1 // SPDX-License-Identifier: GPL-2.0-only
3  * linux/arch/arm/mach-sa1100/assabet.c
7  * This file contains all Assabet-specific tweaks.
13 #include <linux/gpio/gpio-reg.h>
14 #include <linux/gpio/machine.h>
17 #include <linux/platform_data/sa11x0-serial.h>
33 #include <asm/mach-types.h>
36 #include <asm/pgtable-hwdef.h>
41 #include <linux/platform_data/irda-sa11x0.h>
44 #include <linux/platform_data/mfd-mcp-sa11x0.h>
83 	assabet_bcr_gc->set_multiple(assabet_bcr_gc, &m, &v);  in ASSABET_BCR_frob()
93 	gc = gpio_reg_init(NULL, reg, -1, 32, "assabet", 0xff000000, def_val,  in assabet_init_gpio()
101 	return gc->base;  in assabet_init_gpio()
107  * causes the ADV7171 to consume around 100mA - more than half
108  * the LCD-blanked power.
111  * budget on the MAX846 Li-Ion charger, and if no Li-Ion battery
119 #define SCK GPIO_GPIO(18)  macro
124 	GPSR = SCK;  in adv7171_start()
133 	GPSR = SCK;  in adv7171_stop()
144 		GPCR = SCK;  in adv7171_send()
151 		GPSR = SCK;  in adv7171_send()
154 	GPCR = SCK;  in adv7171_send()
159 	GPSR = SCK;  in adv7171_send()
164 	GPCR = SCK | SDA;  in adv7171_send()
178 	GPCR = SDA | SCK | MOD; /* clear L3 mode to ensure UDA1341 doesn't respond */  in adv7171_write()
179 	GPDR = (GPDR | SCK | MOD) & ~SDA;  in adv7171_write()
191 	/* Restore GPIO state for L3 bus */  in adv7171_write()
192 	GPSR = gplr & (SDA | SCK | MOD);  in adv7171_write()
193 	GPCR = (~gplr) & (SDA | SCK | MOD);  in adv7171_write()
336 	.gpio_base	= -1,
449 	.dev_id = "sa11x0-pcmcia.1",
451 		GPIO_LOOKUP("gpio", 21, "ready", GPIO_ACTIVE_HIGH),
452 		GPIO_LOOKUP("gpio", 22, "detect", GPIO_ACTIVE_LOW),
453 		GPIO_LOOKUP("gpio", 24, "bvd2", GPIO_ACTIVE_HIGH),
454 		GPIO_LOOKUP("gpio", 25, "bvd1", GPIO_ACTIVE_HIGH),
456 		GPIO_LOOKUP("assabet", 7, "bus-enable", GPIO_ACTIVE_LOW),
462 	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
466 	.supply_name = "cf-power",
471 	.dev_id = "reg-fixed-voltage.0",
499 		.gpio = 0,
506 		.gpio = 1,
522 	.dev_id = "sa11x0-uart.1",
534 	.dev_id = "sa11x0-uart.3",
556 	 * excessive power drain.  --rmk  in assabet_init()
601 	platform_device_register_resndata(NULL, "gpio-keys", 0,  in assabet_init()
606 	gpio_led_register_device(-1, &assabet_leds_pdata);  in assabet_init()
626  * in the page table here in order to access GPIO registers.
642  * (taken from "Intel StrongARM SA-1110 Microprocessor Development Board
645  * This same scan is performed in arch/arm/boot/compressed/head-sa1100.S
657 	GPDR |= 0x3fc;			/* Configure GPIO 9:2 as outputs */  in get_assabet_scr()
658 	GPSR = 0x3fc;			/* Write 0xFF to GPIO 9:2 */  in get_assabet_scr()
659 	GPDR &= ~(0x3fc);		/* Configure GPIO 9:2 as inputs */  in get_assabet_scr()
660 	for(i = 100; i--; )		/* Read GPIO 9:2 */  in get_assabet_scr()
681 	if (port->mapbase == _Ser1UTCR0) {  in assabet_uart_pm()
759 	assabet_leds[0].gpio = assabet_gpio_base + 13;  in assabet_init_irq()
760 	assabet_leds[1].gpio = assabet_gpio_base + 14;  in assabet_init_irq()
763 MACHINE_START(ASSABET, "Intel-Assabet")