arm/mach-sa1100/assabet.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * linux/arch/arm/mach-sa1100/assabet.c
7  * This file contains all Assabet-specific tweaks.
14 #include <linux/gpio/gpio-reg.h>
18 #include <linux/platform_data/sa11x0-serial.h>
34 #include <asm/mach-types.h>
37 #include <asm/pgtable-hwdef.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()
105  * causes the ADV7171 to consume around 100mA - more than half
106  * the LCD-blanked power.
109  * budget on the MAX846 Li-Ion charger, and if no Li-Ion battery
116 #define SDA GPIO_GPIO(15)  macro
124 	GPSR = SDA;  in adv7171_start()
126 	GPCR = SDA;  in adv7171_start()
133 	GPSR = SDA;  in adv7171_stop()
145 			GPSR = SDA;  in adv7171_send()
147 			GPCR = SDA;  in adv7171_send()
154 	GPSR = SDA;  in adv7171_send()
156 	GPDR &= ~SDA;  in adv7171_send()
159 	if (GPLR & SDA)  in adv7171_send()
162 	GPCR = SCK | SDA;  in adv7171_send()
164 	GPDR |= SDA;  in adv7171_send()
176 	GPCR = SDA | SCK | MOD; /* clear L3 mode to ensure UDA1341 doesn't respond */  in adv7171_write()
177 	GPDR = (GPDR | SCK | MOD) & ~SDA;  in adv7171_write()
179 	if (!(GPLR & SDA))  in adv7171_write()
180 		printk(KERN_WARNING "Something dragging SDA down?\n");  in adv7171_write()
181 	GPDR |= SDA;  in adv7171_write()
190 	GPSR = gplr & (SDA | SCK | MOD);  in adv7171_write()
191 	GPCR = (~gplr) & (SDA | SCK | MOD);  in adv7171_write()
302 	.gpio_base	= -1,
415 	.dev_id = "sa11x0-pcmcia.1",
422 		GPIO_LOOKUP("assabet", 7, "bus-enable", GPIO_ACTIVE_LOW),
428 	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
432 	.supply_name = "cf-power",
437 	.dev_id = "reg-fixed-voltage.0",
445 	.dev_id = "leds-gpio",
495 	.dev_id = "sa11x0-uart.1",
507 	.dev_id = "sa11x0-uart.3",
529 	 * excessive power drain.  --rmk  in assabet_init()
535 	 * Also set GPIO27 as an output; this is used to clock UART3  in assabet_init()
574 	platform_device_register_resndata(NULL, "gpio-keys", 0,  in assabet_init()
580 	gpio_led_register_device(-1, &assabet_leds_pdata);  in assabet_init()
615  * (taken from "Intel StrongARM SA-1110 Microprocessor Development Board
618  * This same scan is performed in arch/arm/boot/compressed/head-sa1100.S
633 	for(i = 100; i--; )		/* Read GPIO 9:2 */  in get_assabet_scr()
654 	if (port->mapbase == _Ser1UTCR0) {  in assabet_uart_pm()
732 MACHINE_START(ASSABET, "Intel-Assabet")