1 // SPDX-License-Identifier: GPL-2.0
3  * linux/arch/arm/mach-footbridge/netwinder-hw.c
20 #include <asm/mach-types.h>
55 	outb(val >> 8, 0x371);  in wb977_ww()
85 		outb(new_gpio >> 8, GP2_IO_BASE);  in nw_gpio_modify_op()
110 	wb977_device_select(8);  in __gpio_modify_io()
134 	return inb(GP1_IO_BASE) | inb(GP2_IO_BASE) << 8;  in nw_gpio_read()
208 	 * KBC 8MHz  in wb977_init_keyboard()
219  * Initialise the Winbond W83977F Infra-Red device
237 	 * RX DMA - ISA DMA 0  in wb977_init_irda()
242 	 * TX DMA - Disable Tx DMA  in wb977_init_irda()
267 	current_gpio_io = -1;  in wb977_init_gpio()
268 	__gpio_modify_io(-1, GPIO_DONE | GPIO_WDTIMER);  in wb977_init_gpio()
295 	wb977_device_select(8);  in wb977_init_gpio()
304 	 *  - timer disable  in wb977_init_gpio()
309 	 *  - disable LED, no mouse nor keyboard IRQ  in wb977_init_gpio()
314 	 *  - timer counting, disable power LED, disable timeouot  in wb977_init_gpio()
327 	nw_gpio_modify_op(-1, GPIO_RED_LED | GPIO_FAN);  in wb977_init_gpio()
350 	 * the multi-IO chip.  in wb977_init()
372 	for (msk = 8; msk; msk >>= 1) {  in nw_cpld_modify()
390 	nw_cpld_modify(-1, CPLD_UNMUTE | CPLD_7111_DISABLE);  in cpld_init()
435 		for (j = 0; j < 8; j++) {  in rwa010_read_ident()
464 	/* disable the MPU-401 section of the chip */  in rwa010_global_init()
495 	WRITE_RWA(0x60, base >> 8);  in rwa010_waveartist_init()
517 	WRITE_RWA(0x60, sb_base >> 8);  in rwa010_soundblaster_init()
524 	dprintk(" 8-bit DMA: ");  in rwa010_soundblaster_init()
532 	WRITE_RWA(0x62, al_base >> 8);  in rwa010_soundblaster_init()
570 		i |= inb(0x22a) << 8;  in rwa010_soundblaster_reset()
631 	 * on the NetWinder - it will reset the settings  in fixup_netwinder()
655 		/* set GP16 for WD-TIMER output */  in netwinder_restart()
659 		/* set a RED LED and toggle WD_TIMER for rebooting */  in netwinder_restart()
673  * LED triggers are compiled in.
684  * The LED control in Netwinder is reversed:
685  *  - setting bit means turn off LED
686  *  - clearing bit means turn on LED
691 	struct netwinder_led *led = container_of(cdev,  in netwinder_led_set()  local
699 		reg &= ~led->mask;  in netwinder_led_set()
701 		reg |= led->mask;  in netwinder_led_set()
702 	nw_gpio_modify_op(led->mask, reg);  in netwinder_led_set()
708 	struct netwinder_led *led = container_of(cdev,  in netwinder_led_get()  local
717 	return (reg & led->mask) ? LED_OFF : LED_FULL;  in netwinder_led_get()
725 		return -ENODEV;  in netwinder_leds_init()
728 		struct netwinder_led *led;  in netwinder_leds_init()  local
730 		led = kzalloc(sizeof(*led), GFP_KERNEL);  in netwinder_leds_init()
731 		if (!led)  in netwinder_leds_init()
734 		led->cdev.name = netwinder_leds[i].name;  in netwinder_leds_init()
735 		led->cdev.brightness_set = netwinder_led_set;  in netwinder_leds_init()
736 		led->cdev.brightness_get = netwinder_led_get;  in netwinder_leds_init()
737 		led->cdev.default_trigger = netwinder_leds[i].trigger;  in netwinder_leds_init()
740 			led->mask = GPIO_GREEN_LED;  in netwinder_leds_init()
742 			led->mask = GPIO_RED_LED;  in netwinder_leds_init()
744 		if (led_classdev_register(NULL, &led->cdev) < 0) {  in netwinder_leds_init()
745 			kfree(led);  in netwinder_leds_init()
760 MACHINE_START(NETWINDER, "Rebel-NetWinder")