arch/arm/mach-pxa/gumstix.c

Source file repositories/reference/linux-study-clean/arch/arm/mach-pxa/gumstix.c

File Facts

System
Linux kernel
Corpus path
arch/arm/mach-pxa/gumstix.c
Extension
.c
Size
5226 bytes
Lines
239
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  linux/arch/arm/mach-pxa/gumstix.c
 *
 *  Support for the Gumstix motherboards.
 *
 *  Original Author:	Craig Hughes
 *  Created:	Feb 14, 2008
 *  Copyright:	Craig Hughes
 *
 *  Implemented based on lubbock.c by Nicolas Pitre and code from Craig
 *  Hughes
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/gpio/machine.h>
#include <linux/gpio/property.h>
#include <linux/gpio.h>
#include <linux/err.h>
#include <linux/clk.h>

#include <asm/setup.h>
#include <asm/page.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <linux/sizes.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>

#include "pxa25x.h"
#include <linux/platform_data/mmc-pxamci.h>
#include "udc.h"
#include "gumstix.h"
#include "devices.h"

#include "generic.h"

static struct resource flash_resource = {
	.start	= 0x00000000,
	.end	= SZ_64M - 1,
	.flags	= IORESOURCE_MEM,
};

static struct mtd_partition gumstix_partitions[] = {
	{
		.name =		"Bootloader",
		.size =		0x00040000,
		.offset =	0,
		.mask_flags =	MTD_WRITEABLE  /* force read-only */
	} , {
		.name =		"rootfs",
		.size =		MTDPART_SIZ_FULL,
		.offset =	MTDPART_OFS_APPEND
	}
};

static struct flash_platform_data gumstix_flash_data = {
	.map_name	= "cfi_probe",
	.parts		= gumstix_partitions,
	.nr_parts	= ARRAY_SIZE(gumstix_partitions),
	.width		= 2,
};

static struct platform_device gumstix_flash_device = {
	.name		= "pxa2xx-flash",
	.id		= 0,
	.dev = {
		.platform_data = &gumstix_flash_data,
	},
	.resource = &flash_resource,
	.num_resources = 1,
};

static struct platform_device *devices[] __initdata = {
	&gumstix_flash_device,
};

#ifdef CONFIG_MMC_PXA
static struct pxamci_platform_data gumstix_mci_platform_data = {
	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,

Annotation

Implementation Notes