screeninfo *si)
593 gpio_set_value(ZEUS_LCD_EN_GPIO, on);
596 static void zeus_backlight_power(int on)
598 gpio_set_value(ZEUS_BKLEN_GPIO, on);
601 static int zeus_setup_fb_gpios(void)
605 if ((err = gpio_request(ZEUS_LCD_EN_GPIO, "LCD_EN")))
608 if ((err = gpio_direction_output(ZEUS_LCD_EN_GPIO, 0)))
611 if ((err = gpio_request(ZEUS_BKLEN_GPIO, "BKLEN")))
614 if ((err = gpio_direction_output(ZEUS_BKLEN_GPIO, 0)))
620 gpio_free(ZEUS_BKLEN_GPIO);
622 gpio_free(ZEUS_LCD_EN_GPIO);
627 static struct pxafb_mode_info zeus_fb_mode_info[] = {
648 static struct pxafb_mach_info zeus_fb_info = {
649 .modes = zeus_fb_mode_info,
651 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
652 .pxafb_lcd_power = zeus_lcd_power,
653 .pxafb_backlight_power = zeus_backlight_power,
659 * The card detect interrupt isn't debounced so we delay it by 250ms
660 * to give the card a chance to fully insert/eject.
663 static struct pxamci_platform_data zeus_mci_platform_data = {
664 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
665 .detect_delay_ms = 250,
666 .gpio_card_ro_invert = 1,
669 static struct gpiod_lookup_table zeus_mci_gpio_table = {
670 .dev_id = "pxa2xx-mci.0",
672 GPIO_LOOKUP("gpio-pxa", ZEUS_MMC_CD_GPIO,
673 "cd", GPIO_ACTIVE_LOW),
674 GPIO_LOOKUP("gpio-pxa", ZEUS_MMC_WP_GPIO,
675 "wp", GPIO_ACTIVE_HIGH),
681 * USB Device Controller
683 static void zeus_udc_command(int cmd)
686 case PXA2XX_UDC_CMD_DISCONNECT:
687 pr_info("zeus: disconnecting USB client\n");
688 UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
691 case PXA2XX_UDC_CMD_CONNECT:
692 pr_info("zeus: connecting USB client\n");
693 UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
698 static struct pxa2xx_udc_mach_info zeus_udc_info = {
699 .udc_command = zeus_udc_command,
702 static struct platform_device *zeus_devices[] __initdata = {
704 &zeus_mtd_devices[0],
710 &zeus_max6369_device,
711 &can_regulator_device,
712 &zeus_ohci_regulator_device,
716 static void zeus_power_off(void)
719 cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend);
722 #define zeus_power_off NULL
725 #ifdef CONFIG_APM_EMULATION
726 static void zeus_get_power_status(struct apm_power_info *info)
728 /* Power supply is always present */
729 info->ac_line_status = APM_AC_ONLINE;
730 info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT;
731 info->battery_flag = APM_BATTERY_FLAG_NOT_PRESENT;
734 static inline void zeus_setup_apm(void)
736 apm_get_power_status = zeus_get_power_status;
739 static inline void zeus_setup_apm(void)
744 static int zeus_get_pcb_info(struct i2c_client *client, unsigned gpio,
745 unsigned ngpio, void *context)
750 for (i = 0; i < 8; i++) {
751 int pcb_bit = gpio + i + 8;
753 if (gpio_request(pcb_bit, "pcb info")) {
754 dev_err(&client->dev, "Can't request pcb info %d\n", i);
758 if (gpio_direction_input(pcb_bit)) {
759 dev_err(&client->dev, "Can't read pcb info %d\n", i);
764 pcb_info |= !!gpio_get_value(pcb_bit) << i;
769 dev_info(&client->dev, "Zeus PCB version %d issue %d\n",
770 pcb_info >> 4, pcb_info & 0xf);
775 static struct pca953x_platform_data zeus_pca953x_pdata[] = {
776 [0] = { .gpio_base = ZEUS_EXT0_GPIO_BASE, },
778 .gpio_base = ZEUS_EXT1_GPIO_BASE,
779 .setup = zeus_get_pcb_info,
781 [2] = { .gpio_base = ZEUS_USER_GPIO_BASE, },
784 static struct i2c_board_info __initdata zeus_i2c_devices[] = {
