1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * arch/arm/mach-ep93xx/core.c
19 #include <linux/dma-mapping.h>
33 #include <linux/irqchip/arm-vic.h>
39 #include <linux/platform_data/video-ep93xx.h>
40 #include <linux/platform_data/keypad-ep93xx.h>
41 #include <linux/platform_data/spi-ep93xx.h>
44 #include "gpio-ep93xx.h"
122  * ep93xx_chip_revision() - returns the EP93xx chip revision
154 	.name		= "gpio-ep93xx",
155 	.id		= -1,
197 	.name		= "ep93xx-rtc",
198 	.id		= -1,
212 		ep93xx_ohci_host_clock = devm_clk_get(&pdev->dev, NULL);  in ep93xx_ohci_power_on()
239 	.name		= "ohci-platform",
240 	.id		= -1,
260 	.name		= "physmap-flash",
270  * ep93xx_register_flash() - Register the external flash device.
281 	ep93xx_flash_resource.end	= start + size - 1;  in ep93xx_register_flash()
300 	.name		= "ep93xx-eth",
301 	.id		= -1,
312  * ep93xx_register_eth - Register the built-in ethernet platform device.
315  *		from the IndAd registers (as programmed by the bootloader)
320 		memcpy_fromio(data->dev_addr, EP93XX_ETHERNET_BASE + 0x50, 6);  in ep93xx_register_eth()
331 /* All EP93xx devices use the same two GPIO pins for I2C bit-banging */
333 	.dev_id		= "i2c-gpio.0",
344 	.name		= "i2c-gpio",
352  * ep93xx_register_i2c - Register the i2c platform device.
359 	 * FIXME: this just sets the two pins as non-opendrain, as no  in ep93xx_register_i2c()
363 	 * be. Right now i2c-gpio emulates open drain which is not  in ep93xx_register_i2c()
387 	.name		= "ep93xx-spi",
399  * ep93xx_register_spi() - registers spi platform device
447 	.name		= "ep93xx-pwm",
458 	.name		= "ep93xx-pwm",
478 	if (pdev->id == 0) {  in ep93xx_pwm_acquire_gpio()
480 	} else if (pdev->id == 1) {  in ep93xx_pwm_acquire_gpio()
482 				   dev_name(&pdev->dev));  in ep93xx_pwm_acquire_gpio()
492 		err = -ENODEV;  in ep93xx_pwm_acquire_gpio()
505 	if (pdev->id == 1) {  in ep93xx_pwm_release_gpio()
526 	.name			= "ep93xx-fb",
527 	.id			= -1,
546 	.name		= "ep93xx-bl",
547 	.id		= -1,
553  * ep93xx_register_fb - Register the framebuffer platform device.
575 	.name		= "ep93xx-keypad",
576 	.id		= -1,
585  * ep93xx_register_keypad - Register the keypad platform device.
600 		err = gpio_request(EP93XX_GPIO_LINE_C(i), dev_name(&pdev->dev));  in ep93xx_keypad_acquire_gpio()
603 		err = gpio_request(EP93XX_GPIO_LINE_D(i), dev_name(&pdev->dev));  in ep93xx_keypad_acquire_gpio()
617 	for (--i; i >= 0; --i) {  in ep93xx_keypad_acquire_gpio()
649 	.name		= "ep93xx-i2s",
650 	.id		= -1,
656 	.name		= "ep93xx-pcm-audio",
657 	.id		= -1,
709 	.name		= "ep93xx-ac97",
710 	.id		= -1,
734 	.name		= "ep93xx-wdt",
735 	.id		= -1,
749 	.name		= "ep93xx-ide",
750 	.id		= -1,
769 	err = gpio_request(EP93XX_GPIO_LINE_EGPIO2, dev_name(&pdev->dev));  in ep93xx_ide_acquire_gpio()
772 	err = gpio_request(EP93XX_GPIO_LINE_EGPIO15, dev_name(&pdev->dev));  in ep93xx_ide_acquire_gpio()
776 		err = gpio_request(EP93XX_GPIO_LINE_E(i), dev_name(&pdev->dev));  in ep93xx_ide_acquire_gpio()
781 		err = gpio_request(EP93XX_GPIO_LINE_G(i), dev_name(&pdev->dev));  in ep93xx_ide_acquire_gpio()
786 		err = gpio_request(EP93XX_GPIO_LINE_H(i), dev_name(&pdev->dev));  in ep93xx_ide_acquire_gpio()
798 	for (--i; i >= 0; --i)  in ep93xx_ide_acquire_gpio()
802 	for (--i; i >= 4; --i)  in ep93xx_ide_acquire_gpio()
806 	for (--i; i >= 2; --i)  in ep93xx_ide_acquire_gpio()
845 	.name		= "ep93xx-adc",
846 	.id		= -1,
865  * The Maverick Key is 256 bits of micro fuses blown at the factory during
937 	return kasprintf(GFP_KERNEL,"%s", machine_desc->name);  in ep93xx_get_machine_name()
949 	soc_dev_attr->machine = ep93xx_get_machine_name();  in ep93xx_init_soc()
950 	soc_dev_attr->family = "Cirrus Logic EP93xx";  in ep93xx_init_soc()
951 	soc_dev_attr->revision = ep93xx_get_soc_rev();  in ep93xx_init_soc()
952 	soc_dev_attr->soc_id = ep93xx_get_soc_id();  in ep93xx_init_soc()
956 		kfree(soc_dev_attr->machine);  in ep93xx_init_soc()
991 	gpio_led_register_device(-1, &ep93xx_led_data);  in ep93xx_init_devices()