786 I2C_BOARD_INFO("pca9535", 0x21),
787 .platform_data = &zeus_pca953x_pdata[0],
790 I2C_BOARD_INFO("pca9535", 0x22),
791 .platform_data = &zeus_pca953x_pdata[1],
794 I2C_BOARD_INFO("pca9535", 0x20),
795 .platform_data = &zeus_pca953x_pdata[2],
796 .irq = PXA_GPIO_TO_IRQ(ZEUS_EXTGPIO_GPIO),
798 { I2C_BOARD_INFO("lm75a", 0x48) },
799 { I2C_BOARD_INFO("24c01", 0x50) },
800 { I2C_BOARD_INFO("isl1208", 0x6f) },
803 static mfp_cfg_t zeus_pin_config[] __initdata = {
806 GPIO29_AC97_SDATA_IN_0,
807 GPIO30_AC97_SDATA_OUT,
850 GPIO36_GPIO, /* CF CD */
851 GPIO97_GPIO, /* CF PWREN */
852 GPIO99_GPIO, /* CF RDY */
856 * DM9k MSCx settings: SRAM, 16 bits
857 * 17 cycles delay first access
858 * 5 cycles delay next access
859 * 13 cycles recovery time
862 #define DM9K_MSC_VALUE 0xe4c9
864 static void __init zeus_init(void)
866 u16 dm9000_msc = DM9K_MSC_VALUE;
869 system_rev = __raw_readw(ZEUS_CPLD_VERSION);
870 pr_info("Zeus CPLD V%dI%d\n", (system_rev & 0xf0) >> 4, (system_rev & 0x0f));
872 /* Fix timings for dm9000s (CS1/CS2)*/
873 msc0 = (__raw_readl(MSC0) & 0x0000ffff) | (dm9000_msc << 16);
874 msc1 = (__raw_readl(MSC1) & 0xffff0000) | dm9000_msc;
875 __raw_writel(msc0, MSC0);
876 __raw_writel(msc1, MSC1);
878 pm_power_off = zeus_power_off;
881 pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config));
883 gpiod_add_lookup_table(&can_regulator_gpiod_table);
884 gpiod_add_lookup_table(&zeus_ohci_regulator_gpiod_table);
885 platform_add_devices(zeus_devices, ARRAY_SIZE(zeus_devices));
887 zeus_register_ohci();
889 if (zeus_setup_fb_gpios())
890 pr_err("Failed to setup fb gpios\n");
892 pxa_set_fb_info(NULL, &zeus_fb_info);
894 gpiod_add_lookup_table(&zeus_mci_gpio_table);
895 pxa_set_mci_info(&zeus_mci_platform_data);
896 pxa_set_udc_info(&zeus_udc_info);
897 pxa_set_ac97_info(&zeus_ac97_info);
898 pxa_set_i2c_info(NULL);
899 i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices));
900 pxa2xx_set_spi_info(3, &pxa2xx_spi_ssp3_master_info);
901 spi_register_board_info(zeus_spi_board_info, ARRAY_SIZE(zeus_spi_board_info));
903 regulator_has_full_constraints();
906 static struct map_desc zeus_io_desc[] __initdata = {
908 .virtual = (unsigned long)ZEUS_CPLD_VERSION,
909 .pfn = __phys_to_pfn(ZEUS_CPLD_VERSION_PHYS),
914 .virtual = (unsigned long)ZEUS_CPLD_ISA_IRQ,
915 .pfn = __phys_to_pfn(ZEUS_CPLD_ISA_IRQ_PHYS),
920 .virtual = (unsigned long)ZEUS_CPLD_CONTROL,
921 .pfn = __phys_to_pfn(ZEUS_CPLD_CONTROL_PHYS),
926 .virtual = (unsigned long)ZEUS_PC104IO,
927 .pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS),
928 .length = 0x00800000,
933 static void __init zeus_map_io(void)
937 iotable_init(zeus_io_desc, ARRAY_SIZE(zeus_io_desc));
939 /* Clear PSPR to ensure a full restart on wake-up. */
942 /* enable internal 32.768Khz oscillator (ignore OSCC_OOK) */
943 writel(readl(OSCC) | OSCC_OON, OSCC);
945 /* Some clock cycles later (from OSCC_ON), programme PCFR (OPDE...).
946 * float chip selects and PCMCIA */
947 PCFR = PCFR_OPDE | PCFR_DC_EN | PCFR_FS | PCFR_FP;
950 MACHINE_START(ARCOM_ZEUS, "Arcom/Eurotech ZEUS")
951 /* Maintainer: Marc Zyngier <maz@misterjones.org> */
952 .atag_offset = 0x100,
953 .map_io = zeus_map_io,
954 .nr_irqs = ZEUS_NR_IRQS,
955 .init_irq = zeus_init_irq,
956 .handle_irq = pxa27x_handle_irq,
957 .init_time = pxa_timer_init,
958 .init_machine = zeus_init,
959 .restart = pxa_restart,